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qt4_editor formlayout now works with colour tuples (fixes Issue #1690) #2017

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Merged
merged 1 commit into from
May 24, 2013
Merged

qt4_editor formlayout now works with colour tuples (fixes Issue #1690) #2017

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17 changes: 15 additions & 2 deletions lib/matplotlib/backends/qt4_editor/formlayout.py
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,19 @@ def text_to_qcolor(text):
color.setNamedColor(text)
return color

def is_matplotlib_color(value):
"""
Check if value is a color passed to us from matplotlib.
It could either be a valid color string or a 3-tuple of floats between 0. and 1.
"""
if text_to_qcolor(value).isValid():
return True
if isinstance(value,tuple) and len(value)==3 and all(map(lambda v: isinstance(v,float),value)):
for c in value:
if c < 0. or c > 1.:
return False
return True
return False

class ColorLayout(QHBoxLayout):
"""Color-specialized QLineEdit layout"""
Expand Down Expand Up @@ -268,7 +281,7 @@ def setup(self):
continue
elif tuple_to_qfont(value) is not None:
field = FontLayout(value, self)
elif text_to_qcolor(value).isValid():
elif is_matplotlib_color(value):
field = ColorLayout(QColor(value), self)
elif isinstance(value, (str, unicode)):
field = QLineEdit(value, self)
Expand Down Expand Up @@ -329,7 +342,7 @@ def get(self):
continue
elif tuple_to_qfont(value) is not None:
value = field.get_font()
elif isinstance(value, (str, unicode)):
elif isinstance(value, (str, unicode)) or is_matplotlib_color(value):
value = unicode(field.text())
elif isinstance(value, (list, tuple)):
index = int(field.currentIndex())
Expand Down