[gtk+/popovers: 17/17] gtk-demo: Add GtkPopovers demo

[Carlos Garnacho <carlosg src gnome org>]

commit 110cb97dcae660c231b1dd8ef07fde44c71187a4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Nov 8 16:12:10 2013 +0100

    gtk-demo: Add GtkPopovers demo
    
    In this demo several widget create popovers with different complexities,
    positions, and grabbing behavior.

 demos/gtk-demo/Makefile.am        |    1 +
 demos/gtk-demo/demo.gresource.xml |    4 +
 demos/gtk-demo/popover.c          |  173 +++++++++++++++++++++++++++++++++++++
 demos/gtk-demo/popover.ui         |  103 ++++++++++++++++++++++
 4 files changed, 281 insertions(+), 0 deletions(-)
---
diff --git a/demos/gtk-demo/Makefile.am b/demos/gtk-demo/Makefile.am
index 7a55553..fd48496 100644
--- a/demos/gtk-demo/Makefile.am
+++ b/demos/gtk-demo/Makefile.am
@@ -39,6 +39,7 @@ demos =                                               \
        panes.c                                 \
        pickers.c                               \
        pixbufs.c                               \
+       popover.c                               \
        printing.c                              \
        revealer.c                              \
        rotated_text.c                          \
diff --git a/demos/gtk-demo/demo.gresource.xml b/demos/gtk-demo/demo.gresource.xml
index f856681..7a5e62e 100644
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -105,6 +105,7 @@
     <file>panes.c</file>
     <file>pickers.c</file>
     <file>pixbufs.c</file>
+    <file>popover.c</file>
     <file>printing.c</file>
     <file>revealer.c</file>
     <file>rotated_text.c</file>
@@ -128,4 +129,7 @@
     <file>messages.txt</file>
     <file>apple-red.png</file>
   </gresource>
+  <gresource prefix="/popover">
+    <file>popover.ui</file>
+  </gresource>
 </gresources>
diff --git a/demos/gtk-demo/popover.c b/demos/gtk-demo/popover.c
new file mode 100644
index 0000000..c9c1a7d
--- /dev/null
+++ b/demos/gtk-demo/popover.c
@@ -0,0 +1,173 @@
+/* Popovers
+ *
+ * A bubble-like window containing contextual information or options.
+ * GtkPopovers can be attached to any widget, and will be displayed
+ * within the same window, but on top of all its content.
+ */
+
+#include <gtk/gtk.h>
+
+static void
+toggle_changed_cb (GtkToggleButton *button,
+                   GtkWidget       *popover)
+{
+  gtk_widget_set_visible (popover,
+                          gtk_toggle_button_get_active (button));
+}
+
+static GtkWidget *
+create_popover (GtkWidget       *parent,
+                GtkWidget       *child,
+                GtkPositionType  pos)
+{
+  GtkWidget *popover;
+
+  popover = gtk_popover_new (parent);
+  gtk_popover_set_position (GTK_POPOVER (popover), pos);
+  gtk_container_add (GTK_CONTAINER (popover), child);
+  gtk_container_set_border_width (GTK_CONTAINER (popover), 6);
+  gtk_widget_show (child);
+
+  return popover;
+}
+
+static GtkWidget *
+create_complex_popover (GtkWidget       *parent,
+                        GtkPositionType  pos)
+{
+  GtkWidget *popover, *content;
+  GtkBuilder *builder;
+
+  builder = gtk_builder_new ();
+  gtk_builder_add_from_resource (builder, "/popover/popover.ui", NULL);
+  content = GTK_WIDGET (gtk_builder_get_object (builder, "box"));
+  g_object_ref (content);
+  gtk_widget_unparent (content);
+  g_object_unref (builder);
+
+  popover = create_popover (parent, content, GTK_POS_BOTTOM);
+  g_object_unref (content);
+
+  return popover;
+}
+
+static void
+entry_size_allocate_cb (GtkEntry      *entry,
+                        GtkAllocation *allocation,
+                        gpointer       user_data)
+{
+  GtkEntryIconPosition popover_pos;
+  GtkPopover *popover = user_data;
+  cairo_rectangle_int_t rect;
+
+  if (gtk_widget_is_visible (GTK_WIDGET (popover)))
+    {
+      popover_pos =
+        GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (entry),
+                                             "popover-icon-pos"));
+      gtk_entry_get_icon_area (entry, popover_pos, &rect);
+      gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
+    }
+}
+
+static void
+entry_icon_press_cb (GtkEntry             *entry,
+                     GtkEntryIconPosition  icon_pos,
+                     GdkEvent             *event,
+                     gpointer              user_data)
+{
+  GtkWidget *popover = user_data;
+  cairo_rectangle_int_t rect;
+
+  gtk_entry_get_icon_area (entry, icon_pos, &rect);
+  gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
+  gtk_widget_show (popover);
+  gtk_grab_add (popover);
+
+  g_object_set_data (G_OBJECT (entry), "popover-icon-pos",
+                     GUINT_TO_POINTER (icon_pos));
+}
+
+static void
+day_selected_cb (GtkCalendar *calendar,
+                 gpointer     user_data)
+{
+  cairo_rectangle_int_t rect;
+  GtkAllocation allocation;
+  GtkWidget *popover;
+  GdkEvent *event;
+
+  event = gtk_get_current_event ();
+
+  if (event->type != GDK_BUTTON_PRESS)
+    return;
+
+  gdk_window_coords_to_parent (event->button.window,
+                               event->button.x, event->button.y,
+                               &event->button.x, &event->button.y);
+  gtk_widget_get_allocation (GTK_WIDGET (calendar), &allocation);
+  rect.x = event->button.x - allocation.x;
+  rect.y = event->button.y - allocation.y;
+  rect.width = rect.height = 1;
+
+  popover = create_popover (GTK_WIDGET (calendar),
+                            gtk_entry_new (),
+                            GTK_POS_BOTTOM);
+  gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
+
+  gtk_widget_show (popover);
+  gtk_grab_add (popover);
+
+  gdk_event_free (event);
+}
+
+GtkWidget *
+do_popover (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+  GtkWidget *popover, *box, *widget;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 24);
+      gtk_container_set_border_width (GTK_CONTAINER (box), 24);
+      gtk_container_add (GTK_CONTAINER (window), box);
+
+      widget = gtk_toggle_button_new_with_label ("Button");
+      popover = create_popover (widget,
+                                gtk_label_new ("This popover does not grab input"),
+                                GTK_POS_TOP);
+      g_signal_connect (widget, "toggled",
+                        G_CALLBACK (toggle_changed_cb), popover);
+      gtk_container_add (GTK_CONTAINER (box), widget);
+
+      widget = gtk_entry_new ();
+      popover = create_complex_popover (widget, GTK_POS_TOP);
+      gtk_entry_set_icon_from_icon_name (GTK_ENTRY (widget),
+                                         GTK_ENTRY_ICON_PRIMARY, "edit-find");
+      gtk_entry_set_icon_from_icon_name (GTK_ENTRY (widget),
+                                         GTK_ENTRY_ICON_SECONDARY, "edit-clear");
+
+      g_signal_connect (widget, "icon-press",
+                        G_CALLBACK (entry_icon_press_cb), popover);
+      g_signal_connect (widget, "size-allocate",
+                        G_CALLBACK (entry_size_allocate_cb), popover);
+      gtk_container_add (GTK_CONTAINER (box), widget);
+
+      widget = gtk_calendar_new ();
+      g_signal_connect (widget, "day-selected",
+                        G_CALLBACK (day_selected_cb), NULL);
+      gtk_container_add (GTK_CONTAINER (box), widget);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show_all (window);
+  else
+    {
+      gtk_widget_destroy (window);
+      window = NULL;
+    }
+
+  return window;
+}
diff --git a/demos/gtk-demo/popover.ui b/demos/gtk-demo/popover.ui
new file mode 100644
index 0000000..33fabe6
--- /dev/null
+++ b/demos/gtk-demo/popover.ui
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.16.0 on Wed Nov 13 16:45:55 2013 -->
+<interface>
+  <!-- interface-requires gtk+ 3.10 -->
+  <object class="GtkListStore" id="liststore1">
+    <columns>
+      <!-- column-name Name -->
+      <column type="gchararray"/>
+    </columns>
+    <data>
+      <row>
+        <col id="0" translatable="yes">Item 1</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 2</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 3</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 4</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 5</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 6</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 7</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 8</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 9</col>
+      </row>
+      <row>
+        <col id="0" translatable="yes">Item 10</col>
+      </row>
+    </data>
+  </object>
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <child>
+      <object class="GtkBox" id="box">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="orientation">vertical</property>
+        <property name="spacing">6</property>
+        <child>
+          <object class="GtkEntry" id="entry1">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="primary_icon_name">edit-find</property>
+            <property name="secondary_icon_name">edit-clear</property>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkScrolledWindow" id="scrolledwindow1">
+            <property name="visible">True</property>
+            <property name="can_focus">True</property>
+            <property name="shadow_type">in</property>
+            <child>
+              <object class="GtkTreeView" id="treeview1">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="vexpand">True</property>
+                <property name="model">liststore1</property>
+                <property name="headers_visible">False</property>
+                <property name="enable_search">False</property>
+                <property name="search_column">2</property>
+                <child internal-child="selection">
+                  <object class="GtkTreeSelection" id="treeview-selection1"/>
+                </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="column1">
+                    <child>
+                      <object class="GtkCellRendererText" id="cellrenderer1"/>
+                      <attributes>
+                        <attribute name="text">0</attribute>
+                      </attributes>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>