46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
import wx
|
|
|
|
from .backend_agg import FigureCanvasAgg
|
|
from .backend_wx import _BackendWx, _FigureCanvasWxBase
|
|
from .backend_wx import ( # noqa: F401 # pylint: disable=W0611
|
|
NavigationToolbar2Wx as NavigationToolbar2WxAgg)
|
|
|
|
|
|
class FigureCanvasWxAgg(FigureCanvasAgg, _FigureCanvasWxBase):
|
|
def draw(self, drawDC=None):
|
|
"""
|
|
Render the figure using agg.
|
|
"""
|
|
FigureCanvasAgg.draw(self)
|
|
self.bitmap = self._create_bitmap()
|
|
self._isDrawn = True
|
|
self.gui_repaint(drawDC=drawDC)
|
|
|
|
def blit(self, bbox=None):
|
|
# docstring inherited
|
|
bitmap = self._create_bitmap()
|
|
if bbox is None:
|
|
self.bitmap = bitmap
|
|
else:
|
|
srcDC = wx.MemoryDC(bitmap)
|
|
destDC = wx.MemoryDC(self.bitmap)
|
|
x = int(bbox.x0)
|
|
y = int(self.bitmap.GetHeight() - bbox.y1)
|
|
destDC.Blit(x, y, int(bbox.width), int(bbox.height), srcDC, x, y)
|
|
destDC.SelectObject(wx.NullBitmap)
|
|
srcDC.SelectObject(wx.NullBitmap)
|
|
self.gui_repaint()
|
|
|
|
def _create_bitmap(self):
|
|
"""Create a wx.Bitmap from the renderer RGBA buffer"""
|
|
rgba = self.get_renderer().buffer_rgba()
|
|
h, w, _ = rgba.shape
|
|
bitmap = wx.Bitmap.FromBufferRGBA(w, h, rgba)
|
|
bitmap.SetScaleFactor(self.GetDPIScaleFactor())
|
|
return bitmap
|
|
|
|
|
|
@_BackendWx.export
|
|
class _BackendWxAgg(_BackendWx):
|
|
FigureCanvas = FigureCanvasWxAgg
|