ui/views/animation/ink_drop_delegate.cc

   1 // Copyright 2015 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/animation/ink_drop_delegate.h"
   6
   7 #include "third_party/skia/include/core/SkPaint.h"
   8 #include "ui/compositor/layer.h"
   9 #include "ui/compositor/paint_recorder.h"
  10 #include "ui/gfx/canvas.h"
  11
  12 namespace views {
  13
  14 InkDropDelegate::InkDropDelegate(ui::Layer* layer,
  15                                  SkColor color,
  16                                  int circle_radius,
  17                                  int rounded_rect_corner_radius)
  18     : layer_(layer),
  19       color_(color),
  20       should_render_circle_(true),
  21       circle_radius_(circle_radius),
  22       rounded_rect_corner_radius_(rounded_rect_corner_radius) {}
  23
  24 InkDropDelegate::~InkDropDelegate() {}
  25
  26 void InkDropDelegate::OnPaintLayer(const ui::PaintContext& context) {
  27   SkPaint paint;
  28   paint.setColor(color_);
  29   paint.setFlags(SkPaint::kAntiAlias_Flag);
  30   paint.setStyle(SkPaint::kFill_Style);
  31
  32   gfx::Rect bounds = layer_->bounds();
  33
  34   ui::PaintRecorder recorder(context, layer_->size());
  35   gfx::Canvas* canvas = recorder.canvas();
  36   if (should_render_circle()) {
  37     gfx::Point midpoint(bounds.width() * 0.5f, bounds.height() * 0.5f);
  38     canvas->DrawCircle(midpoint, circle_radius_, paint);
  39   } else {
  40     canvas->DrawRoundRect(bounds, rounded_rect_corner_radius_, paint);
  41   }
  42 }
  43
  44 void InkDropDelegate::OnDelegatedFrameDamage(
  45     const gfx::Rect& damage_rect_in_dip) {}
  46
  47 void InkDropDelegate::OnDeviceScaleFactorChanged(float device_scale_factor) {}
  48
  49 base::Closure InkDropDelegate::PrepareForLayerBoundsChange() {
  50   return base::Closure();
  51 }
  52
  53 }  // namespace views