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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 "views/widget/gtk_views_fixed.h"
// We store whether we use the widget's allocated size as a property. Ideally
// we would stash this in GtkFixedChild, but GtkFixed doesn't allow subclassing
// gtk_fixed_put. Alternatively we could subclass GtkContainer and use our own
// API (effectively duplicating GtkFixed), but that means folks could no longer
// use the GtkFixed API else where in Chrome. For now I'm going with this route.
static const char* kUseAllocatedSize = "__VIEWS_USE_ALLOCATED_SIZE__";
G_BEGIN_DECLS
G_DEFINE_TYPE(GtkViewsFixed, gtk_views_fixed, GTK_TYPE_FIXED)
static void gtk_views_fixed_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);
}
int border_width = GTK_CONTAINER(widget)->border_width;
GList* children = GTK_FIXED(widget)->children;
while (children) {
GtkFixedChild* child = reinterpret_cast<GtkFixedChild*>(children->data);
children = children->next;
if (GTK_WIDGET_VISIBLE(child->widget)) {
GtkAllocation child_allocation;
gpointer use_allocated_size = g_object_get_data(G_OBJECT(child->widget),
kUseAllocatedSize);
if (use_allocated_size) {
// NOTE: even though the size isn't changing, we have to call
// size_allocate, otherwise things like buttons won't repaint.
child_allocation.width = child->widget->allocation.width;
child_allocation.height = child->widget->allocation.height;
} else {
GtkRequisition child_requisition;
gtk_widget_get_child_requisition(child->widget, &child_requisition);
child_allocation.width = child_requisition.width;
child_allocation.height = child_requisition.height;
}
child_allocation.x = child->x + border_width;
child_allocation.y = child->y + border_width;
if (GTK_WIDGET_NO_WINDOW(widget)) {
child_allocation.x += widget->allocation.x;
child_allocation.y += widget->allocation.y;
}
gtk_widget_size_allocate(child->widget, &child_allocation);
}
}
}
static void gtk_views_fixed_class_init(GtkViewsFixedClass* views_fixed_class) {
GtkWidgetClass* widget_class =
reinterpret_cast<GtkWidgetClass*>(views_fixed_class);
widget_class->size_allocate = gtk_views_fixed_size_allocate;
}
static void gtk_views_fixed_init(GtkViewsFixed* fixed) {
}
GtkWidget* gtk_views_fixed_new(void) {
return GTK_WIDGET(g_object_new(GTK_TYPE_VIEWS_FIXED, NULL));
}
void gtk_views_fixed_set_use_allocated_size(GtkWidget* widget, bool value) {
g_object_set_data(G_OBJECT(widget), kUseAllocatedSize,
reinterpret_cast<gpointer>(value ? 1 : 0));
}
G_END_DECLS
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