wxPython自定义progressBar问题
wxPython custom progressBar problems
首先，我是 python 的新手，所以请不要因为代码混乱而评判我 :)。我试图制作循环进度条，但我 运行 遇到了一些问题并且无法找到它导致的原因。问题是 setRange(0, 100) 或 setMmaximum(100) 不起作用，如果我 setValue(100) 我被填满了。第二个问题是我的进度条 运行ning 倒退了。有人可以解释我做错了什么吗？
这是我目前的情况：
main.py 文件
import wx
from src.arc import TestArc
class bandom(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title, size=(800, 600))
self.gauge = TestArc(self)
self.gauge.SetFocus()
#self.gauge.setMinimun(0)
#self.gauge.setMaximun(100)
self.gauge.setRange(0, 100)
self.gauge.setValue(10)
# timer for testing progressbar
# self.timer = wx.Timer(self)
# self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
# self.timer.Start(100)
# self.val = 0
# def OnTimer(self, evt):
# self.val += 1
# self.gauge.setValue(self.val)
#
# if self.val >= 100:
# self.val = 0
# #print(self.val)
class MyApp(wx.App):
def OnInit(self):
frame = bandom(None, -1, 'Window title here')
frame.Show(True)
self.SetTopWindow(frame)
return True
def main():
app = MyApp(0)
app.MainLoop()
if __name__ == '__main__':
main()
和arc.py文件
class TestArc(wx.Panel):
def __init__(self, *args, **kwargs):
super(TestArc, self).__init__(*args, **kwargs)
self.lineWidth = 0
self.min = 0
self.max = 100
self._value = 0
self.setText = '---'
# self.font = someFont()
self.position = wx.Rect() # self.position.Set(x, y, width, height)
self.startPoint = math.radians(0)
self.endPoint = math.radians(0)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def setRange(self, min, max):
self.min = min
self.max = max
if self.max < self.min:
self.max, self.min = self.min, self.max
if self._value < self.min:
self._value = self.min
elif self._value > self.max:
self._value = self.max
self.Refresh()
def setMinimun(self, min):
self.setRange(min, self.max)
def setMaximun(self, max):
self.setRange(self.min, max)
def setValue(self, val):
if self._value != val:
if val < self.min:
self._value = self.min
elif val > self.max:
self._value = self.max
else:
self._value = val
self.Refresh()
self.Refresh()
def setLineWidth(self, lineWidth):
self.lineWidth = lineWidth
def setPosition(self, x, y, width, height):
self.position = wx.Rect(x, y, width, height)
def OnPaint(self, event=None):
dc = wx.PaintDC(self)
gc = self.MakeGC(dc)
self.Draw(gc)
def MakeGC(self, dc):
try:
if False:
gcr = wx.GraphicsRenderer.GetCairoRenderer
gc = gcr() and gcr().CreateContext(dc)
if gc is None:
wx.MessageBox("Unable to create Cairo Context.", "Oops")
gc = wx.GraphicsContext.Create(dc)
else:
gc = wx.GraphicsContext.Create(dc)
except NotImplementedError:
dc.DrawText("This build of wxPython does not support the wx.GraphicsContext "
"family of classes.",
25, 25)
return None
return gc
def Draw(self, gc):
#middle progressbar line
radStart = math.radians(90)
radEnd = math.radians(0)
path = gc.CreatePath()
path.AddArc(80, 80, 50, radStart, radEnd, True)
pen = wx.Pen('#000000', 4)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
#progress bar
start = math.radians(90)
#r = math.radians(270)
arcStep = -270 / (self.max - self.min) * self._value
end = math.radians(arcStep)
path = gc.CreatePath()
path.AddArc(80, 80, 50, start, end)
pen = wx.Pen('#CC7F32', 15)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
这有点可怕，因为您将所有内容都偏移了 90º，因此您必须考虑到这一点。
这里什么都没有：
import wx
import math
class TestArc(wx.Panel):
def __init__(self, *args, **kwargs):
super(TestArc, self).__init__(*args, **kwargs)
self.lineWidth = 0
self.min = -90
self.max = 360
self._value = 0
self.setText = '---'
# self.font = someFont()
self.position = wx.Rect() # self.position.Set(x, y, width, height)
self.startPoint = math.radians(0)
self.endPoint = math.radians(0)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def setRange(self, min, max):
self.min = min
self.max = max
if self._value < self.min:
self._value = self.min
elif self._value > self.max:
self._value = self.max
self.Refresh()
def setMinimun(self, min):
self.setRange(min, self.max)
def setMaximun(self, max):
self.setRange(self.min, max)
def setValue(self, val):
if self._value != val:
if val < self.min:
self._value = self.min
elif val > self.max:
self._value = self.max
else:
self._value = val
self.Refresh()
def setLineWidth(self, lineWidth):
self.lineWidth = lineWidth
def setPosition(self, x, y, width, height):
self.position = wx.Rect(x, y, width, height)
def OnPaint(self, event=None):
dc = wx.PaintDC(self)
gc = self.MakeGC(dc)
self.Draw(gc)
def MakeGC(self, dc):
try:
if False:
gcr = wx.GraphicsRenderer.GetCairoRenderer
gc = gcr() and gcr().CreateContext(dc)
if gc is None:
wx.MessageBox("Unable to create Cairo Context.", "Oops")
gc = wx.GraphicsContext.Create(dc)
else:
gc = wx.GraphicsContext.Create(dc)
except NotImplementedError:
dc.DrawText("This build of wxPython does not support the wx.GraphicsContext "
"family of classes.",
25, 25)
return None
return gc
def Draw(self, gc):
#middle progressbar line
radStart = math.radians(90)
radEnd = math.radians(0)
path = gc.CreatePath()
path.AddArc(80, 80, 50, radStart, radEnd, True)
pen = wx.Pen('#000000', 4)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
#progress bar
start = math.radians(90)
#r = math.radians(270)
arcStep = 270 / (self.max - self.min) * self._value
end = math.radians(arcStep)
path = gc.CreatePath()
path.AddArc(80, 80, 50, start, end)
pen = wx.Pen('#CC7F32', 15)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
class bandom(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title, size=(800, 600))
self.gauge = TestArc(self)
self.gauge.SetFocus()
self.gauge.setMinimun(90)
self.gauge.setMaximun(360)
self.gauge.setValue(90)
# timer for testing progressbar
self.val = 90
self.timer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
self.timer.Start(100)
def OnTimer(self, evt):
self.val += 2.7
self.gauge.setValue(self.val)
if self.val >= 360:
self.val = 90
if __name__ == '__main__':
app = wx.App()
frame = bandom(None, -1, 'Window title here')
frame.Show(True)
app.MainLoop()
为了方便起见，我将它们全部放在一个文件中。
编辑：
将最大值更改为 360 并使用 270 计算弧中步长的原因是您已选择使用 3/4 圆作为仪表，并且您正在计算使用弧度增加仪表的量。您可以使用度数或弧度，但无论哪种方式，度数的计算范围为 0 到 270，弧度的计算范围为 0 到 3π/2。最初您说您需要 0 到 100 之间的比例，最简单的安排方法是 increment/decrement 仪表计数器增加 2.7 而不是 1，即 270 点行程/100（您需要的比例）。从 0 点而不是 90 点开始测量会更容易，但我假设您这样做是为了练习还是出于审美原因。
您关于需要 240 增量的最后评论与原始问题和其他评论冲突，但可以通过将仪表计数器增加 1.125 (270/240) 而不是 1 或 2.7
编辑 2：
运行 我的机器上没有此代码 "flicker"。这可能取决于您机器的速度，如果您更改传递给 wx.Timer 的值，目前为 100 毫秒或每秒 10 次，则可能会有所改善。请记住，这段代码本质上假装通过使用计时器来显示任务的进度，实际上，您将不是基于计时器而是基于实际过程的进度将值传递到仪表中。
首先，我是 python 的新手，所以请不要因为代码混乱而评判我 :)。我试图制作循环进度条，但我 运行 遇到了一些问题并且无法找到它导致的原因。问题是 setRange(0, 100) 或 setMmaximum(100) 不起作用，如果我 setValue(100) 我被填满了。第二个问题是我的进度条 运行ning 倒退了。有人可以解释我做错了什么吗？
这是我目前的情况：
main.py 文件
import wx
from src.arc import TestArc
class bandom(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title, size=(800, 600))
self.gauge = TestArc(self)
self.gauge.SetFocus()
#self.gauge.setMinimun(0)
#self.gauge.setMaximun(100)
self.gauge.setRange(0, 100)
self.gauge.setValue(10)
# timer for testing progressbar
# self.timer = wx.Timer(self)
# self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
# self.timer.Start(100)
# self.val = 0
# def OnTimer(self, evt):
# self.val += 1
# self.gauge.setValue(self.val)
#
# if self.val >= 100:
# self.val = 0
# #print(self.val)
class MyApp(wx.App):
def OnInit(self):
frame = bandom(None, -1, 'Window title here')
frame.Show(True)
self.SetTopWindow(frame)
return True
def main():
app = MyApp(0)
app.MainLoop()
if __name__ == '__main__':
main()
和arc.py文件
class TestArc(wx.Panel):
def __init__(self, *args, **kwargs):
super(TestArc, self).__init__(*args, **kwargs)
self.lineWidth = 0
self.min = 0
self.max = 100
self._value = 0
self.setText = '---'
# self.font = someFont()
self.position = wx.Rect() # self.position.Set(x, y, width, height)
self.startPoint = math.radians(0)
self.endPoint = math.radians(0)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def setRange(self, min, max):
self.min = min
self.max = max
if self.max < self.min:
self.max, self.min = self.min, self.max
if self._value < self.min:
self._value = self.min
elif self._value > self.max:
self._value = self.max
self.Refresh()
def setMinimun(self, min):
self.setRange(min, self.max)
def setMaximun(self, max):
self.setRange(self.min, max)
def setValue(self, val):
if self._value != val:
if val < self.min:
self._value = self.min
elif val > self.max:
self._value = self.max
else:
self._value = val
self.Refresh()
self.Refresh()
def setLineWidth(self, lineWidth):
self.lineWidth = lineWidth
def setPosition(self, x, y, width, height):
self.position = wx.Rect(x, y, width, height)
def OnPaint(self, event=None):
dc = wx.PaintDC(self)
gc = self.MakeGC(dc)
self.Draw(gc)
def MakeGC(self, dc):
try:
if False:
gcr = wx.GraphicsRenderer.GetCairoRenderer
gc = gcr() and gcr().CreateContext(dc)
if gc is None:
wx.MessageBox("Unable to create Cairo Context.", "Oops")
gc = wx.GraphicsContext.Create(dc)
else:
gc = wx.GraphicsContext.Create(dc)
except NotImplementedError:
dc.DrawText("This build of wxPython does not support the wx.GraphicsContext "
"family of classes.",
25, 25)
return None
return gc
def Draw(self, gc):
#middle progressbar line
radStart = math.radians(90)
radEnd = math.radians(0)
path = gc.CreatePath()
path.AddArc(80, 80, 50, radStart, radEnd, True)
pen = wx.Pen('#000000', 4)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
#progress bar
start = math.radians(90)
#r = math.radians(270)
arcStep = -270 / (self.max - self.min) * self._value
end = math.radians(arcStep)
path = gc.CreatePath()
path.AddArc(80, 80, 50, start, end)
pen = wx.Pen('#CC7F32', 15)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
这有点可怕，因为您将所有内容都偏移了 90º，因此您必须考虑到这一点。
这里什么都没有：
import wx
import math
class TestArc(wx.Panel):
def __init__(self, *args, **kwargs):
super(TestArc, self).__init__(*args, **kwargs)
self.lineWidth = 0
self.min = -90
self.max = 360
self._value = 0
self.setText = '---'
# self.font = someFont()
self.position = wx.Rect() # self.position.Set(x, y, width, height)
self.startPoint = math.radians(0)
self.endPoint = math.radians(0)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def setRange(self, min, max):
self.min = min
self.max = max
if self._value < self.min:
self._value = self.min
elif self._value > self.max:
self._value = self.max
self.Refresh()
def setMinimun(self, min):
self.setRange(min, self.max)
def setMaximun(self, max):
self.setRange(self.min, max)
def setValue(self, val):
if self._value != val:
if val < self.min:
self._value = self.min
elif val > self.max:
self._value = self.max
else:
self._value = val
self.Refresh()
def setLineWidth(self, lineWidth):
self.lineWidth = lineWidth
def setPosition(self, x, y, width, height):
self.position = wx.Rect(x, y, width, height)
def OnPaint(self, event=None):
dc = wx.PaintDC(self)
gc = self.MakeGC(dc)
self.Draw(gc)
def MakeGC(self, dc):
try:
if False:
gcr = wx.GraphicsRenderer.GetCairoRenderer
gc = gcr() and gcr().CreateContext(dc)
if gc is None:
wx.MessageBox("Unable to create Cairo Context.", "Oops")
gc = wx.GraphicsContext.Create(dc)
else:
gc = wx.GraphicsContext.Create(dc)
except NotImplementedError:
dc.DrawText("This build of wxPython does not support the wx.GraphicsContext "
"family of classes.",
25, 25)
return None
return gc
def Draw(self, gc):
#middle progressbar line
radStart = math.radians(90)
radEnd = math.radians(0)
path = gc.CreatePath()
path.AddArc(80, 80, 50, radStart, radEnd, True)
pen = wx.Pen('#000000', 4)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
#progress bar
start = math.radians(90)
#r = math.radians(270)
arcStep = 270 / (self.max - self.min) * self._value
end = math.radians(arcStep)
path = gc.CreatePath()
path.AddArc(80, 80, 50, start, end)
pen = wx.Pen('#CC7F32', 15)
pen.SetCap(wx.CAP_BUTT)
gc.SetPen(pen)
gc.SetBrush(wx.Brush('#000000', wx.TRANSPARENT))
gc.DrawPath(path)
class bandom(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title, size=(800, 600))
self.gauge = TestArc(self)
self.gauge.SetFocus()
self.gauge.setMinimun(90)
self.gauge.setMaximun(360)
self.gauge.setValue(90)
# timer for testing progressbar
self.val = 90
self.timer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
self.timer.Start(100)
def OnTimer(self, evt):
self.val += 2.7
self.gauge.setValue(self.val)
if self.val >= 360:
self.val = 90
if __name__ == '__main__':
app = wx.App()
frame = bandom(None, -1, 'Window title here')
frame.Show(True)
app.MainLoop()
为了方便起见，我将它们全部放在一个文件中。
编辑：
将最大值更改为 360 并使用 270 计算弧中步长的原因是您已选择使用 3/4 圆作为仪表，并且您正在计算使用弧度增加仪表的量。您可以使用度数或弧度，但无论哪种方式，度数的计算范围为 0 到 270，弧度的计算范围为 0 到 3π/2。最初您说您需要 0 到 100 之间的比例，最简单的安排方法是 increment/decrement 仪表计数器增加 2.7 而不是 1，即 270 点行程/100（您需要的比例）。从 0 点而不是 90 点开始测量会更容易，但我假设您这样做是为了练习还是出于审美原因。
您关于需要 240 增量的最后评论与原始问题和其他评论冲突，但可以通过将仪表计数器增加 1.125 (270/240) 而不是 1 或 2.7
编辑 2：
运行 我的机器上没有此代码 "flicker"。这可能取决于您机器的速度，如果您更改传递给 wx.Timer 的值，目前为 100 毫秒或每秒 10 次，则可能会有所改善。请记住，这段代码本质上假装通过使用计时器来显示任务的进度，实际上，您将不是基于计时器而是基于实际过程的进度将值传递到仪表中。