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00001 /******************************************************************************** 00002 * * 00003 * Layout container object * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 2003 by Mathew Robertson. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or * 00009 * modify it under the terms of the GNU Lesser General Public * 00010 * License as published by the Free Software Foundation; either * 00011 * version 2.1 of the License, or (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00016 * Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public * 00019 * License along with this library; if not, write to the Free Software * 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * 00021 *********************************************************************************/ 00022 #ifndef FXLAYOUT_H 00023 #define FXLAYOUT_H 00024 00025 #ifndef FXPACKER_H 00026 #include <fox/FXPacker.h> 00027 using namespace FX; 00028 #endif 00029 namespace FXEX { 00030 00031 /** 00032 * TODO - this is meant to be a generalised layout engine 00033 * ie is meant to be a constraint resolver to figure out how to layout it child widgets. 00034 */ 00035 class FXAPI FXLayout : public FXPacker { 00036 FXDECLARE(FXLayout) 00037 00038 private: 00039 FXStream *stream; 00040 FXObjectList *objectList; 00041 FXVerticalFrame *mainframe; 00042 FXbool docOpen; 00043 FXString buffer; 00044 FXint justification; 00045 00046 protected: 00047 /// for serialization 00048 FXLayout() : FXPacker() {} 00049 00050 public: 00051 enum { 00052 ID_LAYOUT=FXPacker::ID_LAST, 00053 ID_LAST 00054 }; 00055 00056 public: 00057 long onLayout(FXObject*,FXSelector,void*); 00058 long onDocumentBegin(FXObject*,FXSelector,void*); 00059 long onDocumentEnd(FXObject*,FXSelector,void*); 00060 long onText(FXObject*,FXSelector,void*); 00061 long onImg(FXObject*,FXSelector,void*); 00062 long onCenterBegin(FXObject*,FXSelector,void*); 00063 long onCenterEnd(FXObject*,FXSelector,void*); 00064 long onHrefBegin(FXObject*,FXSelector,void*); 00065 long onHrefEnd(FXObject*,FXSelector,void*); 00066 00067 public: 00068 /// create a reader for the incoming stream 00069 FXLayout(FXComposite* p,FXStream* s=NULL,FXObject* tgt=NULL,FXSelector sel=0,FXint opts=LAYOUT_FILL_X|LAYOUT_FILL_Y); 00070 00071 /// create resources 00072 virtual void create(); 00073 00074 /// parse the stream (which generates callbacks which we handle) 00075 void parse(); 00076 00077 /// clears the existing window 00078 void clear(); 00079 00080 /// redisplay using a new stream 00081 void setStream(FXStream *s); 00082 00083 /// get the stream 00084 FXStream* getStream() { return stream; } 00085 00086 /// cleanup 00087 virtual ~FXLayout(); 00088 }; 00089 00090 } // namespace FXEX 00091 #endif // FXLAYOUT_H