Merge pull request #1958 from midichef/graph_label_fullwidth

[graph] fix legend display of full-width characters

visidata/canvas.py

@@ -305,7 +305,7 @@ def _overlaps(a, b):
  for o, fldraw in line:
  if fldraw:
  char_x, char_y, txt, attr, row = o
- clipdraw(scr, char_y, char_x, txt, attr, len(txt))
+ clipdraw(scr, char_y, char_x, txt, attr, dispwidth(txt))
 
 
 # - has a cursor, of arbitrary position and width/height (not restricted to current zoom)
@@ -359,7 +359,7 @@ def plotColor(self, k):
  del self.legends[lastlegend]
  legend = '[other]'
 
- self.legendwidth = max(self.legendwidth, len(legend))
+ self.legendwidth = max(self.legendwidth, dispwidth(legend))
  self.legends[legend] = attr
  self.plotAttrs[k] = attr
  self.plotlegends()