textbuf_type.h

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #ifndef TEXTBUF_TYPE_H
00013 #define TEXTBUF_TYPE_H
00014 
00015 #include "string_type.h"
00016 
00018 struct Textbuf {
00019   char *buf;                
00020   uint16 max_bytes;         
00021   uint16 max_chars;         
00022   uint16 bytes;             
00023   uint16 chars;             
00024   uint16 pixels;            
00025   bool caret;               
00026   uint16 caretpos;          
00027   uint16 caretxoffs;        
00028 
00029   void Initialize(char *buf, uint16 max_bytes);
00030   void Initialize(char *buf, uint16 max_bytes, uint16 max_chars);
00031 
00032   void DeleteAll();
00033   bool DeleteChar(int delmode);
00034   bool InsertChar(uint32 key);
00035   bool InsertClipboard();
00036   bool MovePos(int navmode);
00037 
00038   bool HandleCaret();
00039   void UpdateSize();
00040 
00041 private:
00042   bool CanDelChar(bool backspace);
00043   WChar GetNextDelChar(bool backspace);
00044   void DelChar(bool backspace);
00045   bool CanMoveCaretLeft();
00046   WChar MoveCaretLeft();
00047   bool CanMoveCaretRight();
00048   WChar MoveCaretRight();
00049 
00050 };
00051 
00052 #endif /* TEXTBUF_TYPE_H */