Serge NOEL
105 lines
4.1 KiB
Python
105 lines
4.1 KiB
Python
# Author: Lionel Jeanson copyright 2009 - 2021
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# Part of the JMRI distribution
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#
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# Create a Jynstrument with video view from connected webcam
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#
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# Build using https://github.com/sarxos/webcam-capture
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# You'll need webcam-capture-XXX.jar and bridj-XXX.jar copied from webcam-capture release to your JMRI lib folder
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#
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depErr="""Required dependency must be installed!
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You need to install libraries from sarxos webcam library.
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https://github.com/sarxos/webcam-capture
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Copy to your JMRI lib folder :
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webcam-capture-driver-ipcam-XXX.jar
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bridj-XXX.jar (from zip file libs subfolder)
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"""
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import java
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import java.awt
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import java.awt.event
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import java.beans
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import jmri
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import jmri.jmrit.jython.Jynstrument as Jynstrument
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import java.awt.BorderLayout as BorderLayout
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import java.awt.event.ItemListener as ItemListener
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import javax.swing.JCheckBoxMenuItem as JCheckBoxMenuItem
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import javax.swing.JOptionPane as JOptionPane
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import javax.swing.JTextArea as JTextArea
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import javax.swing.JFrame as JFrame
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try:
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import com.github.sarxos.webcam.Webcam as Webcam
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import com.github.sarxos.webcam.WebcamPanel as WebcamPanel
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import com.github.sarxos.webcam.WebcamPicker as WebcamPicker
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import com.github.sarxos.webcam.WebcamResolution as WebcamResolution
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except:
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JOptionPane.showMessageDialog(JFrame(), JTextArea(depErr), "Missing dependency", JOptionPane.ERROR_MESSAGE);
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class VideoView(Jynstrument, ItemListener):
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def getExpectedContextClassName(self):
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# This Jynstrument likes to be in a ThrottleFrame and not anywhere else
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return "jmri.jmrit.throttle.UIImplementation.ThrottleFrame"
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def init(self):
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self.setLayout( BorderLayout() )
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self.miSelector = JCheckBoxMenuItem ( "Show camera selector" )
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self.miSelector.addItemListener(self)
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self.miFill = JCheckBoxMenuItem ( "Fill window" )
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self.miFill.addItemListener(self)
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self.miMirror = JCheckBoxMenuItem ( "Mirror", True )
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self.miMirror.addItemListener(self)
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self.getPopUpMenu().add( self.miFill )
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self.getPopUpMenu().add( self.miSelector )
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self.getPopUpMenu().add( self.miMirror )
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self.webcam = Webcam.getDefault()
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self.addCamPanel()
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def quit(self): # very important to clean up everything to make sure GC will collect us
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self.webcamPanel.stop()
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self.webcam.close()
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self.webcam = None
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def addCamPanel(self):
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self.webcam.close()
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self.webcam.setViewSize(WebcamResolution.VGA.getSize());
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self.webcamPanel = WebcamPanel(self.webcam)
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self.webcamPanel.setMirrored(self.miMirror.isSelected())
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if ( self.miFill.isSelected() ) :
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self.webcamPanel.setFillArea( True )
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else :
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self.webcamPanel.setFitArea( True )
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self.add(self.webcamPanel, BorderLayout.CENTER)
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self.webcam.open()
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# this is a good way to make sure that we're are actaully GCed
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def __del__(self):
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print "in destructor"
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def itemStateChanged(self, evt):
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if (evt.getSource() == self.miSelector ):
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if (evt.getStateChange() == java.awt.event.ItemEvent.SELECTED ) :
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self.picker = WebcamPicker();
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self.picker.addItemListener(self)
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self.add(self.picker, BorderLayout.PAGE_END)
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else :
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self.remove(self.picker)
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self.picker = None
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self.revalidate()
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if (evt.getSource() == self.miFill ):
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if (evt.getStateChange() == java.awt.event.ItemEvent.SELECTED ) :
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self.webcamPanel.setFillArea( True )
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else :
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self.webcamPanel.setFitArea( True )
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if (evt.getSource() == self.miMirror ):
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self.webcamPanel.setMirrored(self.miMirror.isSelected())
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if (evt.getSource() == self.picker ):
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self.webcamPanel.stop()
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self.remove(self.webcamPanel)
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self.webcam.close()
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self.webcam = evt.getItem()
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self.addCamPanel()
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self.revalidate()
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