# 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
    00021 enum HandleKeyPressResult
    00022 {
    00023   HKPR_EDITING,
    00024   HKPR_CURSOR,
    00025   HKPR_CONFIRM,
    00026   HKPR_CANCEL,
    00027   HKPR_NOT_HANDLED,
    00028 };
    00029
    00031 struct Textbuf {
    00032   CharSetFilter afilter;
    00033   char * const buf;
    00034   uint16 max_bytes;
    00035   uint16 max_chars;
    00036   uint16 bytes;
    00037   uint16 chars;
    00038   uint16 pixels;
    00039   bool caret;
    00040   uint16 caretpos;
    00041   uint16 caretxoffs;
    00042
    00043   explicit Textbuf(uint16 max_bytes, uint16 max_chars = UINT16_MAX);
    00044   ~Textbuf();
    00045
    00046   void Assign(StringID string);
    00047   void Assign(const char *text);
    00048   void CDECL Print(const char *format, ...) WARN_FORMAT(2, 3);
    00049
    00050   void DeleteAll();
    00051   bool InsertClipboard();
    00052
    00053   bool InsertChar(uint32 key);
    00054
    00055   bool DeleteChar(uint16 keycode);
    00056   bool MovePos(uint16 keycode);
    00057
    00058   HandleKeyPressResult HandleKeyPress(uint16 key, uint16 keycode);
    00059
    00060   bool HandleCaret();
    00061   void UpdateSize();
    00062
    00063 private:
    00064   bool CanDelChar(bool backspace);
    00065   WChar GetNextDelChar(bool backspace);
    00066   void DelChar(bool backspace);
    00067   bool CanMoveCaretLeft();
    00068   WChar MoveCaretLeft();
    00069   bool CanMoveCaretRight();
    00070   WChar MoveCaretRight();
    00071
    00072 };
    00073
    00074 #endif /* TEXTBUF_TYPE_H */