本文整理汇总了Python中PyQt4.QtGui.QPolygonF.clear方法的典型用法代码示例。如果您正苦于以下问题：Python QPolygonF.clear方法的具体用法？Python QPolygonF.clear怎么用？Python QPolygonF.clear使用的例子？那么, 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.QPolygonF的用法示例。
在下文中一共展示了QPolygonF.clear方法的5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: paintEvent
# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import clear [as 别名]
def paintEvent(self, event):
page_bottom = self.edit.viewport().height()
font_metrics = QFontMetrics(self.edit.document().defaultFont())
current_block = self.edit.document().findBlock(
self.edit.textCursor().position())
pattern = self.pat if self.edit.lang == "python" else self.patNotPython
painter = QPainter(self)
background = resources.CUSTOM_SCHEME.get('sidebar-background',
resources.COLOR_SCHEME['sidebar-background'])
foreground = resources.CUSTOM_SCHEME.get('sidebar-foreground',
resources.COLOR_SCHEME['sidebar-foreground'])
painter.fillRect(self.rect(), QColor(background))
block = self.edit.firstVisibleBlock()
viewport_offset = self.edit.contentOffset()
line_count = block.blockNumber()
painter.setFont(self.edit.document().defaultFont())
while block.isValid():
line_count += 1
# The top left position of the block in the document
position = self.edit.blockBoundingGeometry(block).topLeft() + \
viewport_offset
# Check if the position of the block is outside of the visible area
if position.y() > page_bottom:
break
# Set the Painter Pen depending on special lines
painter.setPen(QColor(foreground))
error = False
checkers = sorted(self._neditable.registered_checkers,
key=lambda x: x[2], reverse=True)
for items in checkers:
checker, color, _ = items
if (line_count - 1) in checker.checks:
painter.setPen(QColor(color))
font = painter.font()
font.setItalic(True)
font.setUnderline(True)
painter.setFont(font)
error = True
break
# We want the line number for the selected line to be bold.
bold = False
if block == current_block:
bold = True
font = painter.font()
font.setBold(True)
painter.setFont(font)
# Draw the line number right justified at the y position of the
# line. 3 is a magic padding number. drawText(x, y, text).
if block.isVisible():
painter.drawText(self.width() - self.foldArea -
font_metrics.width(str(line_count)) - 3,
round(position.y()) + font_metrics.ascent() +
font_metrics.descent() - 1,
str(line_count))
# Remove the bold style if it was set previously.
if bold:
font = painter.font()
font.setBold(False)
painter.setFont(font)
if error:
font = painter.font()
font.setItalic(False)
font.setUnderline(False)
painter.setFont(font)
block = block.next()
self.highest_line = line_count
#Code Folding
xofs = self.width() - self.foldArea
painter.fillRect(xofs, 0, self.foldArea, self.height(),
QColor(resources.CUSTOM_SCHEME.get('fold-area',
resources.COLOR_SCHEME['fold-area'])))
if self.foldArea != self.rightArrowIcon.width():
polygon = QPolygonF()
self.rightArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.rightArrowIcon.fill(Qt.transparent)
self.downArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.downArrowIcon.fill(Qt.transparent)
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.25))
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.75))
polygon.append(QPointF(self.foldArea * 0.8, self.foldArea * 0.5))
iconPainter = QPainter(self.rightArrowIcon)
iconPainter.setRenderHint(QPainter.Antialiasing)
iconPainter.setPen(Qt.NoPen)
iconPainter.setBrush(QColor(
resources.CUSTOM_SCHEME.get('fold-arrow',
resources.COLOR_SCHEME['fold-arrow'])))
iconPainter.drawPolygon(polygon)
polygon.clear()
#.........这里部分代码省略.........
示例2: Pointer
# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import clear [as 别名]
#.........这里部分代码省略.........
else:
# Start von unterer Seite
pStart = QPointF(pM1.x() + (self.fromView.size().height() / 2) * (deltaX / deltaY),
pM1.y() + self.fromView.size().height() / 2)
if deltaX / deltaY >= self.toView.size().width() / self.toView.size().height():
# Ende bei linker Seite
pEnd = QPointF(pM2.x() - self.toView.size().width() / 2,
pM2.y() - (self.toView.size().width() / 2) * (deltaY / deltaX))
else:
# Ende bei oberer Seite
pEnd = QPointF(pM2.x() - (self.toView.size().height() / 2) * (deltaX / deltaY),
pM2.y() - self.toView.size().height() / 2)
else:
# rechts oben
if deltaX / deltaY * -1 >= self.fromView.size().width() / self.fromView.size().height():
# Start von rechter Seite
pStart = QPointF(pM1.x() + self.fromView.size().width() / 2,
pM1.y() + (self.fromView.size().width() / 2) * (deltaY / deltaX))
else:
# Start von oberer Seite
pStart = QPointF(pM1.x() - (self.fromView.size().height() / 2) * (deltaX / deltaY),
pM1.y() - self.fromView.size().height() / 2)
if deltaX / deltaY * -1 >= self.toView.size().width() / self.toView.size().height():
# Ende bei linker Seite
pEnd = QPointF(pM2.x() - self.toView.size().width() / 2,
pM2.y() - (self.toView.size().width() / 2) * (deltaY / deltaX))
else:
# Ende bei unterer Seite
pEnd = QPointF(pM2.x() + (self.toView.size().height() / 2) * (deltaX / deltaY),
pM2.y() + self.toView.size().height() / 2)
else:
if deltaY >= 0:
# links unten
if deltaX / deltaY * -1 >= self.fromView.size().width() / self.fromView.size().height():
# Start von linker Seite
pStart = QPointF(pM1.x() - self.fromView.size().width() / 2,
pM1.y() - (self.fromView.size().width() / 2) * (deltaY / deltaX))
else:
# Start von unterer Seite
pStart = QPointF(pM1.x() + (self.fromView.size().height() / 2) * (deltaX / deltaY),
pM1.y() + self.fromView.size().height() / 2)
if deltaX / deltaY * -1 >= self.toView.size().width() / self.toView.size().height():
# Ende bei rechten Seite
pEnd = QPointF(pM2.x() + self.toView.size().width() / 2,
pM2.y() + (self.toView.size().width() / 2) * (deltaY / deltaX))
else:
# Ende bei oberer Seite
pEnd = QPointF(pM2.x() - (self.toView.size().height() / 2) * (deltaX / deltaY),
pM2.y() - self.toView.size().height() / 2)
else:
# links oben
if deltaX / deltaY >= self.fromView.size().width() / self.fromView.size().height():
# Start von linker Seite
pStart = QPointF(pM1.x() - self.fromView.size().width() / 2,
pM1.y() - (self.fromView.size().width() / 2) * (deltaY / deltaX))
else:
# Start von oberer Seite
pStart = QPointF(pM1.x() - (self.fromView.size().height() / 2) * (deltaX / deltaY),
pM1.y() - self.fromView.size().height() / 2)
if deltaX / deltaY >= self.toView.size().width() / self.toView.size().height():
# Ende bei rechter Seite
pEnd = QPointF(pM2.x() + self.toView.size().width() / 2,
pM2.y() + (self.toView.size().width() / 2) * (deltaY / deltaX))
else:
# Ende bei unterer Seite
pEnd = QPointF(pM2.x() + (self.toView.size().height() / 2) * (deltaX / deltaY),
pM2.y() + self.toView.size().height() / 2)
self.setLine(QLineF(pEnd, pStart))
if self.line().length() != 0:
angle = math.acos(self.line().dx() / self.line().length())
if self.line().dy() >= 0:
angle = math.pi * 2 - angle
arrowP1 = self.line().p1() + QPointF(math.sin(angle + math.pi / 2.5) * self.arrowSize, math.cos(angle + math.pi / 2.5) * self.arrowSize)
arrowP2 = self.line().p1() + QPointF(math.sin(angle + math.pi - math.pi / 2.5) * self.arrowSize, math.cos(angle + math.pi - math.pi / 2.5) * self.arrowSize)
self.arrowhead.clear()
self.arrowhead.append(self.line().p1())
self.arrowhead.append(arrowP1)
self.arrowhead.append(arrowP2)
painter.setBrush(QBrush(self.bgcolor))
painter.drawLine(self.line())
painter.drawPolygon(self.arrowhead)
def delete(self):
""" removes the pointer from the DataGraph """
self.toView.incomingPointers.remove(self)
self.fromView.outgoingPointers.remove(self)
self.distributedObjects.datagraphController.removePointer(self)
def setX(self, _):
logging.error("Ignoring setting our Pointer's x position")
def setY(self, _):
logging.error("Ignoring setting our Pointer's y position")示例3: paintEvent
# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import clear [as 别名]
def paintEvent(self, event):
page_bottom = self.edit.viewport().height()
font_metrics = QFontMetrics(self.edit.document().defaultFont())
current_block = self.edit.document().findBlock(
self.edit.textCursor().position())
painter = QPainter(self)
painter.fillRect(self.rect(), Qt.lightGray)
block = self.edit.firstVisibleBlock()
viewport_offset = self.edit.contentOffset()
line_count = block.blockNumber()
painter.setFont(self.edit.document().defaultFont())
while block.isValid():
line_count += 1
# The top left position of the block in the document
position = self.edit.blockBoundingGeometry(block).topLeft() + \
viewport_offset
# Check if the position of the block is outside of the visible area
if position.y() > page_bottom:
break
# Set the Painter Pen depending on special lines
error = False
if settings.CHECK_STYLE and \
((line_count - 1) in self._pep8Lines):
painter.setPen(Qt.darkYellow)
font = painter.font()
font.setItalic(True)
font.setUnderline(True)
painter.setFont(font)
error = True
elif settings.FIND_ERRORS and \
((line_count - 1) in self._errorsLines):
painter.setPen(Qt.red)
font = painter.font()
font.setItalic(True)
font.setUnderline(True)
painter.setFont(font)
error = True
else:
painter.setPen(Qt.black)
# We want the line number for the selected line to be bold.
bold = False
if block == current_block:
bold = True
font = painter.font()
font.setBold(True)
painter.setFont(font)
# Draw the line number right justified at the y position of the
# line. 3 is a magic padding number. drawText(x, y, text).
if block.isVisible():
painter.drawText(self.width() - self.foldArea - \
font_metrics.width(str(line_count)) - 3,
round(position.y()) + font_metrics.ascent() + \
font_metrics.descent() - 1,
str(line_count))
# Remove the bold style if it was set previously.
if bold:
font = painter.font()
font.setBold(False)
painter.setFont(font)
if error:
font = painter.font()
font.setItalic(False)
font.setUnderline(False)
painter.setFont(font)
block = block.next()
self.highest_line = line_count
#Code Folding
xofs = self.width() - self.foldArea
painter.fillRect(xofs, 0, self.foldArea, self.height(),
QColor(resources.CUSTOM_SCHEME.get('fold-area',
resources.COLOR_SCHEME['fold-area'])))
if self.foldArea != self.rightArrowIcon.width():
polygon = QPolygonF()
self.rightArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.rightArrowIcon.fill(Qt.transparent)
self.downArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.downArrowIcon.fill(Qt.transparent)
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.25))
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.75))
polygon.append(QPointF(self.foldArea * 0.8, self.foldArea * 0.5))
iconPainter = QPainter(self.rightArrowIcon)
iconPainter.setRenderHint(QPainter.Antialiasing)
iconPainter.setPen(Qt.NoPen)
iconPainter.setBrush(QColor(
resources.CUSTOM_SCHEME.get('fold-arrow',
resources.COLOR_SCHEME['fold-arrow'])))
iconPainter.drawPolygon(polygon)
polygon.clear()
#.........这里部分代码省略.........
示例4: PositionMarker
# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import clear [as 别名]
class PositionMarker(QgsMapCanvasItem):
'''
classdocs
'''
def __init__(self, canvas, params={}):
'''
Constructor
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
:param params: A dictionary defining all the properties of the position marker
:type params: dictionary
'''
self.canvas = canvas
self.type = params.get('type', 'BOX').upper()
self.size = int(params.get('size', 16))
self.bounding = 1.414213562 * self.size
self.length = float(params.get('length', 98.0))
self.width = float(params.get('width', 17.0))
self.shape = params.get('shape', ((0.0, -0.5), (0.5, -0.3), (0.5, 0.5), (-0.5, 0.50), (-0.5, -0.3)))
s = (self.size - 1) / 2
self.paintShape = QPolygonF([QPointF(-s, -s), QPointF(s, -s), QPointF(s, s), QPointF(-s, s)])
self.color = self.getColor(params.get('color', 'black'))
self.fillColor = self.getColor(params.get('fillColor', 'lime'))
self.penWidth = int(params.get('penWidth', 1))
if self.type in ('CROSS', 'X'):
self.penWidth = 5
self.trackLen = int(params.get('trackLength', 100))
self.trackColor = self.getColor(params.get('trackColor', self.fillColor))
self.track = deque()
self.pos = None
self.heading = 0
super(PositionMarker, self).__init__(canvas)
self.setZValue(int(params.get('zValue', 100)))
self.distArea = QgsDistanceArea()
self.distArea.setEllipsoid(u'WGS84')
self.distArea.setEllipsoidalMode(True)
self.updateSize()
def properties(self):
return {'type': self.type,
'size': self.size,
'length': self.length,
'width': self.width,
'shape': self.shape,
'color': self.color.rgba(),
'fillColor': self.fillColor.rgba(),
'penWidth': self.penWidth,
'trackLength': self.trackLen,
'trackColor' : self.trackColor.rgba(),
'zValue': self.zValue()}
def setMapPosition(self, pos):
if self.pos != pos:
self.updateTrack()
self.pos = pos
self.setPos(self.toCanvasCoordinates(self.pos))
self.update()
def newHeading(self, heading):
if self.heading != heading:
self.heading = heading
self.setRotation(self.canvas.rotation() + self.heading)
self.update()
def resetPosition(self):
self.pos = None
def updatePosition(self):
if self.pos:
self.prepareGeometryChange()
self.updateSize()
self.setPos(self.toCanvasCoordinates(self.pos))
self.setRotation(self.canvas.rotation() + self.heading)
self.update()
def updateSize(self):
if self.type != 'SHAPE':
return
s = self.canvas.mapSettings()
self.distArea.setSourceCrs(s.destinationCrs())
try:
p1 = self.toMapCoordinates(QPoint(0, 0))
p2 = self.toMapCoordinates(QPoint(0, 100))
l = self.distArea.measureLine(p1, p2)
f = 100 / l
except:
f = s.outputDpi() / 0.0254 / s.scale()
paintLength = max(self.length * f, 50)
paintWidth = paintLength * self.width / self.length
self.paintShape.clear()
for v in self.shape:
self.paintShape << QPointF(v[0] * paintWidth, v[1] * paintLength)
self.size = max(paintLength, paintWidth)
self.bounding = sqrt(pow(paintLength, 2) + pow(paintLength, 2))
def updateTrack(self):
if self.pos and self.trackLen:
#.........这里部分代码省略.........
示例5: paintEvent
# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import clear [as 别名]
#.........这里部分代码省略.........
block = block.next()
self.highest_line = line_count
# Code Folding
xofs = self.width() - self.foldArea
painter.fillRect(
xofs,
0,
self.foldArea,
self.height(),
QColor(resources.CUSTOM_SCHEME.get("fold-area", resources.COLOR_SCHEME["fold-area"])),
)
if self.foldArea != self.rightArrowIcon.width():
polygon = QPolygonF()
self.rightArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.rightArrowIcon.fill(Qt.transparent)
self.downArrowIcon = QPixmap(self.foldArea, self.foldArea)
self.downArrowIcon.fill(Qt.transparent)
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.25))
polygon.append(QPointF(self.foldArea * 0.4, self.foldArea * 0.75))
polygon.append(QPointF(self.foldArea * 0.8, self.foldArea * 0.5))
iconPainter = QPainter(self.rightArrowIcon)
iconPainter.setRenderHint(QPainter.Antialiasing)
iconPainter.setPen(Qt.NoPen)
iconPainter.setBrush(
QColor(resources.CUSTOM_SCHEME.get("fold-arrow", resources.COLOR_SCHEME["fold-arrow"]))
)
iconPainter.drawPolygon(polygon)
polygon.clear()
polygon.append(QPointF(self.foldArea * 0.25, self.foldArea * 0.4))
polygon.append(QPointF(self.foldArea * 0.75, self.foldArea * 0.4))
polygon.append(QPointF(self.foldArea * 0.5, self.foldArea * 0.8))
iconPainter = QPainter(self.downArrowIcon)
iconPainter.setRenderHint(QPainter.Antialiasing)
iconPainter.setPen(Qt.NoPen)
iconPainter.setBrush(
QColor(resources.CUSTOM_SCHEME.get("fold-arrow", resources.COLOR_SCHEME["fold-arrow"]))
)
iconPainter.drawPolygon(polygon)
if self._firstPaintEvent is True:
block = self.edit.document().findBlock(0)
else:
block = self.edit.firstVisibleBlock()
# block = self.edit.firstVisibleBlock()
line_count = block.blockNumber()
while block.isValid():
# while line_count < 5000:
line_count += 1
position = self.edit.blockBoundingGeometry(block).topLeft() + viewport_offset
# Check if the position of the block is outside of the visible area
if position.y() > page_bottom:
break
# block.isVisible() and
if block.isVisible() and pat.match(block.text()) and block not in self._foldedAlexaObject:
self._fold(line_count)
self._foldedAlexaObject.append(block)
self._alexaObjectsPresent = True
elif block.isVisible() and patAlexaAppImage.match(block.text()) and block not in self._foldedAlexaImage:
self._fold(line_count)