1*2d788491SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*2d788491SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*2d788491SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*2d788491SAndrew Rist * distributed with this work for additional information 6*2d788491SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*2d788491SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*2d788491SAndrew Rist * "License"); you may not use this file except in compliance 9*2d788491SAndrew Rist * with the License. You may obtain a copy of the License at 10cdf0e10cSrcweir * 11*2d788491SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12cdf0e10cSrcweir * 13*2d788491SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*2d788491SAndrew Rist * software distributed under the License is distributed on an 15*2d788491SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*2d788491SAndrew Rist * KIND, either express or implied. See the License for the 17*2d788491SAndrew Rist * specific language governing permissions and limitations 18*2d788491SAndrew Rist * under the License. 19cdf0e10cSrcweir * 20*2d788491SAndrew Rist *************************************************************/ 21*2d788491SAndrew Rist 22*2d788491SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef _CPPCANVAS_BITMAPCANVAS_HXX 25cdf0e10cSrcweir #define _CPPCANVAS_BITMAPCANVAS_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <sal/types.h> 28cdf0e10cSrcweir #include <osl/diagnose.h> 29cdf0e10cSrcweir 30cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 31cdf0e10cSrcweir #include <basegfx/vector/b2isize.hxx> 32cdf0e10cSrcweir #include <cppcanvas/canvas.hxx> 33cdf0e10cSrcweir 34cdf0e10cSrcweir 35cdf0e10cSrcweir /* Definition of BitmapCanvas */ 36cdf0e10cSrcweir 37cdf0e10cSrcweir namespace cppcanvas 38cdf0e10cSrcweir { 39cdf0e10cSrcweir class BitmapCanvas; 40cdf0e10cSrcweir 41cdf0e10cSrcweir // forward declaration, since cloneBitmapCanvas() also references BitmapCanvas 42cdf0e10cSrcweir typedef ::boost::shared_ptr< BitmapCanvas > BitmapCanvasSharedPtr; 43cdf0e10cSrcweir 44cdf0e10cSrcweir /** BitmapCanvas interface 45cdf0e10cSrcweir */ 46cdf0e10cSrcweir class BitmapCanvas : public virtual Canvas 47cdf0e10cSrcweir { 48cdf0e10cSrcweir public: 49cdf0e10cSrcweir virtual ::basegfx::B2ISize getSize() const = 0; 50cdf0e10cSrcweir 51cdf0e10cSrcweir // shared_ptr does not allow for covariant return types cloneBitmapCanvas() const52cdf0e10cSrcweir BitmapCanvasSharedPtr cloneBitmapCanvas() const 53cdf0e10cSrcweir { 54cdf0e10cSrcweir BitmapCanvasSharedPtr p( ::boost::dynamic_pointer_cast< BitmapCanvas >(this->clone()) ); 55cdf0e10cSrcweir OSL_ENSURE(p.get(), "BitmapCanvas::cloneBitmapCanvas(): dynamic cast failed"); 56cdf0e10cSrcweir return p; 57cdf0e10cSrcweir } 58cdf0e10cSrcweir }; 59cdf0e10cSrcweir 60cdf0e10cSrcweir } 61cdf0e10cSrcweir 62cdf0e10cSrcweir #endif /* _CPPCANVAS_BITMAPCANVAS_HXX */ 63