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  • Committer: Package Import Robot
  • Author(s): Nik Lutz
  • Date: 2011-09-25 18:05:00 UTC
  • Revision ID: package-import@ubuntu.com-20110925180500-6ip433wcg3lda7dn
Tags: upstream-0.13.1
Import upstream version 0.13.1

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contents/code/LabelSlider.py
 
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# -*- coding: utf-8 -*-
 
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# copyright 2009  Nik Lutz
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 3 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this library; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 
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# USA
 
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import datetime
 
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from PyQt4.QtCore import *
 
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from PyQt4.QtGui import *
 
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from PyKDE4.plasma import Plasma
 
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from PyKDE4 import plasmascript
 
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from PyKDE4.kdeui import *
 
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from PyKDE4.kdecore import *
 
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from PyKDE4.kdecore import *
 
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from PyKDE4.plasma import *
 
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class Label(Plasma.Label):
 
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    volumeChanged = pyqtSignal(int)
 
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    def __init__(self, parent=None):
 
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        self.text = ""
 
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        self.bold_text = ""
 
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        Plasma.Label.__init__(self, parent)
 
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    def setText(self, text):
 
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        self.text = text
 
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        self._set_text()
 
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    def setBoldText(self,text):
 
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        self.bold_text = text
 
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        self._set_text()
 
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    def _set_text(self):
 
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        Plasma.Label.setText(self, "<b>"+self.bold_text+"</b> "+self.text)
 
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    def setMinimum(self, value):
 
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        pass
 
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    def setMaximum(self, value):
 
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        pass
 
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    def update_with_info(self, info):
 
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        pass
 
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class LabelSlider(Plasma.Slider):
 
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    volumeChanged = pyqtSignal(int)
 
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    def __init__(self):
 
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        self.DELAY=  1
 
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        self.text = ""
 
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        self.bold_text = ""
 
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        d =  datetime.timedelta(seconds=2)
 
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        self.pulse_timestamp = datetime.datetime.now()  + d
 
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        self.plasma_timestamp = datetime.datetime.now() + d
 
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        Plasma.Slider.__init__(self)
 
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        self.label = Label(self)
 
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        self.label.setPos(0, -4)
 
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        self.connect(self, SIGNAL("geometryChanged()"), self._resize_widgets)
 
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        self.valueChanged.connect( self.on_slider_cb)
 
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    def setMaximum(self, value, showticks=True):
 
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        Plasma.Slider.setMaximum(self,value)
 
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        if value > 100 and showticks:
 
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            self.nativeWidget().setTickInterval(100)
 
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            self.nativeWidget().setTickPosition(QSlider.TicksBothSides)
 
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        else:
 
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            self.nativeWidget().setTickPosition(QSlider.NoTicks)
 
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    def _resize_widgets(self):
 
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        w = self.size().width()
 
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        self.label.setMinimumWidth(w)
 
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        self.label.setMaximumWidth(w)
 
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        # set abs position of label, respect fonts-size
 
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        h = self.size().height()
 
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        s = Plasma.Theme.defaultTheme().fontMetrics().height() + 2
 
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        v = int ((h/2) - s)
 
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        self.label.setPos(0,v)
 
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    def setText(self, text):
 
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        self.label.setText(text)
 
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    def setBoldText(self,text):
 
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        self.label.setBoldText(text)
 
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    def setValueFromPlasma(self, value):
 
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        if self.check_pulse_timestamp():
 
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            self.update_plasma_timestamp()
 
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            self.setValue(value)
 
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    def update_with_info(self, info):
 
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        self.setValueFromPulse(info.getVolume())
 
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    def setValueFromPulse(self, value):
 
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        if self.check_plasma_timestamp():
 
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            self.update_pulse_timestamp()
 
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            self.setValue(value)
 
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    def on_slider_cb(self, value):
 
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        if self.check_pulse_timestamp():
 
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            self.update_plasma_timestamp()
 
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            self.volumeChanged.emit(value)
 
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# private
 
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    def update_pulse_timestamp(self):
 
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        self.pulse_timestamp = datetime.datetime.now()
 
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    def update_plasma_timestamp(self):
 
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        self.plasma_timestamp = datetime.datetime.now()
 
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## testing
 
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    def check_plasma_timestamp(self):
 
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        now = datetime.datetime.now()
 
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        return  (now - self.plasma_timestamp ).seconds > self.DELAY
 
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    def check_pulse_timestamp(self):
 
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        now = datetime.datetime.now()
 
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        return  (now - self.pulse_timestamp ).seconds > self.DELAY
 
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class VerticalSlider(LabelSlider):
 
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    volumeChanged = pyqtSignal(int)
 
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    def __init__(self):
 
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        LabelSlider.__init__(self)
 
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        self.label.setRotation(-90)
 
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    def _resize_widgets(self):
 
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        h = self.size().height()
 
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        self.label.setPos(-6, h)
 
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        w = self.size().height()
 
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        self.label.setMinimumWidth(w)
 
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        self.label.setMaximumWidth(w)