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from contextlib import nullcontext |
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from .backend_cairo import FigureCanvasCairo |
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from .backend_gtk4 import Gtk, FigureCanvasGTK4, _BackendGTK4 |
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class FigureCanvasGTK4Cairo(FigureCanvasCairo, FigureCanvasGTK4): |
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_context_is_scaled = True |
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def on_draw_event(self, widget, ctx): |
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with (self.toolbar._wait_cursor_for_draw_cm() if self.toolbar |
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else nullcontext()): |
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self._renderer.set_context(ctx) |
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scale = self.device_pixel_ratio |
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ctx.scale(1 / scale, 1 / scale) |
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allocation = self.get_allocation() |
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Gtk.render_background( |
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self.get_style_context(), ctx, |
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allocation.x, allocation.y, |
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allocation.width, allocation.height) |
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self._renderer.dpi = self.figure.dpi |
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self.figure.draw(self._renderer) |
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@_BackendGTK4.export |
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class _BackendGTK4Cairo(_BackendGTK4): |
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FigureCanvas = FigureCanvasGTK4Cairo |
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