| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _SD_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX |
| #define _SD_ACCESSIBILITY_ACCESSIBLE_VIEW_FORWARDER_HXX |
| |
| #include <svx/IAccessibleViewForwarder.hxx> |
| |
| class SdrPaintView; |
| class OutputDevice; |
| |
| namespace accessibility { |
| |
| |
| /** <p>This class provides the means to transform between internal coordinates |
| and screen coordinates without giving direct access to the underlying |
| view. It represents a certain window. A call to |
| <method>GetVisArea</method> returns the corresponding visible |
| rectangle.</p> |
| |
| @attention |
| Note, that modifications of the underlying view that lead to |
| different transformations between internal and screen coordinates or |
| change the validity of the forwarder have to be signaled seperately. |
| */ |
| class AccessibleViewForwarder |
| : public IAccessibleViewForwarder |
| { |
| public: |
| //===== internal ======================================================== |
| |
| AccessibleViewForwarder (SdrPaintView* pView, OutputDevice& rDevice); |
| |
| virtual ~AccessibleViewForwarder (void); |
| |
| //===== IAccessibleViewforwarder ======================================== |
| |
| /** This method informs you about the state of the forwarder. Do not |
| use it when the returned value is <false/>. |
| |
| @return |
| Return <true/> if the view forwarder is valid and <false/> else. |
| */ |
| virtual sal_Bool IsValid (void) const; |
| |
| /** Returns the area of the underlying document that is visible in the |
| * corresponding window. |
| |
| @return |
| The rectangle of the visible part of the document. |
| */ |
| virtual Rectangle GetVisibleArea() const; |
| |
| /** Transform the specified point from internal coordinates to an |
| absolute screen position. |
| |
| @param rPoint |
| Point in internal coordinates. |
| |
| @return |
| The same point but in screen coordinates relative to the upper |
| left corner of the (current) screen. |
| */ |
| virtual Point LogicToPixel (const Point& rPoint) const; |
| |
| /** Transform the specified size from internal coordinates to a screen |
| * position. |
| |
| @param rSize |
| Size in internal coordinates. |
| |
| @return |
| The same size but in screen coordinates. |
| */ |
| virtual Size LogicToPixel (const Size& rSize) const; |
| |
| /** Transform the specified point from absolute screen coordinates to |
| internal coordinates. |
| |
| @param rPoint |
| Point in screen coordinates relative to the upper left corner of |
| the (current) screen. |
| |
| @return |
| The same point but in internal coordinates. |
| */ |
| virtual Point PixelToLogic (const Point& rPoint) const; |
| |
| /** Transform the specified Size from screen coordinates to internal |
| coordinates. |
| |
| @param rSize |
| Size in screen coordinates. |
| |
| @return |
| The same size but in internal coordinates. |
| */ |
| virtual Size PixelToLogic (const Size& rSize) const; |
| |
| protected: |
| SdrPaintView* mpView; |
| sal_uInt16 mnWindowId; |
| OutputDevice& mrDevice; |
| |
| private: |
| AccessibleViewForwarder (AccessibleViewForwarder&); |
| AccessibleViewForwarder& operator= (AccessibleViewForwarder&); |
| }; |
| |
| } // end of namespace accessibility |
| |
| #endif |