Repositioning the viewport after zoom events became quite annoying and the
internal zoom of the gtk image viewer handled it correctly already so..
--
Frank
diff --git a/ufraw_preview.c b/ufraw_preview.c
index fcf1589..b10a0f8 100644
--- a/ufraw_preview.c
+++ b/ufraw_preview.c
@@ -785,12 +785,19 @@ static void render_init(preview_data *data)
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) {
+ 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 */
gdk_pixbuf_fill(data->PreviewPixbuf, 0);
gtk_image_view_set_pixbuf(GTK_IMAGE_VIEW(data->PreviewWidget),
data->PreviewPixbuf, FALSE);
+ /* restore the viewport */
+ gtk_image_view_set_offset(GTK_IMAGE_VIEW(data->PreviewWidget),
+ xc - vp.width / 2, yc - vp.height / 2, FALSE);
g_object_unref(data->PreviewPixbuf);
}
render_status_text(data);
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