Implemented zoom buttons.

1 files changed, 27 insertions, 1 deletions

diff --git a/window_main.c b/window_main.c
index ff5200f..bd1de4f 100644
--- a/window_main.c
+++ b/window_main.c
@@ -27,6 +27,7 @@ gboolean layout_dragging = FALSE;
 gdouble layout_dragx, layout_dragy;
 
 enum zoom_mode_t zoom_mode = ZOOM_BESTFIT;
+gdouble zoom_factor = 1.0;
 
 GtkWindow *window;
 GtkImage *image = NULL;
@@ -186,8 +187,21 @@ static void set_image_pixbuf() {
 
 		set_image_pixbuf_resized(pb, win_width, win_height, width, height, ratio);
 		g_object_unref(pb);
-	} else if(zoom_mode == ZOOM_NORMAL || zoom_mode == ZOOM_CUSTOM) {
+	} else if(zoom_mode == ZOOM_NORMAL) {
 		set_image_pixbuf_normal(orig_pixbuf, win_width, win_height, gdk_pixbuf_get_width(orig_pixbuf), gdk_pixbuf_get_height(orig_pixbuf));
+	} else if(zoom_mode == ZOOM_CUSTOM) {
+		pb = zoom_pixbuf(orig_pixbuf, zoom_factor);
+		if(!pb)
+			return;
+
+		width = gdk_pixbuf_get_width(pb);
+		height = gdk_pixbuf_get_height(pb);
+
+		set_image_pixbuf_normal(pb, win_width, win_height, width, height);
+
+		set_resize_msg(zoom_factor);
+
+		g_object_unref(pb);
 	}
 }
 
@@ -921,6 +935,18 @@ void on_zoom_mode_toggled(GtkToggleToolButton *toolbutton, gpointer user_data) {
 	}
 }
 
+void on_zoom_in_clicked(GtkToolButton *toolbutton, gpointer user_data) {
+	zoom_mode = ZOOM_CUSTOM;
+	zoom_factor *= 1.25;
+	set_image_pixbuf();
+}
+
+void on_zoom_out_clicked(GtkToolButton *toolbutton, gpointer user_data) {
+	zoom_mode = ZOOM_CUSTOM;
+	zoom_factor *= .80;
+	set_image_pixbuf();
+}
+
 gboolean on_layout_button_press_event(GtkWindow *widget, GdkEventButton *event, gpointer user_data) {
 	GtkAdjustment *hadj, *vadj;