[gnome-photos/wip/rishi/zoom: 3/4] preview-view: Hook up GActions

[Debarshi Ray <debarshir src gnome org>]

commit b30dbea961fb28510c95d2fc4afcbbd0a7b2fcdc
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Apr 6 14:19:49 2017 +0200

    preview-view: Hook up GActions

 src/photos-preview-view.c |   59 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 59 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-preview-view.c b/src/photos-preview-view.c
index 41a10a1..9785390 100644
--- a/src/photos-preview-view.c
+++ b/src/photos-preview-view.c
@@ -634,6 +634,52 @@ photos_preview_view_window_mode_changed (PhotosPreviewView *self, PhotosWindowMo
 
 
 static void
+photos_preview_view_zoom_best_fit (PhotosPreviewView *self)
+{
+  GtkWidget *view;
+  GtkWidget *view_container;
+
+  view_container = gtk_stack_get_visible_child (GTK_STACK (self->stack));
+  view = photos_preview_view_get_view_from_view_container (view_container);
+  photos_image_view_set_best_fit (PHOTOS_IMAGE_VIEW (view), TRUE);
+}
+
+
+static void
+photos_preview_view_zoom_in (PhotosPreviewView *self)
+{
+  GtkWidget *view;
+  GtkWidget *view_container;
+  gdouble zoom;
+
+  view_container = gtk_stack_get_visible_child (GTK_STACK (self->stack));
+  view = photos_preview_view_get_view_from_view_container (view_container);
+
+  zoom = photos_image_view_get_zoom (PHOTOS_IMAGE_VIEW (view));
+  zoom *= 1.05;
+
+  photos_image_view_set_zoom (PHOTOS_IMAGE_VIEW (view), zoom);
+}
+
+
+static void
+photos_preview_view_zoom_out (PhotosPreviewView *self)
+{
+  GtkWidget *view;
+  GtkWidget *view_container;
+  gdouble zoom;
+
+  view_container = gtk_stack_get_visible_child (GTK_STACK (self->stack));
+  view = photos_preview_view_get_view_from_view_container (view_container);
+
+  zoom = photos_image_view_get_zoom (PHOTOS_IMAGE_VIEW (view));
+  zoom /= 1.05;
+
+  photos_image_view_set_zoom (PHOTOS_IMAGE_VIEW (view), zoom);
+}
+
+
+static void
 photos_preview_view_dispose (GObject *object)
 {
   PhotosPreviewView *self = PHOTOS_PREVIEW_VIEW (object);
@@ -787,6 +833,19 @@ photos_preview_view_init (PhotosPreviewView *self)
 
   action = g_action_map_lookup_action (G_ACTION_MAP (app), "sharpen-current");
   g_signal_connect_object (action, "activate", G_CALLBACK (photos_preview_view_sharpen), self, 
G_CONNECT_SWAPPED);
+
+  action = g_action_map_lookup_action (G_ACTION_MAP (app), "zoom-best-fit");
+  g_signal_connect_object (action,
+                           "activate",
+                           G_CALLBACK (photos_preview_view_zoom_best_fit),
+                           self,
+                           G_CONNECT_SWAPPED);
+
+  action = g_action_map_lookup_action (G_ACTION_MAP (app), "zoom-in");
+  g_signal_connect_object (action, "activate", G_CALLBACK (photos_preview_view_zoom_in), self, 
G_CONNECT_SWAPPED);
+
+  action = g_action_map_lookup_action (G_ACTION_MAP (app), "zoom-out");
+  g_signal_connect_object (action, "activate", G_CALLBACK (photos_preview_view_zoom_out), self, 
G_CONNECT_SWAPPED);
 }