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Diffstat (limited to 'examples/tut10.py')
-rwxr-xr-x | examples/tut10.py | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/examples/tut10.py b/examples/tut10.py new file mode 100755 index 0000000..b16804e --- /dev/null +++ b/examples/tut10.py @@ -0,0 +1,145 @@ +#!/usr/bin/env python + +# TQt tutorial 10. + +import sys +from python_tqt import qt + + +class LCDRange(qt.TQVBox): + def __init__(self, parent=None, name=None): + qt.TQVBox.__init__(self, parent, name) + + lcd = qt.TQLCDNumber(2, self, "lcd") + self.slider = qt.TQSlider(qt.TQt.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.TQWidget): + def __init__(self, parent=None, name=None): + qt.TQWidget.__init__(self, parent, name) + + self.ang = 45 + self.f = 0 + self.setPalette(qt.TQPalette(qt.TQColor(250, 250, 200))) + + 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 paintEvent(self, ev): + if not ev.rect().intersects(self.cannonRect()): + return + + cr = self.cannonRect() + pix = qt.TQPixmap(cr.size()) + pix.fill(self, cr.topLeft()) + + p = qt.TQPainter(pix) + + p.setBrush(qt.TQt.blue) + p.setPen(qt.TQt.NoPen) + + p.translate(0, pix.height() - 1) + p.drawPie(qt.TQRect(-35, -35, 70, 70), 0, 90 * 16) + p.rotate(-self.ang) + p.drawRect(qt.TQRect(33, -4, 15, 8)) + p.end() + + p.begin(self) + p.drawPixmap(cr.topLeft(), pix) + + def cannonRect(self): + r = qt.TQRect(0, 0, 50, 50) + r.moveBottomLeft(self.rect().bottomLeft()) + return r + + def sizePolicy(self): + return qt.TQSizePolicy(qt.TQSizePolicy.Expanding, qt.TQSizePolicy.Expanding) + + +class MyWidget(qt.TQWidget): + def __init__(self, parent=None, name=None): + qt.TQWidget.__init__(self, parent, name) + + quit = qt.TQPushButton("&Quit", self, "quit") + quit.setFont(qt.TQFont("Times", 18, qt.TQFont.Bold)) + self.connect(quit, qt.SIGNAL("clicked()"), qt.tqApp, 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) + + grid = qt.TQGridLayout(self, 2, 2, 10) + + grid.addWidget(quit, 0, 0) + grid.addWidget(self.cannonField, 1, 1) + grid.setColStretch(1, 10) + + leftBox = qt.TQVBoxLayout() + + grid.addLayout(leftBox, 1, 0) + + leftBox.addWidget(self.angle) + leftBox.addWidget(self.force) + + self.angle.setValue(60) + self.force.setValue(25) + self.angle.setFocus() + + +qt.TQApplication.setColorSpec(qt.TQApplication.CustomColor) +a = qt.TQApplication(sys.argv) + +w = MyWidget() +w.setGeometry(100, 100, 500, 355) +a.setMainWidget(w) +w.show() +sys.exit(a.exec_loop()) |