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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GLK_WINDOW_TEXT_BUFFER_H
#define GLK_WINDOW_TEXT_BUFFER_H
#include "glk/windows.h"
#include "glk/picture.h"
#include "glk/speech.h"
#include "common/array.h"
#include "common/ustr.h"
namespace Glk {
/**
* Text Buffer window
*/
class TextBufferWindow : public Window, Speech {
/**
* Structure for a row within the window
*/
struct TextBufferRow {
uint32 _chars[TBLINELEN];
Attributes _attrs[TBLINELEN];
int _len, _newLine;
bool _dirty, _repaint;
Picture *_lPic, *_rPic;
uint _lHyper, _rHyper;
int _lm, _rm;
/**
* Constructor
*/
TextBufferRow();
};
typedef Common::Array<TextBufferRow> TextBufferRows;
private:
void reflow();
void touchScroll();
bool putPicture(Picture *pic, uint align, uint linkval);
/**
* @remarks Only for input text
*/
void putText(const char *buf, int len, int pos, int oldlen);
/**
* @remarks Only for input text
*/
void putTextUni(const uint32 *buf, int len, int pos, int oldlen);
/**
* Return or enter, during line input. Ends line input.
*/
void acceptLine(uint32 keycode);
/**
* Return true if a following quotation mark should be an opening mark,
* false if it should be a closing mark. Opening quotation marks will
* appear following an open parenthesis, open square bracket, or
* whitespace.
*/
bool leftquote(uint32 c);
/**
* Mark a given text row as modified
*/
void touch(int line);
void scrollOneLine(bool forced);
void scrollResize();
int calcWidth(uint32 *chars, Attributes *attrs, int startchar, int numchars, int spw);
public:
int _width, _height;
int _spaced;
int _dashed;
TextBufferRows _lines;
int _scrollBack;
int _numChars; ///< number of chars in last line: lines[0]
uint32 *_chars; ///< alias to lines[0].chars
Attributes *_attrs; ///< alias to lines[0].attrs
///< adjust margins temporarily for images
int _ladjw;
int _ladjn;
int _radjw;
int _radjn;
// Command history.
Common::Array<Common::U32String> _history;
int _historyPos;
int _historyFirst, _historyPresent;
// for paging
int _lastSeen;
int _scrollPos;
int _scrollMax;
// for line input
void *_inBuf; ///< unsigned char* for latin1, uint* for unicode
int _inMax;
long _inFence;
long _inCurs;
Attributes _origAttr;
gidispatch_rock_t _inArrayRock;
uint _echoLineInput;
uint *_lineTerminators;
// style hints and settings
WindowStyle _styles[style_NUMSTYLES];
// for copy selection
uint32 *_copyBuf;
int _copyPos;
public:
/**
* Constructor
*/
TextBufferWindow(Windows *windows, uint rock);
/**
* Destructor
*/
virtual ~TextBufferWindow();
int acceptScroll(uint arg);
uint drawPicture(uint image, uint align, uint scaled, uint width, uint height);
/**
* Rearranges the window
*/
virtual void rearrange(const Rect &box) override;
/**
* Get window split size within parent pair window
*/
virtual uint getSplit(uint size, bool vertical) const override;
/**
* Write a unicode character
*/
virtual void putCharUni(uint32 ch) override;
/**
* Unput a unicode character
*/
virtual bool unputCharUni(uint32 ch) override;
/**
* Clear the window
*/
virtual void clear() override;
/**
* Click the window
*/
virtual void click(const Point &newPos) override;
/**
* Prepare for inputing a line
*/
virtual void requestLineEvent(char *buf, uint maxlen, uint initlen) override;
/**
* Prepare for inputing a line
*/
virtual void requestLineEventUni(uint32 *buf, uint maxlen, uint initlen) override;
/**
* Cancel an input line event
*/
virtual void cancelLineEvent(Event *ev) override;
/**
* Cancel a hyperlink event
*/
virtual void cancelHyperlinkEvent() override {
_hyperRequest = false;
}
/**
* Redraw the window
*/
virtual void redraw() override;
virtual void acceptReadLine(uint32 arg) override;
virtual void acceptReadChar(uint arg) override;
virtual void getSize(uint *width, uint *height) const override;
virtual void requestCharEvent() override {
_charRequest = true;
}
virtual void requestCharEventUni() override {
_charRequestUni = true;
}
virtual void setEchoLineEvent(uint val) override {
_echoLineInput = val != 0;
}
virtual void requestHyperlinkEvent() override {
_hyperRequest = true;
}
virtual void cancelCharEvent() override {
_charRequest = _charRequestUni = false;
}
virtual void flowBreak() override;
/**
* Returns a pointer to the styles for the window
*/
virtual const WindowStyle *getStyles() const override {
return _styles;
}
};
} // End of namespace Glk
#endif
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