| // Copyright 2017 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. |
| |
| #ifndef UI_VIEWS_VIEW_PROPERTIES_H_ |
| #define UI_VIEWS_VIEW_PROPERTIES_H_ |
| |
| #include "ui/base/class_property.h" |
| #include "ui/views/views_export.h" |
| |
| namespace gfx { |
| class Insets; |
| } // namespace gfx |
| |
| namespace views { |
| |
| // A property to store margins around the outer perimeter of the view. Margins |
| // are outside the bounds of the view. This is used by various layout managers |
| // to position views with the proper spacing between them. |
| VIEWS_EXPORT extern const ui::ClassProperty<gfx::Insets*>* const kMarginsKey; |
| |
| } // namespace views |
| |
| // Declaring the template specialization here to make sure that the |
| // compiler in all builds, including jumbo builds, always knows about |
| // the specialization before the first template instance use. Using a |
| // template instance before its specialization is declared in a |
| // translation unit is a C++ error. |
| DECLARE_EXPORTED_UI_CLASS_PROPERTY_TYPE(VIEWS_EXPORT, gfx::Insets*); |
| |
| #endif // UI_VIEWS_VIEW_PROPERTIES_H_ |
