ui/views/controls/focusable_border.cc

   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/focusable_border.h"
   6
   7 #include "ui/gfx/canvas.h"
   8 #include "ui/gfx/insets.h"
   9 #include "ui/gfx/skia_util.h"
  10 #include "ui/native_theme/native_theme.h"
  11
  12 namespace {
  13
  14 // Define the size of the insets
  15 const int kTopInsetSize = 4;
  16 const int kLeftInsetSize = 4;
  17 const int kBottomInsetSize = 4;
  18 const int kRightInsetSize = 4;
  19
  20 }  // namespace
  21
  22 namespace views {
  23
  24 FocusableBorder::FocusableBorder()
  25     : insets_(kTopInsetSize, kLeftInsetSize,
  26               kBottomInsetSize, kRightInsetSize),
  27       override_color_(SK_ColorWHITE),
  28       use_default_color_(true) {
  29 }
  30
  31 void FocusableBorder::SetColor(SkColor color) {
  32   override_color_ = color;
  33   use_default_color_ = false;
  34 }
  35
  36 void FocusableBorder::UseDefaultColor() {
  37   use_default_color_ = true;
  38 }
  39
  40 void FocusableBorder::Paint(const View& view, gfx::Canvas* canvas) {
  41   SkPath path;
  42   path.addRect(gfx::RectToSkRect(view.GetLocalBounds()), SkPath::kCW_Direction);
  43   SkPaint paint;
  44   paint.setStyle(SkPaint::kStroke_Style);
  45   SkColor color = override_color_;
  46   if (use_default_color_) {
  47     color = view.GetNativeTheme()->GetSystemColor(
  48         view.HasFocus() ? ui::NativeTheme::kColorId_FocusedBorderColor :
  49                           ui::NativeTheme::kColorId_UnfocusedBorderColor);
  50   }
  51
  52   paint.setColor(color);
  53   paint.setStrokeWidth(SkIntToScalar(2));
  54
  55   canvas->DrawPath(path, paint);
  56 }
  57
  58 gfx::Insets FocusableBorder::GetInsets() const {
  59   return insets_;
  60 }
  61
  62 gfx::Size FocusableBorder::GetMinimumSize() const {
  63   return gfx::Size();
  64 }
  65
  66 void FocusableBorder::SetInsets(int top, int left, int bottom, int right) {
  67   insets_.Set(top, left, bottom, right);
  68 }
  69
  70 }  // namespace views