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// Copyright (c) 2012 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/views/border.h"
#include "base/logging.h"
#include "ui/gfx/canvas.h"
#include "ui/views/painter.h"
namespace views {
namespace {
// A simple border with different thicknesses on each side and single color.
class SidedSolidBorder : public Border {
public:
SidedSolidBorder(int top, int left, int bottom, int right, SkColor color);
virtual void Paint(const View& view, gfx::Canvas* canvas) const;
virtual void GetInsets(gfx::Insets* insets) const;
private:
int top_, left_, bottom_, right_;
SkColor color_;
gfx::Insets insets_;
DISALLOW_COPY_AND_ASSIGN(SidedSolidBorder);
};
SidedSolidBorder::SidedSolidBorder(int top, int left, int bottom, int right,
SkColor color)
: top_(top),
left_(left),
bottom_(bottom),
right_(right),
color_(color),
insets_(top, left, bottom, right) {
}
void SidedSolidBorder::Paint(const View& view, gfx::Canvas* canvas) const {
// Top border.
canvas->FillRect(gfx::Rect(0, 0, view.width(), insets_.top()), color_);
// Left border.
canvas->FillRect(gfx::Rect(0, 0, insets_.left(), view.height()), color_);
// Bottom border.
canvas->FillRect(gfx::Rect(0, view.height() - insets_.bottom(), view.width(),
insets_.bottom()), color_);
// Right border.
canvas->FillRect(gfx::Rect(view.width() - insets_.right(), 0, insets_.right(),
view.height()), color_);
}
void SidedSolidBorder::GetInsets(gfx::Insets* insets) const {
DCHECK(insets);
insets->Set(insets_.top(), insets_.left(), insets_.bottom(), insets_.right());
}
// A variation of SidedSolidBorder, where each side has the same thickness.
class SolidBorder : public SidedSolidBorder {
public:
SolidBorder(int thickness, SkColor color)
: SidedSolidBorder(thickness, thickness, thickness, thickness, color) {
}
private:
DISALLOW_COPY_AND_ASSIGN(SolidBorder);
};
class EmptyBorder : public Border {
public:
EmptyBorder(int top, int left, int bottom, int right)
: top_(top), left_(left), bottom_(bottom), right_(right) {}
virtual void Paint(const View& view, gfx::Canvas* canvas) const {}
virtual void GetInsets(gfx::Insets* insets) const {
DCHECK(insets);
insets->Set(top_, left_, bottom_, right_);
}
private:
int top_;
int left_;
int bottom_;
int right_;
DISALLOW_COPY_AND_ASSIGN(EmptyBorder);
};
class BorderPainter : public Border {
public:
BorderPainter(Painter* painter)
: painter_(painter) {
DCHECK(painter);
}
virtual ~BorderPainter() {
delete painter_;
}
void Paint(const View& view, gfx::Canvas* canvas) const {
Painter::PaintPainterAt(canvas, painter_, view.GetLocalBounds());
}
virtual void GetInsets(gfx::Insets* insets) const {
DCHECK(insets);
insets->Set(0, 0, 0, 0);
}
private:
Painter* painter_;
DISALLOW_COPY_AND_ASSIGN(BorderPainter);
};
} // namespace
Border::Border() {
}
Border::~Border() {
}
// static
Border* Border::CreateSolidBorder(int thickness, SkColor color) {
return new SolidBorder(thickness, color);
}
// static
Border* Border::CreateEmptyBorder(int top, int left, int bottom, int right) {
return new EmptyBorder(top, left, bottom, right);
}
// static
Border* Border::CreateSolidSidedBorder(int top, int left,
int bottom, int right,
SkColor color) {
return new SidedSolidBorder(top, left, bottom, right, color);
}
//static
Border* Border::CreateBorderPainter(Painter* painter) {
return new BorderPainter(painter);
}
} // namespace views
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