Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 104 insertions, 0 deletions

diff --git a/chrome/views/background.h b/chrome/views/background.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CHROME_VIEWS_BACKGROUND_H__
+#define CHROME_VIEWS_BACKGROUND_H__
+
+#include <windows.h>
+
+#include "base/basictypes.h"
+#include "SkColor.h"
+
+class ChromeCanvas;
+
+namespace ChromeViews {
+
+class Painter;
+class View;
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Background class
+//
+// A background implements a way for views to paint a background. The
+// background can be either solid or based on a gradient. Of course,
+// Background can be subclassed to implement various effects.
+//
+// Any View can have a background. See View::SetBackground() and
+// View::PaintBackground()
+//
+/////////////////////////////////////////////////////////////////////////////
+class Background {
+ public:
+  Background();
+  virtual ~Background();
+
+  // Creates a background that fills the canvas in the specified color.
+  static Background* CreateSolidBackground(const SkColor& color);
+
+  // Creates a background that fills the canvas in the specified color.
+  static Background* CreateSolidBackground(int r, int g, int b) {
+    return CreateSolidBackground(SkColorSetRGB(r, g, b));
+  }
+
+  // Creates a background that fills the canvas in the specified color.
+  static Background* CreateSolidBackground(int r, int g, int b, int a) {
+    return CreateSolidBackground(SkColorSetARGB(a, r, g, b));
+  }
+
+  // Creates a background that contains a vertical gradient that varies
+  // from |color1| to |color2|
+  static Background* CreateVerticalGradientBackground(const SkColor& color1,
+                                                      const SkColor& color2);
+
+  // Creates Chrome's standard panel background
+  static Background* CreateStandardPanelBackground();
+
+  // Creates a Background from the specified Painter. If owns_painter is
+  // true, the Painter is deleted when the Border is deleted.
+  static Background* CreateBackgroundPainter(bool owns_painter,
+                                             Painter* painter);
+
+  // Render the background for the provided view
+  virtual void Paint(ChromeCanvas* canvas, View* view) const = 0;
+
+  // Set a solid, opaque color to be used when drawing backgrounds of native
+  // controls.  Unfortunately alpha=0 is not an option.
+  void SetNativeControlColor(SkColor color);
+
+  // Get the brush that was specified by SetNativeControlColor
+  HBRUSH GetNativeControlBrush() const { return native_control_brush_; };
+
+ private:
+  HBRUSH native_control_brush_;
+  DISALLOW_EVIL_CONSTRUCTORS(Background);
+};
+
+}
+#endif  // CHROME_VIEWS_BACKGROUND_H__