From 107b5fcf5e946cdc5a8ae7269221de45c8f1a2fd Mon Sep 17 00:00:00 2001
From: Brandon Lewis <brandon@collabora.co.uk>
Date: Fri, 22 Oct 2010 15:57:45 +0100
Subject: [PATCH] ges-ui: allow enabling/disabling audio/video tracks

---
 tests/examples/ges-ui.c     | 129 +++++++++++++++++++++++++++++++++++-
 tests/examples/ges-ui.glade | 105 +++++++++++++++++++++--------
 2 files changed, 206 insertions(+), 28 deletions(-)

diff --git a/tests/examples/ges-ui.c b/tests/examples/ges-ui.c
index e767839779..2185a68cfb 100644
--- a/tests/examples/ges-ui.c
+++ b/tests/examples/ges-ui.c
@@ -39,6 +39,10 @@ typedef struct App
   GESTimeline *timeline;
   GESTimelinePipeline *pipeline;
   GESTimelineLayer *layer;
+  GESTrack *audio_track;
+  GESTrack *video_track;
+  guint audio_tracks;
+  guint video_tracks;
 
   /* application state */
   gchar *pending_uri;
@@ -77,6 +81,8 @@ typedef struct App
   GtkAction *stop;
   GtkAction *move_up;
   GtkAction *move_down;
+  GtkToggleAction *audio_track_action;
+  GtkToggleAction *video_track_action;
 
   GtkComboBox *halign;
   GtkComboBox *valign;
@@ -110,6 +116,8 @@ void move_down_activate_cb (GtkAction * item, App * app);
 void add_file_activate_cb (GtkAction * item, App * app);
 void add_text_activate_cb (GtkAction * item, App * app);
 void add_test_activate_cb (GtkAction * item, App * app);
+void audio_track_activate_cb (GtkToggleAction * item, App * app);
+void video_track_activate_cb (GtkToggleAction * item, App * app);
 void add_transition_activate_cb (GtkAction * item, App * app);
 void app_selection_changed_cb (GtkTreeSelection * selection, App * app);
 void halign_changed_cb (GtkComboBox * widget, App * app);
@@ -403,6 +411,10 @@ pipeline_state_changed_cb (App * app)
   gtk_action_set_sensitive (app->add_file, !playing_or_paused);
   gtk_action_set_sensitive (app->add_title, !playing_or_paused);
   gtk_action_set_sensitive (app->add_test, !playing_or_paused);
+  gtk_action_set_sensitive ((GtkAction *) app->audio_track_action,
+      !playing_or_paused);
+  gtk_action_set_sensitive ((GtkAction *) app->video_track_action,
+      !playing_or_paused);
   gtk_widget_set_sensitive (app->properties, !playing_or_paused);
 }
 
@@ -711,7 +723,53 @@ layer_added_cb (GESTimeline * timeline, GESTimelineLayer * layer, App * app)
       G_CALLBACK (layer_notify_valid_changed_cb), app);
 }
 
+static void
+update_track_actions (App * app)
+{
+  g_signal_handlers_disconnect_by_func (app->audio_track_action,
+      audio_track_activate_cb, app);
+  g_signal_handlers_disconnect_by_func (app->video_track_action,
+      video_track_activate_cb, app);
+  gtk_toggle_action_set_active (app->audio_track_action, app->audio_tracks);
+  gtk_toggle_action_set_active (app->video_track_action, app->video_tracks);
+  gtk_action_set_sensitive ((GtkAction *) app->audio_track_action,
+      app->audio_tracks <= 1);
+  gtk_action_set_sensitive ((GtkAction *) app->video_track_action,
+      app->video_tracks <= 1);
+  g_signal_connect (G_OBJECT (app->audio_track_action), "activate",
+      G_CALLBACK (audio_track_activate_cb), app);
+  g_signal_connect (G_OBJECT (app->video_track_action), "activate",
+      G_CALLBACK (video_track_activate_cb), app);
+}
 
+static void
+track_added_cb (GESTimeline * timeline, GESTrack * track, App * app)
+{
+  if (track->type == GES_TRACK_TYPE_AUDIO) {
+    app->audio_tracks++;
+    if (!app->audio_track)
+      app->audio_track = track;
+  }
+  if (track->type == GES_TRACK_TYPE_VIDEO) {
+    app->video_tracks++;
+    if (!app->video_track)
+      app->video_track = track;
+  }
+
+
+  update_track_actions (app);
+}
+
+static void
+track_removed_cb (GESTimeline * timeline, GESTrack * track, App * app)
+{
+  if (track->type == GES_TRACK_TYPE_AUDIO)
+    app->audio_tracks--;
+  if (track->type == GES_TRACK_TYPE_VIDEO)
+    app->video_tracks--;
+
+  update_track_actions (app);
+}
 
 static gboolean
 create_ui (App * app)
@@ -728,7 +786,6 @@ create_ui (App * app)
 
   builder = gtk_builder_new ();
   gtk_builder_add_from_file (builder, "ges-ui.glade", NULL);
-  gtk_builder_connect_signals (builder, app);
 
   /* get a bunch of widgets from the XML tree */
 
@@ -759,6 +816,8 @@ create_ui (App * app)
   GET_WIDGET (app->background_properties, "background_properties", GTK_WIDGET);
   GET_WIDGET (app->frequency, "frequency", GTK_SPIN_BUTTON);
   GET_WIDGET (app->volume, "volume", GTK_HSCALE);
+  GET_WIDGET (app->audio_track_action, "audio_track", GTK_TOGGLE_ACTION);
+  GET_WIDGET (app->video_track_action, "video_track", GTK_TOGGLE_ACTION);
 
   /* get text notifications */
 
@@ -810,6 +869,10 @@ create_ui (App * app)
 
   g_signal_connect (app->timeline, "layer-added", G_CALLBACK
       (layer_added_cb), app);
+  g_signal_connect (app->timeline, "track-added", G_CALLBACK
+      (track_added_cb), app);
+  g_signal_connect (app->timeline, "track-removed", G_CALLBACK
+      (track_removed_cb), app);
 
   /* register callbacks on GES objects */
   bus = gst_pipeline_get_bus (GST_PIPELINE (app->pipeline));
@@ -817,7 +880,7 @@ create_ui (App * app)
   g_signal_connect (bus, "message", G_CALLBACK (bus_message_cb), app);
 
   /* success */
-
+  gtk_builder_connect_signals (builder, app);
   g_object_unref (G_OBJECT (builder));
   return TRUE;
 
@@ -1026,6 +1089,46 @@ app_save_to_uri (App * app, gchar * uri)
   ges_timeline_save_to_uri (app->timeline, uri);
 }
 
+static void
+app_add_audio_track (App * app)
+{
+  if (app->audio_tracks)
+    return;
+
+  app->audio_track = ges_track_audio_raw_new ();
+  ges_timeline_add_track (app->timeline, app->audio_track);
+}
+
+static void
+app_remove_audio_track (App * app)
+{
+  if (!app->audio_tracks)
+    return;
+
+  ges_timeline_remove_track (app->timeline, app->audio_track);
+  app->audio_track = NULL;
+}
+
+static void
+app_add_video_track (App * app)
+{
+  if (app->video_tracks)
+    return;
+
+  app->video_track = ges_track_video_raw_new ();
+  ges_timeline_add_track (app->timeline, app->video_track);
+}
+
+static void
+app_remove_video_track (App * app)
+{
+  if (!app->video_tracks)
+    return;
+
+  ges_timeline_remove_track (app->timeline, app->video_track);
+  app->video_track = NULL;
+}
+
 static void
 app_dispose (App * app)
 {
@@ -1104,6 +1207,8 @@ app_new (void)
   if (!(ges_timeline_add_layer (ret->timeline, ret->layer)))
     goto fail;
 
+  ret->audio_track = a;
+  ret->video_track = v;
   return ret;
 
 fail:
@@ -1290,6 +1395,26 @@ move_down_activate_cb (GtkAction * item, App * app)
   app_move_selected_down (app);
 }
 
+void
+audio_track_activate_cb (GtkToggleAction * item, App * app)
+{
+  if (gtk_toggle_action_get_active (item)) {
+    app_add_audio_track (app);
+  } else {
+    app_remove_audio_track (app);
+  }
+}
+
+void
+video_track_activate_cb (GtkToggleAction * item, App * app)
+{
+  if (gtk_toggle_action_get_active (item)) {
+    app_add_video_track (app);
+  } else {
+    app_remove_video_track (app);
+  }
+}
+
 void
 app_selection_changed_cb (GtkTreeSelection * selection, App * app)
 {
diff --git a/tests/examples/ges-ui.glade b/tests/examples/ges-ui.glade
index 9bfd0004b7..b44cce81d3 100644
--- a/tests/examples/ges-ui.glade
+++ b/tests/examples/ges-ui.glade
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk+" version="2.16"/>
   <!-- interface-naming-policy project-wide -->
@@ -59,8 +59,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="new_item">
                         <property name="label">gtk-new</property>
-                        <property name="use_underline">True</property>
                         <property name="visible">True</property>
+                        <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                         <signal name="activate" handler="new_activate_cb"/>
                       </object>
@@ -68,8 +68,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="open_item">
                         <property name="label">gtk-open</property>
-                        <property name="use_underline">True</property>
                         <property name="visible">True</property>
+                        <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                         <signal name="activate" handler="open_activate_cb"/>
                       </object>
@@ -84,9 +84,9 @@
                     <child>
                       <object class="GtkImageMenuItem" id="as_item">
                         <property name="label">gtk-save-as</property>
+                        <property name="visible">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
-                        <property name="visible">True</property>
                         <signal name="activate" handler="save_as_activate_cb"/>
                       </object>
                     </child>
@@ -126,8 +126,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="delete_item">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">delete</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -153,22 +153,22 @@
                     <child>
                       <object class="GtkMenuItem" id="add_file_item">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">add_file</property>
+                        <property name="use_action_appearance">True</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="menuitem4">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">add_text</property>
+                        <property name="use_action_appearance">True</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkImageMenuItem" id="menuitem5">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">add_test</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -176,8 +176,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="imagemenuitem1">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">add_transition</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -190,8 +190,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="menuitem8">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">move_up</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -199,8 +199,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="menuitem9">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">move_down</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -214,8 +214,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="menuitem2">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">play</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -223,8 +223,8 @@
                     <child>
                       <object class="GtkImageMenuItem" id="menuitem6">
                         <property name="visible">True</property>
-                        <property name="use_action_appearance">True</property>
                         <property name="related_action">stop</property>
+                        <property name="use_action_appearance">True</property>
                         <property name="use_underline">True</property>
                         <property name="use_stock">True</property>
                       </object>
@@ -405,6 +405,41 @@
                 <property name="homogeneous">True</property>
               </packing>
             </child>
+            <child>
+              <object class="GtkSeparatorToolItem" id="toolbutton10">
+                <property name="visible">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToggleToolButton" id="toolbutton11">
+                <property name="visible">True</property>
+                <property name="related_action">audio_track</property>
+                <property name="use_action_appearance">True</property>
+                <property name="label" translatable="yes">toolbutton11</property>
+                <property name="use_underline">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
+              <object class="GtkToggleToolButton" id="toolbutton12">
+                <property name="visible">True</property>
+                <property name="related_action">video_track</property>
+                <property name="use_action_appearance">True</property>
+                <property name="label" translatable="yes">toolbutton12</property>
+                <property name="use_underline">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -493,7 +528,7 @@
                           <object class="GtkEntry" id="seconds">
                             <property name="visible">True</property>
                             <property name="can_focus">True</property>
-                            <property name="invisible_char">&#x25CF;</property>
+                            <property name="invisible_char">●</property>
                           </object>
                           <packing>
                             <property name="position">1</property>
@@ -665,7 +700,7 @@
                               <object class="GtkSpinButton" id="frequency">
                                 <property name="visible">True</property>
                                 <property name="can_focus">True</property>
-                                <property name="invisible_char">&#x25CF;</property>
+                                <property name="invisible_char">●</property>
                                 <property name="adjustment">adjustment2</property>
                                 <signal name="value_changed" handler="frequency_value_changed_cb"/>
                               </object>
@@ -737,7 +772,7 @@
                               <object class="GtkEntry" id="text">
                                 <property name="visible">True</property>
                                 <property name="can_focus">True</property>
-                                <property name="invisible_char">&#x25CF;</property>
+                                <property name="invisible_char">●</property>
                               </object>
                               <packing>
                                 <property name="position">1</property>
@@ -836,16 +871,16 @@
   <object class="GtkTreeSelection" id="selection"/>
   <object class="GtkSizeGroup" id="LabelSizeGroup">
     <widgets>
-      <widget name="label4"/>
-      <widget name="label_inpoint"/>
-      <widget name="label_duration"/>
-      <widget name="label_duration"/>
-      <widget name="label_inpoint"/>
-      <widget name="label2"/>
-      <widget name="label3"/>
-      <widget name="label4"/>
-      <widget name="label5"/>
       <widget name="label6"/>
+      <widget name="label5"/>
+      <widget name="label4"/>
+      <widget name="label3"/>
+      <widget name="label2"/>
+      <widget name="label_inpoint"/>
+      <widget name="label_duration"/>
+      <widget name="label_duration"/>
+      <widget name="label_inpoint"/>
+      <widget name="label4"/>
     </widgets>
   </object>
   <object class="GtkAction" id="delete">
@@ -858,7 +893,7 @@
   <object class="GtkAction" id="add_file">
     <property name="label">Add File...</property>
     <property name="short_label">File</property>
-    <property name="icon_name">video-x-generic</property>
+    <property name="icon_name">applications-multimedia</property>
     <property name="always_show_image">True</property>
     <signal name="activate" handler="add_file_activate_cb"/>
   </object>
@@ -922,4 +957,22 @@
     <property name="stock_id">gtk-go-down</property>
     <signal name="activate" handler="move_down_activate_cb"/>
   </object>
+  <object class="GtkToggleAction" id="audio_track">
+    <property name="label">Audio</property>
+    <property name="short_label">Audio</property>
+    <property name="tooltip">Play Audio Track</property>
+    <property name="icon_name">audio-x-generic</property>
+    <property name="always_show_image">True</property>
+    <property name="active">True</property>
+    <signal name="activate" handler="audio_track_activate_cb"/>
+  </object>
+  <object class="GtkToggleAction" id="video_track">
+    <property name="label">Video</property>
+    <property name="short_label">Video</property>
+    <property name="tooltip">Render Video Track</property>
+    <property name="icon_name">video-x-generic</property>
+    <property name="always_show_image">True</property>
+    <property name="active">True</property>
+    <signal name="activate" handler="video_track_activate_cb"/>
+  </object>
 </interface>