git.maemo.org Git - gc-dialer/blob - src/util/qui_utils.py

   1 import sys
   2 import logging
   3
   4 from PyQt4 import QtCore
   5 from PyQt4 import QtGui
   6
   7 import misc
   8
   9
  10 _moduleLogger = logging.getLogger(__name__)
  11
  12
  13 class QErrorLog(QtCore.QObject):
  14
  15         messagePushed = QtCore.pyqtSignal()
  16         messagePopped = QtCore.pyqtSignal()
  17
  18         def __init__(self):
  19                 QtCore.QObject.__init__(self)
  20                 self._messages = []
  21
  22         def push_message(self, message):
  23                 self._messages.append(message)
  24                 self.messagePushed.emit()
  25
  26         def push_exception(self):
  27                 userMessage = str(sys.exc_info()[1])
  28                 _moduleLogger.exception(userMessage)
  29                 self.push_message(userMessage)
  30
  31         def pop_message(self):
  32                 del self._messages[0]
  33                 self.messagePopped.emit()
  34
  35         def peek_message(self):
  36                 return self._messages[0]
  37
  38         def __len__(self):
  39                 return len(self._messages)
  40
  41
  42 class ErrorDisplay(object):
  43
  44         def __init__(self, errorLog):
  45                 self._errorLog = errorLog
  46                 self._errorLog.messagePushed.connect(self._on_message_pushed)
  47                 self._errorLog.messagePopped.connect(self._on_message_popped)
  48
  49                 errorIcon = get_theme_icon(("dialog-error", "app_install_error", "gtk-dialog-error"))
  50                 self._severityIcon = errorIcon.pixmap(32, 32)
  51                 self._severityLabel = QtGui.QLabel()
  52                 self._severityLabel.setPixmap(self._severityIcon)
  53
  54                 self._message = QtGui.QLabel()
  55                 self._message.setText("Boo")
  56
  57                 closeIcon = get_theme_icon(("window-close", "general_close", "gtk-close"))
  58                 self._closeLabel = QtGui.QPushButton(closeIcon, "")
  59                 self._closeLabel.clicked.connect(self._on_close)
  60
  61                 self._controlLayout = QtGui.QHBoxLayout()
  62                 self._controlLayout.addWidget(self._severityLabel)
  63                 self._controlLayout.addWidget(self._message)
  64                 self._controlLayout.addWidget(self._closeLabel)
  65
  66                 self._topLevelLayout = QtGui.QHBoxLayout()
  67                 self._topLevelLayout.addLayout(self._controlLayout)
  68                 self._widget = QtGui.QWidget()
  69                 self._widget.setLayout(self._topLevelLayout)
  70                 self._widget.hide()
  71
  72         @property
  73         def toplevel(self):
  74                 return self._widget
  75
  76         @QtCore.pyqtSlot()
  77         @QtCore.pyqtSlot(bool)
  78         @misc.log_exception(_moduleLogger)
  79         def _on_close(self, checked = False):
  80                 self._errorLog.pop_message()
  81
  82         @QtCore.pyqtSlot()
  83         @misc.log_exception(_moduleLogger)
  84         def _on_message_pushed(self):
  85                 if 1 <= len(self._errorLog) and self._widget.isHidden():
  86                         self._message.setText(self._errorLog.peek_message())
  87                         self._widget.show()
  88
  89         @QtCore.pyqtSlot()
  90         @misc.log_exception(_moduleLogger)
  91         def _on_message_popped(self):
  92                 if len(self._errorLog) == 0:
  93                         self._message.setText("")
  94                         self._widget.hide()
  95                 else:
  96                         self._message.setText(self._errorLog.peek_message())
  97
  98
  99 class QHtmlDelegate(QtGui.QStyledItemDelegate):
 100
 101         # @bug Doesn't show properly with dark themes (Maemo)
 102         # @bug Not showing all of a message
 103
 104         def paint(self, painter, option, index):
 105                 newOption = QtGui.QStyleOptionViewItemV4(option)
 106                 self.initStyleOption(newOption, index)
 107
 108                 doc = QtGui.QTextDocument()
 109                 doc.setHtml(newOption.text)
 110                 doc.setTextWidth(newOption.rect.width())
 111
 112                 if newOption.widget is not None:
 113                         style = newOption.widget.style()
 114                 else:
 115                         style = QtGui.QApplication.style()
 116
 117                 newOption.text = ""
 118                 style.drawControl(QtGui.QStyle.CE_ItemViewItem, newOption, painter)
 119
 120                 ctx = QtGui.QAbstractTextDocumentLayout.PaintContext()
 121                 if newOption.state & QtGui.QStyle.State_Selected:
 122                         ctx.palette.setColor(
 123                                 QtGui.QPalette.Text,
 124                                 newOption.palette.color(
 125                                         QtGui.QPalette.Active,
 126                                         QtGui.QPalette.HighlightedText
 127                                 )
 128                         )
 129
 130                 textRect = style.subElementRect(QtGui.QStyle.SE_ItemViewItemText, newOption)
 131                 painter.save()
 132                 painter.translate(textRect.topLeft())
 133                 painter.setClipRect(textRect.translated(-textRect.topLeft()))
 134                 doc.documentLayout().draw(painter, ctx)
 135                 painter.restore()
 136
 137         def sizeHint(self, option, index):
 138                 newOption = QtGui.QStyleOptionViewItemV4(option)
 139                 self.initStyleOption(newOption, index)
 140
 141                 doc = QtGui.QTextDocument()
 142                 doc.setHtml(newOption.text)
 143                 doc.setTextWidth(newOption.rect.width())
 144                 size = QtCore.QSize(doc.idealWidth(), doc.size().height())
 145                 return size
 146
 147
 148 def _null_set_stackable(window, isStackable):
 149         pass
 150
 151
 152 def _maemo_set_stackable(window, isStackable):
 153         window.setAttribute(QtCore.Qt.WA_Maemo5StackedWindow, isStackable)
 154
 155
 156 try:
 157         QtCore.Qt.WA_Maemo5StackedWindow
 158         set_stackable = _maemo_set_stackable
 159 except AttributeError:
 160         set_stackable = _null_set_stackable
 161
 162
 163 def _null_set_autorient(window, isStackable):
 164         pass
 165
 166
 167 def _maemo_set_autorient(window, isStackable):
 168         window.setAttribute(QtCore.Qt.WA_Maemo5StackedWindow, isStackable)
 169
 170
 171 try:
 172         QtCore.Qt.WA_Maemo5AutoOrientation
 173         set_autorient = _maemo_set_autorient
 174 except AttributeError:
 175         set_autorient = _null_set_autorient
 176
 177
 178 def _null_set_landscape(window, isStackable):
 179         pass
 180
 181
 182 def _maemo_set_landscape(window, isStackable):
 183         window.setAttribute(QtCore.Qt.WA_Maemo5StackedWindow, isStackable)
 184
 185
 186 try:
 187         QtCore.Qt.WA_Maemo5LandscapeOrientation
 188         set_landscape = _maemo_set_landscape
 189 except AttributeError:
 190         set_landscape = _null_set_landscape
 191
 192
 193 def _null_set_portrait(window, isStackable):
 194         pass
 195
 196
 197 def _maemo_set_portrait(window, isStackable):
 198         window.setAttribute(QtCore.Qt.WA_Maemo5StackedWindow, isStackable)
 199
 200
 201 try:
 202         QtCore.Qt.WA_Maemo5PortraitOrientation
 203         set_portrait = _maemo_set_portrait
 204 except AttributeError:
 205         set_portrait = _null_set_portrait
 206
 207
 208 def _null_show_progress_indicator(window, isStackable):
 209         pass
 210
 211
 212 def _maemo_show_progress_indicator(window, isStackable):
 213         window.setAttribute(QtCore.Qt.WA_Maemo5StackedWindow, isStackable)
 214
 215
 216 try:
 217         QtCore.Qt.WA_Maemo5ShowProgressIndicator
 218         show_progress_indicator = _maemo_show_progress_indicator
 219 except AttributeError:
 220         show_progress_indicator = _null_show_progress_indicator
 221
 222
 223 def _null_mark_numbers_preferred(widget):
 224         pass
 225
 226
 227 def _newqt_mark_numbers_preferred(widget):
 228         widget.setInputMethodHints(QtCore.Qt.ImhPreferNumbers)
 229
 230
 231 try:
 232         QtCore.Qt.ImhPreferNumbers
 233         mark_numbers_preferred = _newqt_mark_numbers_preferred
 234 except AttributeError:
 235         mark_numbers_preferred = _null_mark_numbers_preferred
 236
 237
 238 def screen_orientation():
 239         geom = QtGui.QApplication.desktop().screenGeometry()
 240         if geom.width() <= geom.height():
 241                 return QtCore.Qt.Vertical
 242         else:
 243                 return QtCore.Qt.Horizontal
 244
 245
 246 def _null_get_theme_icon(iconNames, fallback = None):
 247         icon = fallback if fallback is not None else QtGui.QIcon()
 248         return icon
 249
 250
 251 def _newqt_get_theme_icon(iconNames, fallback = None):
 252         for iconName in iconNames:
 253                 if QtGui.QIcon.hasThemeIcon(iconName):
 254                         icon = QtGui.QIcon.fromTheme(iconName)
 255                         break
 256         else:
 257                 icon = fallback if fallback is not None else QtGui.QIcon()
 258         return icon
 259
 260
 261 try:
 262         QtGui.QIcon.fromTheme
 263         get_theme_icon = _newqt_get_theme_icon
 264 except AttributeError:
 265         get_theme_icon = _null_get_theme_icon
 266