本文整理汇总了Python中PyQt4.QtGui.QGraphicsTextItem.textWidth方法的典型用法代码示例。如果您正苦于以下问题：Python QGraphicsTextItem.textWidth方法的具体用法？Python QGraphicsTextItem.textWidth怎么用？Python QGraphicsTextItem.textWidth使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt4.QtGui.QGraphicsTextItem的用法示例。
在下文中一共展示了QGraphicsTextItem.textWidth方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: NodeItem
# 需要导入模块: from PyQt4.QtGui import QGraphicsTextItem [as 别名]
# 或者: from PyQt4.QtGui.QGraphicsTextItem import textWidth [as 别名]
#.........这里部分代码省略.........
"""
Set the anchor rotation.
"""
self.inputAnchorItem.setRotation(angle)
self.outputAnchorItem.setRotation(angle)
self.anchorGeometryChanged.emit()
def anchorRotation(self):
"""
Return the anchor rotation.
"""
return self.inputAnchorItem.rotation()
def boundingRect(self):
# TODO: Important because of this any time the child
# items change geometry the self.prepareGeometryChange()
# needs to be called.
return self.childrenBoundingRect()
def shape(self):
# Shape for mouse hit detection.
# TODO: Should this return the union of all child items?
return self.shapeItem.shape()
def __updateTitleText(self):
"""
Update the title text item.
"""
title_safe = escape(self.title())
if self.progress() > 0:
text = '<div align="center">%s<br/>%i%%</div>' % \
(title_safe, int(self.progress()))
else:
text = '<div align="center">%s</div>' % \
(title_safe)
# The NodeItems boundingRect could change.
self.prepareGeometryChange()
self.captionTextItem.setHtml(text)
self.captionTextItem.document().adjustSize()
width = self.captionTextItem.textWidth()
self.captionTextItem.setPos(-width / 2.0, 33)
def __updateMessages(self):
"""
Update message items (position, visibility and tool tips).
"""
items = [self.errorItem, self.warningItem, self.infoItem]
messages = [self.__error, self.__warning, self.__info]
for message, item in zip(messages, items):
item.setVisible(bool(message))
item.setToolTip(message or "")
shown = [item for item in items if item.isVisible()]
count = len(shown)
if count:
spacing = 3
rects = [item.boundingRect() for item in shown]
width = sum(rect.width() for rect in rects)
width += spacing * max(0, count - 1)
height = max(rect.height() for rect in rects)
origin = self.shapeItem.boundingRect().top() - spacing - height
origin = QPointF(-width / 2, origin)
for item, rect in zip(shown, rects):
item.setPos(origin)
origin = origin + QPointF(rect.width() + spacing, 0)
def mousePressEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.mousePressEvent(self, event)
else:
event.ignore()
def mouseDoubleClickEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
QGraphicsObject.mouseDoubleClickEvent(self, event)
QTimer.singleShot(0, self.activated.emit)
else:
event.ignore()
def contextMenuEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.contextMenuEvent(self, event)
else:
event.ignore()
def focusInEvent(self, event):
self.shapeItem.setHasFocus(True)
return QGraphicsObject.focusInEvent(self, event)
def focusOutEvent(self, event):
self.shapeItem.setHasFocus(False)
return QGraphicsObject.focusOutEvent(self, event)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSelectedChange:
self.shapeItem.setSelected(value.toBool())
elif change == QGraphicsItem.ItemPositionHasChanged:
self.positionChanged.emit()
return QGraphicsObject.itemChange(self, change, value)