nephilim/plugins/PlayControl.py

   1 #
   2 #    Copyright (C) 2009 Anton Khirnov <wyskas@gmail.com>
   3 #
   4 #    Nephilim is free software: you can redistribute it and/or modify
   5 #    it under the terms of the GNU General Public License as published by
   6 #    the Free Software Foundation, either version 3 of the License, or
   7 #    (at your option) any later version.
   8 #
   9 #    Nephilim is distributed in the hope that it will be useful,
  10 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 #    GNU General Public License for more details.
  13 #
  14 #    You should have received a copy of the GNU General Public License
  15 #    along with Nephilim.  If not, see <http://www.gnu.org/licenses/>.
  16 #
  17
  18 from PyQt4 import QtGui, QtCore
  19 from PyQt4.QtCore import QVariant
  20 import logging
  21
  22 from ..misc import Button
  23 from ..plugin import Plugin
  24
  25 class wgPlayControl(QtGui.QToolBar):
  26     """Displays controls for interacting with playing, like play, volume ..."""
  27     " control buttons"
  28     play_icon    = None
  29     pause_icon   = None
  30     play_action  = None
  31     stop_action  = None
  32     prev_action  = None
  33     next_action  = None
  34     vol_slider   = None
  35     repeat       = None
  36     random       = None
  37     p            = None
  38
  39     class VolumeSlider(QtGui.QSlider):
  40
  41         def __init__(self, parent):
  42             QtGui.QSlider.__init__(self, parent)
  43             self.setOrientation(parent.orientation())
  44             self.setMaximum(100)
  45             self.setToolTip('Volume control')
  46
  47         def paintEvent(self, event):
  48             painter = QtGui.QPainter(self)
  49             painter.eraseRect(self.rect())
  50
  51             grad = QtGui.QLinearGradient(0, 0, self.width(), self.height())
  52             grad.setColorAt(0, self.palette().color(QtGui.QPalette.Window))
  53             grad.setColorAt(1, self.palette().color(QtGui.QPalette.Highlight))
  54             if self.orientation() == QtCore.Qt.Horizontal:
  55                 rect = QtCore.QRect(0, 0, self.width() * self.value() / self.maximum(), self.height())
  56             else:
  57                 rect = QtCore.QRect(0, self.height() * (1 - float(self.value()) / self.maximum()), self.width(), self.height())
  58             painter.fillRect(rect, QtGui.QBrush(grad))
  59
  60     def __init__(self, p, parent = None):
  61         QtGui.QToolBar.__init__(self, p.name(), parent)
  62         self.setMovable(True)
  63         self.p = p
  64
  65         self.play_icon   = QtGui.QIcon('gfx/media-playback-start.svg')
  66         self.pause_icon  = QtGui.QIcon('gfx/media-playback-pause.svg')
  67
  68         self.play_action = self.addAction(self.play_icon, 'play', self.on_play_click)
  69         self.stop_action = self.addAction(QtGui.QIcon('gfx/media-playback-stop.svg'),     'stop', self.on_stop_click)
  70         self.prev_action = self.addAction(QtGui.QIcon('gfx/media-skip-backward.svg'), 'previous', self.on_prev_click)
  71         self.next_action = self.addAction(QtGui.QIcon('gfx/media-skip-forward.svg'),      'next', self.on_next_click)
  72         self.addSeparator()
  73
  74         self.vol_slider = self.VolumeSlider(self)
  75         self.connect(self.vol_slider, QtCore.SIGNAL('valueChanged(int)'),self.onVolumeSliderChange)
  76         self.addWidget(self.vol_slider)
  77         self.addSeparator()
  78
  79         self.random = self.addAction(QtGui.QIcon('gfx/media-playlist-shuffle.svgz'), 'random')
  80         self.random.setCheckable(True)
  81         self.connect(self.random, QtCore.SIGNAL('toggled(bool)'), self.p.mpclient().random)
  82         self.connect(self.p.mpclient(), QtCore.SIGNAL('random_changed'), self.random.setChecked)
  83
  84         self.repeat = self.addAction(QtGui.QIcon('gfx/media-playlist-repeat.svg'), 'repeat')
  85         self.repeat.setCheckable(True)
  86         self.connect(self.p.mpclient(), QtCore.SIGNAL('repeat_changed'), self.repeat.setChecked)
  87         self.connect(self.repeat, QtCore.SIGNAL('toggled(bool)'), self.p.mpclient().repeat)
  88
  89         self.connect(self, QtCore.SIGNAL('orientationChanged(Qt::Orientation)'), self.vol_slider.setOrientation)
  90
  91         self.connect(self.p.mpclient(), QtCore.SIGNAL('state_changed'),  self.onStateChange)
  92         self.connect(self.p.mpclient(), QtCore.SIGNAL('volume_changed'), self.onVolumeChange)
  93
  94     def onStateChange(self, new_state):
  95         status = self.p.mpclient().status()
  96
  97         if new_state == 'play':
  98             self.play_action.setIcon(self.play_icon)
  99             self.play_action.setToolTip('pause')
 100         elif new_state == 'pause' or new_state == 'stop':
 101             self.play_action.setIcon(self.pause_icon)
 102             self.play_action.setToolTip('play')
 103
 104     def onVolumeChange(self, new_vol):
 105         self.vol_slider.setValue(new_vol)
 106
 107     def on_play_click(self):
 108         status=self.p.mpclient().status()
 109         if status['state']=='play':
 110             logging.info('Toggling playback')
 111             self.p.mpclient().pause()
 112         elif status['state']=='stop':
 113             logging.info('Pausing playback')
 114             self.p.mpclient().play(None)
 115         else:
 116             self.p.mpclient().resume()
 117     def on_stop_click(self):
 118         logging.info('Stopping playback')
 119         self.p.mpclient().stop()
 120     def on_prev_click(self):
 121         logging.info('Playing previous')
 122         self.p.mpclient().previous()
 123     def on_next_click(self):
 124         logging.info('Playing next')
 125         self.p.mpclient().next()
 126     def onVolumeSliderChange(self):
 127         self.p.mpclient().set_volume(self.vol_slider.value())
 128
 129 class PlayControl(Plugin):
 130     o = None
 131
 132     def _load(self):
 133         self.o = wgPlayControl(self, None)
 134         self.parent().addToolBar(QtCore.Qt.TopToolBarArea, self.o)
 135     def _unload(self):
 136         self.parent().removeToolBar(self.o)
 137         self.o = None
 138     def getInfo(self):
 139         return "Have total control over the playing!"