X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=shell%2Fev-view.c;h=8e494adedc1a527007b1860ddb634a725c1dc06a;hb=848665b157185945d190a7a746d054d7f5d5e6e0;hp=e39f34931dc73ef779ee9b9d0af133ac63a447d8;hpb=42414e4f59ef90ea80e49214ea6c50b38dd4ba2d;p=evince.git diff --git a/shell/ev-view.c b/shell/ev-view.c index e39f3493..8e494ade 100644 --- a/shell/ev-view.c +++ b/shell/ev-view.c @@ -29,6 +29,7 @@ #include "ev-marshal.h" #include "ev-view.h" +#include "ev-selection.h" #include "ev-document-find.h" #include "ev-document-misc.h" #include "ev-debug.h" @@ -49,19 +50,21 @@ enum { PROP_FULLSCREEN, PROP_PRESENTATION, PROP_SIZING_MODE, + PROP_ZOOM, }; enum { - TARGET_STRING, - TARGET_TEXT, - TARGET_COMPOUND_TEXT, - TARGET_UTF8_STRING, - TARGET_TEXT_BUFFER_CONTENTS + SIGNAL_BINDING_ACTIVATED, + SIGNAL_ZOOM_INVALID, + 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[] = { @@ -71,36 +74,63 @@ static const GtkTargetEntry targets[] = { { "UTF8_STRING", 0, TARGET_UTF8_STRING }, }; +static guint signals[N_SIGNALS]; + typedef enum { EV_VIEW_CURSOR_NORMAL, + EV_VIEW_CURSOR_IBEAM, EV_VIEW_CURSOR_LINK, EV_VIEW_CURSOR_WAIT, - EV_VIEW_CURSOR_HIDDEN + EV_VIEW_CURSOR_HIDDEN, + EV_VIEW_CURSOR_DRAG } EvViewCursor; #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 +#define MAX_SCALE 4.0 + +/* Information for middle clicking and moving around the doc */ +typedef struct { + gboolean in_drag; + GdkPoint start; + gdouble hadj; + gdouble vadj; +} DragInfo; + +/* Information for handling selection */ +typedef struct { + gboolean in_selection; + GdkPoint start; + GList *selections; +} SelectionInfo; + +typedef enum { + SCROLL_TO_KEEP_POSITION, + SCROLL_TO_CURRENT_PAGE, + SCROLL_TO_CENTER +} PendingScroll; struct _EvView { GtkWidget parent_instance; EvDocument *document; - GdkWindow *bin_window; - char *status; char *find_status; - int scroll_x; - int scroll_y; + gint scroll_x; + gint scroll_y; + + /* Information for middle clicking and dragging around. */ + DragInfo drag_info; + + /* Selection */ + EvViewSelectionMode selection_mode; + SelectionInfo selection_info; gboolean pressed_button; - gboolean has_selection; - GdkPoint selection_start; - EvRectangle selection; EvViewCursor cursor; GtkAdjustment *hadjustment; @@ -120,13 +150,15 @@ struct _EvView { int spacing; double scale; - GtkBorder border; gboolean continuous; gboolean dual_page; gboolean fullscreen; gboolean presentation; EvSizingMode sizing_mode; + + PendingScroll pending_scroll; + gboolean pending_resize; }; struct _EvViewClass { @@ -135,54 +167,239 @@ struct _EvViewClass { void (*set_scroll_adjustments) (EvView *view, GtkAdjustment *hadjustment, GtkAdjustment *vadjustment); - void (*scroll_view) (EvView *view, + void (*binding_activated) (EvView *view, GtkScrollType scroll, gboolean horizontal); - + void (*zoom_invalid) (EvView *view); }; - -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); +/*** 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, + 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); + +/*** Hyperrefs ***/ +static EvLink* get_link_at_location (EvView *view, + gdouble x, + gdouble y); +static void go_to_link (EvView *view, + EvLink *link); +static char* status_message_from_link (EvView *view, + EvLink *link); + +/*** 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 void ev_view_unrealize (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_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); + +/*** 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); + +/*** 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_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); + +/*** Selection ***/ +static void compute_selections (EvView *view, + GdkPoint *start, + GdkPoint *stop); +static void clear_selection (EvView *view); +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; + GdkRectangle page_area; + GtkBorder border; - 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; + get_page_extents (view, view->current_page, &page_area, &border); - 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) { + if (view->continuous) { + gtk_adjustment_clamp_page (view->vadjustment, + page_area.y - view->spacing, + page_area.y + view->vadjustment->page_size); + } else { + gtk_adjustment_set_value (view->vadjustment, + view->vadjustment->lower); + } + } else { + if (view->dual_page) { + gtk_adjustment_clamp_page (view->hadjustment, + page_area.x, + page_area.x + view->hadjustment->page_size); + } else { + gtk_adjustment_set_value (view->hadjustment, + CLAMP (view->hadjustment->value, + view->hadjustment->lower, + view->hadjustment->upper - + view->hadjustment->page_size)); + } } - - if (view->document) - view_update_range_and_current_page (view); } static void @@ -191,10 +408,12 @@ 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; @@ -208,20 +427,43 @@ 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_CURRENT_PAGE: + 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_CURRENT_PAGE: + 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 @@ -233,60 +475,41 @@ view_update_range_and_current_page (EvView *view) view->end_page = view->current_page; } else if (view->continuous) { GdkRectangle current_area, unused, page_area; + GtkBorder border; gint current_page; 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); + view->current_page = view->start_page; 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) { @@ -306,42 +529,207 @@ view_update_range_and_current_page (EvView *view) ev_pixbuf_cache_set_page_range (view->pixbuf_cache, view->start_page, view->end_page, - view->scale); + view->scale, + view->selection_info.selections); +} + +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); + } + } } -/*** Virtual function implementations ***/ +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); + + on_adjustment_value_changed (NULL, view); +} static void -ev_view_finalize (GObject *object) +add_scroll_binding_keypad (GtkBindingSet *binding_set, + guint keyval, + GtkScrollType scroll, + gboolean horizontal) { - EvView *view = EV_VIEW (object); + guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; - LOG ("Finalize"); + gtk_binding_entry_add_signal (binding_set, keyval, 0, + "binding_activated", 2, + GTK_TYPE_SCROLL_TYPE, scroll, + G_TYPE_BOOLEAN, horizontal); + gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0, + "binding_activated", 2, + GTK_TYPE_SCROLL_TYPE, scroll, + G_TYPE_BOOLEAN, horizontal); +} - g_free (view->status); - g_free (view->find_status); +void +ev_view_scroll (EvView *view, + EvScrollType scroll) +{ + GtkAdjustment *adjustment; + double value, increment; + gboolean first_page = FALSE; + gboolean last_page = FALSE; - G_OBJECT_CLASS (ev_view_parent_class)->finalize (object); + /* 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; + } + + gtk_adjustment_set_value (adjustment, value); } static void -ev_view_destroy (GtkObject *object) +ev_view_binding_activated (EvView *view, + GtkScrollType scroll, + gboolean horizontal) { - EvView *view = EV_VIEW (object); + GtkAdjustment *adjustment; + double value; - if (view->document) { - g_object_unref (view->document); - view->document = NULL; + if (view->presentation) { + switch (scroll) { + case GTK_SCROLL_STEP_BACKWARD: + ev_page_cache_prev_page (view->page_cache); + break; + case GTK_SCROLL_STEP_FORWARD: + ev_page_cache_next_page (view->page_cache); + break; + default: + break; + } + return; } - if (view->pixbuf_cache) { - g_object_unref (view->pixbuf_cache); - view->pixbuf_cache = NULL; + + if (horizontal) { + adjustment = view->hadjustment; + } else { + adjustment = view->vadjustment; } - ev_view_set_scroll_adjustments (view, NULL, NULL); - GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object); + 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); + + gtk_adjustment_set_value (adjustment, value); +} + +#define MARGIN 5 + +static void +ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect) +{ + 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); + } } +/*** Geometry computations ***/ + static void compute_border (EvView *view, int width, int height, GtkBorder *border) { @@ -355,6 +743,32 @@ 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) +{ + int max_width, offset; + GtkBorder border; + + g_return_if_fail (y_offset != NULL); + + ev_page_cache_get_max_width (view->page_cache, 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, zoom, NULL, &offset); + offset += (page / 2 + 1) * view->spacing + (page / 2) * (border.top + border.bottom); + } else { + ev_page_cache_get_height_to_page (view->page_cache, page, 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, @@ -366,22 +780,6 @@ get_page_extents (EvView *view, widget = GTK_WIDGET (view); - /* 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; - } - /* Get the size of the page */ ev_page_cache_get_size (view->page_cache, page, view->scale, @@ -394,20 +792,24 @@ get_page_extents (EvView *view, 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 max_width; gint x, y; - get_bounding_box_size (view, &max_width, &max_height); + ev_page_cache_get_max_width (view->page_cache, 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) * (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; + x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3)) / 2; + if (page % 2 == 0) + 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 { @@ -424,7 +826,7 @@ get_page_extents (EvView *view, /* First, we get the bounding box of the two pages */ if (other_page < ev_page_cache_get_n_pages (view->page_cache)) { ev_page_cache_get_size (view->page_cache, - page + 1, + other_page, view->scale, &width_2, &height_2); if (width_2 > width) @@ -455,8 +857,8 @@ 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; @@ -466,19 +868,28 @@ get_page_extents (EvView *view, return TRUE; } -#if 0 static void -view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, EvRectangle *doc_rect) +view_point_to_doc_point (EvView *view, + GdkPoint *view_point, + GdkRectangle *page_area, + double *doc_point_x, + double *doc_point_y) { - int x_offset, y_offset; + *doc_point_x = (double) (view_point->x - page_area->x) / view->scale; + *doc_point_y = (double) (view_point->y - page_area->y) / view->scale; +} - ev_view_get_offsets (view, &x_offset, &y_offset); - doc_rect->x1 = (double) (view_rect->x - x_offset) / view->scale; - doc_rect->y1 = (double) (view_rect->y - y_offset) / view->scale; +static void +view_rect_to_doc_rect (EvView *view, + GdkRectangle *view_rect, + GdkRectangle *page_area, + EvRectangle *doc_rect) +{ + 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; } -#endif static void doc_rect_to_view_rect (EvView *view, @@ -501,43 +912,159 @@ doc_rect_to_view_rect (EvView *view, } 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 ((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; +} + +/*** Hyperref ***/ +static EvLink * +get_link_at_location (EvView *view, + gdouble x, + gdouble y) +{ + gint page = -1; + gint x_offset = 0, y_offset = 0; + GList *link_mapping; + + find_page_at_location (view, x, y, &page, &x_offset, &y_offset); + + if (page == -1) + return NULL; - 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; + 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; +} + +/* FIXME: standardize this sometime */ +static void +go_to_link (EvView *view, EvLink *link) +{ + EvLinkType type; + const char *uri; + 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_EXTERNAL_URI: + uri = ev_link_get_uri (link); + gnome_vfs_url_show (uri); + break; } +} + +static char * +status_message_from_link (EvView *view, EvLink *link) +{ + EvLinkType type; + char *msg = NULL; + char *page_label; + type = ev_link_get_link_type (link); - 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; + 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; } + + return msg; } +/*** GtkWidget implementation ***/ + static void -ev_view_size_request_continuous_and_dual_page (EvView *view, - GtkRequisition *requisition) +ev_view_size_request_continuous_dual_page (EvView *view, + GtkRequisition *requisition) { - int max_width, max_height; - int n_rows; + int max_width; + gint n_pages; + GtkBorder border; - get_bounding_box_size (view, &max_width, &max_height); + ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width); + compute_border (view, max_width, max_width, &border); - n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2; + n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1; - requisition->width = (max_width * 2) + (view->spacing * 3); - requisition->height = max_height * n_rows + (view->spacing * (n_rows + 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; @@ -553,15 +1080,17 @@ static void ev_view_size_request_continuous (EvView *view, GtkRequisition *requisition) { - int max_width, max_height; + int max_width; int n_pages; + GtkBorder border; - get_bounding_box_size (view, &max_width, &max_height); + ev_page_cache_get_max_width (view->page_cache, 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); - requisition->height = max_height * n_pages + (view->spacing * (n_pages + 1)); + 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; @@ -642,9 +1171,6 @@ 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; @@ -658,7 +1184,7 @@ 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) @@ -673,19 +1199,24 @@ 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 @@ -706,21 +1237,6 @@ 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 | @@ -729,63 +1245,49 @@ ev_view_realize (GtkWidget *widget) GDK_POINTER_MOTION_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); - } + gdk_window_set_background (widget->window, &widget->style->mid [GTK_STATE_NORMAL]); } 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); } static gboolean ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event) { - EvView *view = EV_VIEW (widget); - - if ((event->state & GDK_CONTROL_MASK) != 0) { + EvView *view = EV_VIEW (widget); - ev_view_set_sizing_mode (view, EV_SIZING_FREE); + if ((event->state & GDK_CONTROL_MASK) != 0) { - if ((event->direction == GDK_SCROLL_UP || - event->direction == GDK_SCROLL_LEFT) && - ev_view_can_zoom_in (view)) { - ev_view_zoom_in (view); - } else if (ev_view_can_zoom_out (view)) { - ev_view_zoom_out (view); - } + ev_view_set_sizing_mode (view, EV_SIZING_FREE); + 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)) { + ev_view_zoom_out (view); + } + } return TRUE; } - - if ((event->state & GDK_SHIFT_MASK) != 0) { + + if ((event->state & GDK_SHIFT_MASK) != 0) { if (event->direction == GDK_SCROLL_UP) event->direction = GDK_SCROLL_LEFT; if (event->direction == GDK_SCROLL_DOWN) @@ -795,506 +1297,149 @@ ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event) 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; + + for (list = view->selection_info.selections; list != NULL; list = list->next) { + EvViewSelection *selection; + + selection = (EvViewSelection *) list->data; + + if (selection->page == page) + return selection; + } + + return NULL; } -static void -draw_rubberband (GtkWidget *widget, GdkWindow *window, - const GdkRectangle *rect, guchar alpha) +static gboolean +ev_view_expose_event (GtkWidget *widget, + GdkEventExpose *event) { - GdkGC *gc; - GdkPixbuf *pixbuf; - GdkColor *fill_color_gdk; - guint fill_color; + EvView *view = EV_VIEW (widget); + int i; - 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; + if (view->document == NULL) + return FALSE; - pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, - rect->width, rect->height); - gdk_pixbuf_fill (pixbuf, fill_color); + for (i = view->start_page; i <= view->end_page; i++) { + GdkRectangle page_area; + GtkBorder border; - gdk_draw_pixbuf (window, NULL, pixbuf, - 0, 0, - rect->x, rect->y, - rect->width, rect->height, - GDK_RGB_DITHER_NONE, - 0, 0); + if (!get_page_extents (view, i, &page_area, &border)) + continue; - g_object_unref (pixbuf); + page_area.x -= view->scroll_x; + page_area.y -= view->scroll_y; - 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); + draw_one_page (view, i, &page_area, &border, &(event->area)); - gdk_color_free (fill_color_gdk); -} + if (EV_IS_DOCUMENT_FIND (view->document)) + highlight_find_results (view, i); + } + return FALSE; +} -static void -highlight_find_results (EvView *view, int page) +static gboolean +ev_view_button_press_event (GtkWidget *widget, + GdkEventButton *event) { - EvDocumentFind *find; - int i, results = 0; + EvView *view = EV_VIEW (widget); - g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document)); + if (!GTK_WIDGET_HAS_FOCUS (widget)) { + gtk_widget_grab_focus (widget); + } - find = EV_DOCUMENT_FIND (view->document); + view->pressed_button = event->button; - results = ev_document_find_get_n_results (find, page); + switch (event->button) { + case 1: + if (view->selection_info.selections) { + clear_selection (view); + gtk_widget_queue_draw (widget); + } - for (i = 0; i < results; i++) { - EvRectangle rectangle; - GdkRectangle view_rectangle; - guchar alpha; + 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); - alpha = (i == view->find_result) ? 0x90 : 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), view->bin_window, - &view_rectangle, alpha); - } + ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG); + + return TRUE; + } + + return FALSE; } -static void -draw_one_page (EvView *view, - gint page, - GdkRectangle *page_area, - GtkBorder *border, - GdkRectangle *expose_area) +static gboolean +ev_view_motion_notify_event (GtkWidget *widget, + GdkEventMotion *event) { - gint width, height; - GdkPixbuf *scaled_image; - GdkPixbuf *current_pixbuf; - GdkRectangle overlap; - GdkRectangle real_page_area; + EvView *view = EV_VIEW (widget); - g_assert (view->document); + if (!view->document) + return FALSE; - if (! gdk_rectangle_intersect (page_area, expose_area, &overlap)) - return; + if (view->pressed_button == 1) { + GdkPoint point; - ev_page_cache_get_size (view->page_cache, - page, view->scale, - &width, &height); + view->selection_info.in_selection = TRUE; + point.x = event->x + view->scroll_x; + point.y = event->y + view->scroll_y; + compute_selections (view, &view->selection_info.start, &point); - ev_document_misc_paint_one_page (view->bin_window, - GTK_WIDGET (view), - page_area, border); - - /* Render the document itself */ - real_page_area = *page_area; - - 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 (! gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) - return; - - 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); - } -} - -static void -ev_view_bin_expose (EvView *view, - GdkEventExpose *event) -{ - int i; - - if (view->document == NULL) - return; - - for (i = view->start_page; i <= view->end_page; i++) { - GdkRectangle page_area; - GtkBorder border; + return TRUE; + } else if (view->pressed_button == 2) { + if (!view->drag_info.in_drag) { + gboolean start; - if (! get_page_extents (view, i, &page_area, &border)) - continue; - - draw_one_page (view, i, &page_area, &border, &(event->area)); - - if (EV_IS_DOCUMENT_FIND (view->document)) { - highlight_find_results (view, i); + 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; } - } - -#if 0 - if (view->has_selection) { - GdkRectangle rubberband; - - doc_rect_to_view_rect (view, &view->selection, &rubberband); - if (rubberband.width > 0 && rubberband.height > 0) { - draw_rubberband (GTK_WIDGET (view), view->bin_window, - &rubberband, 0x40); - } - } -#endif -} - -static gboolean -ev_view_expose_event (GtkWidget *widget, - GdkEventExpose *event) -{ - EvView *view = EV_VIEW (widget); - - 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; -} - -void -ev_view_select_all (EvView *ev_view) -{ -#if 0 - GtkWidget *widget = GTK_WIDGET (ev_view); - GdkRectangle selection; - int width, height; - int x_offset, y_offset; - - g_return_if_fail (EV_IS_VIEW (ev_view)); - - - ev_view_get_offsets (ev_view, &x_offset, &y_offset); - ev_page_cache_get_size (ev_view->page_cache, - ev_view->current_page, - ev_view->scale, - &width, &height); - - ev_view->has_selection = TRUE; - selection.x = x_offset + ev_view->border.left; - selection.y = y_offset + ev_view->border.top; - selection.width = width; - selection.height = height; - view_rect_to_doc_rect (ev_view, &selection, &ev_view->selection); - - gtk_widget_queue_draw (widget); -#endif -} - -void -ev_view_copy (EvView *ev_view) -{ - GtkClipboard *clipboard; - char *text; - - if (!ev_document_can_get_text (ev_view->document)) { - return; - } - - ev_document_doc_mutex_lock (); - text = ev_document_get_text (ev_view->document, - ev_view->current_page, - &ev_view->selection); - ev_document_doc_mutex_unlock (); - - clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), - GDK_SELECTION_CLIPBOARD); - gtk_clipboard_set_text (clipboard, text, -1); - g_free (text); -} - -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 (!ev_document_can_get_text (ev_view->document)) { - return; - } - - ev_document_doc_mutex_lock (); - text = ev_document_get_text (ev_view->document, - ev_view->current_page, - &ev_view->selection); - ev_document_doc_mutex_unlock (); - gtk_selection_data_set_text (selection_data, text, -1); -} - -static void -ev_view_primary_clear_cb (GtkClipboard *clipboard, - gpointer data) -{ - EvView *ev_view = EV_VIEW (data); - - ev_view->has_selection = FALSE; -} - -static void -ev_view_update_primary_selection (EvView *ev_view) -{ - GtkClipboard *clipboard; - - clipboard = gtk_widget_get_clipboard (GTK_WIDGET (ev_view), - GDK_SELECTION_PRIMARY); - - if (ev_view->has_selection) { - 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_button_press_event (GtkWidget *widget, - GdkEventButton *event) -{ - EvView *view = EV_VIEW (widget); - - if (!GTK_WIDGET_HAS_FOCUS (widget)) { - gtk_widget_grab_focus (widget); - } - - view->pressed_button = event->button; - - switch (event->button) { - case 1: - if (view->has_selection) { - view->has_selection = FALSE; - gtk_widget_queue_draw (widget); - } - - view->selection_start.x = event->x; - view->selection_start.y = event->y; - break; - } - - return TRUE; -} - -static char * -status_message_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: - 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 -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 -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"); -} - -static GdkCursor * -ev_view_create_invisible_cursor(void) -{ - GdkBitmap *empty; - GdkColor black = { 0, 0, 0, 0 }; - static char bits[] = { 0x00 }; - - empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1); - - return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0); -} - -static void -ev_view_set_cursor (EvView *view, EvViewCursor new_cursor) -{ - GdkCursor *cursor = NULL; - GdkDisplay *display; - GtkWidget *widget; - - if (view->cursor == new_cursor) { - return; - } - - widget = gtk_widget_get_toplevel (GTK_WIDGET (view)); - display = gtk_widget_get_display (widget); - view->cursor = new_cursor; - - 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; - - } - - if (cursor) { - gdk_window_set_cursor (widget->window, cursor); - gdk_cursor_unref (cursor); - gdk_flush(); - } -} - - -static void -find_page_at_location (EvView *view, - gdouble x, - gdouble y, - gint *page, - gint *x_offset, - gint *y_offset) -{ - 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 ((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; + if (view->drag_info.in_drag) { + 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; } - } - - *page = -1; -} - -static EvLink * -get_link_at_location (EvView *view, - gdouble x, - gdouble y) -{ - gint page = -1; - gint x_offset = 0, y_offset = 0; - GList *link_mapping; - - 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 gboolean -ev_view_motion_notify_event (GtkWidget *widget, - GdkEventMotion *event) -{ - EvView *view = EV_VIEW (widget); - - if (view->pressed_button > 0) { - GdkRectangle selection; - - view->has_selection = TRUE; - 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; -#if 0 - view_rect_to_doc_rect (view, &selection, &view->selection); -#endif - - gtk_widget_queue_draw (widget); - } else if (view->document) { + } else if (view->pressed_button <= 0) { EvLink *link; - link = get_link_at_location (view, event->x, event->y); + link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y); if (link) { char *msg; @@ -1302,56 +1447,39 @@ ev_view_motion_notify_event (GtkWidget *widget, ev_view_set_status (view, msg); ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK); g_free (msg); + } else if (location_in_text (view, event->x + view->scroll_x, event->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) { + if (view->cursor == EV_VIEW_CURSOR_LINK || + view->cursor == EV_VIEW_CURSOR_IBEAM) ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); - } } + return TRUE; } - return TRUE; -} - -/* FIXME: standardize this sometime */ -static void -go_to_link (EvView *view, EvLink *link) -{ - EvLinkType type; - const char *uri; - 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_EXTERNAL_URI: - uri = ev_link_get_uri (link); - gnome_vfs_url_show (uri); - break; - } + return FALSE; } - 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); + } + view->pressed_button = -1; + view->drag_info.in_drag = FALSE; - if (view->has_selection) { + if (view->selection_info.selections) { ev_view_update_primary_selection (view); } else if (view->document) { EvLink *link; - link = get_link_at_location (view, event->x, event->y); + link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y); if (link) { go_to_link (view, link); } @@ -1360,183 +1488,217 @@ ev_view_button_release_event (GtkWidget *widget, return FALSE; } +/*** Drawing ***/ + +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 void -on_adjustment_value_changed (GtkAdjustment *adjustment, - EvView *view) +draw_rubberband (GtkWidget *widget, GdkWindow *window, + const GdkRectangle *rect, guchar alpha) { - view_update_adjustments (view); + GdkGC *gc; + GdkPixbuf *pixbuf; + GdkColor *fill_color_gdk; + guint fill_color; + + 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; + + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, + rect->width, rect->height); + gdk_pixbuf_fill (pixbuf, fill_color); + + 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); + + g_object_unref (pixbuf); + + 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); + + gdk_color_free (fill_color_gdk); } + static void -set_scroll_adjustment (EvView *view, - GtkOrientation orientation, - GtkAdjustment *adjustment) +highlight_find_results (EvView *view, int page) { - GtkAdjustment **to_set; + EvDocumentFind *find; + int i, results = 0; - if (orientation == GTK_ORIENTATION_HORIZONTAL) - to_set = &view->hadjustment; - else - to_set = &view->vadjustment; + g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document)); - 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); - } + find = EV_DOCUMENT_FIND (view->document); - *to_set = adjustment; - view_set_adjustment_values (view, orientation); + results = ev_document_find_get_n_results (find, page); + + for (i = 0; i < results; i++) { + EvRectangle rectangle; + GdkRectangle view_rectangle; + guchar alpha; - if (*to_set) { - g_object_ref (*to_set); - g_signal_connect (*to_set, "value_changed", - G_CALLBACK (on_adjustment_value_changed), view); + 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_scroll_adjustments (EvView *view, - GtkAdjustment *hadjustment, - GtkAdjustment *vadjustment) +draw_one_page (EvView *view, + gint page, + GdkRectangle *page_area, + GtkBorder *border, + GdkRectangle *expose_area) { - set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment); - set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment); + gint width, height; + GdkPixbuf *current_pixbuf; + GdkRectangle overlap; + GdkRectangle real_page_area; + EvViewSelection *selection; - view_update_adjustments (view); -} + g_assert (view->document); + if (! gdk_rectangle_intersect (page_area, expose_area, &overlap)) + return; -static void -add_scroll_binding_keypad (GtkBindingSet *binding_set, - guint keyval, - GtkScrollType scroll, - gboolean horizontal) -{ - guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left; + selection = find_selection_for_page (view, page); + ev_page_cache_get_size (view->page_cache, + page, view->scale, + &width, &height); + /* Render the document itself */ + real_page_area = *page_area; - 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); -} + 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); -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); -} + ev_document_misc_paint_one_page (GTK_WIDGET(view)->window, + GTK_WIDGET (view), + page_area, border); -static void -ev_view_jump (EvView *view, - GtkScrollType scroll) -{ - GtkAdjustment *adjustment; - double value, increment; - gboolean first_page = FALSE; - gboolean last_page = FALSE; + if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) { + GdkPixbuf *selection_pixbuf = NULL; + GdkPixbuf *scaled_image; + GdkPixbuf *scaled_selection; - /* Assign values for increment and vertical adjustment */ - adjustment = view->vadjustment; - increment = adjustment->page_size * 0.75; - value = adjustment->value; + current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page); - /* 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; + /* 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); - 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 (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); + } - gtk_adjustment_set_value (adjustment, value); + 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 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; +ev_view_finalize (GObject *object) +{ + EvView *view = EV_VIEW (object); - if (horizontal) { - adjustment = view->hadjustment; - } else { - adjustment = view->vadjustment; - } + LOG ("Finalize"); - value = adjustment->value; + g_free (view->status); + g_free (view->find_status); - switch (scroll) { - case GTK_SCROLL_STEP_BACKWARD: - value -= adjustment->step_increment; - break; - case GTK_SCROLL_STEP_FORWARD: - value += adjustment->step_increment; - break; - default: - break; - } + clear_selection (view); + + G_OBJECT_CLASS (ev_view_parent_class)->finalize (object); +} - value = CLAMP (value, adjustment->lower, - adjustment->upper - adjustment->page_size); +static void +ev_view_destroy (GtkObject *object) +{ + EvView *view = EV_VIEW (object); - gtk_adjustment_set_value (adjustment, value); + 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; } + ev_view_set_scroll_adjustments (view, NULL, NULL); + + GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object); } static void @@ -1564,6 +1726,9 @@ 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; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } @@ -1600,6 +1765,9 @@ 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; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } @@ -1629,27 +1797,36 @@ ev_view_class_init (EvViewClass *class) 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); g_object_class_install_property (object_class, PROP_STATUS, @@ -1706,164 +1883,48 @@ 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); - - 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); - - 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); -} - -static void -ev_view_init (EvView *view) -{ - GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS); - - view->spacing = 10; - view->scale = 1.0; - view->current_page = 0; - view->pressed_button = -1; - view->cursor = EV_VIEW_CURSOR_NORMAL; - - view->continuous = TRUE; - view->dual_page = FALSE; - view->presentation = FALSE; - view->fullscreen = FALSE; - view->sizing_mode = EV_SIZING_FIT_WIDTH; -} - -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; - - 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 - -static void -ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect) -{ - 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); - } -} - -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; - - ev_document_doc_mutex_lock (); - n_results = ev_document_find_get_n_results (find, page); - ev_document_doc_mutex_unlock (); + 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)); - 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 (); + binding_set = gtk_binding_set_by_class (class); - doc_rect_to_view_rect (view, page, &rect, &view_rect); - ensure_rectangle_is_visible (view, &view_rect); - } + 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); } static void -jump_to_find_page (EvView *view) +ev_view_init (EvView *view) { - 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; + GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS); - page = i + view->find_page; - if (page >= n_pages) { - page = page - n_pages; - } + view->spacing = 5; + view->scale = 1.0; + view->current_page = 0; + view->pressed_button = -1; + view->cursor = EV_VIEW_CURSOR_NORMAL; + view->drag_info.in_drag = FALSE; + view->selection_info.in_selection = FALSE; - 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; - } - } + 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 find_changed_cb (EvDocument *document, int page, EvView *view) { @@ -1874,17 +1935,6 @@ find_changed_cb (EvDocument *document, int page, EvView *view) if (view->current_page == page) gtk_widget_queue_draw (GTK_WIDGET (view)); } -/*** Public API ***/ - -GtkWidget* -ev_view_new (void) -{ - GtkWidget *view; - - view = g_object_new (EV_TYPE_VIEW, NULL); - - return view; -} static void job_finished_cb (EvPixbufCache *pixbuf_cache, @@ -1893,62 +1943,88 @@ job_finished_cb (EvPixbufCache *pixbuf_cache, gtk_widget_queue_draw (GTK_WIDGET (view)); } - static void page_changed_cb (EvPageCache *page_cache, int new_page, 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; + if (view->current_page != new_page) { - ev_page_cache_get_size (page_cache, - old_page, - view->scale, - &old_width, &old_height); + view->current_page = new_page; + view->pending_scroll = SCROLL_TO_CURRENT_PAGE; + gtk_widget_queue_resize (GTK_WIDGET (view)); - view->current_page = new_page; - view->has_selection = FALSE; + if (EV_IS_DOCUMENT_FIND (view->document)) { + view->find_page = new_page; + view->find_result = 0; + update_find_status_message (view); + } + } +} - ev_page_cache_get_size (page_cache, - new_page, - view->scale, - &new_width, &new_height); +static void on_adjustment_value_changed (GtkAdjustment *adjustment, + EvView *view) +{ + int dx = 0, dy = 0; - compute_border (view, new_width, new_height, &(view->border)); + if (! GTK_WIDGET_REALIZED (view)) + return; - 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); + if (view->hadjustment) { + dx = view->scroll_x - (int) view->hadjustment->value; + view->scroll_x = (int) view->hadjustment->value; + } else { + view->scroll_x = 0; + } - gtk_adjustment_clamp_page(view->vadjustment, - (max_height + view->spacing) * n_rows, - (max_height + view->spacing) * n_rows + - view->vadjustment->page_size); + if (view->vadjustment) { + dy = view->scroll_y - (int) view->vadjustment->value; + view->scroll_y = (int) view->vadjustment->value; } else { - gtk_adjustment_set_value (view->vadjustment, - view->vadjustment->lower); + view->scroll_y = 0; } - if (EV_IS_DOCUMENT_FIND (view->document)) { - view->find_page = new_page; - view->find_result = 0; - update_find_status_message (view); + + 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); +} + +GtkWidget* +ev_view_new (void) +{ + GtkWidget *view; + + view = g_object_new (EV_TYPE_VIEW, NULL); + + return view; +} + +static void +setup_caches (EvView *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 (view->document); + g_signal_connect (view->pixbuf_cache, "job-finished", G_CALLBACK (job_finished_cb), view); +} + +static void +clear_caches (EvView *view) +{ + if (view->pixbuf_cache) { + g_object_unref (view->pixbuf_cache); + view->pixbuf_cache = NULL; } - view_update_range_and_current_page (view); + if (view->document) { + ev_page_cache_clear (view->document); + } } void @@ -1958,6 +2034,8 @@ ev_view_set_document (EvView *view, g_return_if_fail (EV_IS_VIEW (view)); if (document != view->document) { + clear_caches (view); + if (view->document) { g_signal_handlers_disconnect_by_func (view->document, find_changed_cb, @@ -1979,16 +2057,16 @@ 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, @@ -2006,8 +2084,13 @@ 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 @@ -2016,6 +2099,14 @@ 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) @@ -2026,12 +2117,21 @@ ev_view_set_continuous (EvView *view, if (view->continuous != continuous) { view->continuous = continuous; + view->pending_scroll = SCROLL_TO_CURRENT_PAGE; 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) @@ -2043,6 +2143,7 @@ ev_view_set_dual_page (EvView *view, if (view->dual_page == dual_page) return; + view->pending_scroll = SCROLL_TO_CURRENT_PAGE; 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. @@ -2060,11 +2161,12 @@ 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"); } @@ -2088,13 +2190,15 @@ ev_view_set_presentation (EvView *view, return; view->presentation = presentation; + view->pending_scroll = SCROLL_TO_CURRENT_PAGE; 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]); } @@ -2121,7 +2225,7 @@ 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"); } @@ -2150,6 +2254,7 @@ 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); } @@ -2158,10 +2263,57 @@ 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); } +static void +ev_view_set_orientation (EvView *view, + EvOrientation orientation) +{ + ev_document_set_orientation (view->document, orientation); + + clear_caches (view); + setup_caches (view); + + gtk_widget_queue_resize (GTK_WIDGET (view)); +} + +void +ev_view_rotate_right (EvView *view) +{ + EvOrientation orientation, new_orientation; + + orientation = ev_document_get_orientation (view->document); + if (orientation == EV_ORIENTATION_PORTRAIT) { + new_orientation = EV_ORIENTATION_LANDSCAPE; + } else if (orientation == EV_ORIENTATION_LANDSCAPE) { + new_orientation = EV_ORIENTATION_UPSIDEDOWN; + } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) { + new_orientation = EV_ORIENTATION_SEASCAPE; + } else { + new_orientation = EV_ORIENTATION_PORTRAIT; + } + ev_view_set_orientation (view, new_orientation); +} + +void +ev_view_rotate_left (EvView *view) +{ + EvOrientation orientation, new_orientation; + orientation = ev_document_get_orientation (view->document); + if (orientation == EV_ORIENTATION_PORTRAIT) { + new_orientation = EV_ORIENTATION_SEASCAPE; + } else if (orientation == EV_ORIENTATION_SEASCAPE) { + new_orientation = EV_ORIENTATION_UPSIDEDOWN; + } else if (orientation == EV_ORIENTATION_UPSIDEDOWN) { + new_orientation = EV_ORIENTATION_LANDSCAPE; + } else { + new_orientation = EV_ORIENTATION_PORTRAIT; + } + ev_view_set_orientation (view, new_orientation); +} static double zoom_for_size_fit_width (int doc_width, @@ -2231,12 +2383,12 @@ 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, + 1.0, + &doc_width); + ev_page_cache_get_max_height (view->page_cache, + 1.0, + &doc_height); compute_border (view, doc_width, doc_height, &border); doc_width = doc_width * 2; @@ -2267,12 +2419,12 @@ 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, + 1.0, + &doc_width); + ev_page_cache_get_max_height (view->page_cache, + 1.0, + &doc_height); compute_border (view, doc_width, doc_height, &border); width -= (border.left + border.right + 2 * view->spacing); @@ -2370,13 +2522,6 @@ ev_view_zoom_for_size_single_page (EvView *view, ev_view_set_zoom (view, scale, FALSE); } - -void -ev_view_zoom_normal (EvView *view) -{ - ev_view_set_zoom (view, 1.0, FALSE); -} - void ev_view_set_zoom_for_size (EvView *view, int width, @@ -2404,20 +2549,130 @@ ev_view_set_zoom_for_size (EvView *view, 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; -} + 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 > view->find_result) { + 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) +{ + int n_pages, i; + + n_pages = ev_page_cache_get_n_pages (view->page_cache); -const char * -ev_view_get_find_status (EvView *view) -{ - g_return_val_if_fail (EV_IS_VIEW (view), NULL); + for (i = 0; i < n_pages; i++) { + int has_results; + int page; - return view->find_status; + page = i + view->find_page; + if (page >= n_pages) { + 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); + jump_to_find_result (view); + break; + } + } } gboolean @@ -2428,9 +2683,7 @@ ev_view_can_find_next (EvView *view) if (EV_IS_DOCUMENT_FIND (view->document)) { EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); - ev_document_doc_mutex_lock (); n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); } return n_results > 0; @@ -2443,10 +2696,8 @@ ev_view_find_next (EvView *view) int n_results, n_pages; EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); - page_cache = ev_document_get_page_cache (view->document); - ev_document_doc_mutex_lock (); + page_cache = ev_page_cache_get (view->document); n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); n_pages = ev_page_cache_get_n_pages (page_cache); @@ -2474,11 +2725,9 @@ ev_view_find_previous (EvView *view) EvDocumentFind *find = EV_DOCUMENT_FIND (view->document); EvPageCache *page_cache; - page_cache = ev_document_get_page_cache (view->document); + page_cache = ev_page_cache_get (view->document); - ev_document_doc_mutex_lock (); n_results = ev_document_find_get_n_results (find, view->current_page); - ev_document_doc_mutex_unlock (); n_pages = ev_page_cache_get_n_pages (page_cache); @@ -2499,6 +2748,366 @@ ev_view_find_previous (EvView *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; + + 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; + for (i = 0; i < n_pages; 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, + 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 *list) +{ + + /* FIXME: actually write... */ + clear_selection (view); + gtk_widget_queue_draw (GTK_WIDGET (view)); + + view->selection_info.selections = list; + ev_pixbuf_cache_set_selection_list (view->pixbuf_cache, list); +} + +static void +compute_selections (EvView *view, + GdkPoint *start, + GdkPoint *stop) +{ + GList *list; + + if (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE) + list = compute_new_selection_rect (view, start, stop); + else + 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) +{ + g_free (selection); +} + +static void +clear_selection (EvView *view) +{ + g_list_foreach (view->selection_info.selections, (GFunc)selection_free, NULL); + view->selection_info.selections = NULL; + view->selection_info.in_selection = FALSE; +} + + +void +ev_view_select_all (EvView *view) +{ + int n_pages, i; + + clear_selection (view); + + n_pages = ev_page_cache_get_n_pages (view->page_cache); + for (i = 0; i < n_pages; i++) { + int width, height; + EvViewSelection *selection; + + ev_page_cache_get_size (view->page_cache, + i, 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; + + 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); + gtk_widget_queue_draw (GTK_WIDGET (view)); +} + +static char * +get_selected_text (EvView *ev_view) +{ + GString *text; + GList *l; + + text = g_string_new (NULL); + + ev_document_doc_mutex_lock (); + + 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); + } + + ev_document_doc_mutex_unlock (); + + return g_string_free (text, FALSE); +} + +void +ev_view_copy (EvView *ev_view) +{ + GtkClipboard *clipboard; + char *text; + + if (!ev_document_can_get_text (ev_view->document)) { + return; + } + + 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); +} + +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 (!ev_document_can_get_text (ev_view->document)) { + return; + } + + 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); + + 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 { + if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (ev_view)) + gtk_clipboard_clear (clipboard); + } +} + +/*** Cursor operations ***/ + +static GdkCursor * +ev_view_create_invisible_cursor(void) +{ + GdkBitmap *empty; + GdkColor black = { 0, 0, 0, 0 }; + static char bits[] = { 0x00 }; + + empty = gdk_bitmap_create_from_data (NULL, bits, 1, 1); + + return gdk_cursor_new_from_pixmap (empty, empty, &black, &black, 0, 0); +} + +static void +ev_view_set_cursor (EvView *view, EvViewCursor new_cursor) +{ + GdkCursor *cursor = NULL; + GdkDisplay *display; + GtkWidget *widget; + + if (view->cursor == new_cursor) { + return; + } + + widget = gtk_widget_get_toplevel (GTK_WIDGET (view)); + display = gtk_widget_get_display (widget); + view->cursor = new_cursor; + + 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; + } + + if (cursor) { + gdk_window_set_cursor (widget->window, cursor); + gdk_cursor_unref (cursor); + gdk_flush(); + } +} + void ev_view_hide_cursor (EvView *view) { @@ -2511,6 +3120,7 @@ ev_view_show_cursor (EvView *view) ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL); } +/*** Enum description for usage in signal ***/ GType ev_sizing_mode_get_type (void) @@ -2527,3 +3137,4 @@ ev_sizing_mode_get_type (void) } return etype; } +