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path: root/Master/texmf-dist/asymptote/GUI/xasyActions.py
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#!/usr/bin/env python
###########################################################################
#
# xasyActions implements the possible actions and their inverses
# for the undo/redo stack in xasy
#
# Author: Orest Shardt
# Created: July 23, 2007
#
###########################################################################
import math
import sys
import UndoRedoStack
import xasy2asy
if sys.version_info >= (3, 0):
  from tkinter import *
else:
  from Tkinter import *

class translationAction(UndoRedoStack.action):
  def __init__(self,owner,itemList,indexList,translation):
    self.translation = translation
    self.owner = owner
    self.itemList = itemList
    self.indexList = indexList
    UndoRedoStack.action.__init__(self,self.transF,self.unTransF)

  def transF(self):
    mag = self.owner.magnification
    for i in range(len(self.itemList)):
      for index in self.indexList[i]:
        self.owner.translateSomething(-1,(self.translation[0]/mag,self.translation[1]/mag),self.itemList[i],index)
        if index==None:
          index = 0
        try:
          self.owner.mainCanvas.move(self.itemList[i].imageList[index].IDTag,self.translation[0]*mag,-self.translation[1]*mag)
        except:
          self.owner.mainCanvas.move(self.itemList[i].IDTag,self.translation[0]*mag,-self.translation[1]*mag)
    self.owner.updateSelection()
    self.owner.updateCanvasSize()

  def unTransF(self):
    mag = self.owner.magnification
    for i in range(len(self.itemList)):
      for index in self.indexList[i]:
        self.owner.translateSomething(-1,(-self.translation[0]/mag,-self.translation[1]/mag),self.itemList[i],index)
        try:
          self.owner.mainCanvas.move(self.itemList[i].imageList[index].IDTag,-self.translation[0]*mag,self.translation[1]*mag)
        except:
          self.owner.mainCanvas.move(self.itemList[i].IDTag,-self.translation[0]*mag,self.translation[1]*mag)
    self.owner.updateSelection()
    self.owner.updateCanvasSize()

  def __str__(self):
    return "Translation of "+str(self.itemList)+str(self.indexList)+" by "+str(self.translation)

class rotationAction(UndoRedoStack.action):
  def __init__(self,owner,itemList,indexList,angle,origin):
    self.owner = owner
    self.itemList = itemList
    self.indexList = indexList
    self.angle = angle
    self.origin = origin
    UndoRedoStack.action.__init__(self,self.rotF,self.unRotF)

  def rotF(self):
    for i in range(len(self.itemList)):
      for index in self.indexList[i]:
        self.owner.rotateSomething(-1,self.angle,self.origin,self.itemList[i],index)
    for item in self.itemList:
      item.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
      self.owner.bindItemEvents(item)
    self.owner.updateSelection()
    self.owner.updateCanvasSize()

  def unRotF(self):
    for i in range(len(self.itemList)):
      for index in self.indexList[i]:
        self.owner.rotateSomething(-1,-self.angle,self.origin,self.itemList[i],index)
    for item in self.itemList:
      item.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
      self.owner.bindItemEvents(item)
    self.owner.updateSelection()
    self.owner.updateCanvasSize()

  def __str__(self):
    return "Rotation of "+str(self.itemList)+str(self.indexList)+" by "+"%.3f"%(self.angle*180.0/math.pi)+" about "+str(self.origin)

class addLabelAction(UndoRedoStack.action):
  def __init__(self,owner,label):
    self.owner = owner
    self.label = label
    UndoRedoStack.action.__init__(self,self.addF,self.unAddF)

  def addF(self):
    self.owner.addItemToFile(self.label)
    self.label.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.label)

  def unAddF(self):
    self.label.removeFromCanvas()
    del self.owner.fileItems[-1]
    self.owner.propList.delete(0)
    self.owner.clearSelection()

  def __str__(self):
    return "Addition of a label"

class deleteLabelAction(UndoRedoStack.action):
  def __init__(self,owner,label,index):
    self.owner = owner
    self.label = label
    self.index = index
    UndoRedoStack.action.__init__(self,self.delF,self.unDelF)

  def delF(self):
    self.owner.fileItems[self.index].removeFromCanvas()
    self.owner.propList.delete(len(self.owner.fileItems)-self.index-1)
    del self.owner.fileItems[self.index]

  def unDelF(self):
    self.owner.fileItems.insert(self.index,self.label)
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.propList.insert(len(self.owner.fileItems)-self.index-1,self.owner.describeItem(self.label))
    self.owner.bindItemEvents(self.label)

  def __str__(self):
    return "Deletion of a label"

class editLabelTextAction(UndoRedoStack.action):
  def __init__(self,owner,label,newText,oldText):
    self.owner = owner
    self.label = label
    self.newText = newText
    self.oldText = oldText
    UndoRedoStack.action.__init__(self,self.modT,self.unModT)

  def modT(self):
    self.label.label.setText(self.newText)
    self.label.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.label)

  def unModT(self):
    self.label.label.setText(self.oldText)
    self.label.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.label)

  def __str__(self):
    return "Editing a label's text"

class editLabelPenAction(UndoRedoStack.action):
  def __init__(self,owner,oldPen,newPen,index):
    self.owner = owner
    self.newPen = newPen
    self.oldPen = oldPen
    self.index = index
    UndoRedoStack.action.__init__(self,self.editF,self.unEditF)

  def editF(self):
    self.owner.fileItems[self.index].removeFromCanvas()
    self.owner.fileItems[self.index].label.pen = self.newPen
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.owner.fileItems[self.index])

  def unEditF(self):
    self.owner.fileItems[self.index].removeFromCanvas()
    self.owner.fileItems[self.index].label.pen = self.oldPen
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.owner.fileItems[self.index])

  def __str__(self):
    return "Changing a label's pen"

class addScriptAction(UndoRedoStack.action):
  def __init__(self,owner,script):
    self.owner = owner
    self.script = script
    UndoRedoStack.action.__init__(self,self.addF,self.unAddF)

  def addF(self):
    self.owner.addItemToFile(self.script)
    self.script.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.script)

  def unAddF(self):
    self.script.removeFromCanvas()
    del self.owner.fileItems[-1]
    self.owner.propList.delete(0)
    self.owner.clearSelection()

  def __str__(self):
    return "Addition of a script"

class deleteScriptAction(UndoRedoStack.action):
  def __init__(self,owner,script,index):
    self.owner = owner
    self.script = script
    self.index = index
    UndoRedoStack.action.__init__(self,self.delF,self.unDelF)

  def delF(self):
    self.owner.fileItems[self.index].removeFromCanvas()
    self.owner.propList.delete(len(self.owner.fileItems)-self.index-1)
    del self.owner.fileItems[self.index]

  def unDelF(self):
    self.owner.fileItems.insert(self.index,self.script)
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.propList.insert(len(self.owner.fileItems)-self.index-1,self.owner.describeItem(self.script))
    self.owner.bindItemEvents(self.script)
  
  def __str__(self):
    return "Deletion of a script"

class deleteScriptItemAction(UndoRedoStack.action):
  def __init__(self,owner,script,indices,oldTransforms):
    self.owner = owner
    self.script = script
    self.indices = indices[:]
    UndoRedoStack.action.__init__(self,self.delI,self.unDelI)
  def delI(self):
    for index in self.indices:
      self.script.transform[index].deleted = True
      self.owner.mainCanvas.delete(self.script.imageList[index].IDTag)

  def unDelI(self):
    for i in range(len(self.indices)):
      index = self.indices[i]
      self.script.transform[index].deleted = False
      bbox = self.script.imageList[index].originalImage.bbox
      self.script.imageList[index].IDTag = self.owner.mainCanvas.create_image(bbox[0],-bbox[3],anchor=NW,tags=("image"),image=self.script.imageList[index].itk)
      self.owner.bindEvents(self.script.imageList[index].IDTag)
    self.owner.resetStacking()

  def __str__(self):
    return "Deletion of item "+str(self.indices)+" in "+str(self.script)

class editScriptAction(UndoRedoStack.action):
  def __init__(self,owner,script,newText,oldText):
    self.owner = owner
    self.script = script
    self.newText = newText
    self.oldText = oldText
    UndoRedoStack.action.__init__(self,self.modS,self.unModS)

  def modS(self):
    self.script.setScript(self.newText)
    self.script.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.script)

  def unModS(self):
    self.script.setScript(self.oldText)
    self.script.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)
    self.owner.bindItemEvents(self.script)

  def __str__(self):
    return "Modification of a script"

class clearItemTransformsAction(UndoRedoStack.action):
  def __init__(self,owner,item,oldTransforms):
    self.owner = owner
    self.item = item
    self.oldTransforms = oldTransforms
    UndoRedoStack.action.__init__(self,self.clearF,self.unClearF)

  def clearF(self):
    for i in range(len(self.oldTransforms)):
      self.item.transform[i] = xasy2asy.identity()
    self.item.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)

  def unClearF(self):
    for i in range(len(self.oldTransforms)):
      self.item.transform[i] = self.oldTransforms[i]
    self.item.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification)

  def __str__(self):
    return "Clear the transforms of "+str(self.item)+" from "+str(self.oldTransforms)

class itemRaiseAction(UndoRedoStack.action):
  def __init__(self,owner,items,oldPositions):
    self.owner = owner
    self.items = items[:]
    self.oldPositions = oldPositions[:]
    UndoRedoStack.action.__init__(self,self.raiseI,self.unRaiseI)

  def raiseI(self):
    for item in self.items:
      self.owner.raiseSomething(item)

  def unRaiseI(self):
    length = len(self.owner.fileItems)
    indices = self.oldPositions[:]
    indices = [length-i-1 for i in indices]
    indices.reverse()
    for index in indices:
      for i in range(index):
        self.owner.raiseSomething(self.owner.fileItems[length-index-1])

  def __str__(self):
    return "Raise items "+str(self.items)+" from positions "+str(self.oldPositions)

class itemLowerAction(UndoRedoStack.action):
  def __init__(self,owner,items,oldPositions):
    self.owner = owner
    self.items = items[:]
    self.oldPositions = oldPositions[:]
    UndoRedoStack.action.__init__(self,self.lowerI,self.unLowerI)

  def lowerI(self):
    for item in self.items:
      self.owner.lowerSomething(item)

  def unLowerI(self):
    indices = self.oldPositions[:]
    indices.reverse()
    for index in indices:
      for i in range(index):
        self.owner.lowerSomething(self.owner.fileItems[index])

  def __str__(self):
    return "Lower items "+str(self.items)+" from positions "+str(self.oldPositions)

class addDrawnItemAction(UndoRedoStack.action):
  def __init__(self,owner,item):
    self.owner = owner
    self.item = item
    UndoRedoStack.action.__init__(self,self.drawF,self.unDrawF)

  def drawF(self):
    self.owner.addItemToFile(self.item)
    self.item.drawOnCanvas(self.owner.mainCanvas,self.owner.magnification,forceAddition=True)
    self.owner.bindItemEvents(self.item)

  def unDrawF(self):
    self.item.removeFromCanvas(self.owner.mainCanvas)
    del self.owner.fileItems[-1]
    self.owner.propList.delete(0)
    self.owner.clearSelection()

  def __str__(self):
    return "Drawing of an item"

class deleteDrawnItemAction(UndoRedoStack.action):
  def __init__(self,owner,item,index):
    self.owner = owner
    self.item = item
    self.index = index
    UndoRedoStack.action.__init__(self,self.delF,self.unDelF)

  def delF(self):
    self.owner.fileItems[self.index].removeFromCanvas(self.owner.mainCanvas)
    self.owner.propList.delete(len(self.owner.fileItems)-self.index-1)
    del self.owner.fileItems[self.index]

  def unDelF(self):
    self.owner.fileItems.insert(self.index,self.item)
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification,forceAddition=True)
    self.owner.propList.insert(len(self.owner.fileItems)-self.index-1,self.owner.describeItem(self.item))
    self.owner.bindItemEvents(self.item)

  def __str__(self):
    return "Deletion of a drawn item"

class editDrawnItemAction(UndoRedoStack.action):
  def __init__(self,owner,oldItem,newItem,index):
    self.owner = owner
    self.oldItem = oldItem
    self.newItem = newItem
    self.index = index
    UndoRedoStack.action.__init__(self,self.editF,self.unEditF)

  def editF(self):
    self.owner.fileItems[self.index].removeFromCanvas(self.owner.mainCanvas)
    self.owner.fileItems[self.index].path = self.newItem.path
    self.owner.fileItems[self.index].pen = self.newItem.pen
    self.owner.fileItems[self.index].transform = self.newItem.transform
    self.owner.fileItems[self.index].IDTag = self.newItem.IDTag
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification,forceAddition=True)
    self.owner.bindItemEvents(self.owner.fileItems[self.index])

  def unEditF(self):
    self.owner.fileItems[self.index].removeFromCanvas(self.owner.mainCanvas)
    self.owner.fileItems[self.index].path = self.oldItem.path
    self.owner.fileItems[self.index].pen = self.oldItem.pen
    self.owner.fileItems[self.index].transform = self.oldItem.transform
    self.owner.fileItems[self.index].IDTag = self.oldItem.IDTag
    self.owner.fileItems[self.index].drawOnCanvas(self.owner.mainCanvas,self.owner.magnification,forceAddition=True)
    self.owner.bindItemEvents(self.owner.fileItems[self.index])

  def __str__(self):
    return "Modification of a drawn item"