text-object.h

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00001 // -*- C++ -*-
00002 
00003 /* 
00004  * GChemPaint libray
00005  * text-object.h 
00006  *
00007  * Copyright (C) 2002-2009 Jean Bréfort <jean.brefort@normalesup.org>
00008  *
00009  * This program is free software; you can redistribute it and/or 
00010  * modify it under the terms of the GNU General Public License as 
00011  * published by the Free Software Foundation; either version 2 of the
00012  * License, or (at your option) any later version.
00013  *
00014  * This program is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  * GNU General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU General Public License
00020  * along with this program; if not, write to the Free Software
00021  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
00022  * USA
00023  */
00024 
00025 #ifndef GCHEMPAINT_TEXT_OBJECT_H
00026 #define GCHEMPAINT_TEXT_OBJECT_H
00027 
00028 #include <gcu/object.h>
00029 #include <gcu/macros.h>
00030 #include <gccv/structs.h>
00031 #include <gccv/text-client.h>
00032 #include <gccv/text-tag.h>
00033 #include <pango/pango-layout.h>
00034 #include <string>
00035 
00036 namespace gccv {
00037         class Text;
00038 }
00039 
00041 namespace gcp {
00042 
00043 class TextEditor;
00044 
00050 class TextObject: public gcu::Object, public gccv::TextClient
00051 {
00052 public:
00058         TextObject (gcu::TypeId Type);
00066         TextObject (double x, double y, gcu::TypeId Type);
00070         virtual ~TextObject ();
00071 
00078         void GetSize (double& x, double& y) {x = m_length; y = m_height;}
00083         xmlNodePtr SaveSelected ();
00089         void LoadSelected (xmlNodePtr node);
00096         virtual bool OnChanged (bool save) = 0;
00103         bool SaveNode (xmlDocPtr xml, xmlNodePtr node) const;
00109         bool Load (xmlNodePtr node);
00117         void Move (double x, double y, double z = 0);
00124         bool IsLocked () {return m_bLoading;}
00131         void GetSelectionBounds (unsigned &start, unsigned &end) {start = m_StartSel; end = m_EndSel;}
00135         std::string GetBuffer () {return m_buf;}
00142         virtual std::string GetProperty (unsigned property) const;
00143 
00144         // virtual methods for the gccv:TextClient interface
00147         void SelectionChanged (unsigned start, unsigned end);
00150         void TextChanged (unsigned pos);
00151 
00152 protected:
00156         double m_x;
00160         double m_y;
00164         double m_length;
00168         double m_height;
00172         int m_ascent;
00176         int m_InsertOffset;
00180         std::string m_buf;
00184         bool m_bLoading;
00188         unsigned m_StartSel;
00192         unsigned m_EndSel;
00197         bool m_RealSave;
00198 
00199 //GCU_PROT_PROP (GtkAnchorType, Anchor)
00206 GCU_PROT_PROP (gccv::TextTagList, TagList)
00207 GCU_PROP (TextEditor*, Editor)
00208 GCU_PROT_PROP (gccv::Text*, TextItem)
00209 };
00210 
00211 }       // namespace gcp
00212 
00213 #endif  //GCHEMPAINT_TEXT_OBJECT_H

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