1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ui/views/controls/menu/menu_separator.h"
6
7#include <windows.h>
8#include <uxtheme.h>
9#include <Vssym32.h>
10
11#include "ui/gfx/canvas.h"
12#include "ui/gfx/rect.h"
13#include "ui/gfx/win/dpi.h"
14#include "ui/native_theme/native_theme.h"
15#include "ui/native_theme/native_theme_aura.h"
16#include "ui/views/controls/menu/menu_config.h"
17#include "ui/views/controls/menu/menu_item_view.h"
18
19namespace views {
20
21void MenuSeparator::OnPaint(gfx::Canvas* canvas) {
22  const MenuConfig& config = parent_menu_item_->GetMenuConfig();
23
24  if (config.native_theme == ui::NativeThemeAura::instance()) {
25    OnPaintAura(canvas);
26    return;
27  }
28
29  gfx::Rect separator_bounds = GetPaintBounds();
30  if (config.render_gutter) {
31    // If render_gutter is true, we're on Vista and need to render the
32    // gutter, then indent the separator from the gutter.
33    gfx::Rect gutter_bounds(MenuItemView::label_start() -
34        config.gutter_to_label - config.gutter_width, 0,
35        config.gutter_width, height());
36    ui::NativeTheme::ExtraParams extra;
37    config.native_theme->Paint(
38        canvas->sk_canvas(), ui::NativeTheme::kMenuPopupGutter,
39        ui::NativeTheme::kNormal, gutter_bounds, extra);
40    separator_bounds.set_x(gutter_bounds.x() + config.gutter_width);
41  }
42
43  ui::NativeTheme::ExtraParams extra;
44  extra.menu_separator.has_gutter = config.render_gutter;
45
46  // Hack to get the separator to display correctly on Windows where we may
47  // have fractional scales. We move the separator 1 pixel down to ensure that
48  // it falls within the clipping rect which is scaled up.
49  float device_scale = gfx::win::GetDeviceScaleFactor();
50  bool is_fractional_scale =
51      (device_scale - static_cast<int>(device_scale) != 0);
52  if (is_fractional_scale && separator_bounds.y() == 0)
53    separator_bounds.set_y(1);
54
55  config.native_theme->Paint(
56      canvas->sk_canvas(), ui::NativeTheme::kMenuPopupSeparator,
57      ui::NativeTheme::kNormal, separator_bounds, extra);
58}
59
60}  // namespace views
61