Debugging code to print layer tree

ui/aura/window.cc

 // 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 "ui/aura/window.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
+#include "base/string_util.h"
 #include "ui/aura/client/stacking_client.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura/event.h"
 #include "ui/aura/event_filter.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_types.h"
 #include "ui/base/animation/multi_animation.h"
 #include "ui/gfx/canvas_skia.h"
@@ skipping 46 matching lines @@
   if (parent_)
     parent_->RemoveChild(this);
 
   FOR_EACH_OBSERVER(WindowObserver, observers_, OnWindowDestroyed(this));
 }
 
 void Window::Init(ui::Layer::LayerType layer_type) {
   layer_.reset(new ui::Layer(Desktop::GetInstance()->compositor(), layer_type));
   layer_->SetVisible(false);
   layer_->set_delegate(this);
+#if ndef NDEBUG

[tfarina, 2011/11/11 18:46:28]

nit: #ifndef

[Ben Goodger (Google), 2011/11/14 22:59:09]

mostly we do !defined()

+  std::string layer_name(name());

[tfarina, 2011/11/11 18:46:28]

nit: name() -> name_

+  if (layer_name.empty())
+    layer_name.append("Unnamed Window");
+
+  if (id() != -1) {

[tfarina, 2011/11/11 18:46:28]

nit: id() -> id_

+    char id_buf[10];
+    base::snprintf(id_buf, sizeof(id_buf), " %d", id());

[tfarina, 2011/11/11 18:46:28]

nit: id() -> id_

+    layer_name.append(id_buf);

[Ben Goodger (Google), 2011/11/14 22:59:09]

I agree with tfarina's nits here, prevalent style is to use the member vars
directly.

+  }
+  layer_->set_name(layer_name);
+#endif
 }
 
 void Window::SetType(WindowType type) {
   // Cannot change type after the window is initialized.
   DCHECK(!layer());
   type_ = type;
 }
 
 void Window::Show() {
   SetVisible(true);
@@ skipping 402 matching lines @@
 
   return delegate_ ? this : NULL;
 }
 
 void Window::OnPaintLayer(gfx::Canvas* canvas) {
   if (delegate_)
     delegate_->OnPaint(canvas);
 }
 
 }  // namespace aura