# 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 #include "strings_type.h"
    00017
    00019 struct Textbuf {
    00020   char * const buf;
    00021   uint16 max_bytes;
    00022   uint16 max_chars;
    00023   uint16 bytes;
    00024   uint16 chars;
    00025   uint16 pixels;
    00026   bool caret;
    00027   uint16 caretpos;
    00028   uint16 caretxoffs;
    00029
    00030   explicit Textbuf(uint16 max_bytes, uint16 max_chars = UINT16_MAX);
    00031   ~Textbuf();
    00032
    00033   void Assign(StringID string);
    00034   void Assign(const char *text);
    00035   void CDECL Print(const char *format, ...) WARN_FORMAT(2, 3);
    00036
    00037   void DeleteAll();
    00038   bool DeleteChar(int delmode);
    00039   bool InsertChar(uint32 key);
    00040   bool InsertClipboard();
    00041   bool MovePos(int navmode);
    00042
    00043   bool HandleCaret();
    00044   void UpdateSize();
    00045
    00046 private:
    00047   bool CanDelChar(bool backspace);
    00048   WChar GetNextDelChar(bool backspace);
    00049   void DelChar(bool backspace);
    00050   bool CanMoveCaretLeft();
    00051   WChar MoveCaretLeft();
    00052   bool CanMoveCaretRight();
    00053   WChar MoveCaretRight();
    00054
    00055 };
    00056
    00057 #endif /* TEXTBUF_TYPE_H */