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/* $Id$ */

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/** @file textbuf_gui.h Stuff related to the text buffer GUI. */

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#ifndef TEXTBUF_GUI_H

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#define TEXTBUF_GUI_H

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#include "window_type.h"

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#include "string_type.h"

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struct Textbuf {

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	char *buf;                  ///< buffer in which text is saved

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	uint16 maxlength, maxwidth; ///< the maximum size of the buffer. Maxwidth specifies screensize in pixels, maxlength is in bytes

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	uint16 length, width;       ///< the current size of the string. Width specifies screensize in pixels, length is in bytes

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	bool caret;                 ///< is the caret ("_") visible or not

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	uint16 caretpos;            ///< the current position of the caret in the buffer, in bytes

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	uint16 caretxoffs;          ///< the current position of the caret in pixels

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};

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struct querystr_d {

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	StringID caption;

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	Textbuf text;

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	const char *orig;

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	CharSetFilter afilter;

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	bool handled;

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};

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assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(querystr_d));

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void DrawEditBox(Window *w, querystr_d *string, int wid);

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void HandleEditBox(Window *w, querystr_d *string, int wid);

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int HandleEditBoxKey(Window *w, querystr_d *string, int wid, WindowEvent *we);

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bool HandleCaret(Textbuf *tb);

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void DeleteTextBufferAll(Textbuf *tb);

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bool DeleteTextBufferChar(Textbuf *tb, int delmode);

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bool InsertTextBufferChar(Textbuf *tb, uint32 key);

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bool InsertTextBufferClipboard(Textbuf *tb);

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bool MoveTextBufferPos(Textbuf *tb, int navmode);

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void InitializeTextBuffer(Textbuf *tb, const char *buf, uint16 maxlength, uint16 maxwidth);

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void UpdateTextBufferSize(Textbuf *tb);

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void ShowQueryString(StringID str, StringID caption, uint maxlen, uint maxwidth, Window *parent, CharSetFilter afilter);

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void ShowQuery(StringID caption, StringID message, Window *w, void (*callback)(Window*, bool));

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#endif /* TEXTBUF_GUI_H */