BlockPreviewDialog.py 文件源码

def __init__(self, parent, controller, tagname, title):
        """
        Constructor
        @param parent: Parent wx.Window of dialog for modal
        @param controller: Reference to project controller
        @param tagname: Tagname of project POU edited
        @param title: Title of dialog frame
        """
        wx.Dialog.__init__(self, parent, title=title)

        # Save reference to
        self.Controller = controller
        self.TagName = tagname

        # Label for preview
        self.PreviewLabel = wx.StaticText(self, label=_('Preview:'))

        # Create Preview panel
        self.Preview = wx.Panel(self, style=wx.SIMPLE_BORDER)
        self.Preview.SetBackgroundColour(wx.WHITE)

        # Add function to preview panel so that it answers to graphic elements
        # like Viewer
        setattr(self.Preview, "GetDrawingMode", lambda: FREEDRAWING_MODE)
        setattr(self.Preview, "GetScaling", lambda: None)
        setattr(self.Preview, "GetBlockType", controller.GetBlockType)
        setattr(self.Preview, "IsOfType", controller.IsOfType)

        # Bind paint event on Preview panel
        self.Preview.Bind(wx.EVT_PAINT, self.OnPaint)

        # Add default dialog buttons sizer
        self.ButtonSizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)
        self.Bind(wx.EVT_BUTTON, self.OnOK,
                  self.ButtonSizer.GetAffirmativeButton())

        self.Element = None            # Graphic element to display in preview
        self.MinElementSize = None     # Graphic element minimal size

        # Variable containing the graphic element name when dialog is opened
        self.DefaultElementName = None
        self.Fit()

        # List of variables defined in POU {var_name: (var_class, var_type),...}
        self.VariableList = {}