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textview.h
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textview.h
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#ifndef PLAINTEXTEDIT_H
#define PLAINTEXTEDIT_H
#include <QWidget>
#include <QPlainTextEdit>
namespace Farman
{
/*
* Reference
* Qt Code Editor Example
* http://doc.qt.io/qt-5/qtwidgets-widgets-codeeditor-example.html
*/
class TextView : public QPlainTextEdit
{
Q_OBJECT
public:
explicit TextView(QWidget *parent = Q_NULLPTR);
~TextView() Q_DECL_OVERRIDE;
bool getVisibleLineNumberArea();
void setVisibleLineNumberArea(bool visible);
const QPalette& getLineNumberAreaPalette() const;
void setLineNumberAreaPalette(const QPalette& palette);
protected:
void resizeEvent(QResizeEvent *e) Q_DECL_OVERRIDE;
private Q_SLOTS:
void onBlockCountChanged(int newBlockCount);
void onUpdateRequest(const QRect &rect, int dy);
private:
void updateLineNumberAreaWidth();
int getLineNumberAreaWidth();
int getDigitsLineNumber();
class LineNumberArea : public QWidget
{
public:
explicit LineNumberArea(TextView* parent);
~LineNumberArea();
int getAreaWidth() const;
private:
QSize sizeHint() const Q_DECL_OVERRIDE;
void paintEvent(QPaintEvent* e) Q_DECL_OVERRIDE;
};
LineNumberArea* m_lineNumberArea;
};
} // namespace Farman
#endif // PLAINTEXTEDIT_H