WxPython更改位图按钮的形状
嗨,我是wxPython的新手,还在学习中。我尝试使用如下特定图像制作位图按钮,例如: 关键是我希望保留按钮中图像的原始形状,例如圆形按钮,而不是矩形按钮(默认情况下) 我想知道如何做到这一点,或者是否有可能做到这一点;我确实看了一下文档,发现样式常量wx.BU_EXACTFIT删除了不必要的边界…但它仍然不是我想要的形状WxPython更改位图按钮的形状,python,wxpython,Python,Wxpython,嗨,我是wxPython的新手,还在学习中。我尝试使用如下特定图像制作位图按钮,例如: 关键是我希望保留按钮中图像的原始形状,例如圆形按钮,而不是矩形按钮(默认情况下) 我想知道如何做到这一点,或者是否有可能做到这一点;我确实看了一下文档,发现样式常量wx.BU_EXACTFIT删除了不必要的边界…但它仍然不是我想要的形状 谢谢。您可能需要为此实现一个自定义控件。我已经完成了大部分自定义wxPython控件,所以我继续为您编写了一个ShapedButton类。=) 要运行此演示,您只需要三个图像
谢谢。您可能需要为此实现一个自定义控件。我已经完成了大部分自定义wxPython控件,所以我继续为您编写了一个
ShapedButton
类。=)
要运行此演示,您只需要三个图像:
- button-normal.png
- button-pressed.png
- 按钮禁用.png
EVT_按钮
事件
享受吧
import wx
class ShapedButton(wx.PyControl):
def __init__(self, parent, normal, pressed=None, disabled=None):
super(ShapedButton, self).__init__(parent, -1, style=wx.BORDER_NONE)
self.normal = normal
self.pressed = pressed
self.disabled = disabled
self.region = wx.RegionFromBitmapColour(normal, wx.Color(0, 0, 0, 0))
self._clicked = False
self.SetBackgroundStyle(wx.BG_STYLE_CUSTOM)
self.Bind(wx.EVT_SIZE, self.on_size)
self.Bind(wx.EVT_PAINT, self.on_paint)
self.Bind(wx.EVT_LEFT_DOWN, self.on_left_down)
self.Bind(wx.EVT_LEFT_DCLICK, self.on_left_dclick)
self.Bind(wx.EVT_LEFT_UP, self.on_left_up)
self.Bind(wx.EVT_MOTION, self.on_motion)
self.Bind(wx.EVT_LEAVE_WINDOW, self.on_leave_window)
def DoGetBestSize(self):
return self.normal.GetSize()
def Enable(self, *args, **kwargs):
super(ShapedButton, self).Enable(*args, **kwargs)
self.Refresh()
def Disable(self, *args, **kwargs):
super(ShapedButton, self).Disable(*args, **kwargs)
self.Refresh()
def post_event(self):
event = wx.CommandEvent()
event.SetEventObject(self)
event.SetEventType(wx.EVT_BUTTON.typeId)
wx.PostEvent(self, event)
def on_size(self, event):
event.Skip()
self.Refresh()
def on_paint(self, event):
dc = wx.AutoBufferedPaintDC(self)
dc.SetBackground(wx.Brush(self.GetParent().GetBackgroundColour()))
dc.Clear()
bitmap = self.normal
if self.clicked:
bitmap = self.pressed or bitmap
if not self.IsEnabled():
bitmap = self.disabled or bitmap
dc.DrawBitmap(bitmap, 0, 0)
def set_clicked(self, clicked):
if clicked != self._clicked:
self._clicked = clicked
self.Refresh()
def get_clicked(self):
return self._clicked
clicked = property(get_clicked, set_clicked)
def on_left_down(self, event):
x, y = event.GetPosition()
if self.region.Contains(x, y):
self.clicked = True
def on_left_dclick(self, event):
self.on_left_down(event)
def on_left_up(self, event):
if self.clicked:
x, y = event.GetPosition()
if self.region.Contains(x, y):
self.post_event()
self.clicked = False
def on_motion(self, event):
if self.clicked:
x, y = event.GetPosition()
if not self.region.Contains(x, y):
self.clicked = False
def on_leave_window(self, event):
self.clicked = False
def main():
def on_button(event):
print 'Button was clicked.'
app = wx.PySimpleApp()
frame = wx.Frame(None, -1, 'Shaped Button Demo')
panel = wx.Panel(frame, -1)
button = ShapedButton(panel,
wx.Bitmap('button-normal.png'),
wx.Bitmap('button-pressed.png'),
wx.Bitmap('button-disabled.png'))
button.Bind(wx.EVT_BUTTON, on_button)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.AddStretchSpacer(1)
sizer.Add(button, 0, wx.ALIGN_CENTER)
sizer.AddStretchSpacer(1)
panel.SetSizer(sizer)
frame.Show()
app.MainLoop()
if __name__ == '__main__':
main()
我说不出我对你有多感激,我甚至在#wxpython上的IRC@Freenode上询问过,但没有得到任何回应……你的代码似乎工作得很好,我必须仔细看看。最初,当我在Windows上运行代码时,按钮显然是圆形的,但在Linux上,它似乎是矩形的,在尝试了代码之后,问题似乎得到了解决。非常感谢!