1*b1cdbd2cSJim Jagielski /************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski 23*b1cdbd2cSJim Jagielski 24*b1cdbd2cSJim Jagielski #ifndef _SD_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX 25*b1cdbd2cSJim Jagielski #define _SD_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX 26*b1cdbd2cSJim Jagielski 27*b1cdbd2cSJim Jagielski #include <svx/IAccessibleViewForwarder.hxx> 28*b1cdbd2cSJim Jagielski 29*b1cdbd2cSJim Jagielski class SdrPaintView; 30*b1cdbd2cSJim Jagielski class OutputDevice; 31*b1cdbd2cSJim Jagielski 32*b1cdbd2cSJim Jagielski namespace accessibility { 33*b1cdbd2cSJim Jagielski 34*b1cdbd2cSJim Jagielski 35*b1cdbd2cSJim Jagielski /** <p>This class provides the means to transform between internal coordinates 36*b1cdbd2cSJim Jagielski and screen coordinates without giving direct access to the underlying 37*b1cdbd2cSJim Jagielski view. It represents a certain window. A call to 38*b1cdbd2cSJim Jagielski <method>GetVisArea</method> returns the corresponding visible 39*b1cdbd2cSJim Jagielski rectangle.</p> 40*b1cdbd2cSJim Jagielski 41*b1cdbd2cSJim Jagielski @attention 42*b1cdbd2cSJim Jagielski Note, that modifications of the underlying view that lead to 43*b1cdbd2cSJim Jagielski different transformations between internal and screen coordinates or 44*b1cdbd2cSJim Jagielski change the validity of the forwarder have to be signaled seperately. 45*b1cdbd2cSJim Jagielski */ 46*b1cdbd2cSJim Jagielski class AccessibleViewForwarder 47*b1cdbd2cSJim Jagielski : public IAccessibleViewForwarder 48*b1cdbd2cSJim Jagielski { 49*b1cdbd2cSJim Jagielski public: 50*b1cdbd2cSJim Jagielski //===== internal ======================================================== 51*b1cdbd2cSJim Jagielski 52*b1cdbd2cSJim Jagielski AccessibleViewForwarder (SdrPaintView* pView, OutputDevice& rDevice); 53*b1cdbd2cSJim Jagielski 54*b1cdbd2cSJim Jagielski virtual ~AccessibleViewForwarder (void); 55*b1cdbd2cSJim Jagielski 56*b1cdbd2cSJim Jagielski //===== IAccessibleViewforwarder ======================================== 57*b1cdbd2cSJim Jagielski 58*b1cdbd2cSJim Jagielski /** This method informs you about the state of the forwarder. Do not 59*b1cdbd2cSJim Jagielski use it when the returned value is <false/>. 60*b1cdbd2cSJim Jagielski 61*b1cdbd2cSJim Jagielski @return 62*b1cdbd2cSJim Jagielski Return <true/> if the view forwarder is valid and <false/> else. 63*b1cdbd2cSJim Jagielski */ 64*b1cdbd2cSJim Jagielski virtual sal_Bool IsValid (void) const; 65*b1cdbd2cSJim Jagielski 66*b1cdbd2cSJim Jagielski /** Returns the area of the underlying document that is visible in the 67*b1cdbd2cSJim Jagielski * corresponding window. 68*b1cdbd2cSJim Jagielski 69*b1cdbd2cSJim Jagielski @return 70*b1cdbd2cSJim Jagielski The rectangle of the visible part of the document. 71*b1cdbd2cSJim Jagielski */ 72*b1cdbd2cSJim Jagielski virtual Rectangle GetVisibleArea() const; 73*b1cdbd2cSJim Jagielski 74*b1cdbd2cSJim Jagielski /** Transform the specified point from internal coordinates to an 75*b1cdbd2cSJim Jagielski absolute screen position. 76*b1cdbd2cSJim Jagielski 77*b1cdbd2cSJim Jagielski @param rPoint 78*b1cdbd2cSJim Jagielski Point in internal coordinates. 79*b1cdbd2cSJim Jagielski 80*b1cdbd2cSJim Jagielski @return 81*b1cdbd2cSJim Jagielski The same point but in screen coordinates relative to the upper 82*b1cdbd2cSJim Jagielski left corner of the (current) screen. 83*b1cdbd2cSJim Jagielski */ 84*b1cdbd2cSJim Jagielski virtual Point LogicToPixel (const Point& rPoint) const; 85*b1cdbd2cSJim Jagielski 86*b1cdbd2cSJim Jagielski /** Transform the specified size from internal coordinates to a screen 87*b1cdbd2cSJim Jagielski * position. 88*b1cdbd2cSJim Jagielski 89*b1cdbd2cSJim Jagielski @param rSize 90*b1cdbd2cSJim Jagielski Size in internal coordinates. 91*b1cdbd2cSJim Jagielski 92*b1cdbd2cSJim Jagielski @return 93*b1cdbd2cSJim Jagielski The same size but in screen coordinates. 94*b1cdbd2cSJim Jagielski */ 95*b1cdbd2cSJim Jagielski virtual Size LogicToPixel (const Size& rSize) const; 96*b1cdbd2cSJim Jagielski 97*b1cdbd2cSJim Jagielski /** Transform the specified point from absolute screen coordinates to 98*b1cdbd2cSJim Jagielski internal coordinates. 99*b1cdbd2cSJim Jagielski 100*b1cdbd2cSJim Jagielski @param rPoint 101*b1cdbd2cSJim Jagielski Point in screen coordinates relative to the upper left corner of 102*b1cdbd2cSJim Jagielski the (current) screen. 103*b1cdbd2cSJim Jagielski 104*b1cdbd2cSJim Jagielski @return 105*b1cdbd2cSJim Jagielski The same point but in internal coordinates. 106*b1cdbd2cSJim Jagielski */ 107*b1cdbd2cSJim Jagielski virtual Point PixelToLogic (const Point& rPoint) const; 108*b1cdbd2cSJim Jagielski 109*b1cdbd2cSJim Jagielski /** Transform the specified Size from screen coordinates to internal 110*b1cdbd2cSJim Jagielski coordinates. 111*b1cdbd2cSJim Jagielski 112*b1cdbd2cSJim Jagielski @param rSize 113*b1cdbd2cSJim Jagielski Size in screen coordinates. 114*b1cdbd2cSJim Jagielski 115*b1cdbd2cSJim Jagielski @return 116*b1cdbd2cSJim Jagielski The same size but in internal coordinates. 117*b1cdbd2cSJim Jagielski */ 118*b1cdbd2cSJim Jagielski virtual Size PixelToLogic (const Size& rSize) const; 119*b1cdbd2cSJim Jagielski 120*b1cdbd2cSJim Jagielski protected: 121*b1cdbd2cSJim Jagielski SdrPaintView* mpView; 122*b1cdbd2cSJim Jagielski sal_uInt16 mnWindowId; 123*b1cdbd2cSJim Jagielski OutputDevice& mrDevice; 124*b1cdbd2cSJim Jagielski 125*b1cdbd2cSJim Jagielski private: 126*b1cdbd2cSJim Jagielski AccessibleViewForwarder (AccessibleViewForwarder&); 127*b1cdbd2cSJim Jagielski AccessibleViewForwarder& operator= (AccessibleViewForwarder&); 128*b1cdbd2cSJim Jagielski }; 129*b1cdbd2cSJim Jagielski 130*b1cdbd2cSJim Jagielski } // end of namespace accessibility 131*b1cdbd2cSJim Jagielski 132*b1cdbd2cSJim Jagielski #endif 133