X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=shell%2Fev-view.c;h=47c4eaec8d5f623de694877daa3a628866652ea5;hb=09d209d90da09650cc2a71d8caf21477e2d85568;hp=cfcc8454889f69f9dfba28181255cc0644df9ebc;hpb=1adce5486b10e763bed869b110ea31d11ef83e0e;p=evince.git diff --git a/shell/ev-view.c b/shell/ev-view.c index cfcc8454..47c4eaec 100644 --- a/shell/ev-view.c +++ b/shell/ev-view.c @@ -19,6 +19,7 @@ */ #include +#include #include #include #include @@ -29,17 +30,22 @@ #include "ev-marshal.h" #include "ev-view.h" +#include "ev-view-private.h" +#include "ev-utils.h" +#include "ev-selection.h" #include "ev-document-find.h" #include "ev-document-misc.h" #include "ev-debug.h" #include "ev-job-queue.h" #include "ev-page-cache.h" #include "ev-pixbuf-cache.h" +#include "ev-tooltip.h" #define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass)) #define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW)) #define EV_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_VIEW, EvViewClass)) + enum { PROP_0, PROP_STATUS, @@ -49,19 +55,25 @@ enum { PROP_FULLSCREEN, PROP_PRESENTATION, PROP_SIZING_MODE, + PROP_ZOOM, + PROP_ROTATION, + PROP_HAS_SELECTION, }; enum { - TARGET_STRING, - TARGET_TEXT, - TARGET_COMPOUND_TEXT, - TARGET_UTF8_STRING, - TARGET_TEXT_BUFFER_CONTENTS + SIGNAL_BINDING_ACTIVATED, + SIGNAL_ZOOM_INVALID, + SIGNAL_EXTERNAL_LINK, + SIGNAL_POPUP_MENU, + N_SIGNALS, }; enum { - EV_SCROLL_PAGE_FORWARD, - EV_SCROLL_PAGE_BACKWARD + TARGET_STRING, + TARGET_TEXT, + TARGET_COMPOUND_TEXT, + TARGET_UTF8_STRING, + TARGET_TEXT_BUFFER_CONTENTS }; static const GtkTargetEntry targets[] = { @@ -71,131 +83,278 @@ static const GtkTargetEntry targets[] = { { "UTF8_STRING", 0, TARGET_UTF8_STRING }, }; +static guint signals[N_SIGNALS]; + typedef enum { - EV_VIEW_CURSOR_NORMAL, - EV_VIEW_CURSOR_LINK, - EV_VIEW_CURSOR_WAIT, - EV_VIEW_CURSOR_HIDDEN, - EV_VIEW_CURSOR_DRAG -} EvViewCursor; + EV_VIEW_FIND_NEXT, + EV_VIEW_FIND_PREV +} EvViewFindDirection; #define ZOOM_IN_FACTOR 1.2 #define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR) #define MIN_SCALE 0.05409 -#define MAX_SCALE 6.0 - -typedef struct { - EvRectangle rect; - int page; -} EvViewSelection; - -typedef struct { - gboolean dragging; - GdkPoint start; - gdouble hadj; - gdouble vadj; -} DragInfo; - -struct _EvView { - GtkWidget parent_instance; - - EvDocument *document; - - GdkWindow *bin_window; - - char *status; - char *find_status; - - int scroll_x; - int scroll_y; - - DragInfo drag_info; - gboolean pressed_button; - GdkPoint selection_start; - GList *selections; - EvViewCursor cursor; - - GtkAdjustment *hadjustment; - GtkAdjustment *vadjustment; - - EvPageCache *page_cache; - EvPixbufCache *pixbuf_cache; - - gint start_page; - gint end_page; - gint current_page; - - EvJobRender *current_job; - - int find_page; - int find_result; - int spacing; - - double scale; - GtkBorder border; - - gboolean continuous; - gboolean dual_page; - gboolean fullscreen; - gboolean presentation; - EvSizingMode sizing_mode; -}; - -struct _EvViewClass { - GtkWidgetClass parent_class; - - void (*set_scroll_adjustments) (EvView *view, - GtkAdjustment *hadjustment, - GtkAdjustment *vadjustment); - void (*scroll_view) (EvView *view, - GtkScrollType scroll, - gboolean horizontal); - -}; - - -static void ev_view_set_scroll_adjustments (EvView *view, - GtkAdjustment *hadjustment, - GtkAdjustment *vadjustment); -static void get_bounding_box_size (EvView *view, - int *max_width, - int *max_height); -static void view_update_range_and_current_page (EvView *view); - -static void page_changed_cb (EvPageCache *page_cache, - int new_page, - EvView *view); +#define MAX_SCALE 4.0 + +#define SCROLL_TIME 150 + +/*** Scrolling ***/ +static void scroll_to_current_page (EvView *view, + GtkOrientation orientation); +static void ev_view_set_scroll_adjustments (EvView *view, + GtkAdjustment *hadjustment, + GtkAdjustment *vadjustment); +static void view_update_range_and_current_page (EvView *view); +static void set_scroll_adjustment (EvView *view, + GtkOrientation orientation, + GtkAdjustment *adjustment); +static void ev_view_set_scroll_adjustments (EvView *view, + GtkAdjustment *hadjustment, + GtkAdjustment *vadjustment); +static void add_scroll_binding_keypad (GtkBindingSet *binding_set, + guint keyval, + GdkModifierType modifiers, + GtkScrollType scroll, + gboolean horizontal); +static void ev_view_binding_activated (EvView *view, + GtkScrollType scroll, + gboolean horizontal); +static void ensure_rectangle_is_visible (EvView *view, + GdkRectangle *rect); + +/*** Geometry computations ***/ +static void compute_border (EvView *view, + int width, + int height, + GtkBorder *border); +static void get_page_y_offset (EvView *view, + int page, + double zoom, + int *y_offset); +static gboolean get_page_extents (EvView *view, + gint page, + GdkRectangle *page_area, + GtkBorder *border); +static void view_rect_to_doc_rect (EvView *view, + GdkRectangle *view_rect, + GdkRectangle *page_area, + EvRectangle *doc_rect); +static void doc_rect_to_view_rect (EvView *view, + int page, + EvRectangle *doc_rect, + GdkRectangle *view_rect); +static void find_page_at_location (EvView *view, + gdouble x, + gdouble y, + gint *page, + gint *x_offset, + gint *y_offset); +static gboolean doc_point_to_view_point (EvView *view, + int page, + EvPoint *doc_point, + GdkPoint *view_point); +/*** Hyperrefs ***/ +static EvLink * ev_view_get_link_at_location (EvView *view, + gdouble x, + gdouble y); +static char* tip_from_link (EvView *view, + EvLink *link); +static void handle_link_over_xy (EvView *view, + gint x, + gint y); +/*** GtkWidget implementation ***/ +static void ev_view_size_request_continuous_dual_page (EvView *view, + GtkRequisition *requisition); +static void ev_view_size_request_continuous (EvView *view, + GtkRequisition *requisition); +static void ev_view_size_request_dual_page (EvView *view, + GtkRequisition *requisition); +static void ev_view_size_request_single_page (EvView *view, + GtkRequisition *requisition); +static void ev_view_size_request (GtkWidget *widget, + GtkRequisition *requisition); +static void ev_view_size_allocate (GtkWidget *widget, + GtkAllocation *allocation); +static void ev_view_realize (GtkWidget *widget); +static gboolean ev_view_scroll_event (GtkWidget *widget, + GdkEventScroll *event); +static gboolean ev_view_expose_event (GtkWidget *widget, + GdkEventExpose *event); +static gboolean ev_view_popup_menu (GtkWidget *widget); +static gboolean ev_view_button_press_event (GtkWidget *widget, + GdkEventButton *event); +static gboolean ev_view_motion_notify_event (GtkWidget *widget, + GdkEventMotion *event); +static gboolean ev_view_button_release_event (GtkWidget *widget, + GdkEventButton *event); +static gboolean ev_view_enter_notify_event (GtkWidget *widget, + GdkEventCrossing *event); +static gboolean ev_view_leave_notify_event (GtkWidget *widget, + GdkEventCrossing *event); +static void ev_view_style_set (GtkWidget *widget, + GtkStyle *old_style); + +static AtkObject *ev_view_get_accessible (GtkWidget *widget); + +/*** Drawing ***/ +static guint32 ev_gdk_color_to_rgb (const GdkColor *color); +static void draw_rubberband (GtkWidget *widget, + GdkWindow *window, + const GdkRectangle *rect, + guchar alpha); +static void highlight_find_results (EvView *view, + int page); +static void draw_one_page (EvView *view, + gint page, + GdkRectangle *page_area, + GtkBorder *border, + GdkRectangle *expose_area); +static void draw_loading_text (EvView *view, + GdkRectangle *page_area, + GdkRectangle *expose_area); + +/*** Callbacks ***/ +static void find_changed_cb (EvDocument *document, + int page, + EvView *view); +static void job_finished_cb (EvPixbufCache *pixbuf_cache, + EvView *view); +static void page_changed_cb (EvPageCache *page_cache, + int new_page, + EvView *view); +static void on_adjustment_value_changed (GtkAdjustment *adjustment, + EvView *view); + +/*** GObject ***/ +static void ev_view_finalize (GObject *object); +static void ev_view_destroy (GtkObject *object); +static void ev_view_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void ev_view_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); +static void ev_view_class_init (EvViewClass *class); +static void ev_view_init (EvView *view); + +/*** Zoom and sizing ***/ +static double zoom_for_size_fit_width (int doc_width, + int doc_height, + int target_width, + int target_height, + int vsb_width); +static double zoom_for_size_fit_height (int doc_width, + int doc_height, + int target_width, + int target_height, + int vsb_height); +static double zoom_for_size_best_fit (int doc_width, + int doc_height, + int target_width, + int target_height, + int vsb_width, + int hsb_width); +static void ev_view_zoom_for_size_presentation (EvView *view, + int width, + int height); +static void ev_view_zoom_for_size_continuous_and_dual_page (EvView *view, + int width, + int height, + int vsb_width, + int hsb_height); +static void ev_view_zoom_for_size_continuous (EvView *view, + int width, + int height, + int vsb_width, + int hsb_height); +static void ev_view_zoom_for_size_dual_page (EvView *view, + int width, + int height, + int vsb_width, + int hsb_height); +static void ev_view_zoom_for_size_single_page (EvView *view, + int width, + int height, + int vsb_width, + int hsb_height); +/*** Cursors ***/ +static GdkCursor* ev_view_create_invisible_cursor (void); +static void ev_view_set_cursor (EvView *view, + EvViewCursor new_cursor); + +/*** Status messages ***/ +static void ev_view_set_status (EvView *view, + const char *message); +static void update_find_status_message (EvView *view); +static void ev_view_set_find_status (EvView *view, + const char *message); +/*** Find ***/ +static void jump_to_find_result (EvView *view); +static void jump_to_find_page (EvView *view, + EvViewFindDirection direction); + +/*** Selection ***/ +static void compute_selections (EvView *view, + GdkPoint *start, + GdkPoint *stop); +static void clear_selection (EvView *view); +static void selection_free (EvViewSelection *selection); +static char* get_selected_text (EvView *ev_view); +static void ev_view_primary_get_cb (GtkClipboard *clipboard, + GtkSelectionData *selection_data, + guint info, + gpointer data); +static void ev_view_primary_clear_cb (GtkClipboard *clipboard, + gpointer data); +static void ev_view_update_primary_selection (EvView *ev_view); G_DEFINE_TYPE (EvView, ev_view, GTK_TYPE_WIDGET) -/*** Helper functions ***/ - static void -view_update_adjustments (EvView *view) +scroll_to_current_page (EvView *view, GtkOrientation orientation) { - int old_x = view->scroll_x; - int old_y = view->scroll_y; + GdkPoint view_point; - if (view->hadjustment) - view->scroll_x = view->hadjustment->value; - else - view->scroll_x = 0; + if (view->document == NULL) { + return; + } - if (view->vadjustment) - view->scroll_y = view->vadjustment->value; - else - view->scroll_y = 0; + doc_point_to_view_point (view, view->current_page, &view->pending_point, &view_point); - if (GTK_WIDGET_REALIZED (view) && - (view->scroll_x != old_x || view->scroll_y != old_y)) { - gdk_window_move (view->bin_window, - view->scroll_x, - view->scroll_y); - // gdk_window_process_updates (view->bin_window, TRUE); + if (orientation == GTK_ORIENTATION_VERTICAL) { + view->pending_point.y = 0; + } else { + view->pending_point.x = 0; } - if (view->document) - view_update_range_and_current_page (view); + if (orientation == GTK_ORIENTATION_VERTICAL) { + if (view->continuous) { + gtk_adjustment_clamp_page (view->vadjustment, + view_point.y - view->spacing / 2, + view_point.y + view->vadjustment->page_size); + } else { + gtk_adjustment_set_value (view->vadjustment, + CLAMP (view_point.y, + view->vadjustment->lower, + view->vadjustment->upper - + view->vadjustment->page_size)); + } + } else { + if (view->dual_page) { + gtk_adjustment_clamp_page (view->hadjustment, + view_point.x, + view_point.x + view->hadjustment->page_size); + } else { + gtk_adjustment_set_value (view->hadjustment, + CLAMP (view_point.x, + view->hadjustment->lower, + view->hadjustment->upper - + view->hadjustment->page_size)); + } + } } static void @@ -204,10 +363,12 @@ view_set_adjustment_values (EvView *view, { GtkWidget *widget = GTK_WIDGET (view); GtkAdjustment *adjustment; - gboolean value_changed = FALSE; int requisition; int allocation; + double factor; + gint new_value; + if (orientation == GTK_ORIENTATION_HORIZONTAL) { requisition = widget->requisition.width; allocation = widget->allocation.width; @@ -221,215 +382,412 @@ view_set_adjustment_values (EvView *view, if (!adjustment) return; + factor = 1.0; + switch (view->pending_scroll) { + case SCROLL_TO_KEEP_POSITION: + factor = (adjustment->value) / adjustment->upper; + break; + case SCROLL_TO_PAGE_POSITION: + break; + case SCROLL_TO_CENTER: + factor = (adjustment->value + adjustment->page_size * 0.5) / adjustment->upper; + break; + } + adjustment->page_size = allocation; adjustment->step_increment = allocation * 0.1; adjustment->page_increment = allocation * 0.9; adjustment->lower = 0; adjustment->upper = MAX (allocation, requisition); - if (adjustment->value > adjustment->upper - adjustment->page_size) { - adjustment->value = adjustment->upper - adjustment->page_size; - value_changed = TRUE; + /* + * We add 0.5 to the values before to average out our rounding errors. + */ + switch (view->pending_scroll) { + case SCROLL_TO_KEEP_POSITION: + new_value = CLAMP (adjustment->upper * factor + 0.5, 0, adjustment->upper - adjustment->page_size); + gtk_adjustment_set_value (adjustment, (int)new_value); + break; + case SCROLL_TO_PAGE_POSITION: + scroll_to_current_page (view, orientation); + break; + case SCROLL_TO_CENTER: + new_value = CLAMP (adjustment->upper * factor - adjustment->page_size * 0.5 + 0.5, + 0, adjustment->upper - adjustment->page_size); + gtk_adjustment_set_value (adjustment, (int)new_value); + break; } gtk_adjustment_changed (adjustment); - if (value_changed) - gtk_adjustment_value_changed (adjustment); } static void view_update_range_and_current_page (EvView *view) { + gint current_page; + + if (view->pending_scroll != SCROLL_TO_KEEP_POSITION) + return; + /* Presentation trumps all other modes */ if (view->presentation) { view->start_page = view->current_page; view->end_page = view->current_page; } else if (view->continuous) { GdkRectangle current_area, unused, page_area; - gint current_page; + GtkBorder border; gboolean found = FALSE; int i; - - get_bounding_box_size (view, &(page_area.width), &(page_area.height)); - page_area.x = view->spacing; - page_area.y = view->spacing; - if (view->hadjustment) { - current_area.x = view->hadjustment->value; - current_area.width = view->hadjustment->page_size; - } else { - current_area.x = page_area.x; - current_area.width = page_area.width; - } + if (!(view->vadjustment && view->hadjustment)) + return; - if (view->vadjustment) { - current_area.y = view->vadjustment->value; - current_area.height = view->vadjustment->page_size; - } else { - current_area.y = page_area.y; - current_area.height = page_area.height; - } + current_area.x = view->hadjustment->value; + current_area.width = view->hadjustment->upper; + current_area.y = view->vadjustment->value; + current_area.height = view->vadjustment->page_size; for (i = 0; i < ev_page_cache_get_n_pages (view->page_cache); i++) { + + get_page_extents (view, i, &page_area, &border); + if (gdk_rectangle_intersect (¤t_area, &page_area, &unused)) { if (! found) { view->start_page = i; found = TRUE; - + } view->end_page = i; } else if (found) { break; } - if (view->dual_page) { - if (i % 2 == 0) { - page_area.x += page_area.width + view->spacing; - } else { - page_area.x = view->spacing; - page_area.y += page_area.height + view->spacing; - } - } else { - page_area.y += page_area.height + view->spacing; - } } - current_page = ev_page_cache_get_current_page (view->page_cache); - - if (current_page < view->start_page || current_page > view->end_page) { - g_signal_handlers_block_by_func (view->page_cache, page_changed_cb, view); - ev_page_cache_set_current_page (view->page_cache, view->start_page); - g_signal_handlers_unblock_by_func (view->page_cache, page_changed_cb, view); - } } else { if (view->dual_page) { - if (view->current_page % 2 == 0) { + if (view->current_page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) { view->start_page = view->current_page; if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) view->end_page = view->start_page + 1; + else + view->end_page = view->start_page; } else { - view->start_page = view->current_page - 1; + if (view->current_page - 1 < 0) + view->start_page = view->current_page; + else + view->start_page = view->current_page - 1; view->end_page = view->current_page; } } else { view->start_page = view->current_page; view->end_page = view->current_page; } + + } + + current_page = ev_page_cache_get_current_page (view->page_cache); + + if (current_page < view->start_page || current_page > view->end_page) { + view->current_page = view->start_page; + ev_page_cache_set_current_page (view->page_cache, view->start_page); } ev_pixbuf_cache_set_page_range (view->pixbuf_cache, view->start_page, view->end_page, - view->scale); + view->rotation, + view->scale, + view->selection_info.selections); } static void -clear_selection (EvView *view) +set_scroll_adjustment (EvView *view, + GtkOrientation orientation, + GtkAdjustment *adjustment) { - g_list_foreach (view->selections, (GFunc)g_free, NULL); - view->selections = NULL; -} + GtkAdjustment **to_set; -/*** Virtual function implementations ***/ + if (orientation == GTK_ORIENTATION_HORIZONTAL) + to_set = &view->hadjustment; + else + to_set = &view->vadjustment; -static void -ev_view_finalize (GObject *object) -{ - EvView *view = EV_VIEW (object); + if (*to_set != adjustment) { + if (*to_set) { + g_signal_handlers_disconnect_by_func (*to_set, + (gpointer) on_adjustment_value_changed, + view); + g_object_unref (*to_set); + } - LOG ("Finalize"); + *to_set = adjustment; + view_set_adjustment_values (view, orientation); - g_free (view->status); - g_free (view->find_status); + if (*to_set) { + g_object_ref (*to_set); + g_signal_connect (*to_set, "value_changed", + G_CALLBACK (on_adjustment_value_changed), view); + } + } +} - clear_selection (view); +static void +ev_view_set_scroll_adjustments (EvView *view, + GtkAdjustment *hadjustment, + GtkAdjustment *vadjustment) +{ + set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment); + set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment); - G_OBJECT_CLASS (ev_view_parent_class)->finalize (object); + on_adjustment_value_changed (NULL, view); } static void -ev_view_destroy (GtkObject *object) +add_scroll_binding_keypad (GtkBindingSet *binding_set, + guint keyval, + GdkModifierType modifiers, + GtkScrollType scroll, + gboolean horizontal) { - EvView *view = EV_VIEW (object); + guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; - if (view->document) { - g_object_unref (view->document); - view->document = NULL; - } - if (view->pixbuf_cache) { - g_object_unref (view->pixbuf_cache); - view->pixbuf_cache = NULL; + gtk_binding_entry_add_signal (binding_set, keyval, modifiers, + "binding_activated", 2, + GTK_TYPE_SCROLL_TYPE, scroll, + G_TYPE_BOOLEAN, horizontal); + gtk_binding_entry_add_signal (binding_set, keypad_keyval, modifiers, + "binding_activated", 2, + GTK_TYPE_SCROLL_TYPE, scroll, + G_TYPE_BOOLEAN, horizontal); +} + +void +ev_view_scroll (EvView *view, + EvScrollType scroll) +{ + GtkAdjustment *adjustment; + double value, increment; + gboolean first_page = FALSE; + gboolean last_page = FALSE; + + /* Assign values for increment and vertical adjustment */ + adjustment = view->vadjustment; + increment = adjustment->page_size * 0.75; + value = adjustment->value; + + /* Assign boolean for first and last page */ + if (view->current_page == 0) + first_page = TRUE; + if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1) + last_page = TRUE; + + switch (scroll) { + case EV_SCROLL_PAGE_BACKWARD: + /* Do not jump backwards if at the first page */ + if (value == (adjustment->lower) && first_page) { + /* Do nothing */ + /* At the top of a page, assign the upper bound limit of previous page */ + } else if (value == (adjustment->lower)) { + value = adjustment->upper - adjustment->page_size; + ev_view_previous_page (view); + /* Jump to the top */ + } else { + value = MAX (value - increment, adjustment->lower); + } + break; + case EV_SCROLL_PAGE_FORWARD: + /* Do not jump forward if at the last page */ + if (value == (adjustment->upper - adjustment->page_size) && last_page) { + /* Do nothing */ + /* At the bottom of a page, assign the lower bound limit of next page */ + } else if (value == (adjustment->upper - adjustment->page_size)) { + value = 0; + ev_view_next_page (view); + /* Jump to the bottom */ + } else { + value = MIN (value + increment, adjustment->upper - adjustment->page_size); + } + break; + default: + break; } - ev_view_set_scroll_adjustments (view, NULL, NULL); - GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object); + gtk_adjustment_set_value (adjustment, value); } static void -compute_border (EvView *view, int width, int height, GtkBorder *border) +ev_view_binding_activated (EvView *view, + GtkScrollType scroll, + gboolean horizontal) { + GtkAdjustment *adjustment; + double value; + if (view->presentation) { - border->left = 0; - border->right = 0; - border->top = 0; - border->bottom = 0; - } else { - ev_document_misc_get_page_border_size (width, height, border); + switch (scroll) { + case GTK_SCROLL_STEP_BACKWARD: + ev_view_previous_page (view); + break; + case GTK_SCROLL_STEP_FORWARD: + ev_view_next_page (view); + break; + default: + break; + } + return; } -} -static gboolean -get_page_extents (EvView *view, - gint page, - GdkRectangle *page_area, - GtkBorder *border) -{ - GtkWidget *widget; - int width, height; + if (horizontal) { + adjustment = view->hadjustment; + } else { + adjustment = view->vadjustment; + } - widget = GTK_WIDGET (view); + value = adjustment->value; - /* Quick sanity check */ - if (view->presentation) { - if (view->current_page != page) - return FALSE; - } else if (view->continuous) { - if (page < view->start_page || - page > view->end_page) - return FALSE; - } else if (view->dual_page) { - if (ABS (page - view->current_page) > 1) - return FALSE; - } else { - if (view->current_page != page) - return FALSE; + switch (scroll) { + case GTK_SCROLL_STEP_BACKWARD: + value -= adjustment->step_increment; + break; + case GTK_SCROLL_STEP_FORWARD: + value += adjustment->step_increment; + break; + case GTK_SCROLL_STEP_DOWN: + value -= adjustment->step_increment/10; + break; + case GTK_SCROLL_STEP_UP: + value += adjustment->step_increment/10; + break; + default: + break; } - /* Get the size of the page */ - ev_page_cache_get_size (view->page_cache, page, - view->scale, - &width, &height); - compute_border (view, width, height, border); - page_area->width = width + border->left + border->right; - page_area->height = height + border->top + border->bottom; + value = CLAMP (value, adjustment->lower, + adjustment->upper - adjustment->page_size); - if (view->presentation) { - page_area->x = (MAX (0, widget->allocation.width - width))/2; - page_area->y = (MAX (0, widget->allocation.height - height))/2; - } else if (view->continuous) { - gint max_width, max_height; - gint x, y; + gtk_adjustment_set_value (adjustment, value); +} - get_bounding_box_size (view, &max_width, &max_height); - /* Get the location of the bounding box */ - if (view->dual_page) { - x = view->spacing + (page % 2) * (max_width + view->spacing); - y = view->spacing + (page / 2) * (max_height + view->spacing); - x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2; - } else { +#define MARGIN 5 + +static void +ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect) +{ + GtkWidget *widget = GTK_WIDGET (view); + GtkAdjustment *adjustment; + int value; + + view->pending_scroll = SCROLL_TO_KEEP_POSITION; + + adjustment = view->vadjustment; + + if (rect->y < adjustment->value) { + value = MAX (adjustment->lower, rect->y - MARGIN); + gtk_adjustment_set_value (view->vadjustment, value); + } else if (rect->y + rect->height > + adjustment->value + widget->allocation.height) { + value = MIN (adjustment->upper, rect->y + rect->height - + widget->allocation.height + MARGIN); + gtk_adjustment_set_value (view->vadjustment, value); + } + + adjustment = view->hadjustment; + + if (rect->x < adjustment->value) { + value = MAX (adjustment->lower, rect->x - MARGIN); + gtk_adjustment_set_value (view->hadjustment, value); + } else if (rect->x + rect->height > + adjustment->value + widget->allocation.width) { + value = MIN (adjustment->upper, rect->x + rect->width - + widget->allocation.width + MARGIN); + gtk_adjustment_set_value (view->hadjustment, value); + } +} + +/*** Geometry computations ***/ + +static void +compute_border (EvView *view, int width, int height, GtkBorder *border) +{ + if (view->presentation) { + border->left = 0; + border->right = 0; + border->top = 0; + border->bottom = 0; + } else { + ev_document_misc_get_page_border_size (width, height, border); + } +} + +static void +get_page_y_offset (EvView *view, int page, double zoom, int *y_offset) +{ + int max_width, offset; + GtkBorder border; + + g_return_if_fail (y_offset != NULL); + + ev_page_cache_get_max_width (view->page_cache, view->rotation, zoom, &max_width); + + compute_border (view, max_width, max_width, &border); + + if (view->dual_page) { + ev_page_cache_get_height_to_page (view->page_cache, page, + view->rotation, zoom, NULL, &offset); + offset += ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 + 1) * view->spacing + ((page + ev_page_cache_get_dual_even_left (view->page_cache)) / 2 ) * (border.top + border.bottom); + } else { + ev_page_cache_get_height_to_page (view->page_cache, page, + view->rotation, zoom, &offset, NULL); + offset += (page + 1) * view->spacing + page * (border.top + border.bottom); + } + + *y_offset = offset; + return; +} + +static gboolean +get_page_extents (EvView *view, + gint page, + GdkRectangle *page_area, + GtkBorder *border) +{ + GtkWidget *widget; + int width, height; + + widget = GTK_WIDGET (view); + + /* Get the size of the page */ + ev_page_cache_get_size (view->page_cache, page, + view->rotation, + view->scale, + &width, &height); + compute_border (view, width, height, border); + page_area->width = width + border->left + border->right; + page_area->height = height + border->top + border->bottom; + + if (view->presentation) { + page_area->x = (MAX (0, widget->allocation.width - width))/2; + page_area->y = (MAX (0, widget->allocation.height - height))/2; + } else if (view->continuous) { + gint max_width; + gint x, y; + + ev_page_cache_get_max_width (view->page_cache, view->rotation, + view->scale, &max_width); + max_width = max_width + border->left + border->right; + /* Get the location of the bounding box */ + if (view->dual_page) { + x = view->spacing + ((page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? 0 : 1) * (max_width + view->spacing); + x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2; + if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) + x = x + (max_width - width - border->left - border->right); + } else { x = view->spacing; - y = view->spacing + page * (max_height + view->spacing); - x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2; + x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2)) / 2; } + + get_page_y_offset (view, page, view->scale, &y); + page_area->x = x; page_area->y = y; } else { @@ -441,12 +799,14 @@ get_page_extents (EvView *view, GtkBorder overall_border; gint other_page; - other_page = page ^ 1; + other_page = (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) ? page + 1: page - 1; /* First, we get the bounding box of the two pages */ - if (other_page < ev_page_cache_get_n_pages (view->page_cache)) { + if (other_page < ev_page_cache_get_n_pages (view->page_cache) + && (0 <= other_page)) { ev_page_cache_get_size (view->page_cache, - page + 1, + other_page, + view->rotation, view->scale, &width_2, &height_2); if (width_2 > width) @@ -461,7 +821,7 @@ get_page_extents (EvView *view, y = view->spacing; /* Adjust for being the left or right page */ - if (page % 2 == 0) + if (page % 2 == ev_page_cache_get_dual_even_left (view->page_cache)) x = x + max_width - width; else x = x + (max_width + overall_border.left + overall_border.right) + view->spacing; @@ -477,8 +837,8 @@ get_page_extents (EvView *view, y = view->spacing; /* Adjust for extra allocation */ - x = x + MAX (0, widget->allocation.width - (width + view->spacing * 2))/2; - y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2; + x = x + MAX (0, widget->allocation.width - (width + border->left + border->right + view->spacing * 2))/2; + y = y + MAX (0, widget->allocation.height - (height + border->top + border->bottom + view->spacing * 2))/2; } page_area->x = x; @@ -488,46 +848,70 @@ get_page_extents (EvView *view, return TRUE; } +static void +view_point_to_doc_point (EvView *view, + GdkPoint *view_point, + GdkRectangle *page_area, + double *doc_point_x, + double *doc_point_y) +{ + *doc_point_x = (double) (view_point->x - page_area->x) / view->scale; + *doc_point_y = (double) (view_point->y - page_area->y) / view->scale; +} + static void view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, GdkRectangle *page_area, EvRectangle *doc_rect) { - doc_rect->x1 = floor ((view_rect->x - page_area->x) / view->scale); - doc_rect->y1 = floor ((view_rect->y - page_area->y) / view->scale); - doc_rect->x2 = doc_rect->x1 + ceil (view_rect->width / view->scale); - doc_rect->y2 = doc_rect->y1 + ceil (view_rect->height / view->scale); + doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale; + doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale; + doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale; + doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale; } -static void -compute_selections (EvView *view, GdkRectangle *view_rect) +static gboolean +doc_point_to_view_point (EvView *view, + int page, + EvPoint *doc_point, + GdkPoint *view_point) { - int n_pages, i; - - clear_selection (view); + GdkRectangle page_area; + GtkBorder border; + double x, y, view_x, view_y; + int width, height; - n_pages = ev_page_cache_get_n_pages (view->page_cache); - for (i = 0; i < n_pages; i++) { - GdkRectangle page_area; - GtkBorder border; + ev_page_cache_get_size (view->page_cache, page, + view->rotation, + 1.0, + &width, &height); - if (get_page_extents (view, i, &page_area, &border)) { - GdkRectangle overlap; + if (view->rotation == 0) { + x = doc_point->x; + y = doc_point->y; + } else if (view->rotation == 90) { + x = width - doc_point->y; + y = doc_point->x; + } else if (view->rotation == 180) { + x = width - doc_point->x; + y = height - doc_point->y; + } else if (view->rotation == 270) { + x = doc_point->y; + y = height - doc_point->x; + } else { + g_assert_not_reached (); + } - if (gdk_rectangle_intersect (&page_area, view_rect, &overlap)) { - EvViewSelection *selection; + get_page_extents (view, page, &page_area, &border); - selection = g_new0 (EvViewSelection, 1); - selection->page = i; - view_rect_to_doc_rect (view, &overlap, &page_area, - &(selection->rect)); + view_x = x * view->scale; + view_y = y * view->scale; + view_point->x = view_x + page_area.x; + view_point->y = view_y + page_area.y; - view->selections = g_list_append - (view->selections, selection); - } - } - } + return (view_x > 0 && view_x <= page_area.width && + view_y > 0 && view_y <= page_area.height); } static void @@ -538,107 +922,479 @@ doc_rect_to_view_rect (EvView *view, { GdkRectangle page_area; GtkBorder border; + double x, y, w, h; int width, height; + ev_page_cache_get_size (view->page_cache, page, + view->rotation, + 1.0, + &width, &height); + + if (view->rotation == 0) { + x = doc_rect->x1; + y = doc_rect->y1; + w = doc_rect->x2 - doc_rect->x1; + h = doc_rect->y2 - doc_rect->y1; + } else if (view->rotation == 90) { + x = width - doc_rect->y2; + y = doc_rect->x1; + w = doc_rect->y2 - doc_rect->y1; + h = doc_rect->x2 - doc_rect->x1; + } else if (view->rotation == 180) { + x = width - doc_rect->x2; + y = height - doc_rect->y2; + w = doc_rect->x2 - doc_rect->x1; + h = doc_rect->y2 - doc_rect->y1; + } else if (view->rotation == 270) { + x = doc_rect->y1; + y = height - doc_rect->x2; + w = doc_rect->y2 - doc_rect->y1; + h = doc_rect->x2 - doc_rect->x1; + } else { + g_assert_not_reached (); + } + get_page_extents (view, page, &page_area, &border); - width = doc_rect->x2 - doc_rect->x1; - height = doc_rect->y2 - doc_rect->y1; - view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x; - view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y; - view_rect->width = ceil (width * view->scale); - view_rect->height = ceil (height * view->scale); + view_rect->x = x * view->scale + page_area.x; + view_rect->y = y * view->scale + page_area.y; + view_rect->width = w * view->scale; + view_rect->height = h * view->scale; } static void -get_bounding_box_size (EvView *view, int *max_width, int *max_height) +find_page_at_location (EvView *view, + gdouble x, + gdouble y, + gint *page, + gint *x_offset, + gint *y_offset) { - GtkBorder border; - int width, height; + int i; + + if (view->document == NULL) + return; + + g_assert (page); + g_assert (x_offset); + g_assert (y_offset); + + for (i = view->start_page; i <= view->end_page; i++) { + GdkRectangle page_area; + GtkBorder border; + + if (! get_page_extents (view, i, &page_area, &border)) + continue; - if (max_width) { - ev_page_cache_get_max_width_size (view->page_cache, - view->scale, - &width, &height); - compute_border (view, width, height, &border); - *max_width = width + border.left + border.right; + if ((x >= page_area.x + border.left) && + (x < page_area.x + page_area.width - border.right) && + (y >= page_area.y + border.top) && + (y < page_area.y + page_area.height - border.bottom)) { + *page = i; + *x_offset = x - (page_area.x + border.left); + *y_offset = y - (page_area.y + border.top); + return; + } } + *page = -1; +} + +static gboolean +location_in_text (EvView *view, + gdouble x, + gdouble y) +{ + GdkRegion *region; + gint page = -1; + gint x_offset = 0, y_offset = 0; + + find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + + if (page == -1) + return FALSE; + + region = ev_pixbuf_cache_get_text_mapping (view->pixbuf_cache, page); + + if (region) + return gdk_region_point_in (region, x_offset / view->scale, y_offset / view->scale); + else + return FALSE; +} + +static int +ev_view_get_width (EvView *view) +{ + return GTK_WIDGET (view)->allocation.width; +} + +static int +ev_view_get_height (EvView *view) +{ + return GTK_WIDGET (view)->allocation.height; +} + +static gboolean +location_in_selected_text (EvView *view, + gdouble x, + gdouble y) +{ + gint page = -1; + gint x_offset = 0, y_offset = 0; + EvViewSelection *selection; + GList *l = NULL; - if (max_height) { - ev_page_cache_get_max_height_size (view->page_cache, - view->scale, - &width, &height); - compute_border (view, width, height, &border); - *max_height = height + border.top + border.bottom; + for (l = view->selection_info.selections; l != NULL; l = l->next) { + selection = (EvViewSelection *)l->data; + + find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + + if (page != selection->page) + continue; + + if (selection->covered_region && + gdk_region_point_in (selection->covered_region, x_offset, y_offset)) + return TRUE; } + + return FALSE; } +/*** Hyperref ***/ +static EvLink * +ev_view_get_link_at_location (EvView *view, + gdouble x, + gdouble y) +{ + gint page = -1; + gint x_offset = 0, y_offset = 0; + GList *link_mapping; + + x += view->scroll_x; + y += view->scroll_y; + + find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + + if (page == -1) + return NULL; + + link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page); + + if (link_mapping) + return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale); + else + return NULL; +} static void -ev_view_size_request_continuous_and_dual_page (EvView *view, - GtkRequisition *requisition) +goto_fitr_link (EvView *view, EvLink *link) { - int max_width, max_height; - int n_rows; + EvPoint doc_point; + int page; + double zoom; - get_bounding_box_size (view, &max_width, &max_height); + zoom = zoom_for_size_best_fit (ev_link_get_right (link) - ev_link_get_left (link), + ev_link_get_top (link) - ev_link_get_bottom (link), + ev_view_get_width (view), + ev_view_get_height (view), 0, 0); - n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2; + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + ev_view_set_zoom (view, zoom, FALSE); - requisition->width = (max_width * 2) + (view->spacing * 3); - requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1)); + page = ev_link_get_page (link); + doc_point.x = ev_link_get_left (link); + doc_point.y = ev_link_get_top (link); + + view->current_page = page; + view->pending_point = doc_point; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; - if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { - requisition->width = 1; - } else if (view->sizing_mode == EV_SIZING_BEST_FIT) { - requisition->width = 1; - /* FIXME: This could actually be set on one page docs or docs - * with a strange aspect ratio. */ - /* requisition->height = 1;*/ - } + gtk_widget_queue_resize (GTK_WIDGET (view)); } static void -ev_view_size_request_continuous (EvView *view, - GtkRequisition *requisition) +goto_fitv_link (EvView *view, EvLink *link) { - int max_width, max_height; - int n_pages; + EvPoint doc_point; + int doc_width, doc_height, page; + double zoom; - get_bounding_box_size (view, &max_width, &max_height); + page = ev_link_get_page (link); + ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height); - n_pages = ev_page_cache_get_n_pages (view->page_cache); + doc_point.x = ev_link_get_left (link); + doc_point.y = 0; - requisition->width = max_width + (view->spacing * 2); - requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1)); + zoom = zoom_for_size_fit_height (doc_width - doc_point.x , doc_height, + ev_view_get_width (view), + ev_view_get_height (view), 0); - if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { - requisition->width = 1; - } else if (view->sizing_mode == EV_SIZING_BEST_FIT) { - requisition->width = 1; - /* FIXME: This could actually be set on one page docs or docs - * with a strange aspect ratio. */ - /* requisition->height = 1;*/ - } + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + ev_view_set_zoom (view, zoom, FALSE); + + view->current_page = page; + view->pending_point = doc_point; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; + + gtk_widget_queue_resize (GTK_WIDGET (view)); } static void -ev_view_size_request_dual_page (EvView *view, - GtkRequisition *requisition) +goto_fith_link (EvView *view, EvLink *link) { - GtkBorder border; - gint width, height; + EvPoint doc_point; + int doc_width, doc_height, page; + double zoom; - /* Find the largest of the two. */ - ev_page_cache_get_size (view->page_cache, - view->current_page, - view->scale, - &width, &height); - if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) { - gint width_2, height_2; - ev_page_cache_get_size (view->page_cache, - view->current_page + 1, + page = ev_link_get_page (link); + ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height); + + doc_point.x = 0; + doc_point.y = doc_height - ev_link_get_top (link); + + zoom = zoom_for_size_fit_width (doc_width, ev_link_get_top (link), + ev_view_get_width (view), + ev_view_get_height (view), 0); + + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + ev_view_set_zoom (view, zoom, FALSE); + + view->current_page = page; + view->pending_point = doc_point; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; + + gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +goto_fit_link (EvView *view, EvLink *link) +{ + double zoom; + int doc_width, doc_height; + int page; + + page = ev_link_get_page (link); + ev_page_cache_get_size (view->page_cache, page, 0, 1.0, &doc_width, &doc_height); + + zoom = zoom_for_size_best_fit (doc_width, doc_height, ev_view_get_width (view), + ev_view_get_height (view), 0, 0); + + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + ev_view_set_zoom (view, zoom, FALSE); + + view->current_page = page; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; + + gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +static void +goto_xyz_link (EvView *view, EvLink *link) +{ + EvPoint doc_point; + int height, page; + double zoom; + + zoom = ev_link_get_zoom (link); + page = ev_link_get_page (link); + ev_page_cache_get_size (view->page_cache, page, 0, 1.0, NULL, &height); + + if (zoom != 0) { + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + ev_view_set_zoom (view, zoom, FALSE); + } + + doc_point.x = ev_link_get_left (link); + doc_point.y = height - ev_link_get_top (link); + + view->current_page = page; + view->pending_point = doc_point; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; + + gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +void +ev_view_goto_link (EvView *view, EvLink *link) +{ + EvLinkType type; + int page; + + type = ev_link_get_link_type (link); + + switch (type) { + case EV_LINK_TYPE_TITLE: + break; + case EV_LINK_TYPE_PAGE: + page = ev_link_get_page (link); + ev_page_cache_set_current_page (view->page_cache, page); + break; + case EV_LINK_TYPE_PAGE_FIT: + goto_fit_link (view, link); + break; + case EV_LINK_TYPE_PAGE_FITH: + goto_fith_link (view, link); + break; + case EV_LINK_TYPE_PAGE_FITV: + goto_fitv_link (view, link); + break; + case EV_LINK_TYPE_PAGE_FITR: + goto_fitr_link (view, link); + break; + case EV_LINK_TYPE_PAGE_XYZ: + goto_xyz_link (view, link); + break; + case EV_LINK_TYPE_EXTERNAL_URI: + case EV_LINK_TYPE_LAUNCH: + g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, link); + break; + } +} + +static char * +tip_from_link (EvView *view, EvLink *link) +{ + EvLinkType type; + char *msg = NULL; + char *page_label; + + type = ev_link_get_link_type (link); + + switch (type) { + case EV_LINK_TYPE_TITLE: + if (ev_link_get_title (link)) + msg = g_strdup (ev_link_get_title (link)); + break; + case EV_LINK_TYPE_PAGE: + case EV_LINK_TYPE_PAGE_XYZ: + page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link)); + msg = g_strdup_printf (_("Go to page %s"), page_label); + g_free (page_label); + break; + case EV_LINK_TYPE_EXTERNAL_URI: + msg = g_strdup (ev_link_get_uri (link)); + break; + default: + break; + } + + return msg; +} + +static void +handle_link_over_xy (EvView *view, gint x, gint y) +{ + EvLink *link; + + link = ev_view_get_link_at_location (view, x, y); + + if (view->link_tooltip == NULL) { + view->link_tooltip = ev_tooltip_new (GTK_WIDGET (view)); + } + + if (view->hovered_link != link) { + view->hovered_link = link; + ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip)); + } + + if (link) { + char *msg = tip_from_link (view, link); + + if (msg && g_utf8_validate (msg, -1, NULL)) { + EvTooltip *tooltip = EV_TOOLTIP (view->link_tooltip); + + ev_tooltip_set_position (tooltip, x, y); + ev_tooltip_set_text (tooltip, msg); + ev_tooltip_activate (tooltip); + } + g_free (msg); + + ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); + } else if (location_in_text (view, x + view->scroll_x, y + view->scroll_y)) { + ev_view_set_cursor (view, EV_VIEW_CURSOR_IBEAM); + } else { + ev_view_set_status (view, NULL); + if (view->cursor == EV_VIEW_CURSOR_LINK || + view->cursor == EV_VIEW_CURSOR_IBEAM) + ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); + } + return; +} + +/*** GtkWidget implementation ***/ + +static void +ev_view_size_request_continuous_dual_page (EvView *view, + GtkRequisition *requisition) +{ + int max_width; + gint n_pages; + GtkBorder border; + + ev_page_cache_get_max_width (view->page_cache, view->rotation, + view->scale, &max_width); + compute_border (view, max_width, max_width, &border); + + n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1; + + requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3); + get_page_y_offset (view, n_pages, view->scale, &requisition->height); + + if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { + requisition->width = 1; + } else if (view->sizing_mode == EV_SIZING_BEST_FIT) { + requisition->width = 1; + /* FIXME: This could actually be set on one page docs or docs + * with a strange aspect ratio. */ + /* requisition->height = 1;*/ + } +} + +static void +ev_view_size_request_continuous (EvView *view, + GtkRequisition *requisition) +{ + int max_width; + int n_pages; + GtkBorder border; + + + ev_page_cache_get_max_width (view->page_cache, view->rotation, + view->scale, &max_width); + n_pages = ev_page_cache_get_n_pages (view->page_cache); + compute_border (view, max_width, max_width, &border); + + requisition->width = max_width + (view->spacing * 2) + border.left + border.right; + get_page_y_offset (view, n_pages, view->scale, &requisition->height); + + if (view->sizing_mode == EV_SIZING_FIT_WIDTH) { + requisition->width = 1; + } else if (view->sizing_mode == EV_SIZING_BEST_FIT) { + requisition->width = 1; + /* FIXME: This could actually be set on one page docs or docs + * with a strange aspect ratio. */ + /* requisition->height = 1;*/ + } +} + +static void +ev_view_size_request_dual_page (EvView *view, + GtkRequisition *requisition) +{ + GtkBorder border; + gint width, height; + + /* Find the largest of the two. */ + ev_page_cache_get_size (view->page_cache, + view->current_page, + view->rotation, + view->scale, + &width, &height); + if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) { + gint width_2, height_2; + ev_page_cache_get_size (view->page_cache, + view->current_page + 1, + view->rotation, view->scale, &width_2, &height_2); if (width_2 > width) { @@ -670,6 +1426,7 @@ ev_view_size_request_single_page (EvView *view, ev_page_cache_get_size (view->page_cache, view->current_page, + view->rotation, view->scale, &width, &height); compute_border (view, width, height, &border); @@ -692,9 +1449,6 @@ ev_view_size_request (GtkWidget *widget, { EvView *view = EV_VIEW (widget); - if (!GTK_WIDGET_REALIZED (widget)) - return; - if (view->document == NULL) { requisition->width = 1; requisition->height = 1; @@ -708,7 +1462,7 @@ ev_view_size_request (GtkWidget *widget, } if (view->continuous && view->dual_page) - ev_view_size_request_continuous_and_dual_page (view, requisition); + ev_view_size_request_continuous_dual_page (view, requisition); else if (view->continuous) ev_view_size_request_continuous (view, requisition); else if (view->dual_page) @@ -723,19 +1477,24 @@ ev_view_size_allocate (GtkWidget *widget, { EvView *view = EV_VIEW (widget); - GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation); + if (view->sizing_mode == EV_SIZING_FIT_WIDTH || + view->sizing_mode == EV_SIZING_BEST_FIT) { + + g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0); + + ev_view_size_request (widget, &widget->requisition); + } view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL); view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL); - if (GTK_WIDGET_REALIZED (widget)) { - gdk_window_resize (view->bin_window, - MAX (widget->allocation.width, widget->requisition.width), - MAX (widget->allocation.height, widget->requisition.height)); - } + view->pending_scroll = SCROLL_TO_KEEP_POSITION; + view->pending_resize = FALSE; if (view->document) view_update_range_and_current_page (view); + + GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation); } static void @@ -756,913 +1515,776 @@ ev_view_realize (GtkWidget *widget) attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; - attributes.event_mask = 0; - - widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), - &attributes, - GDK_WA_X | GDK_WA_Y | - GDK_WA_COLORMAP | - GDK_WA_VISUAL); - gdk_window_set_user_data (widget->window, widget); - widget->style = gtk_style_attach (widget->style, widget->window); - gdk_window_set_background (widget->window, &widget->style->mid[widget->state]); - - attributes.x = 0; - attributes.y = 0; - attributes.width = MAX (widget->allocation.width, widget->requisition.width); - attributes.height = MAX (widget->allocation.height, widget->requisition.height); attributes.event_mask = GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_SCROLL_MASK | GDK_KEY_PRESS_MASK | GDK_POINTER_MOTION_MASK | + GDK_POINTER_MOTION_HINT_MASK | + GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK; - view->bin_window = gdk_window_new (widget->window, - &attributes, - GDK_WA_X | GDK_WA_Y | - GDK_WA_COLORMAP | - GDK_WA_VISUAL); - gdk_window_set_user_data (view->bin_window, widget); - gdk_window_show (view->bin_window); + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, + GDK_WA_X | GDK_WA_Y | + GDK_WA_COLORMAP | + GDK_WA_VISUAL); + gdk_window_set_user_data (widget->window, widget); + widget->style = gtk_style_attach (widget->style, widget->window); - widget->style = gtk_style_attach (widget->style, view->bin_window); if (view->presentation) - gdk_window_set_background (view->bin_window, &widget->style->black); + gdk_window_set_background (widget->window, &widget->style->black); else - gdk_window_set_background (view->bin_window, &widget->style->mid [GTK_STATE_NORMAL]); - - if (view->document) { - /* We can't get page size without a target, so we have to - * queue a size request at realization. Could be fixed - * with EvDocument changes to allow setting a GdkScreen - * without setting a target. - */ - gtk_widget_queue_resize (widget); - } -} - -static void -ev_view_unrealize (GtkWidget *widget) -{ - EvView *view = EV_VIEW (widget); - - gdk_window_set_user_data (view->bin_window, NULL); - gdk_window_destroy (view->bin_window); - view->bin_window = NULL; - - GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget); + gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]); } static gboolean ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event) { - EvView *view = EV_VIEW (widget); + EvView *view = EV_VIEW (widget); + guint state; - if ((event->state & GDK_CONTROL_MASK) != 0) { + state = event->state & gtk_accelerator_get_default_mod_mask (); - ev_view_set_sizing_mode (view, EV_SIZING_FREE); + if (state == GDK_CONTROL_MASK && view->presentation == FALSE) { + ev_view_set_sizing_mode (view, EV_SIZING_FREE); - if ((event->direction == GDK_SCROLL_UP || - event->direction == GDK_SCROLL_LEFT) && - ev_view_can_zoom_in (view)) { + if (event->direction == GDK_SCROLL_UP || + event->direction == GDK_SCROLL_LEFT) { + if (ev_view_can_zoom_in (view)) { ev_view_zoom_in (view); - } else if (ev_view_can_zoom_out (view)) { + } + } else { + if (ev_view_can_zoom_out (view)) { ev_view_zoom_out (view); - } + } + } - return TRUE; + return TRUE; } - - if ((event->state & GDK_SHIFT_MASK) != 0) { + + /* Shift+Wheel scrolls the in the perpendicular direction */ + if (state & GDK_SHIFT_MASK) { if (event->direction == GDK_SCROLL_UP) event->direction = GDK_SCROLL_LEFT; + if (event->direction == GDK_SCROLL_LEFT) + event->direction = GDK_SCROLL_UP; if (event->direction == GDK_SCROLL_DOWN) event->direction = GDK_SCROLL_RIGHT; + if (event->direction == GDK_SCROLL_RIGHT) + event->direction = GDK_SCROLL_DOWN; + + event->state &= ~GDK_SHIFT_MASK; + state &= ~GDK_SHIFT_MASK; + } + + if (state == 0 && view->presentation) { + switch (event->direction) { + case GDK_SCROLL_DOWN: + case GDK_SCROLL_RIGHT: + ev_view_next_page (view); + break; + case GDK_SCROLL_UP: + case GDK_SCROLL_LEFT: + ev_view_previous_page (view); + break; + } + + return TRUE; } return FALSE; } -static guint32 -ev_gdk_color_to_rgb (const GdkColor *color) +static EvViewSelection * +find_selection_for_page (EvView *view, + gint page) { - guint32 result; - result = (0xff0000 | (color->red & 0xff00)); - result <<= 8; - result |= ((color->green & 0xff00) | (color->blue >> 8)); - return result; -} + GList *list; -static void -draw_rubberband (GtkWidget *widget, GdkWindow *window, - const GdkRectangle *rect, guchar alpha) -{ - GdkGC *gc; - GdkPixbuf *pixbuf; - GdkColor *fill_color_gdk; - guint fill_color; + for (list = view->selection_info.selections; list != NULL; list = list->next) { + EvViewSelection *selection; - fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]); - fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha; + selection = (EvViewSelection *) list->data; - pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, - rect->width, rect->height); - gdk_pixbuf_fill (pixbuf, fill_color); + if (selection->page == page) + return selection; + } - gdk_draw_pixbuf (window, NULL, pixbuf, - 0, 0, - rect->x, rect->y, - rect->width, rect->height, - GDK_RGB_DITHER_NONE, - 0, 0); + return NULL; +} - g_object_unref (pixbuf); +static gboolean +ev_view_expose_event (GtkWidget *widget, + GdkEventExpose *event) +{ + EvView *view = EV_VIEW (widget); + int i; - gc = gdk_gc_new (window); - gdk_gc_set_rgb_fg_color (gc, fill_color_gdk); - gdk_draw_rectangle (window, gc, FALSE, - rect->x, rect->y, - rect->width - 1, - rect->height - 1); - g_object_unref (gc); + if (view->loading) { + draw_loading_text (view, + &(widget->allocation), + &(event->area)); + } - gdk_color_free (fill_color_gdk); -} + if (view->document == NULL) + return FALSE; + for (i = view->start_page; i <= view->end_page; i++) { + GdkRectangle page_area; + GtkBorder border; -static void -highlight_find_results (EvView *view, int page) -{ - EvDocumentFind *find; - int i, results = 0; - - g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document)); + if (!get_page_extents (view, i, &page_area, &border)) + continue; - find = EV_DOCUMENT_FIND (view->document); + page_area.x -= view->scroll_x; + page_area.y -= view->scroll_y; - results = ev_document_find_get_n_results (find, page); + draw_one_page (view, i, &page_area, &border, &(event->area)); - for (i = 0; i < results; i++) { - EvRectangle rectangle; - GdkRectangle view_rectangle; - guchar alpha; + if (EV_IS_DOCUMENT_FIND (view->document)) + highlight_find_results (view, i); + } - if (i == view->find_result && page == view->find_page) { - alpha = 0x90; - } else { - alpha = 0x20; - } + return FALSE; +} - ev_document_find_get_result (find, page, - i, &rectangle); - doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle); - draw_rubberband (GTK_WIDGET (view), view->bin_window, - &view_rectangle, alpha); - } +static gboolean +ev_view_popup_menu (GtkWidget *widget) +{ + gint x, y; + EvLink *link; + EvView *view = EV_VIEW (widget); + + gtk_widget_get_pointer (widget, &x, &y); + link = ev_view_get_link_at_location (view, x, y); + g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link); + return TRUE; } -static void -draw_one_page (EvView *view, - gint page, - GdkRectangle *page_area, - GtkBorder *border, - GdkRectangle *expose_area) +static gboolean +ev_view_button_press_event (GtkWidget *widget, + GdkEventButton *event) { - gint width, height; - GdkPixbuf *scaled_image; - GdkPixbuf *current_pixbuf; - GdkRectangle overlap; - GdkRectangle real_page_area; + EvView *view = EV_VIEW (widget); + EvLink *link; + + if (!GTK_WIDGET_HAS_FOCUS (widget)) { + gtk_widget_grab_focus (widget); + } + + view->pressed_button = event->button; + view->selection_info.in_drag = FALSE; + + switch (event->button) { + case 1: + if (view->selection_info.selections) { + if (location_in_selected_text (view, + event->x + view->scroll_x, + event->y + view->scroll_y)) { + view->selection_info.in_drag = TRUE; + } else { + clear_selection (view); + } + + gtk_widget_queue_draw (widget); + } - g_assert (view->document); + view->selection_info.start.x = event->x + view->scroll_x; + view->selection_info.start.y = event->y + view->scroll_y; + + return TRUE; + case 2: + /* use root coordinates as reference point because + * scrolling changes window relative coordinates */ + view->drag_info.start.x = event->x_root; + view->drag_info.start.y = event->y_root; + view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment); + view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment); - if (! gdk_rectangle_intersect (page_area, expose_area, &overlap)) - return; + ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG); - ev_page_cache_get_size (view->page_cache, - page, view->scale, - &width, &height); + return TRUE; + case 3: + link = ev_view_get_link_at_location (view, event->x, event->y); + g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link); + return TRUE; + } + + return FALSE; +} - ev_document_misc_paint_one_page (view->bin_window, - GTK_WIDGET (view), - page_area, border); +static void +ev_view_drag_data_get (GtkWidget *widget, + GdkDragContext *context, + GtkSelectionData *selection_data, + guint info, + guint time) +{ + EvView *view = EV_VIEW (widget); - /* Render the document itself */ - real_page_area = *page_area; + if (view->selection_info.selections && + ev_document_can_get_text (view->document)) { + gchar *text; - real_page_area.x += border->left; - real_page_area.y += border->top; - real_page_area.width -= (border->left + border->right); - real_page_area.height -= (border->top + border->bottom); + text = get_selected_text (view); - if (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) - return; + gtk_selection_data_set_text (selection_data, text, strlen (text)); - current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page); - if (current_pixbuf == NULL) - scaled_image = NULL; - else if (width == gdk_pixbuf_get_width (current_pixbuf) && - height == gdk_pixbuf_get_height (current_pixbuf)) - scaled_image = g_object_ref (current_pixbuf); - else - scaled_image = gdk_pixbuf_scale_simple (current_pixbuf, - width, height, - GDK_INTERP_NEAREST); - if (scaled_image) { - gdk_draw_pixbuf (view->bin_window, - GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL], - scaled_image, - overlap.x - real_page_area.x, - overlap.y - real_page_area.y, - overlap.x, overlap.y, - overlap.width, overlap.height, - GDK_RGB_DITHER_NORMAL, - 0, 0); - g_object_unref (scaled_image); + g_free (text); } } -static void -ev_view_bin_expose (EvView *view, - GdkEventExpose *event) +static gboolean +selection_update_idle_cb (EvView *view) { - GdkRectangle rubberband; - GList *l; - int i; - - if (view->document == NULL) - return; - - for (i = view->start_page; i <= view->end_page; i++) { - GdkRectangle page_area; - GtkBorder border; + compute_selections (view, &view->selection_info.start, &view->motion); + view->selection_update_id = 0; + return FALSE; +} - if (! get_page_extents (view, i, &page_area, &border)) - continue; +static gboolean +selection_scroll_timeout_cb (EvView *view) +{ + gint x, y, shift = 0; + GtkWidget *widget = GTK_WIDGET (view); + + gtk_widget_get_pointer (widget, &x, &y); - draw_one_page (view, i, &page_area, &border, &(event->area)); + if (y > widget->allocation.height) { + shift = (y - widget->allocation.height) / 2; + } else if (y < 0) { + shift = y / 2; + } - if (EV_IS_DOCUMENT_FIND (view->document)) { - highlight_find_results (view, i); - } + if (shift) + gtk_adjustment_set_value (view->vadjustment, + CLAMP (view->vadjustment->value + shift, + view->vadjustment->lower, + view->vadjustment->upper - + view->vadjustment->page_size)); + + if (x > widget->allocation.width) { + shift = (x - widget->allocation.width) / 2; + } else if (x < 0) { + shift = x / 2; } - for (l = view->selections; l != NULL; l = l->next) { - EvViewSelection *selection = (EvViewSelection *)l->data; + if (shift) + gtk_adjustment_set_value (view->hadjustment, + CLAMP (view->hadjustment->value + shift, + view->hadjustment->lower, + view->hadjustment->upper - + view->hadjustment->page_size)); - doc_rect_to_view_rect (view, selection->page, - &selection->rect, &rubberband); - if (rubberband.width > 0 && rubberband.height > 0) { - draw_rubberband (GTK_WIDGET (view), view->bin_window, - &rubberband, 0x40); - } - } + return TRUE; } static gboolean -ev_view_expose_event (GtkWidget *widget, - GdkEventExpose *event) +ev_view_motion_notify_event (GtkWidget *widget, + GdkEventMotion *event) { EvView *view = EV_VIEW (widget); + gint x, y; - if (event->window == view->bin_window) - ev_view_bin_expose (view, event); - else - return GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event (widget, event); - - return FALSE; -} + if (!view->document) + return FALSE; + + if (event->is_hint || event->window != widget->window) { + gtk_widget_get_pointer (widget, &x, &y); + } else { + x = event->x; + y = event->y; + } -void -ev_view_select_all (EvView *view) -{ - int n_pages, i; + if (view->selection_info.in_drag) { + if (gtk_drag_check_threshold (widget, + view->selection_info.start.x, + view->selection_info.start.y, + x, y)) { + GdkDragContext *context; + GtkTargetList *target_list = gtk_target_list_new (NULL, 0); - clear_selection (view); + gtk_target_list_add_text_targets (target_list, 0); - n_pages = ev_page_cache_get_n_pages (view->page_cache); - for (i = 0; i < n_pages; i++) { - int width, height; - EvViewSelection *selection; + context = gtk_drag_begin (widget, target_list, + GDK_ACTION_COPY, + 1, (GdkEvent *)event); - ev_page_cache_get_size (view->page_cache, - i, 1.0, &width, &height); + view->selection_info.in_drag = FALSE; - selection = g_new0 (EvViewSelection, 1); - selection->page = i; - selection->rect.x1 = selection->rect.y1 = 0; - selection->rect.x2 = width; - selection->rect.y2 = height; + gtk_target_list_unref (target_list); - view->selections = g_list_append (view->selections, selection); + return TRUE; + } } + + /* For the Evince 0.4.x release, we limit selection to un-rotated + * documents only. + */ + if (view->pressed_button == 1 && view->rotation == 0) { + + /* Schedule timeout to scroll during selection and additionally + * scroll once to allow arbitrary speed. */ + if (!view->selection_scroll_id) + view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view); + else + selection_scroll_timeout_cb (view); + + view->selection_info.in_selection = TRUE; + view->motion.x = x + view->scroll_x; + view->motion.y = y + view->scroll_y; + + /* Queue an idle to handle the motion. We do this because + * handling any selection events in the motion could be slower + * than new motion events reach us. We always put it in the + * idle to make sure we catch up and don't visibly lag the + * mouse. */ + if (!view->selection_update_id) + view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view); - gtk_widget_queue_draw (GTK_WIDGET (view)); -} + return TRUE; + } else if (view->pressed_button == 2) { + if (!view->drag_info.in_drag) { + gboolean start; -static char * -get_selected_text (EvView *ev_view) -{ - GString *text; - GList *l; + start = gtk_drag_check_threshold (widget, + view->drag_info.start.x, + view->drag_info.start.y, + event->x_root, + event->y_root); + view->drag_info.in_drag = start; + } - text = g_string_new (NULL); + if (view->drag_info.in_drag) { + int dx, dy; + gdouble dhadj_value, dvadj_value; - ev_document_doc_mutex_lock (); + dx = event->x_root - view->drag_info.start.x; + dy = event->y_root - view->drag_info.start.y; - for (l = ev_view->selections; l != NULL; l = l->next) { - EvViewSelection *selection = (EvViewSelection *)l->data; - char *tmp; + dhadj_value = view->hadjustment->page_size * + (gdouble)dx / widget->allocation.width; + dvadj_value = view->vadjustment->page_size * + (gdouble)dy / widget->allocation.height; - tmp = ev_document_get_text (ev_view->document, - selection->page, - &selection->rect); - g_string_append (text, tmp); - g_free (tmp); - } + /* clamp scrolling to visible area */ + gtk_adjustment_set_value (view->hadjustment, + MIN(view->drag_info.hadj - dhadj_value, + view->hadjustment->upper - + view->hadjustment->page_size)); + gtk_adjustment_set_value (view->vadjustment, + MIN(view->drag_info.vadj - dvadj_value, + view->vadjustment->upper - + view->vadjustment->page_size)); - ev_document_doc_mutex_unlock (); + return TRUE; + } + /* For the Evince 0.4.x release, we limit links to un-rotated documents + * only. + */ + } else if (view->pressed_button <= 0 && + view->rotation == 0) { + handle_link_over_xy (view, x, y); + return TRUE; + } - return g_string_free (text, FALSE); + return FALSE; } -void -ev_view_copy (EvView *ev_view) +static gboolean +ev_view_button_release_event (GtkWidget *widget, + GdkEventButton *event) { - GtkClipboard *clipboard; - char *text; + EvView *view = EV_VIEW (widget); + EvLink *link; - if (!ev_document_can_get_text (ev_view->document)) { - return; + if (view->pressed_button == 2) { + ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); } - text = get_selected_text (ev_view); - clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), - GDK_SELECTION_CLIPBOARD); - gtk_clipboard_set_text (clipboard, text, -1); - g_free (text); -} + if (view->document) { + link = ev_view_get_link_at_location (view, event->x, event->y); + } else { + link = NULL; + } -static void -ev_view_primary_get_cb (GtkClipboard *clipboard, - GtkSelectionData *selection_data, - guint info, - gpointer data) -{ - EvView *ev_view = EV_VIEW (data); - char *text; + view->pressed_button = -1; + view->drag_info.in_drag = FALSE; - if (!ev_document_can_get_text (ev_view->document)) { - return; + if (view->selection_scroll_id) { + g_source_remove (view->selection_scroll_id); + view->selection_scroll_id = 0; + } + if (view->selection_update_id) { + g_source_remove (view->selection_update_id); + view->selection_update_id = 0; } - text = get_selected_text (ev_view); - gtk_selection_data_set_text (selection_data, text, -1); - g_free (text); + if (view->selection_info.selections) { + ev_view_update_primary_selection (view); + + if (view->selection_info.in_drag) { + clear_selection (view); + gtk_widget_queue_draw (widget); + } + + view->selection_info.in_drag = FALSE; + } else if (link) { + ev_view_goto_link (view, link); + } else if (view->presentation) { + switch (event->button) { + case 1: + ev_view_next_page (view); + return TRUE; + case 3: + ev_view_previous_page (view); + return TRUE; + } + } + + return FALSE; } -static void -ev_view_primary_clear_cb (GtkClipboard *clipboard, - gpointer data) +static gint +ev_view_focus_in (GtkWidget *widget, + GdkEventFocus *event) { - EvView *view = EV_VIEW (data); + if (EV_VIEW (widget)->pixbuf_cache) + ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); + gtk_widget_queue_draw (widget); - clear_selection (view); + return FALSE; } -static void -ev_view_update_primary_selection (EvView *ev_view) +static gint +ev_view_focus_out (GtkWidget *widget, + GdkEventFocus *event) { - GtkClipboard *clipboard; + if (EV_VIEW (widget)->pixbuf_cache) + ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); + gtk_widget_queue_draw (widget); - clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), - GDK_SELECTION_PRIMARY); + return FALSE; +} - if (ev_view->selections) { - if (!gtk_clipboard_set_with_owner (clipboard, - targets, - G_N_ELEMENTS (targets), - ev_view_primary_get_cb, - ev_view_primary_clear_cb, - G_OBJECT (ev_view))) - ev_view_primary_clear_cb (clipboard, ev_view); - } else { - if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view)) - gtk_clipboard_clear (clipboard); +static gboolean +ev_view_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event) +{ + EvView *view = EV_VIEW (widget); + + ev_view_set_status (view, NULL); + + if (view->cursor == EV_VIEW_CURSOR_LINK || + view->cursor == EV_VIEW_CURSOR_IBEAM) + ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); + + if (view->link_tooltip) { + view->hovered_link = NULL; + ev_tooltip_deactivate (EV_TOOLTIP (view->link_tooltip)); } + + return FALSE; } -static GdkCursor * -ev_view_create_invisible_cursor(void) +static gboolean +ev_view_enter_notify_event (GtkWidget *widget, GdkEventCrossing *event) { - GdkBitmap *empty; - GdkColor black = { 0, 0, 0, 0 }; - static char bits[] = { 0x00 }; - - empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1); + EvView *view = EV_VIEW (widget); - return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0); + handle_link_over_xy (view, event->x, event->y); + + return FALSE; } static void -ev_view_set_cursor (EvView *view, EvViewCursor new_cursor) +ev_view_style_set (GtkWidget *widget, + GtkStyle *old_style) { - GdkCursor *cursor = NULL; - GdkDisplay *display; - GtkWidget *widget; - - if (view->cursor == new_cursor) { - return; - } + if (EV_VIEW (widget)->pixbuf_cache) + ev_pixbuf_cache_style_changed (EV_VIEW (widget)->pixbuf_cache); - widget = gtk_widget_get_toplevel (GTK_WIDGET (view)); - display = gtk_widget_get_display (widget); - view->cursor = new_cursor; + GTK_WIDGET_CLASS (ev_view_parent_class)->style_set (widget, old_style); +} - switch (new_cursor) { - case EV_VIEW_CURSOR_NORMAL: - gdk_window_set_cursor (widget->window, NULL); - break; - case EV_VIEW_CURSOR_LINK: - cursor = gdk_cursor_new_for_display (display, GDK_HAND2); - break; - case EV_VIEW_CURSOR_WAIT: - cursor = gdk_cursor_new_for_display (display, GDK_WATCH); - break; - case EV_VIEW_CURSOR_HIDDEN: - cursor = ev_view_create_invisible_cursor (); - break; - case EV_VIEW_CURSOR_DRAG: - cursor = gdk_cursor_new_for_display (display, GDK_FLEUR); - break; - } +/*** Drawing ***/ - if (cursor) { - gdk_window_set_cursor (widget->window, cursor); - gdk_cursor_unref (cursor); - gdk_flush(); - } +static guint32 +ev_gdk_color_to_rgb (const GdkColor *color) +{ + guint32 result; + result = (0xff0000 | (color->red & 0xff00)); + result <<= 8; + result |= ((color->green & 0xff00) | (color->blue >> 8)); + return result; } -static gboolean -ev_view_button_press_event (GtkWidget *widget, - GdkEventButton *event) +static void +draw_rubberband (GtkWidget *widget, GdkWindow *window, + const GdkRectangle *rect, guchar alpha) { - EvView *view = EV_VIEW (widget); - - if (!GTK_WIDGET_HAS_FOCUS (widget)) { - gtk_widget_grab_focus (widget); - } + GdkGC *gc; + GdkPixbuf *pixbuf; + GdkColor *fill_color_gdk; + guint fill_color; - view->pressed_button = event->button; + fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]); + fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha; - switch (event->button) { - case 1: - if (view->selections) { - clear_selection (view); - gtk_widget_queue_draw (widget); - } + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, + rect->width, rect->height); + gdk_pixbuf_fill (pixbuf, fill_color); - view->selection_start.x = event->x; - view->selection_start.y = event->y; - return TRUE; - case 2: - /* use root coordinates as reference point because - * scrolling changes window relative coordinates */ - view->drag_info.start.x = event->x_root; - view->drag_info.start.y = event->y_root; - view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment); - view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment); + gdk_draw_pixbuf (window, NULL, pixbuf, + 0, 0, + rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y, + rect->width, rect->height, + GDK_RGB_DITHER_NONE, + 0, 0); - ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG); + g_object_unref (pixbuf); - return TRUE; - } + gc = gdk_gc_new (window); + gdk_gc_set_rgb_fg_color (gc, fill_color_gdk); + gdk_draw_rectangle (window, gc, FALSE, + rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y, + rect->width - 1, + rect->height - 1); + g_object_unref (gc); - return FALSE; + gdk_color_free (fill_color_gdk); } -static char * -status_message_from_link (EvView *view, EvLink *link) + +static void +highlight_find_results (EvView *view, int page) { - EvLinkType type; - char *msg = NULL; - char *page_label; + EvDocumentFind *find; + int i, results = 0; - type = ev_link_get_link_type (link); + g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document)); - switch (type) { - case EV_LINK_TYPE_TITLE: - if (ev_link_get_title (link)) - msg = g_strdup (ev_link_get_title (link)); - break; - case EV_LINK_TYPE_PAGE: - page_label = ev_page_cache_get_page_label (view->page_cache, ev_link_get_page (link)); - msg = g_strdup_printf (_("Go to page %s"), page_label); - g_free (page_label); - break; - case EV_LINK_TYPE_EXTERNAL_URI: - msg = g_strdup (ev_link_get_uri (link)); - break; - default: - break; - } + find = EV_DOCUMENT_FIND (view->document); - return msg; -} + results = ev_document_find_get_n_results (find, page); -static void -ev_view_set_status (EvView *view, const char *message) -{ - g_return_if_fail (EV_IS_VIEW (view)); + for (i = 0; i < results; i++) { + EvRectangle rectangle; + GdkRectangle view_rectangle; + guchar alpha; - if (message != view->status) { - g_free (view->status); - view->status = g_strdup (message); - g_object_notify (G_OBJECT (view), "status"); - } + if (i == view->find_result && page == view->find_page) { + alpha = 0x90; + } else { + alpha = 0x20; + } + + ev_document_find_get_result (find, page, i, &rectangle); + doc_rect_to_view_rect (view, page, &rectangle, &view_rectangle); + draw_rubberband (GTK_WIDGET (view), GTK_WIDGET(view)->window, + &view_rectangle, alpha); + } } static void -ev_view_set_find_status (EvView *view, const char *message) +draw_loading_text (EvView *view, + GdkRectangle *page_area, + GdkRectangle *expose_area) { - g_return_if_fail (EV_IS_VIEW (view)); + PangoLayout *layout; + PangoFontDescription *font_desc; + PangoRectangle logical_rect; + double real_scale; + int target_width; - g_free (view->find_status); - view->find_status = g_strdup (message); - g_object_notify (G_OBJECT (view), "find-status"); -} + const char *loading_text = _("Loading..."); -static void -find_page_at_location (EvView *view, - gdouble x, - gdouble y, - gint *page, - gint *x_offset, - gint *y_offset) -{ - int i; + layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), loading_text); - if (view->document == NULL) - return; + font_desc = pango_font_description_new (); - g_assert (page); - g_assert (x_offset); - g_assert (y_offset); - for (i = view->start_page; i <= view->end_page; i++) { - GdkRectangle page_area; - GtkBorder border; + /* We set the font to be 10 points, get the size, and scale appropriately */ + pango_font_description_set_size (font_desc, 10 * PANGO_SCALE); + pango_layout_set_font_description (layout, font_desc); + pango_layout_get_pixel_extents (layout, NULL, &logical_rect); - if (! get_page_extents (view, i, &page_area, &border)) - continue; + /* Make sure we fit the middle of the page */ + target_width = MAX (page_area->width / 2, 1); + real_scale = ((double)target_width / (double) logical_rect.width) * (PANGO_SCALE * 10); + pango_font_description_set_size (font_desc, (int)real_scale); + pango_layout_set_font_description (layout, font_desc); + pango_layout_get_pixel_extents (layout, NULL, &logical_rect); - if ((x >= page_area.x + border.left) && - (x < page_area.x + page_area.width - border.right) && - (y >= page_area.y + border.top) && - (y < page_area.y + page_area.height - border.bottom)) { - *page = i; - *x_offset = x - (page_area.x + border.left); - *y_offset = y - (page_area.y + border.top); - return; - } - } + gtk_paint_layout (GTK_WIDGET (view)->style, + GTK_WIDGET (view)->window, + GTK_WIDGET_STATE (view), + FALSE, + page_area, + GTK_WIDGET (view), + NULL, + page_area->x + (target_width/2), + page_area->y + (page_area->height - logical_rect.height) / 2, + layout); - *page = -1; + pango_font_description_free (font_desc); + g_object_unref (layout); } -static EvLink * -get_link_at_location (EvView *view, - gdouble x, - gdouble y) +static void +draw_one_page (EvView *view, + gint page, + GdkRectangle *page_area, + GtkBorder *border, + GdkRectangle *expose_area) { - gint page = -1; - gint x_offset = 0, y_offset = 0; - GList *link_mapping; + gint width, height; + GdkPixbuf *current_pixbuf; + GdkRectangle overlap; + GdkRectangle real_page_area; + EvViewSelection *selection; - find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + g_assert (view->document); + if (! gdk_rectangle_intersect (page_area, expose_area, &overlap)) + return; - if (page == -1) - return NULL; + selection = find_selection_for_page (view, page); + ev_page_cache_get_size (view->page_cache, + page, view->rotation, + view->scale, + &width, &height); + /* Render the document itself */ + real_page_area = *page_area; - link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page); + real_page_area.x += border->left; + real_page_area.y += border->top; + real_page_area.width -= (border->left + border->right); + real_page_area.height -= (border->top + border->bottom); - if (link_mapping) - return ev_link_mapping_find (link_mapping, x_offset / view->scale, y_offset / view->scale); - else - return NULL; + ev_document_misc_paint_one_page (GTK_WIDGET(view)->window, + GTK_WIDGET (view), + page_area, border); + + if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) { + GdkPixbuf *selection_pixbuf = NULL; + GdkPixbuf *scaled_image; + GdkPixbuf *scaled_selection; + + current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page); + + /* Get the selection pixbuf iff we have something to draw */ + if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection) + selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache, + page, + view->scale, + NULL); + + if (current_pixbuf == NULL) + scaled_image = NULL; + else if (width == gdk_pixbuf_get_width (current_pixbuf) && + height == gdk_pixbuf_get_height (current_pixbuf)) + scaled_image = g_object_ref (current_pixbuf); + else + /* FIXME: We don't want to scale the whole area, just the right + * area of it */ + scaled_image = gdk_pixbuf_scale_simple (current_pixbuf, + width, height, + GDK_INTERP_NEAREST); + + if (selection_pixbuf == NULL) + scaled_selection = NULL; + else if (width == gdk_pixbuf_get_width (selection_pixbuf) && + height == gdk_pixbuf_get_height (selection_pixbuf)) + scaled_selection = g_object_ref (selection_pixbuf); + else + /* FIXME: We don't want to scale the whole area, just the right + * area of it */ + scaled_selection = gdk_pixbuf_scale_simple (selection_pixbuf, + width, height, + GDK_INTERP_NEAREST); + + if (scaled_image) { + gdk_draw_pixbuf (GTK_WIDGET(view)->window, + GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL], + scaled_image, + overlap.x - real_page_area.x, + overlap.y - real_page_area.y, + overlap.x, overlap.y, + overlap.width, overlap.height, + GDK_RGB_DITHER_NORMAL, + 0, 0); + g_object_unref (scaled_image); + } else { + draw_loading_text (view, + &real_page_area, + expose_area); + } + + if (scaled_selection) { + gdk_draw_pixbuf (GTK_WIDGET(view)->window, + GTK_WIDGET (view)->style->fg_gc[GTK_STATE_NORMAL], + scaled_selection, + overlap.x - real_page_area.x, + overlap.y - real_page_area.y, + overlap.x, overlap.y, + overlap.width, overlap.height, + GDK_RGB_DITHER_NORMAL, + 0, 0); + g_object_unref (scaled_selection); + } + } } +/*** GObject functions ***/ -static gboolean -ev_view_motion_notify_event (GtkWidget *widget, - GdkEventMotion *event) +static void +ev_view_finalize (GObject *object) { - EvView *view = EV_VIEW (widget); + EvView *view = EV_VIEW (object); - if (view->pressed_button == 1) { - GdkRectangle selection; + LOG ("Finalize"); - selection.x = MIN (view->selection_start.x, event->x); - selection.y = MIN (view->selection_start.y, event->y); - selection.width = ABS (view->selection_start.x - event->x) + 1; - selection.height = ABS (view->selection_start.y - event->y) + 1; + g_free (view->status); + g_free (view->find_status); - compute_selections (view, &selection); + clear_selection (view); - gtk_widget_queue_draw (widget); + G_OBJECT_CLASS (ev_view_parent_class)->finalize (object); +} - return TRUE; - } else if (view->pressed_button == 2) { - if (!view->drag_info.dragging) { - gboolean start; - - start = gtk_drag_check_threshold (widget, - view->drag_info.start.x, - view->drag_info.start.y, - event->x_root, - event->y_root); - view->drag_info.dragging = start; - } - - if (view->drag_info.dragging) { - int dx, dy; - gdouble dhadj_value, dvadj_value; - - dx = event->x_root - view->drag_info.start.x; - dy = event->y_root - view->drag_info.start.y; - - dhadj_value = view->hadjustment->page_size * - (gdouble)dx / widget->allocation.width; - dvadj_value = view->vadjustment->page_size * - (gdouble)dy / widget->allocation.height; - - /* clamp scrolling to visible area */ - gtk_adjustment_set_value (view->hadjustment, - MIN(view->drag_info.hadj - dhadj_value, - view->hadjustment->upper - - view->hadjustment->page_size)); - gtk_adjustment_set_value (view->vadjustment, - MIN(view->drag_info.vadj - dvadj_value, - view->vadjustment->upper - - view->vadjustment->page_size)); - - return TRUE; - } - } else if (view->pressed_button <= 0 && view->document) { - EvLink *link; - - link = get_link_at_location (view, event->x, event->y); - if (link) { - char *msg; - - msg = status_message_from_link (view, link); - ev_view_set_status (view, msg); - ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); - g_free (msg); - } else { - ev_view_set_status (view, NULL); - if (view->cursor == EV_VIEW_CURSOR_LINK) { - ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); - } - } - return TRUE; - } - - return FALSE; -} - -/* FIXME: standardize this sometime */ static void -go_to_link (EvView *view, EvLink *link) +ev_view_destroy (GtkObject *object) { - EvLinkType type; - const char *uri; - int page; - - type = ev_link_get_link_type (link); + EvView *view = EV_VIEW (object); - switch (type) { - case EV_LINK_TYPE_TITLE: - break; - case EV_LINK_TYPE_PAGE: - page = ev_link_get_page (link); - ev_page_cache_set_current_page (view->page_cache, page); - break; - case EV_LINK_TYPE_EXTERNAL_URI: - uri = ev_link_get_uri (link); - gnome_vfs_url_show (uri); - break; + if (view->document) { + g_object_unref (view->document); + view->document = NULL; } -} - -static gboolean -ev_view_button_release_event (GtkWidget *widget, - GdkEventButton *event) -{ - EvView *view = EV_VIEW (widget); - - if (view->pressed_button == 2) { - ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); + if (view->pixbuf_cache) { + g_object_unref (view->pixbuf_cache); + view->pixbuf_cache = NULL; } - view->pressed_button = -1; - view->drag_info.dragging = FALSE; - - if (view->selections) { - ev_view_update_primary_selection (view); - } else if (view->document) { - EvLink *link; - - link = get_link_at_location (view, event->x, event->y); - if (link) { - go_to_link (view, link); - } + if (view->link_tooltip) { + gtk_widget_destroy (view->link_tooltip); } - return FALSE; -} - -static void -on_adjustment_value_changed (GtkAdjustment *adjustment, - EvView *view) -{ - view_update_adjustments (view); -} - -static void -set_scroll_adjustment (EvView *view, - GtkOrientation orientation, - GtkAdjustment *adjustment) -{ - GtkAdjustment **to_set; - - if (orientation == GTK_ORIENTATION_HORIZONTAL) - to_set = &view->hadjustment; - else - to_set = &view->vadjustment; - - if (*to_set != adjustment) { - if (*to_set) { - g_signal_handlers_disconnect_by_func (*to_set, - (gpointer) on_adjustment_value_changed, - view); - g_object_unref (*to_set); - } - - *to_set = adjustment; - view_set_adjustment_values (view, orientation); - - if (*to_set) { - g_object_ref (*to_set); - g_signal_connect (*to_set, "value_changed", - G_CALLBACK (on_adjustment_value_changed), view); - } + if (view->selection_scroll_id) { + g_source_remove (view->selection_scroll_id); + view->selection_scroll_id = 0; } -} - -static void -ev_view_set_scroll_adjustments (EvView *view, - GtkAdjustment *hadjustment, - GtkAdjustment *vadjustment) -{ - set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment); - set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment); - - view_update_adjustments (view); -} - -static void -add_scroll_binding_keypad (GtkBindingSet *binding_set, - guint keyval, - GtkScrollType scroll, - gboolean horizontal) -{ - guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; - - gtk_binding_entry_add_signal (binding_set, keyval, 0, - "scroll_view", 2, - GTK_TYPE_SCROLL_TYPE, scroll, - G_TYPE_BOOLEAN, horizontal); - gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0, - "scroll_view", 2, - GTK_TYPE_SCROLL_TYPE, scroll, - G_TYPE_BOOLEAN, horizontal); -} - -static void -add_scroll_binding_shifted (GtkBindingSet *binding_set, - guint keyval, - GtkScrollType scroll_normal, - GtkScrollType scroll_shifted, - gboolean horizontal) -{ - gtk_binding_entry_add_signal (binding_set, keyval, 0, - "scroll_view", 2, - GTK_TYPE_SCROLL_TYPE, scroll_normal, - G_TYPE_BOOLEAN, horizontal); - gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK, - "scroll_view", 2, - GTK_TYPE_SCROLL_TYPE, scroll_shifted, - G_TYPE_BOOLEAN, horizontal); -} - -static void -ev_view_jump (EvView *view, - GtkScrollType scroll) -{ - GtkAdjustment *adjustment; - double value, increment; - gboolean first_page = FALSE; - gboolean last_page = FALSE; - - /* Assign values for increment and vertical adjustment */ - adjustment = view->vadjustment; - increment = adjustment->page_size * 0.75; - value = adjustment->value; - - /* Assign boolean for first and last page */ - if (view->current_page == 0) - first_page = TRUE; - if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1) - last_page = TRUE; - switch (scroll) { - case EV_SCROLL_PAGE_BACKWARD: - /* Do not jump backwards if at the first page */ - if (value == (adjustment->lower) && first_page) { - /* Do nothing */ - /* At the top of a page, assign the upper bound limit of previous page */ - } else if (value == (adjustment->lower)) { - value = adjustment->upper - adjustment->page_size; - ev_page_cache_set_current_page (view->page_cache, view->current_page - 1); - /* Jump to the top */ - } else { - value = MAX (value - increment, adjustment->lower); - } - break; - case EV_SCROLL_PAGE_FORWARD: - /* Do not jump forward if at the last page */ - if (value == (adjustment->upper - adjustment->page_size) && last_page) { - /* Do nothing */ - /* At the bottom of a page, assign the lower bound limit of next page */ - } else if (value == (adjustment->upper - adjustment->page_size)) { - value = 0; - ev_page_cache_set_current_page (view->page_cache, view->current_page + 1); - /* Jump to the bottom */ - } else { - value = MIN (value + increment, adjustment->upper - adjustment->page_size); - } - break; - default: - break; + if (view->selection_update_id) { + g_source_remove (view->selection_update_id); + view->selection_update_id = 0; } - gtk_adjustment_set_value (adjustment, value); -} - -static void -ev_view_scroll_view (EvView *view, - GtkScrollType scroll, - gboolean horizontal) -{ - if (scroll == GTK_SCROLL_PAGE_BACKWARD) { - ev_page_cache_prev_page (view->page_cache); - } else if (scroll == GTK_SCROLL_PAGE_FORWARD) { - ev_page_cache_next_page (view->page_cache); - } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) { - ev_view_jump (view, scroll); - } else { - GtkAdjustment *adjustment; - double value; - - if (horizontal) { - adjustment = view->hadjustment; - } else { - adjustment = view->vadjustment; - } - - value = adjustment->value; - - switch (scroll) { - case GTK_SCROLL_STEP_BACKWARD: - value -= adjustment->step_increment; - break; - case GTK_SCROLL_STEP_FORWARD: - value += adjustment->step_increment; - break; - default: - break; - } - - value = CLAMP (value, adjustment->lower, - adjustment->upper - adjustment->page_size); + ev_view_set_scroll_adjustments (view, NULL, NULL); - gtk_adjustment_set_value (adjustment, value); - } + GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object); } static void @@ -1690,11 +2312,48 @@ ev_view_set_property (GObject *object, case PROP_SIZING_MODE: ev_view_set_sizing_mode (view, g_value_get_enum (value)); break; + case PROP_ZOOM: + ev_view_set_zoom (view, g_value_get_double (value), FALSE); + break; + case PROP_ROTATION: + ev_view_set_rotation (view, g_value_get_int (value)); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } } +static AtkObject * +ev_view_get_accessible (GtkWidget *widget) +{ + static gboolean first_time = TRUE; + + if (first_time) { + AtkObjectFactory *factory; + AtkRegistry *registry; + GType derived_type; + GType derived_atk_type; + + /* + * Figure out whether accessibility is enabled by looking at the + * type of the accessible object which would be created for + * the parent type of EvView. + */ + derived_type = g_type_parent (EV_TYPE_VIEW); + + registry = atk_get_default_registry (); + factory = atk_registry_get_factory (registry, + derived_type); + derived_atk_type = atk_object_factory_get_accessible_type (factory); + if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE)) + atk_registry_set_factory_type (registry, + EV_TYPE_VIEW, + ev_view_accessible_factory_get_type ()); + first_time = FALSE; + } + return GTK_WIDGET_CLASS (ev_view_parent_class)->get_accessible (widget); +} + static void ev_view_get_property (GObject *object, guint prop_id, @@ -1726,6 +2385,16 @@ ev_view_get_property (GObject *object, case PROP_SIZING_MODE: g_value_set_enum (value, view->sizing_mode); break; + case PROP_ZOOM: + g_value_set_double (value, view->scale); + break; + case PROP_ROTATION: + g_value_set_int (value, view->rotation); + break; + case PROP_HAS_SELECTION: + g_value_set_boolean (value, + view->selection_info.selections != NULL); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } @@ -1747,35 +2416,67 @@ ev_view_class_init (EvViewClass *class) widget_class->button_press_event = ev_view_button_press_event; widget_class->motion_notify_event = ev_view_motion_notify_event; widget_class->button_release_event = ev_view_button_release_event; + widget_class->focus_in_event = ev_view_focus_in; + widget_class->focus_out_event = ev_view_focus_out; + widget_class->get_accessible = ev_view_get_accessible; widget_class->size_request = ev_view_size_request; widget_class->size_allocate = ev_view_size_allocate; widget_class->realize = ev_view_realize; - widget_class->unrealize = ev_view_unrealize; widget_class->scroll_event = ev_view_scroll_event; + widget_class->enter_notify_event = ev_view_enter_notify_event; + widget_class->leave_notify_event = ev_view_leave_notify_event; + widget_class->style_set = ev_view_style_set; + widget_class->drag_data_get = ev_view_drag_data_get; + widget_class->popup_menu = ev_view_popup_menu; gtk_object_class->destroy = ev_view_destroy; class->set_scroll_adjustments = ev_view_set_scroll_adjustments; - class->scroll_view = ev_view_scroll_view; - - widget_class->set_scroll_adjustments_signal = g_signal_new ("set-scroll-adjustments", - G_OBJECT_CLASS_TYPE (object_class), - G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, - G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments), - NULL, NULL, - ev_marshal_VOID__OBJECT_OBJECT, - G_TYPE_NONE, 2, - GTK_TYPE_ADJUSTMENT, - GTK_TYPE_ADJUSTMENT); - - g_signal_new ("scroll_view", - G_TYPE_FROM_CLASS (object_class), - G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, - G_STRUCT_OFFSET (EvViewClass, scroll_view), - NULL, NULL, - ev_marshal_VOID__ENUM_BOOLEAN, - G_TYPE_NONE, 2, - GTK_TYPE_SCROLL_TYPE, - G_TYPE_BOOLEAN); + class->binding_activated = ev_view_binding_activated; + + widget_class->set_scroll_adjustments_signal = + g_signal_new ("set-scroll-adjustments", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvViewClass, set_scroll_adjustments), + NULL, NULL, + ev_marshal_VOID__OBJECT_OBJECT, + G_TYPE_NONE, 2, + GTK_TYPE_ADJUSTMENT, + GTK_TYPE_ADJUSTMENT); + + signals[SIGNAL_BINDING_ACTIVATED] = g_signal_new ("binding_activated", + G_TYPE_FROM_CLASS (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvViewClass, binding_activated), + NULL, NULL, + ev_marshal_VOID__ENUM_BOOLEAN, + G_TYPE_NONE, 2, + GTK_TYPE_SCROLL_TYPE, + G_TYPE_BOOLEAN); + + signals[SIGNAL_ZOOM_INVALID] = g_signal_new ("zoom-invalid", + G_TYPE_FROM_CLASS (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvViewClass, zoom_invalid), + NULL, NULL, + ev_marshal_VOID__VOID, + G_TYPE_NONE, 0, G_TYPE_NONE); + signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link", + G_TYPE_FROM_CLASS (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvViewClass, external_link), + NULL, NULL, + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, + G_TYPE_OBJECT); + signals[SIGNAL_POPUP_MENU] = g_signal_new ("popup", + G_TYPE_FROM_CLASS (object_class), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (EvViewClass, popup_menu), + NULL, NULL, + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, + G_TYPE_OBJECT); g_object_class_install_property (object_class, PROP_STATUS, @@ -1832,18 +2533,42 @@ ev_view_class_init (EvViewClass *class) EV_SIZING_FIT_WIDTH, G_PARAM_READWRITE)); - binding_set = gtk_binding_set_by_class (class); - - add_scroll_binding_keypad (binding_set, GDK_Left, GTK_SCROLL_STEP_BACKWARD, TRUE); - add_scroll_binding_keypad (binding_set, GDK_Right, GTK_SCROLL_STEP_FORWARD, TRUE); - add_scroll_binding_keypad (binding_set, GDK_Up, GTK_SCROLL_STEP_BACKWARD, FALSE); - add_scroll_binding_keypad (binding_set, GDK_Down, GTK_SCROLL_STEP_FORWARD, FALSE); + g_object_class_install_property (object_class, + PROP_ZOOM, + g_param_spec_double ("zoom", + "Zoom factor", + "Zoom factor", + MIN_SCALE, + MAX_SCALE, + 1.0, + G_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_ROTATION, + g_param_spec_double ("rotation", + "Rotation", + "Rotation", + 0, + 360, + 0, + G_PARAM_READWRITE)); + g_object_class_install_property (object_class, + PROP_HAS_SELECTION, + g_param_spec_boolean ("has-selection", + "Has selection", + "The view has selections", + FALSE, + G_PARAM_READABLE)); - add_scroll_binding_keypad (binding_set, GDK_Page_Up, GTK_SCROLL_PAGE_BACKWARD, FALSE); - add_scroll_binding_keypad (binding_set, GDK_Page_Down, GTK_SCROLL_PAGE_FORWARD, FALSE); + binding_set = gtk_binding_set_by_class (class); - add_scroll_binding_shifted (binding_set, GDK_space, EV_SCROLL_PAGE_FORWARD, EV_SCROLL_PAGE_BACKWARD, FALSE); - add_scroll_binding_shifted (binding_set, GDK_BackSpace, EV_SCROLL_PAGE_BACKWARD, EV_SCROLL_PAGE_FORWARD, FALSE); + add_scroll_binding_keypad (binding_set, GDK_Left, 0, GTK_SCROLL_STEP_BACKWARD, TRUE); + add_scroll_binding_keypad (binding_set, GDK_Right, 0, GTK_SCROLL_STEP_FORWARD, TRUE); + add_scroll_binding_keypad (binding_set, GDK_Left, GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, TRUE); + add_scroll_binding_keypad (binding_set, GDK_Right, GDK_MOD1_MASK, GTK_SCROLL_STEP_UP, TRUE); + add_scroll_binding_keypad (binding_set, GDK_Up, 0, GTK_SCROLL_STEP_BACKWARD, FALSE); + add_scroll_binding_keypad (binding_set, GDK_Down, 0, GTK_SCROLL_STEP_FORWARD, FALSE); + add_scroll_binding_keypad (binding_set, GDK_Up, GDK_MOD1_MASK, GTK_SCROLL_STEP_DOWN, FALSE); + add_scroll_binding_keypad (binding_set, GDK_Down, GDK_MOD1_MASK, GTK_SCROLL_STEP_UP, FALSE); } static void @@ -1851,157 +2576,95 @@ ev_view_init (EvView *view) { GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS); - view->spacing = 10; + view->spacing = 5; view->scale = 1.0; view->current_page = 0; view->pressed_button = -1; view->cursor = EV_VIEW_CURSOR_NORMAL; - view->drag_info.dragging = FALSE; - + view->drag_info.in_drag = FALSE; + view->selection_info.selections = NULL; + view->selection_info.in_selection = FALSE; + view->selection_info.in_drag = FALSE; + view->selection_mode = EV_VIEW_SELECTION_TEXT; view->continuous = TRUE; view->dual_page = FALSE; view->presentation = FALSE; view->fullscreen = FALSE; view->sizing_mode = EV_SIZING_FIT_WIDTH; + view->pending_scroll = SCROLL_TO_KEEP_POSITION; } +/*** Callbacks ***/ + static void -update_find_status_message (EvView *view) +find_changed_cb (EvDocument *document, int page, EvView *view) { - char *message; + jump_to_find_page (view, EV_VIEW_FIND_NEXT); + jump_to_find_result (view); + update_find_status_message (view); - if (view->current_page == view->find_page) { - int results; - - results = ev_document_find_get_n_results - (EV_DOCUMENT_FIND (view->document), - view->current_page); - /* TRANS: Sometimes this could be better translated as - "%d hit(s) on this page". Therefore this string - contains plural cases. */ - message = g_strdup_printf (ngettext ("%d found on this page", - "%d found on this page", - results), - results); - } else { - double percent; - - ev_document_doc_mutex_lock (); - percent = ev_document_find_get_progress - (EV_DOCUMENT_FIND (view->document)); - ev_document_doc_mutex_unlock (); - if (percent >= (1.0 - 1e-10)) { - message = g_strdup (_("Not found")); - } else { - message = g_strdup_printf (_("%3d%% remaining to search"), - (int) ((1.0 - percent) * 100)); - } - - } -// ev_document_doc_mutex_unlock (); - - ev_view_set_find_status (view, message); -// g_free (message); -} - -#define MARGIN 5 + if (view->current_page == page) + gtk_widget_queue_draw (GTK_WIDGET (view)); +} static void -ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect) +job_finished_cb (EvPixbufCache *pixbuf_cache, + EvView *view) { - GtkWidget *widget = GTK_WIDGET (view); - GtkAdjustment *adjustment; - int value; - - adjustment = view->vadjustment; - - if (rect->y < adjustment->value) { - value = MAX (adjustment->lower, rect->y - MARGIN); - gtk_adjustment_set_value (view->vadjustment, value); - } else if (rect->y + rect->height > - adjustment->value + widget->allocation.height) { - value = MIN (adjustment->upper, rect->y + rect->height - - widget->allocation.height + MARGIN); - gtk_adjustment_set_value (view->vadjustment, value); - } - - adjustment = view->hadjustment; - - if (rect->x < adjustment->value) { - value = MAX (adjustment->lower, rect->x - MARGIN); - gtk_adjustment_set_value (view->hadjustment, value); - } else if (rect->x + rect->height > - adjustment->value + widget->allocation.width) { - value = MIN (adjustment->upper, rect->x + rect->width - - widget->allocation.width + MARGIN); - gtk_adjustment_set_value (view->hadjustment, value); - } + gtk_widget_queue_draw (GTK_WIDGET (view)); } static void -jump_to_find_result (EvView *view) +page_changed_cb (EvPageCache *page_cache, + int new_page, + EvView *view) { - EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); - EvRectangle rect; - GdkRectangle view_rect; - int n_results; - int page = view->find_page; - - ev_document_doc_mutex_lock (); - n_results = ev_document_find_get_n_results (find, page); - ev_document_doc_mutex_unlock (); + if (view->current_page != new_page) { - if (n_results > view->find_result) { - ev_document_doc_mutex_lock (); - ev_document_find_get_result - (find, page, view->find_result, &rect); - ev_document_doc_mutex_unlock (); + view->current_page = new_page; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; + gtk_widget_queue_resize (GTK_WIDGET (view)); - doc_rect_to_view_rect (view, page, &rect, &view_rect); - ensure_rectangle_is_visible (view, &view_rect); + if (EV_IS_DOCUMENT_FIND (view->document)) { + view->find_page = new_page; + view->find_result = 0; + update_find_status_message (view); + } } } -static void -jump_to_find_page (EvView *view) +static void on_adjustment_value_changed (GtkAdjustment *adjustment, + EvView *view) { - int n_pages, i; - - n_pages = ev_page_cache_get_n_pages (view->page_cache); + int dx = 0, dy = 0; - for (i = 0; i < n_pages; i++) { - int has_results; - int page; + if (! GTK_WIDGET_REALIZED (view)) + return; - page = i + view->find_page; - if (page >= n_pages) { - page = page - n_pages; - } + if (view->hadjustment) { + dx = view->scroll_x - (int) view->hadjustment->value; + view->scroll_x = (int) view->hadjustment->value; + } else { + view->scroll_x = 0; + } - has_results = ev_document_find_page_has_results - (EV_DOCUMENT_FIND (view->document), page); - if (has_results == -1) { - view->find_page = page; - break; - } else if (has_results == 1) { - ev_page_cache_set_current_page (view->page_cache, page); - jump_to_find_result (view); - break; - } + if (view->vadjustment) { + dy = view->scroll_y - (int) view->vadjustment->value; + view->scroll_y = (int) view->vadjustment->value; + } else { + view->scroll_y = 0; } -} -static void -find_changed_cb (EvDocument *document, int page, EvView *view) -{ - jump_to_find_page (view); - jump_to_find_result (view); - update_find_status_message (view); - if (view->current_page == page) + if (view->pending_resize) gtk_widget_queue_draw (GTK_WIDGET (view)); + else + gdk_window_scroll (GTK_WIDGET (view)->window, dx, dy); + + + if (view->document) + view_update_range_and_current_page (view); } -/*** Public API ***/ GtkWidget* ev_view_new (void) @@ -2014,67 +2677,33 @@ ev_view_new (void) } static void -job_finished_cb (EvPixbufCache *pixbuf_cache, - EvView *view) +setup_caches (EvView *view) { - gtk_widget_queue_draw (GTK_WIDGET (view)); + view->page_cache = ev_page_cache_get (view->document); + g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view); + view->pixbuf_cache = ev_pixbuf_cache_new (GTK_WIDGET (view), view->document); + g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view); } - static void -page_changed_cb (EvPageCache *page_cache, - int new_page, - EvView *view) +clear_caches (EvView *view) { - int old_page = view->current_page; - int old_width, old_height; - int new_width, new_height; - int max_height, n_rows; - - if (old_page == new_page) - return; - - ev_page_cache_get_size (page_cache, - old_page, - view->scale, - &old_width, &old_height); - - view->current_page = new_page; - - ev_page_cache_get_size (page_cache, - new_page, - view->scale, - &new_width, &new_height); - - compute_border (view, new_width, new_height, &(view->border)); - - if (new_width != old_width || new_height != old_height) - gtk_widget_queue_resize (GTK_WIDGET (view)); - else - gtk_widget_queue_draw (GTK_WIDGET (view)); - - if (view->continuous) { - - n_rows = view->dual_page ? new_page / 2 : new_page; - - get_bounding_box_size (view, NULL, &max_height); - - gtk_adjustment_clamp_page(view->vadjustment, - (max_height + view->spacing) * n_rows, - (max_height + view->spacing) * n_rows + - view->vadjustment->page_size); - } else { - gtk_adjustment_set_value (view->vadjustment, - view->vadjustment->lower); + if (view->pixbuf_cache) { + g_object_unref (view->pixbuf_cache); + view->pixbuf_cache = NULL; } - if (EV_IS_DOCUMENT_FIND (view->document)) { - view->find_page = new_page; - view->find_result = 0; - update_find_status_message (view); + if (view->page_cache) { + view->page_cache = NULL; } +} - view_update_range_and_current_page (view); +void +ev_view_set_loading (EvView *view, + gboolean loading) +{ + view->loading = loading; + gtk_widget_queue_draw (GTK_WIDGET (view)); } void @@ -2083,7 +2712,11 @@ ev_view_set_document (EvView *view, { g_return_if_fail (EV_IS_VIEW (view)); + view->loading = FALSE; + if (document != view->document) { + clear_caches (view); + if (view->document) { g_signal_handlers_disconnect_by_func (view->document, find_changed_cb, @@ -2105,16 +2738,16 @@ ev_view_set_document (EvView *view, G_CALLBACK (find_changed_cb), view); } - view->page_cache = ev_document_get_page_cache (view->document); - g_signal_connect (view->page_cache, "page-changed", G_CALLBACK (page_changed_cb), view); - view->pixbuf_cache = ev_pixbuf_cache_new (view->document); - g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view); + + setup_caches (view); } gtk_widget_queue_resize (GTK_WIDGET (view)); } } +/*** Zoom and sizing mode ***/ + #define EPSILON 0.0000001 void ev_view_set_zoom (EvView *view, @@ -2132,8 +2765,13 @@ ev_view_set_zoom (EvView *view, if (ABS (view->scale - scale) < EPSILON) return; + view->scale = scale; + view->pending_resize = TRUE; + gtk_widget_queue_resize (GTK_WIDGET (view)); + + g_object_notify (G_OBJECT (view), "zoom"); } double @@ -2142,6 +2780,14 @@ ev_view_get_zoom (EvView *view) return view->scale; } +gboolean +ev_view_get_continuous (EvView *view) +{ + g_return_val_if_fail (EV_IS_VIEW (view), FALSE); + + return view->continuous; +} + void ev_view_set_continuous (EvView *view, gboolean continuous) @@ -2152,12 +2798,21 @@ ev_view_set_continuous (EvView *view, if (view->continuous != continuous) { view->continuous = continuous; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; gtk_widget_queue_resize (GTK_WIDGET (view)); } g_object_notify (G_OBJECT (view), "continuous"); } +gboolean +ev_view_get_dual_page (EvView *view) +{ + g_return_val_if_fail (EV_IS_VIEW (view), FALSE); + + return view->dual_page; +} + void ev_view_set_dual_page (EvView *view, gboolean dual_page) @@ -2169,6 +2824,7 @@ ev_view_set_dual_page (EvView *view, if (view->dual_page == dual_page) return; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; view->dual_page = dual_page; /* FIXME: if we're keeping the pixbuf cache around, we should extend the * preload_cache_size to be 2 if dual_page is set. @@ -2186,11 +2842,12 @@ ev_view_set_fullscreen (EvView *view, fullscreen = fullscreen != FALSE; - if (view->fullscreen != fullscreen) { - view->fullscreen = fullscreen; - gtk_widget_queue_resize (GTK_WIDGET (view)); - } - + if (view->fullscreen == fullscreen) + return; + + view->fullscreen = fullscreen; + gtk_widget_queue_resize (GTK_WIDGET (view)); + g_object_notify (G_OBJECT (view), "fullscreen"); } @@ -2214,13 +2871,15 @@ ev_view_set_presentation (EvView *view, return; view->presentation = presentation; + view->pending_scroll = SCROLL_TO_PAGE_POSITION; gtk_widget_queue_resize (GTK_WIDGET (view)); + if (GTK_WIDGET_REALIZED (view)) { if (view->presentation) - gdk_window_set_background (view->bin_window, + gdk_window_set_background (GTK_WIDGET(view)->window, >K_WIDGET (view)->style->black); else - gdk_window_set_background (view->bin_window, + gdk_window_set_background (GTK_WIDGET(view)->window, >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]); } @@ -2247,7 +2906,7 @@ ev_view_set_sizing_mode (EvView *view, view->sizing_mode = sizing_mode; gtk_widget_queue_resize (GTK_WIDGET (view)); - + g_object_notify (G_OBJECT (view), "sizing-mode"); } @@ -2276,6 +2935,7 @@ ev_view_zoom_in (EvView *view) { g_return_if_fail (view->sizing_mode == EV_SIZING_FREE); + view->pending_scroll = SCROLL_TO_CENTER; ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE); } @@ -2284,10 +2944,55 @@ ev_view_zoom_out (EvView *view) { g_return_if_fail (view->sizing_mode == EV_SIZING_FREE); + view->pending_scroll = SCROLL_TO_CENTER; ev_view_set_zoom (view, ZOOM_OUT_FACTOR, TRUE); } +void +ev_view_rotate_right (EvView *view) +{ + int rotation = view->rotation + 90; + + if (rotation >= 360) { + rotation -= 360; + } + + ev_view_set_rotation (view, rotation); +} + +void +ev_view_rotate_left (EvView *view) +{ + int rotation = view->rotation - 90; + + if (rotation < 0) { + rotation += 360; + } + + ev_view_set_rotation (view, rotation); +} + +void +ev_view_set_rotation (EvView *view, int rotation) +{ + view->rotation = rotation; + + if (view->pixbuf_cache) { + ev_pixbuf_cache_clear (view->pixbuf_cache); + gtk_widget_queue_resize (GTK_WIDGET (view)); + } + + if (rotation != 0) + clear_selection (view); + + g_object_notify (G_OBJECT (view), "rotation"); +} +int +ev_view_get_rotation (EvView *view) +{ + return view->rotation; +} static double zoom_for_size_fit_width (int doc_width, @@ -2306,6 +3011,23 @@ zoom_for_size_fit_width (int doc_width, return scale; } +static double +zoom_for_size_fit_height (int doc_width, + int doc_height, + int target_width, + int target_height, + int vsb_height) +{ + double scale; + + scale = (double)target_height / doc_height; + + if (doc_width * scale > target_width) + scale = (double) (target_height - vsb_height) / doc_height; + + return scale; +} + static double zoom_for_size_best_fit (int doc_width, int doc_height, @@ -2339,6 +3061,7 @@ ev_view_zoom_for_size_presentation (EvView *view, ev_page_cache_get_size (view->page_cache, view->current_page, + view->rotation, 1.0, &doc_width, &doc_height); @@ -2357,12 +3080,14 @@ ev_view_zoom_for_size_continuous_and_dual_page (EvView *view, GtkBorder border; gdouble scale; - ev_page_cache_get_max_width_size (view->page_cache, - 1.0, - &doc_width, NULL); - ev_page_cache_get_max_height_size (view->page_cache, - 1.0, - NULL, &doc_height); + ev_page_cache_get_max_width (view->page_cache, + view->rotation, + 1.0, + &doc_width); + ev_page_cache_get_max_height (view->page_cache, + view->rotation, + 1.0, + &doc_height); compute_border (view, doc_width, doc_height, &border); doc_width = doc_width * 2; @@ -2393,12 +3118,14 @@ ev_view_zoom_for_size_continuous (EvView *view, GtkBorder border; gdouble scale; - ev_page_cache_get_max_width_size (view->page_cache, - 1.0, - &doc_width, NULL); - ev_page_cache_get_max_height_size (view->page_cache, - 1.0, - NULL, &doc_height); + ev_page_cache_get_max_width (view->page_cache, + view->rotation, + 1.0, + &doc_width); + ev_page_cache_get_max_height (view->page_cache, + view->rotation, + 1.0, + &doc_height); compute_border (view, doc_width, doc_height, &border); width -= (border.left + border.right + 2 * view->spacing); @@ -2434,6 +3161,7 @@ ev_view_zoom_for_size_dual_page (EvView *view, /* Find the largest of the two. */ ev_page_cache_get_size (view->page_cache, view->current_page, + view->rotation, 1.0, &doc_width, &doc_height); @@ -2441,6 +3169,7 @@ ev_view_zoom_for_size_dual_page (EvView *view, gint width_2, height_2; ev_page_cache_get_size (view->page_cache, other_page, + view->rotation, 1.0, &width_2, &height_2); if (width_2 > doc_width) @@ -2475,153 +3204,750 @@ ev_view_zoom_for_size_single_page (EvView *view, GtkBorder border; gdouble scale; - ev_page_cache_get_size (view->page_cache, - view->current_page, - 1.0, - &doc_width, - &doc_height); - /* Get an approximate border */ - compute_border (view, width, height, &border); + ev_page_cache_get_size (view->page_cache, + view->current_page, + view->rotation, + 1.0, + &doc_width, + &doc_height); + /* Get an approximate border */ + compute_border (view, width, height, &border); + + width -= (border.left + border.right + 2 * view->spacing); + height -= (border.top + border.bottom + 2 * view->spacing); + + if (view->sizing_mode == EV_SIZING_FIT_WIDTH) + scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width); + else if (view->sizing_mode == EV_SIZING_BEST_FIT) + scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height); + else + g_assert_not_reached (); + + ev_view_set_zoom (view, scale, FALSE); +} + +void +ev_view_set_zoom_for_size (EvView *view, + int width, + int height, + int vsb_width, + int hsb_height) +{ + g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH || + view->sizing_mode == EV_SIZING_BEST_FIT); + g_return_if_fail (width >= 0); + g_return_if_fail (height >= 0); + + if (view->document == NULL) + return; + + if (view->presentation) + ev_view_zoom_for_size_presentation (view, width, height); + else if (view->continuous && view->dual_page) + ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height); + else if (view->continuous) + ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height); + else if (view->dual_page) + ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height); + else + ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height); +} + +/*** Status text messages ***/ + +const char * +ev_view_get_status (EvView *view) +{ + g_return_val_if_fail (EV_IS_VIEW (view), NULL); + + return view->status; +} + +static void +ev_view_set_status (EvView *view, const char *message) +{ + g_return_if_fail (EV_IS_VIEW (view)); + + if (message != view->status) { + g_free (view->status); + view->status = g_strdup (message); + g_object_notify (G_OBJECT (view), "status"); + } +} + +static void +update_find_status_message (EvView *view) +{ + char *message; + + if (view->current_page == view->find_page) { + int results; + + results = ev_document_find_get_n_results + (EV_DOCUMENT_FIND (view->document), + view->current_page); + /* TRANS: Sometimes this could be better translated as + "%d hit(s) on this page". Therefore this string + contains plural cases. */ + message = g_strdup_printf (ngettext ("%d found on this page", + "%d found on this page", + results), + results); + } else { + double percent; + + percent = ev_document_find_get_progress + (EV_DOCUMENT_FIND (view->document)); + if (percent >= (1.0 - 1e-10)) { + message = g_strdup (_("Not found")); + } else { + message = g_strdup_printf (_("%3d%% remaining to search"), + (int) ((1.0 - percent) * 100)); + } + + } + ev_view_set_find_status (view, message); + g_free (message); +} + +const char * +ev_view_get_find_status (EvView *view) +{ + g_return_val_if_fail (EV_IS_VIEW (view), NULL); + + return view->find_status; +} + +static void +ev_view_set_find_status (EvView *view, const char *message) +{ + g_return_if_fail (EV_IS_VIEW (view)); + + g_free (view->find_status); + view->find_status = g_strdup (message); + g_object_notify (G_OBJECT (view), "find-status"); +} + +/*** Find ***/ + +static void +jump_to_find_result (EvView *view) +{ + EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); + EvRectangle rect; + GdkRectangle view_rect; + int n_results; + int page = view->find_page; + + n_results = ev_document_find_get_n_results (find, page); + + if (n_results > 0 && view->find_result < n_results) { + ev_document_find_get_result + (find, page, view->find_result, &rect); + + doc_rect_to_view_rect (view, page, &rect, &view_rect); + ensure_rectangle_is_visible (view, &view_rect); + } +} + +static void +jump_to_find_page (EvView *view, EvViewFindDirection direction) +{ + int n_pages, i; + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + + for (i = 0; i < n_pages; i++) { + int has_results; + int page; + + if (direction == EV_VIEW_FIND_NEXT) + page = view->find_page + i; + else + page = view->find_page - i; + + + if (page >= n_pages) { + page = page - n_pages; + } + if (page < 0) + page = page + n_pages; + + has_results = ev_document_find_page_has_results + (EV_DOCUMENT_FIND (view->document), page); + if (has_results == -1) { + view->find_page = page; + break; + } else if (has_results == 1) { + ev_page_cache_set_current_page (view->page_cache, page); + break; + } + } +} + +gboolean +ev_view_can_find_next (EvView *view) +{ + if (EV_IS_DOCUMENT_FIND (view->document)) { + EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); + int i, n_pages; + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + for (i = 0; i < n_pages; i++) { + if (ev_document_find_get_n_results (find, i) > 0) { + return TRUE; + } + } + } + + return FALSE; +} + +void +ev_view_find_next (EvView *view) +{ + int n_results, n_pages; + EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); + + n_results = ev_document_find_get_n_results (find, view->current_page); + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + + view->find_result++; + + if (view->find_result >= n_results) { + + view->find_result = 0; + view->find_page++; + if (view->find_page >= n_pages) { + view->find_page = 0; + } + + jump_to_find_page (view, EV_VIEW_FIND_NEXT); + jump_to_find_result (view); + } else { + jump_to_find_result (view); + gtk_widget_queue_draw (GTK_WIDGET (view)); + } +} + +void +ev_view_find_previous (EvView *view) +{ + int n_results, n_pages; + EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); + EvPageCache *page_cache; + + page_cache = ev_page_cache_get (view->document); + + n_results = ev_document_find_get_n_results (find, view->current_page); + + n_pages = ev_page_cache_get_n_pages (page_cache); + + view->find_result--; + + if (view->find_result < 0) { + + view->find_page--; + if (view->find_page < 0) { + view->find_page = n_pages - 1; + } + + jump_to_find_page (view, EV_VIEW_FIND_PREV); + view->find_result = ev_document_find_get_n_results (find, view->current_page) - 1; + jump_to_find_result (view); + } else { + jump_to_find_result (view); + gtk_widget_queue_draw (GTK_WIDGET (view)); + } +} + +/*** Selections ***/ + +/* compute_new_selection_rect/text calculates the area currently selected by + * view_rect. each handles a different mode; + */ +static GList * +compute_new_selection_rect (EvView *view, + GdkPoint *start, + GdkPoint *stop) +{ + GdkRectangle view_rect; + int n_pages, i; + GList *list = NULL; + + g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE); + + view_rect.x = MIN (start->x, stop->x); + view_rect.y = MIN (start->y, stop->y); + view_rect.width = MAX (start->x, stop->x) - view_rect.x; + view_rect.width = MAX (start->y, stop->y) - view_rect.y; + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + + for (i = 0; i < n_pages; i++) { + GdkRectangle page_area; + GtkBorder border; + + if (get_page_extents (view, i, &page_area, &border)) { + GdkRectangle overlap; + + if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) { + EvViewSelection *selection; + + selection = g_new0 (EvViewSelection, 1); + selection->page = i; + view_rect_to_doc_rect (view, &overlap, &page_area, + &(selection->rect)); + + list = g_list_append (list, selection); + } + } + } + + return list; +} + +static gboolean +gdk_rectangle_point_in (GdkRectangle *rectangle, + GdkPoint *point) +{ + return rectangle->x <= point->x && + rectangle->y <= point->y && + point->x < rectangle->x + rectangle->width && + point->y < rectangle->y + rectangle->height; +} + +static GList * +compute_new_selection_text (EvView *view, + GdkPoint *start, + GdkPoint *stop) +{ + int n_pages, i, first, last; + GList *list = NULL; + EvViewSelection *selection; + gint width, height; + int start_page, end_page; + + g_assert (view->selection_mode == EV_VIEW_SELECTION_TEXT); + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + + /* First figure out the range of pages the selection + * affects. */ + first = n_pages; + last = 0; + if (view->continuous) { + start_page = 0; + end_page = n_pages; + } else if (view->dual_page) { + start_page = view->start_page; + end_page = view->end_page + 1; + } else { + start_page = view->current_page; + end_page = view->current_page + 1; + } + + for (i = start_page; i < end_page; i++) { + GdkRectangle page_area; + GtkBorder border; + + get_page_extents (view, i, &page_area, &border); + if (gdk_rectangle_point_in (&page_area, start) || + gdk_rectangle_point_in (&page_area, stop)) { + if (first == n_pages) + first = i; + last = i; + } + + } + + + + /* Now create a list of EvViewSelection's for the affected + * pages. This could be an empty list, a list of just one + * page or a number of pages.*/ + for (i = first; i < last + 1; i++) { + GdkRectangle page_area; + GtkBorder border; + GdkPoint *point; + + ev_page_cache_get_size (view->page_cache, i, + view->rotation, + 1.0, &width, &height); + + selection = g_new0 (EvViewSelection, 1); + selection->page = i; + selection->rect.x1 = selection->rect.y1 = 0; + selection->rect.x2 = width; + selection->rect.y2 = height; + + get_page_extents (view, i, &page_area, &border); + + if (gdk_rectangle_point_in (&page_area, start)) + point = start; + else + point = stop; + + if (i == first) + view_point_to_doc_point (view, point, &page_area, + &selection->rect.x1, + &selection->rect.y1); + + /* If the selection is contained within just one page, + * make sure we don't write 'start' into both points + * in selection->rect. */ + if (first == last) + point = stop; + + if (i == last) + view_point_to_doc_point (view, point, &page_area, + &selection->rect.x2, + &selection->rect.y2); + + list = g_list_append (list, selection); + } + + return list; +} + +/* This function takes the newly calculated list, and figures out which regions + * have changed. It then queues a redraw approporiately. + */ +static void +merge_selection_region (EvView *view, + GList *new_list) +{ + GList *old_list; + GList *new_list_ptr, *old_list_ptr; + + /* Update the selection */ + old_list = ev_pixbuf_cache_get_selection_list (view->pixbuf_cache); + g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL); + view->selection_info.selections = new_list; + ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, new_list); + g_object_notify (G_OBJECT (view), "has-selection"); + + new_list_ptr = new_list; + old_list_ptr = old_list; + + while (new_list_ptr || old_list_ptr) { + EvViewSelection *old_sel, *new_sel; + int cur_page; + GdkRegion *region = NULL; + + new_sel = (new_list_ptr) ? (new_list_ptr->data) : NULL; + old_sel = (old_list_ptr) ? (old_list_ptr->data) : NULL; + + /* Assume that the lists are in order, and we run through them + * comparing them, one page at a time. We come out with the + * first page we see. */ + if (new_sel && old_sel) { + if (new_sel->page < old_sel->page) { + new_list_ptr = new_list_ptr->next; + old_sel = NULL; + } else if (new_sel->page > old_sel->page) { + old_list_ptr = old_list_ptr->next; + new_sel = NULL; + } else { + new_list_ptr = new_list_ptr->next; + old_list_ptr = old_list_ptr->next; + } + } else if (new_sel) { + new_list_ptr = new_list_ptr->next; + } else if (old_sel) { + old_list_ptr = old_list_ptr->next; + } + + g_assert (new_sel || old_sel); + + /* is the page we're looking at on the screen?*/ + cur_page = new_sel ? new_sel->page : old_sel->page; + if (cur_page < view->start_page || cur_page > view->end_page) + continue; + + /* seed the cache with a new page. We are going to need the new + * region too. */ + if (new_sel) { + GdkRegion *tmp_region = NULL; + ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache, + cur_page, + view->scale, + &tmp_region); + if (tmp_region) { + new_sel->covered_region = gdk_region_copy (tmp_region); + } + } + + /* Now we figure out what needs redrawing */ + if (old_sel && new_sel) { + if (old_sel->covered_region && + new_sel->covered_region) { + /* We only want to redraw the areas that have + * changed, so we xor the old and new regions + * and redraw if it's different */ + region = gdk_region_copy (old_sel->covered_region); + gdk_region_xor (region, new_sel->covered_region); + if (gdk_region_empty (region)) { + gdk_region_destroy (region); + region = NULL; + } + } else if (old_sel->covered_region) { + region = gdk_region_copy (old_sel->covered_region); + } else if (new_sel->covered_region) { + region = gdk_region_copy (new_sel->covered_region); + } + } else if (old_sel && !new_sel) { + if (old_sel->covered_region && !gdk_region_empty (old_sel->covered_region)) { + region = gdk_region_copy (old_sel->covered_region); + } + } else if (!old_sel && new_sel) { + if (new_sel->covered_region && !gdk_region_empty (new_sel->covered_region)) { + region = gdk_region_copy (new_sel->covered_region); + } + } else { + g_assert_not_reached (); + } + + /* Redraw the damaged region! */ + if (region) { + GdkRectangle page_area; + GtkBorder border; + + get_page_extents (view, cur_page, &page_area, &border); + gdk_region_offset (region, + page_area.x + border.left - view->scroll_x, + page_area.y + border.top - view->scroll_y); + gdk_window_invalidate_region (GTK_WIDGET (view)->window, region, TRUE); + gdk_region_destroy (region); + } + } + + /* Free the old list, now that we're done with it. */ + g_list_foreach (old_list, (GFunc) selection_free, NULL); +} - width -= (border.left + border.right + 2 * view->spacing); - height -= (border.top + border.bottom + 2 * view->spacing); +static void +compute_selections (EvView *view, + GdkPoint *start, + GdkPoint *stop) +{ + GList *list; - if (view->sizing_mode == EV_SIZING_FIT_WIDTH) - scale = zoom_for_size_fit_width (doc_width, doc_height, width, height, vsb_width); - else if (view->sizing_mode == EV_SIZING_BEST_FIT) - scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, vsb_width, hsb_height); + if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE) + list = compute_new_selection_rect (view, start, stop); else - g_assert_not_reached (); - - ev_view_set_zoom (view, scale, FALSE); + list = compute_new_selection_text (view, start, stop); + merge_selection_region (view, list); } +/* Free's the selection. It's up to the caller to queue redraws if needed. + */ +static void +selection_free (EvViewSelection *selection) +{ + if (selection->covered_region) + gdk_region_destroy (selection->covered_region); + g_free (selection); +} -void -ev_view_zoom_normal (EvView *view) +static void +clear_selection (EvView *view) { - ev_view_set_zoom (view, 1.0, FALSE); + g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL); + view->selection_info.selections = NULL; + view->selection_info.in_selection = FALSE; + g_object_notify (G_OBJECT (view), "has-selection"); } + void -ev_view_set_zoom_for_size (EvView *view, - int width, - int height, - int vsb_width, - int hsb_height) +ev_view_select_all (EvView *view) { - g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH || - view->sizing_mode == EV_SIZING_BEST_FIT); - g_return_if_fail (width >= 0); - g_return_if_fail (height >= 0); + int n_pages, i; - if (view->document == NULL) + /* Disable selection on rotated pages for the 0.4.0 series */ + if (view->rotation != 0) return; - if (view->presentation) - ev_view_zoom_for_size_presentation (view, width, height); - else if (view->continuous && view->dual_page) - ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height); - else if (view->continuous) - ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height); - else if (view->dual_page) - ev_view_zoom_for_size_dual_page (view, width, height, vsb_width, hsb_height); - else - ev_view_zoom_for_size_single_page (view, width, height, vsb_width, hsb_height); -} + clear_selection (view); -const char * -ev_view_get_status (EvView *view) -{ - g_return_val_if_fail (EV_IS_VIEW (view), NULL); + n_pages = ev_page_cache_get_n_pages (view->page_cache); + for (i = 0; i < n_pages; i++) { + int width, height; + EvViewSelection *selection; - return view->status; -} + ev_page_cache_get_size (view->page_cache, + i, + view->rotation, + 1.0, &width, &height); -const char * -ev_view_get_find_status (EvView *view) -{ - g_return_val_if_fail (EV_IS_VIEW (view), NULL); + selection = g_new0 (EvViewSelection, 1); + selection->page = i; + selection->rect.x1 = selection->rect.y1 = 0; + selection->rect.x2 = width; + selection->rect.y2 = height; - return view->find_status; + view->selection_info.selections = g_list_append (view->selection_info.selections, selection); + } + + ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, view->selection_info.selections); + g_object_notify (G_OBJECT (view), "has-selection"); + gtk_widget_queue_draw (GTK_WIDGET (view)); } gboolean -ev_view_can_find_next (EvView *view) +ev_view_get_has_selection (EvView *view) { - int n_results = 0; + return view->selection_info.selections != NULL; +} - if (EV_IS_DOCUMENT_FIND (view->document)) { - EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); +static char * +get_selected_text (EvView *ev_view) +{ + GString *text; + GList *l; + + text = g_string_new (NULL); + + ev_document_doc_mutex_lock (); - ev_document_doc_mutex_lock (); - n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); + for (l = ev_view->selection_info.selections; l != NULL; l = l->next) { + EvViewSelection *selection = (EvViewSelection *)l->data; + char *tmp; + + tmp = ev_document_get_text (ev_view->document, + selection->page, + &selection->rect); + g_string_append (text, tmp); + g_free (tmp); } - return n_results > 0; + ev_document_doc_mutex_unlock (); + + return g_string_free (text, FALSE); } void -ev_view_find_next (EvView *view) +ev_view_copy (EvView *ev_view) { - EvPageCache *page_cache; - int n_results, n_pages; - EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); + GtkClipboard *clipboard; + char *text; - page_cache = ev_document_get_page_cache (view->document); - ev_document_doc_mutex_lock (); - n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); + if (!ev_document_can_get_text (ev_view->document)) { + return; + } - n_pages = ev_page_cache_get_n_pages (page_cache); + text = get_selected_text (ev_view); + clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), + GDK_SELECTION_CLIPBOARD); + gtk_clipboard_set_text (clipboard, text, -1); + g_free (text); +} - view->find_result++; +static void +ev_view_primary_get_cb (GtkClipboard *clipboard, + GtkSelectionData *selection_data, + guint info, + gpointer data) +{ + EvView *ev_view = EV_VIEW (data); + char *text; - if (view->find_result >= n_results) { - view->find_result = 0; - view->find_page++; + if (!ev_document_can_get_text (ev_view->document)) { + return; + } - if (view->find_page >= n_pages) { - view->find_page = 0; - } + text = get_selected_text (ev_view); + gtk_selection_data_set_text (selection_data, text, -1); + g_free (text); +} + +static void +ev_view_primary_clear_cb (GtkClipboard *clipboard, + gpointer data) +{ + EvView *view = EV_VIEW (data); + + clear_selection (view); +} + +static void +ev_view_update_primary_selection (EvView *ev_view) +{ + GtkClipboard *clipboard; + + clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), + GDK_SELECTION_PRIMARY); - jump_to_find_page (view); + if (ev_view->selection_info.selections) { + if (!gtk_clipboard_set_with_owner (clipboard, + targets, + G_N_ELEMENTS (targets), + ev_view_primary_get_cb, + ev_view_primary_clear_cb, + G_OBJECT (ev_view))) + ev_view_primary_clear_cb (clipboard, ev_view); } else { - jump_to_find_result (view); - gtk_widget_queue_draw (GTK_WIDGET (view)); + if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view)) + gtk_clipboard_clear (clipboard); } } -void -ev_view_find_previous (EvView *view) +/*** Cursor operations ***/ + +static GdkCursor * +ev_view_create_invisible_cursor(void) { - int n_results, n_pages; - EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); - EvPageCache *page_cache; + GdkBitmap *empty; + GdkColor black = { 0, 0, 0, 0 }; + static char bits[] = { 0x00 }; - page_cache = ev_document_get_page_cache (view->document); + empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1); - ev_document_doc_mutex_lock (); - n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); + return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0); +} - n_pages = ev_page_cache_get_n_pages (page_cache); +static void +ev_view_set_cursor (EvView *view, EvViewCursor new_cursor) +{ + GdkCursor *cursor = NULL; + GdkDisplay *display; + GtkWidget *widget; - view->find_result--; + if (view->cursor == new_cursor) { + return; + } - if (view->find_result < 0) { - view->find_result = 0; - view->find_page--; + widget = gtk_widget_get_toplevel (GTK_WIDGET (view)); + display = gtk_widget_get_display (widget); + view->cursor = new_cursor; - if (view->find_page < 0) { - view->find_page = n_pages - 1; - } + switch (new_cursor) { + case EV_VIEW_CURSOR_NORMAL: + gdk_window_set_cursor (widget->window, NULL); + break; + case EV_VIEW_CURSOR_IBEAM: + cursor = gdk_cursor_new_for_display (display, GDK_XTERM); + break; + case EV_VIEW_CURSOR_LINK: + cursor = gdk_cursor_new_for_display (display, GDK_HAND2); + break; + case EV_VIEW_CURSOR_WAIT: + cursor = gdk_cursor_new_for_display (display, GDK_WATCH); + break; + case EV_VIEW_CURSOR_HIDDEN: + cursor = ev_view_create_invisible_cursor (); + break; + case EV_VIEW_CURSOR_DRAG: + cursor = gdk_cursor_new_for_display (display, GDK_FLEUR); + break; + } - jump_to_find_page (view); - } else { - jump_to_find_result (view); - gtk_widget_queue_draw (GTK_WIDGET (view)); + if (cursor) { + gdk_window_set_cursor (widget->window, cursor); + gdk_cursor_unref (cursor); + gdk_flush(); } } @@ -2637,6 +3963,49 @@ ev_view_show_cursor (EvView *view) ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); } +gboolean +ev_view_next_page (EvView *view) +{ + int page; + + g_return_val_if_fail (EV_IS_VIEW (view), FALSE); + + page = ev_page_cache_get_current_page (view->page_cache); + page = ev_view_get_dual_page (view) ? page + 2 : page + 1; + + if (page < ev_page_cache_get_n_pages (view->page_cache)) { + ev_page_cache_set_current_page (view->page_cache, page); + return TRUE; + } else if (ev_view_get_dual_page (view) && page == ev_page_cache_get_n_pages (view->page_cache)) { + ev_page_cache_set_current_page (view->page_cache, page - 1); + return TRUE; + } else { + return FALSE; + } +} + +gboolean +ev_view_previous_page (EvView *view) +{ + int page; + + g_return_val_if_fail (EV_IS_VIEW (view), FALSE); + + page = ev_page_cache_get_current_page (view->page_cache); + page = ev_view_get_dual_page (view) ? page - 2 : page - 1; + + if (page >= 0) { + ev_page_cache_set_current_page (view->page_cache, page); + return TRUE; + } else if (ev_view_get_dual_page (view) && page == -1) { + ev_page_cache_set_current_page (view->page_cache, 0); + return TRUE; + } else { + return FALSE; + } +} + +/*** Enum description for usage in signal ***/ GType ev_sizing_mode_get_type (void)