From cb56a6b32bd2f1c0afbbc4d5c29a6b4f5a62c807 Mon Sep 17 00:00:00 2001
From: Thiago Santos <thiagoss@osg.samsung.com>
Date: Mon, 27 Apr 2015 19:28:57 -0300
Subject: [PATCH] examples: gst-camera: add zoom property to UI

Add a slider to modify the zoom in camerabin
---
 tests/examples/camerabin2/gst-camera2.c  |  7 +++++++
 tests/examples/camerabin2/gst-camera2.h  |  3 +++
 tests/examples/camerabin2/gst-camera2.ui | 36 ++++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+)

diff --git a/tests/examples/camerabin2/gst-camera2.c b/tests/examples/camerabin2/gst-camera2.c
index 0b656a5..5104d3b 100644
--- a/tests/examples/camerabin2/gst-camera2.c
+++ b/tests/examples/camerabin2/gst-camera2.c
@@ -203,6 +203,13 @@ on_formatComboBox_changed (GtkWidget * widget, gpointer data)
   }
 }
 
+void
+on_zoomScale_value_changed (GtkWidget * widget, gpointer data)
+{
+  g_object_set (camera, "zoom",
+      (gfloat) gtk_range_get_value (GTK_RANGE (widget)), NULL);
+}
+
 static GstBusSyncReply
 bus_sync_callback (GstBus * bus, GstMessage * message, gpointer data)
 {
diff --git a/tests/examples/camerabin2/gst-camera2.h b/tests/examples/camerabin2/gst-camera2.h
index 8477dac..825d10a 100644
--- a/tests/examples/camerabin2/gst-camera2.h
+++ b/tests/examples/camerabin2/gst-camera2.h
@@ -48,4 +48,7 @@ on_viewfinderArea_realize (GtkWidget * widget, gpointer data);
 void
 on_formatComboBox_changed (GtkWidget * widget, gpointer data);
 
+void
+on_zoomScale_value_changed (GtkWidget * widget, gpointer data);
+
 #endif /* __GST_CAMERA_BIN_H__ */
diff --git a/tests/examples/camerabin2/gst-camera2.ui b/tests/examples/camerabin2/gst-camera2.ui
index af05fd7..52bcfc6 100644
--- a/tests/examples/camerabin2/gst-camera2.ui
+++ b/tests/examples/camerabin2/gst-camera2.ui
@@ -2,6 +2,13 @@
 <!-- Generated with glade 3.18.3 -->
 <interface>
   <requires lib="gtk+" version="3.0"/>
+  <object class="GtkAdjustment" id="zoomadjustment">
+    <property name="lower">1</property>
+    <property name="upper">10</property>
+    <property name="value">1</property>
+    <property name="step_increment">0.10000000000000001</property>
+    <property name="page_increment">1</property>
+  </object>
   <object class="GtkWindow" id="mainWindow">
     <property name="can_focus">False</property>
     <property name="default_width">800</property>
@@ -44,6 +51,7 @@
                 <property name="xalign">0</property>
                 <property name="active">True</property>
                 <property name="draw_indicator">True</property>
+                <property name="group">imageRButton</property>
                 <signal name="toggled" handler="on_videoRButton_toggled" swapped="no"/>
               </object>
               <packing>
@@ -147,6 +155,34 @@
                     <property name="position">4</property>
                   </packing>
                 </child>
+                <child>
+                  <object class="GtkLabel" id="label1">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <property name="label" translatable="yes">Zoom</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">5</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkScale" id="zoomScale">
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <property name="adjustment">zoomadjustment</property>
+                    <property name="fill_level">10</property>
+                    <property name="round_digits">1</property>
+                    <property name="value_pos">right</property>
+                    <signal name="value-changed" handler="on_zoomScale_value_changed" swapped="no"/>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">6</property>
+                  </packing>
+                </child>
               </object>
               <packing>
                 <property name="expand">False</property>
-- 
2.7.4