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examples/fvumeter.py: condense code by using table and loop
Original commit message from CVS: 2005-09-23 Thomas Vander Stichele <thomas at apestaart dot org> * examples/fvumeter.py: condense code by using table and loop * examples/vumeter.py: fix up example for new API for both bus and level element
This commit is contained in:
Thomas Vander Stichele
parent
cfdc81b592
commit
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4 changed files with 52 additions and 100 deletions
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@ -1,3 +1,10 @@
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2005-09-23 Thomas Vander Stichele <thomas at apestaart dot org>
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* examples/fvumeter.py:
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condense code by using table and loop
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* examples/vumeter.py:
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fix up example for new API for both bus and level element
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2005-09-23 Thomas Vander Stichele <thomas at apestaart dot org>
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* gst/gst.defs:
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2
common
2
common
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@ -1 +1 @@
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Subproject commit 345fd9851051274dd758a19bbe33dbb561b4d303
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Subproject commit 7caeee4b949b4388927fec7fcf25f767429bde30
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@ -194,89 +194,31 @@ class FVUMeter(gtk.DrawingArea):
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self.topborder + vumeter_height)
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# draw tick marks
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# - 90.0 dB
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self.window.draw_line(self.style.black_gc, self.leftborder,
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h - self.bottomborder, self.leftborder,
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-90")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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scalers = [
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('-90', 0.0),
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('-40', 0.15),
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('-30', 0.30),
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('-20', 0.50),
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('-10', 0.75),
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( '-5', 0.875),
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( '0', 1.0),
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]
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for level, scale in scalers:
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int (scale * vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(scale * vumeter_width),
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h - self.bottomborder + 5)
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self.window.draw_line(self.style.black_gc,
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self.leftborder, h - self.bottomborder,
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self.leftborder, h - self.bottomborder + 5)
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layout = self.create_pango_layout(level)
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(scale * vumeter_width) - int(layout_width / 2),
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h - self.bottomborder + 7, layout)
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# -40.0 dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int(0.15*vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(0.15*vumeter_width),
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-40")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(0.15*vumeter_width) - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# -30.0 dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int(0.30*vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(0.30*vumeter_width),
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-30")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(0.30*vumeter_width) - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# -20.0 dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int(0.50*vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(0.50*vumeter_width),
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-20")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(0.50*vumeter_width) - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# -10.0dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int(0.75*vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(0.75*vumeter_width),
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-10")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(0.75*vumeter_width) - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# - 5.0dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + int(0.875*vumeter_width),
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h - self.bottomborder,
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self.leftborder + int(0.875*vumeter_width),
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("-5")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + int(0.875*vumeter_width) - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# 0.0dB
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self.window.draw_line(self.style.black_gc,
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self.leftborder + vumeter_width,
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h - self.bottomborder,
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self.leftborder + vumeter_width,
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h - self.bottomborder + 5)
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layout = self.create_pango_layout("0")
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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self.leftborder + vumeter_width - int(layout_width/2),
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h - self.bottomborder + 7, layout)
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# draw the value to the right
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# draw the peak level to the right
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layout = self.create_pango_layout("%.2fdB" % self.peaklevel)
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layout_width, layout_height = layout.get_pixel_size()
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self.window.draw_layout(self.style.black_gc,
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@ -51,9 +51,13 @@ class Window(gtk.Dialog):
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self.set_default_size(200,60)
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self.set_title('Volume Level')
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self.connect('delete-event', lambda *x: gtk.main_quit())
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self.vu = fvumeter.FVUMeter()
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self.vu.show()
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self.vbox.pack_start(self.vu)
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self.vus = []
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self.vus.append(fvumeter.FVUMeter())
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self.vus.append(fvumeter.FVUMeter())
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self.vbox.add(self.vus[0])
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self.vbox.add(self.vus[1])
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self.vus[0].show()
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self.vus[1].show()
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def error(self, message, secondary=None):
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m = gtk.MessageDialog(self,
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@ -66,18 +70,13 @@ class Window(gtk.Dialog):
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m.run()
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def on_message(self, bus, message):
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t = message.type
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if t == gst.MESSAGE_STATE_CHANGED:
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pass
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if (t == gst.MESSAGE_APPLICATION and
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message.structure.get_name() == 'level'):
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if message.structure.get_name() == 'level':
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s = message.structure
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self.vu.set_property('peak', clamp(s['peak'][0], -90.0, 0.0))
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self.vu.set_property('decay', clamp(s['decay'][0], -90.0, 0.0))
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else:
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print '%s: %s:' % (message.src.get_path_string(),
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message.type.value_nicks[1])
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print ' %s' % message.structure.to_string()
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for i in range(0, len(s['peak'])):
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self.vus[i].set_property('peak',
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clamp(s['peak'][i], -90.0, 0.0))
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self.vus[i].set_property('decay',
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clamp(s['decay'][i], -90.0, 0.0))
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return True
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def run(self):
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@ -86,8 +85,12 @@ class Window(gtk.Dialog):
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s = 'alsasrc ! level message=true ! fakesink'
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pipeline = gst.parse_launch(s)
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self.set_sensitive(True)
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watch_id = pipeline.get_bus().add_watch(self.on_message)
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if pipeline.set_state(gst.STATE_PLAYING) == gst.STATE_SUCCESS:
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# FIXME: using gst.MESSAGE_APPLICATION does not give me
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# any messages at all
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watch_id = pipeline.get_bus().add_watch(gst.MESSAGE_ANY,
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self.on_message)
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if pipeline.set_state(gst.STATE_PLAYING) == gst.STATE_CHANGE_SUCCESS:
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print "going into main"
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gtk.Dialog.run(self)
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else:
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self.error('Could not set state')
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@ -99,5 +102,5 @@ class Window(gtk.Dialog):
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if __name__ == '__main__':
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w = Window()
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w.show()
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w.show_all()
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w.run()
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