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PlotItem.showValues fixed (was not implemented before).

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This commit is contained in:
JosefNevrly 2014-03-16 10:20:42 +01:00
parent c8f03e828e
commit 22ecd3cc41
1 changed files with 83 additions and 83 deletions
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166
pyqtgraph/graphicsItems/AxisItem.py
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@ -775,92 +775,92 @@ class AxisItem(GraphicsWidget):
textSize2 = 0 textSize2 = 0
textRects = [] textRects = []
textSpecs = [] ## list of draw textSpecs = [] ## list of draw
textSize2 = 0 if self.showValues:
for i in range(len(tickLevels)): for i in range(len(tickLevels)):
## Get the list of strings to display for this level ## Get the list of strings to display for this level
if tickStrings is None: if tickStrings is None:
spacing, values = tickLevels[i] spacing, values = tickLevels[i]
strings = self.tickStrings(values, self.autoSIPrefixScale * self.scale, spacing) strings = self.tickStrings(values, self.autoSIPrefixScale * self.scale, spacing)
else:
strings = tickStrings[i]
if len(strings) == 0:
continue
## ignore strings belonging to ticks that were previously ignored
for j in range(len(strings)):
if tickPositions[i][j] is None:
strings[j] = None
## Measure density of text; decide whether to draw this level
rects = []
for s in strings:
if s is None:
rects.append(None)
else: else:
br = p.boundingRect(QtCore.QRectF(0, 0, 100, 100), QtCore.Qt.AlignCenter, asUnicode(s)) strings = tickStrings[i]
## boundingRect is usually just a bit too large
## (but this probably depends on per-font metrics?)
br.setHeight(br.height() * 0.8)
rects.append(br) if len(strings) == 0:
textRects.append(rects[-1])
if i > 0: ## always draw top level
## measure all text, make sure there's enough room
if axis == 0:
textSize = np.sum([r.height() for r in textRects])
textSize2 = np.max([r.width() for r in textRects]) if textRects else 0
else:
textSize = np.sum([r.width() for r in textRects])
textSize2 = np.max([r.height() for r in textRects]) if textRects else 0
## If the strings are too crowded, stop drawing text now.
## We use three different crowding limits based on the number
## of texts drawn so far.
textFillRatio = float(textSize) / lengthInPixels
finished = False
for nTexts, limit in self.style['textFillLimits']:
if len(textSpecs) >= nTexts and textFillRatio >= limit:
finished = True
break
if finished:
break
#spacing, values = tickLevels[best]
#strings = self.tickStrings(values, self.scale, spacing)
for j in range(len(strings)):
vstr = strings[j]
if vstr is None: ## this tick was ignored because it is out of bounds
continue continue
vstr = asUnicode(vstr)
x = tickPositions[i][j] ## ignore strings belonging to ticks that were previously ignored
#textRect = p.boundingRect(QtCore.QRectF(0, 0, 100, 100), QtCore.Qt.AlignCenter, vstr) for j in range(len(strings)):
textRect = rects[j] if tickPositions[i][j] is None:
height = textRect.height() strings[j] = None
width = textRect.width()
#self.textHeight = height ## Measure density of text; decide whether to draw this level
offset = max(0,self.tickLength) + textOffset rects = []
if self.orientation == 'left': for s in strings:
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignRight|QtCore.Qt.AlignVCenter if s is None:
rect = QtCore.QRectF(tickStop-offset-width, x-(height/2), width, height) rects.append(None)
elif self.orientation == 'right': else:
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignLeft|QtCore.Qt.AlignVCenter br = p.boundingRect(QtCore.QRectF(0, 0, 100, 100), QtCore.Qt.AlignCenter, asUnicode(s))
rect = QtCore.QRectF(tickStop+offset, x-(height/2), width, height) ## boundingRect is usually just a bit too large
elif self.orientation == 'top': ## (but this probably depends on per-font metrics?)
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignCenter|QtCore.Qt.AlignBottom br.setHeight(br.height() * 0.8)
rect = QtCore.QRectF(x-width/2., tickStop-offset-height, width, height)
elif self.orientation == 'bottom': rects.append(br)
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignCenter|QtCore.Qt.AlignTop textRects.append(rects[-1])
rect = QtCore.QRectF(x-width/2., tickStop+offset, width, height)
if i > 0: ## always draw top level
#p.setPen(self.pen()) ## measure all text, make sure there's enough room
#p.drawText(rect, textFlags, vstr) if axis == 0:
textSpecs.append((rect, textFlags, vstr)) textSize = np.sum([r.height() for r in textRects])
profiler('compute text') textSize2 = np.max([r.width() for r in textRects]) if textRects else 0
else:
## update max text size if needed. textSize = np.sum([r.width() for r in textRects])
self._updateMaxTextSize(textSize2) textSize2 = np.max([r.height() for r in textRects]) if textRects else 0
## If the strings are too crowded, stop drawing text now.
## We use three different crowding limits based on the number
## of texts drawn so far.
textFillRatio = float(textSize) / lengthInPixels
finished = False
for nTexts, limit in self.style['textFillLimits']:
if len(textSpecs) >= nTexts and textFillRatio >= limit:
finished = True
break
if finished:
break
#spacing, values = tickLevels[best]
#strings = self.tickStrings(values, self.scale, spacing)
for j in range(len(strings)):
vstr = strings[j]
if vstr is None: ## this tick was ignored because it is out of bounds
continue
vstr = asUnicode(vstr)
x = tickPositions[i][j]
#textRect = p.boundingRect(QtCore.QRectF(0, 0, 100, 100), QtCore.Qt.AlignCenter, vstr)
textRect = rects[j]
height = textRect.height()
width = textRect.width()
#self.textHeight = height
offset = max(0,self.tickLength) + textOffset
if self.orientation == 'left':
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignRight|QtCore.Qt.AlignVCenter
rect = QtCore.QRectF(tickStop-offset-width, x-(height/2), width, height)
elif self.orientation == 'right':
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignLeft|QtCore.Qt.AlignVCenter
rect = QtCore.QRectF(tickStop+offset, x-(height/2), width, height)
elif self.orientation == 'top':
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignCenter|QtCore.Qt.AlignBottom
rect = QtCore.QRectF(x-width/2., tickStop-offset-height, width, height)
elif self.orientation == 'bottom':
textFlags = QtCore.Qt.TextDontClip|QtCore.Qt.AlignCenter|QtCore.Qt.AlignTop
rect = QtCore.QRectF(x-width/2., tickStop+offset, width, height)
#p.setPen(self.pen())
#p.drawText(rect, textFlags, vstr)
textSpecs.append((rect, textFlags, vstr))
profiler('compute text')
## update max text size if needed.
self._updateMaxTextSize(textSize2)
return (axisSpec, tickSpecs, textSpecs) return (axisSpec, tickSpecs, textSpecs)