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authorraveit65 <[email protected]>2016-08-07 13:03:17 +0200
committerraveit65 <[email protected]>2016-09-01 08:21:55 +0200
commit5b0b7091d7f3338df67064ea057a9ce49e47608a (patch)
treebb90a63dba3f14b89fd17c74b5e8b6d2b143b32c /mate-screenshot/src/screenshot-dialog.c
parentbc2bda8c7e60627677c701aa20ef5998e32ce42c (diff)
downloadmate-utils-5b0b7091d7f3338df67064ea057a9ce49e47608a.tar.bz2
mate-utils-5b0b7091d7f3338df67064ea057a9ce49e47608a.tar.xz
GTK+-3 screenshot-dialog: Avoid resizing the preview too much
Relying on configure events to resize the preview makes us do more work than necessary and, in particular, gtk+ sometimes sends us phony configure events sized 1x1 which make us hit a pretty CPU intensive resize operation in gdk-pixbuf. Instead, we can avoid all that by creating the preview pixbuf lazily on the draw handler using the actual allocated widget size. https://bugzilla.gnome.org/show_bug.cgi?id=768087 taken from: https://git.gnome.org/browse/gnome-screenshot/commit/?id=c21823b
Diffstat (limited to 'mate-screenshot/src/screenshot-dialog.c')
-rw-r--r--mate-screenshot/src/screenshot-dialog.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/mate-screenshot/src/screenshot-dialog.c b/mate-screenshot/src/screenshot-dialog.c
index fd9f12e4..2886458a 100644
--- a/mate-screenshot/src/screenshot-dialog.c
+++ b/mate-screenshot/src/screenshot-dialog.c
@@ -72,6 +72,21 @@ on_preview_draw (GtkWidget *drawing_area,
{
ScreenshotDialog *dialog = data;
GtkStyleContext *context;
+ int width, height;
+
+ width = gtk_widget_get_allocated_width (drawing_area);
+ height = gtk_widget_get_allocated_height (drawing_area);
+
+ if (!dialog->preview_image ||
+ gdk_pixbuf_get_width (dialog->preview_image) != width ||
+ gdk_pixbuf_get_height (dialog->preview_image) != height)
+ {
+ g_clear_object (&dialog->preview_image);
+ dialog->preview_image = gdk_pixbuf_scale_simple (dialog->screenshot,
+ width,
+ height,
+ GDK_INTERP_BILINEAR);
+ }
context = gtk_widget_get_style_context (drawing_area);
gtk_style_context_save (context);
@@ -153,6 +168,7 @@ on_preview_button_release_event (GtkWidget *drawing_area,
return FALSE;
}
+#if !GTK_CHECK_VERSION (3, 0, 0)
static void
on_preview_configure_event (GtkWidget *drawing_area,
GdkEventConfigure *event,
@@ -168,6 +184,7 @@ on_preview_configure_event (GtkWidget *drawing_area,
event->height,
GDK_INTERP_BILINEAR);
}
+#endif
static void
drag_data_get (GtkWidget *widget,
@@ -299,7 +316,9 @@ screenshot_dialog_new (GdkPixbuf *screenshot,
#endif
g_signal_connect (preview_darea, "button_press_event", G_CALLBACK (on_preview_button_press_event), dialog);
g_signal_connect (preview_darea, "button_release_event", G_CALLBACK (on_preview_button_release_event), dialog);
+#if !GTK_CHECK_VERSION (3, 0, 0)
g_signal_connect (preview_darea, "configure_event", G_CALLBACK (on_preview_configure_event), dialog);
+#endif
if (take_window_shot)
gtk_frame_set_shadow_type (GTK_FRAME (aspect_frame), GTK_SHADOW_NONE);