Description
Bug report
Bug summary
In matplotlib 3.3, the WxAgg backend NavigationToolbar2 has added a readout of the cursor position on the far right of the toolbar. This breaks the layout of custom toolbars where users have added their own buttons or other widgets. Because the cursor position is added with a stretchspacer, any widget added after it as also added to the far right of the toolbar. In addition (possibly due to adding the custom widgets after the toolbar is initially realized?), the cursor readout can appear under the custom toolbar buttons.
Here's a custom toolbar from a program I maintain using matplotlib 3.3 and 3.2.2.
With 3.2.2:
With 3.3:
Code for reproduction
import wx
import matplotlib as mpl
from matplotlib.backends.backend_wxagg import NavigationToolbar2WxAgg
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
class CustomToolbar(NavigationToolbar2WxAgg):
def __init__(self, canvas):
NavigationToolbar2WxAgg.__init__(self, canvas)
move_bitmap = wx.Bitmap('./images/move.png')
self.AddCheckTool(wx.ID_ANY, '', move_bitmap, shortHelp='Second Move Button')
class PlotFrame(wx.Frame):
def __init__(self, parent, title, *args, **kwargs):
wx.Frame.__init__(self, parent, title=title, *args, **kwargs)
self.fig = mpl.figure.Figure((5,4))
self.subplot1 = self.fig.add_subplot(111)
self.canvas = FigureCanvasWxAgg(self, wx.ID_ANY, self.fig)
self.toolbar = CustomToolbar(self.canvas)
self.toolbar.Realize()
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
sizer.Add(self.toolbar, 0, wx.GROW)
self.SetSizer(sizer)
self.Layout()
self.Fit()
self.CenterOnScreen()
self.Show(True)
if __name__ == '__main__':
app = wx.App(False)
frame = PlotFrame(None, 'My Plot Frame')
app.MainLoop()Actual outcome
Actual outcome with 3.3:
Expected outcome
Expected outcome (as with previous versions, using 3.2.2):
Matplotlib version
- Operating system: MacOS 10.14.6
- Matplotlib version: 3.3.0
- Matplotlib backend (
print(matplotlib.get_backend())): WxAgg - Python version: 3.7.6
- Other libraries: wxpython 4.0.4
Everything installed through conda. Matplotlib 3.2.2 installed from the main channel, 3.3.0 installed from conda-forge channel.