Mercurial > fife-parpg

annotate clients/editor/scripts/undomanager.py @ 355:8b125ec749d7

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Started cleaning up the editor source code: * Added license header to all files * Cleaned up run.py
author cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 22 Sep 2009 19:03:53 +0000
parents e893afb4963b
children ad5818097cd6
rev   line source
355
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1 # -*- coding: utf-8 -*-
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2
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3 # ####################################################################
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4 # Copyright (C) 2005-2009 by the FIFE team
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5 # http://www.fifengine.de
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6 # This file is part of FIFE.
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7 #
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8 # FIFE is free software; you can redistribute it and/or
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9 # modify it under the terms of the GNU Lesser General Public
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10 # License as published by the Free Software Foundation; either
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11 # version 2.1 of the License, or (at your option) any later version.
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12 #
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13 # This library is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # Lesser General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU Lesser General Public
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19 # License along with this library; if not, write to the
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20 # Free Software Foundation, Inc.,
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21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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22 # ####################################################################
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23
255
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24 from events.signal import Signal
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25 import collections
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26 import pdb
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27
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28 actionAdded = Signal(providing_args=["action"])
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29 preUndo = Signal()
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30 postUndo = Signal()
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31 preRedo = Signal()
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32 postRedo = Signal()
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33 cleared = Signal()
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34 modeChanged = Signal(providing_args=["mode"])
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35 changed = Signal()
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36
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37 class UndoManager:
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38 """
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39 The undo manager provides advanced undo functionality.
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40
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41 Add actions with addAction. If you want to add a lot of actions and
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42 group them, use startGroup and endGroup. When you undo a group, you will
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43 undo all the actions within it.
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44
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45 If branched mode is enabled, you will not overwrite the redostack when
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46 adding an action. Instead, a new branch will be created with the new actions.
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47 To navigate in branches, you can use nextBranch and redoBranch.
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48
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49 Example
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50 =======
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51 # Init undomanager
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52 undomanager = UndoManager()
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53
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54 def doSomething():
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55 # Adds an action to the undomanager
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56 undocallback = lambda: doSomethingElse()
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57 redocallback = lambda: doSomething()
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58 description = "Something was done somewhere in the program."
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59 action = UndoObject(undocallback, redocallback, "Did something", description, "icon.png")
255
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60 undomanager.addAction(action)
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61
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62 def doLotOfActions():
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63 # Starts an actiongroup and adds three actions
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64 undomanager.startGroup("Did lot of actions", "Lot of actions was done somewhere in the program")
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65 doSomething()
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66 doSomething()
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67 doSomething()
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68 undomanager.endGroup()
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69
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70 # This will create an actiongroup with three actions, and undo it
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71 doLotOfActions()
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72 undomanager.undo()
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73 """
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74
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75 def __init__(self, branchedMode = True):
255
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76 self._groups = []
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77 self._branched_mode = branchedMode
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78
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79 def warn(msg):
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80 print "Warning: ",msg
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81 self.first_item = UndoStackItem(UndoObject(None, None))
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82 self.first_item.object.name = "First item"
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83 self.first_item.object.description = "First item in stack. Placeholder"
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84 self.first_item.object.undoCallback = lambda: warn("Tried to undo first item")
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85 self.first_item.object.redoCallback = lambda: warn("Tried to redo first item")
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86
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87 self.current_item = self.first_item
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88
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89 def startGroup(self, name="", description="", icon=""):
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90 """
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91 Starts an undogroup. Subsequent items will be added to the group
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92 until endGroup is called. Undogroups can be nested.
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93
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94 name, description and icon are information that can be used by
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95 scripts which analyze the undostack.
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96 """
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97 undogroup = UndoGroup(name, description, icon)
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98 self._groups.append(undogroup)
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99 return undogroup
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100
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101 def endGroup(self):
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102 """
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103 Ends the undogroup.
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104 """
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105 if len(self._groups) <= 0:
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106 print "Warning: UndoManager: No groups to end!"
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107 return
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108
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109 group = self._groups.pop()
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110 self.addAction(group)
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111
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112 def addAction(self, action):
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113 """
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114 Adds an action to the stack.
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115
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116 If the redostack is not empty and branchmode is enabed,
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117 a new branch will be created. If branchmod is disabled,
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118 the redo branch will be cleared.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
119 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
120
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
121 if len(self._groups) > 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
122 self._groups[len(self._groups)-1].addObject(action)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
123 else:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
124 stackitem = UndoStackItem(action)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
125
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
126 stackitem.previous = self.current_item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
127 if self._branched_mode:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
128 stackitem.previous.addBranch(stackitem)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
129 else:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
130 stackitem.previous.next = stackitem
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
131
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
132 self.current_item = stackitem
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
133
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
134 actionAdded.send(sender=self, action=action)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
135 changed.send(sender=self)
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 def clear(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
138 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
139 Clears the undostack.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
140 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
141 self._groups = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
142 self.first_item.clearBranches()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
143 self.current_item = self.first_item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
144
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
145 cleared.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
146 changed.send(sender=self)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
147
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
148 # Linear undo
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
149 def undo(self, amount=1):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
150 """ Undo [amount] items """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
151 if amount <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
152 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
153
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
154 preUndo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
155 for i in range(amount):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
156 if self.current_item == self.first_item:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
157 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
158 break
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
159
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
160 self.current_item.object.undo()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
161 self.current_item = self.current_item.previous
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
162
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
163 postUndo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
164 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
165
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
166
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
167 def redo(self, amount=1):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
168 """ Redo [amount] items. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
169 if amount <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
170 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
171
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
172 preRedo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
173 for i in range(amount):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
174 if self.current_item.next is None:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
175 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
176 break
51cc05d862f2 Merged editor_rewrite branch to trunk.
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 self.current_item = self.current_item.next
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
179 self.current_item.object.redo()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
180
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
181 postRedo.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
182 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
183
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
184 def getBranchMode(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
185 """ Returns true if branch mode is enabled """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186 return self._branched_mode
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
187
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
188 def setBranchMode(self, enable):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
189 """ Enable or disable branch mode """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190 self._branched_mode = enable
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
191 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
192
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
193 def getBranches(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
194 """ Returns branches from current stack item. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
195 return self.current_item.getBranches()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196 def nextBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 """ Switch to next branch in current item """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198 self.current_item.nextBranch()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
199 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
201 def previousBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
202 """ Switch previous branch in current item """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
203 self.current_item.previousBranch()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
204 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
205
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
206 class UndoObject:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
207 """ 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
208 as well as representation of it.
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
209
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
210 ATTRIBUTES
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211 ==========
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
212 - 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
213 - description: Description of this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
214 - icon: Icon used to represent this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
215 - redoCallback: Function used to redo this item
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
216 - undoCallback: Function used to undo
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
217
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218 """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
219 def __init__(self, undoCallback, redoCallback, name="", description="", icon=""):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
220 self.name = name
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
221 self.redoCallback = redoCallback
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
222 self.undoCallback = undoCallback
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
223 self.description = description
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
224 self.icon = icon
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
225
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
226 self.undone = False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
227
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
228 def undo(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
229 """ Undoes the action. Do not use directly! """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
230 if self.undone is True:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
231 print "Tried to undo already undone action!"
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
232 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
233
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
234 self.undone = True
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
235 self.undoCallback()
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 redo(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
238 """ Redoes the action. Do not use directly! """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
239 if self.undone is False:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
240 print "Tried to redo already redone action!"
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
241 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
242
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
243 self.undone = False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
244 self.redoCallback()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
245
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
246 class UndoGroup:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
247 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
248 Contains a list of actions. Used to group actions together.
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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 Use UndoManager.startGroup and UndoManager.endGroup.
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
251
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
252 """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
253 def __init__(self, name="", description="", icon=""):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
254 self.name = name
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
255 self.description = description
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
256 self.icon = icon
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
257
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
258 self.undoobjects = []
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
259
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
260 def addObject(self, object):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
261 """ Adds an action to the list """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
262 self.undoobjects.append(object)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
263
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
264 def getObjects(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
265 """ Returns a list of the actions contained """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
266 return self.undoobjects
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
267
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
268 def undo(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
269 """ Undoes all actions. """
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
270 for action in reversed(self.undoobjects):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
271 action.undo()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
272
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
273 def redo(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
274 """ Redoes all actions. """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
275 for action in self.undoobjects:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
276 action.redo()
51cc05d862f2 Merged editor_rewrite branch to trunk.
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 class UndoStackItem:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
279 """ Represents an action or actiongroup in the undostack. Do not use directly! """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
280 def __init__(self, object):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
281 self._branches = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
282 self._currentbranch = -1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
283
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
284 self.parent = None
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
285 self.object = object
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
286 self.previous = None
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
287 self.next = None
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
288
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
289 def getBranches(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
290 """ Returns a list of the branches """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
291 return self._branches;
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 def addBranch(self, item):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
294 """ 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
295 self._branches.append(item)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
296
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
297 self._currentbranch += 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
298 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
299 self.next.parent = self
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
300
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
301 def nextBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
302 """ Sets this item to point to next branch """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
303 if len(self._branches) <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
304 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
305 self._currentbranch += 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
306 if self._currentbranch >= len(self._branches):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
307 self._currentbranch = 0
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
308 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
309 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
310
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
311 def previousBranch(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
312 """ Sets this item to point to previous branch """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
313 if len(self._branches) <= 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
314 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
315
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
316 self._currentbranch -= 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
317 if self._currentbranch < 0:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
318 self._currentbranch = len(self._branches)-1
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
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
322 def setBranchIndex(self, index):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
323 """ Set this item to point to branches[index] """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
324 if index < 0 or index >= len(self._branches):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
325 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
326 self._currentbranch = index
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
327 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
328 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
329
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
330 def clearBranches(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
331 """ Removes all branches """
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
332 self._branches = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
333 self._currentbranch = -1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
334 self._next = None
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
335 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
336
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
337 def setBranch(self, branch):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
338 """ 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
339 for b in range(len(self._branches)):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
340 if self._branches[b] == branch:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
341 self._currentbranch = b
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
342 self.next = self._branches[self._currentbranch]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
343 changed.send(sender=self)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
344 return True
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
345 else:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
346 print "Didn't find branch!"
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
347 return False
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
348