""" Defines the PlotWindow class.
"""

from enable.api import Window
from chaco.shell.scaly_plot import ScalyPlot

from traits.etsconfig.api import ETSConfig

if ETSConfig.toolkit == "wx":

    import wx
    class PlotWindow(wx.Frame):
        """ A window for holding top-level plot containers.

        Contains many utility methods for controlling the appearance of the
        window, which mostly pass through to underlying WX calls.
        """

        def __init__(self, is_image=False, bgcolor="white",
                     image_default_origin="top left", *args, **kw):

            kw.setdefault("size", (600,600))
            wx.Frame.__init__(self, None, *args, **kw )

            # Some defaults which should be overridden by preferences.
            self.bgcolor = bgcolor
            self.image_default_origin = image_default_origin

            # Create an empty top-level container
            if is_image:
                top_container = self._create_top_img_container()
            else:
                top_container = self._create_top_container()

            # The PlotSession of which we are a part.  We need to know this in order
            # to notify it of our being closed, etc.
            self.session = None


            # Create the Enable Window object, and store a reference to it.
            # (This will be handy later.)  The Window requires a WX parent object
            # as its first argument, so we just pass 'self'.
            self.plot_window = Window(self, component=top_container)

            # We'll create a default sizer to put our plot_window in.
            sizer = wx.BoxSizer(wx.HORIZONTAL)

            # Since Window is an Enable object, we need to get its corresponding
            # WX control.  This is stored in its ".control" attribute.
            sizer.Add(self.plot_window.control, 1, wx.EXPAND)

            # Hook up event handlers for destroy, etc.
            wx.EVT_WINDOW_DESTROY(self, self._on_window_close)

            # More WX boilerplate.
            self.SetSizer(sizer)
            self.SetAutoLayout(True)
            self.Show(True)
            return

        def get_container(self):
            return self.plot_window.component

        def set_container(self, container):
            self.plot_window.component = container

        def iconize(self, iconize):
            """Iconizes the window if *iconize* is True.
            """
            self.Iconize(iconize)

        def maximize(self, maximize):
            """ If *maximize* is True, maximizes the window size; restores if False.
            """
            self.Maximize(maximize)

        def set_size(self, width, height):
            self.SetSize((width, height))

        def set_title(self, title):
            self.SetTitle(title)

        def raise_window(self):
            """Raises this window to the top of the window hierarchy.
            """
            self.Raise()

        def close(self):
            self.Close()

        # This is a Python property because this is not a HasTraits subclass.
        container = property(get_container, set_container)

        #------------------------------------------------------------------------
        # Private methods
        #------------------------------------------------------------------------

        def _create_top_container(self):
            plot = ScalyPlot(
                padding=50,
                fill_padding=True,
                bgcolor=self.bgcolor,
                use_backbuffer=True,
            )
            return plot

        def _create_top_img_container(self):
            plot = ScalyPlot(
                padding=50,
                fill_padding=True,
                bgcolor=self.bgcolor,
                use_backbuffer=True,
                default_origin=self.image_default_origin,
            )
            return plot


        def _on_window_close(self, event):
            if self.session:
                try:
                    ndx = self.session.windows.index(self)
                    self.session.del_window(ndx)
                except ValueError:
                    pass

elif ETSConfig.toolkit == "qt4":

    from pyface.qt import QtCore, QtGui

    class PlotWindow(QtGui.QFrame):
        """ A window for holding top-level plot containers.

        Contains many utility methods for controlling the appearance of the
        window, which mostly pass through to underlying Qt calls.
        """

        def __init__(self, is_image=False, bgcolor="white",
                     image_default_origin="top left", *args, **kw):

            if 'size' in kw and isinstance(kw['size'], tuple):
                # Convert to a QSize.
                kw['size'] = QtCore.QSize(*kw['size'])
            super(PlotWindow, self).__init__(None, *args, **kw )

            # Some defaults which should be overridden by preferences.
            self.bgcolor = bgcolor
            self.image_default_origin = image_default_origin

            # Create an empty top-level container
            if is_image:
                top_container = self._create_top_img_container()
            else:
                top_container = self._create_top_container()

            # The PlotSession of which we are a part.  We need to know this in order
            # to notify it of our being closed, etc.
            self.session = None

            # Create the Enable Window object, and store a reference to it.
            # (This will be handy later.)  The Window requires a parent object
            # as its first argument, so we just pass 'self'.
            self.plot_window = Window(self, component=top_container)

            layout = QtGui.QVBoxLayout()
            layout.setContentsMargins(0, 0, 0, 0)
            layout.addWidget(self.plot_window.control)
            self.setLayout(layout)

            size = kw.get("size", QtCore.QSize(600,600))
            self.set_size(size.width(), size.height())

            self.show()

        def get_container(self):
            return self.plot_window.component

        def set_container(self, container):
            self.plot_window.component = container

        def iconize(self, iconize):
            """Iconizes the window if *iconize* is True.
            """
            if iconize:
                self.showMinimized()
            else:
                self.showNormal()

        def maximize(self, maximize):
            """ If *maximize* is True, maximizes the window size; restores if False.
            """
            if maximize:
                self.showMaximized()
            else:
                self.showNormal()

        def set_size(self, width, height):
            self.resize(width, height)

        def set_title(self, title):
            self.setWindowTitle(title)

        def raise_window(self):
            """Raises this window to the top of the window hierarchy.
            """
            self.raise_()

        # This is a Python property because this is not a HasTraits subclass.
        container = property(get_container, set_container)

        #------------------------------------------------------------------------
        # Private methods
        #------------------------------------------------------------------------

        def _create_top_container(self):
            plot = ScalyPlot(
                padding=50,
                fill_padding=True,
                bgcolor=self.bgcolor,
                use_backbuffer=True,
            )
            return plot

        def _create_top_img_container(self):
            plot = ScalyPlot(
                padding=50,
                fill_padding=True,
                bgcolor=self.bgcolor,
                use_backbuffer=True,
                default_origin=self.image_default_origin,
            )
            return plot

        def closeEvent(self, event):
            if self.session:
                try:
                    ndx = self.session.windows.index(self)
                    self.session.del_window(ndx)
                except ValueError:
                    pass

else:

    class PlotWindow(object):

        def __init__(self, *args, **kwargs):
            raise NotImplmentedError(
                'PlotWindow not implemented for `null` toolkit')

# EOF