#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"
PROP_FIND_STATUS,
PROP_CONTINUOUS,
PROP_DUAL_PAGE,
- PROP_FULL_SCREEN,
+ 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[] = {
{ "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;
int spacing;
double scale;
- GtkBorder border;
- gboolean show_border;
gboolean continuous;
gboolean dual_page;
- gboolean full_screen;
+ gboolean fullscreen;
gboolean presentation;
EvSizingMode sizing_mode;
+
+ PendingScroll pending_scroll;
+ gboolean pending_resize;
};
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);
+/*** 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
{
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;
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
view_update_range_and_current_page (EvView *view)
{
-
/* Presentation trumps all other modes */
if (view->presentation) {
view->start_page = view->current_page;
view->end_page = view->current_page;
} else if (view->continuous) {
GdkRectangle current_area, unused, page_area;
+ 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) {
+ view->current_page = view->start_page;
+ ev_page_cache_set_current_page (view->page_cache, view->start_page);
}
} else {
if (view->dual_page) {
ev_pixbuf_cache_set_page_range (view->pixbuf_cache,
view->start_page,
view->end_page,
- view->scale);
+ view->scale,
+ view->selection_info.selections);
}
-/*** Virtual function implementations ***/
-
static void
-ev_view_finalize (GObject *object)
+set_scroll_adjustment (EvView *view,
+ GtkOrientation orientation,
+ GtkAdjustment *adjustment)
{
- EvView *view = EV_VIEW (object);
+ GtkAdjustment **to_set;
- LOG ("Finalize");
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ to_set = &view->hadjustment;
+ else
+ to_set = &view->vadjustment;
- g_free (view->status);
- g_free (view->find_status);
+ 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);
+ }
- G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
+ *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);
+ }
+ }
}
static void
-ev_view_destroy (GtkObject *object)
+ev_view_set_scroll_adjustments (EvView *view,
+ GtkAdjustment *hadjustment,
+ GtkAdjustment *vadjustment)
{
- EvView *view = EV_VIEW (object);
-
- 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);
+ set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
+ set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
- GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
+ on_adjustment_value_changed (NULL, view);
}
static void
-ev_view_get_offsets (EvView *view, int *x_offset, int *y_offset)
+add_scroll_binding_keypad (GtkBindingSet *binding_set,
+ guint keyval,
+ GtkScrollType scroll,
+ gboolean horizontal)
{
- EvDocument *document = view->document;
- GtkWidget *widget = GTK_WIDGET (view);
- int width, height, target_width, target_height;
+ guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
- g_return_if_fail (EV_IS_DOCUMENT (document));
+ 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);
+}
- ev_page_cache_get_size (view->page_cache,
- view->current_page,
- view->scale,
- &width, &height);
+void
+ev_view_scroll (EvView *view,
+ EvScrollType scroll)
+{
+ GtkAdjustment *adjustment;
+ double value, increment;
+ gboolean first_page = FALSE;
+ gboolean last_page = FALSE;
- *x_offset = view->spacing;
- *y_offset = view->spacing;
- target_width = width + view->border.left +
- view->border.right + view->spacing * 2;
- target_height = height + view->border.top +
- view->border.bottom + view->spacing * 2;
- *x_offset += MAX (0, (widget->allocation.width - target_width) / 2);
- *y_offset += MAX (0, (widget->allocation.height - target_height) / 2);
+ /* 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
-view_rect_to_doc_rect (EvView *view, GdkRectangle *view_rect, EvRectangle *doc_rect)
+ev_view_binding_activated (EvView *view,
+ GtkScrollType scroll,
+ gboolean horizontal)
{
- int x_offset, y_offset;
+ GtkAdjustment *adjustment;
+ double value;
- 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;
- doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
- doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
+ 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 (horizontal) {
+ adjustment = view->hadjustment;
+ } else {
+ adjustment = view->vadjustment;
+ }
+
+ value = adjustment->value;
+
+ switch (scroll) {
+ case GTK_SCROLL_STEP_BACKWARD:
+ value -= adjustment->step_increment;
+ break;
+ case GTK_SCROLL_STEP_FORWARD:
+ value += adjustment->step_increment;
+ break;
+ default:
+ break;
+ }
+
+ value = CLAMP (value, adjustment->lower,
+ adjustment->upper - adjustment->page_size);
+
+ gtk_adjustment_set_value (adjustment, value);
}
+#define MARGIN 5
+
static void
-doc_rect_to_view_rect (EvView *view, EvRectangle *doc_rect, GdkRectangle *view_rect)
+ensure_rectangle_is_visible (EvView *view, GdkRectangle *rect)
{
- int x_offset, y_offset;
+ GtkWidget *widget = GTK_WIDGET (view);
+ GtkAdjustment *adjustment;
+ int value;
- ev_view_get_offsets (view, &x_offset, &y_offset);
- view_rect->x = floor (doc_rect->x1 * view->scale) + x_offset;
- view_rect->y = floor (doc_rect->y1 * view->scale) + y_offset;
- view_rect->width = ceil (doc_rect->x2 * view->scale) + x_offset - view_rect->x;
- view_rect->height = ceil (doc_rect->y2 * view->scale) + y_offset - view_rect->y;
+ adjustment = view->vadjustment;
+
+ if (rect->y < adjustment->value) {
+ value = MAX (adjustment->lower, rect->y - MARGIN);
+ gtk_adjustment_set_value (view->vadjustment, value);
+ } else if (rect->y + rect->height >
+ adjustment->value + widget->allocation.height) {
+ value = MIN (adjustment->upper, rect->y + rect->height -
+ widget->allocation.height + MARGIN);
+ gtk_adjustment_set_value (view->vadjustment, value);
+ }
+
+ adjustment = view->hadjustment;
+
+ if (rect->x < adjustment->value) {
+ value = MAX (adjustment->lower, rect->x - MARGIN);
+ gtk_adjustment_set_value (view->hadjustment, value);
+ } else if (rect->x + rect->height >
+ adjustment->value + widget->allocation.width) {
+ value = MIN (adjustment->upper, rect->x + rect->width -
+ widget->allocation.width + MARGIN);
+ gtk_adjustment_set_value (view->hadjustment, value);
+ }
}
+/*** Geometry computations ***/
+
static void
compute_border (EvView *view, int width, int height, GtkBorder *border)
{
- if (view->show_border) {
- ev_document_misc_get_page_border_size (width, height, border);
- } else {
+ if (view->presentation) {
border->left = 0;
border->right = 0;
border->top = 0;
border->bottom = 0;
+ } else {
+ ev_document_misc_get_page_border_size (width, height, border);
}
}
-static void
-get_bounding_box_size (EvView *view, int *max_width, int *max_height)
+static void get_page_y_offset (EvView *view,
+ int page,
+ double zoom,
+ int *y_offset)
{
+ int max_width, offset;
GtkBorder border;
- int width, height;
- 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;
- }
+ g_return_if_fail (y_offset != NULL);
+ ev_page_cache_get_max_width (view->page_cache, zoom, &max_width);
- 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;
+ 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 void
-ev_view_size_request_continuous_and_dual_page (EvView *view,
- GtkRequisition *requisition)
+static gboolean
+get_page_extents (EvView *view,
+ gint page,
+ GdkRectangle *page_area,
+ GtkBorder *border)
{
- int max_width, max_height;
- int n_rows;
-
- get_bounding_box_size (view, &max_width, &max_height);
-
- n_rows = (1 + ev_page_cache_get_n_pages (view->page_cache)) / 2;
+ GtkWidget *widget;
+ int width, height;
- requisition->width = (max_width * 2) + (view->spacing * 3);
- requisition->height = max_height * n_rows + (view->spacing * (n_rows + 1));
+ widget = GTK_WIDGET (view);
- if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ /* Get the size of the page */
+ ev_page_cache_get_size (view->page_cache, page,
+ view->scale,
+ &width, &height);
+ compute_border (view, width, height, border);
+ page_area->width = width + border->left + border->right;
+ page_area->height = height + border->top + border->bottom;
+
+ if (view->presentation) {
+ page_area->x = (MAX (0, widget->allocation.width - width))/2;
+ page_area->y = (MAX (0, widget->allocation.height - height))/2;
+ } else if (view->continuous) {
+ gint max_width;
+ gint x, y;
+
+ ev_page_cache_get_max_width (view->page_cache, view->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);
+ 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;
+ 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 {
+ gint x, y;
+ if (view->dual_page) {
+ gint width_2, height_2;
+ gint max_width = width;
+ gint max_height = height;
+ GtkBorder overall_border;
+ gint other_page;
+
+ other_page = page ^ 1;
+
+ /* 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,
+ other_page,
+ view->scale,
+ &width_2, &height_2);
+ if (width_2 > width)
+ max_width = width_2;
+ if (height_2 > height)
+ max_height = height_2;
+ }
+ compute_border (view, max_width, max_height, &overall_border);
+
+ /* Find the offsets */
+ x = view->spacing;
+ y = view->spacing;
+
+ /* Adjust for being the left or right page */
+ if (page % 2 == 0)
+ x = x + max_width - width;
+ else
+ x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
+
+ y = y + (max_height - height)/2;
+
+ /* Adjust for extra allocation */
+ x = x + MAX (0, widget->allocation.width -
+ ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
+ y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
+ } else {
+ x = view->spacing;
+ y = view->spacing;
+
+ /* Adjust for extra allocation */
+ 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;
+ page_area->y = y;
+ }
+
+ return TRUE;
+}
+
+static void
+view_point_to_doc_point (EvView *view,
+ GdkPoint *view_point,
+ GdkRectangle *page_area,
+ double *doc_point_x,
+ double *doc_point_y)
+{
+ *doc_point_x = (double) (view_point->x - page_area->x) / view->scale;
+ *doc_point_y = (double) (view_point->y - page_area->y) / view->scale;
+}
+
+static void
+view_rect_to_doc_rect (EvView *view,
+ GdkRectangle *view_rect,
+ GdkRectangle *page_area,
+ EvRectangle *doc_rect)
+{
+ doc_rect->x1 = (double) (view_rect->x - page_area->x) / view->scale;
+ doc_rect->y1 = (double) (view_rect->y - page_area->y) / view->scale;
+ doc_rect->x2 = doc_rect->x1 + (double) view_rect->width / view->scale;
+ doc_rect->y2 = doc_rect->y1 + (double) view_rect->height / view->scale;
+}
+
+static void
+doc_rect_to_view_rect (EvView *view,
+ int page,
+ EvRectangle *doc_rect,
+ GdkRectangle *view_rect)
+{
+ GdkRectangle page_area;
+ GtkBorder border;
+ int width, height;
+
+ get_page_extents (view, page, &page_area, &border);
+
+ width = doc_rect->x2 - doc_rect->x1;
+ height = doc_rect->y2 - doc_rect->y1;
+ view_rect->x = floor (doc_rect->x1 * view->scale) + page_area.x;
+ view_rect->y = floor (doc_rect->y1 * view->scale) + page_area.y;
+ view_rect->width = ceil (width * view->scale);
+ view_rect->height = ceil (height * view->scale);
+}
+
+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;
+ }
+ }
+
+ *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;
+
+ 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);
+
+ 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_dual_page (EvView *view,
+ GtkRequisition *requisition)
+{
+ int max_width;
+ gint n_pages;
+ GtkBorder border;
+
+ ev_page_cache_get_max_width (view->page_cache, view->scale, &max_width);
+ compute_border (view, max_width, max_width, &border);
+
+ n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
+
+ requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
+ get_page_y_offset (view, n_pages, view->scale, &requisition->height);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
requisition->width = 1;
} else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
requisition->width = 1;
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;
{
EvView *view = EV_VIEW (widget);
- if (!GTK_WIDGET_REALIZED (widget))
- return;
-
if (view->document == NULL) {
requisition->width = 1;
requisition->height = 1;
}
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)
{
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
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
- attributes.event_mask = 0;
+ attributes.event_mask = GDK_EXPOSURE_MASK |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_SCROLL_MASK |
+ GDK_KEY_PRESS_MASK |
+ GDK_POINTER_MOTION_MASK |
+ GDK_LEAVE_NOTIFY_MASK;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes,
GDK_WA_VISUAL);
gdk_window_set_user_data (widget->window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
- gdk_window_set_background (widget->window, &widget->style->mid[widget->state]);
- attributes.x = 0;
- attributes.y = 0;
- attributes.width = MAX (widget->allocation.width, widget->requisition.width);
- attributes.height = MAX (widget->allocation.height, widget->requisition.height);
- attributes.event_mask = GDK_EXPOSURE_MASK |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_SCROLL_MASK |
- GDK_KEY_PRESS_MASK |
- GDK_POINTER_MOTION_MASK |
- GDK_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->style = gtk_style_attach (widget->style, view->bin_window);
- gdk_window_set_background (view->bin_window, &widget->style->mid[widget->state]);
-
- 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);
- }
+ if (view->presentation)
+ gdk_window_set_background (widget->window, &widget->style->black);
+ else
+ 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_DOWN ||
- 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)
return FALSE;
}
+static EvViewSelection *
+find_selection_for_page (EvView *view,
+ gint page)
+{
+ 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 gboolean
+ev_view_expose_event (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EvView *view = EV_VIEW (widget);
+ int i;
+
+ if (view->document == NULL)
+ return FALSE;
+
+ 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;
+
+ page_area.x -= view->scroll_x;
+ page_area.y -= view->scroll_y;
+
+ draw_one_page (view, i, &page_area, &border, &(event->area));
+
+ if (EV_IS_DOCUMENT_FIND (view->document))
+ highlight_find_results (view, i);
+ }
+
+ return FALSE;
+}
+
+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->selection_info.selections) {
+ clear_selection (view);
+ gtk_widget_queue_draw (widget);
+ }
+
+ 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);
+
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_motion_notify_event (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (!view->document)
+ return FALSE;
+
+ if (view->pressed_button == 1) {
+ GdkPoint point;
+
+ 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);
+
+ return TRUE;
+ } else if (view->pressed_button == 2) {
+ if (!view->drag_info.in_drag) {
+ gboolean start;
+
+ start = gtk_drag_check_threshold (widget,
+ view->drag_info.start.x,
+ view->drag_info.start.y,
+ event->x_root,
+ event->y_root);
+ view->drag_info.in_drag = start;
+ }
+
+ 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;
+ }
+ } else if (view->pressed_button <= 0) {
+ EvLink *link;
+
+ link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
+ if (link) {
+ char *msg;
+
+ msg = status_message_from_link (view, link);
+ ev_view_set_status (view, msg);
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
+ g_free (msg);
+ } else 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 ||
+ view->cursor == EV_VIEW_CURSOR_IBEAM)
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ }
+ return TRUE;
+ }
+
+ 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->selection_info.selections) {
+ ev_view_update_primary_selection (view);
+ } else if (view->document) {
+ EvLink *link;
+
+ link = get_link_at_location (view, event->x + view->scroll_x, event->y + view->scroll_y);
+ if (link) {
+ go_to_link (view, link);
+ }
+ }
+
+ return FALSE;
+}
+
+/*** Drawing ***/
-#if 0
static guint32
ev_gdk_color_to_rgb (const GdkColor *color)
{
gdk_draw_pixbuf (window, NULL, pixbuf,
0, 0,
- rect->x, rect->y,
+ rect->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
rect->width, rect->height,
GDK_RGB_DITHER_NONE,
0, 0);
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->x - EV_VIEW (widget)->scroll_x, rect->y - EV_VIEW (widget)->scroll_y,
rect->width - 1,
rect->height - 1);
g_object_unref (gc);
static void
-highlight_find_results (EvView *view)
+highlight_find_results (EvView *view, int page)
{
EvDocumentFind *find;
int i, results = 0;
find = EV_DOCUMENT_FIND (view->document);
- results = ev_document_find_get_n_results (find, view->current_page);
+ results = ev_document_find_get_n_results (find, page);
for (i = 0; i < results; i++) {
EvRectangle rectangle;
GdkRectangle view_rectangle;
guchar alpha;
- alpha = (i == view->find_result) ? 0x90 : 0x20;
- ev_document_find_get_result (find, view->current_page,
- i, &rectangle);
- doc_rect_to_view_rect (view, &rectangle, &view_rectangle);
- draw_rubberband (GTK_WIDGET (view), view->bin_window,
- &view_rectangle, alpha);
- }
-}
-#endif
-
-
-static gboolean
-get_page_extents (EvView *view,
- gint page,
- GdkRectangle *page_area,
- GtkBorder *border)
-{
- GtkWidget *widget;
- int width, height;
-
- 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,
- &width, &height);
- compute_border (view, width, height, border);
- page_area->width = width + border->left + border->right;
- page_area->height = height + border->top + border->bottom;
-
- if (view->presentation) {
- page_area->x = (MAX (0, widget->allocation.width - width))/2;
- page_area->y = (MAX (0, widget->allocation.height - height))/2;
- } else if (view->continuous) {
- gint max_width, max_height;
- gint x, y;
-
- get_bounding_box_size (view, &max_width, &max_height);
- /* Get the location of the bounding box */
- if (view->dual_page) {
- x = view->spacing + (page % 2) * (max_width + view->spacing);
- y = view->spacing + (page / 2) * (max_height + view->spacing);
- x = x + MAX (0, widget->allocation.width - (max_width * 2 + view->spacing * 3))/2;
- } else {
- x = view->spacing;
- y = view->spacing + page * (max_height + view->spacing);
- x = x + MAX (0, widget->allocation.width - (max_width + view->spacing * 2))/2;
- }
- page_area->x = x;
- page_area->y = y;
- } else {
- gint x, y;
- if (view->dual_page) {
- gint width_2, height_2;
- gint max_width = width;
- gint max_height = height;
- GtkBorder overall_border;
- gint other_page;
-
- other_page = page ^ 1;
-
- /* 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,
- view->scale,
- &width_2, &height_2);
- if (width_2 > width)
- max_width = width_2;
- if (height_2 > height)
- max_height = height_2;
- }
- compute_border (view, max_width, max_height, &overall_border);
-
- /* Find the offsets */
- x = view->spacing;
- y = view->spacing;
-
- /* Adjust for being the left or right page */
- if (page % 2 == 0)
- x = x + max_width - width;
- else
- x = x + (max_width + overall_border.left + overall_border.right) + view->spacing;
-
- y = y + (max_height - height)/2;
-
- /* Adjust for extra allocation */
- x = x + MAX (0, widget->allocation.width -
- ((max_width + overall_border.left + overall_border.right) * 2 + view->spacing * 3))/2;
- y = y + MAX (0, widget->allocation.height - (height + view->spacing * 2))/2;
+ if (i == view->find_result && page == view->find_page) {
+ alpha = 0x90;
} else {
- x = view->spacing;
- 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;
+ alpha = 0x20;
}
- page_area->x = x;
- page_area->y = y;
- }
-
- return TRUE;
+ 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
-draw_one_page (EvView *view,
- gint page,
- GdkRectangle *page_area,
- GtkBorder *border,
- GdkRectangle *expose_area)
+draw_one_page (EvView *view,
+ gint page,
+ GdkRectangle *page_area,
+ GtkBorder *border,
+ GdkRectangle *expose_area)
{
gint width, height;
- GdkPixbuf *scaled_image;
GdkPixbuf *current_pixbuf;
GdkRectangle overlap;
GdkRectangle real_page_area;
+ EvViewSelection *selection;
g_assert (view->document);
-
if (! gdk_rectangle_intersect (page_area, expose_area, &overlap))
return;
+ selection = find_selection_for_page (view, page);
ev_page_cache_get_size (view->page_cache,
page, view->scale,
&width, &height);
-
- if (view->show_border)
- 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.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);
+ ev_document_misc_paint_one_page (GTK_WIDGET(view)->window,
+ GTK_WIDGET (view),
+ page_area, border);
+
+ if (gdk_rectangle_intersect (&real_page_area, expose_area, &overlap)) {
+ GdkPixbuf *selection_pixbuf = NULL;
+ GdkPixbuf *scaled_image;
+ GdkPixbuf *scaled_selection;
+
+ current_pixbuf = ev_pixbuf_cache_get_pixbuf (view->pixbuf_cache, page);
+
+ /* Get the selection pixbuf iff we have something to draw */
+ if (current_pixbuf && view->selection_mode == EV_VIEW_SELECTION_TEXT && selection)
+ selection_pixbuf = ev_pixbuf_cache_get_selection_pixbuf (view->pixbuf_cache,
+ page,
+ view->scale);
+
+ 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);
+ }
- 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);
+ 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_bin_expose (EvView *view,
- GdkEventExpose *event)
+ev_view_finalize (GObject *object)
{
- int i;
-
- if (view->document == NULL)
- return;
-
- for (i = view->start_page; i <= view->end_page; i++) {
- GdkRectangle page_area;
- GtkBorder border;
+ EvView *view = EV_VIEW (object);
- if (! get_page_extents (view, i, &page_area, &border))
- continue;
- draw_one_page (view, i, &page_area, &border, &(event->area));
- }
+ LOG ("Finalize");
-#if 0
- if (EV_IS_DOCUMENT_FIND (view->document)) {
- highlight_find_results (view);
- }
+ g_free (view->status);
+ g_free (view->find_status);
- if (view->has_selection) {
- GdkRectangle rubberband;
+ clear_selection (view);
- 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
+ G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
}
-static gboolean
-ev_view_expose_event (GtkWidget *widget,
- GdkEventExpose *event)
+static void
+ev_view_destroy (GtkObject *object)
{
- 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);
+ EvView *view = EV_VIEW (object);
- return FALSE;
-}
-
-void
-ev_view_select_all (EvView *ev_view)
-{
- 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);
-}
-
-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;
- }
- }
-
- *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;
- view_rect_to_doc_rect (view, &selection, &view->selection);
-
- gtk_widget_queue_draw (widget);
- } else if (view->document) {
- EvLink *link;
-
- link = get_link_at_location (view, event->x, event->y);
- if (link) {
- char *msg;
-
- msg = status_message_from_link (view, link);
- ev_view_set_status (view, msg);
- ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
- g_free (msg);
- } else {
- ev_view_set_status (view, NULL);
- if (view->cursor == EV_VIEW_CURSOR_LINK) {
- ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
- }
- }
- }
-
- return TRUE;
-}
-
-/* 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 gboolean
-ev_view_button_release_event (GtkWidget *widget,
- GdkEventButton *event)
-{
- EvView *view = EV_VIEW (widget);
-
- view->pressed_button = -1;
-
- if (view->has_selection) {
- ev_view_update_primary_selection (view);
- } else if (view->document) {
- EvLink *link;
-
- link = get_link_at_location (view, event->x, event->y);
- if (link) {
- go_to_link (view, link);
- }
- }
-
- return FALSE;
-}
-
-static void
-on_adjustment_value_changed (GtkAdjustment *adjustment,
- EvView *view)
-{
- view_update_adjustments (view);
-}
-
-static void
-set_scroll_adjustment (EvView *view,
- GtkOrientation orientation,
- GtkAdjustment *adjustment)
-{
- GtkAdjustment **to_set;
-
- if (orientation == GTK_ORIENTATION_HORIZONTAL)
- to_set = &view->hadjustment;
- else
- to_set = &view->vadjustment;
-
- if (*to_set != adjustment) {
- if (*to_set) {
- g_signal_handlers_disconnect_by_func (*to_set,
- (gpointer) on_adjustment_value_changed,
- view);
- g_object_unref (*to_set);
- }
-
- *to_set = adjustment;
- view_set_adjustment_values (view, orientation);
-
- if (*to_set) {
- g_object_ref (*to_set);
- g_signal_connect (*to_set, "value_changed",
- G_CALLBACK (on_adjustment_value_changed), view);
- }
+ if (view->document) {
+ g_object_unref (view->document);
+ view->document = NULL;
}
-}
-
-static void
-ev_view_set_scroll_adjustments (EvView *view,
- GtkAdjustment *hadjustment,
- GtkAdjustment *vadjustment)
-{
- set_scroll_adjustment (view, GTK_ORIENTATION_HORIZONTAL, hadjustment);
- set_scroll_adjustment (view, GTK_ORIENTATION_VERTICAL, vadjustment);
-
- view_update_adjustments (view);
-}
-
-static void
-add_scroll_binding_keypad (GtkBindingSet *binding_set,
- guint keyval,
- GtkScrollType scroll,
- gboolean horizontal)
-{
- guint keypad_keyval = keyval - GDK_Left + GDK_KP_Left;
-
- gtk_binding_entry_add_signal (binding_set, keyval, 0,
- "scroll_view", 2,
- GTK_TYPE_SCROLL_TYPE, scroll,
- G_TYPE_BOOLEAN, horizontal);
- gtk_binding_entry_add_signal (binding_set, keypad_keyval, 0,
- "scroll_view", 2,
- GTK_TYPE_SCROLL_TYPE, scroll,
- G_TYPE_BOOLEAN, horizontal);
-}
-
-static void
-add_scroll_binding_shifted (GtkBindingSet *binding_set,
- guint keyval,
- GtkScrollType scroll_normal,
- GtkScrollType scroll_shifted,
- gboolean horizontal)
-{
- gtk_binding_entry_add_signal (binding_set, keyval, 0,
- "scroll_view", 2,
- GTK_TYPE_SCROLL_TYPE, scroll_normal,
- G_TYPE_BOOLEAN, horizontal);
- gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
- "scroll_view", 2,
- GTK_TYPE_SCROLL_TYPE, scroll_shifted,
- G_TYPE_BOOLEAN, horizontal);
-}
-
-static void
-ev_view_jump (EvView *view,
- GtkScrollType scroll)
-{
- GtkAdjustment *adjustment;
- double value, increment;
- gboolean first_page = FALSE;
- gboolean last_page = FALSE;
-
- /* Assign values for increment and vertical adjustment */
- adjustment = view->vadjustment;
- increment = adjustment->page_size * 0.75;
- value = adjustment->value;
-
- /* Assign boolean for first and last page */
- if (view->current_page == 0)
- first_page = TRUE;
- if (view->current_page == ev_page_cache_get_n_pages (view->page_cache) - 1)
- last_page = TRUE;
-
- switch (scroll) {
- case EV_SCROLL_PAGE_BACKWARD:
- /* Do not jump backwards if at the first page */
- if (value == (adjustment->lower) && first_page) {
- /* Do nothing */
- /* At the top of a page, assign the upper bound limit of previous page */
- } else if (value == (adjustment->lower)) {
- value = adjustment->upper - adjustment->page_size;
- ev_page_cache_set_current_page (view->page_cache, view->current_page - 1);
- /* Jump to the top */
- } else {
- value = MAX (value - increment, adjustment->lower);
- }
- break;
- case EV_SCROLL_PAGE_FORWARD:
- /* Do not jump forward if at the last page */
- if (value == (adjustment->upper - adjustment->page_size) && last_page) {
- /* Do nothing */
- /* At the bottom of a page, assign the lower bound limit of next page */
- } else if (value == (adjustment->upper - adjustment->page_size)) {
- value = 0;
- ev_page_cache_set_current_page (view->page_cache, view->current_page + 1);
- /* Jump to the bottom */
- } else {
- value = MIN (value + increment, adjustment->upper - adjustment->page_size);
- }
- break;
- default:
- break;
+ if (view->pixbuf_cache) {
+ g_object_unref (view->pixbuf_cache);
+ view->pixbuf_cache = NULL;
}
+ ev_view_set_scroll_adjustments (view, NULL, NULL);
- gtk_adjustment_set_value (adjustment, value);
-}
-
-static void
-ev_view_scroll_view (EvView *view,
- GtkScrollType scroll,
- gboolean horizontal)
-{
- if (scroll == GTK_SCROLL_PAGE_BACKWARD) {
- ev_page_cache_prev_page (view->page_cache);
- } else if (scroll == GTK_SCROLL_PAGE_FORWARD) {
- ev_page_cache_next_page (view->page_cache);
- } else if (scroll == EV_SCROLL_PAGE_BACKWARD || scroll == EV_SCROLL_PAGE_FORWARD) {
- ev_view_jump (view, scroll);
- } else {
- GtkAdjustment *adjustment;
- double value;
-
- if (horizontal) {
- adjustment = view->hadjustment;
- } else {
- adjustment = view->vadjustment;
- }
-
- value = adjustment->value;
-
- switch (scroll) {
- case GTK_SCROLL_STEP_BACKWARD:
- value -= adjustment->step_increment;
- break;
- case GTK_SCROLL_STEP_FORWARD:
- value += adjustment->step_increment;
- break;
- default:
- break;
- }
-
- value = CLAMP (value, adjustment->lower,
- adjustment->upper - adjustment->page_size);
-
- gtk_adjustment_set_value (adjustment, value);
- }
+ GTK_OBJECT_CLASS (ev_view_parent_class)->destroy (object);
}
static void
case PROP_DUAL_PAGE:
ev_view_set_dual_page (view, g_value_get_boolean (value));
break;
- case PROP_FULL_SCREEN:
- ev_view_set_full_screen (view, g_value_get_boolean (value));
+ case PROP_FULLSCREEN:
+ ev_view_set_fullscreen (view, g_value_get_boolean (value));
break;
case PROP_PRESENTATION:
ev_view_set_presentation (view, g_value_get_boolean (value));
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);
}
case PROP_DUAL_PAGE:
g_value_set_boolean (value, view->dual_page);
break;
- case PROP_FULL_SCREEN:
- g_value_set_boolean (value, view->full_screen);
+ case PROP_FULLSCREEN:
+ g_value_set_boolean (value, view->fullscreen);
break;
case PROP_PRESENTATION:
g_value_set_boolean (value, view->presentation);
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);
}
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,
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
- PROP_FULL_SCREEN,
- g_param_spec_boolean ("full-screen",
+ PROP_FULLSCREEN,
+ g_param_spec_boolean ("fullscreen",
"Full Screen",
- "Draw page in a full-screen fashion",
+ "Draw page in a fullscreen fashion",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
EV_SIZING_FIT_WIDTH,
G_PARAM_READWRITE));
+ 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));
+
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->show_border = TRUE;
-
- view->continuous = TRUE;
- view->dual_page = FALSE;
- view->presentation = FALSE;
- view->full_screen = FALSE;
- view->sizing_mode = EV_SIZING_FIT_WIDTH;
-}
-
-static void
-update_find_status_message (EvView *view)
-{
- char *message;
-
-// ev_document_doc_mutex_lock ();
- if (view->current_page == view->find_page) {
- int results;
-
-// ev_document_doc_mutex_lock ();
- results = ev_document_find_get_n_results
- (EV_DOCUMENT_FIND (view->document),
- view->current_page);
-// ev_document_doc_mutex_unlock ();
- /* 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;
-
- ev_document_doc_mutex_lock ();
- n_results = ev_document_find_get_n_results (find, view->current_page);
- ev_document_doc_mutex_unlock ();
-
- if (n_results > view->find_result) {
- ev_document_doc_mutex_lock ();
- ev_document_find_get_result
- (find, view->current_page, view->find_result, &rect);
- ev_document_doc_mutex_unlock ();
-
- doc_rect_to_view_rect (view, &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);
-
- for (i = 0; i < n_pages; i++) {
- int has_results;
- int page;
-
- page = i + view->find_page;
- if (page >= n_pages) {
- page = page - n_pages;
- }
-
- // ev_document_doc_mutex_lock ();
- 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;
- }
- }
+static void
+ev_view_init (EvView *view)
+{
+ GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
+
+ 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;
+
+ 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)
{
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,
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
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,
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
-static void
-ev_view_zoom (EvView *view,
- double factor,
- gboolean relative)
+void
+ev_view_set_zoom (EvView *view,
+ double factor,
+ gboolean relative)
{
double scale;
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
+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,
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)
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.
}
void
-ev_view_set_full_screen (EvView *view,
- gboolean full_screen)
+ev_view_set_fullscreen (EvView *view,
+ gboolean fullscreen)
{
g_return_if_fail (EV_IS_VIEW (view));
- full_screen = full_screen != FALSE;
+ fullscreen = fullscreen != FALSE;
- if (view->full_screen != full_screen) {
- view->full_screen = full_screen;
- 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");
+}
+
+gboolean
+ev_view_get_fullscreen (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
- g_object_notify (G_OBJECT (view), "full-screen");
+ return view->fullscreen;
}
void
presentation = presentation != FALSE;
- if (view->presentation != presentation) {
- view->presentation = presentation;
- gtk_widget_queue_resize (GTK_WIDGET (view));
+ if (view->presentation == presentation)
+ 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 (GTK_WIDGET(view)->window,
+ >K_WIDGET (view)->style->black);
+ else
+ gdk_window_set_background (GTK_WIDGET(view)->window,
+ >K_WIDGET (view)->style->mid [GTK_STATE_NORMAL]);
}
+
g_object_notify (G_OBJECT (view), "presentation");
}
+gboolean
+ev_view_get_presentation (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), FALSE);
+
+ return view->presentation;
+}
+
void
ev_view_set_sizing_mode (EvView *view,
EvSizingMode sizing_mode)
{
g_return_if_fail (EV_IS_VIEW (view));
- if (view->sizing_mode != sizing_mode) {
- view->sizing_mode = sizing_mode;
- gtk_widget_queue_resize (GTK_WIDGET (view));
- }
+ if (view->sizing_mode == sizing_mode)
+ return;
+
+ view->sizing_mode = sizing_mode;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
g_object_notify (G_OBJECT (view), "sizing-mode");
}
+EvSizingMode
+ev_view_get_sizing_mode (EvView *view)
+{
+ g_return_val_if_fail (EV_IS_VIEW (view), EV_SIZING_FREE);
+
+ return view->sizing_mode;
+}
gboolean
ev_view_can_zoom_in (EvView *view)
{
g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
- ev_view_zoom (view, ZOOM_IN_FACTOR, TRUE);
+ view->pending_scroll = SCROLL_TO_CENTER;
+ ev_view_set_zoom (view, ZOOM_IN_FACTOR, TRUE);
}
void
{
g_return_if_fail (view->sizing_mode == EV_SIZING_FREE);
- ev_view_zoom (view, ZOOM_OUT_FACTOR, TRUE);
+ 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,
return MIN (w_scale, h_scale);
}
+
+static void
+ev_view_zoom_for_size_presentation (EvView *view,
+ int width,
+ int height)
+{
+ int doc_width, doc_height;
+ gdouble scale;
+
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page,
+ 1.0,
+ &doc_width,
+ &doc_height);
+ scale = zoom_for_size_best_fit (doc_width, doc_height, width, height, 0, 0);
+ ev_view_set_zoom (view, scale, FALSE);
+}
+
static void
ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
int width,
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;
else
g_assert_not_reached ();
- ev_view_zoom (view, scale, FALSE);
+ ev_view_set_zoom (view, scale, FALSE);
}
static void
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);
else
g_assert_not_reached ();
- ev_view_zoom (view, scale, FALSE);
+ ev_view_set_zoom (view, scale, FALSE);
}
static void
else
g_assert_not_reached ();
- ev_view_zoom (view, scale, FALSE);
+ ev_view_set_zoom (view, scale, FALSE);
}
static void
else
g_assert_not_reached ();
- ev_view_zoom (view, scale, FALSE);
-}
-
-
-void
-ev_view_zoom_normal (EvView *view)
-{
- ev_view_zoom (view, 1.0, FALSE);
+ ev_view_set_zoom (view, scale, FALSE);
}
void
if (view->document == NULL)
return;
- if (view->continuous && view->dual_page)
+ if (view->presentation)
+ ev_view_zoom_for_size_presentation (view, width, height);
+ else if (view->continuous && view->dual_page)
ev_view_zoom_for_size_continuous_and_dual_page (view, width, height, vsb_width, hsb_height);
else if (view->continuous)
ev_view_zoom_for_size_continuous (view, width, height, vsb_width, hsb_height);
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
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;
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);
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);
gtk_widget_queue_draw (GTK_WIDGET (view));
}
}
+
+/*** Selections ***/
+
+/* compute_new_selection_rect/text calculates the area currently selected by
+ * view_rect. each handles a different mode;
+ */
+static GList *
+compute_new_selection_rect (EvView *view,
+ GdkPoint *start,
+ GdkPoint *stop)
+{
+ GdkRectangle view_rect;
+ int n_pages, i;
+ GList *list = NULL;
+
+ g_assert (view->selection_mode == EV_VIEW_SELECTION_RECTANGLE);
+
+ view_rect.x = MIN (start->x, stop->x);
+ view_rect.y = MIN (start->y, stop->y);
+ view_rect.width = MAX (start->x, stop->x) - view_rect.x;
+ view_rect.width = MAX (start->y, stop->y) - view_rect.y;
+
+ n_pages = ev_page_cache_get_n_pages (view->page_cache);
+
+ for (i = 0; i < n_pages; i++) {
+ GdkRectangle page_area;
+ GtkBorder border;
+
+ if (get_page_extents (view, i, &page_area, &border)) {
+ GdkRectangle overlap;
+
+ if (gdk_rectangle_intersect (&page_area, &view_rect, &overlap)) {
+ EvViewSelection *selection;
+
+ selection = g_new0 (EvViewSelection, 1);
+ selection->page = i;
+ view_rect_to_doc_rect (view, &overlap, &page_area,
+ &(selection->rect));
+
+ list = g_list_append (list, selection);
+ }
+ }
+ }
+
+ return list;
+}
+
+static gboolean
+gdk_rectangle_point_in (GdkRectangle *rectangle,
+ GdkPoint *point)
+{
+ return rectangle->x <= point->x &&
+ rectangle->y <= point->y &&
+ point->x < rectangle->x + rectangle->width &&
+ point->y < rectangle->y + rectangle->height;
+}
+
+static GList *
+compute_new_selection_text (EvView *view,
+ GdkPoint *start,
+ GdkPoint *stop)
+{
+ int n_pages, i, first, last;
+ GList *list = NULL;
+ EvViewSelection *selection;
+ gint width, height;
+
+ 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)
{
ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
}
+/*** Enum description for usage in signal ***/
GType
ev_sizing_mode_get_type (void)
}
return etype;
}
+
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff