62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
import wx
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from .. import _api
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from .backend_agg import FigureCanvasAgg
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from .backend_wx import _BackendWx, _FigureCanvasWxBase, FigureFrameWx
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from .backend_wx import ( # noqa: F401 # pylint: disable=W0611
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NavigationToolbar2Wx as NavigationToolbar2WxAgg)
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@_api.deprecated(
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"3.6", alternative="FigureFrameWx(..., canvas_class=FigureCanvasWxAgg)")
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class FigureFrameWxAgg(FigureFrameWx):
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def get_canvas(self, fig):
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return FigureCanvasWxAgg(self, -1, fig)
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class FigureCanvasWxAgg(FigureCanvasAgg, _FigureCanvasWxBase):
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"""
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The FigureCanvas contains the figure and does event handling.
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In the wxPython backend, it is derived from wxPanel, and (usually)
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lives inside a frame instantiated by a FigureManagerWx. The parent
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window probably implements a wxSizer to control the displayed
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control size - but we give a hint as to our preferred minimum
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size.
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"""
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def draw(self, drawDC=None):
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"""
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Render the figure using agg.
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"""
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FigureCanvasAgg.draw(self)
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self.bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba())
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self._isDrawn = True
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self.gui_repaint(drawDC=drawDC)
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def blit(self, bbox=None):
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# docstring inherited
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bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba())
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if bbox is None:
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self.bitmap = bitmap
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else:
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srcDC = wx.MemoryDC(bitmap)
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destDC = wx.MemoryDC(self.bitmap)
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x = int(bbox.x0)
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y = int(self.bitmap.GetHeight() - bbox.y1)
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destDC.Blit(x, y, int(bbox.width), int(bbox.height), srcDC, x, y)
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destDC.SelectObject(wx.NullBitmap)
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srcDC.SelectObject(wx.NullBitmap)
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self.gui_repaint()
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def _rgba_to_wx_bitmap(rgba):
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"""Convert an RGBA buffer to a wx.Bitmap."""
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h, w, _ = rgba.shape
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return wx.Bitmap.FromBufferRGBA(w, h, rgba)
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@_BackendWx.export
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class _BackendWxAgg(_BackendWx):
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FigureCanvas = FigureCanvasWxAgg
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