| import wx |
|
|
| from .. import _api |
| from .backend_agg import FigureCanvasAgg |
| from .backend_wx import _BackendWx, _FigureCanvasWxBase, FigureFrameWx |
| from .backend_wx import ( |
| NavigationToolbar2Wx as NavigationToolbar2WxAgg) |
|
|
|
|
| @_api.deprecated( |
| "3.6", alternative="FigureFrameWx(..., canvas_class=FigureCanvasWxAgg)") |
| class FigureFrameWxAgg(FigureFrameWx): |
| def get_canvas(self, fig): |
| return FigureCanvasWxAgg(self, -1, fig) |
|
|
|
|
| class FigureCanvasWxAgg(FigureCanvasAgg, _FigureCanvasWxBase): |
| """ |
| The FigureCanvas contains the figure and does event handling. |
| |
| In the wxPython backend, it is derived from wxPanel, and (usually) |
| lives inside a frame instantiated by a FigureManagerWx. The parent |
| window probably implements a wxSizer to control the displayed |
| control size - but we give a hint as to our preferred minimum |
| size. |
| """ |
|
|
| def draw(self, drawDC=None): |
| """ |
| Render the figure using agg. |
| """ |
| FigureCanvasAgg.draw(self) |
| self.bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba()) |
| self._isDrawn = True |
| self.gui_repaint(drawDC=drawDC) |
|
|
| def blit(self, bbox=None): |
| |
| bitmap = _rgba_to_wx_bitmap(self.get_renderer().buffer_rgba()) |
| 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 _rgba_to_wx_bitmap(rgba): |
| """Convert an RGBA buffer to a wx.Bitmap.""" |
| h, w, _ = rgba.shape |
| return wx.Bitmap.FromBufferRGBA(w, h, rgba) |
|
|
|
|
| @_BackendWx.export |
| class _BackendWxAgg(_BackendWx): |
| FigureCanvas = FigureCanvasWxAgg |
|
|
