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114 lines
2.4 KiB
114 lines
2.4 KiB
#!/usr/bin/env ruby -w
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require 'Qt'
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# an analog clock widget using an internal TQTimer
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class AnalogClock < TQt::Widget
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slots 'setTime(const TQTime&)', 'drawClock(TQPainter*)', 'timeout()'
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def initialize(*k)
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super(*k)
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@time = TQt::Time::currentTime
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@internalTimer = TQt::Timer.new(self)
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connect(@internalTimer, SIGNAL('timeout()'), self, SLOT('timeout()'))
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@internalTimer.start(5000)
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end
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def mousePressEvent(e)
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if isTopLevel
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topLeft = geometry.topLeft - frameGeometry.topLeft
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@clickPos = e.pos + topLeft
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end
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end
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def mouseMoveEvent(e)
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if isTopLevel
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move(e.globalPos - @clickPos) unless @clickPos.nil?
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end
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end
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def setTime(t)
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# erm. huh?
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timeout()
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end
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# The TQTimer::timeout() signal is received by this slot.
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def timeout
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new_time = TQt::Time::currentTime
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@time = @time.addSecs 5
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unless new_time.minute == @time.minute
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if autoMask
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updateMask
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else
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update
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end
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end
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end
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def paintEvent(blah)
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unless autoMask
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paint = TQt::Painter.new(self)
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paint.setBrush(colorGroup.foreground)
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drawClock(paint)
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paint.end
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end
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end
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# If clock is transparent, we use updateMask() instead of paintEvent()
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def updateMask
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bm = TQt::Bitmap.new(size)
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bm.fill(color0) # transparent
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paint = TQt::Painter.new
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paint.begin(bm, self)
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paint.setBrush(color1) # use non-transparent color
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paint.setPen(color1)
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drawClock(paint)
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paint.end
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setMask(bm)
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end
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# The clock is painted using a 1000x1000 square coordinate system, in
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# the centered square, as big as possible. The painter's pen and
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# brush colors are used.
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def drawClock(paint)
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paint.save
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paint.setWindow(-500,-500, 1000,1000)
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v = paint.viewport
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d = [v.width, v.height].min
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vpx = (v.left + (v.width-d)) / 2
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vpy = (v.top - (v.height-d)) / 2
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paint.setViewport(vpx, vpy, d, d)
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paint.save
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paint.rotate(30*(@time.hour%12-3) + @time.minute/2)
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pts = TQt::PointArray.new(4, [-20,0, 0,-20, 300,0, 0,20])
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paint.drawConvexPolygon(pts)
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paint.restore
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paint.save
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paint.rotate((@time.minute-15)*6)
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pts = TQt::PointArray.new(4, [-10,0, 0,-10, 400,0, 0,10])
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paint.drawConvexPolygon(pts)
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paint.restore;
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12.times {
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paint.drawLine(440,0, 460,0)
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paint.rotate(30)
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}
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paint.restore
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end
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def setAutoMask(background)
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setBackgroundMode(background ? PaletteForeground : PaletteBackground)
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TQt::Widget::setAutoMask(background)
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end
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end
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