#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_LINK,
- EV_VIEW_CURSOR_WAIT
+ 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;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
- 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);
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;
- requisition->width += 2;
- requisition->height += 2;
+ 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
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,
}
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);
static void
highlight_find_results (EvView *view)
{
- EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
+ 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);
+ 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 x_offset, y_offset;
-
+ GtkBorder border;
+ gint width, height;
+ GdkRectangle area;
+ int target_width, target_height;
+
if (view->document == NULL)
return;
- x_offset = MAX (0, (widget->allocation.width -
- widget->requisition.width) / 2);
- y_offset = MAX (0, (widget->allocation.height -
- widget->requisition.height) / 2);
- gdk_draw_rectangle (view->bin_window,
- widget->style->black_gc,
- FALSE,
- x_offset,
- y_offset,
- widget->requisition.width - 1,
- widget->requisition.height - 1);
-
+ 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 + 1,
- y_offset + 1);
+ 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);
- highlight_find_results (view);
+ 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);
}
}
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)
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) {
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;
}
}
- gtk_widget_queue_draw (widget);
-
return TRUE;
}
{
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;
- 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
-find_changed_cb (EvDocument *document, EvView *view)
+set_document_page (EvView *view, int new_page)
{
- gtk_widget_queue_draw (GTK_WIDGET (view));
+ 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;
+
+ 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);
+ }
+ }
+}
+
+#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);
+ 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);
+ }
+}
+
+static void
+jump_to_find_page (EvView *view)
+{
+ 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));
- ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+
+ if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_NORMAL);
+ }
}
/*** Public API ***/
}
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,
"find_changed",
G_CALLBACK (find_changed_cb),
view);
+ }
g_signal_connect (view->document,
"changed",
G_CALLBACK (document_changed_callback),
}
}
-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);
- int old_width, old_height;
-
- ev_document_get_page_size (view->document,
- &old_width, &old_height);
-
- if (old_page != page) {
- 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;
-
- g_signal_emit (view, page_changed_signal, 0);
+ if (view->sizing_mode == sizing_mode)
+ return;
- view->has_selection = FALSE;
- ev_document_get_page_size (view->document,
- &width, &height);
- if (width != old_width || height != old_height)
- gtk_widget_queue_resize (GTK_WIDGET (view));
- }
- }
+ view->sizing_mode = sizing_mode;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
}
static void
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 (!GTK_WIDGET_REALIZED (view) || 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;
+
+ width = height = 0;
+ ev_document_get_page_size (view->document, -1, &width, &height);
+ ev_document_misc_get_page_border_size (width, height, &border);
- scale = 1.0;
- if (width != 0)
- scale = (double)GTK_WIDGET (view)->allocation.width * view->scale / width;
+ target_width = allocation_width - (view->spacing * 2 + border.left + border.right);
+ target_height = allocation_height - (view->spacing * 2 + border.top + border.bottom);
- ev_view_zoom (view, scale, FALSE);
+ if (width) {
+ double scale;
+ scale = (double)target_width * view->scale / width;
+
+ if (height * scale / view->scale > target_height)
+ scale = ((double)(target_width - vsb_width) * view->scale / width);
+
+ ev_view_zoom (view, scale, FALSE);
+ }
}
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);
+}