用Qt编写Maya插件

先贴个代码，待会解释。

##    Renaming Tool by Clement Chaudat - 2014 v1.1.0##    CONSTANTS IN TEXTFIELDS#    Multiple constants with right-click on textField:#        - OldName: good for prefix/suffix#        - ObjectType#        - ParentName##    INCREMENT: "###" or "%3d"#    Right-click on textField then "Set Start/Step" for#    start number and step value for indent.##    RENAME USING REGEXP:#    example :   "end$" will replace "end" at the end of the name#                "^start" will replace "start" at the beginning of the name#import reimport functoolsimport maya.cmds as cmdsfrom maya import OpenMayauiFile = """<?xml version="1.0" encoding="UTF-8"?><ui version="4.0"> <class>Dialog</class> <widget class="QDialog" name="winRenamer">  <property name="geometry">   <rect>    <x>120</x>    <y>120</y>    <width>320</width>    <height>100</height>   </rect>  </property>  <property name="windowTitle">   <string>Rename / Replace</string>  </property>  <layout class="QVBoxLayout" name="verticalLayout">   <property name="spacing">    <number>4</number>   </property>   <property name="margin">    <number>4</number>   </property>   <item>    <widget class="QLineEdit" name="cc_edit_rename"/>   </item>   <item>    <layout class="QHBoxLayout" name="horizontalLayout">     <item>      <widget class="QCheckBox" name="cc_check_replace">       <property name="text">        <string>Replace By:</string>       </property>      </widget>     </item>     <item>      <widget class="QLineEdit" name="cc_edit_replace">       <property name="enabled">        <bool>false</bool>       </property>      </widget>     </item>    </layout>   </item>   <item>    <layout class="QHBoxLayout" name="horizontalLayout_2">     <item>      <widget class="QRadioButton" name="cc_check_all">       <property name="enabled">        <bool>false</bool>       </property>       <property name="text">        <string>All</string>       </property>      </widget>     </item>     <item>      <widget class="QRadioButton" name="cc_check_selected">       <property name="text">        <string>Selected</string>       </property>       <property name="checked">        <bool>true</bool>       </property>      </widget>     </item>     <item>      <widget class="QRadioButton" name="cc_check_hierarchy">       <property name="text">        <string>Hierarchy</string>       </property>      </widget>     </item>    </layout>   </item>   <item>    <widget class="QPushButton" name="cc_push_rename">     <property name="text">      <string>Rename / Replace</string>     </property>    </widget>   </item>  </layout> </widget> <resources/> <connections>  <connection>   <sender>cc_check_replace</sender>   <signal>toggled(bool)</signal>   <receiver>cc_edit_replace</receiver>   <slot>setEnabled(bool)</slot>   <hints>    <hint type="sourcelabel">     <x>43</x>     <y>32</y>    </hint>    <hint type="destinationlabel">     <x>118</x>     <y>31</y>    </hint>   </hints>  </connection>  <connection>   <sender>cc_check_replace</sender>   <signal>toggled(bool)</signal>   <receiver>cc_check_all</receiver>   <slot>setEnabled(bool)</slot>   <hints>    <hint type="sourcelabel">     <x>34</x>     <y>39</y>    </hint>    <hint type="destinationlabel">     <x>34</x>     <y>59</y>    </hint>   </hints>  </connection> </connections></ui>"""# support des lettres# renommage de noms en double avec absolute pathclass Renamer():    replace = False    _settings = {"startNb": 1, "stepNb": 1, "structure": [0]}    _startNb = 1    _stepNb = 1    _steps  = [                ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"],                ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"],                ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]              ]    _format = [0]    _win = None    _winName = "winRenamer"    _settingsName = "dialRenamerSettings"    def __init__(self, *arg):        #  ### ou %3d        self._setupUI()    def _setupUI(self):        if cmds.window(self._winName, q=True, ex=True):            cmds.deleteUI(self._winName)        self._win = cmds.loadUI(s=uiFile)        # rename / find        cmds.showWindow(self._win)        cmds.popupMenu(p="cc_edit_rename")        cmds.menuItem(l="Old Name", c=functools.partial(self._insert, "<OldName>", "cc_edit_rename"))        cmds.menuItem(divider=True)        cmds.menuItem(l="Object Type", c=functools.partial(self._insert, "<ObjectType>", "cc_edit_rename"))        cmds.menuItem(l="Parent Name", c=functools.partial(self._insert, "<ParentName>", "cc_edit_rename"))        cmds.menuItem(divider=True)        cmds.menuItem(l="Set Start/Step...", c=self.setNumOptions)        # replace        cmds.popupMenu(p="cc_edit_replace")        cmds.menuItem(l="Old Name", c=functools.partial(self._insert, "<OldName>", "cc_edit_replace"))        cmds.menuItem(divider=True)        cmds.menuItem(l="Object Type", c=functools.partial(self._insert, "<ObjectType>", "cc_edit_replace"))        cmds.menuItem(l="Parent Name", c=functools.partial(self._insert, "<ParentName>", "cc_edit_replace"))        cmds.menuItem(divider=True)        cmds.menuItem(l="Set Start/Step...", c=self.setNumOptions)        cmds.button("cc_push_rename", e=True, c=self.rename)        cmds.textField("cc_edit_rename", e=True, ec=self.rename)        cmds.textField("cc_edit_replace", e=True, ec=self.rename)    def setNumOptions(self, *args):        prompt = cmds.promptDialog(title='Start/Step Settings', message='Start, Step', button=['OK', 'Cancel'], defaultButton='OK', cancelButton='Cancel', dismissString='Cancel', text=str(self._startNb)+","+str(self._stepNb))        if prompt == 'OK':            results = cmds.promptDialog(query=True, text=True).split(",")            self._settings["startNb"] = int(results[0])            self._settings["stepNb"] = int(results[1])    def _insert(self, *args):        ajout = args[0]        cmds.textField(args[1], e=True, it=ajout)    def _nb_digits(self, chaine):        nb_zeros = 0        substr = ""        match_hash = re.findall("(#+)", chaine)        if match_hash:            nb_zeros = len(match_hash[0])            substr = match_hash[0]        else:            match_digit = re.findall("[%](\d)(?i)[d]", chaine)            if match_digit:                nb_zeros = int(match_digit[0])                substr = re.search("%(\d)(?i)d", chaine).group()        if nb_zeros > 0:            return nb_zeros, substr        else:            return False    def _children(self, node):        liste = list()        node = OpenMaya.MFnDagNode(node)        liste.append(node.fullPathName())        for i in xrange(0, node.childCount()):            child = node.child(i)            if child.hasFn(OpenMaya.MFn.kTransform):                liste.extend(self._children(child))        return liste    def _parseCsts(self, obj, name):        node = OpenMaya.MFnDependencyNode(obj)        old_name = node.name()        dag = self._isDag(obj)        if dag:            dagNode = OpenMaya.MFnDagNode(obj)            obj = dagNode.fullPathName()        if re.search('<OldName>', name):            name = old_name.join(name.split('<OldName>'))        if re.search('<ObjectType>', name):            t = node.typeName()            if t == "transform":                shapes = cmds.listRelatives(obj, s=True, f=True)                if len(shapes) > 0:                    t = cmds.objectType(shapes[0])            name = t.join(name.split('<ObjectType>'))        if re.search('<ParentName>', name) and dag:            if cmds.listRelatives(obj, p=True):                name = cmds.listRelatives(obj, p=True)[0].join(name.split('<ParentName>'))            else:                name = "Root".join(name.split('<ParentName>'))                cmds.warning("Some objects have no parent")        return name    def _getObjects(self):        if cmds.radioButton("cc_check_all", q=True, sl=True):            if self.rename:                objects = cmds.ls("*"+cmds.textField("cc_edit_rename", q=True, text=True)+"*")            else:                objects = list()        elif cmds.radioButton("cc_check_hierarchy", q=True, sl=True):            sel = cmds.ls(sl=True, l=True)            objects = list()            for obj in sel:                objects.extend(self._children(self._MObject(obj)))        else:            objects = cmds.ls(sl=True)        return [self._MObject(obj) for obj in objects]        def _parseDigits(self, nn, i=0):        digits = self._nb_digits(nn)        if digits:            num = self._settings["startNb"]+i*self._settings["stepNb"] -1;            rt = ''            if num==0:                rt = 'A'            else:                while num > 0:                    nnn = num % 26                    rt = self._steps[1][nnn] + rt                    num /= 26            nn = str(rt).zfill(digits[0]).join(nn.split(digits[1]))        return nn             def _MObject(self, name):        sel = OpenMaya.MSelectionList()        OpenMaya.MGlobal.getSelectionListByName(name, sel)        mObj = OpenMaya.MObject()        sel.getDependNode(0, mObj)        return mObj    def _isDag(self, obj):        if isinstance(obj, OpenMaya.MObject):            return obj.hasFn(OpenMaya.MFn.kDagNode)        else:            return False    def rename(self, *args):        newName = cmds.textField("cc_edit_rename", q=True, text=True)        if len(newName) < 1:            cmds.warning("No name in the field.")            return False        objects = self._getObjects()        fnNode = OpenMaya.MFnDependencyNode()        newName = cmds.textField("cc_edit_rename", q=True, text=True)        self.replace = cmds.checkBox("cc_check_replace", q=True, v=True)        replaceName = cmds.textField("cc_edit_replace", q=True, text=True)        for i, obj in enumerate(objects):            fnNode.setObject(obj)            if self.replace:                n = fnNode.name()                n = re.sub(r"(" + newName + ")", replaceName, n)            else:                n = newName            n = self._parseDigits(n, i)            n = self._parseCsts(obj, n)            if obj.hasFn(OpenMaya.MFn.kDagNode):                oldName = OpenMaya.MFnDagNode(obj).fullPathName()            else:                oldName = fnNode.name()            try:                cmds.rename(oldName, n)            except:                continueRenamer()

参考文章：QT and Maya. How to use a QT Designer UI with Maya. No PyQt