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/*
* Yudit Unicode Editor Source File
*
* GNU Copyright (C) 1997-2023 Gaspar Sinai <gaspar@yudit.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* dated June 1991. See file COPYYING for details.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef STextView_h
#define STextView_h
#include "stoolkit/STextIndex.h"
#include "stoolkit/SCursorIndex.h"
#include "stoolkit/STextData.h"
#include "stoolkit/STypes.h"
#include "swidget/SComponent.h"
#include "swindow/SFont.h"
#include "swindow/SWindow.h"
#include "swindow/SSyntaxColors.h"
#include "stoolkit/syntax/SSyntax.h"
typedef SBinHashtable<SS_UINT> SH_UINT;
/**
* Provide a widget view to STextData
*/
class STextView : public SComponent, STextDataListener
{
public:
STextView (bool scalable=true);
STextView (const SString& utf8, bool scalable=true);
virtual ~STextView ();
/* Every component has this. */
virtual void redraw (SCanvas *canvas, int x, int y,
unsigned int width, unsigned int height);
void setFont (const SString& font, double fontSize=0.0);
void setFontSize (double fontSize);
void setForeground (const SColor& lrfg, const SColor& rlfg);
virtual void setBackground (const SColor& bg);
const SColor& getBackground ();
const SColor& getForeground (bool lr);
void setAlignment (bool align);
void setMultiline (bool multiline);
bool isMultiline () const;
void setViewPort (const SLocation& viewPort);
const SLocation& getViewPort();
virtual void resize (const SDimension& d);
SCursorIndex getCursorIndex (const SLocation& l);
SLocation getCursorLocation (const SCursorIndex& cursorIndex);
SCursorIndex leftOf (const SCursorIndex& ci);
SCursorIndex rightOf (const SCursorIndex& ci);
void setLineEndMark (bool lineend);
bool getLineEndMark () const;
unsigned int getDocumentHeight () const;
void setSyntax (const SString& hlMode);
const SString& getSyntax () const;
void setSyntaxColors (const SSyntaxColors& attr);
const SSyntaxColors& getSyntaxColors () const;
void setWordWrap (bool lbm);
bool getWordWrap () const;
STextData textData;
unsigned int lineHeight;
unsigned int lineAscent;
void setUnderlineColor (const SColor& c);
void setClippingArea (int x, int y,
unsigned int width, unsigned int height);
void addSyntaxListener (SSyntaxListener* _listener)
{ syntax.addSyntaxListener (_listener); }
void setEditable (bool editable);
void setText (const SString& text);
SString getSyntaxName () const
{
return syntax.getParser ();
}
SString getHighlightName () const
{
return highlightMode;
}
void setPrinterPageSize (unsigned int _ps)
{ printerPageSize = _ps; }
void setHideText(bool is);
bool isHideText();
private:
SSyntaxColors syntaxColors;
SString highlightMode;
SSyntax syntax;
bool isWordWrapOn;
bool isEditable;
bool isHidingText;
unsigned int printerPageSize;
bool scalable;
SCursorIndex moveCursor (const SCursorIndex& ci, bool up);
unsigned int getLineIndex (int locy);
void internalRedraw (SCanvas *canvas, int x, int y,
unsigned int width, unsigned int height);
void setVisible (unsigned int line);
SLocation getTextLocation (const STextIndex& textIndex, bool before=true);
void setPen();
/* STextDataListener */
void textChanged (void* src, const STextDataEvent& event);
void textChangedInternal (void* src, const STextDataEvent& event);
unsigned int drawParagraph (SCanvas* c, bool islr, unsigned int line,
const SLocation& l, const SLocation& lb,
const SLocation& le, bool iswindow=false);
void drawGlyph (SCanvas* c, SLocation& l, unsigned int ext, STextIndex index);
void syntaxHighlight(STextIndex index, SPen* pen, bool* isError);
bool checktext(STextIndex index, const char* checkstring);
void setReordered();
void wrapAndPosition ();
void wrapAndPosition (unsigned int from, unsigned int until, int addcount);
unsigned int wrapAndPosition (unsigned int line, SH_UINT* cache);
SFont font;
SPen lrpen;
SPen rlpen;
SLocation viewPort;
SColor underlineColor;
/* per line based arrays */
SV_UINT lineSpan; /* how many lines? */
SVector<SV_UINT> posBefore; /* glyph locations */
SVector<SV_UINT> posAfter; /* glyph locations */
SVector<SV_UINT> breaks; /* linebreaks */
double fontSize;
int clipx; int clipy;
int clipw; int cliph;
bool alignment;
bool multiline;
bool lineend;
};
#endif /* STextView_h */
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