Class vtkTkImageViewerWidget

Wrapping/Python/vtkmodules/tk/vtkTkImageViewerWidget.py:20–299

A vtkTkImageViewerWidget for Python. Use GetImageViewer() to get the vtkImageViewer. Create with the keyword double=1 in order to generate a double-buffered viewer. Create with the keyword focus_on_enter=1 to enable focus-follows-mouse. The default is for a click-to-focu

from .vtkLoadPythonTkWidgets import vtkLoadPythonTkWidgets

class vtkTkImageViewerWidget(tkinter.Widget):
    """
    A vtkTkImageViewerWidget for Python.

    Use GetImageViewer() to get the vtkImageViewer.

    Create with the keyword double=1 in order to generate a
    double-buffered viewer.

    Create with the keyword focus_on_enter=1 to enable
    focus-follows-mouse.  The default is for a click-to-focus mode.
    """
    def __init__(self, master, cnf={}, **kw):
        """
        Constructor.

        Keyword arguments:

          iv -- Use passed image viewer instead of creating a new one.

          double -- If True, generate a double-buffered viewer.
          Defaults to False.

          focus_on_enter -- If True, use a focus-follows-mouse mode.
          Defaults to False where the widget will use a click-to-focus
          mode.
        """
        # load the necessary extensions into tk
        vtkLoadPythonTkWidgets(master.tk)

        try: # use specified vtkImageViewer
            imageViewer = kw['iv']
        except KeyError: # or create one if none specified
            imageViewer = vtkImageViewer()

        doubleBuffer = 0
        try:
            if kw['double']:
                doubleBuffer = 1
            del kw['double']
        except:
            pass

        # check if focus should follow mouse
        if kw.get('focus_on_enter'):
            self._FocusOnEnter = 1
            del kw['focus_on_enter']
        else:
            self._FocusOnEnter = 0

        kw['iv'] = imageViewer.GetAddressAsString("vtkImageViewer")
        tkinter.Widget.__init__(self, master, 'vtkTkImageViewerWidget',
                                cnf, kw)
        if doubleBuffer:
            imageViewer.GetRenderWindow().DoubleBufferOn()

        self.BindTkImageViewer()