/usr/lib/python2.7/dist-packages/pyqtgraph/dockarea/Container.py is in python-pyqtgraph 0.9.10-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from ..Qt import QtCore, QtGui
import weakref
class Container(object):
#sigStretchChanged = QtCore.Signal() ## can't do this here; not a QObject.
def __init__(self, area):
object.__init__(self)
self.area = area
self._container = None
self._stretch = (10, 10)
self.stretches = weakref.WeakKeyDictionary()
def container(self):
return self._container
def containerChanged(self, c):
self._container = c
def type(self):
return None
def insert(self, new, pos=None, neighbor=None):
# remove from existing parent first
new.setParent(None)
if not isinstance(new, list):
new = [new]
if neighbor is None:
if pos == 'before':
index = 0
else:
index = self.count()
else:
index = self.indexOf(neighbor)
if index == -1:
index = 0
if pos == 'after':
index += 1
for n in new:
#print "change container", n, " -> ", self
n.containerChanged(self)
#print "insert", n, " -> ", self, index
self._insertItem(n, index)
index += 1
n.sigStretchChanged.connect(self.childStretchChanged)
#print "child added", self
self.updateStretch()
def apoptose(self, propagate=True):
##if there is only one (or zero) item in this container, disappear.
cont = self._container
c = self.count()
if c > 1:
return
if self.count() == 1: ## if there is one item, give it to the parent container (unless this is the top)
if self is self.area.topContainer:
return
self.container().insert(self.widget(0), 'before', self)
#print "apoptose:", self
self.close()
if propagate and cont is not None:
cont.apoptose()
def close(self):
self.area = None
self._container = None
self.setParent(None)
def childEvent(self, ev):
ch = ev.child()
if ev.removed() and hasattr(ch, 'sigStretchChanged'):
#print "Child", ev.child(), "removed, updating", self
try:
ch.sigStretchChanged.disconnect(self.childStretchChanged)
except:
pass
self.updateStretch()
def childStretchChanged(self):
#print "child", QtCore.QObject.sender(self), "changed shape, updating", self
self.updateStretch()
def setStretch(self, x=None, y=None):
#print "setStretch", self, x, y
self._stretch = (x, y)
self.sigStretchChanged.emit()
def updateStretch(self):
###Set the stretch values for this container to reflect its contents
pass
def stretch(self):
"""Return the stretch factors for this container"""
return self._stretch
class SplitContainer(Container, QtGui.QSplitter):
"""Horizontal or vertical splitter with some changes:
- save/restore works correctly
"""
sigStretchChanged = QtCore.Signal()
def __init__(self, area, orientation):
QtGui.QSplitter.__init__(self)
self.setOrientation(orientation)
Container.__init__(self, area)
#self.splitterMoved.connect(self.restretchChildren)
def _insertItem(self, item, index):
self.insertWidget(index, item)
item.show() ## need to show since it may have been previously hidden by tab
def saveState(self):
sizes = self.sizes()
if all([x == 0 for x in sizes]):
sizes = [10] * len(sizes)
return {'sizes': sizes}
def restoreState(self, state):
sizes = state['sizes']
self.setSizes(sizes)
for i in range(len(sizes)):
self.setStretchFactor(i, sizes[i])
def childEvent(self, ev):
QtGui.QSplitter.childEvent(self, ev)
Container.childEvent(self, ev)
#def restretchChildren(self):
#sizes = self.sizes()
#tot = sum(sizes)
class HContainer(SplitContainer):
def __init__(self, area):
SplitContainer.__init__(self, area, QtCore.Qt.Horizontal)
def type(self):
return 'horizontal'
def updateStretch(self):
##Set the stretch values for this container to reflect its contents
#print "updateStretch", self
x = 0
y = 0
sizes = []
for i in range(self.count()):
wx, wy = self.widget(i).stretch()
x += wx
y = max(y, wy)
sizes.append(wx)
#print " child", self.widget(i), wx, wy
self.setStretch(x, y)
#print sizes
tot = float(sum(sizes))
if tot == 0:
scale = 1.0
else:
scale = self.width() / tot
self.setSizes([int(s*scale) for s in sizes])
class VContainer(SplitContainer):
def __init__(self, area):
SplitContainer.__init__(self, area, QtCore.Qt.Vertical)
def type(self):
return 'vertical'
def updateStretch(self):
##Set the stretch values for this container to reflect its contents
#print "updateStretch", self
x = 0
y = 0
sizes = []
for i in range(self.count()):
wx, wy = self.widget(i).stretch()
y += wy
x = max(x, wx)
sizes.append(wy)
#print " child", self.widget(i), wx, wy
self.setStretch(x, y)
#print sizes
tot = float(sum(sizes))
if tot == 0:
scale = 1.0
else:
scale = self.height() / tot
self.setSizes([int(s*scale) for s in sizes])
class TContainer(Container, QtGui.QWidget):
sigStretchChanged = QtCore.Signal()
def __init__(self, area):
QtGui.QWidget.__init__(self)
Container.__init__(self, area)
self.layout = QtGui.QGridLayout()
self.layout.setSpacing(0)
self.layout.setContentsMargins(0,0,0,0)
self.setLayout(self.layout)
self.hTabLayout = QtGui.QHBoxLayout()
self.hTabBox = QtGui.QWidget()
self.hTabBox.setLayout(self.hTabLayout)
self.hTabLayout.setSpacing(2)
self.hTabLayout.setContentsMargins(0,0,0,0)
self.layout.addWidget(self.hTabBox, 0, 1)
self.stack = QtGui.QStackedWidget()
self.layout.addWidget(self.stack, 1, 1)
self.stack.childEvent = self.stackChildEvent
self.setLayout(self.layout)
for n in ['count', 'widget', 'indexOf']:
setattr(self, n, getattr(self.stack, n))
def _insertItem(self, item, index):
if not isinstance(item, Dock.Dock):
raise Exception("Tab containers may hold only docks, not other containers.")
self.stack.insertWidget(index, item)
self.hTabLayout.insertWidget(index, item.label)
#QtCore.QObject.connect(item.label, QtCore.SIGNAL('clicked'), self.tabClicked)
item.label.sigClicked.connect(self.tabClicked)
self.tabClicked(item.label)
def tabClicked(self, tab, ev=None):
if ev is None or ev.button() == QtCore.Qt.LeftButton:
for i in range(self.count()):
w = self.widget(i)
if w is tab.dock:
w.label.setDim(False)
self.stack.setCurrentIndex(i)
else:
w.label.setDim(True)
def raiseDock(self, dock):
"""Move *dock* to the top of the stack"""
self.stack.currentWidget().label.setDim(True)
self.stack.setCurrentWidget(dock)
dock.label.setDim(False)
def type(self):
return 'tab'
def saveState(self):
return {'index': self.stack.currentIndex()}
def restoreState(self, state):
self.stack.setCurrentIndex(state['index'])
def updateStretch(self):
##Set the stretch values for this container to reflect its contents
x = 0
y = 0
for i in range(self.count()):
wx, wy = self.widget(i).stretch()
x = max(x, wx)
y = max(y, wy)
self.setStretch(x, y)
def stackChildEvent(self, ev):
QtGui.QStackedWidget.childEvent(self.stack, ev)
Container.childEvent(self, ev)
from . import Dock
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