#include "ev-marshal.h"
#include "ev-view.h"
#include "ev-document-find.h"
+#include "ev-document-misc.h"
+#include "ev-debug.h"
#define EV_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_VIEW, EvViewClass))
#define EV_IS_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_VIEW))
typedef enum {
EV_VIEW_CURSOR_NORMAL,
- EV_VIEW_CURSOR_HAND
+ EV_VIEW_CURSOR_LINK,
+ EV_VIEW_CURSOR_WAIT,
+ EV_VIEW_CURSOR_HIDDEN
} EvViewCursor;
+#define ZOOM_IN_FACTOR 1.2
+#define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
+
+#define MIN_SCALE 0.05409
+#define MAX_SCALE 18.4884
+
+/* FIXME: temporarily setting the epsilon very high until we figure out how to
+ * constrain the size of the window to a pixel width, instead of to the zoom
+ * level */
+#define ZOOM_EPSILON 1e-2
+
+
struct _EvView {
GtkWidget parent_instance;
EvDocument *document;
- EvHistory *history;
GdkWindow *bin_window;
gboolean pressed_button;
gboolean has_selection;
+ GdkPoint selection_start;
GdkRectangle selection;
EvViewCursor cursor;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
- GArray *find_results;
- int results_on_this_page;
- int next_page_with_result;
- double find_percent_complete;
+ int find_page;
+ int find_result;
+ int spacing;
double scale;
+ EvSizingMode sizing_mode;
};
struct _EvViewClass {
{
EvView *view = EV_VIEW (object);
+ LOG ("Finalize");
+
if (view->document)
g_object_unref (view->document);
- if (view->history)
- g_object_unref (view->history);
-
ev_view_set_scroll_adjustments (view, NULL, NULL);
- g_array_free (view->find_results, TRUE);
- view->find_results = NULL;
-
G_OBJECT_CLASS (ev_view_parent_class)->finalize (object);
}
GtkRequisition *requisition)
{
EvView *view = EV_VIEW (widget);
+ GtkBorder border;
+ gint width, height;
- if (GTK_WIDGET_REALIZED (widget)) {
- if (view->document) {
- ev_document_get_page_size (view->document,
- &requisition->width,
- &requisition->height);
- } else {
- requisition->width = 10;
- requisition->height = 10;
- }
+ if (! GTK_WIDGET_REALIZED (widget))
+ return;
+
+ if (! view->document) {
+ requisition->width = 1;
+ requisition->height = 1;
+ return;
+ }
+
+ ev_document_get_page_size (view->document, -1,
+ &width, &height);
+ ev_document_misc_get_page_border_size (width, height, &border);
+
+ switch (view->sizing_mode) {
+ case EV_SIZING_BEST_FIT:
+ requisition->width = MIN_SCALE * ((float) width) / view->scale;
+ requisition->height = MIN_SCALE * ((float) height) / view->scale;
+ break;
+ case EV_SIZING_FIT_WIDTH:
+ requisition->width = MIN_SCALE * ((float) width) / view->scale;
+ requisition->height = height + border.top + border.bottom;
+ requisition->height += view->spacing * 2;
+ break;
+ case EV_SIZING_FREE:
+ requisition->width = width + border.left + border.right;
+ requisition->height = height + border.top + border.bottom;
+ requisition->width += view->spacing * 2;
+ requisition->height += view->spacing * 2;
+ break;
}
-
}
static void
}
}
-static void
-update_window_backgrounds (EvView *view)
-{
- GtkWidget *widget = GTK_WIDGET (view);
-
- if (GTK_WIDGET_REALIZED (view)) {
- gdk_window_set_background (view->bin_window,
- &widget->style->base[GTK_WIDGET_STATE (widget)]);
- }
-}
-
static void
ev_view_realize (GtkWidget *widget)
{
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
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;
GDK_BUTTON_RELEASE_MASK |
GDK_SCROLL_MASK |
GDK_KEY_PRESS_MASK |
- GDK_POINTER_MOTION_MASK;
+ GDK_POINTER_MOTION_MASK |
+ GDK_LEAVE_NOTIFY_MASK;
view->bin_window = gdk_window_new (widget->window,
&attributes,
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) {
ev_document_set_target (view->document, view->bin_window);
*/
gtk_widget_queue_resize (widget);
}
-
- update_window_backgrounds (view);
}
static void
GTK_WIDGET_CLASS (ev_view_parent_class)->unrealize (widget);
}
-static void
-ev_view_style_set (GtkWidget *widget,
- GtkStyle *previous_style)
-{
- update_window_backgrounds (EV_VIEW (widget));
-}
-
-static void
-ev_view_state_changed (GtkWidget *widget,
- GtkStateType previous_state)
-{
- update_window_backgrounds (EV_VIEW (widget));
-}
-
static guint32
ev_gdk_color_to_rgb (const GdkColor *color)
{
}
static void
-draw_rubberband (GtkWidget *widget, GdkWindow *window, const GdkRectangle *rect)
+draw_rubberband (GtkWidget *widget, GdkWindow *window,
+ const GdkRectangle *rect, guchar alpha)
{
GdkGC *gc;
GdkPixbuf *pixbuf;
guint fill_color;
fill_color_gdk = gdk_color_copy (>K_WIDGET (widget)->style->base[GTK_STATE_SELECTED]);
- fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | 0x40;
+ fill_color = ev_gdk_color_to_rgb (fill_color_gdk) << 8 | alpha;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
rect->width, rect->height);
gdk_color_free (fill_color_gdk);
}
+static void
+highlight_find_results (EvView *view)
+{
+ EvDocumentFind *find;
+ int i, results;
+
+ g_return_if_fail (EV_IS_DOCUMENT_FIND (view->document));
+
+ find = EV_DOCUMENT_FIND (view->document);
+
+ results = ev_document_find_get_n_results (find);
+
+ for (i = 0; i < results; i++) {
+ GdkRectangle rectangle;
+ guchar alpha;
+
+ alpha = (i == view->find_result) ? 0x90 : 0x20;
+ ev_document_find_get_result (find, i, &rectangle);
+ draw_rubberband (GTK_WIDGET (view), view->bin_window,
+ &rectangle, alpha);
+ }
+}
+
+
static void
expose_bin_window (GtkWidget *widget,
GdkEventExpose *event)
{
EvView *view = EV_VIEW (widget);
- int i;
- int current_page;
- const EvFindResult *results;
-
+ int x_offset, y_offset;
+ GtkBorder border;
+ gint width, height;
+ GdkRectangle area;
+ int target_width, target_height;
+
if (view->document == NULL)
return;
+
+ ev_document_get_page_size (view->document, -1,
+ &width, &height);
+ ev_document_misc_get_page_border_size (width, height, &border);
+ x_offset = view->spacing;
+ y_offset = view->spacing;
+ target_width = width + border.left + border.right + view->spacing * 2;
+ target_height = height + border.top + 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);
+
+ /* Paint the frame */
+ area.x = x_offset;
+ area.y = y_offset;
+ area.width = width + border.left + border.right;
+ area.height = height + border.top + border.bottom;
+ ev_document_misc_paint_one_page (view->bin_window, widget, &area, &border);
+
+ /* Render the document itself */
+ ev_document_set_page_offset (view->document,
+ x_offset + border.left,
+ y_offset + border.top);
+
+ LOG ("Render area %d %d %d %d", event->area.x, event->area.y,
+ event->area.width, event->area.height);
+
ev_document_render (view->document,
event->area.x, event->area.y,
event->area.width, event->area.height);
- results = (EvFindResult*) view->find_results->data;
- current_page = ev_document_get_page (view->document);
- i = 0;
- while (i < view->find_results->len) {
-#if 0
- g_printerr ("highlighting result %d page %d at %d,%d %dx%d\n",
- i, results[i].page_num,
- results[i].highlight_area.x,
- results[i].highlight_area.y,
- results[i].highlight_area.width,
- results[i].highlight_area.height);
-#endif
- if (results[i].page_num == current_page)
- draw_rubberband (widget, view->bin_window,
- &results[i].highlight_area);
- ++i;
- }
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
+ highlight_find_results (view);
+ }
if (view->has_selection) {
- draw_rubberband (widget, view->bin_window, &view->selection);
+ draw_rubberband (widget, view->bin_window,
+ &view->selection, 0x40);
}
}
gtk_widget_queue_draw (widget);
}
- view->selection.x = event->x;
- view->selection.y = event->y;
- view->selection.width = 0;
- view->selection.height = 0;
+ view->selection_start.x = event->x;
+ view->selection_start.y = event->y;
break;
}
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 unsigned 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;
- GtkWidget *widget = GTK_WIDGET (view);
+ 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_HAND:
- cursor = gdk_cursor_new_for_display
- (gdk_display_get_default(), GDK_HAND2);
- gdk_window_set_cursor (widget->window, cursor);
- gdk_cursor_unref (cursor);
+ 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;
+
}
- view->cursor = new_cursor;
+ if (cursor) {
+ gdk_window_set_cursor (widget->window, cursor);
+ gdk_cursor_unref (cursor);
+ gdk_flush();
+ }
}
static gboolean
if (view->pressed_button > 0) {
view->has_selection = TRUE;
- view->selection.x = MIN (view->selection.x, event->x);
- view->selection.y = MIN (view->selection.y, event->y);
- view->selection.width = ABS (view->selection.x - event->x) + 1;
- view->selection.height = ABS (view->selection.y - event->y) + 1;
+ view->selection.x = MIN (view->selection_start.x, event->x);
+ view->selection.y = MIN (view->selection_start.y, event->y);
+ view->selection.width = ABS (view->selection_start.x - event->x) + 1;
+ view->selection.height = ABS (view->selection_start.y - event->y) + 1;
+
+ gtk_widget_queue_draw (widget);
} else if (view->document) {
EvLink *link;
msg = status_message_from_link (link);
ev_view_set_status (view, msg);
- ev_view_set_cursor (view, EV_VIEW_CURSOR_HAND);
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
g_free (msg);
g_object_unref (link);
} else {
ev_view_set_status (view, NULL);
- ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ if (view->cursor == EV_VIEW_CURSOR_LINK) {
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ }
}
}
- gtk_widget_queue_draw (widget);
-
return TRUE;
}
widget_class->size_allocate = ev_view_size_allocate;
widget_class->realize = ev_view_realize;
widget_class->unrealize = ev_view_unrealize;
- widget_class->style_set = ev_view_style_set;
- widget_class->state_changed = ev_view_state_changed;
gtk_object_class->destroy = ev_view_destroy;
class->set_scroll_adjustments = ev_view_set_scroll_adjustments;
static void
ev_view_init (EvView *view)
{
- static const GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
-
GTK_WIDGET_SET_FLAGS (view, GTK_CAN_FOCUS);
+ view->spacing = 10;
view->scale = 1.0;
view->pressed_button = -1;
view->cursor = EV_VIEW_CURSOR_NORMAL;
-
- gtk_widget_modify_bg (GTK_WIDGET (view), GTK_STATE_NORMAL, &white);
-
- view->find_results = g_array_new (FALSE,
- FALSE,
- sizeof (EvFindResult));
- view->results_on_this_page = 0;
- view->next_page_with_result = 0;
+ view->sizing_mode = EV_SIZING_BEST_FIT;
}
-static char *
-ev_view_get_find_status_message (EvView *view)
+static void
+update_find_status_message (EvView *view)
{
- if (view->find_results->len == 0) {
- if (view->find_percent_complete >= (1.0 - 1e-10)) {
- return g_strdup (_("Not found"));
+ char *message;
+
+ if (ev_document_get_page (view->document) == view->find_page) {
+ int results;
+
+ results = ev_document_find_get_n_results
+ (EV_DOCUMENT_FIND (view->document));
+
+ message = g_strdup_printf (_("%d found on this page"),
+ 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 {
- return g_strdup_printf (_("%3d%% remaining to search"),
- (int) ((1.0 - view->find_percent_complete) * 100));
+ message = g_strdup_printf (_("%3d%% remaining to search"),
+ (int) ((1.0 - percent) * 100));
}
- } else if (view->results_on_this_page == 0) {
- g_assert (view->next_page_with_result != 0);
- return g_strdup_printf (_("Found on page %d"),
- view->next_page_with_result);
- } else {
- return g_strdup_printf (_("%d found on this page"),
- view->results_on_this_page);
+
}
+
+ ev_view_set_find_status (view, message);
+ g_free (message);
}
static void
-update_find_results (EvView *view)
+set_document_page (EvView *view, int new_page)
{
- const EvFindResult *results;
- int i;
- int on_this_page;
- int next_page_with_result;
- int earliest_page_with_result;
- int current_page;
- gboolean counts_changed;
-
- results = (EvFindResult*) view->find_results->data;
- current_page = ev_document_get_page (view->document);
- next_page_with_result = 0;
- on_this_page = 0;
- earliest_page_with_result = 0;
-
- i = 0;
- while (i < view->find_results->len) {
- if (results[i].page_num == current_page) {
- ++on_this_page;
- } else {
- int delta = results[i].page_num - current_page;
+ int page;
+ int pages;
+
+ pages = ev_document_get_n_pages (view->document);
+ page = CLAMP (new_page, 1, pages);
+
+ if (view->document) {
+ int old_page = ev_document_get_page (view->document);
+ int old_width, old_height;
+
+ ev_document_get_page_size (view->document,
+ -1,
+ &old_width, &old_height);
+
+ if (old_page != page) {
+ if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
+ }
+ ev_document_set_page (view->document, page);
+ }
+
+ if (old_page != ev_document_get_page (view->document)) {
+ int width, height;
- if (delta > 0 && /* result on later page */
- (next_page_with_result == 0 ||
- results[i].page_num < next_page_with_result))
- next_page_with_result = results[i].page_num;
-
- if (delta < 0 && /* result on a previous page */
- (earliest_page_with_result == 0 ||
- results[i].page_num < earliest_page_with_result))
- earliest_page_with_result = results[i].page_num;
+ g_signal_emit (view, page_changed_signal, 0);
+
+ view->has_selection = FALSE;
+ ev_document_get_page_size (view->document,
+ -1,
+ &width, &height);
+ if (width != old_width || height != old_height)
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+
+ gtk_adjustment_set_value (view->vadjustment,
+ view->vadjustment->lower);
+ }
+
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
+ view->find_page = page;
+ view->find_result = 0;
+ update_find_status_message (view);
}
- ++i;
}
+}
- /* If earliest page is just the current page, there is no earliest page */
- if (earliest_page_with_result == current_page)
- earliest_page_with_result = 0;
-
- /* If no next page, then wrap and the wrapped page is the next page */
- if (next_page_with_result == 0)
- next_page_with_result = earliest_page_with_result;
-
- counts_changed = FALSE;
- if (on_this_page != view->results_on_this_page ||
- next_page_with_result != view->next_page_with_result) {
- view->results_on_this_page = on_this_page;
- view->next_page_with_result = next_page_with_result;
- counts_changed = TRUE;
+#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);
}
- if (counts_changed ||
- view->find_results->len == 0) {
- char *message;
+ adjustment = view->hadjustment;
- message = ev_view_get_find_status_message (view);
- ev_view_set_find_status (view, message);
- g_free (message);
+ 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
-found_results_callback (EvDocument *document,
- const EvFindResult *results,
- int n_results,
- double percent_complete,
- void *data)
+jump_to_find_result (EvView *view)
{
- EvView *view = EV_VIEW (data);
-
- g_array_set_size (view->find_results, 0);
-
- if (n_results > 0)
- g_array_append_vals (view->find_results,
- results, n_results);
-
-#if 0
- {
- int i;
-
- g_printerr ("%d results %d%%: ", n_results,
- (int) (percent_complete * 100));
- i = 0;
- while (i < n_results) {
- g_printerr ("%d ", results[i].page_num);
- ++i;
- }
- g_printerr ("\n");
- }
-#endif
-
- view->find_percent_complete = percent_complete;
- update_find_results (view);
-
- gtk_widget_queue_draw (GTK_WIDGET (view));
+ EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
+ GdkRectangle rect;
+ int n_results;
+
+ n_results = ev_document_find_get_n_results (find);
+
+ if (n_results > view->find_result) {
+ ev_document_find_get_result
+ (find, view->find_result, &rect);
+ ensure_rectangle_is_visible (view, &rect);
+ }
}
-/*** Public API ***/
-
-GtkWidget*
-ev_view_new (void)
+static void
+jump_to_find_page (EvView *view)
{
- return g_object_new (EV_TYPE_VIEW, NULL);
+ int n_pages, i;
+
+ n_pages = ev_document_get_n_pages (view->document);
+
+ 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;
+ }
+
+ 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) {
+ set_document_page (view, page);
+ jump_to_find_result (view);
+ break;
+ }
+ }
+}
+
+static void
+find_changed_cb (EvDocument *document, int page, EvView *view)
+{
+ jump_to_find_page (view);
+ jump_to_find_result (view);
+ update_find_status_message (view);
+
+ if (ev_document_get_page (document) == page) {
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ }
}
static void
EvView *view)
{
gtk_widget_queue_draw (GTK_WIDGET (view));
+
+ if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ }
+}
+
+/*** Public API ***/
+
+GtkWidget*
+ev_view_new (void)
+{
+ return g_object_new (EV_TYPE_VIEW, NULL);
}
void
g_return_if_fail (EV_IS_VIEW (view));
if (document != view->document) {
- int old_page = ev_view_get_page (view);
-
if (view->document) {
g_signal_handlers_disconnect_by_func (view->document,
- found_results_callback,
+ find_changed_cb,
view);
- g_array_set_size (view->find_results, 0);
- view->results_on_this_page = 0;
- view->next_page_with_result = 0;
-
g_object_unref (view->document);
}
view->document = document;
+ view->find_page = 1;
+ view->find_result = 0;
if (view->document) {
g_object_ref (view->document);
- if (EV_IS_DOCUMENT_FIND (view->document))
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
g_signal_connect (view->document,
- "found",
- G_CALLBACK (found_results_callback),
+ "find_changed",
+ G_CALLBACK (find_changed_cb),
view);
+ }
g_signal_connect (view->document,
"changed",
G_CALLBACK (document_changed_callback),
gtk_widget_queue_resize (GTK_WIDGET (view));
- if (old_page != ev_view_get_page (view))
- g_signal_emit (view, page_changed_signal, 0);
+ g_signal_emit (view, page_changed_signal, 0);
}
}
-static void
-set_document_page (EvView *view, int page)
+void
+ev_view_set_mode (EvView *view,
+ EvSizingMode sizing_mode)
{
- if (view->document) {
- int old_page = ev_document_get_page (view->document);
- if (old_page != page)
- ev_document_set_page (view->document, page);
- if (old_page != ev_document_get_page (view->document)) {
- g_signal_emit (view, page_changed_signal, 0);
+ if (view->sizing_mode == sizing_mode)
+ return;
- view->find_percent_complete = 0.0;
- update_find_results (view);
- }
- }
+ view->sizing_mode = sizing_mode;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
}
static void
void
ev_view_go_to_link (EvView *view, EvLink *link)
{
- EvLinkType type;
-
go_to_link (view, link);
-
- type = ev_link_get_link_type (link);
- if (type == EV_LINK_TYPE_PAGE) {
- ev_history_add_link (view->history, link);
- }
-}
-
-static void
-go_to_index (EvView *view, int index)
-{
- EvLink *link;
-
- link = ev_history_get_link_nth (view->history, index);
- g_return_if_fail (link != NULL);
-
- go_to_link (view, link);
-}
-
-gboolean
-ev_view_can_go_back (EvView *view)
-{
- int index, n;
-
- g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
-
- index = ev_history_get_current_index (view->history);
- n = ev_history_get_n_links (view->history);
-
- if (n > 0) {
- return index != MAX (0, index - 1);
- } else {
- return FALSE;
- }
-}
-
-void
-ev_view_go_back (EvView *view)
-{
- int index, n;
-
- g_return_if_fail (EV_IS_HISTORY (view->history));
-
- index = ev_history_get_current_index (view->history);
- n = ev_history_get_n_links (view->history);
-
- if (n > 0) {
- index = MAX (0, index - 1);
- ev_history_set_current_index (view->history, index);
- }
-}
-
-gboolean
-ev_view_can_go_forward (EvView *view)
-{
- int index, n;
-
- g_return_val_if_fail (EV_IS_HISTORY (view->history), FALSE);
-
- index = ev_history_get_current_index (view->history);
- n = ev_history_get_n_links (view->history);
-
- if (n > 0) {
- return index != MIN (n - 1, index + 1);
- } else {
- return FALSE;
- }
}
-void
-ev_view_go_forward (EvView *view)
-{
- int index, n;
-
- g_return_if_fail (EV_IS_HISTORY (view->history));
-
- index = ev_history_get_current_index (view->history);
- n = ev_history_get_n_links (view->history);
-
- if (n > 0) {
- index = MIN (n - 1, index + 1);
- ev_history_set_current_index (view->history, index);
- }
-}
-
-
void
ev_view_set_page (EvView *view,
int page)
{
g_return_if_fail (EV_IS_VIEW (view));
- g_return_if_fail (EV_IS_HISTORY (view->history));
set_document_page (view, page);
- ev_history_add_page (view->history, page);
}
int
return 1;
}
-#define ZOOM_IN_FACTOR 1.2
-#define ZOOM_OUT_FACTOR (1.0/ZOOM_IN_FACTOR)
-
-#define MIN_SCALE 0.05409
-#define MAX_SCALE 18.4884
-
static void
ev_view_zoom (EvView *view,
double factor,
else
scale = factor;
- view->scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
+ scale = CLAMP (scale, MIN_SCALE, MAX_SCALE);
+
+ if (ABS (scale - view->scale) < ZOOM_EPSILON)
+ return;
+
+ view->scale = scale;
ev_document_set_scale (view->document, view->scale);
ev_view_zoom (view, 1.0, FALSE);
}
+/* Unfortunately this is not idempotent (!) (numerical stability
+ * issues because width and height are rounded) */
void
-ev_view_best_fit (EvView *view)
+ev_view_best_fit (EvView *view, int allocation_width, int allocation_height)
{
- double scale;
+ int target_width, target_height;
int width, height;
+ GtkBorder border;
+
+ if (view->document == NULL)
+ return;
width = height = 0;
- ev_document_get_page_size (view->document, &width, &height);
+ /* This is the bad part. You could make it stable by doing
+ * ev_document_set_scale 1.0. But at least with pdf this means
+ * redrawing the whole page */
+ ev_document_get_page_size (view->document, -1, &width, &height);
+ /* FIXME: The border size isn't constant. Ugh. Still, if we have extra
+ * space, we just cut it from the border */
+ ev_document_misc_get_page_border_size (width, height, &border);
+
+ target_width = allocation_width - (view->spacing * 2 + border.left + border.right);
+ target_height = allocation_height - (view->spacing * 2 + border.top + border.bottom);
+
+ LOG ("Best fit %d %d", allocation_width, allocation_height);
- scale = 1.0;
if (width != 0 && height != 0) {
+ double scale;
double scale_w, scale_h;
- scale_w = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
- scale_h = (double)GTK_WIDGET (view)->allocation.height * view->scale / height;
+ scale_w = (double)target_width * view->scale / width;
+ scale_h = (double)target_height * view->scale / height;
scale = (scale_w < scale_h) ? scale_w : scale_h;
+
+ ev_view_zoom (view, scale, FALSE);
}
- ev_view_zoom (view, scale, FALSE);
}
void
-ev_view_fit_width (EvView *view)
+ev_view_fit_width (EvView *view, int allocation_width, int allocation_height,
+ int vsb_width)
{
- double scale = 1.0;
- int width;
+ int target_width, target_height;
+ int width, height;
+ GtkBorder border;
- width = 0;
- ev_document_get_page_size (view->document, &width, NULL);
+ if (view->document == NULL)
+ return;
- scale = 1.0;
- if (width != 0)
- scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
+ width = height = 0;
+ ev_document_get_page_size (view->document, -1, &width, &height);
+ ev_document_misc_get_page_border_size (width, height, &border);
- ev_view_zoom (view, scale, FALSE);
-}
+ target_width = allocation_width - (view->spacing * 2 + border.left + border.right);
+ target_height = allocation_height - (view->spacing * 2 + border.top + border.bottom);
-static void
-history_index_changed_cb (EvHistory *history,
- GParamSpec *pspec,
- EvView *view)
-{
- int index;
+ if (width) {
+ double scale;
+ scale = (double)target_width * view->scale / width;
- index = ev_history_get_current_index (history);
- go_to_index (view, index);
-}
+ if (height * scale / view->scale > target_height)
+ scale = ((double)(target_width - vsb_width) * view->scale / width);
-void
-ev_view_set_history (EvView *view,
- EvHistory *history)
-{
- if (view->history) {
- g_object_unref (view->history);
+ ev_view_zoom (view, scale, FALSE);
}
-
- view->history = g_object_ref (history);
- ev_history_add_page (view->history, ev_view_get_page (view));
-
- g_signal_connect (view->history, "notify::index",
- G_CALLBACK (history_index_changed_cb),
- view);
}
const char *
return view->find_status;
}
+void
+ev_view_find_next (EvView *view)
+{
+ int n_results, n_pages;
+ EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
+
+ n_results = ev_document_find_get_n_results (find);
+ n_pages = ev_document_get_n_pages (view->document);
+
+ view->find_result++;
+
+ if (view->find_result >= n_results) {
+ view->find_result = 0;
+ view->find_page++;
+
+ if (view->find_page > n_pages) {
+ view->find_page = 1;
+ }
+
+ jump_to_find_page (view);
+ } else {
+ jump_to_find_result (view);
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ }
+}
+
+void
+ev_view_find_previous (EvView *view)
+{
+ int n_results, n_pages;
+ EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
+
+ n_results = ev_document_find_get_n_results (find);
+ n_pages = ev_document_get_n_pages (view->document);
+
+ view->find_result--;
+
+ if (view->find_result < 0) {
+ view->find_result = 0;
+ view->find_page--;
+ if (view->find_page < 1) {
+ view->find_page = n_pages;
+ }
+
+ jump_to_find_page (view);
+ } else {
+ jump_to_find_result (view);
+ gtk_widget_queue_draw (GTK_WIDGET (view));
+ }
+}
+void
+ev_view_hide_cursor (EvView *view)
+{
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_HIDDEN);
+}
+
+void
+ev_view_show_cursor (EvView *view)
+{
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_LINK);
+}