69 lines
1.8 KiB
Python
69 lines
1.8 KiB
Python
from queue import Empty
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import wx
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from platypush.plugins.camera.model.writer.preview import PreviewWriter
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class Panel(wx.Panel):
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def __init__(self, parent, process, width: int, height: int):
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import wx
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super().__init__(parent, -1)
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self.process: PreviewWriter = process
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self.SetBackgroundStyle(wx.BG_STYLE_CUSTOM)
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self.SetSize(width, height)
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self.Bind(wx.EVT_PAINT, self.on_paint)
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self.update()
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@staticmethod
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def img_to_bitmap(image) -> wx.Bitmap:
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import wx
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return wx.Bitmap.FromBuffer(image.width, image.height, image.tobytes())
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def get_bitmap(self):
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try:
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return self.process.bitmap_queue.get(block=True, timeout=1.0)
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except Empty:
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return None
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def update(self):
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import wx
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self.Refresh()
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self.Update()
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wx.CallLater(15, self.update)
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def create_bitmap(self):
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image = self.get_bitmap()
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if image is None:
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return
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return self.img_to_bitmap(image)
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def on_paint(self, *_, **__):
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import wx
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bitmap = self.create_bitmap()
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if not bitmap:
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return
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dc = wx.AutoBufferedPaintDC(self)
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dc.DrawBitmap(bitmap, 0, 0)
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class Frame(wx.Frame):
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def __init__(self, process):
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import wx
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style = wx.DEFAULT_FRAME_STYLE & ~wx.RESIZE_BORDER & ~wx.MAXIMIZE_BOX
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self.process = process
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image = self.process.bitmap_queue.get()
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super().__init__(None, -1, process.camera.info.device or 'Camera Preview', style=style)
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self.Bind(wx.EVT_WINDOW_DESTROY, self.on_close)
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self.panel = Panel(self, process, width=image.width, height=image.height)
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self.Fit()
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def on_close(self, *_, **__):
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self.process.close()
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# vim:sw=4:ts=4:et:
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