Add chrome to the repository.

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

1 files changed, 145 insertions, 0 deletions

diff --git a/chrome/views/painter.h b/chrome/views/painter.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_PAINTER_H__
+#define CHROME_VIEWS_PAINTER_H__
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "skia/include/SkColor.h"
+
+class ChromeCanvas;
+class SkBitmap;
+
+namespace ChromeViews {
+
+// Painter, as the name implies, is responsible for painting in a particular
+// region. Think of Painter as a Border or Background that can be painted
+// in any region of a View.
+class Painter {
+ public:
+  // A convenience method for painting a Painter in a particular region.
+  // This translates the canvas to x/y and paints the painter.
+  static void PaintPainterAt(int x, int y, int w, int h,
+                             ChromeCanvas* canvas, Painter* painter);
+
+  // Creates a painter that draws a gradient between the two colors.
+  static Painter* CreateHorizontalGradient(SkColor c1, SkColor c2);
+  static Painter* CreateVerticalGradient(SkColor c1, SkColor c2);
+
+  virtual ~Painter() {}
+
+  // Paints the painter in the specified region.
+  virtual void Paint(int w, int h, ChromeCanvas* canvas) = 0;
+};
+
+// ImagePainter paints 8 (or 9) images into a box. The four corner
+// images are drawn at the size of the image, the top/left/bottom/right
+// images are tiled to fit the area, and the center (if rendered) is
+// stretched.
+class ImagePainter : public Painter {
+ public:
+  enum BorderElements {
+    BORDER_TOP_LEFT = 0,
+    BORDER_TOP,
+    BORDER_TOP_RIGHT,
+    BORDER_RIGHT,
+    BORDER_BOTTOM_RIGHT,
+    BORDER_BOTTOM,
+    BORDER_BOTTOM_LEFT,
+    BORDER_LEFT,
+    BORDER_CENTER
+  };
+
+  // Constructs a new ImagePainter loading the specified image names.
+  // The images must be in the order defined by the BorderElements.
+  // If draw_center is false, there must be 8 image names, if draw_center
+  // is true, there must be 9 image names with the last giving the name
+  // of the center image.
+  ImagePainter(const int image_resource_names[],
+               bool draw_center);
+
+  virtual ~ImagePainter() {}
+
+  // Paints the images.
+  virtual void Paint(int w, int h, ChromeCanvas* canvas);
+
+  // Returns the specified image. The returned image should NOT be deleted.
+  SkBitmap* GetImage(BorderElements element) {
+    return images_[element];
+  }
+
+ private:
+  bool tile_;
+  bool draw_center_;
+  bool tile_center_;
+  // NOTE: the images are owned by ResourceBundle. Don't free them.
+  std::vector<SkBitmap*> images_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(ImagePainter);
+};
+
+// HorizontalPainter paints 3 images into a box: left, center and right. The left
+// and right images are drawn to size at the left/right edges of the region.
+// The center is tiled in the remaining space. All images must have the same
+// height.
+class HorizontalPainter : public Painter {
+ public:
+  // Constructs a new HorizontalPainter loading the specified image names.
+  // The images must be in the order left, right and center.
+  explicit HorizontalPainter(const int image_resource_names[]);
+
+  virtual ~HorizontalPainter() {}
+
+  // Paints the images.
+  virtual void Paint(int w, int h, ChromeCanvas* canvas);
+
+  // Height of the images.
+  int GetHeight() const { return height_; }
+
+ private:
+  // The image chunks.
+  enum BorderElements {
+    LEFT,
+    CENTER,
+    RIGHT
+  };
+
+  // The height.
+  int height_;
+  // NOTE: the images are owned by ResourceBundle. Don't free them.
+  SkBitmap* images_[3];
+
+  DISALLOW_EVIL_CONSTRUCTORS(HorizontalPainter);
+};
+
+}
+
+#endif  // CHROME_VIEWS_PAINTER_H__