[gnome-devel-docs] tutorials C: Togglebutton sample/page

[Tiffany Antopolski <antopolski src gnome org>]

commit 8fc2250adfeeea4313c7ce25b41e71540ce18d30
Author: Monica Kochofar <monicakochofar gmail com>
Date:   Tue Jun 12 19:50:26 2012 -0400

    tutorials C: Togglebutton sample/page

 platform-demos/C/samples/togglebutton.c |   73 +++++++++++++++++++++++++++++++
 platform-demos/C/togglebutton.c.page    |   40 +++++++++++++++++
 2 files changed, 113 insertions(+), 0 deletions(-)
---
diff --git a/platform-demos/C/samples/togglebutton.c b/platform-demos/C/samples/togglebutton.c
new file mode 100644
index 0000000..8ef7dcf
--- /dev/null
+++ b/platform-demos/C/samples/togglebutton.c
@@ -0,0 +1,73 @@
+#include <gtk/gtk.h>
+
+/*This is the callback function. It is a handler function 
+which reacts to the signal. In this case, it will cause the 
+spinner to start and stop according to how many times the user 
+presses the button.*/
+static void
+button_toggled_cb (GtkWidget *button,
+                   gpointer   user_data)
+{
+  GtkWidget *spinner = user_data;
+
+  if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(button)))
+          gtk_spinner_start (GTK_SPINNER (spinner));
+  else {
+          gtk_spinner_stop (GTK_SPINNER (spinner));
+  }
+}
+
+static void
+activate (GtkApplication *app,
+          gpointer        user_data)
+{
+  GtkWidget *window;
+  GtkWidget *button;
+  GtkWidget *grid;
+  GtkWidget *spinner;
+
+  /*Create a window with a title, border width and a default size*/
+  window = gtk_application_window_new (app);
+
+  gtk_window_set_title (GTK_WINDOW (window), "ToggleButton Example");
+  gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
+  gtk_container_set_border_width(GTK_CONTAINER(window), 30);
+
+  /*Create a togglebutton with a label*/
+  button = gtk_toggle_button_new_with_label ("Start/Stop");
+
+  /*Create a spinner, with extra horizontal and vertical space*/
+  spinner = gtk_spinner_new ();
+  gtk_widget_set_hexpand (spinner, TRUE);
+  gtk_widget_set_vexpand (spinner, TRUE);
+
+  /*Create a grid and set the row spacing, attach the togglebutton 
+  and spinner onto the grid and position them accordingly*/
+  grid = gtk_grid_new();
+  gtk_grid_set_row_homogeneous (GTK_GRID (grid), FALSE);
+  gtk_grid_set_row_spacing (GTK_GRID (grid), 15);
+  
+  gtk_grid_attach (GTK_GRID (grid), spinner, 0, 0, 1, 1);
+  gtk_grid_attach (GTK_GRID (grid), button, 0, 1, 1, 1);
+  
+  gtk_container_add (GTK_CONTAINER (window), grid);
+
+  /*connecting the clicked signal to the callback*/
+  g_signal_connect (GTK_TOGGLE_BUTTON (button), "toggled", G_CALLBACK (button_toggled_cb), spinner);
+
+  gtk_widget_show_all (window);
+}
+
+int
+main (int argc, char **argv)
+{
+  GtkApplication *app;
+  int status;
+
+  app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
+  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
+  status = g_application_run (G_APPLICATION (app), argc, argv);
+  g_object_unref (app);
+
+  return status;
+}
diff --git a/platform-demos/C/togglebutton.c.page b/platform-demos/C/togglebutton.c.page
new file mode 100644
index 0000000..de39d09
--- /dev/null
+++ b/platform-demos/C/togglebutton.c.page
@@ -0,0 +1,40 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<page xmlns="http://projectmallard.org/1.0/";
+      xmlns:xi="http://www.w3.org/2001/XInclude";
+      type="guide" style="task"
+      id="togglebutton.c">
+  <info>
+    <link type="guide" xref="beginner.c#buttons"/>
+    <link type="seealso" xref="grid.c"/>
+    <link type="seealso" xref="switch.c"/>
+    
+
+    <revision version="0.1" date="2012-06-12" status="draft"/>
+
+    <credit type="author copyright">
+      <name>Monica Kochofar</name>
+      <email>monicakochofar gmail com</email>
+      <years>2012</years>
+    </credit>
+
+    <desc>A button which retains state.</desc>
+  </info>
+
+  <title>Togglebutton</title>
+
+  <media type="image" mime="image/png" src="media/togglebutton.png"/>
+  <p>When this ToggleButton is in an active state, the spinner spins.</p>
+
+      <code mime="text/x-csrc" style="numbered">
+<xi:include href="samples/togglebutton.c" parse="text"><xi:fallback/></xi:include></code>
+<p>
+  In this sample we used the following:
+</p>
+<list>
+  <item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkApplication.html";>GtkApplication</link></p></item>
+  <item><p><link href="http://developer.gnome.org/gtk3/3.4/GtkWindow.html";>GtkWindow</link></p></item>
+  <item><p><link href="http://developer.gnome.org/gtk3/stable/GtkSpinner.html";>GtkSpinner</link></p></item>
+  <item><p><link href="http://developer.gnome.org/gtk3/stable/GtkToggleButton.html";>GtkTogglebutton</link></p></item>
+  <item><p><link href="http://developer.gnome.org/gtk3/stable/GtkGrid.html";>GtkGrid</link></p></item>
+</list>
+</page>