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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_UI_GTK_GTK_EXPANDED_CONTAINER_H_
      6 #define CHROME_BROWSER_UI_GTK_GTK_EXPANDED_CONTAINER_H_
      7 #pragma once
      8 
      9 #include <gdk/gdk.h>
     10 #include <gtk/gtk.h>
     11 
     12 // A specialized container derived from GtkFixed, which expands the size of its
     13 // children to fill the container, in one or both directions. The usage of this
     14 // container is similar to GtkFixed.
     15 //
     16 // The "child-size-request" signal is optional, if you want to expand child
     17 // widgets to customized size other than the container's size. It should have
     18 // the following signature:
     19 //
     20 //   void (*child_size_request)(GtkExpandedContainer* container,
     21 //                              GtkWidget* child,
     22 //                              GtkRequisition* requisition);
     23 //
     24 // This signal is emitted for each child with the requisition set to the size of
     25 // the container. Your handler may adjust the value of the requisition. If the
     26 // width or height is set to -1, then that direction will not be expanded, and
     27 // the original size request of the child will be used.
     28 
     29 G_BEGIN_DECLS
     30 
     31 #define GTK_TYPE_EXPANDED_CONTAINER                                 \
     32     (gtk_expanded_container_get_type())
     33 #define GTK_EXPANDED_CONTAINER(obj)                                 \
     34     (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_EXPANDED_CONTAINER, \
     35                                 GtkExpandedContainer))
     36 #define GTK_EXPANDED_CONTAINER_CLASS(klass)                         \
     37     (G_TYPE_CHECK_CLASS_CAST((klass), GTK_TYPE_EXPANDED_CONTAINER,  \
     38                              GtkExpandedContainerClass))
     39 #define GTK_IS_EXPANDED_CONTAINER(obj)                              \
     40     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GTK_TYPE_EXPANDED_CONTAINER))
     41 #define GTK_IS_EXPANDED_CONTAINER_CLASS(klass)                      \
     42     (G_TYPE_CHECK_CLASS_TYPE((klass), GTK_TYPE_EXPANDED_CONTAINER))
     43 #define GTK_EXPANDED_CONTAINER_GET_CLASS(obj)                       \
     44     (G_TYPE_INSTANCE_GET_CLASS((obj), GTK_TYPE_EXPANDED_CONTAINER,  \
     45                                GtkExpandedContainerClass))
     46 
     47 typedef struct _GtkExpandedContainer GtkExpandedContainer;
     48 typedef struct _GtkExpandedContainerClass GtkExpandedContainerClass;
     49 
     50 struct _GtkExpandedContainer {
     51   // Parent class.
     52   GtkFixed fixed;
     53 };
     54 
     55 struct _GtkExpandedContainerClass {
     56   GtkFixedClass parent_class;
     57 };
     58 
     59 GType gtk_expanded_container_get_type() G_GNUC_CONST;
     60 GtkWidget* gtk_expanded_container_new();
     61 void gtk_expanded_container_put(GtkExpandedContainer* container,
     62                                 GtkWidget* widget, gint x, gint y);
     63 void gtk_expanded_container_move(GtkExpandedContainer* container,
     64                                  GtkWidget* widget, gint x, gint y);
     65 void gtk_expanded_container_set_has_window(GtkExpandedContainer* container,
     66                                            gboolean has_window);
     67 gboolean gtk_expanded_container_get_has_window(GtkExpandedContainer* container);
     68 
     69 G_END_DECLS
     70 
     71 #endif  // CHROME_BROWSER_UI_GTK_GTK_EXPANDED_CONTAINER_H_
     72