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
|
#include "base/SRC_FIRST.hpp"
#include "qt/slider_ctrl.hpp"
#include "qt/proxystyle.hpp"
#include "base/math.hpp"
namespace qt
{
///////////////////////////////////////////////////////////////////////////////////////////////
// QClickSmoothSlider implementation
///////////////////////////////////////////////////////////////////////////////////////////////
QClickSmoothSlider::QClickSmoothSlider(Qt::Orientation orient, QWidget * pParent, int factor)
: base_t(orient, pParent), m_factor(factor)
{
/// This style cause slider to set value exactly to the cursor position (not "page scroll")
/// @todo Do investigate this stuff with Qt5.
class MyProxyStyle : public ProxyStyle
{
public:
MyProxyStyle(QStyle * p) : ProxyStyle(p) {}
virtual int styleHint(StyleHint hint, const QStyleOption* option, const QWidget* widget, QStyleHintReturn* returnData) const
{
if (hint == SH_Slider_AbsoluteSetButtons)
return Qt::LeftButton;
else
return ProxyStyle::styleHint(hint, option, widget, returnData);
}
};
setStyle(new MyProxyStyle(style()));
}
QClickSmoothSlider::~QClickSmoothSlider()
{
QStyle * p = style();
delete p;
}
void QClickSmoothSlider::SetRange(int low, int up)
{
setRange(low * m_factor, up * m_factor);
}
///////////////////////////////////////////////////////////////////////////////////////////////
// QScaleSlider implementation
///////////////////////////////////////////////////////////////////////////////////////////////
QScaleSlider::QScaleSlider(Qt::Orientation orient, QWidget * pParent, int factor)
: base_t(orient, pParent, factor)
{
}
double QScaleSlider::GetScaleFactor() const
{
double const oldV = value();
double const newV = sliderPosition();
if (oldV != newV)
{
double const f = pow(2, fabs(oldV - newV) / m_factor);
return (newV > oldV ? f : 1.0 / f);
}
else return 1.0;
}
void QScaleSlider::SetPosWithBlockedSignals(double pos)
{
bool const b = signalsBlocked();
blockSignals(true);
setSliderPosition(my::rounds(pos * m_factor));
blockSignals(b);
}
}
|
