#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;
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
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++) {
}
}
+
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,
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) {
{
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->sizing_mode = EV_SIZING_BEST_FIT;
}
static void
}
static void
-set_document_page (EvView *view, int page)
+set_document_page (EvView *view, int new_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) {
- ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
+ if (view->cursor != EV_VIEW_CURSOR_HIDDEN) {
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_WAIT);
+ }
ev_document_set_page (view->document, page);
}
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));
view->vadjustment->lower);
}
- view->find_page = page;
- view->find_result = 0;
- update_find_status_message (view);
+ if (EV_IS_DOCUMENT_FIND (view->document)) {
+ view->find_page = page;
+ view->find_result = 0;
+ update_find_status_message (view);
+ }
}
}
static void
jump_to_find_result (EvView *view)
{
+ EvDocumentFind *find = EV_DOCUMENT_FIND (view->document);
GdkRectangle rect;
+ int n_results;
- ev_document_find_get_result (EV_DOCUMENT_FIND (view->document),
- view->find_result, &rect);
- ensure_rectangle_is_visible (view, &rect);
+ 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
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 ***/
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),
}
}
+void
+ev_view_set_mode (EvView *view,
+ EvSizingMode sizing_mode)
+{
+ if (view->sizing_mode == sizing_mode)
+ return;
+
+ view->sizing_mode = sizing_mode;
+ gtk_widget_queue_resize (GTK_WIDGET (view));
+}
+
static void
go_to_link (EvView *view, EvLink *link)
{
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 *
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);
+}