-
Notifications
You must be signed in to change notification settings - Fork 0
/
framebar.cpp
161 lines (132 loc) · 4.92 KB
/
framebar.cpp
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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
#include "framebar.h"
#include <QPainter>
#include <QMouseEvent>
#include <QTime>
#include "utils.h"
#define UPPER_HEIGHT 12
#define LOWER_HEIGHT 48
enum
{
NO_DRAG,
DRAG_LEFT,
DRAG_RIGHT,
DRAG_FRAME
};
FrameBar::FrameBar(QWidget *parent, TimeContext* timeContext) :
QWidget(parent), _timeContext(timeContext)
{
setMouseTracking(true);
setMinimumHeight(UPPER_HEIGHT + LOWER_HEIGHT);
_draggingState = NO_DRAG;
connect(_timeContext, SIGNAL(frameChanged(int)), this, SLOT(updateFrame(int)));
}
QString FrameBar::getLeftRegionTime()
{
int totalSeconds = _timeContext->duration();
int secondsOnLeft = totalSeconds * _boundsLeft;
int minutes = secondsOnLeft / 60;
int seconds = secondsOnLeft - (minutes * 60);
return QString("%1:%2").arg(minutes, 2, 10, QChar('0'))
.arg(seconds, 2, 10, QChar('0'));
}
QString FrameBar::getRightRegionTime()
{
int totalSeconds = _timeContext->duration();
int secondsOnRight = totalSeconds * _boundsRight;
int minutes = secondsOnRight / 60;
int seconds = secondsOnRight - (minutes * 60);
return QString("%1:%2").arg(minutes, 2, 10, QChar('0'))
.arg(seconds, 2, 10, QChar('0'));
}
void FrameBar::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
// draw region widget
//
painter.fillRect(0, 0, width(), UPPER_HEIGHT, Qt::gray);
{
QColor handleColor(0, 150, 0);
QColor hoverHandleColor(0, 255, 0);
QColor fillColor(0, 100, 0);
painter.fillRect(leftRegionHandle().x(), 1,
rightRegionHandle().x() - leftRegionHandle().x(),
UPPER_HEIGHT - 2,
fillColor);
QColor leftColor = (_leftHighlighted && _draggingState == NO_DRAG || _draggingState == DRAG_LEFT) ?
hoverHandleColor : handleColor;
QColor rightColor = (_rightHighlighted && _draggingState == NO_DRAG || _draggingState == DRAG_RIGHT) ?
hoverHandleColor : handleColor;
painter.fillRect(leftRegionHandle(), leftColor);
painter.fillRect(rightRegionHandle(), rightColor);
}
// draw the timeline widget
//
{
QColor timelineColor(0, 160, 0);
painter.fillRect(0, UPPER_HEIGHT, width(), LOWER_HEIGHT, timelineColor);
painter.drawText(10, UPPER_HEIGHT, getLeftRegionTime());
float seconds = _timeContext->currentTime();
float secondsLeft = _timeContext->duration() * _boundsLeft;
float secondsRight = _timeContext->duration() * _boundsRight;
const int markerX = ((seconds - secondsLeft) / (secondsRight - secondsLeft)) * width();
painter.drawLine(markerX, UPPER_HEIGHT, markerX, height());
QString rightRegionTime = getRightRegionTime();
int strWidth = painter.fontMetrics().width(rightRegionTime);
painter.drawText(width() - strWidth, UPPER_HEIGHT, rightRegionTime);
}
}
void FrameBar::setLayer(QSharedPointer<Layer> layer)
{
_layer = layer;
}
void FrameBar::mouseMoveEvent(QMouseEvent *event)
{
_leftHighlighted = leftRegionHandle().contains(event->pos());
_rightHighlighted = rightRegionHandle().contains(event->pos());
if (_draggingState == DRAG_LEFT) {
int newLeftX = event->pos().x() - _handleOffset;
_boundsLeft = std::max(0.0f, std::min(_boundsRight, newLeftX / (float)width()));
} else if (_draggingState == DRAG_RIGHT) {
int newRightX = event->pos().x() - _handleOffset;
_boundsRight = std::min(1.0f, std::max(_boundsLeft, newRightX / (float)width()));
}
update();
}
void FrameBar::mousePressEvent(QMouseEvent *event)
{
if (_draggingState == NO_DRAG) {
if (leftRegionHandle().contains(event->pos())) {
_draggingState = DRAG_LEFT;
_handleOffset = event->pos().x() - leftRegionHandle().x();
} else if (rightRegionHandle().contains(event->pos())) {
_draggingState = DRAG_RIGHT;
_handleOffset = event->pos().x() - rightRegionHandle().x();
} else if (event->pos().y() > UPPER_HEIGHT) {
float secondsLeft = _timeContext->duration() * _boundsLeft;
float secondsRight = _timeContext->duration() * _boundsRight;
float pickSeconds = secondsLeft + (secondsRight - secondsLeft) * (event->x() / (float)width());
_timeContext->setCurrentTime(pickSeconds);
_draggingState = DRAG_FRAME;
}
}
update();
}
void FrameBar::mouseReleaseEvent(QMouseEvent *event)
{
_draggingState = NO_DRAG;
update();
}
void FrameBar::updateFrame(int f)
{
update();
}
QRect FrameBar::leftRegionHandle()
{
int left = (int)(width() * _boundsLeft);
return QRect(std::max(0, left-UPPER_HEIGHT), 0, UPPER_HEIGHT, UPPER_HEIGHT);
}
QRect FrameBar::rightRegionHandle()
{
int right = (int)(width() * _boundsRight);
return QRect(std::min(right, width() - UPPER_HEIGHT), 0, UPPER_HEIGHT, UPPER_HEIGHT);
}