基于PyQt4和PySide的输入对话框

今天做了个基于PyQt4和PySide的输入对话框.已放到PyPi中,包名wlab，大家可以使用pip安装：

pip install wlab

在程序输入中,有时会要求同时改变多个参数值,而且类型也不尽相同,

这时下面的模块比较彻底的解决了这个问题.先看个示例吧.

比如我们有三个参数,分别为int,float,和字符串类型:

values={'String':'This is String','float':3.5,'int':15}GroupBoxTitle='Please set values:'title='QInputBox:'rvalues=QInputBox(values=values,GroupBoxTitle=GroupBoxTitle,title=title)print(rvalues)

生成的GUI界面如下:

返回的结果中我们注意到字典rvalues里面数据的类型和字典valuse中时一致的.

也就是说:

如果values中是整数,那么rvalue中的值也是整数;

如果value中是浮点数,那么rvalue中的值也是浮点数;

如果value中是字符串,那么rvalue中的值也是字符串;

目前只支持这三种类型.但对values中输入参数并没有没有数目限制.

对于不会使用pip的新手，可以复制下面的文件：

#-*- coding:utf-8 -*-#~ #--------------------------------------------------------------------------------#~ module:wlab#~ FileName=WPyQtInput.py#~Class:QInputGroupBox,QInputDialog,QInputBox#~ author:Wu Xuping#~ Date:2013-05-06#~ Email:[e-mail]#~ Remark:based on PyQt4 or PySide#~ #-------------------------------------------------try:    from PyQt4 import QtGui    from PyQt4 import QtCore    from PyQt4.QtCore import pyqtSlot    from PyQt4.QtCore import pyqtSignal    IsPyQt=True    IsPySide=Falseexcept ImportError:    from PySide import QtGui    from PySide import QtCore    from PySide.QtCore import Slot as pyqtSlot    from PySide.QtCore import Signal as pyqtSignal    IsPyQt=False    IsPySide=True#~ #-------------------------------------------------#~ #-------------------------------------------------#~ #将字符串一特定的长度输出def FormatStr(MaxStrLength,s):    if (len(s)<MaxStrLength):        for n in range(MaxStrLength-len(s)):            s=' '+s    rs=str(s)+':'    return rsclass IntLineEdit(QtGui.QLineEdit):    def __init__ (self,num=0):        '''        #~ IntLineEdit(num)        '''        QtGui.QLineEdit.__init__ (self)        self.num=num        self.setText(str(self.num))    @pyqtSlot(int)    def setValue(self,n):        self.setText(str(n))        return (self.num,n)class FloatLineEdit(QtGui.QLineEdit):    def __init__ (self,num=0.0):        '''        #~ FloatLineEdit(num)        '''        QtGui.QLineEdit.__init__ (self)        self.num=num        self.setText(str(self.num))    @pyqtSlot(int)    def setValue(self,n):        if ( self.num>0):            self.setText(str(self.num+n*self.num/50.0))        else:            self.setText(str(self.num-n*self.num/50.0))        return (self.num,n)#~ #-------------------------------------------------class QInputGroupBox(QtGui.QGroupBox):    def __init__(self, values={'String':'This is String','float':3.5,'int':15},title='Please set values',ntimes=2.0,parent=None):        '''        #~#---------------------------------------------------        #~#Examples:        #~#---------------------------------------------------        #~ >>>values={'String':'This is String','float':3.5,'int':15}        #~ >>>GroupBoxTitle='Please set values'        #~ >>>self.QIGBox=QInputGroupBox(values=values,title=GroupBoxTitle,ntimes=2.0,parent=self)        #~ >>>rvalues=self.QIGBox.GetOriginValue()        #~ >>>rvalues=self.QIGBox.GetModifiedValues()        #~#---------------------------------------------------        #~#Parameters:        #~#---------------------------------------------------        #~#values={'String':'This is String','float':3.5,'int':15}        #~#title='Please set values'        #~#ntimes=2.0        #~#parent=None        '''        QtGui.QGroupBox.__init__ (self, title=title,parent = parent)        self.OriginValues=values.copy()        self.ModifiedValues=values.copy()        MaxStrLength=max([len(str(s)) for s in list(values.keys())])        layout = QtGui.QGridLayout()        cnt=0        for key in self.ModifiedValues:            label=FormatStr(MaxStrLength,str(key))            KeyLabel=QtGui.QLabel(label)            layout.addWidget(KeyLabel, cnt, 0)            ovk=self.ModifiedValues[key]            if(type(ovk)==int) :                valueLineEdit=IntLineEdit(ovk)                layout.addWidget(valueLineEdit, cnt , 1)                slider=QtGui.QSlider(orientation= QtCore.Qt.Horizontal)                if (ovk>0):                    slider.setRange( ovk/(ntimes+1), ovk*(ntimes+1))                elif (ovk==0):                    slider.setRange( -5*(ntimes+1), 5*(ntimes+1))                else:                    slider.setRange(ovk*(ntimes+1),ovk/(ntimes+1))                slider.setValue(ovk)                QtCore.QObject.connect(slider,QtCore.SIGNAL('valueChanged(int)'),                            valueLineEdit, QtCore.SLOT('setValue(int)'))                layout.addWidget(slider, cnt ,2)            elif(type(ovk)==float) :                valueLineEdit=FloatLineEdit(ovk)                layout.addWidget(valueLineEdit, cnt , 1)                slider=QtGui.QSlider(orientation= QtCore.Qt.Horizontal)                slider.setRange( -50*ntimes, 50*ntimes)                QtCore.QObject.connect(slider,QtCore.SIGNAL('valueChanged(int)'),                            valueLineEdit, QtCore.SLOT('setValue(int)'))                layout.addWidget(slider, cnt ,2)            else:                valueLineEdit=QtGui.QLineEdit(ovk)                layout.addWidget(valueLineEdit, cnt, 1,1,2)            #~ #set an object name for QLineEdit,Later we can use findchild() to find it            valueLineEdit.setObjectName('VLE'+str(cnt))            layout.setRowStretch(cnt,5)            cnt=cnt+1        layout.setColumnStretch(0, 1)        layout.setColumnStretch(1, 5)        layout.setColumnStretch(2, 10)        self.setLayout(layout)    def GetOriginValue(self):        '''        #~ if the user click btn_Cancel,then return OriginValues        '''        return self.OriginValues    def GetModifiedValues(self):        '''        #~ if the user click btn_OK,then return self.ModifiedValues        '''        cnt=0        for key in self.ModifiedValues:            keyStr=str(key)            VLEObjectName='VLE'+str(cnt)            if (IsPyQt):                VLE=self.findChild((QtGui.QLineEdit, ),VLEObjectName)            else:                VLE=self.findChild(QtGui.QLineEdit,VLEObjectName)            cnt=cnt+1            ovk=self.ModifiedValues[key]            if(type(ovk)==int):                self.ModifiedValues[key]=int(VLE.text())            elif(type(ovk)==float):                self.ModifiedValues[key]=float(VLE.text())            else:                self.ModifiedValues[key]=str(VLE.text())        return self.ModifiedValues#~ #-------------------------------------------------class QInputDialog(QtGui.QDialog):    def __init__(self, values={'String':'This is String','float':3.5,'int':15},GroupBoxTitle='Please set values',title='QInputDialog:',parent=None):        '''        #~ >>>values={'String':'This is String','float':3.5,'int':15}        #~ >>>GroupBoxTitle='Please set values'        #~ >>>title='QInputDialog:'        #~ >>>dlg = QInputDialog(values=values,GroupBoxTitle=GroupBoxTitle,title=title,parent=None)        #~ >>>if ( dlg.exec_() == QtGui.QDialog.Accepted):         #~ >>>     rvalues = dlg.GetModifiedValues()        #~ >>>else:        #~ >>>     rvalues = dlg.GetOriginValue()        '''        QtGui.QDialog.__init__(self, parent=parent)        self.setWindowTitle(title)        self.QIGBox=QInputGroupBox(values=values,title=GroupBoxTitle,parent=self)        self.vbox = QtGui.QVBoxLayout()        self.vbox.addWidget(self.QIGBox)        self.btn_OK=QtGui.QDialogButtonBox(QtGui.QDialogButtonBox.Ok)        self.btn_Cancel=QtGui.QDialogButtonBox(QtGui.QDialogButtonBox.Cancel)        self.btn_OK.clicked.connect(self.accept )        self.btn_Cancel.clicked.connect(self.reject)        hbox = QtGui.QHBoxLayout()        hbox.addWidget(self.btn_OK)        hbox.addWidget(self.btn_Cancel)        self.vbox.addLayout(hbox)        self.setLayout(self.vbox)    def GetOriginValue(self):        '''        #~ if the user click btn_Cancel,then return OriginValues        '''        return self.QIGBox.GetOriginValue()    def GetModifiedValues(self):        '''        #~ if the user click btn_OK,then return self.ModifiedValues        '''        return self.QIGBox.GetModifiedValues()#~ #-------------------------------------------------#~ #Good packaging QInputBoxdef QInputBox(values={'String':'This is String','float':3.5,'int':15},GroupBoxTitle='Please set values',title='QInputBox'):    '''    #~ >>>values={'String':'This is String','float':3.5,'int':15}    #~ >>>GroupBoxTitle='Please set values'    #~ >>>title='QInputBox'    #~ >>>rvalues=QInputBox(values=values,GroupBoxTitle=GroupBoxTitle,title=title)    #~ >>>print(rvalues)    #~ #>>>rvalues=QInputBox(values,GroupBoxTitle)    #~ #>>>rvalues=QInputBox(values)    #~ #>>>rvalues=QInputBox()    '''    #app = QtGui.QApplication(sys.argv)#已自动创建，无需再创建    dlg = QInputDialog(values=values,GroupBoxTitle=GroupBoxTitle,title=title)    if ( dlg.exec_() == QtGui.QDialog.Accepted):        rvalues = dlg.GetModifiedValues()    else:        rvalues = dlg.GetOriginValue()    return rvalues#~ #---------------------------------------------------------------------------------------------------------#~ # main test program for __WPyQtInput__.py#~ #---------------------------------------------------------------------------------------------------------if __name__ == '__main__':    #----------------------------------------------------------------------------------------    try:        from PyQt4 import QtGui        from PyQt4 import QtCore        from PyQt4.QtCore import pyqtSlot        from PyQt4.QtCore import pyqtSignal        IsPyQt=True        IsPySide=False    except ImportError:        from PySide import QtGui        from PySide import QtCore        from PySide.QtCore import Slot as pyqtSlot        from PySide.QtCore import Signal as pyqtSignal    #----------------------------------------------------------------------------------------    import sys    app = QtGui.QApplication(sys.argv)#创建Qt进程app    #----------------------------------------------------------------------------------------    #示例1    values={'String':'This is String','float':-3.5,'int':-15}    GroupBoxTitle='Please set values'    title='the first example of QInputBox '    rvalues=QInputBox(values=values,GroupBoxTitle=GroupBoxTitle,title=title)    print(rvalues)    #>>>{'int': -15, 'float': -3.5, 'String': 'This is String'}    #----------------------------------------------------------------------------------------    #示例2    from collections import OrderedDict    values=OrderedDict([('c', 1), (2, 2), ('a', 3)])    rvalues1=QInputBox(values=values)    print(rvalues1)    #>>>OrderedDict([('c', 1), (2, 2), ('a', 3)])    #----------------------------------------------------------------------------------------    #示例3    values={'String':'This is String','float':-3.5,'int':-15}    GroupBoxTitle='Please set values'    title='QInputBox'    rvalues2=QInputBox(values=values,GroupBoxTitle=GroupBoxTitle,title=title)    print(rvalues2)    #>>>{'int': -15, 'float': -3.5, 'String': 'This is String'}    #----------------------------------------------------------------------------------------    sys.exit(app.exec_())