diff options
Diffstat (limited to 'waveform_mouth.py')
| -rw-r--r-- | waveform_mouth.py | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/waveform_mouth.py b/waveform_mouth.py index b9c4238..71a10ea 100644 --- a/waveform_mouth.py +++ b/waveform_mouth.py @@ -7,17 +7,17 @@ # # Parts of Speak.activity are based on code from Measure.activity # Copyright (C) 2007 Arjun Sarwal - arjun@laptop.org -# +# # Speak.activity is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. -# +# # Speak.activity is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. -# +# # You should have received a copy of the GNU General Public License # along with Speak.activity. If not, see <http://www.gnu.org/licenses/>. @@ -25,63 +25,56 @@ from mouth import * - class WaveformMouth(Mouth): def __init__(self, audioSource, fill_color): Mouth.__init__(self, audioSource, fill_color) - + self.buffer_size = 100 self.peaks = [] - self.stop = False + self.stop=False self.y_mag_bias_multiplier = 1 self.y_mag = 0.7 def expose(self, widget, event): - """This function is the "expose" - event handler and does all the drawing.""" + """This function is the "expose" event handler and does all the drawing.""" bounds = self.get_allocation() - self.param1 = bounds.height / 65536.0 - self.param2 = bounds.height / 2.0 + self.param1 = bounds.height/65536.0 + self.param2 = bounds.height/2.0 #Create context, disable antialiasing self.context = widget.window.cairo_create() self.context.set_antialias(cairo.ANTIALIAS_NONE) - #set a clip region for the expose event. - #This reduces redrawing work (and time) - self.context.rectangle(event.area.x, - event.area.y, - event.area.width, - event.area.height) + #set a clip region for the expose event. This reduces redrawing work (and time) + self.context.rectangle(event.area.x, event.area.y,event.area.width, event.area.height) self.context.clip() # background self.context.set_source_rgba(*self.fill_color.get_rgba()) - self.context.rectangle(0, 0, bounds.width, bounds.height) + self.context.rectangle(0,0, bounds.width,bounds.height) self.context.fill() # Draw the waveform - self.context.set_line_width(min(bounds.height / 10.0, 10)) + self.context.set_line_width(min(bounds.height/10.0, 10)) count = 0 buflen = float(len(self.main_buffers)) for value in self.main_buffers: - peak = float(self.param1 * value * self.y_mag) +\ - self.y_mag_bias_multiplier * self.param2 + peak = float(self.param1*value*self.y_mag) + self.y_mag_bias_multiplier * self.param2 if peak >= bounds.height: peak = bounds.height if peak <= 0: peak = 0 - - x = count / buflen * bounds.width - self.context.line_to(x, bounds. height - peak) - + + x = count / buflen * bounds.width + self.context.line_to(x,bounds.height - peak) + count += 1 - self.context.set_source_rgb(0, 0, 0) + self.context.set_source_rgb(0,0,0) self.context.stroke() return True |