--- /dev/null
+#!/usr/bin/env python
+
+
+from __future__ import division
+
+import os
+import warnings
+
+import qt_compat
+QtGui = qt_compat.import_module("QtGui")
+
+import qtpie
+
+
+class PieKeyboard(object):
+
+ SLICE_CENTER = -1
+ SLICE_NORTH = 0
+ SLICE_NORTH_WEST = 1
+ SLICE_WEST = 2
+ SLICE_SOUTH_WEST = 3
+ SLICE_SOUTH = 4
+ SLICE_SOUTH_EAST = 5
+ SLICE_EAST = 6
+ SLICE_NORTH_EAST = 7
+
+ MAX_ANGULAR_SLICES = 8
+
+ SLICE_DIRECTIONS = [
+ SLICE_CENTER,
+ SLICE_NORTH,
+ SLICE_NORTH_WEST,
+ SLICE_WEST,
+ SLICE_SOUTH_WEST,
+ SLICE_SOUTH,
+ SLICE_SOUTH_EAST,
+ SLICE_EAST,
+ SLICE_NORTH_EAST,
+ ]
+
+ SLICE_DIRECTION_NAMES = [
+ "CENTER",
+ "NORTH",
+ "NORTH_WEST",
+ "WEST",
+ "SOUTH_WEST",
+ "SOUTH",
+ "SOUTH_EAST",
+ "EAST",
+ "NORTH_EAST",
+ ]
+
+ def __init__(self):
+ self._layout = QtGui.QGridLayout()
+ self._widget = QtGui.QWidget()
+ self._widget.setLayout(self._layout)
+
+ self.__cells = {}
+
+ @property
+ def toplevel(self):
+ return self._widget
+
+ def add_pie(self, row, column, pieButton):
+ assert len(pieButton) == 8
+ self._layout.addWidget(pieButton, row, column)
+ self.__cells[(row, column)] = pieButton
+
+ def get_pie(self, row, column):
+ return self.__cells[(row, column)]
+
+
+class KeyboardModifier(object):
+
+ def __init__(self, name):
+ self.name = name
+ self.lock = False
+ self.once = False
+
+ @property
+ def isActive(self):
+ return self.lock or self.once
+
+ def on_toggle_lock(self, *args, **kwds):
+ self.lock = not self.lock
+
+ def on_toggle_once(self, *args, **kwds):
+ self.once = not self.once
+
+ def reset_once(self):
+ self.once = False
+
+
+def parse_keyboard_data(text):
+ return eval(text)
+
+
+def _enumerate_pie_slices(pieData, iconPaths):
+ for direction, directionName in zip(
+ PieKeyboard.SLICE_DIRECTIONS, PieKeyboard.SLICE_DIRECTION_NAMES
+ ):
+ if directionName in pieData:
+ sliceData = pieData[directionName]
+
+ action = QtGui.QAction(None)
+ try:
+ action.setText(sliceData["text"])
+ except KeyError:
+ pass
+ try:
+ relativeIconPath = sliceData["path"]
+ except KeyError:
+ pass
+ else:
+ for iconPath in iconPaths:
+ absIconPath = os.path.join(iconPath, relativeIconPath)
+ if os.path.exists(absIconPath):
+ action.setIcon(QtGui.QIcon(absIconPath))
+ break
+ pieItem = qtpie.QActionPieItem(action)
+ actionToken = sliceData["action"]
+ else:
+ pieItem = qtpie.PieFiling.NULL_CENTER
+ actionToken = ""
+ yield direction, pieItem, actionToken
+
+
+def load_keyboard(keyboardName, dataTree, keyboard, keyboardHandler, iconPaths):
+ for (row, column), pieData in dataTree.iteritems():
+ pieItems = list(_enumerate_pie_slices(pieData, iconPaths))
+ assert pieItems[0][0] == PieKeyboard.SLICE_CENTER, pieItems[0]
+ _, center, centerAction = pieItems.pop(0)
+
+ pieButton = qtpie.QPieButton(center)
+ pieButton.set_center(center)
+ keyboardHandler.map_slice_action(center, centerAction)
+ for direction, pieItem, action in pieItems:
+ pieButton.insertItem(pieItem)
+ keyboardHandler.map_slice_action(pieItem, action)
+ keyboard.add_pie(row, column, pieButton)
+
+
+class KeyboardHandler(object):
+
+ def __init__(self, keyhandler):
+ self.__keyhandler = keyhandler
+ self.__commandHandlers = {}
+ self.__modifiers = {}
+ self.__sliceActions = {}
+
+ self.register_modifier("Shift")
+ self.register_modifier("Super")
+ self.register_modifier("Control")
+ self.register_modifier("Alt")
+
+ def register_command_handler(self, command, handler):
+ # @todo Look into hooking these up directly to the pie actions
+ self.__commandHandlers["[%s]" % command] = handler
+
+ def unregister_command_handler(self, command):
+ # @todo Look into hooking these up directly to the pie actions
+ del self.__commandHandlers["[%s]" % command]
+
+ def register_modifier(self, modifierName):
+ mod = KeyboardModifier(modifierName)
+ self.register_command_handler(modifierName, mod.on_toggle_lock)
+ self.__modifiers["<%s>" % modifierName] = mod
+
+ def unregister_modifier(self, modifierName):
+ self.unregister_command_handler(modifierName)
+ del self.__modifiers["<%s>" % modifierName]
+
+ def map_slice_action(self, slice, action):
+ callback = lambda direction: self(direction, action)
+ slice.action().triggered.connect(callback)
+ self.__sliceActions[slice] = (action, callback)
+
+ def __call__(self, direction, action):
+ activeModifiers = [
+ mod.name
+ for mod in self.__modifiers.itervalues()
+ if mod.isActive
+ ]
+
+ needResetOnce = False
+ if action.startswith("[") and action.endswith("]"):
+ commandName = action[1:-1]
+ if action in self.__commandHandlers:
+ self.__commandHandlers[action](commandName, activeModifiers)
+ needResetOnce = True
+ else:
+ warnings.warn("Unknown command: [%s]" % commandName)
+ elif action.startswith("<") and action.endswith(">"):
+ modName = action[1:-1]
+ for mod in self.__modifiers.itervalues():
+ if mod.name == modName:
+ mod.on_toggle_once()
+ break
+ else:
+ warnings.warn("Unknown modifier: <%s>" % modName)
+ else:
+ self.__keyhandler(action, activeModifiers)
+ needResetOnce = True
+
+ if needResetOnce:
+ for mod in self.__modifiers.itervalues():
+ mod.reset_once()
projects / gonvert / blobdiff