ui/aura_extra/image_window_delegate.cc

   1 // Copyright (c) 2013 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/aura_extra/image_window_delegate.h"
   6
   7 #include "ui/base/cursor/cursor.h"
   8 #include "ui/base/hit_test.h"
   9 #include "ui/compositor/compositor.h"
  10 #include "ui/gfx/canvas.h"
  11 #include "ui/gfx/geometry/rect.h"
  12 #include "ui/gfx/geometry/size.h"
  13 #include "ui/gfx/image/image.h"
  14 #include "ui/gfx/image/image_skia.h"
  15
  16 namespace aura_extra {
  17
  18 ImageWindowDelegate::ImageWindowDelegate()
  19     : background_color_(SK_ColorWHITE),
  20       size_mismatch_(false) {
  21 }
  22
  23 ImageWindowDelegate::~ImageWindowDelegate() {
  24 }
  25
  26 void ImageWindowDelegate::SetImage(const gfx::Image& image) {
  27   image_ = image;
  28   if (!window_size_.IsEmpty() && !image_.IsEmpty())
  29     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  30 }
  31
  32 gfx::Size ImageWindowDelegate::GetMinimumSize() const {
  33   return gfx::Size();
  34 }
  35
  36 gfx::Size ImageWindowDelegate::GetMaximumSize() const {
  37   return gfx::Size();
  38 }
  39
  40 void ImageWindowDelegate::OnBoundsChanged(const gfx::Rect& old_bounds,
  41                                           const gfx::Rect& new_bounds) {
  42   window_size_ = new_bounds.size();
  43   if (!image_.IsEmpty())
  44     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  45 }
  46
  47 ui::TextInputClient* ImageWindowDelegate::GetFocusedTextInputClient() {
  48   return nullptr;
  49 }
  50
  51 gfx::NativeCursor ImageWindowDelegate::GetCursor(const gfx::Point& point) {
  52   return gfx::kNullCursor;
  53 }
  54
  55 int ImageWindowDelegate::GetNonClientComponent(const gfx::Point& point) const {
  56   return HTNOWHERE;
  57 }
  58
  59 bool ImageWindowDelegate::ShouldDescendIntoChildForEventHandling(
  60     aura::Window* child,
  61     const gfx::Point& location) {
  62   return false;
  63 }
  64
  65 bool ImageWindowDelegate::CanFocus() {
  66   return false;
  67 }
  68
  69 void ImageWindowDelegate::OnCaptureLost() {
  70 }
  71
  72 void ImageWindowDelegate::OnPaint(gfx::Canvas* canvas) {
  73   if (background_color_ != SK_ColorTRANSPARENT &&
  74       (image_.IsEmpty() || size_mismatch_ || !offset_.IsZero())) {
  75     canvas->DrawColor(background_color_);
  76   }
  77   if (!image_.IsEmpty())
  78     canvas->DrawImageInt(image_.AsImageSkia(), offset_.x(), offset_.y());
  79 }
  80
  81 void ImageWindowDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
  82 }
  83
  84 void ImageWindowDelegate::OnWindowDestroying(aura::Window* window) {
  85 }
  86
  87 void ImageWindowDelegate::OnWindowDestroyed(aura::Window* window) {
  88   delete this;
  89 }
  90
  91 void ImageWindowDelegate::OnWindowTargetVisibilityChanged(bool visible) {
  92 }
  93
  94 bool ImageWindowDelegate::HasHitTestMask() const {
  95   return false;
  96 }
  97
  98 void ImageWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
  99 }
 100
 101 }  // namespace aura_extra