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214 lines
6.2 KiB
214 lines
6.2 KiB
#!/usr/bin/env python
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# TQt tutorial 11.
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import sys
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import math
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from PyTQt import tqt
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class LCDRange(tqt.TQVBox):
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def __init__(self, parent=None, name=None):
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tqt.TQVBox.__init__(self, parent, name)
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lcd = tqt.TQLCDNumber(2, self, "lcd")
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self.slider = tqt.TQSlider(tqt.TQt.Horizontal, self, "slider")
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self.slider.setRange(0, 99)
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self.slider.setValue(0)
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self.connect(self.slider, tqt.TQ_SIGNAL("valueChanged(int)"), lcd, tqt.TQ_SLOT("display(int)"))
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self.connect(self.slider, tqt.TQ_SIGNAL("valueChanged(int)"), self, tqt.PYSIGNAL("valueChanged(int)"))
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self.setFocusProxy(self.slider)
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def value(self):
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return self.slider.value()
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def setValue(self, value):
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self.slider.setValue(value)
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def setRange(self, minVal, maxVal):
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if minVal < 0 or maxVal > 99 or minVal > maxVal:
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raise ValueError("LCDRange.setRange(): invalid range")
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self.slider.setRange(minVal, maxVal)
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class CannonField(tqt.TQWidget):
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def __init__(self, parent=None, name=None):
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tqt.TQWidget.__init__(self, parent, name)
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self.ang = 45
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self.f = 0
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self.timerCount = 0
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self.autoShootTimer = tqt.TQTimer(self, "movement handler")
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self.connect(self.autoShootTimer, tqt.TQ_SIGNAL("timeout()"), self.moveShot)
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self.shoot_ang = 0
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self.shoot_f = 0
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self.setPalette(tqt.TQPalette(tqt.TQColor(250, 250, 200)))
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self.barrelRect = tqt.TQRect(33, -4, 15, 8)
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def angle(self):
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return self.ang
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def setAngle(self, degrees):
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if degrees < 5:
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degrees = 5
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if degrees > 70:
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degrees = 70
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if self.ang == degrees:
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return
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self.ang = degrees
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self.repaint(self.cannonRect(), 0)
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self.emit(tqt.PYSIGNAL("angleChanged(int)"), (self.ang, ))
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def force(self):
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return self.f
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def setForce(self, newton):
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if newton < 0:
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newton = 0
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if self.f == newton:
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return
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self.f = newton
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self.emit(tqt.PYSIGNAL("forceChanged(int)"), (self.f, ))
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def shoot(self):
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if self.autoShootTimer.isActive():
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return
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self.timerCount = 0
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self.shoot_ang = self.ang
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self.shoot_f = self.f
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self.autoShootTimer.start(50)
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def moveShot(self):
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r = tqt.TQRegion(self.shotRect())
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self.timerCount = self.timerCount + 1
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shotR = self.shotRect()
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if shotR.x() > self.width() or shotR.y() > self.height():
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self.autoShootTimer.stop()
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else:
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r = r.unite(tqt.TQRegion(shotR))
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self.repaint(r)
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def paintEvent(self, ev):
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updateR = ev.rect()
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p = tqt.TQPainter(self)
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if updateR.intersects(self.cannonRect()):
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self.paintCannon(p)
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if self.autoShootTimer.isActive() and updateR.intersects(self.shotRect()):
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self.paintShot(p)
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def paintShot(self, p):
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p.setBrush(tqt.TQt.black)
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p.setPen(tqt.TQt.NoPen)
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p.drawRect(self.shotRect())
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def paintCannon(self, p):
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cr = self.cannonRect()
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pix = tqt.TQPixmap(cr.size())
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pix.fill(self, cr.topLeft())
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tmp = tqt.TQPainter(pix)
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tmp.setBrush(tqt.TQt.blue)
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tmp.setPen(tqt.TQt.NoPen)
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tmp.translate(0, pix.height() - 1)
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tmp.drawPie(tqt.TQRect(-35, -35, 70, 70), 0, 90 * 16)
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tmp.rotate(-self.ang)
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tmp.drawRect(self.barrelRect)
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tmp.end()
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p.drawPixmap(cr.topLeft(), pix)
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def cannonRect(self):
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r = tqt.TQRect(0, 0, 50, 50)
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r.moveBottomLeft(self.rect().bottomLeft())
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return r
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def shotRect(self):
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gravity = 4.0
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time = self.timerCount / 4.0
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velocity = self.shoot_f
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radians = self.shoot_ang * 3.14159265 / 180
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velx = velocity * math.cos(radians)
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vely = velocity * math.sin(radians)
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x0 = (self.barrelRect.right() + 5) * math.cos(radians)
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y0 = (self.barrelRect.right() + 5) * math.sin(radians)
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x = x0 + velx * time
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y = y0 + vely * time - 0.5 * gravity * time * time
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r = tqt.TQRect(0, 0, 6, 6)
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r.moveCenter(tqt.TQPoint(int(x), int(self.height() - 1 - y)))
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return r
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def sizePolicy(self):
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return tqt.TQSizePolicy(tqt.TQSizePolicy.Expanding, tqt.TQSizePolicy.Expanding)
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class MyWidget(tqt.TQWidget):
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def __init__(self, parent=None, name=None):
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tqt.TQWidget.__init__(self, parent, name)
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quit = tqt.TQPushButton("&Quit", self, "quit")
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quit.setFont(tqt.TQFont("Times", 18, tqt.TQFont.Bold))
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self.connect(quit, tqt.TQ_SIGNAL("clicked()"), tqt.tqApp, tqt.TQ_SLOT("quit()"))
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self.angle = LCDRange(self, "angle")
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self.angle.setRange(5, 70)
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self.force = LCDRange(self, "force")
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self.force.setRange(10, 50)
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self.cannonField = CannonField(self, "cannonField")
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self.connect(self.angle, tqt.PYSIGNAL("valueChanged(int)"), self.cannonField.setAngle)
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self.connect(self.cannonField, tqt.PYSIGNAL("angleChanged(int)"), self.angle.setValue)
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self.connect(self.force, tqt.PYSIGNAL("valueChanged(int)"), self.cannonField.setForce)
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self.connect(self.cannonField, tqt.PYSIGNAL("forceChanged(int)"), self.force.setValue)
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shoot = tqt.TQPushButton("&Shoot", self, "shoot")
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shoot.setFont(tqt.TQFont("Times", 18, tqt.TQFont.Bold))
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self.connect(shoot, tqt.TQ_SIGNAL("clicked()"), self.cannonField.shoot)
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grid = tqt.TQGridLayout(self, 2, 2, 10)
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grid.addWidget(quit, 0, 0)
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grid.addWidget(self.cannonField, 1, 1)
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grid.setColStretch(1, 10)
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leftBox = tqt.TQVBoxLayout()
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grid.addLayout(leftBox, 1, 0)
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leftBox.addWidget(self.angle)
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leftBox.addWidget(self.force)
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topBox = tqt.TQHBoxLayout()
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grid.addLayout(topBox, 0, 1)
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topBox.addWidget(shoot)
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topBox.addStretch(1)
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self.angle.setValue(60)
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self.force.setValue(25)
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self.angle.setFocus()
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tqt.TQApplication.setColorSpec(tqt.TQApplication.CustomColor)
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a = tqt.TQApplication(sys.argv)
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w = MyWidget()
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w.setGeometry(100, 100, 500, 355)
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a.setMainWidget(w)
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w.show()
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sys.exit(a.exec_loop())
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