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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/gtk/gtk_expanded_container.h"
#include <gtk/gtk.h>
#include <algorithm>
namespace {
enum {
CHILD_SIZE_REQUEST,
LAST_SIGNAL
};
guint expanded_container_signals[LAST_SIGNAL] = { 0 };
struct SizeAllocateData {
GtkWidget* container;
GtkAllocation* allocation;
int border_width;
};
void GetChildPosition(GtkWidget* container, GtkWidget* child, int* x, int* y) {
GValue v = { 0 };
g_value_init(&v, G_TYPE_INT);
gtk_container_child_get_property(GTK_CONTAINER(container), child, "x", &v);
*x = g_value_get_int(&v);
gtk_container_child_get_property(GTK_CONTAINER(container), child, "y", &v);
*y = g_value_get_int(&v);
g_value_unset(&v);
}
void ChildSizeAllocate(GtkWidget* child, gpointer userdata) {
if (!GTK_WIDGET_VISIBLE(child))
return;
SizeAllocateData* data = reinterpret_cast<SizeAllocateData*>(userdata);
GtkRequisition child_requisition;
child_requisition.width = data->allocation->width - data->border_width * 2;
child_requisition.height = data->allocation->height - data->border_width * 2;
// We need to give whoever is pulling our strings a chance to adjust the
// size of our children.
g_signal_emit(data->container,
expanded_container_signals[CHILD_SIZE_REQUEST], 0,
child, &child_requisition);
GtkAllocation child_allocation;
child_allocation.width = child_requisition.width;
child_allocation.height = child_requisition.height;
if (child_allocation.width < 0 || child_allocation.height < 0) {
gtk_widget_get_child_requisition(child, &child_requisition);
if (child_allocation.width < 0)
child_allocation.width = child_requisition.width;
if (child_allocation.height < 0)
child_allocation.height = child_requisition.height;
}
int x, y;
GetChildPosition(data->container, child, &x, &y);
child_allocation.x = x + data->border_width;
child_allocation.y = y + data->border_width;
if (GTK_WIDGET_NO_WINDOW(data->container)) {
child_allocation.x += data->allocation->x;
child_allocation.y += data->allocation->y;
}
gtk_widget_size_allocate(child, &child_allocation);
}
void Marshal_VOID__OBJECT_BOXED(GClosure* closure,
GValue* return_value G_GNUC_UNUSED,
guint n_param_values,
const GValue* param_values,
gpointer invocation_hint G_GNUC_UNUSED,
gpointer marshal_data) {
typedef void (*GMarshalFunc_VOID__OBJECT_BOXED) (gpointer data1,
gpointer arg_1,
gpointer arg_2,
gpointer data2);
register GMarshalFunc_VOID__OBJECT_BOXED callback;
register GCClosure *cc = reinterpret_cast<GCClosure*>(closure);
register gpointer data1, data2;
g_return_if_fail(n_param_values == 3);
if (G_CCLOSURE_SWAP_DATA(closure)) {
data1 = closure->data;
data2 = g_value_peek_pointer(param_values + 0);
} else {
data1 = g_value_peek_pointer(param_values + 0);
data2 = closure->data;
}
callback = reinterpret_cast<GMarshalFunc_VOID__OBJECT_BOXED>(
marshal_data ? marshal_data : cc->callback);
callback(data1,
g_value_get_object(param_values + 1),
g_value_get_boxed(param_values + 2),
data2);
}
} // namespace
G_BEGIN_DECLS
static void gtk_expanded_container_size_allocate(GtkWidget* widget,
GtkAllocation* allocation);
G_DEFINE_TYPE(GtkExpandedContainer, gtk_expanded_container, GTK_TYPE_FIXED)
static void gtk_expanded_container_class_init(
GtkExpandedContainerClass *klass) {
GtkObjectClass* object_class =
reinterpret_cast<GtkObjectClass*>(klass);
GtkWidgetClass* widget_class =
reinterpret_cast<GtkWidgetClass*>(klass);
widget_class->size_allocate = gtk_expanded_container_size_allocate;
expanded_container_signals[CHILD_SIZE_REQUEST] =
g_signal_new("child-size-request",
G_OBJECT_CLASS_TYPE(object_class),
static_cast<GSignalFlags>(G_SIGNAL_RUN_FIRST),
0,
NULL, NULL,
Marshal_VOID__OBJECT_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_WIDGET,
GTK_TYPE_REQUISITION | G_SIGNAL_TYPE_STATIC_SCOPE);
}
static void gtk_expanded_container_init(GtkExpandedContainer* container) {
}
static void gtk_expanded_container_size_allocate(GtkWidget* widget,
GtkAllocation* allocation) {
widget->allocation = *allocation;
if (!GTK_WIDGET_NO_WINDOW(widget) && GTK_WIDGET_REALIZED(widget)) {
gdk_window_move_resize(widget->window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
}
SizeAllocateData data;
data.container = widget;
data.allocation = allocation;
data.border_width = gtk_container_get_border_width(GTK_CONTAINER(widget));
gtk_container_foreach(GTK_CONTAINER(widget), ChildSizeAllocate, &data);
}
GtkWidget* gtk_expanded_container_new() {
return GTK_WIDGET(g_object_new(GTK_TYPE_EXPANDED_CONTAINER, NULL));
}
void gtk_expanded_container_put(GtkExpandedContainer* container,
GtkWidget* widget, gint x, gint y) {
g_return_if_fail(GTK_IS_EXPANDED_CONTAINER(container));
g_return_if_fail(GTK_IS_WIDGET(widget));
gtk_fixed_put(GTK_FIXED(container), widget, x, y);
}
void gtk_expanded_container_move(GtkExpandedContainer* container,
GtkWidget* widget, gint x, gint y) {
g_return_if_fail(GTK_IS_EXPANDED_CONTAINER(container));
g_return_if_fail(GTK_IS_WIDGET(widget));
gtk_fixed_move(GTK_FIXED(container), widget, x, y);
}
void gtk_expanded_container_set_has_window(GtkExpandedContainer* container,
gboolean has_window) {
g_return_if_fail(GTK_IS_EXPANDED_CONTAINER(container));
g_return_if_fail(!GTK_WIDGET_REALIZED(container));
gtk_fixed_set_has_window(GTK_FIXED(container), has_window);
}
gboolean gtk_expanded_container_get_has_window(
GtkExpandedContainer* container) {
g_return_val_if_fail(GTK_IS_EXPANDED_CONTAINER(container), FALSE);
return gtk_fixed_get_has_window(GTK_FIXED(container));
}
G_END_DECLS
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