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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 WEBCURSOR_H__
#define WEBCURSOR_H__
#include "skia/include/SkBitmap.h"
// This class provides the functionality of a generic cursor type. The intent
// is to stay away from platform specific code here. We do have win32 specific
// functionality to retreive a HCURSOR from a cursor type.
// TODO(iyengar) : Win32 specific functionality needs to be taken out of this
// object
class WebCursor
{
public:
// Supported cursor types.
enum Type {
ARROW,
IBEAM,
WAIT,
CROSS,
UPARROW,
SIZE,
ICON,
SIZENWSE,
SIZENESW,
SIZEWE,
SIZENS,
SIZEALL,
NO,
HAND,
APPSTARTING,
HELP,
ALIAS,
CELL,
COLRESIZE,
COPYCUR,
ROWRESIZE,
VERTICALTEXT,
ZOOMIN,
ZOOMOUT,
CUSTOM
};
WebCursor();
WebCursor(Type cursor_type);
WebCursor(const SkBitmap* bitmap, int hotspot_x, int hotspot_y);
~WebCursor();
WebCursor(const WebCursor& other);
WebCursor& operator = (const WebCursor&);
Type type() const { return type_; };
int hotspot_x() const { return hotspot_x_; }
int hotspot_y() const { return hotspot_y_; }
const SkBitmap& bitmap() const { return bitmap_; }
void set_type(Type cursor_type) {
type_ = cursor_type;
}
void set_bitmap(const SkBitmap& bitmap) {
bitmap_ = bitmap;
}
void set_hotspot(int hotspot_x, int hotspot_y) {
hotspot_x_ = hotspot_x;
hotspot_y_ = hotspot_x;
}
// Returns the cursor handle. If the cursor type is a win32 or safari
// cursor, we use LoadCursor to load the cursor.
// Returns NULL on error.
HCURSOR GetCursor(HINSTANCE module_handle) const;
// If the underlying cursor type is a custom cursor, this function converts
// the SkBitmap to a cursor and returns the same. The responsiblity of
// freeing the cursor handle lies with the caller.
// Returns NULL on error.
HCURSOR GetCustomCursor() const;
// Returns true if the passed in SkBitmap is the same as the the
// current SkBitmap. We use memcmp to compare the two bitmaps.
bool IsSameBitmap(const SkBitmap& bitmap) const;
// Returns true if the current cursor object contains the same
// cursor as the cursor object passed in. If the current cursor
// is a custom cursor, we also compare the bitmaps to verify
// whether they are equal.
bool IsEqual(const WebCursor& other) const;
protected:
Type type_;
int hotspot_x_;
int hotspot_y_;
SkBitmap bitmap_;
};
#endif // WEBCURSOR_H__
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