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#ifndef CODEEDITOR_H | |
#define CODEEDITOR_H | |
#include <QPlainTextEdit> | |
#include <QObject> | |
class QPaintEvent; | |
class QResizeEvent; | |
class QSize; | |
class QWidget; | |
class LineNumberArea; | |
class CodeEditor : public QPlainTextEdit | |
{ | |
Q_OBJECT | |
public: | |
CodeEditor(QWidget *parent = 0); | |
void lineNumberAreaPaintEvent(QPaintEvent *event); | |
int lineNumberAreaWidth(); | |
protected: | |
void resizeEvent(QResizeEvent *event); | |
private slots: | |
void updateLineNumberAreaWidth(int newBlockCount); | |
void highlightCurrentLine(); | |
void updateLineNumberArea(const QRect &, int); | |
private: | |
QWidget *lineNumberArea; | |
}; | |
class LineNumberArea : public QWidget | |
{ | |
public: | |
LineNumberArea(CodeEditor *editor) : QWidget(editor) { | |
codeEditor = editor; | |
} | |
QSize sizeHint() const { | |
return QSize(codeEditor->lineNumberAreaWidth(), 0); | |
} | |
protected: | |
void paintEvent(QPaintEvent *event) { | |
codeEditor->lineNumberAreaPaintEvent(event); | |
} | |
private: | |
CodeEditor *codeEditor; | |
}; | |
#endif |