1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
#ifndef PLOT_WIDGET_H
#define PLOT_WIDGET_H
#include <gtkmm/drawingarea.h>
#include "plotbase.h"
class PlotWidget : public Gtk::DrawingArea {
public:
PlotWidget();
~PlotWidget();
sigc::signal<void()>& OnMouseLeaveEvent() { return _onMouseLeft; }
sigc::signal<void(double, double)>& OnButtonReleasedEvent() {
return _onButtonReleased;
}
sigc::signal<void(double, double, int)>& OnScrollEvent() { return _onScroll; }
sigc::signal<void()>& BeforeDrawSignal() { return _beforeDrawSignal; }
void Update();
PlotBase& Plot() { return *_plot; }
const PlotBase& Plot() const { return *_plot; }
void SetPlot(PlotBase& plot) {
_linkedRedrawConnection.disconnect();
_plot = &plot;
_linkedRedrawConnection = _plot->SignalLinkedRedraw().connect(
sigc::mem_fun(*this, &PlotWidget::Update));
queue_draw();
}
void Clear() {
_linkedRedrawConnection.disconnect();
_plot = nullptr;
queue_draw();
}
/**
* A signal that gets called when the mouse moves over the plot.
* The function handler should have two double parameters, which will
* receive the x and y positions of the mouse, in units of the plot.
*/
sigc::signal<void(double, double)>& OnMouseMovedEvent() {
return _onMouseMoved;
}
bool IsMouseInImage() const { return _mouseIsIn; }
size_t MouseX() { return _mouseX; }
size_t MouseY() { return _mouseY; }
void SavePdf(const std::string& filename) {
_plot->SavePdf(filename, get_width(), get_height());
}
void SaveSvg(const std::string& filename) {
_plot->SaveSvg(filename, get_width(), get_height());
}
void SavePng(const std::string& filename) {
_plot->SavePng(filename, get_width(), get_height());
}
private:
bool onDraw(const Cairo::RefPtr<Cairo::Context>& cr);
bool onMotion(GdkEventMotion* event);
bool onLeave(GdkEventCrossing* event);
bool onButtonPress(GdkEventButton* event);
bool onButtonRelease(GdkEventButton* event);
bool onScroll(GdkEventScroll* event);
PlotBase* _plot;
bool _mouseIsIn;
double _mouseX, _mouseY;
bool _isButtonPressed, _isZooming, _isPanning;
double _bpressStartX, _bpressStartY;
sigc::signal<void(double, double)> _onMouseMoved;
sigc::signal<void()> _onMouseLeft;
sigc::signal<void(double, double)> _onButtonReleased;
sigc::signal<void(double, double, int)> _onScroll;
sigc::signal<void()> _beforeDrawSignal;
sigc::connection _linkedRedrawConnection;
};
#endif
|
