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/* $Id$ */
/** @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"
struct Textbuf {
char *buf; ///< buffer in which text is saved
uint16 maxlength, maxwidth; ///< the maximum size of the buffer. Maxwidth specifies screensize in pixels, maxlength is in bytes
uint16 length, width; ///< the current size of the string. Width specifies screensize in pixels, length is in bytes
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, const char *buf, uint16 maxlength, uint16 maxwidth);
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
};
DECLARE_ENUM_AS_BIT_SET(QueryStringFlags)
typedef void QueryCallbackProc(Window*, bool);
void ShowQueryString(StringID str, StringID caption, uint maxlen, uint maxwidth, 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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