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// Copyright 2015 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/base/cocoa/three_part_image.h"
#include "base/logging.h"
#include "ui/base/resource/resource_bundle.h"
namespace ui {
ThreePartImage::ThreePartImage(NSImage* left, NSImage* middle, NSImage* right) {
DCHECK(left);
DCHECK(right);
leftImage_.reset([left retain]);
rightImage_.reset([right retain]);
leftSize_ = [leftImage_ size];
rightSize_ = [rightImage_ size];
if (middle) {
middleImage_.reset([middle retain]);
}
}
ThreePartImage::~ThreePartImage() {
}
NSRect ThreePartImage::GetLeftRect(NSRect bounds) const {
NSRect left, right;
NSDivideRect(bounds, &left, &right, leftSize_.width, NSMinXEdge);
return left;
}
NSRect ThreePartImage::GetMiddleRect(NSRect bounds) const {
NSRect left, middle, right;
NSDivideRect(bounds, &left, &middle, leftSize_.width, NSMinXEdge);
NSDivideRect(middle, &right, &middle, rightSize_.width, NSMaxXEdge);
return middle;
}
NSRect ThreePartImage::GetRightRect(NSRect bounds) const {
NSRect left, right;
NSDivideRect(bounds, &right, &left, rightSize_.width, NSMaxXEdge);
return right;
}
void ThreePartImage::DrawInRect(NSRect rect,
NSCompositingOperation op,
CGFloat alpha) const {
rect.size.height = leftSize_.height;
NSDrawThreePartImage(rect, leftImage_, middleImage_, rightImage_,
NO, op, alpha, NO);
}
BOOL ThreePartImage::HitTest(NSPoint point, NSRect bounds) const {
NSRect middleRect = GetMiddleRect(bounds);
if (NSPointInRect(point, middleRect))
return middleImage_ ? HitTestImage(point, middleImage_, middleRect) : YES;
NSRect leftRect = GetLeftRect(bounds);
if (NSPointInRect(point, leftRect))
return HitTestImage(point, leftImage_, leftRect);
NSRect rightRect = GetRightRect(bounds);
if (NSPointInRect(point, rightRect))
return HitTestImage(point, rightImage_, rightRect);
return NO;
}
BOOL ThreePartImage::HitTestImage(NSPoint point,
NSImage* image,
NSRect imageRect) const {
NSRect pointRect = NSMakeRect(point.x, point.y, 1, 1);
return [image hitTestRect:pointRect
withImageDestinationRect:imageRect
context:nil
hints:nil
flipped:NO];
}
} // namespace ui
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