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-rwxr-xr-xpython/pyqt/examples3/tut11.py213
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diff --git a/python/pyqt/examples3/tut11.py b/python/pyqt/examples3/tut11.py
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--- a/python/pyqt/examples3/tut11.py
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-#!/usr/bin/env python
-
-# Qt tutorial 11.
-
-import sys
-import math
-import qt
-
-
-class LCDRange(qt.QVBox):
- def __init__(self, parent=None, name=None):
- qt.QVBox.__init__(self, parent, name)
-
- lcd = qt.QLCDNumber(2, self, "lcd")
- self.slider = qt.QSlider(qt.Qt.Horizontal, self, "slider")
- self.slider.setRange(0, 99)
- self.slider.setValue(0)
- self.connect(self.slider, qt.SIGNAL("valueChanged(int)"), lcd, qt.SLOT("display(int)"))
- self.connect(self.slider, qt.SIGNAL("valueChanged(int)"), self, qt.PYSIGNAL("valueChanged(int)"))
-
- self.setFocusProxy(self.slider)
-
- def value(self):
- return self.slider.value()
-
- def setValue(self, value):
- self.slider.setValue(value)
-
- def setRange(self, minVal, maxVal):
- if minVal < 0 or maxVal > 99 or minVal > maxVal:
- raise ValueError, "LCDRange.setRange(): invalid range"
- self.slider.setRange(minVal, maxVal)
-
-
-class CannonField(qt.QWidget):
- def __init__(self, parent=None, name=None):
- qt.QWidget.__init__(self, parent, name)
-
- self.ang = 45
- self.f = 0
- self.timerCount = 0
-
- self.autoShootTimer = qt.QTimer(self, "movement handler")
- self.connect(self.autoShootTimer, qt.SIGNAL("timeout()"), self.moveShot)
-
- self.shoot_ang = 0
- self.shoot_f = 0
-
- self.setPalette(qt.QPalette(qt.QColor(250, 250, 200)))
-
- self.barrelRect = qt.QRect(33, -4, 15, 8)
-
- def angle(self):
- return self.ang
-
- def setAngle(self, degrees):
- if degrees < 5:
- degrees = 5
- if degrees > 70:
- degrees = 70
- if self.ang == degrees:
- return
- self.ang = degrees
- self.repaint(self.cannonRect(), 0)
- self.emit(qt.PYSIGNAL("angleChanged(int)"), (self.ang, ))
-
- def force(self):
- return self.f
-
- def setForce(self, newton):
- if newton < 0:
- newton = 0
- if self.f == newton:
- return
- self.f = newton
- self.emit(qt.PYSIGNAL("forceChanged(int)"), (self.f, ))
-
- def shoot(self):
- if self.autoShootTimer.isActive():
- return
-
- self.timerCount = 0
- self.shoot_ang = self.ang
- self.shoot_f = self.f
- self.autoShootTimer.start(50)
-
- def moveShot(self):
- r = qt.QRegion(self.shotRect())
- self.timerCount = self.timerCount + 1
-
- shotR = self.shotRect()
-
- if shotR.x() > self.width() or shotR.y() > self.height():
- self.autoShootTimer.stop()
- else:
- r = r.unite(qt.QRegion(shotR))
-
- self.repaint(r)
-
- def paintEvent(self, ev):
- updateR = ev.rect()
- p = qt.QPainter(self)
-
- if updateR.intersects(self.cannonRect()):
- self.paintCannon(p)
-
- if self.autoShootTimer.isActive() and updateR.intersects(self.shotRect()):
- self.paintShot(p)
-
- def paintShot(self, p):
- p.setBrush(qt.Qt.black)
- p.setPen(qt.Qt.NoPen)
- p.drawRect(self.shotRect())
-
- def paintCannon(self, p):
- cr = self.cannonRect()
- pix = qt.QPixmap(cr.size())
- pix.fill(self, cr.topLeft())
-
- tmp = qt.QPainter(pix)
- tmp.setBrush(qt.Qt.blue)
- tmp.setPen(qt.Qt.NoPen)
-
- tmp.translate(0, pix.height() - 1)
- tmp.drawPie(qt.QRect(-35, -35, 70, 70), 0, 90 * 16)
- tmp.rotate(-self.ang)
- tmp.drawRect(self.barrelRect)
- tmp.end()
-
- p.drawPixmap(cr.topLeft(), pix)
-
- def cannonRect(self):
- r = qt.QRect(0, 0, 50, 50)
- r.moveBottomLeft(self.rect().bottomLeft())
- return r
-
- def shotRect(self):
- gravity = 4.0
-
- time = self.timerCount / 4.0
- velocity = self.shoot_f
- radians = self.shoot_ang * 3.14159265 / 180
-
- velx = velocity * math.cos(radians)
- vely = velocity * math.sin(radians)
- x0 = (self.barrelRect.right() + 5) * math.cos(radians)
- y0 = (self.barrelRect.right() + 5) * math.sin(radians)
- x = x0 + velx * time
- y = y0 + vely * time - 0.5 * gravity * time * time
-
- r = qt.QRect(0, 0, 6, 6)
- r.moveCenter(qt.QPoint(x, self.height() - 1 - y))
- return r
-
- def sizePolicy(self):
- return qt.QSizePolicy(qt.QSizePolicy.Expanding, qt.QSizePolicy.Expanding)
-
-
-class MyWidget(qt.QWidget):
- def __init__(self, parent=None, name=None):
- qt.QWidget.__init__(self, parent, name)
-
- quit = qt.QPushButton("&Quit", self, "quit")
- quit.setFont(qt.QFont("Times", 18, qt.QFont.Bold))
- self.connect(quit, qt.SIGNAL("clicked()"), qt.qApp, qt.SLOT("quit()"))
-
- self.angle = LCDRange(self, "angle")
- self.angle.setRange(5, 70)
-
- self.force = LCDRange(self, "force")
- self.force.setRange(10, 50)
-
- self.cannonField = CannonField(self, "cannonField")
-
- self.connect(self.angle, qt.PYSIGNAL("valueChanged(int)"), self.cannonField.setAngle)
- self.connect(self.cannonField, qt.PYSIGNAL("angleChanged(int)"), self.angle.setValue)
-
- self.connect(self.force, qt.PYSIGNAL("valueChanged(int)"), self.cannonField.setForce)
- self.connect(self.cannonField, qt.PYSIGNAL("forceChanged(int)"), self.force.setValue)
-
- shoot = qt.QPushButton("&Shoot", self, "shoot")
- shoot.setFont(qt.QFont("Times", 18, qt.QFont.Bold))
- self.connect(shoot, qt.SIGNAL("clicked()"), self.cannonField.shoot)
-
- grid = qt.QGridLayout(self, 2, 2, 10)
-
- grid.addWidget(quit, 0, 0)
- grid.addWidget(self.cannonField, 1, 1)
- grid.setColStretch(1, 10)
-
- leftBox = qt.QVBoxLayout()
- grid.addLayout(leftBox, 1, 0)
- leftBox.addWidget(self.angle)
- leftBox.addWidget(self.force)
-
- topBox = qt.QHBoxLayout()
- grid.addLayout(topBox, 0, 1)
- topBox.addWidget(shoot)
- topBox.addStretch(1)
-
- self.angle.setValue(60)
- self.force.setValue(25)
- self.angle.setFocus()
-
-
-qt.QApplication.setColorSpec(qt.QApplication.CustomColor)
-a = qt.QApplication(sys.argv)
-
-w = MyWidget()
-w.setGeometry(100, 100, 500, 355)
-a.setMainWidget(w)
-w.show()
-sys.exit(a.exec_loop())