Home | History | Annotate | Download | only in filters
      1 /*
      2  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
      3  * Copyright (C) 2013 Google Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1. Redistributions of source code must retain the above
     10  *    copyright notice, this list of conditions and the following
     11  *    disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above
     13  *    copyright notice, this list of conditions and the following
     14  *    disclaimer in the documentation and/or other materials
     15  *    provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AS IS AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
     21  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     26  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     27  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #ifndef ReferenceFilter_h
     32 #define ReferenceFilter_h
     33 
     34 #include "core/platform/graphics/FloatRect.h"
     35 #include "core/platform/graphics/filters/Filter.h"
     36 #include "wtf/PassRefPtr.h"
     37 #include "wtf/RefPtr.h"
     38 
     39 namespace WebCore {
     40 
     41 class SourceGraphic;
     42 class FilterEffect;
     43 
     44 class ReferenceFilter: public Filter {
     45 public:
     46     static PassRefPtr<ReferenceFilter> create()
     47     {
     48         return adoptRef(new ReferenceFilter());
     49     }
     50 
     51     virtual FloatRect sourceImageRect() const { return FloatRect(); };
     52 
     53     void setLastEffect(PassRefPtr<FilterEffect>);
     54     FilterEffect* lastEffect() const { return m_lastEffect.get(); }
     55 
     56     SourceGraphic* sourceGraphic() const { return m_sourceGraphic.get(); }
     57 
     58 private:
     59     ReferenceFilter();
     60     ~ReferenceFilter();
     61 
     62     RefPtr<SourceGraphic> m_sourceGraphic;
     63     RefPtr<FilterEffect> m_lastEffect;
     64 };
     65 
     66 }
     67 
     68 #endif // ReferenceFilter_h
     69