Mercurial > fife-parpg

annotate clients/editor/scripts/undomanager.py @ 319:62ec3b530cc6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* Improved layertool: Ability to add, remove and edit layers * Removed an unused variable from XMLMapLoader * Happy birthday Barra! =D
author cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 16 Aug 2009 20:29:12 +0000
parents e893afb4963b
children 8b125ec749d7
rev   line source
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 from events.signal import Signal
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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2 import collections
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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3 import pdb
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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4
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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5 actionAdded = Signal(providing_args=["action"])
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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6 preUndo = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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7 postUndo = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
8 preRedo = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
9 postRedo = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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10 cleared = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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11 modeChanged = Signal(providing_args=["mode"])
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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12 changed = Signal()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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13
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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14 class UndoManager:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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15 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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16 The undo manager provides advanced undo functionality.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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17
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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18 Add actions with addAction. If you want to add a lot of actions and
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
19 group them, use startGroup and endGroup. When you undo a group, you will
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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20 undo all the actions within it.
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21
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22 If branched mode is enabled, you will not overwrite the redostack when
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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23 adding an action. Instead, a new branch will be created with the new actions.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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24 To navigate in branches, you can use nextBranch and redoBranch.
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25
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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26 Example
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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27 =======
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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28 # Init undomanager
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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29 undomanager = UndoManager()
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30
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31 def doSomething():
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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32 # Adds an action to the undomanager
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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33 undocallback = lambda: doSomethingElse()
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34 redocallback = lambda: doSomething()
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35 description = "Something was done somewhere in the program."
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36 action = UndoObject(undocallback, redocallback, "Did something", description, "icon.png")
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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37 undomanager.addAction(action)
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38
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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39 def doLotOfActions():
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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40 # Starts an actiongroup and adds three actions
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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41 undomanager.startGroup("Did lot of actions", "Lot of actions was done somewhere in the program")
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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42 doSomething()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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43 doSomething()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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44 doSomething()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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45 undomanager.endGroup()
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46
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47 # This will create an actiongroup with three actions, and undo it
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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48 doLotOfActions()
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49 undomanager.undo()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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50 """
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51
256
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52 def __init__(self, branchedMode = True):
255
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53 self._groups = []
256
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54 self._branched_mode = branchedMode
255
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55
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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56 def warn(msg):
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57 print "Warning: ",msg
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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58 self.first_item = UndoStackItem(UndoObject(None, None))
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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59 self.first_item.object.name = "First item"
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60 self.first_item.object.description = "First item in stack. Placeholder"
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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61 self.first_item.object.undoCallback = lambda: warn("Tried to undo first item")
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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62 self.first_item.object.redoCallback = lambda: warn("Tried to redo first item")
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63
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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64 self.current_item = self.first_item
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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65
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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66 def startGroup(self, name="", description="", icon=""):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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67 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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68 Starts an undogroup. Subsequent items will be added to the group
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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69 until endGroup is called. Undogroups can be nested.
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70
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71 name, description and icon are information that can be used by
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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72 scripts which analyze the undostack.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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73 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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74 undogroup = UndoGroup(name, description, icon)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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75 self._groups.append(undogroup)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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76 return undogroup
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77
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78 def endGroup(self):
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79 """
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80 Ends the undogroup.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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81 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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82 if len(self._groups) <= 0:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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83 print "Warning: UndoManager: No groups to end!"
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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84 return
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85
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86 group = self._groups.pop()
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87 self.addAction(group)
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88
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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89 def addAction(self, action):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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90 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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91 Adds an action to the stack.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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92
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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93 If the redostack is not empty and branchmode is enabed,
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94 a new branch will be created. If branchmod is disabled,
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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95 the redo branch will be cleared.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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96 """
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97
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98 if len(self._groups) > 0:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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99 self._groups[len(self._groups)-1].addObject(action)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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100 else:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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101 stackitem = UndoStackItem(action)
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102
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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103 stackitem.previous = self.current_item
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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104 if self._branched_mode:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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105 stackitem.previous.addBranch(stackitem)
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106 else:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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107 stackitem.previous.next = stackitem
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108
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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109 self.current_item = stackitem
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110
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111 actionAdded.send(sender=self, action=action)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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112 changed.send(sender=self)
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113
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114 def clear(self):
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115 """
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116 Clears the undostack.
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117 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118 self._groups = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
119 self.first_item.clearBranches()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
120 self.current_item = self.first_item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
121
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
122 cleared.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
123 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
124
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
125 # Linear undo
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
126 def undo(self, amount=1):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
127 """ Undo [amount] items """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
128 if amount <= 0:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
129 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
130
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
131 preUndo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
132 for i in range(amount):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
133 if self.current_item == self.first_item:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
134 print "Warning: UndoManager: Tried to undo non-existing action."
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
135 break
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
136
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
137 self.current_item.object.undo()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
138 self.current_item = self.current_item.previous
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
139
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
140 postUndo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
141 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
142
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
143
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
144 def redo(self, amount=1):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
145 """ Redo [amount] items. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
146 if amount <= 0:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
147 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
148
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
149 preRedo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
150 for i in range(amount):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
151 if self.current_item.next is None:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
152 print "Warning: UndoManager: Tried to redo non-existing action."
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
153 break
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
154
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
155 self.current_item = self.current_item.next
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
156 self.current_item.object.redo()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
157
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
158 postRedo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
159 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
160
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
161 def getBranchMode(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
162 """ Returns true if branch mode is enabled """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
163 return self._branched_mode
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
164
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
165 def setBranchMode(self, enable):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
166 """ Enable or disable branch mode """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
167 self._branched_mode = enable
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
168 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
169
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
170 def getBranches(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
171 """ Returns branches from current stack item. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
172 return self.current_item.getBranches()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
173 def nextBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
174 """ Switch to next branch in current item """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
175 self.current_item.nextBranch()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
176 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
177
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
178 def previousBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
179 """ Switch previous branch in current item """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
180 self.current_item.previousBranch()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
181 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
182
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
183 class UndoObject:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
184 """ UndoObject contains all the information that is needed to undo or redo an action,
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
185 as well as representation of it.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
187 ATTRIBUTES
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
188 ==========
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
189 - name: Name used by scripts analyzing the undostack to represent this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190 - description: Description of this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
191 - icon: Icon used to represent this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
192 - redoCallback: Function used to redo this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
193 - undoCallback: Function used to undo
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
194
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
195 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196 def __init__(self, undoCallback, redoCallback, name="", description="", icon=""):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 self.name = name
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198 self.redoCallback = redoCallback
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
199 self.undoCallback = undoCallback
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200 self.description = description
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
201 self.icon = icon
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
202
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
203 self.undone = False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
204
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
205 def undo(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
206 """ Undoes the action. Do not use directly! """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
207 if self.undone is True:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
208 print "Tried to undo already undone action!"
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
209 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
210
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211 self.undone = True
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
212 self.undoCallback()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
213
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
214 def redo(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
215 """ Redoes the action. Do not use directly! """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
216 if self.undone is False:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
217 print "Tried to redo already redone action!"
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
219
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
220 self.undone = False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
221 self.redoCallback()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
222
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
223 class UndoGroup:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
224 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
225 Contains a list of actions. Used to group actions together.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
226
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
227 Use UndoManager.startGroup and UndoManager.endGroup.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
228
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
229 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
230 def __init__(self, name="", description="", icon=""):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
231 self.name = name
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
232 self.description = description
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
233 self.icon = icon
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
234
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
235 self.undoobjects = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
236
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
237 def addObject(self, object):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
238 """ Adds an action to the list """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
239 self.undoobjects.append(object)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
240
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
241 def getObjects(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
242 """ Returns a list of the actions contained """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
243 return self.undoobjects
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
244
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
245 def undo(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
246 """ Undoes all actions. """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
247 for action in reversed(self.undoobjects):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
248 action.undo()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
249
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
250 def redo(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
251 """ Redoes all actions. """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
252 for action in self.undoobjects:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
253 action.redo()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
254
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
255 class UndoStackItem:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
256 """ Represents an action or actiongroup in the undostack. Do not use directly! """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
257 def __init__(self, object):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
258 self._branches = []
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
259 self._currentbranch = -1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
260
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
261 self.parent = None
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
262 self.object = object
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
263 self.previous = None
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
264 self.next = None
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
265
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
266 def getBranches(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
267 """ Returns a list of the branches """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
268 return self._branches;
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
269
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
270 def addBranch(self, item):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
271 """ Adds a branch to the list and sets this item to point to that branch """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
272 self._branches.append(item)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
273
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
274 self._currentbranch += 1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
275 self.next = self._branches[self._currentbranch]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
276 self.next.parent = self
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
277
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
278 def nextBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
279 """ Sets this item to point to next branch """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
280 if len(self._branches) <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
281 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
282 self._currentbranch += 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
283 if self._currentbranch >= len(self._branches):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
284 self._currentbranch = 0
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
285 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
286 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
287
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
288 def previousBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
289 """ Sets this item to point to previous branch """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
290 if len(self._branches) <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
291 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
292
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
293 self._currentbranch -= 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
294 if self._currentbranch < 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
295 self._currentbranch = len(self._branches)-1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
296 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
297 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
298
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
299 def setBranchIndex(self, index):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
300 """ Set this item to point to branches[index] """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
301 if index < 0 or index >= len(self._branches):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
302 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
303 self._currentbranch = index
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
304 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
305 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
306
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
307 def clearBranches(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
308 """ Removes all branches """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
309 self._branches = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
310 self._currentbranch = -1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
311 self._next = None
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
312 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
313
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
314 def setBranch(self, branch):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
315 """ Set this item to point to branch. Returns True on success. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
316 for b in range(len(self._branches)):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
317 if self._branches[b] == branch:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
318 self._currentbranch = b
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
319 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
320 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
321 return True
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
322 else:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
323 print "Didn't find branch!"
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
324 return False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
325