Add new selection style : free selection.

Use like normal selection + hold the ctrl key.
The code made in this commit are largely inspired by the the rubber band of QGraphicsView.


git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5716 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
blacksun
2019-01-23 17:08:04 +00:00
parent 3d17947074
commit ee44b4e8a2
3 changed files with 109 additions and 17 deletions

View File

@@ -53,10 +53,14 @@ class DiagramView : public QGraphicsView
QAction *m_paste_here = nullptr;
QAction *m_multi_paste = nullptr;
QPoint m_paste_here_pos;
QPointF m_rubber_band_origin;
QPointF m_drag_last_pos;
bool m_fresh_focus_in,
m_first_activation = true;
QList<QAction *> m_separators;
QPolygonF m_free_rubberband;
bool m_free_rubberbanding = false;
public:
QString title() const;
void editDiagramProperties();
@@ -74,18 +78,20 @@ class DiagramView : public QGraphicsView
void keyPressEvent(QKeyEvent *) override;
void keyReleaseEvent(QKeyEvent *) override;
bool event(QEvent *) override;
virtual bool switchToVisualisationModeIfNeeded(QInputEvent *e);
virtual bool switchToSelectionModeIfNeeded(QInputEvent *e);
virtual bool isCtrlShifting(QInputEvent *);
virtual bool selectedItemHasFocus();
private:
void paintEvent(QPaintEvent *event) override;
void mousePressEvent(QMouseEvent *) override;
void mouseMoveEvent(QMouseEvent *) override;
void mouseReleaseEvent(QMouseEvent *) override;
void dragEnterEvent(QDragEnterEvent *) override;
void dragMoveEvent(QDragMoveEvent *) override;
void dropEvent(QDropEvent *) override;
virtual bool switchToVisualisationModeIfNeeded(QInputEvent *e);
virtual bool switchToSelectionModeIfNeeded(QInputEvent *e);
virtual bool isCtrlShifting(QInputEvent *);
virtual bool selectedItemHasFocus();
private:
void handleElementDrop(QDropEvent *);
void handleTitleBlockDrop(QDropEvent *);
void handleTextDrop(QDropEvent *);
@@ -108,6 +114,9 @@ class DiagramView : public QGraphicsView
void editElementRequired(const ElementsLocation &);
/// Signal emmitted when diagram must be show
void showDiagram (Diagram *);
/// Signal emmtted when free rubberband changed.
/// When free rubberband selection ends this signal will be emitted with null value.
void freeRubberBandChanged(QPolygonF polygon);
public slots:
void selectNothing();