Index: views/widget/gtk_views_fixed.cc |
diff --git a/views/widget/gtk_views_fixed.cc b/views/widget/gtk_views_fixed.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..6ab70df8289f155bcd2b91fbdbf531f248201025 |
--- /dev/null |
+++ b/views/widget/gtk_views_fixed.cc |
@@ -0,0 +1,105 @@ |
+// Copyright (c) 2011 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" |
+ |
+#include "base/logging.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__"; |
+static const char* kRequisitionWidth = "__VIEWS_REQUISITION_WIDTH__"; |
+static const char* kRequisitionHeight = "__VIEWS_REQUISITION_HEIGHT__"; |
+ |
+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; |
+ |
+ int width, height; |
+ bool use_allocated_size = |
+ gtk_views_fixed_get_widget_size(child->widget, &width, &height); |
+ 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 = width; |
+ child_allocation.height = 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) { |
+ GTK_WIDGET_SET_FLAGS(GTK_WIDGET(fixed), GTK_CAN_FOCUS); |
+} |
+ |
+GtkWidget* gtk_views_fixed_new(void) { |
+ return GTK_WIDGET(g_object_new(GTK_TYPE_VIEWS_FIXED, NULL)); |
+} |
+ |
+void gtk_views_fixed_set_widget_size(GtkWidget* widget, |
+ int width, int height) { |
+ // Remember the allocation request, and set this widget up to use it. |
+ bool use_requested_size = (width != 0 && height != 0); |
+ g_object_set_data(G_OBJECT(widget), kUseAllocatedSize, |
+ reinterpret_cast<gpointer>(use_requested_size ? 1 : 0)); |
+ g_object_set_data(G_OBJECT(widget), kRequisitionWidth, |
+ reinterpret_cast<gpointer>(width)); |
+ g_object_set_data(G_OBJECT(widget), kRequisitionHeight, |
+ reinterpret_cast<gpointer>(height)); |
+ |
+ gtk_widget_queue_resize(widget); |
+} |
+ |
+bool gtk_views_fixed_get_widget_size(GtkWidget* widget, |
+ int* width, int* height) { |
+ DCHECK(width); |
+ DCHECK(height); |
+ *width = reinterpret_cast<glong>(g_object_get_data(G_OBJECT(widget), |
+ kRequisitionWidth)); |
+ *height = reinterpret_cast<glong>(g_object_get_data(G_OBJECT(widget), |
+ kRequisitionHeight)); |
+ return (g_object_get_data(G_OBJECT(widget), kUseAllocatedSize) != 0); |
+} |
+ |
+G_END_DECLS |