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 */