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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/views/profiles/profile_indicator_icon.h"
#include "chrome/browser/profiles/profile_avatar_icon_util.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/gfx/canvas.h"
ProfileIndicatorIcon::ProfileIndicatorIcon() {
// In RTL mode, the incognito icon should be looking the opposite direction.
SetFlipCanvasOnPaintForRTLUI(true);
}
ProfileIndicatorIcon::~ProfileIndicatorIcon() = default;
void ProfileIndicatorIcon::OnPaint(gfx::Canvas* canvas) {
if (base_icon_.IsEmpty()) {
return;
}
if (old_height_ != height() || modified_icon_.isNull()) {
old_height_ = height();
modified_icon_ =
*profiles::GetAvatarIconForTitleBar(base_icon_, width(), height())
.ToImageSkia();
}
// Scale the image to fit the width of the button.
int dst_width = std::min(modified_icon_.width(), width());
// Truncate rather than rounding, so that for odd widths we put the extra
// pixel on the left.
int dst_x = (width() - dst_width) / 2;
// Scale the height and maintain aspect ratio. This means that the
// icon may not fit in the view. That's ok, we just vertically center it.
float scale = static_cast<float>(dst_width) /
static_cast<float>(modified_icon_.width());
// Round here so that we minimize the aspect ratio drift.
int dst_height = std::round(modified_icon_.height() * scale);
// Round rather than truncating, so that for odd heights we select an extra
// pixel below the image center rather than above. This is because the
// incognito image has shadows at the top that make the apparent center below
// the real center.
int dst_y = std::round((height() - dst_height) / 2.0f);
canvas->DrawImageInt(modified_icon_, 0, 0, modified_icon_.width(),
modified_icon_.height(), dst_x, dst_y, dst_width,
dst_height, false);
}
void ProfileIndicatorIcon::SetIcon(const gfx::Image& icon) {
base_icon_ = icon;
modified_icon_ = gfx::ImageSkia();
SchedulePaint();
}
BEGIN_METADATA(ProfileIndicatorIcon)
END_METADATA
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