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authorWilliam Jon McCann <[email protected]>2012-12-29 16:04:13 +0100
committerraveit65 <[email protected]>2017-08-31 13:28:21 +0200
commit3e3b8bad7b5b272e3a535e7b3fe22c04fc722a78 (patch)
tree1f315f036f04a69ab0252845ca053388f356b3fd
parenta75c067b9143e0fd2223647e4414227b4613619b (diff)
downloadatril-3e3b8bad7b5b272e3a535e7b3fe22c04fc722a78.tar.bz2
atril-3e3b8bad7b5b272e3a535e7b3fe22c04fc722a78.tar.xz
libview: Add new zoom mode that optimizes for readability
This "Automatic" zoom mode will use fit width when the window is smaller than 100% of the actual page size and then use the actual page size up to the point the window is large enough to hold two entire pages side by side. https://bugzilla.gnome.org/show_bug.cgi?id=689468 origin commit: https://git.gnome.org/browse/evince/commit/?h=gnome-3-10&id=0cad875
Diffstat
-rw-r--r--libview/ev-document-model.h1
-rw-r--r--libview/ev-view.c119
2 files changed, 101 insertions, 19 deletions
diff --git a/libview/ev-document-model.h b/libview/ev-document-model.h
index 4c81c49c..fdec1433 100644
--- a/libview/ev-document-model.h
+++ b/libview/ev-document-model.h
@@ -38,6 +38,7 @@ typedef enum {
EV_SIZING_BEST_FIT = EV_SIZING_FIT_PAGE, /* Deprecated */
EV_SIZING_FIT_WIDTH,
EV_SIZING_FREE,
+ EV_SIZING_AUTOMATIC,
} EvSizingMode;
typedef struct _EvDocumentModel EvDocumentModel;
diff --git a/libview/ev-view.c b/libview/ev-view.c
index 60c1a1ac..0b05b4a9 100644
--- a/libview/ev-view.c
+++ b/libview/ev-view.c
@@ -229,6 +229,11 @@ static double zoom_for_size_fit_page (gdouble doc_width,
gdouble doc_height,
int target_width,
int target_height);
+static double zoom_for_size_automatic (GdkScreen *screen,
+ gdouble doc_width,
+ gdouble doc_height,
+ int target_width,
+ int target_height);
static void ev_view_zoom_for_size (EvView *view,
int width,
int height);
@@ -3173,6 +3178,7 @@ ev_view_size_request_continuous_dual_page (EvView *view,
switch (view->sizing_mode) {
case EV_SIZING_FIT_WIDTH:
case EV_SIZING_FIT_PAGE:
+ case EV_SIZING_AUTOMATIC:
requisition->width = 1;
break;
@@ -3202,6 +3208,7 @@ ev_view_size_request_continuous (EvView *view,
switch (view->sizing_mode) {
case EV_SIZING_FIT_WIDTH:
case EV_SIZING_FIT_PAGE:
+ case EV_SIZING_AUTOMATIC:
requisition->width = 1;
break;
@@ -3296,7 +3303,8 @@ ev_view_size_request (GtkWidget *widget,
*/
if (!view->internal_size_request &&
(view->sizing_mode == EV_SIZING_FIT_WIDTH ||
- view->sizing_mode == EV_SIZING_FIT_PAGE)) {
+ view->sizing_mode == EV_SIZING_FIT_PAGE ||
+ view->sizing_mode == EV_SIZING_AUTOMATIC)) {
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
@@ -3362,7 +3370,8 @@ ev_view_size_allocate (GtkWidget *widget,
return;
if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
- view->sizing_mode == EV_SIZING_FIT_PAGE) {
+ view->sizing_mode == EV_SIZING_FIT_PAGE ||
+ view->sizing_mode == EV_SIZING_AUTOMATIC) {
GtkRequisition req;
ev_view_zoom_for_size (view,
@@ -5890,6 +5899,45 @@ zoom_for_size_fit_page (gdouble doc_width,
return MIN (w_scale, h_scale);
}
+static double
+zoom_for_size_automatic (GdkScreen *screen,
+ gdouble doc_width,
+ gdouble doc_height,
+ int target_width,
+ int target_height)
+{
+#if GTK_CHECK_VERSION (3, 22, 0)
+ GdkMonitor *monitor;
+ GdkDisplay *display;
+#else
+ gint monitor;
+#endif
+ double fit_width_scale;
+ double scale;
+
+ fit_width_scale = zoom_for_size_fit_width (doc_width, doc_height, target_width, target_height);
+
+ if (doc_height < doc_width) {
+ double fit_height_scale;
+
+ fit_height_scale = zoom_for_size_fit_height (doc_width, doc_height, target_width, target_height);
+ scale = MIN (fit_width_scale, fit_height_scale);
+ } else {
+ double actual_scale;
+
+#if GTK_CHECK_VERSION (3, 22, 0)
+ display = gdk_screen_get_display (screen);
+ monitor = gdk_display_get_primary_monitor (display);
+#else
+ monitor = gdk_screen_get_primary_monitor (screen);
+#endif
+ actual_scale = ev_document_misc_get_screen_dpi (screen, monitor) / 72.0;
+ scale = MIN (fit_width_scale, actual_scale);
+ }
+
+ return scale;
+}
+
static void
ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
int width,
@@ -5917,12 +5965,20 @@ ev_view_zoom_for_size_continuous_and_dual_page (EvView *view,
sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
- if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ switch (view->sizing_mode) {
+ case EV_SIZING_FIT_WIDTH:
scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height);
- } else if (view->sizing_mode == EV_SIZING_FIT_PAGE)
+ break;
+ case EV_SIZING_FIT_PAGE:
scale = zoom_for_size_fit_page (doc_width, doc_height, width - sb_size, height);
- else
+ break;
+ case EV_SIZING_AUTOMATIC:
+ scale = zoom_for_size_automatic (gtk_widget_get_screen (GTK_WIDGET (view)),
+ doc_width, doc_height, width - sb_size, height);
+ break;
+ default:
g_assert_not_reached ();
+ }
ev_document_model_set_scale (view->model, scale);
}
@@ -5953,12 +6009,20 @@ ev_view_zoom_for_size_continuous (EvView *view,
sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
- if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ switch (view->sizing_mode) {
+ case EV_SIZING_FIT_WIDTH:
scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height);
- } else if (view->sizing_mode == EV_SIZING_FIT_PAGE)
+ break;
+ case EV_SIZING_FIT_PAGE:
scale = zoom_for_size_fit_page (doc_width, doc_height, width - sb_size, height);
- else
+ break;
+ case EV_SIZING_AUTOMATIC:
+ scale = zoom_for_size_automatic (gtk_widget_get_screen (GTK_WIDGET (view)),
+ doc_width, doc_height, width - sb_size, height);
+ break;
+ default:
g_assert_not_reached ();
+ }
ev_document_model_set_scale (view->model, scale);
}
@@ -5972,6 +6036,7 @@ ev_view_zoom_for_size_dual_page (EvView *view,
gdouble doc_width, doc_height;
gdouble scale;
gint other_page;
+ gint sb_size;
other_page = view->current_page ^ 1;
@@ -5992,15 +6057,22 @@ ev_view_zoom_for_size_dual_page (EvView *view,
width -= ((border.left + border.right)* 2 + 3 * view->spacing);
height -= (border.top + border.bottom + 2 * view->spacing);
- if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
- gint sb_size;
-
+ switch (view->sizing_mode) {
+ case EV_SIZING_FIT_WIDTH:
sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height);
- } else if (view->sizing_mode == EV_SIZING_FIT_PAGE)
+ break;
+ case EV_SIZING_FIT_PAGE:
scale = zoom_for_size_fit_page (doc_width, doc_height, width, height);
- else
+ break;
+ case EV_SIZING_AUTOMATIC:
+ sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
+ scale = zoom_for_size_automatic (gtk_widget_get_screen (GTK_WIDGET (view)),
+ doc_width, doc_height, width - sb_size, height);
+ break;
+ default:
g_assert_not_reached ();
+ }
ev_document_model_set_scale (view->model, scale);
}
@@ -6013,6 +6085,7 @@ ev_view_zoom_for_size_single_page (EvView *view,
gdouble doc_width, doc_height;
GtkBorder border;
gdouble scale;
+ gint sb_size;
get_doc_page_size (view, view->current_page, &doc_width, &doc_height);
@@ -6022,15 +6095,22 @@ ev_view_zoom_for_size_single_page (EvView *view,
width -= (border.left + border.right + 2 * view->spacing);
height -= (border.top + border.bottom + 2 * view->spacing);
- if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
- gint sb_size;
-
+ switch (view->sizing_mode) {
+ case EV_SIZING_FIT_WIDTH:
sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
scale = zoom_for_size_fit_width (doc_width, doc_height, width - sb_size, height);
- } else if (view->sizing_mode == EV_SIZING_FIT_PAGE)
+ break;
+ case EV_SIZING_FIT_PAGE:
scale = zoom_for_size_fit_page (doc_width, doc_height, width, height);
- else
+ break;
+ case EV_SIZING_AUTOMATIC:
+ sb_size = ev_view_get_scrollbar_size (view, GTK_ORIENTATION_VERTICAL);
+ scale = zoom_for_size_automatic (gtk_widget_get_screen (GTK_WIDGET (view)),
+ doc_width, doc_height, width - sb_size, height);
+ break;
+ default:
g_assert_not_reached ();
+ }
ev_document_model_set_scale (view->model, scale);
}
@@ -6042,7 +6122,8 @@ ev_view_zoom_for_size (EvView *view,
{
g_return_if_fail (EV_IS_VIEW (view));
g_return_if_fail (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
- view->sizing_mode == EV_SIZING_FIT_PAGE);
+ view->sizing_mode == EV_SIZING_FIT_PAGE ||
+ view->sizing_mode == EV_SIZING_AUTOMATIC);
g_return_if_fail (width >= 0);
g_return_if_fail (height >= 0);
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-01 20:48:19 +0000