DiffableSourceTextEdit.h++

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#ifndef __libquark_diff_DiffableSourceTextEdit_hxx
#define __libquark_diff_DiffableSourceTextEdit_hxx

#include <QPainter>
#include <QPaintEvent>
#include <QVector>

#include <quark/DiffChunk.h++>
#include <quark/DiffResult.h++>
#include <quark/DiffTypes.h++>
#include <quark/SourceTextEdit.h++>

namespace quark {
namespace diff {

class DiffModel;
class DiffColorModel;

class DiffableSourceTextEdit : public quark::gui::SourceTextEdit
{
  Q_OBJECT;

  public:

  DiffableSourceTextEdit(QWidget* parent = NULL);
  virtual ~DiffableSourceTextEdit();

  void setDiffModel(DiffModel* diffModel, DiffRole diffRole,
                    DiffDirection diffDir);
  void setDiffDirection(DiffDirection diffDir);

  void setDiffColorModel(DiffColorModel* diffColorModel);

  int pixelTopOfLine(int line) const;
  int pixelBottomOfLine(int line) const;

  int lineAtCenter() const;
  void setLineAtCenter(int line);

  DiffRole diffRole() const
  { return(_diffRole); }

  DiffDirection diffDirection() const
  { return(_diffDir); }

  void highlightDiffRegions();

  protected:

  virtual void paintEvent(QPaintEvent* event);

  private:

  void paint(QPainter& painter, QPaintEvent* event);

  DiffModel* _diffModel;
  DiffColorModel* _diffColorModel;
  DiffRole _diffRole;
  DiffDirection _diffDir;
};

} // namespace diff
} // namespace quark

#endif // __libquark_diff_DiffableSourceTextEdit_hxx