Update of /cvsroot/ufraw/ufraw
In directory ddv4jf1.ch3.sourceforge.com:/tmp/cvs-serv10728
Modified Files:
ufraw_preview.c
Log Message:
Keep the viewport center during zooming. Patch by Frank van Maarseveen.
Index: ufraw_preview.c
===================================================================
RCS file: /cvsroot/ufraw/ufraw/ufraw_preview.c,v
retrieving revision 1.302
retrieving revision 1.303
diff -u -d -r1.302 -r1.303
--- ufraw_preview.c 10 Nov 2009 03:33:55 -0000 1.302
+++ ufraw_preview.c 10 Nov 2009 03:44:25 -0000 1.303
@@ -785,6 +785,13 @@
int height = gdk_pixbuf_get_height(data->PreviewPixbuf);
ufraw_image_data *image = ufraw_final_image(data->UF, FALSE);
if (width!=image->width || height!=image->height) {
+
+ /* Calculate current viewport center */
+ GdkRectangle vp;
+ gtk_image_view_get_viewport(GTK_IMAGE_VIEW(data->PreviewWidget), &vp);
+ double xc = (vp.x + vp.width / 2.0) / width * image->width;
+ double yc = (vp.y + vp.height / 2.0) / height * image->height;
+
data->PreviewPixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
image->width, image->height);
/* Clear the pixbuffer to avoid displaying garbage */
@@ -792,6 +799,11 @@
gtk_image_view_set_pixbuf(GTK_IMAGE_VIEW(data->PreviewWidget),
data->PreviewPixbuf, FALSE);
g_object_unref(data->PreviewPixbuf);
+
+ /* restore the viewport center */
+ gtk_image_view_set_offset(GTK_IMAGE_VIEW(data->PreviewWidget),
+ xc - vp.width / 2, yc - vp.height / 2, FALSE);
+
}
render_status_text(data);
}
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