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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/message_center/views/proportional_image_view.h"
#include "ui/gfx/canvas.h"
#include "ui/message_center/message_center_style.h"
namespace message_center {
ProportionalImageView::ProportionalImageView(const gfx::ImageSkia& image,
const gfx::Size& max_size)
: image_(image), max_size_(max_size) {}
ProportionalImageView::~ProportionalImageView() {}
gfx::Size ProportionalImageView::GetPreferredSize() const { return max_size_; }
int ProportionalImageView::GetHeightForWidth(int width) const {
return max_size_.height();
}
void ProportionalImageView::OnPaint(gfx::Canvas* canvas) {
views::View::OnPaint(canvas);
gfx::Size draw_size = GetImageDrawingSize();
if (draw_size.IsEmpty())
return;
gfx::Rect draw_bounds = GetContentsBounds();
draw_bounds.ClampToCenteredSize(draw_size);
gfx::Size image_size(image_.size());
if (image_size == draw_size) {
canvas->DrawImageInt(image_, draw_bounds.x(), draw_bounds.y());
} else {
SkPaint paint;
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
// This call resizes the image while drawing into the canvas.
canvas->DrawImageInt(
image_,
0, 0, image_size.width(), image_size.height(),
draw_bounds.x(), draw_bounds.y(), draw_size.width(), draw_size.height(),
true,
paint);
}
}
gfx::Size ProportionalImageView::GetImageDrawingSize() {
if (!visible())
return gfx::Size();
return message_center::GetImageSizeForContainerSize(
GetContentsBounds().size(), image_.size());
}
} // namespace message_center
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