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Location: cpp/openttd-patchpack/source/src/textbuf_gui.h - annotation
r17167:68f47a8db1b5
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text/x-c
(svn r21916) -Fix [FS#4442]: the minimum speed needed for (realistic) acceleration to work properly can sometimes be more than the (temporary) maximum speed causing Clamp to "fail". Make sure that the minimum speed always overrules the maximum speed
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/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file textbuf_gui.h Stuff related to the text buffer GUI. */
#ifndef TEXTBUF_GUI_H
#define TEXTBUF_GUI_H
#include "window_type.h"
#include "string_type.h"
#include "strings_type.h"
#include "core/enum_type.hpp"
/** Helper/buffer for input fields. */
struct Textbuf {
char *buf; ///< buffer in which text is saved
uint16 max_bytes; ///< the maximum size of the buffer in bytes (including terminating '\0')
uint16 max_chars; ///< the maximum size of the buffer in characters (including terminating '\0')
uint16 max_pixels; ///< the maximum size of the buffer in pixels
uint16 bytes; ///< the current size of the string in bytes (including terminating '\0')
uint16 chars; ///< the current size of the string in characters (including terminating '\0')
uint16 pixels; ///< the current size of the string in pixels
bool caret; ///< is the caret ("_") visible or not
uint16 caretpos; ///< the current position of the caret in the buffer, in bytes
uint16 caretxoffs; ///< the current position of the caret in pixels
};
bool HandleCaret(Textbuf *tb);
void DeleteTextBufferAll(Textbuf *tb);
bool DeleteTextBufferChar(Textbuf *tb, int delmode);
bool InsertTextBufferChar(Textbuf *tb, uint32 key);
bool InsertTextBufferClipboard(Textbuf *tb);
bool MoveTextBufferPos(Textbuf *tb, int navmode);
void InitializeTextBuffer(Textbuf *tb, char *buf, uint16 max_bytes, uint16 max_pixels);
void InitializeTextBuffer(Textbuf *tb, char *buf, uint16 max_bytes, uint16 max_chars, uint16 max_pixels);
void UpdateTextBufferSize(Textbuf *tb);
/** Flags used in ShowQueryString() call */
enum QueryStringFlags {
QSF_NONE = 0,
QSF_ACCEPT_UNCHANGED = 0x01, ///< return success even when the text didn't change
QSF_ENABLE_DEFAULT = 0x02, ///< enable the 'Default' button ("\0" is returned)
QSF_LEN_IN_CHARS = 0x04, ///< the length of the string is counted in characters
};
DECLARE_ENUM_AS_BIT_SET(QueryStringFlags)
typedef void QueryCallbackProc(Window*, bool);
void ShowQueryString(StringID str, StringID caption, uint max_len, uint max_pixels, Window *parent, CharSetFilter afilter, QueryStringFlags flags);
void ShowQuery(StringID caption, StringID message, Window *w, QueryCallbackProc *callback);
/** The number of 'characters' on the on-screen keyboard. */
static const uint OSK_KEYBOARD_ENTRIES = 50;
/**
* The number of characters has to be OSK_KEYBOARD_ENTRIES. However, these
* have to be UTF-8 encoded, which means up to 4 bytes per character.
* Furthermore the string needs to be '\0'-terminated.
*/
extern char _keyboard_opt[2][OSK_KEYBOARD_ENTRIES * 4 + 1];
#endif /* TEXTBUF_GUI_H */
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