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/compositor/paint_recorder.h"
  11 #include "ui/gfx/canvas.h"
  12 #include "ui/gfx/geometry/rect.h"
  13 #include "ui/gfx/geometry/size.h"
  14 #include "ui/gfx/image/image.h"
  15 #include "ui/gfx/image/image_skia.h"
  16
  17 namespace aura_extra {
  18
  19 ImageWindowDelegate::ImageWindowDelegate()
  20     : background_color_(SK_ColorWHITE),
  21       size_mismatch_(false) {
  22 }
  23
  24 ImageWindowDelegate::~ImageWindowDelegate() {
  25 }
  26
  27 void ImageWindowDelegate::SetImage(const gfx::Image& image) {
  28   image_ = image;
  29   if (!window_size_.IsEmpty() && !image_.IsEmpty())
  30     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  31 }
  32
  33 gfx::Size ImageWindowDelegate::GetMinimumSize() const {
  34   return gfx::Size();
  35 }
  36
  37 gfx::Size ImageWindowDelegate::GetMaximumSize() const {
  38   return gfx::Size();
  39 }
  40
  41 void ImageWindowDelegate::OnBoundsChanged(const gfx::Rect& old_bounds,
  42                                           const gfx::Rect& new_bounds) {
  43   window_size_ = new_bounds.size();
  44   if (!image_.IsEmpty())
  45     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  46 }
  47
  48 gfx::NativeCursor ImageWindowDelegate::GetCursor(const gfx::Point& point) {
  49   return gfx::kNullCursor;
  50 }
  51
  52 int ImageWindowDelegate::GetNonClientComponent(const gfx::Point& point) const {
  53   return HTNOWHERE;
  54 }
  55
  56 bool ImageWindowDelegate::ShouldDescendIntoChildForEventHandling(
  57     aura::Window* child,
  58     const gfx::Point& location) {
  59   return false;
  60 }
  61
  62 bool ImageWindowDelegate::CanFocus() {
  63   return false;
  64 }
  65
  66 void ImageWindowDelegate::OnCaptureLost() {
  67 }
  68
  69 void ImageWindowDelegate::OnPaint(const ui::PaintContext& context) {
  70   ui::PaintRecorder recorder(context, window_size_);
  71   if (background_color_ != SK_ColorTRANSPARENT &&
  72       (image_.IsEmpty() || size_mismatch_ || !offset_.IsZero())) {
  73     recorder.canvas()->DrawColor(background_color_);
  74   }
  75   if (!image_.IsEmpty()) {
  76     recorder.canvas()->DrawImageInt(image_.AsImageSkia(), offset_.x(),
  77                                     offset_.y());
  78   }
  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