QtiPlot  0.9.8.2
CanvasPicker.h
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1 /***************************************************************************
2  File : CanvasPicker.h
3  Project : QtiPlot
4  --------------------------------------------------------------------
5  Copyright : (C) 2006 by Ion Vasilief
6  Email (use @ for *) : ion_vasilief*yahoo.fr
7  Description : Canvas picker
8 
9  ***************************************************************************/
10 
11 /***************************************************************************
12  * *
13  * This program is free software; you can redistribute it and/or modify *
14  * it under the terms of the GNU General Public License as published by *
15  * the Free Software Foundation; either version 2 of the License, or *
16  * (at your option) any later version. *
17  * *
18  * This program is distributed in the hope that it will be useful, *
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
21  * GNU General Public License for more details. *
22  * *
23  * You should have received a copy of the GNU General Public License *
24  * along with this program; if not, write to the Free Software *
25  * Foundation, Inc., 51 Franklin Street, Fifth Floor, *
26  * Boston, MA 02110-1301 USA *
27  * *
28  ***************************************************************************/
29 #include <QObject>
30 #include <QPoint>
31 #include <QMouseEvent>
32 
33 class Graph;
34 class ArrowMarker;
35 
40 class CanvasPicker: public QObject
41 {
42  Q_OBJECT
43 public:
45  virtual bool eventFilter(QObject *, QEvent *);
46  void selectPoints(int n);
47  void selectPeak(const QPoint& p);
48 
50 
52  void disableEditing();
53 
54 private:
55  void drawLineMarker(const QPoint&, bool endArrow);
56 
58 
61  bool selectMarker(const QMouseEvent *e);
62 
66  Graph *plot(){return (Graph *)parent();};
67 
69 
70 signals:
71  void showPlotDialog(int);
72  void viewLineDialog();
73  void showMarkerPopupMenu();
74  void modified();
75 
76 private:
85 };
ArrowMarker * d_editing_marker
The marker that is currently being edited, or NULL. Editing does explicitly not inlude moving and res...
Definition: CanvasPicker.h:84
void disableEditing()
Disable editing of d_editing_marker on a TAB-key event.
Definition: CanvasPicker.cpp:219
QPoint endLinePoint
Definition: CanvasPicker.h:66
A 2D-plotting widget.
Definition: Graph.h:123
void selectPeak(const QPoint &p)
void showMarkerPopupMenu()
Handles parts of the user interaction for a Plot by registering itself as an event filter for its Qwt...
Definition: CanvasPicker.h:40
Draws lines and arrows on a QwtPlot.
Definition: ArrowMarker.h:43
void modified()
Graph * plot()
Return my parent as a Graph.
Definition: CanvasPicker.h:66
CanvasPicker(Graph *plot)
Definition: CanvasPicker.cpp:41
void selectPoints(int n)
bool selectMarker(const QMouseEvent *e)
Selects and highlights the marker at the given position.
Definition: CanvasPicker.cpp:251
void drawLineMarker(const QPoint &, bool endArrow)
Definition: CanvasPicker.cpp:227
void viewLineDialog()
QPoint startLinePoint
Definition: CanvasPicker.h:66
virtual bool eventFilter(QObject *, QEvent *)
Definition: CanvasPicker.cpp:51
void showPlotDialog(int)
bool pointSelected
Definition: CanvasPicker.h:77