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TimeElapsedTapeV.py
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TimeElapsedTapeV.py
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from PySide2.QtWidgets import (QApplication, QGraphicsView, QGraphicsScene, QGraphicsItem, QGraphicsRectItem,
QWidget, QGraphicsSimpleTextItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsItem,
QMenu, QAction)
from PySide2.QtGui import (QPen, QBrush, QPolygonF, QPainter, QFont, QFontMetrics)
from PySide2.QtCore import (Qt, QRectF, QPoint, QPointF, QTimer )
import sys
class TimeElapsedTape(QGraphicsItem):
def __init__(self, parent=None):
super(TimeElapsedTape, self).__init__(parent)
# time in seconds
self.currTime = 0
self.width = 400
self.height = 50
self.lineSpacing = 5
self.direction = 2 # Horizontal
self.backColor = Qt.black
self.linePen = QPen(Qt.white, 1)
self.textPen = QPen(Qt.white, 1)
self.backColor = Qt.lightGray
self.linePen = QPen(Qt.black, 1)
self.textPen = QPen(Qt.black, 1)
self.backColor = Qt.blue
self.linePen = QPen(Qt.white, 1)
self.textPen = QPen(Qt.white, 1)
if self.direction == 2:
self.width, self.height = 50, 400
def boundingRect(self):
if self.direction == 1:
return QRectF(0, 0, self.width, self.height+20)
else:
return QRectF(0, 0, self.width+20, self.height)
def setCurTime(self, sec):
self.currTime = sec
self.update()
def paint(self, painter, option, widget):
rect = self.boundingRect()
brush = QBrush()
brush.setStyle(Qt.SolidPattern)
brush.setColor(self.backColor)
painter.setBrush(brush)
painter.drawRect(QRectF(0, 0, self.width, self.height))
painter.setPen(QPen(Qt.red, 2))
# painter.drawLine(QPointF(self.width/2, 0), QPointF(self.width/2, self.height))
painter.drawLine(QPointF(0, self.height/2), QPointF(self.width, self.height/2))
font = painter.font()
font.setPixelSize(12)
font.setWeight(QFont.Bold)
fontMetrics = QFontMetrics(font)
painter.setFont(font)
textRect = fontMetrics.boundingRect(str(self.currTime))
painter.drawText(QPointF(50+5, self.height/2), str(self.currTime))
painter.setPen(self.linePen)
# one line after 5 pixels
startValue = self.currTime
# origin = (self.width / 2) - (startValue * self.lineSpacing)
# min = int(startValue - (self.width * .5) / self.lineSpacing)
# max = int(startValue + (self.width * .5) / self.lineSpacing)
origin = (self.height / 2) - (startValue * self.lineSpacing)
min = int(startValue - (self.height * .5) / self.lineSpacing)
max = int(startValue + (self.height * .5) / self.lineSpacing)
for i in range(min, max):
# x1 = x2 = origin + (i * self.lineSpacing)
# y1 = self.height
x1 = 0
y1 = y2 = origin + (i * self.lineSpacing)
if i % 10 == 0:
x2 = 40
if i >= 0:
font.setWeight(QFont.Bold)
font.setPixelSize(10)
painter.setFont(font)
painter.drawText(self.width-20, y1, f'{i}')
elif i % 5 == 0:
x2 = 25
else:
x2 = 13
if i >= 0:
painter.drawLine(x1, y1, x2, y2)
print(x2, y2)
def timerHandler():
tape.setCurTime(tape.currTime+1)
if __name__ == '__main__':
app = QApplication(sys.argv)
scene = QGraphicsScene(QRectF(-10, -100, 200, 850))
# scene.addItem(QGraphicsRectItem(scene.sceneRect()))
tape = TimeElapsedTape()
scene.addItem(tape)
timer = QTimer()
timer.setInterval(100)
timer.timeout.connect(timerHandler)
view = QGraphicsView()
view.setScene(scene)
view.show()
timer.start()
sys.exit(app.exec_())