ben@chromium.org
0b74269f91
Rename files too. TBR=brettw http://crbug.com/11387 Review URL: http://codereview.chromium.org/113443 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16148 0039d316-1c4b-4281-b951-d872f2087c98
94 linhas
3.0 KiB
C++
94 linhas
3.0 KiB
C++
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef VIEWS_BACKGROUND_H_
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#define VIEWS_BACKGROUND_H_
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#include "build/build_config.h"
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#if defined(OS_WIN)
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#include <windows.h>
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#endif // defined(OS_WIN)
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#include "base/basictypes.h"
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#include "third_party/skia/include/core/SkColor.h"
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namespace gfx {
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class Canvas;
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}
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namespace views {
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class Painter;
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class View;
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/////////////////////////////////////////////////////////////////////////////
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//
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// Background class
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//
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// A background implements a way for views to paint a background. The
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// background can be either solid or based on a gradient. Of course,
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// Background can be subclassed to implement various effects.
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//
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// Any View can have a background. See View::SetBackground() and
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// View::PaintBackground()
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//
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/////////////////////////////////////////////////////////////////////////////
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class Background {
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public:
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Background();
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virtual ~Background();
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// Creates a background that fills the canvas in the specified color.
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static Background* CreateSolidBackground(const SkColor& color);
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// Creates a background that fills the canvas in the specified color.
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static Background* CreateSolidBackground(int r, int g, int b) {
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return CreateSolidBackground(SkColorSetRGB(r, g, b));
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}
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// Creates a background that fills the canvas in the specified color.
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static Background* CreateSolidBackground(int r, int g, int b, int a) {
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return CreateSolidBackground(SkColorSetARGB(a, r, g, b));
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}
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// Creates a background that contains a vertical gradient that varies
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// from |color1| to |color2|
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static Background* CreateVerticalGradientBackground(const SkColor& color1,
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const SkColor& color2);
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// Creates Chrome's standard panel background
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static Background* CreateStandardPanelBackground();
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// Creates a Background from the specified Painter. If owns_painter is
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// true, the Painter is deleted when the Border is deleted.
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static Background* CreateBackgroundPainter(bool owns_painter,
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Painter* painter);
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// Render the background for the provided view
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virtual void Paint(gfx::Canvas* canvas, View* view) const = 0;
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// Set a solid, opaque color to be used when drawing backgrounds of native
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// controls. Unfortunately alpha=0 is not an option.
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void SetNativeControlColor(SkColor color);
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#if defined(OS_WIN)
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// TODO(port): Make GetNativeControlBrush portable (currently uses HBRUSH).
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// Get the brush that was specified by SetNativeControlColor
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HBRUSH GetNativeControlBrush() const { return native_control_brush_; };
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#endif // defined(OS_WIN)
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private:
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#if defined(OS_WIN)
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// TODO(port): Create portable replacement for HBRUSH.
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HBRUSH native_control_brush_;
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#endif // defined(OS_WIN)
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DISALLOW_COPY_AND_ASSIGN(Background);
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};
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} // namespace views
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#endif // VIEWS_BACKGROUND_H_
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