--- /dev/null
+#!/usr/bin/env python
+
+import math
+import logging
+
+import qt_compat
+QtCore = qt_compat.QtCore
+QtGui = qt_compat.import_module("QtGui")
+
+import misc as misc_utils
+
+
+_moduleLogger = logging.getLogger(__name__)
+
+
+_TWOPI = 2 * math.pi
+
+
+def _radius_at(center, pos):
+ delta = pos - center
+ xDelta = delta.x()
+ yDelta = delta.y()
+
+ radius = math.sqrt(xDelta ** 2 + yDelta ** 2)
+ return radius
+
+
+def _angle_at(center, pos):
+ delta = pos - center
+ xDelta = delta.x()
+ yDelta = delta.y()
+
+ radius = math.sqrt(xDelta ** 2 + yDelta ** 2)
+ angle = math.acos(xDelta / radius)
+ if 0 <= yDelta:
+ angle = _TWOPI - angle
+
+ return angle
+
+
+class QActionPieItem(object):
+
+ def __init__(self, action, weight = 1):
+ self._action = action
+ self._weight = weight
+
+ def action(self):
+ return self._action
+
+ def setWeight(self, weight):
+ self._weight = weight
+
+ def weight(self):
+ return self._weight
+
+ def setEnabled(self, enabled = True):
+ self._action.setEnabled(enabled)
+
+ def isEnabled(self):
+ return self._action.isEnabled()
+
+
+class PieFiling(object):
+
+ INNER_RADIUS_DEFAULT = 64
+ OUTER_RADIUS_DEFAULT = 192
+
+ SELECTION_CENTER = -1
+ SELECTION_NONE = -2
+
+ NULL_CENTER = QActionPieItem(QtGui.QAction(None))
+
+ def __init__(self):
+ self._innerRadius = self.INNER_RADIUS_DEFAULT
+ self._outerRadius = self.OUTER_RADIUS_DEFAULT
+ self._children = []
+ self._center = self.NULL_CENTER
+
+ self._cacheIndexToAngle = {}
+ self._cacheTotalWeight = 0
+
+ def insertItem(self, item, index = -1):
+ self._children.insert(index, item)
+ self._invalidate_cache()
+
+ def removeItemAt(self, index):
+ item = self._children.pop(index)
+ self._invalidate_cache()
+
+ def set_center(self, item):
+ if item is None:
+ item = self.NULL_CENTER
+ self._center = item
+
+ def center(self):
+ return self._center
+
+ def clear(self):
+ del self._children[:]
+ self._center = self.NULL_CENTER
+ self._invalidate_cache()
+
+ def itemAt(self, index):
+ return self._children[index]
+
+ def indexAt(self, center, point):
+ return self._angle_to_index(_angle_at(center, point))
+
+ def innerRadius(self):
+ return self._innerRadius
+
+ def setInnerRadius(self, radius):
+ self._innerRadius = radius
+
+ def outerRadius(self):
+ return self._outerRadius
+
+ def setOuterRadius(self, radius):
+ self._outerRadius = radius
+
+ def __iter__(self):
+ return iter(self._children)
+
+ def __len__(self):
+ return len(self._children)
+
+ def __getitem__(self, index):
+ return self._children[index]
+
+ def _invalidate_cache(self):
+ self._cacheIndexToAngle.clear()
+ self._cacheTotalWeight = sum(child.weight() for child in self._children)
+ if self._cacheTotalWeight == 0:
+ self._cacheTotalWeight = 1
+
+ def _index_to_angle(self, index, isShifted):
+ key = index, isShifted
+ if key in self._cacheIndexToAngle:
+ return self._cacheIndexToAngle[key]
+ index = index % len(self._children)
+
+ baseAngle = _TWOPI / self._cacheTotalWeight
+
+ angle = math.pi / 2
+ if isShifted:
+ if self._children:
+ angle -= (self._children[0].weight() * baseAngle) / 2
+ else:
+ angle -= baseAngle / 2
+ while angle < 0:
+ angle += _TWOPI
+
+ for i, child in enumerate(self._children):
+ if index < i:
+ break
+ angle += child.weight() * baseAngle
+ while _TWOPI < angle:
+ angle -= _TWOPI
+
+ self._cacheIndexToAngle[key] = angle
+ return angle
+
+ def _angle_to_index(self, angle):
+ numChildren = len(self._children)
+ if numChildren == 0:
+ return self.SELECTION_CENTER
+
+ baseAngle = _TWOPI / self._cacheTotalWeight
+
+ iterAngle = math.pi / 2 - (self.itemAt(0).weight() * baseAngle) / 2
+ while iterAngle < 0:
+ iterAngle += _TWOPI
+
+ oldIterAngle = iterAngle
+ for index, child in enumerate(self._children):
+ iterAngle += child.weight() * baseAngle
+ if oldIterAngle < angle and angle <= iterAngle:
+ return index - 1 if index != 0 else numChildren - 1
+ elif oldIterAngle < (angle + _TWOPI) and (angle + _TWOPI <= iterAngle):
+ return index - 1 if index != 0 else numChildren - 1
+ oldIterAngle = iterAngle
+
+
+class PieArtist(object):
+
+ ICON_SIZE_DEFAULT = 48
+
+ SHAPE_CIRCLE = "circle"
+ SHAPE_SQUARE = "square"
+ DEFAULT_SHAPE = SHAPE_SQUARE
+
+ BACKGROUND_FILL = "fill"
+ BACKGROUND_NOFILL = "no fill"
+
+ def __init__(self, filing, background = BACKGROUND_FILL):
+ self._filing = filing
+
+ self._cachedOuterRadius = self._filing.outerRadius()
+ self._cachedInnerRadius = self._filing.innerRadius()
+ canvasSize = self._cachedOuterRadius * 2 + 1
+ self._canvas = QtGui.QPixmap(canvasSize, canvasSize)
+ self._mask = None
+ self._backgroundState = background
+ self.palette = None
+
+ def pieSize(self):
+ diameter = self._filing.outerRadius() * 2 + 1
+ return QtCore.QSize(diameter, diameter)
+
+ def centerSize(self):
+ painter = QtGui.QPainter(self._canvas)
+ text = self._filing.center().action().text()
+ fontMetrics = painter.fontMetrics()
+ if text:
+ textBoundingRect = fontMetrics.boundingRect(text)
+ else:
+ textBoundingRect = QtCore.QRect()
+ textWidth = textBoundingRect.width()
+ textHeight = textBoundingRect.height()
+
+ return QtCore.QSize(
+ textWidth + self.ICON_SIZE_DEFAULT,
+ max(textHeight, self.ICON_SIZE_DEFAULT),
+ )
+
+ def show(self, palette):
+ self.palette = palette
+
+ if (
+ self._cachedOuterRadius != self._filing.outerRadius() or
+ self._cachedInnerRadius != self._filing.innerRadius()
+ ):
+ self._cachedOuterRadius = self._filing.outerRadius()
+ self._cachedInnerRadius = self._filing.innerRadius()
+ self._canvas = self._canvas.scaled(self.pieSize())
+
+ if self._mask is None:
+ self._mask = QtGui.QBitmap(self._canvas.size())
+ self._mask.fill(QtCore.Qt.color0)
+ self._generate_mask(self._mask)
+ self._canvas.setMask(self._mask)
+ return self._mask
+
+ def hide(self):
+ self.palette = None
+
+ def paint(self, selectionIndex):
+ painter = QtGui.QPainter(self._canvas)
+ painter.setRenderHint(QtGui.QPainter.Antialiasing, True)
+
+ self.paintPainter(selectionIndex, painter)
+
+ return self._canvas
+
+ def paintPainter(self, selectionIndex, painter):
+ adjustmentRect = painter.viewport().adjusted(0, 0, -1, -1)
+
+ numChildren = len(self._filing)
+ if numChildren == 0:
+ self._paint_center_background(painter, adjustmentRect, selectionIndex)
+ self._paint_center_foreground(painter, adjustmentRect, selectionIndex)
+ return self._canvas
+ else:
+ for i in xrange(len(self._filing)):
+ self._paint_slice_background(painter, adjustmentRect, i, selectionIndex)
+
+ self._paint_center_background(painter, adjustmentRect, selectionIndex)
+ self._paint_center_foreground(painter, adjustmentRect, selectionIndex)
+
+ for i in xrange(len(self._filing)):
+ self._paint_slice_foreground(painter, adjustmentRect, i, selectionIndex)
+
+ def _generate_mask(self, mask):
+ """
+ Specifies on the mask the shape of the pie menu
+ """
+ painter = QtGui.QPainter(mask)
+ painter.setPen(QtCore.Qt.color1)
+ painter.setBrush(QtCore.Qt.color1)
+ if self.DEFAULT_SHAPE == self.SHAPE_SQUARE:
+ painter.drawRect(mask.rect())
+ elif self.DEFAULT_SHAPE == self.SHAPE_CIRCLE:
+ painter.drawEllipse(mask.rect().adjusted(0, 0, -1, -1))
+ else:
+ raise NotImplementedError(self.DEFAULT_SHAPE)
+
+ def _paint_slice_background(self, painter, adjustmentRect, i, selectionIndex):
+ if self.DEFAULT_SHAPE == self.SHAPE_SQUARE:
+ currentWidth = adjustmentRect.width()
+ newWidth = math.sqrt(2) * currentWidth
+ dx = (newWidth - currentWidth) / 2
+ adjustmentRect = adjustmentRect.adjusted(-dx, -dx, dx, dx)
+ elif self.DEFAULT_SHAPE == self.SHAPE_CIRCLE:
+ pass
+ else:
+ raise NotImplementedError(self.DEFAULT_SHAPE)
+
+ if self._backgroundState == self.BACKGROUND_NOFILL:
+ painter.setBrush(QtGui.QBrush(QtCore.Qt.transparent))
+ painter.setPen(self.palette.highlight().color())
+ else:
+ if i == selectionIndex and self._filing[i].isEnabled():
+ painter.setBrush(self.palette.highlight())
+ painter.setPen(self.palette.highlight().color())
+ else:
+ painter.setBrush(self.palette.window())
+ painter.setPen(self.palette.window().color())
+
+ a = self._filing._index_to_angle(i, True)
+ b = self._filing._index_to_angle(i + 1, True)
+ if b < a:
+ b += _TWOPI
+ size = b - a
+ if size < 0:
+ size += _TWOPI
+
+ startAngleInDeg = (a * 360 * 16) / _TWOPI
+ sizeInDeg = (size * 360 * 16) / _TWOPI
+ painter.drawPie(adjustmentRect, int(startAngleInDeg), int(sizeInDeg))
+
+ def _paint_slice_foreground(self, painter, adjustmentRect, i, selectionIndex):
+ child = self._filing[i]
+
+ a = self._filing._index_to_angle(i, True)
+ b = self._filing._index_to_angle(i + 1, True)
+ if b < a:
+ b += _TWOPI
+ middleAngle = (a + b) / 2
+ averageRadius = (self._cachedInnerRadius + self._cachedOuterRadius) / 2
+
+ sliceX = averageRadius * math.cos(middleAngle)
+ sliceY = - averageRadius * math.sin(middleAngle)
+
+ piePos = adjustmentRect.center()
+ pieX = piePos.x()
+ pieY = piePos.y()
+ self._paint_label(
+ painter, child.action(), i == selectionIndex, pieX+sliceX, pieY+sliceY
+ )
+
+ def _paint_label(self, painter, action, isSelected, x, y):
+ text = action.text()
+ fontMetrics = painter.fontMetrics()
+ if text:
+ textBoundingRect = fontMetrics.boundingRect(text)
+ else:
+ textBoundingRect = QtCore.QRect()
+ textWidth = textBoundingRect.width()
+ textHeight = textBoundingRect.height()
+
+ icon = action.icon().pixmap(
+ QtCore.QSize(self.ICON_SIZE_DEFAULT, self.ICON_SIZE_DEFAULT),
+ QtGui.QIcon.Normal,
+ QtGui.QIcon.On,
+ )
+ iconWidth = icon.width()
+ iconHeight = icon.width()
+ averageWidth = (iconWidth + textWidth)/2
+ if not icon.isNull():
+ iconRect = QtCore.QRect(
+ x - averageWidth,
+ y - iconHeight/2,
+ iconWidth,
+ iconHeight,
+ )
+
+ painter.drawPixmap(iconRect, icon)
+
+ if text:
+ if isSelected:
+ if action.isEnabled():
+ pen = self.palette.highlightedText()
+ brush = self.palette.highlight()
+ else:
+ pen = self.palette.mid()
+ brush = self.palette.window()
+ else:
+ if action.isEnabled():
+ pen = self.palette.windowText()
+ else:
+ pen = self.palette.mid()
+ brush = self.palette.window()
+
+ leftX = x - averageWidth + iconWidth
+ topY = y + textHeight/2
+ painter.setPen(pen.color())
+ painter.setBrush(brush)
+ painter.drawText(leftX, topY, text)
+
+ def _paint_center_background(self, painter, adjustmentRect, selectionIndex):
+ if self._backgroundState == self.BACKGROUND_NOFILL:
+ return
+ if len(self._filing) == 0:
+ if self._backgroundState == self.BACKGROUND_NOFILL:
+ painter.setBrush(QtGui.QBrush(QtCore.Qt.transparent))
+ else:
+ if selectionIndex == PieFiling.SELECTION_CENTER and self._filing.center().isEnabled():
+ painter.setBrush(self.palette.highlight())
+ else:
+ painter.setBrush(self.palette.window())
+ painter.setPen(self.palette.mid().color())
+
+ painter.drawRect(adjustmentRect)
+ else:
+ dark = self.palette.mid().color()
+ light = self.palette.light().color()
+ if self._backgroundState == self.BACKGROUND_NOFILL:
+ background = QtGui.QBrush(QtCore.Qt.transparent)
+ else:
+ if selectionIndex == PieFiling.SELECTION_CENTER and self._filing.center().isEnabled():
+ background = self.palette.highlight().color()
+ else:
+ background = self.palette.window().color()
+
+ innerRadius = self._cachedInnerRadius
+ adjustmentCenterPos = adjustmentRect.center()
+ innerRect = QtCore.QRect(
+ adjustmentCenterPos.x() - innerRadius,
+ adjustmentCenterPos.y() - innerRadius,
+ innerRadius * 2 + 1,
+ innerRadius * 2 + 1,
+ )
+
+ painter.setPen(QtCore.Qt.NoPen)
+ painter.setBrush(background)
+ painter.drawPie(innerRect, 0, 360 * 16)
+
+ if self.DEFAULT_SHAPE == self.SHAPE_SQUARE:
+ pass
+ elif self.DEFAULT_SHAPE == self.SHAPE_CIRCLE:
+ painter.setPen(QtGui.QPen(dark, 1))
+ painter.setBrush(QtCore.Qt.NoBrush)
+ painter.drawEllipse(adjustmentRect)
+ else:
+ raise NotImplementedError(self.DEFAULT_SHAPE)
+
+ def _paint_center_foreground(self, painter, adjustmentRect, selectionIndex):
+ centerPos = adjustmentRect.center()
+ pieX = centerPos.x()
+ pieY = centerPos.y()
+
+ x = pieX
+ y = pieY
+
+ self._paint_label(
+ painter,
+ self._filing.center().action(),
+ selectionIndex == PieFiling.SELECTION_CENTER,
+ x, y
+ )
+
+
+class QPieDisplay(QtGui.QWidget):
+
+ def __init__(self, filing, parent = None, flags = QtCore.Qt.Window):
+ QtGui.QWidget.__init__(self, parent, flags)
+ self._filing = filing
+ self._artist = PieArtist(self._filing)
+ self._selectionIndex = PieFiling.SELECTION_NONE
+
+ def popup(self, pos):
+ self._update_selection(pos)
+ self.show()
+
+ def sizeHint(self):
+ return self._artist.pieSize()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def showEvent(self, showEvent):
+ mask = self._artist.show(self.palette())
+ self.setMask(mask)
+
+ QtGui.QWidget.showEvent(self, showEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def hideEvent(self, hideEvent):
+ self._artist.hide()
+ self._selectionIndex = PieFiling.SELECTION_NONE
+ QtGui.QWidget.hideEvent(self, hideEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def paintEvent(self, paintEvent):
+ canvas = self._artist.paint(self._selectionIndex)
+ offset = (self.size() - canvas.size()) / 2
+
+ screen = QtGui.QPainter(self)
+ screen.drawPixmap(QtCore.QPoint(offset.width(), offset.height()), canvas)
+
+ QtGui.QWidget.paintEvent(self, paintEvent)
+
+ def selectAt(self, index):
+ oldIndex = self._selectionIndex
+ self._selectionIndex = index
+ if self.isVisible():
+ self.update()
+
+
+class QPieButton(QtGui.QWidget):
+
+ activated = qt_compat.Signal(int)
+ highlighted = qt_compat.Signal(int)
+ canceled = qt_compat.Signal()
+ aboutToShow = qt_compat.Signal()
+ aboutToHide = qt_compat.Signal()
+
+ BUTTON_RADIUS = 24
+ DELAY = 250
+
+ def __init__(self, buttonSlice, parent = None, buttonSlices = None):
+ # @bug Artifacts on Maemo 5 due to window 3D effects, find way to disable them for just these?
+ # @bug The pie's are being pushed back on screen on Maemo, leading to coordinate issues
+ QtGui.QWidget.__init__(self, parent)
+ self._cachedCenterPosition = self.rect().center()
+
+ self._filing = PieFiling()
+ self._display = QPieDisplay(self._filing, None, QtCore.Qt.SplashScreen)
+ self._selectionIndex = PieFiling.SELECTION_NONE
+
+ self._buttonFiling = PieFiling()
+ self._buttonFiling.set_center(buttonSlice)
+ if buttonSlices is not None:
+ for slice in buttonSlices:
+ self._buttonFiling.insertItem(slice)
+ self._buttonFiling.setOuterRadius(self.BUTTON_RADIUS)
+ self._buttonArtist = PieArtist(self._buttonFiling, PieArtist.BACKGROUND_NOFILL)
+ self._poppedUp = False
+ self._pressed = False
+
+ self._delayPopupTimer = QtCore.QTimer()
+ self._delayPopupTimer.setInterval(self.DELAY)
+ self._delayPopupTimer.setSingleShot(True)
+ self._delayPopupTimer.timeout.connect(self._on_delayed_popup)
+ self._popupLocation = None
+
+ self._mousePosition = None
+ self.setFocusPolicy(QtCore.Qt.StrongFocus)
+ self.setSizePolicy(
+ QtGui.QSizePolicy(
+ QtGui.QSizePolicy.MinimumExpanding,
+ QtGui.QSizePolicy.MinimumExpanding,
+ )
+ )
+
+ def insertItem(self, item, index = -1):
+ self._filing.insertItem(item, index)
+
+ def removeItemAt(self, index):
+ self._filing.removeItemAt(index)
+
+ def set_center(self, item):
+ self._filing.set_center(item)
+
+ def set_button(self, item):
+ self.update()
+
+ def clear(self):
+ self._filing.clear()
+
+ def itemAt(self, index):
+ return self._filing.itemAt(index)
+
+ def indexAt(self, point):
+ return self._filing.indexAt(self._cachedCenterPosition, point)
+
+ def innerRadius(self):
+ return self._filing.innerRadius()
+
+ def setInnerRadius(self, radius):
+ self._filing.setInnerRadius(radius)
+
+ def outerRadius(self):
+ return self._filing.outerRadius()
+
+ def setOuterRadius(self, radius):
+ self._filing.setOuterRadius(radius)
+
+ def buttonRadius(self):
+ return self._buttonFiling.outerRadius()
+
+ def setButtonRadius(self, radius):
+ self._buttonFiling.setOuterRadius(radius)
+ self._buttonFiling.setInnerRadius(radius / 2)
+ self._buttonArtist.show(self.palette())
+
+ def minimumSizeHint(self):
+ return self._buttonArtist.centerSize()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mousePressEvent(self, mouseEvent):
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ self._mousePosition = lastMousePos
+ self._update_selection(self._cachedCenterPosition)
+
+ self.highlighted.emit(self._selectionIndex)
+
+ self._display.selectAt(self._selectionIndex)
+ self._pressed = True
+ self.update()
+ self._popupLocation = mouseEvent.globalPos()
+ self._delayPopupTimer.start()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def _on_delayed_popup(self):
+ assert self._popupLocation is not None, "Widget location abuse"
+ self._popup_child(self._popupLocation)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mouseMoveEvent(self, mouseEvent):
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ if self._mousePosition is None:
+ # Absolute
+ self._update_selection(lastMousePos)
+ else:
+ # Relative
+ self._update_selection(
+ self._cachedCenterPosition + (lastMousePos - self._mousePosition),
+ ignoreOuter = True,
+ )
+
+ if lastSelection != self._selectionIndex:
+ self.highlighted.emit(self._selectionIndex)
+ self._display.selectAt(self._selectionIndex)
+
+ if self._selectionIndex != PieFiling.SELECTION_CENTER and self._delayPopupTimer.isActive():
+ self._on_delayed_popup()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mouseReleaseEvent(self, mouseEvent):
+ self._delayPopupTimer.stop()
+ self._popupLocation = None
+
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ if self._mousePosition is None:
+ # Absolute
+ self._update_selection(lastMousePos)
+ else:
+ # Relative
+ self._update_selection(
+ self._cachedCenterPosition + (lastMousePos - self._mousePosition),
+ ignoreOuter = True,
+ )
+ self._mousePosition = None
+
+ self._activate_at(self._selectionIndex)
+ self._pressed = False
+ self.update()
+ self._hide_child()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def keyPressEvent(self, keyEvent):
+ if keyEvent.key() in [QtCore.Qt.Key_Right, QtCore.Qt.Key_Down, QtCore.Qt.Key_Tab]:
+ self._popup_child(QtGui.QCursor.pos())
+ if self._selectionIndex != len(self._filing) - 1:
+ nextSelection = self._selectionIndex + 1
+ else:
+ nextSelection = 0
+ self._select_at(nextSelection)
+ self._display.selectAt(self._selectionIndex)
+ elif keyEvent.key() in [QtCore.Qt.Key_Left, QtCore.Qt.Key_Up, QtCore.Qt.Key_Backtab]:
+ self._popup_child(QtGui.QCursor.pos())
+ if 0 < self._selectionIndex:
+ nextSelection = self._selectionIndex - 1
+ else:
+ nextSelection = len(self._filing) - 1
+ self._select_at(nextSelection)
+ self._display.selectAt(self._selectionIndex)
+ elif keyEvent.key() in [QtCore.Qt.Key_Space]:
+ self._popup_child(QtGui.QCursor.pos())
+ self._select_at(PieFiling.SELECTION_CENTER)
+ self._display.selectAt(self._selectionIndex)
+ elif keyEvent.key() in [QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter, QtCore.Qt.Key_Space]:
+ self._delayPopupTimer.stop()
+ self._popupLocation = None
+ self._activate_at(self._selectionIndex)
+ self._hide_child()
+ elif keyEvent.key() in [QtCore.Qt.Key_Escape, QtCore.Qt.Key_Backspace]:
+ self._delayPopupTimer.stop()
+ self._popupLocation = None
+ self._activate_at(PieFiling.SELECTION_NONE)
+ self._hide_child()
+ else:
+ QtGui.QWidget.keyPressEvent(self, keyEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def resizeEvent(self, resizeEvent):
+ self.setButtonRadius(min(resizeEvent.size().width(), resizeEvent.size().height()) / 2 - 1)
+ QtGui.QWidget.resizeEvent(self, resizeEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def showEvent(self, showEvent):
+ self._buttonArtist.show(self.palette())
+ self._cachedCenterPosition = self.rect().center()
+
+ QtGui.QWidget.showEvent(self, showEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def hideEvent(self, hideEvent):
+ self._display.hide()
+ self._select_at(PieFiling.SELECTION_NONE)
+ QtGui.QWidget.hideEvent(self, hideEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def paintEvent(self, paintEvent):
+ self.setButtonRadius(min(self.rect().width(), self.rect().height()) / 2 - 1)
+ if self._poppedUp:
+ selectionIndex = PieFiling.SELECTION_CENTER
+ else:
+ selectionIndex = PieFiling.SELECTION_NONE
+
+ screen = QtGui.QStylePainter(self)
+ screen.setRenderHint(QtGui.QPainter.Antialiasing, True)
+ option = QtGui.QStyleOptionButton()
+ option.initFrom(self)
+ option.state = QtGui.QStyle.State_Sunken if self._pressed else QtGui.QStyle.State_Raised
+
+ screen.drawControl(QtGui.QStyle.CE_PushButton, option)
+ self._buttonArtist.paintPainter(selectionIndex, screen)
+
+ QtGui.QWidget.paintEvent(self, paintEvent)
+
+ def __iter__(self):
+ return iter(self._filing)
+
+ def __len__(self):
+ return len(self._filing)
+
+ def _popup_child(self, position):
+ self._poppedUp = True
+ self.aboutToShow.emit()
+
+ self._delayPopupTimer.stop()
+ self._popupLocation = None
+
+ position = position - QtCore.QPoint(self._filing.outerRadius(), self._filing.outerRadius())
+ self._display.move(position)
+ self._display.show()
+
+ self.update()
+
+ def _hide_child(self):
+ self._poppedUp = False
+ self.aboutToHide.emit()
+ self._display.hide()
+ self.update()
+
+ def _select_at(self, index):
+ self._selectionIndex = index
+
+ def _update_selection(self, lastMousePos, ignoreOuter = False):
+ radius = _radius_at(self._cachedCenterPosition, lastMousePos)
+ if radius < self._filing.innerRadius():
+ self._select_at(PieFiling.SELECTION_CENTER)
+ elif radius <= self._filing.outerRadius() or ignoreOuter:
+ self._select_at(self.indexAt(lastMousePos))
+ else:
+ self._select_at(PieFiling.SELECTION_NONE)
+
+ def _activate_at(self, index):
+ if index == PieFiling.SELECTION_NONE:
+ self.canceled.emit()
+ return
+ elif index == PieFiling.SELECTION_CENTER:
+ child = self._filing.center()
+ else:
+ child = self.itemAt(index)
+
+ if child.action().isEnabled():
+ child.action().trigger()
+ self.activated.emit(index)
+ else:
+ self.canceled.emit()
+
+
+class QPieMenu(QtGui.QWidget):
+
+ activated = qt_compat.Signal(int)
+ highlighted = qt_compat.Signal(int)
+ canceled = qt_compat.Signal()
+ aboutToShow = qt_compat.Signal()
+ aboutToHide = qt_compat.Signal()
+
+ def __init__(self, parent = None):
+ QtGui.QWidget.__init__(self, parent)
+ self._cachedCenterPosition = self.rect().center()
+
+ self._filing = PieFiling()
+ self._artist = PieArtist(self._filing)
+ self._selectionIndex = PieFiling.SELECTION_NONE
+
+ self._mousePosition = ()
+ self.setFocusPolicy(QtCore.Qt.StrongFocus)
+
+ def popup(self, pos):
+ self._update_selection(pos)
+ self.show()
+
+ def insertItem(self, item, index = -1):
+ self._filing.insertItem(item, index)
+ self.update()
+
+ def removeItemAt(self, index):
+ self._filing.removeItemAt(index)
+ self.update()
+
+ def set_center(self, item):
+ self._filing.set_center(item)
+ self.update()
+
+ def clear(self):
+ self._filing.clear()
+ self.update()
+
+ def itemAt(self, index):
+ return self._filing.itemAt(index)
+
+ def indexAt(self, point):
+ return self._filing.indexAt(self._cachedCenterPosition, point)
+
+ def innerRadius(self):
+ return self._filing.innerRadius()
+
+ def setInnerRadius(self, radius):
+ self._filing.setInnerRadius(radius)
+ self.update()
+
+ def outerRadius(self):
+ return self._filing.outerRadius()
+
+ def setOuterRadius(self, radius):
+ self._filing.setOuterRadius(radius)
+ self.update()
+
+ def sizeHint(self):
+ return self._artist.pieSize()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mousePressEvent(self, mouseEvent):
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ self._update_selection(lastMousePos)
+ self._mousePosition = lastMousePos
+
+ if lastSelection != self._selectionIndex:
+ self.highlighted.emit(self._selectionIndex)
+ self.update()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mouseMoveEvent(self, mouseEvent):
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ self._update_selection(lastMousePos)
+
+ if lastSelection != self._selectionIndex:
+ self.highlighted.emit(self._selectionIndex)
+ self.update()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def mouseReleaseEvent(self, mouseEvent):
+ lastSelection = self._selectionIndex
+
+ lastMousePos = mouseEvent.pos()
+ self._update_selection(lastMousePos)
+ self._mousePosition = ()
+
+ self._activate_at(self._selectionIndex)
+ self.update()
+
+ @misc_utils.log_exception(_moduleLogger)
+ def keyPressEvent(self, keyEvent):
+ if keyEvent.key() in [QtCore.Qt.Key_Right, QtCore.Qt.Key_Down, QtCore.Qt.Key_Tab]:
+ if self._selectionIndex != len(self._filing) - 1:
+ nextSelection = self._selectionIndex + 1
+ else:
+ nextSelection = 0
+ self._select_at(nextSelection)
+ self.update()
+ elif keyEvent.key() in [QtCore.Qt.Key_Left, QtCore.Qt.Key_Up, QtCore.Qt.Key_Backtab]:
+ if 0 < self._selectionIndex:
+ nextSelection = self._selectionIndex - 1
+ else:
+ nextSelection = len(self._filing) - 1
+ self._select_at(nextSelection)
+ self.update()
+ elif keyEvent.key() in [QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter, QtCore.Qt.Key_Space]:
+ self._activate_at(self._selectionIndex)
+ elif keyEvent.key() in [QtCore.Qt.Key_Escape, QtCore.Qt.Key_Backspace]:
+ self._activate_at(PieFiling.SELECTION_NONE)
+ else:
+ QtGui.QWidget.keyPressEvent(self, keyEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def showEvent(self, showEvent):
+ self.aboutToShow.emit()
+ self._cachedCenterPosition = self.rect().center()
+
+ mask = self._artist.show(self.palette())
+ self.setMask(mask)
+
+ lastMousePos = self.mapFromGlobal(QtGui.QCursor.pos())
+ self._update_selection(lastMousePos)
+
+ QtGui.QWidget.showEvent(self, showEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def hideEvent(self, hideEvent):
+ self._artist.hide()
+ self._selectionIndex = PieFiling.SELECTION_NONE
+ QtGui.QWidget.hideEvent(self, hideEvent)
+
+ @misc_utils.log_exception(_moduleLogger)
+ def paintEvent(self, paintEvent):
+ canvas = self._artist.paint(self._selectionIndex)
+
+ screen = QtGui.QPainter(self)
+ screen.drawPixmap(QtCore.QPoint(0, 0), canvas)
+
+ QtGui.QWidget.paintEvent(self, paintEvent)
+
+ def __iter__(self):
+ return iter(self._filing)
+
+ def __len__(self):
+ return len(self._filing)
+
+ def _select_at(self, index):
+ self._selectionIndex = index
+
+ def _update_selection(self, lastMousePos):
+ radius = _radius_at(self._cachedCenterPosition, lastMousePos)
+ if radius < self._filing.innerRadius():
+ self._selectionIndex = PieFiling.SELECTION_CENTER
+ elif radius <= self._filing.outerRadius():
+ self._select_at(self.indexAt(lastMousePos))
+ else:
+ self._selectionIndex = PieFiling.SELECTION_NONE
+
+ def _activate_at(self, index):
+ if index == PieFiling.SELECTION_NONE:
+ self.canceled.emit()
+ self.aboutToHide.emit()
+ self.hide()
+ return
+ elif index == PieFiling.SELECTION_CENTER:
+ child = self._filing.center()
+ else:
+ child = self.itemAt(index)
+
+ if child.isEnabled():
+ child.action().trigger()
+ self.activated.emit(index)
+ else:
+ self.canceled.emit()
+ self.aboutToHide.emit()
+ self.hide()
+
+
+def init_pies():
+ PieFiling.NULL_CENTER.setEnabled(False)
+
+
+def _print(msg):
+ print msg
+
+
+def _on_about_to_hide(app):
+ app.exit()
+
+
+if __name__ == "__main__":
+ app = QtGui.QApplication([])
+ init_pies()
+
+ if False:
+ pie = QPieMenu()
+ pie.show()
+
+ if False:
+ singleAction = QtGui.QAction(None)
+ singleAction.setText("Boo")
+ singleItem = QActionPieItem(singleAction)
+ spie = QPieMenu()
+ spie.insertItem(singleItem)
+ spie.show()
+
+ if False:
+ oneAction = QtGui.QAction(None)
+ oneAction.setText("Chew")
+ oneItem = QActionPieItem(oneAction)
+ twoAction = QtGui.QAction(None)
+ twoAction.setText("Foo")
+ twoItem = QActionPieItem(twoAction)
+ iconTextAction = QtGui.QAction(None)
+ iconTextAction.setText("Icon")
+ iconTextAction.setIcon(QtGui.QIcon.fromTheme("gtk-close"))
+ iconTextItem = QActionPieItem(iconTextAction)
+ mpie = QPieMenu()
+ mpie.insertItem(oneItem)
+ mpie.insertItem(twoItem)
+ mpie.insertItem(oneItem)
+ mpie.insertItem(iconTextItem)
+ mpie.show()
+
+ if True:
+ oneAction = QtGui.QAction(None)
+ oneAction.setText("Chew")
+ oneAction.triggered.connect(lambda: _print("Chew"))
+ oneItem = QActionPieItem(oneAction)
+ twoAction = QtGui.QAction(None)
+ twoAction.setText("Foo")
+ twoAction.triggered.connect(lambda: _print("Foo"))
+ twoItem = QActionPieItem(twoAction)
+ iconAction = QtGui.QAction(None)
+ iconAction.setIcon(QtGui.QIcon.fromTheme("gtk-open"))
+ iconAction.triggered.connect(lambda: _print("Icon"))
+ iconItem = QActionPieItem(iconAction)
+ iconTextAction = QtGui.QAction(None)
+ iconTextAction.setText("Icon")
+ iconTextAction.setIcon(QtGui.QIcon.fromTheme("gtk-close"))
+ iconTextAction.triggered.connect(lambda: _print("Icon and text"))
+ iconTextItem = QActionPieItem(iconTextAction)
+ mpie = QPieMenu()
+ mpie.set_center(iconItem)
+ mpie.insertItem(oneItem)
+ mpie.insertItem(twoItem)
+ mpie.insertItem(oneItem)
+ mpie.insertItem(iconTextItem)
+ mpie.show()
+ mpie.aboutToHide.connect(lambda: _on_about_to_hide(app))
+ mpie.canceled.connect(lambda: _print("Canceled"))
+
+ if False:
+ oneAction = QtGui.QAction(None)
+ oneAction.setText("Chew")
+ oneAction.triggered.connect(lambda: _print("Chew"))
+ oneItem = QActionPieItem(oneAction)
+ twoAction = QtGui.QAction(None)
+ twoAction.setText("Foo")
+ twoAction.triggered.connect(lambda: _print("Foo"))
+ twoItem = QActionPieItem(twoAction)
+ iconAction = QtGui.QAction(None)
+ iconAction.setIcon(QtGui.QIcon.fromTheme("gtk-open"))
+ iconAction.triggered.connect(lambda: _print("Icon"))
+ iconItem = QActionPieItem(iconAction)
+ iconTextAction = QtGui.QAction(None)
+ iconTextAction.setText("Icon")
+ iconTextAction.setIcon(QtGui.QIcon.fromTheme("gtk-close"))
+ iconTextAction.triggered.connect(lambda: _print("Icon and text"))
+ iconTextItem = QActionPieItem(iconTextAction)
+ pieFiling = PieFiling()
+ pieFiling.set_center(iconItem)
+ pieFiling.insertItem(oneItem)
+ pieFiling.insertItem(twoItem)
+ pieFiling.insertItem(oneItem)
+ pieFiling.insertItem(iconTextItem)
+ mpie = QPieDisplay(pieFiling)
+ mpie.show()
+
+ if False:
+ oneAction = QtGui.QAction(None)
+ oneAction.setText("Chew")
+ oneAction.triggered.connect(lambda: _print("Chew"))
+ oneItem = QActionPieItem(oneAction)
+ twoAction = QtGui.QAction(None)
+ twoAction.setText("Foo")
+ twoAction.triggered.connect(lambda: _print("Foo"))
+ twoItem = QActionPieItem(twoAction)
+ iconAction = QtGui.QAction(None)
+ iconAction.setIcon(QtGui.QIcon.fromTheme("gtk-open"))
+ iconAction.triggered.connect(lambda: _print("Icon"))
+ iconItem = QActionPieItem(iconAction)
+ iconTextAction = QtGui.QAction(None)
+ iconTextAction.setText("Icon")
+ iconTextAction.setIcon(QtGui.QIcon.fromTheme("gtk-close"))
+ iconTextAction.triggered.connect(lambda: _print("Icon and text"))
+ iconTextItem = QActionPieItem(iconTextAction)
+ mpie = QPieButton(iconItem)
+ mpie.set_center(iconItem)
+ mpie.insertItem(oneItem)
+ mpie.insertItem(twoItem)
+ mpie.insertItem(oneItem)
+ mpie.insertItem(iconTextItem)
+ mpie.show()
+ mpie.aboutToHide.connect(lambda: _on_about_to_hide(app))
+ mpie.canceled.connect(lambda: _print("Canceled"))
+
+ app.exec_()
projects / gonvert / blobdiff