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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
#include "starwidget.h"
#include <QSvgRenderer>
#include <QPainter>
#include <QPaintEvent>
#include <QDebug>
#include <QMouseEvent>
#include <unistd.h>
QPixmap* StarWidget::activeStar = 0;
QPixmap* StarWidget::inactiveStar = 0;
QPixmap StarWidget::starActive()
{
return (*activeStar);
}
QPixmap StarWidget::starInactive()
{
return (*inactiveStar);
}
int StarWidget::currentStars() const
{
return current;
}
void StarWidget::mouseReleaseEvent(QMouseEvent* event)
{
if (readOnly) {
return;
}
int starClicked = event->pos().x() / IMG_SIZE + 1;
if (starClicked > TOTALSTARS)
starClicked = TOTALSTARS;
if (current == starClicked)
current -= 1;
else
current = starClicked;
Q_EMIT valueChanged(current);
update();
}
void StarWidget::paintEvent(QPaintEvent* event)
{
QPainter p(this);
for(int i = 0; i < current; i++)
p.drawPixmap(i * IMG_SIZE + SPACING, 0, starActive());
for(int i = current; i < TOTALSTARS; i++)
p.drawPixmap(i * IMG_SIZE + SPACING, 0, starInactive());
}
void StarWidget::setCurrentStars(int value)
{
current = value;
update();
Q_EMIT valueChanged(current);
}
StarWidget::StarWidget(QWidget* parent, Qt::WindowFlags f):
QWidget(parent, f),
current(0),
readOnly(false)
{
if (!activeStar) {
activeStar = new QPixmap();
QSvgRenderer render(QString(":star"));
QPixmap renderedStar(IMG_SIZE, IMG_SIZE);
renderedStar.fill(Qt::transparent);
QPainter painter(&renderedStar);
render.render(&painter, QRectF(0, 0, IMG_SIZE, IMG_SIZE));
(*activeStar) = renderedStar;
}
if (!inactiveStar) {
inactiveStar = new QPixmap();
(*inactiveStar) = grayImage(activeStar);
}
}
QPixmap StarWidget::grayImage(QPixmap* coloredImg)
{
QImage img = coloredImg->toImage();
for (int i = 0; i < img.width(); ++i) {
for (int j = 0; j < img.height(); ++j) {
QRgb rgb = img.pixel(i, j);
if (!rgb)
continue;
QColor c(rgb);
int gray = (c.red() + c.green() + c.blue()) / 3;
img.setPixel(i, j, qRgb(gray, gray, gray));
}
}
return QPixmap::fromImage(img);
}
QSize StarWidget::sizeHint() const
{
return QSize(IMG_SIZE * TOTALSTARS + SPACING * (TOTALSTARS-1), IMG_SIZE);
}
void StarWidget::setReadOnly(bool r)
{
readOnly = r;
}
|
