RedPanda-CPP/RedPandaIDE/qsynedit/TextPainter.h

92 lines
3.0 KiB
C++

/*
* Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef TEXTPAINTER_H
#define TEXTPAINTER_H
#include <QColor>
#include <QPainter>
#include <QString>
#include "Types.h"
#include "highlighter/base.h"
#include "../utils.h"
#include "MiscClasses.h"
class SynEdit;
class SynEditTextPainter
{
struct SynTokenAccu {
int Columns;
int ColumnsBefore;
QString s;
QColor FG;
QColor BG;
SynFontStyles Style;
};
public:
SynEditTextPainter(SynEdit * edit,QPainter* painter,int FirstRow, int LastRow,
int FirstCol, int LastCol);
void paintTextLines(const QRect& clip);
void paintGutter(const QRect& clip);
private:
QColor colEditorBG();
void ComputeSelectionInfo();
void setDrawingColors(bool Selected);
int ColumnToXValue(int Col);
void PaintToken(const QString& Token, int TokenLen, int ColumnsBefore,
int First, int Last, bool isSelection, const QFont& font,
const QFont& fontForNonAscii);
void PaintEditAreas(const SynEditingAreaList& areaList);
void PaintHighlightToken(bool bFillToEOL);
bool TokenIsSpaces(bool& bSpacesTest, const QString& Token, bool& bIsSpaces);
void AddHighlightToken(const QString& Token, int ColumnsBefore, int TokenColumns,
int cLine, PSynHighlighterAttribute p_Attri);
void PaintFoldAttributes();
void GetBraceColorAttr(int level, PSynHighlighterAttribute &attr);
void PaintLines();
void drawMark(PSynEditMark aMark,int& aGutterOff, int aMarkRow);
private:
SynEdit* edit;
QPainter* painter;
bool bDoRightEdge; // right edge
int nRightEdge;
// selection info
bool bAnySelection; // any selection visible?
DisplayCoord vSelStart; // start of selected area
DisplayCoord vSelEnd; // end of selected area
// info about normal and selected text and background colors
bool bSpecialLine, bLineSelected, bCurrentLine;
QColor colFG, colBG;
QColor colSelFG, colSelBG;
QColor colSpFG, colSpBG;
// info about selection of the current line
int nLineSelStart, nLineSelEnd;
bool bComplexLine;
// painting the background and the text
QRect rcLine, rcToken;
int vFirstLine, vLastLine;
QRect AClip;
int aFirstRow, aLastRow, FirstCol, LastCol;
SynTokenAccu TokenAccu;
};
#endif // TEXTPAINTER_H