QPainter ¶

函数 ¶

• def background ()
• def backgroundMode ()
• def begin (arg__1)
• def beginNativePainting ()
• def boundingRect (rect, flags, text)
• def boundingRect (rect, flags, text)
• def boundingRect (rect, text[, o=QTextOption()])
• def boundingRect (x, y, w, h, flags, text)
• def brush ()
• def brushOrigin ()
• def clipBoundingRect ()
• def clipPath ()
• def clipRegion ()
• def combinedMatrix ()
• def combinedTransform ()
• def compositionMode ()
• def device ()
• def deviceMatrix ()
• def deviceTransform ()
• def drawArc (arg__1, a, alen)
• def drawArc (rect, a, alen)
• def drawArc (x, y, w, h, a, alen)
• def drawChord (arg__1, a, alen)
• def drawChord (rect, a, alen)
• def drawChord (x, y, w, h, a, alen)
• def drawConvexPolygon (arg__1)
• def drawConvexPolygon (arg__1)
• def drawConvexPolygon (polygon)
• def drawConvexPolygon (polygon)
• def drawEllipse (center, rx, ry)
• def drawEllipse (center, rx, ry)
• def drawEllipse (r)
• def drawEllipse (r)
• def drawEllipse (x, y, w, h)
• def drawImage (p, image)
• def drawImage (p, image)
• def drawImage (p, image, sr[, flags=Qt.AutoColor])
• def drawImage (p, image, sr[, flags=Qt.AutoColor])
• def drawImage (r, image)
• def drawImage (r, image)
• def drawImage (targetRect, image, sourceRect[, flags=Qt.AutoColor])
• def drawImage (targetRect, image, sourceRect[, flags=Qt.AutoColor])
• def drawImage (x, y, image[, sx=0[, sy=0[, sw=-1[, sh=-1[, flags=Qt.AutoColor]]]]])
• def drawLine (line)
• def drawLine (line)
• def drawLine (p1, p2)
• def drawLine (p1, p2)
• def drawLine (x1, y1, x2, y2)
• def drawLines (lines)
• def drawLines (lines)
• def drawLines (pointPairs)
• def drawLines (pointPairs)
• def drawPath (path)
• def drawPicture (p, picture)
• def drawPicture (p, picture)
• def drawPicture (x, y, picture)
• def drawPie (arg__1, a, alen)
• def drawPie (rect, a, alen)
• def drawPie (x, y, w, h, a, alen)
• def drawPixmap (p, pm)
• def drawPixmap (p, pm)
• def drawPixmap (p, pm, sr)
• def drawPixmap (p, pm, sr)
• def drawPixmap (r, pm)
• def drawPixmap (targetRect, pixmap, sourceRect)
• def drawPixmap (targetRect, pixmap, sourceRect)
• def drawPixmap (x, y, pm)
• def drawPixmap (x, y, pm, sx, sy, sw, sh)
• def drawPixmap (x, y, w, h, pm)
• def drawPixmap (x, y, w, h, pm, sx, sy, sw, sh)
• def drawPixmapFragments (fragments, fragmentCount, pixmap[, hints=0])
• def drawPixmapFragments (targetRects, sourceRects, fragmentCount, pixmap[, hints=0])
• def drawPoint (p)
• def drawPoint (pt)
• def drawPoint (x, y)
• def drawPoints (arg__1)
• def drawPoints (arg__1)
• def drawPoints (points)
• def drawPoints (points)
• def drawPolygon (arg__1, arg__2)
• def drawPolygon (arg__1, arg__2)
• def drawPolygon (polygon[, fillRule=Qt.OddEvenFill])
• def drawPolygon (polygon[, fillRule=Qt.OddEvenFill])
• def drawPolyline (arg__1)
• def drawPolyline (arg__1)
• def drawPolyline (polygon)
• def drawPolyline (polyline)
• def drawRect (rect)
• def drawRect (rect)
• def drawRect (x1, y1, w, h)
• def drawRects (rectangles)
• def drawRects (rectangles)
• def drawRoundRect (r[, xround=25[, yround=25]])
• def drawRoundRect (r[, xround=25[, yround=25]])
• def drawRoundRect (x, y, w, h[, xRound=25[, yRound=25]])
• def drawRoundedRect (rect, xRadius, yRadius[, mode=Qt.AbsoluteSize])
• def drawRoundedRect (rect, xRadius, yRadius[, mode=Qt.AbsoluteSize])
• def drawRoundedRect (x, y, w, h, xRadius, yRadius[, mode=Qt.AbsoluteSize])
• def drawText (p, s)
• def drawText (p, s)
• def drawText (r, flags, text)
• def drawText (r, flags, text)
• def drawText (r, text[, o=QTextOption()])
• def drawText (x, y, s)
• def drawText (x, y, w, h, flags, text)
• def drawTextItem (p, ti)
• def drawTextItem (p, ti)
• def drawTextItem (x, y, ti)
• def drawTiledPixmap (arg__1, arg__2[, pos=QPoint()])
• def drawTiledPixmap (rect, pm[, offset=QPointF()])
• def drawTiledPixmap (x, y, w, h, arg__5[, sx=0[, sy=0]])
• def end ()
• def endNativePainting ()
• def eraseRect (arg__1)
• def eraseRect (arg__1)
• def eraseRect (x, y, w, h)
• def fillPath (path, brush)
• def fillRect (arg__1, arg__2)
• def fillRect (arg__1, arg__2)
• def fillRect (arg__1, color)
• def fillRect (arg__1, color)
• def fillRect (r, c)
• def fillRect (r, c)
• def fillRect (r, style)
• def fillRect (r, style)
• def fillRect (x, y, w, h, arg__5)
• def fillRect (x, y, w, h, c)
• def fillRect (x, y, w, h, color)
• def fillRect (x, y, w, h, style)
• def font ()
• def fontInfo ()
• def fontMetrics ()
• def hasClipping ()
• def initFrom (widget)
• def isActive ()
• def layoutDirection ()
• def opacity ()
• def paintEngine ()
• def pen ()
• def renderHints ()
• def resetMatrix ()
• def resetTransform ()
• def restore ()
• def rotate (a)
• def save ()
• def scale (sx, sy)
• def setBackground (bg)
• def setBackgroundMode (mode)
• def setBrush (brush)
• def setBrush (style)
• def setBrushOrigin (arg__1)
• def setBrushOrigin (arg__1)
• def setBrushOrigin (x, y)
• def setClipPath (path[, op=Qt.ReplaceClip])
• def setClipRect (arg__1[, op=Qt.ReplaceClip])
• def setClipRect (arg__1[, op=Qt.ReplaceClip])
• def setClipRect (x, y, w, h[, op=Qt.ReplaceClip])
• def setClipRegion (arg__1[, op=Qt.ReplaceClip])
• def setClipping (enable)
• def setCompositionMode (mode)
• def setFont (f)
• def setLayoutDirection (direction)
• def setOpacity (opacity)
• def setPen (color)
• def setPen (pen)
• def setPen (style)
• def setRenderHint (hint[, on=true])
• def setRenderHints (hints[, on=true])
• def setTransform (transform[, combine=false])
• def setViewTransformEnabled (enable)
• def setViewport (viewport)
• def setViewport (x, y, w, h)
• def setWindow (window)
• def setWindow (x, y, w, h)
• def setWorldMatrix (matrix[, combine=false])
• def setWorldMatrixEnabled (enabled)
• def setWorldTransform (matrix[, combine=false])
• def shear (sh, sv)
• def strokePath (path, pen)
• def testRenderHint (hint)
• def transform ()
• def translate (dx, dy)
• def translate (offset)
• def translate (offset)
• def viewTransformEnabled ()
• def 视口 ()
• def window ()
• def worldMatrix ()
• def worldMatrixEnabled ()
• def worldTransform ()

静态函数 ¶

• def restoreRedirected (device)
• def setRedirected (device, replacement[, offset=QPoint()])

def paintEvent(self, paintEvent):
    painter = QPainter(self)
    painter.setPen(Qt.blue)
    painter.setFont(QFont("Arial", 30))
    painter.drawText(rect(), Qt.AlignCenter, "Qt")
										

设置 ¶

绘制 ¶

渲染品质 ¶

坐标变换 ¶

Clipping ¶

复合模式 ¶

局限性 ¶

性能 ¶

class PySide.QtGui. QPainter ¶

class PySide.QtGui. QPainter ( arg__1 )

参数：	arg__1 – PySide.QtGui.QPaintDevice

构造描绘器。

另请参阅

PySide.QtGui.QPainter.begin() PySide.QtGui.QPainter.end()

Constructs a painter that begins painting the paint device immediately.

This constructor is convenient for short-lived painters, e.g. in a QWidget.paintEvent() and should be used only once. The constructor calls PySide.QtGui.QPainter.begin() for you and the PySide.QtGui.QPainter destructor automatically calls PySide.QtGui.QPainter.end() .

Here's an example using PySide.QtGui.QPainter.begin() and PySide.QtGui.QPainter.end() :

def paintEvent(self, paintEvent):
    p = QPainter()
    p.begin(self)
    p.drawLine(...)         # drawing code
    p.end()
												

The same example using this constructor:

self paintEvent(self, paintEvent):
    p = QPainter(self)
    p.drawLine(...)         # drawing code
											

Since the constructor cannot provide feedback when the initialization of the painter failed you should rather use PySide.QtGui.QPainter.begin() and PySide.QtGui.QPainter.end() to paint on external devices, e.g. printers.

另请参阅

PySide.QtGui.QPainter.begin() PySide.QtGui.QPainter.end()

PySide.QtGui.QPainter. CompositionMode ¶

Defines the modes supported for digital image compositing. Composition modes are used to specify how the pixels in one image, the source, are merged with the pixel in another image, the destination.

Please note that the bitwise raster operation modes, denoted with a RasterOp prefix, are only natively supported in the X11 and raster paint engines. This means that the only way to utilize these modes on the Mac is via a PySide.QtGui.QImage . The RasterOp denoted blend modes are not supported for pens and brushes with alpha components. Also, turning on the QPainter.Antialiasing render hint will effectively disable the RasterOp modes.

The most common type is SourceOver (often referred to as just alpha blending) where the source pixel is blended on top of the destination pixel in such a way that the alpha component of the source defines the translucency of the pixel.

When the paint device is a PySide.QtGui.QImage , the image format must be set to Format_ARGB32Premultiplied or Format_ARGB32 for the composition modes to have any effect. For performance the premultiplied version is the preferred format.

When a composition mode is set it applies to all painting operator, pens, brushes, gradients and pixmap/image drawing.

常量	描述
QPainter.CompositionMode_SourceOver	This is the default mode. The alpha of the source is used to blend the pixel on top of the destination.
QPainter.CompositionMode_DestinationOver	The alpha of the destination is used to blend it on top of the source pixels. This mode is the inverse of CompositionMode_SourceOver .
QPainter.CompositionMode_Clear	The pixels in the destination are cleared (set to fully transparent) independent of the source.
QPainter.CompositionMode_Source	The output is the source pixel. (This means a basic copy operation and is identical to SourceOver when the source pixel is opaque).
QPainter.CompositionMode_Destination	The output is the destination pixel. This means that the blending has no effect. This mode is the inverse of CompositionMode_Source .
QPainter.CompositionMode_SourceIn	The output is the source, where the alpha is reduced by that of the destination.
QPainter.CompositionMode_DestinationIn	The output is the destination, where the alpha is reduced by that of the source. This mode is the inverse of CompositionMode_SourceIn .
QPainter.CompositionMode_SourceOut	The output is the source, where the alpha is reduced by the inverse of destination.
QPainter.CompositionMode_DestinationOut	The output is the destination, where the alpha is reduced by the inverse of the source. This mode is the inverse of CompositionMode_SourceOut .
QPainter.CompositionMode_SourceAtop	The source pixel is blended on top of the destination, with the alpha of the source pixel reduced by the alpha of the destination pixel.
QPainter.CompositionMode_DestinationAtop	The destination pixel is blended on top of the source, with the alpha of the destination pixel is reduced by the alpha of the destination pixel. This mode is the inverse of CompositionMode_SourceAtop .
QPainter.CompositionMode_Xor	The source, whose alpha is reduced with the inverse of the destination alpha, is merged with the destination, whose alpha is reduced by the inverse of the source alpha. CompositionMode_Xor is not the same as the bitwise Xor.
QPainter.CompositionMode_Plus	Both the alpha and color of the source and destination pixels are added together.
QPainter.CompositionMode_Multiply	The output is the source color multiplied by the destination. Multiplying a color with white leaves the color unchanged, while multiplying a color with black produces black.
QPainter.CompositionMode_Screen	The source and destination colors are inverted and then multiplied. Screening a color with white produces white, whereas screening a color with black leaves the color unchanged.
QPainter.CompositionMode_Overlay	Multiplies or screens the colors depending on the destination color. The destination color is mixed with the source color to reflect the lightness or darkness of the destination.
QPainter.CompositionMode_Darken	The darker of the source and destination colors is selected.
QPainter.CompositionMode_Lighten	The lighter of the source and destination colors is selected.
QPainter.CompositionMode_ColorDodge	The destination color is brightened to reflect the source color. A black source color leaves the destination color unchanged.
QPainter.CompositionMode_ColorBurn	The destination color is darkened to reflect the source color. A white source color leaves the destination color unchanged.
QPainter.CompositionMode_HardLight	Multiplies or screens the colors depending on the source color. A light source color will lighten the destination color, whereas a dark source color will darken the destination color.
QPainter.CompositionMode_SoftLight	Darkens or lightens the colors depending on the source color. Similar to CompositionMode_HardLight .
QPainter.CompositionMode_Difference	Subtracts the darker of the colors from the lighter. Painting with white inverts the destination color, whereas painting with black leaves the destination color unchanged.
QPainter.CompositionMode_Exclusion	类似 CompositionMode_Difference , but with a lower contrast. Painting with white inverts the destination color, whereas painting with black leaves the destination color unchanged.
QPainter.RasterOp_SourceOrDestination	Does a bitwise OR operation on the source and destination pixels (src OR dst).
QPainter.RasterOp_SourceAndDestination	Does a bitwise AND operation on the source and destination pixels (src AND dst).
QPainter.RasterOp_SourceXorDestination	Does a bitwise XOR operation on the source and destination pixels (src XOR dst).
QPainter.RasterOp_NotSourceAndNotDestination	Does a bitwise NOR operation on the source and destination pixels ((NOT src) AND (NOT dst)).
QPainter.RasterOp_NotSourceOrNotDestination	Does a bitwise NAND operation on the source and destination pixels ((NOT src) OR (NOT dst)).
QPainter.RasterOp_NotSourceXorDestination	Does a bitwise operation where the source pixels are inverted and then XOR'ed with the destination ((NOT src) XOR dst).
QPainter.RasterOp_NotSource	Does a bitwise operation where the source pixels are inverted (NOT src).
QPainter.RasterOp_NotSourceAndDestination	Does a bitwise operation where the source is inverted and then AND'ed with the destination ((NOT src) AND dst).
QPainter.RasterOp_SourceAndNotDestination	Does a bitwise operation where the source is AND'ed with the inverted destination pixels (src AND (NOT dst)).

另请参阅

PySide.QtGui.QPainter.compositionMode() PySide.QtGui.QPainter.setCompositionMode() Composition Modes 图像合成范例

PySide.QtGui.QPainter. RenderHint ¶

Renderhints are used to specify flags to PySide.QtGui.QPainter that may or may not be respected by any given engine.

常量	描述
QPainter.Antialiasing	Indicates that the engine should antialias edges of primitives if possible.
QPainter.TextAntialiasing	Indicates that the engine should antialias text if possible. To forcibly disable antialiasing for text, do not use this hint. Instead, set QFont.NoAntialias on your font's style strategy.
QPainter.SmoothPixmapTransform	Indicates that the engine should use a smooth pixmap transformation algorithm (such as bilinear) rather than nearest neighbor.
QPainter.HighQualityAntialiasing	An OpenGL-specific rendering hint indicating that the engine should use fragment programs and offscreen rendering for antialiasing.
QPainter.NonCosmeticDefaultPen	The engine should interpret pens with a width of 0 (which otherwise enables QPen.isCosmetic() ) as being a non-cosmetic pen with a width of 1.

另请参阅

PySide.QtGui.QPainter.renderHints() PySide.QtGui.QPainter.setRenderHint() 渲染 Quality 同心圆范例

PySide.QtGui.QPainter. PixmapFragmentHint ¶

常量	描述
QPainter.OpaqueHint	Indicates that the pixmap fragments to be drawn are opaque. Opaque fragments are potentially faster to draw.

另请参阅

QPainter.drawPixmapFragments() QPainter.PixmapFragment

PySide.QtGui.QPainter. background ( ) ¶

返回类型：	PySide.QtGui.QBrush

返回当前背景笔刷。

另请参阅

PySide.QtGui.QPainter.setBackground() 设置

PySide.QtGui.QPainter. backgroundMode ( ) ¶

返回类型：	PySide.QtCore.Qt.BGMode

返回当前背景模式。

另请参阅

PySide.QtGui.QPainter.setBackgroundMode() 设置

PySide.QtGui.QPainter. begin ( arg__1 ) ¶

参数：	arg__1 – PySide.QtGui.QPaintDevice
返回类型：	PySide.QtCore.bool

Begins painting the paint device and returns true if successful; otherwise returns false.

Notice that all painter settings ( PySide.QtGui.QPainter.setPen() , PySide.QtGui.QPainter.setBrush() etc.) are reset to default values when PySide.QtGui.QPainter.begin() 被调用。

The errors that can occur are serious problems, such as these:

painter.begin(0)  # impossible - paint device cannot be 0
image = QPixmap(0, 0)
painter.begin(&image) # impossible - image.isNull() == true
painter.begin(myWidget)
painter2.begin(myWidget) # impossible - only one painter at a time
											

Note that most of the time, you can use one of the constructors instead of PySide.QtGui.QPainter.begin() , and that PySide.QtGui.QPainter.end() is automatically done at destruction.

警告

A paint device can only be painted by one painter at a time.

警告

Painting on a PySide.QtGui.QImage with the format QImage.Format_Indexed8 不被支持。

另请参阅

PySide.QtGui.QPainter.end() PySide.QtGui.QPainter.QPainter()

PySide.QtGui.QPainter. beginNativePainting ( ) ¶

Flushes the painting pipeline and prepares for the user issuing commands directly to the underlying graphics context. Must be followed by a call to PySide.QtGui.QPainter.endNativePainting() .

Note that only the states the underlying paint engine changes will be reset to their respective default states. The states we reset may change from release to release. The following states are currently reset in the OpenGL 2 engine:

• blending is disabled
• the depth, stencil and scissor tests are disabled
• the active texture unit is reset to 0
• the depth mask, depth function and the clear depth are reset to their default values
• the stencil mask, stencil operation and stencil function are reset to their default values
• the current color is reset to solid white

If, for example, the OpenGL polygon mode is changed by the user inside a beginNativePaint()/ PySide.QtGui.QPainter.endNativePainting() block, it will not be reset to the default state by PySide.QtGui.QPainter.endNativePainting() . Here is an example that shows intermixing of painter commands and raw OpenGL commands:

painter = QPainter(self)
painter.fillRect(0, 0, 128, 128, Qt.green)
painter.beginNativePainting()
glEnable(GL_SCISSOR_TEST)
glScissor(0, 0, 64, 64)
glClearColor(1, 0, 0, 1)
glClear(GL_COLOR_BUFFER_BIT)
glDisable(GL_SCISSOR_TEST)
painter.endNativePainting()
												

另请参阅

PySide.QtGui.QPainter.endNativePainting()

PySide.QtGui.QPainter. boundingRect ( x , y , w , h , flags , text ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int flags – PySide.QtCore.int text – unicode
返回类型：	PySide.QtCore.QRect

这是重载函数。

Returns the bounding rectangle of the given text as it will appear when drawn inside the rectangle beginning at the point ( x , y ) with width w and height h .

PySide.QtGui.QPainter. boundingRect ( rect , flags , text )

参数：	rect – PySide.QtCore.QRectF flags – PySide.QtCore.int text – unicode
返回类型：	PySide.QtCore.QRectF

Returns the bounding rectangle of the text as it will appear when drawn inside the given rectangle with the specified flags using the currently set PySide.QtGui.QPainter.font() ; i.e the function tells you where the PySide.QtGui.QPainter.drawText() function will draw when given the same arguments.

若 text does not fit within the given rectangle 使用指定 flags , the function returns the required rectangle.

flags argument is a bitwise OR of the following flags:

• Qt.AlignLeft
• Qt.AlignRight
• Qt.AlignHCenter
• Qt.AlignTop
• Qt.AlignBottom
• Qt.AlignVCenter
• Qt.AlignCenter
• Qt.TextSingleLine
• Qt.TextExpandTabs
• Qt.TextShowMnemonic
• Qt.TextWordWrap
• Qt.TextIncludeTrailingSpaces

If several of the horizontal or several of the vertical alignment flags are set, the resulting alignment is undefined.

另请参阅

PySide.QtGui.QPainter.drawText() Qt.Alignment Qt.TextFlag

PySide.QtGui.QPainter. boundingRect ( rect , flags , text )

参数：	rect – PySide.QtCore.QRect flags – PySide.QtCore.int text – unicode
返回类型：	PySide.QtCore.QRect

这是重载函数。

Returns the bounding rectangle of the text as it will appear when drawn inside the given rectangle with the specified flags using the currently set PySide.QtGui.QPainter.font() .

PySide.QtGui.QPainter. boundingRect ( rect , text [ , o=QTextOption() ] )

参数：	rect – PySide.QtCore.QRectF text – unicode o – PySide.QtGui.QTextOption
返回类型：	PySide.QtCore.QRectF

这是重载函数。

Instead of specifying flags as a bitwise OR of the Qt.AlignmentFlag and Qt.TextFlag , this overloaded function takes an option 自变量。 PySide.QtGui.QTextOption class provides a description of general rich text properties.

另请参阅

PySide.QtGui.QTextOption

PySide.QtGui.QPainter. brush ( ) ¶

返回类型：	PySide.QtGui.QBrush

Returns the painter's current brush.

另请参阅

QPainter.setBrush() 设置

PySide.QtGui.QPainter. brushOrigin ( ) ¶

返回类型：	PySide.QtCore.QPoint

Returns the currently set brush origin.

另请参阅

PySide.QtGui.QPainter.setBrushOrigin() 设置

PySide.QtGui.QPainter. clipBoundingRect ( ) ¶

返回类型：	PySide.QtCore.QRectF

Returns the bounding rectangle of the current clip if there is a clip; otherwise returns an empty rectangle. Note that the clip region is given in logical coordinates.

The bounding rectangle is not guaranteed to be tight.

另请参阅

PySide.QtGui.QPainter.setClipRect() PySide.QtGui.QPainter.setClipPath() PySide.QtGui.QPainter.setClipRegion()

PySide.QtGui.QPainter. clipPath ( ) ¶

返回类型：	PySide.QtGui.QPainterPath

Returns the currently clip as a path. Note that the clip path is given in logical coordinates.

警告

PySide.QtGui.QPainter does not store the combined clip explicitly as this is handled by the underlying PySide.QtGui.QPaintEngine , so the path is recreated on demand and transformed to the current logical coordinate system. This is potentially an expensive operation.

另请参阅

PySide.QtGui.QPainter.setClipPath() PySide.QtGui.QPainter.clipRegion() PySide.QtGui.QPainter.setClipping()

PySide.QtGui.QPainter. clipRegion ( ) ¶

返回类型：	PySide.QtGui.QRegion

Returns the currently set clip region. Note that the clip region is given in logical coordinates.

警告

PySide.QtGui.QPainter does not store the combined clip explicitly as this is handled by the underlying PySide.QtGui.QPaintEngine , so the path is recreated on demand and transformed to the current logical coordinate system. This is potentially an expensive operation.

另请参阅

PySide.QtGui.QPainter.setClipRegion() PySide.QtGui.QPainter.clipPath() PySide.QtGui.QPainter.setClipping()

PySide.QtGui.QPainter. combinedMatrix ( ) ¶

返回类型：	PySide.QtGui.QMatrix

Returns the transformation matrix combining the current window/viewport and world transformation.

It is advisable to use PySide.QtGui.QPainter.combinedTransform() instead of this function to preserve the properties of perspective transformations.

另请参阅

PySide.QtGui.QPainter.setWorldTransform() PySide.QtGui.QPainter.setWindow() PySide.QtGui.QPainter.setViewport()

PySide.QtGui.QPainter. combinedTransform ( ) ¶

返回类型：	PySide.QtGui.QTransform

Returns the transformation matrix combining the current window/viewport and world transformation.

另请参阅

PySide.QtGui.QPainter.setWorldTransform() PySide.QtGui.QPainter.setWindow() PySide.QtGui.QPainter.setViewport()

PySide.QtGui.QPainter. compositionMode ( ) ¶

返回类型：	PySide.QtGui.QPainter.CompositionMode

Returns the current composition mode.

另请参阅

QPainter.CompositionMode PySide.QtGui.QPainter.setCompositionMode()

PySide.QtGui.QPainter. device ( ) ¶

返回类型：	PySide.QtGui.QPaintDevice

Returns the paint device on which this painter is currently painting, or 0 if the painter is not active.

另请参阅

PySide.QtGui.QPainter.isActive()

PySide.QtGui.QPainter. deviceMatrix ( ) ¶

返回类型：	PySide.QtGui.QMatrix

Returns the matrix that transforms from logical coordinates to device coordinates of the platform dependent paint device.

注意

It is advisable to use PySide.QtGui.QPainter.deviceTransform() instead of this function to preserve the properties of perspective transformations.

此函数是 only needed when using platform painting commands on the platform dependent handle ( Qt.HANDLE ), and the platform does not do transformations nativly.

QPaintEngine.PaintEngineFeature enum can be queried to determine whether the platform performs the transformations or not.

另请参阅

PySide.QtGui.QPainter.worldMatrix() QPaintEngine.hasFeature()

PySide.QtGui.QPainter. deviceTransform ( ) ¶

返回类型：	PySide.QtGui.QTransform

Returns the matrix that transforms from logical coordinates to device coordinates of the platform dependent paint device.

此函数是 only needed when using platform painting commands on the platform dependent handle ( Qt.HANDLE ), and the platform does not do transformations nativly.

QPaintEngine.PaintEngineFeature enum can be queried to determine whether the platform performs the transformations or not.

另请参阅

PySide.QtGui.QPainter.worldTransform() QPaintEngine.hasFeature()

PySide.QtGui.QPainter. drawArc ( x , y , w , h , a , alen ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws the arc defined by the rectangle beginning at ( x , y ) with the specified width and height ，和给定 startAngle and spanAngle .

PySide.QtGui.QPainter. drawArc ( rect , a , alen )

参数：	rect – PySide.QtCore.QRectF a – PySide.QtCore.int alen – PySide.QtCore.int

Draws the arc defined by the given rectangle , startAngle and spanAngle .

startAngle and spanAngle must be specified in 1/16th of a degree, i.e. a full circle equals 5760 (16 * 360). Positive values for the angles mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

rectangle = QRectF(10.0, 20.0, 80.0, 60.0) startAngle = 30 * 16 spanAngle = 120 * 16 painter = QPainter(self) painter.drawArc(rectangle, startAngle, spanAngle)

另请参阅

PySide.QtGui.QPainter.drawPie() PySide.QtGui.QPainter.drawChord() 坐标系统

PySide.QtGui.QPainter. drawArc ( arg__1 , a , alen )

参数：	arg__1 – PySide.QtCore.QRect a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws the arc defined by the given rectangle , startAngle and spanAngle .

PySide.QtGui.QPainter. drawChord ( rect , a , alen ) ¶

参数：	rect – PySide.QtCore.QRectF a – PySide.QtCore.int alen – PySide.QtCore.int

Draws the chord defined by the given rectangle , startAngle and spanAngle . The chord is filled with the current PySide.QtGui.QPainter.brush() .

The startAngle and spanAngle must be specified in 1/16th of a degree, i.e. a full circle equals 5760 (16 * 360). Positive values for the angles mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

rectangle = QRectF(10.0, 20.0, 80.0, 60.0) startAngle = 30 * 16 spanAngle = 120 * 16 painter = QPainter(self) painter.drawChord(rect, startAngle, spanAngle)

另请参阅

PySide.QtGui.QPainter.drawArc() PySide.QtGui.QPainter.drawPie() 坐标系统

PySide.QtGui.QPainter. drawChord ( x , y , w , h , a , alen )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws the chord defined by the rectangle beginning at ( x , y ) with the specified width and height ，和给定 startAngle and spanAngle .

PySide.QtGui.QPainter. drawChord ( arg__1 , a , alen )

参数：	arg__1 – PySide.QtCore.QRect a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws the chord defined by the given rectangle , startAngle and spanAngle .

PySide.QtGui.QPainter. drawConvexPolygon ( polygon ) ¶

参数：	polygon – PySide.QtGui.QPolygon

这是重载函数。

Draws the convex polygon defined by polygon 使用当前钢笔和笔刷。

PySide.QtGui.QPainter. drawConvexPolygon ( polygon )

参数：	polygon – PySide.QtGui.QPolygonF

这是重载函数。

Draws the convex polygon defined by polygon 使用当前钢笔和笔刷。

PySide.QtGui.QPainter. drawConvexPolygon ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawConvexPolygon ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawEllipse ( r ) ¶

参数：	r – PySide.QtCore.QRectF

Draws the ellipse defined by the given rectangle .

A filled ellipse has a size of rectangle . PySide.QtCore.QRect.size() . A stroked ellipse has a size of rectangle . PySide.QtCore.QRect.size() plus the pen width.

rectangle = QRectF(10.0, 20.0, 80.0, 60.0) painter = QPainter(self) painter.drawEllipse(rectangle)

另请参阅

PySide.QtGui.QPainter.drawPie() 坐标系统

PySide.QtGui.QPainter. drawEllipse ( r )

参数：	r – PySide.QtCore.QRect

这是重载函数。

Draws the ellipse defined by the given rectangle .

PySide.QtGui.QPainter. drawEllipse ( x , y , w , h )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int

这是重载函数。

Draws the ellipse defined by the rectangle beginning at ( x , y ) with the given width and height .

PySide.QtGui.QPainter. drawEllipse ( center , rx , ry )

参数：	center – PySide.QtCore.QPointF rx – PySide.QtCore.qreal ry – PySide.QtCore.qreal

这是重载函数。

Draws the ellipse positioned at center with radii rx and ry .

PySide.QtGui.QPainter. drawEllipse ( center , rx , ry )

参数：	center – PySide.QtCore.QPoint rx – PySide.QtCore.int ry – PySide.QtCore.int

这是重载函数。

Draws the ellipse positioned at center with radii rx and ry .

PySide.QtGui.QPainter. drawImage ( targetRect , image , sourceRect [ , flags=Qt.AutoColor ] ) ¶

参数：	targetRect – PySide.QtCore.QRect image – PySide.QtGui.QImage sourceRect – PySide.QtCore.QRect flags – PySide.QtCore.Qt.ImageConversionFlags

PySide.QtGui.QPainter. drawImage ( targetRect , image , sourceRect [ , flags=Qt.AutoColor ] )

参数：	targetRect – PySide.QtCore.QRectF image – PySide.QtGui.QImage sourceRect – PySide.QtCore.QRectF flags – PySide.QtCore.Qt.ImageConversionFlags

PySide.QtGui.QPainter. drawImage ( x , y , image [ , sx=0 [ , sy=0 [ , sw=-1 [ , sh=-1 [ , flags=Qt.AutoColor ] ] ] ] ] )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int image – PySide.QtGui.QImage sx – PySide.QtCore.int sy – PySide.QtCore.int sw – PySide.QtCore.int sh – PySide.QtCore.int flags – PySide.QtCore.Qt.ImageConversionFlags

PySide.QtGui.QPainter. drawImage ( r , image )

参数：	r – PySide.QtCore.QRect image – PySide.QtGui.QImage

这是重载函数。

绘制给定 image 进给定 rectangle .

注意

The image is scaled to fit the rectangle, if both the image and rectangle size disagree.

PySide.QtGui.QPainter. drawImage ( r , image )

参数：	r – PySide.QtCore.QRectF image – PySide.QtGui.QImage

这是重载函数。

绘制给定 image 进给定 rectangle .

注意

The image is scaled to fit the rectangle, if both the image and rectangle size disagree.

PySide.QtGui.QPainter. drawImage ( p , image )

参数：	p – PySide.QtCore.QPoint image – PySide.QtGui.QImage

这是重载函数。

绘制给定 image at the given point .

PySide.QtGui.QPainter. drawImage ( p , image , sr [ , flags=Qt.AutoColor ] )

参数：	p – PySide.QtCore.QPoint image – PySide.QtGui.QImage sr – PySide.QtCore.QRect flags – PySide.QtCore.Qt.ImageConversionFlags

PySide.QtGui.QPainter. drawImage ( p , image , sr [ , flags=Qt.AutoColor ] )

参数：	p – PySide.QtCore.QPointF image – PySide.QtGui.QImage sr – PySide.QtCore.QRectF flags – PySide.QtCore.Qt.ImageConversionFlags

PySide.QtGui.QPainter. drawImage ( p , image )

参数：	p – PySide.QtCore.QPointF image – PySide.QtGui.QImage

这是重载函数。

绘制给定 image at the given point .

PySide.QtGui.QPainter. drawLine ( p1 , p2 ) ¶

参数：	p1 – PySide.QtCore.QPointF p2 – PySide.QtCore.QPointF

这是重载函数。

Draws a line from p1 to p2 .

PySide.QtGui.QPainter. drawLine ( p1 , p2 )

参数：	p1 – PySide.QtCore.QPoint p2 – PySide.QtCore.QPoint

这是重载函数。

Draws a line from p1 to p2 .

PySide.QtGui.QPainter. drawLine ( x1 , y1 , x2 , y2 )

参数：	x1 – PySide.QtCore.int y1 – PySide.QtCore.int x2 – PySide.QtCore.int y2 – PySide.QtCore.int

这是重载函数。

Draws a line from ( x1 , y1 ) to ( x2 , y2 ) and sets the current pen position to ( x2 , y2 ).

PySide.QtGui.QPainter. drawLine ( line )

参数：	line – PySide.QtCore.QLineF

Draws a line defined by line .

line = QLineF(10.0, 80.0, 90.0, 20.0) painter = QPainter(self) painter.drawLine(line)

另请参阅

PySide.QtGui.QPainter.drawLines() PySide.QtGui.QPainter.drawPolyline() 坐标系统

PySide.QtGui.QPainter. drawLine ( line )

参数：	line – PySide.QtCore.QLine

这是重载函数。

Draws a line defined by line .

PySide.QtGui.QPainter. drawLines ( lines ) ¶

参数：	lines –

PySide.QtGui.QPainter. drawLines ( pointPairs )

参数：	pointPairs –

PySide.QtGui.QPainter. drawLines ( pointPairs )

参数：	pointPairs –

PySide.QtGui.QPainter. drawLines ( lines )

参数：	lines –

PySide.QtGui.QPainter. drawPath ( path ) ¶

参数：	path – PySide.QtGui.QPainterPath

Draws the given painter path using the current pen for outline and the current brush for filling.

path = QPainterPath() path.moveTo(20, 80) path.lineTo(20, 30) path.cubicTo(80, 0, 50, 50, 80, 80) painter = QPainter(self) painter.drawPath(path)

另请参阅

the Painter Paths example the Vector Deformation demo

PySide.QtGui.QPainter. drawPicture ( x , y , picture ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int picture – PySide.QtGui.QPicture

这是重载函数。

绘制给定 picture at point ( x , y ).

PySide.QtGui.QPainter. drawPicture ( p , picture )

参数：	p – PySide.QtCore.QPointF picture – PySide.QtGui.QPicture

Replays the given picture at the given point .

PySide.QtGui.QPicture 类是描绘设备，它记录并重演 PySide.QtGui.QPainter commands. A picture serializes the painter commands to an IO device in a platform-independent format. Everything that can be painted on a widget or pixmap can also be stored in a picture.

This function does exactly the same as QPicture.play() when called with point = PySide.QtCore.QPoint (0, 0).

picture = QPicture() point = QPointF(10.0, 20.0) picture.load("drawing.pic") painter = QPainter(self) painter.drawPicture(0, 0, picture)

另请参阅

QPicture.play()

PySide.QtGui.QPainter. drawPicture ( p , picture )

参数：	p – PySide.QtCore.QPoint picture – PySide.QtGui.QPicture

这是重载函数。

Replays the given picture at the given point .

PySide.QtGui.QPainter. drawPie ( x , y , w , h , a , alen ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws the pie defined by the rectangle beginning at ( x , y ) with the specified width and height ，和给定 startAngle and spanAngle .

PySide.QtGui.QPainter. drawPie ( rect , a , alen )

参数：	rect – PySide.QtCore.QRectF a – PySide.QtCore.int alen – PySide.QtCore.int

Draws a pie defined by the given rectangle , startAngle and and spanAngle .

The pie is filled with the current PySide.QtGui.QPainter.brush() .

The startAngle and spanAngle must be specified in 1/16th of a degree, i.e. a full circle equals 5760 (16 * 360). Positive values for the angles mean counter-clockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.

rectangle = QRectF(10.0, 20.0, 80.0, 60.0) startAngle = 30 * 16 spanAngle = 120 * 16 painter = QPainter(self) painter.drawPie(rectangle, startAngle, spanAngle)

另请参阅

PySide.QtGui.QPainter.drawEllipse() PySide.QtGui.QPainter.drawChord() 坐标系统

PySide.QtGui.QPainter. drawPie ( arg__1 , a , alen )

参数：	arg__1 – PySide.QtCore.QRect a – PySide.QtCore.int alen – PySide.QtCore.int

这是重载函数。

Draws a pie defined by the given rectangle , startAngle and and spanAngle .

PySide.QtGui.QPainter. drawPixmap ( x , y , pm ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int pm – PySide.QtGui.QPixmap

这是重载函数。

绘制给定 pixmap at position ( x , y ).

PySide.QtGui.QPainter. drawPixmap ( targetRect , pixmap , sourceRect )

参数：	targetRect – PySide.QtCore.QRectF pixmap – PySide.QtGui.QPixmap sourceRect – PySide.QtCore.QRectF

Draws the rectangular portion source 为给定 pixmap 进给定 target in the paint device.

注意

The pixmap is scaled to fit the rectangle, if both the pixmap and rectangle size disagree.

target = QRectF(10.0, 20.0, 80.0, 60.0) source = QRectF(0.0, 0.0, 70.0, 40.0) pixmap = QPixmap(":myPixmap.png") painter = QPainter(self) painter.drawPixmap(target, image, source)

若 pixmap 是 PySide.QtGui.QBitmap it is drawn with the bits that are “set” using the pens color. If backgroundMode is Qt.OpaqueMode , the “unset” bits are drawn using the color of the background brush; if backgroundMode is Qt.TransparentMode , the “unset” bits are transparent. Drawing bitmaps with gradient or texture colors is not supported.

另请参阅

PySide.QtGui.QPainter.drawImage()

PySide.QtGui.QPainter. drawPixmap ( x , y , pm , sx , sy , sw , sh )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int pm – PySide.QtGui.QPixmap sx – PySide.QtCore.int sy – PySide.QtCore.int sw – PySide.QtCore.int sh – PySide.QtCore.int

这是重载函数。

Draws a pixmap at ( x , y ) by copying a part of the given pixmap into the paint device.

( x , y ) specifies the top-left point in the paint device that is to be drawn onto. ( sx , sy ) specifies the top-left point in pixmap that is to be drawn. The default is (0, 0).

( sw , sh ) specifies the size of the pixmap that is to be drawn. The default, (0, 0) (and negative) means all the way to the bottom-right of the pixmap.

PySide.QtGui.QPainter. drawPixmap ( x , y , w , h , pm , sx , sy , sw , sh )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int pm – PySide.QtGui.QPixmap sx – PySide.QtCore.int sy – PySide.QtCore.int sw – PySide.QtCore.int sh – PySide.QtCore.int

这是重载函数。

Draws the rectangular portion with the origin ( sx , sy ), width sw and height sh , of the given pixmap , at the point ( x , y ), with a width of w and a height of h . If sw or sh are equal to zero the width/height of the pixmap is used and adjusted by the offset sx/sy;

PySide.QtGui.QPainter. drawPixmap ( x , y , w , h , pm )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int pm – PySide.QtGui.QPixmap

这是重载函数。

Draws the pixmap into the rectangle at position ( x , y ) with the given width and height .

PySide.QtGui.QPainter. drawPixmap ( p , pm , sr )

参数：	p – PySide.QtCore.QPointF pm – PySide.QtGui.QPixmap sr – PySide.QtCore.QRectF

这是重载函数。

Draws the rectangular portion source 为给定 pixmap with its origin at the given point .

PySide.QtGui.QPainter. drawPixmap ( targetRect , pixmap , sourceRect )

参数：	targetRect – PySide.QtCore.QRect pixmap – PySide.QtGui.QPixmap sourceRect – PySide.QtCore.QRect

这是重载函数。

Draws the rectangular portion source 为给定 pixmap 进给定 target in the paint device.

注意

The pixmap is scaled to fit the rectangle, if both the pixmap and rectangle size disagree.

PySide.QtGui.QPainter. drawPixmap ( p , pm , sr )

参数：	p – PySide.QtCore.QPoint pm – PySide.QtGui.QPixmap sr – PySide.QtCore.QRect

这是重载函数。

Draws the rectangular portion source 为给定 pixmap with its origin at the given point .

PySide.QtGui.QPainter. drawPixmap ( p , pm )

参数：	p – PySide.QtCore.QPoint pm – PySide.QtGui.QPixmap

这是重载函数。

绘制给定 pixmap with its origin at the given point .

PySide.QtGui.QPainter. drawPixmap ( p , pm )

参数：	p – PySide.QtCore.QPointF pm – PySide.QtGui.QPixmap

这是重载函数。

绘制给定 pixmap with its origin at the given point .

PySide.QtGui.QPainter. drawPixmap ( r , pm )

参数：	r – PySide.QtCore.QRect pm – PySide.QtGui.QPixmap

这是重载函数。

绘制给定 pixmap 进给定 rectangle .

注意

The pixmap is scaled to fit the rectangle, if both the pixmap and rectangle size disagree.

PySide.QtGui.QPainter. drawPixmapFragments ( targetRects , sourceRects , fragmentCount , pixmap [ , hints=0 ] ) ¶

参数：	targetRects – PySide.QtCore.QRectF sourceRects – PySide.QtCore.QRectF fragmentCount – PySide.QtCore.int pixmap – PySide.QtGui.QPixmap hints – PySide.QtGui.QPainter.PixmapFragmentHints

PySide.QtGui.QPainter. drawPixmapFragments ( fragments , fragmentCount , pixmap [ , hints=0 ] )

参数：	fragments – PySide.QtGui.QPainter::PixmapFragment fragmentCount – PySide.QtCore.int pixmap – PySide.QtGui.QPixmap hints – PySide.QtGui.QPainter.PixmapFragmentHints

PySide.QtGui.QPainter. drawPoint ( pt ) ¶

参数：	pt – PySide.QtCore.QPointF

Draws a single point at the given position using the current pen's color.

另请参阅

坐标系统

PySide.QtGui.QPainter. drawPoint ( x , y )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int

这是重载函数。

Draws a single point at position ( x , y ).

PySide.QtGui.QPainter. drawPoint ( p )

参数：	p – PySide.QtCore.QPoint

这是重载函数。

Draws a single point at the given position using the current pen's color.

PySide.QtGui.QPainter. drawPoints ( points ) ¶

参数：	points – PySide.QtGui.QPolygonF

这是重载函数。

Draws the points in the vector points .

PySide.QtGui.QPainter. drawPoints ( points )

参数：	points – PySide.QtGui.QPolygon

这是重载函数。

Draws the points in the vector points .

PySide.QtGui.QPainter. drawPoints ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawPoints ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawPolygon ( polygon [ , fillRule=Qt.OddEvenFill ] ) ¶

参数：	polygon – PySide.QtGui.QPolygonF fillRule – PySide.QtCore.Qt.FillRule

PySide.QtGui.QPainter. drawPolygon ( polygon [ , fillRule=Qt.OddEvenFill ] )

参数：	polygon – PySide.QtGui.QPolygon fillRule – PySide.QtCore.Qt.FillRule

PySide.QtGui.QPainter. drawPolygon ( arg__1 , arg__2 )

参数：	arg__1 – arg__2 – PySide.QtCore.Qt.FillRule

PySide.QtGui.QPainter. drawPolygon ( arg__1 , arg__2 )

参数：	arg__1 – arg__2 – PySide.QtCore.Qt.FillRule

PySide.QtGui.QPainter. drawPolyline ( polyline ) ¶

参数：	polyline – PySide.QtGui.QPolygonF

这是重载函数。

Draws the polyline defined by the given points using the current pen.

PySide.QtGui.QPainter. drawPolyline ( polygon )

参数：	polygon – PySide.QtGui.QPolygon

这是重载函数。

Draws the polyline defined by the given points using the current pen.

PySide.QtGui.QPainter. drawPolyline ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawPolyline ( arg__1 )

参数：	arg__1 –

PySide.QtGui.QPainter. drawRect ( x1 , y1 , w , h ) ¶

参数：	x1 – PySide.QtCore.int y1 – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int

这是重载函数。

Draws a rectangle with upper left corner at ( x , y ) and with the given width and height .

PySide.QtGui.QPainter. drawRect ( rect )

参数：	rect – PySide.QtCore.QRectF

Draws the current rectangle with the current pen and brush.

A filled rectangle has a size of rectangle . size() . A stroked rectangle has a size of rectangle . size() plus the pen width.

rectangle = QRectF(10.0, 20.0, 80.0, 60.0) painter = QPainter(self) painter.drawRect(rectangle)

另请参阅

PySide.QtGui.QPainter.drawRects() PySide.QtGui.QPainter.drawPolygon() 坐标系统

PySide.QtGui.QPainter. drawRect ( rect )

参数：	rect – PySide.QtCore.QRect

这是重载函数。

Draws the current rectangle with the current pen and brush.

PySide.QtGui.QPainter. drawRects ( rectangles ) ¶

参数：	rectangles –

PySide.QtGui.QPainter. drawRects ( rectangles )

参数：	rectangles –

PySide.QtGui.QPainter. drawRoundRect ( x , y , w , h [ , xRound=25 [ , yRound=25 ] ] ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int xRound – PySide.QtCore.int yRound – PySide.QtCore.int

这是重载函数。

Draws the rectangle x , y , w , h with rounded corners.

PySide.QtGui.QPainter. drawRoundRect ( r [ , xround=25 [ , yround=25 ] ] )

参数：	r – PySide.QtCore.QRectF xround – PySide.QtCore.int yround – PySide.QtCore.int

Draws a rectangle r with rounded corners.

xRnd and yRnd arguments specify how rounded the corners should be. 0 is angled corners, 99 is maximum roundedness.

A filled rectangle has a size of r. size() . A stroked rectangle has a size of r. size() plus the pen width.

另请参阅

PySide.QtGui.QPainter.drawRoundedRect()

PySide.QtGui.QPainter. drawRoundRect ( r [ , xround=25 [ , yround=25 ] ] )

参数：	r – PySide.QtCore.QRect xround – PySide.QtCore.int yround – PySide.QtCore.int

这是重载函数。

Draws the rectangle r with rounded corners.

PySide.QtGui.QPainter. drawRoundedRect ( x , y , w , h , xRadius , yRadius [ , mode=Qt.AbsoluteSize ] ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int xRadius – PySide.QtCore.qreal yRadius – PySide.QtCore.qreal mode – PySide.QtCore.Qt.SizeMode

PySide.QtGui.QPainter. drawRoundedRect ( rect , xRadius , yRadius [ , mode=Qt.AbsoluteSize ] )

参数：	rect – PySide.QtCore.QRectF xRadius – PySide.QtCore.qreal yRadius – PySide.QtCore.qreal mode – PySide.QtCore.Qt.SizeMode

PySide.QtGui.QPainter. drawRoundedRect ( rect , xRadius , yRadius [ , mode=Qt.AbsoluteSize ] )

参数：	rect – PySide.QtCore.QRect xRadius – PySide.QtCore.qreal yRadius – PySide.QtCore.qreal mode – PySide.QtCore.Qt.SizeMode

PySide.QtGui.QPainter. drawText ( r , flags , text ) ¶

参数：	r – PySide.QtCore.QRectF flags – PySide.QtCore.int text – unicode

这是重载函数。

绘制给定 text within the provided rectangle .

painter = QPainter(self) painter.drawText(rect, Qt.AlignCenter, tr("Qt by\nTrolltech"))

boundingRect (if not null) is set to the what the bounding rectangle should be in order to enclose the whole text. The flags argument is a bitwise OR of the following flags:

• Qt.AlignLeft
• Qt.AlignRight
• Qt.AlignHCenter
• Qt.AlignJustify
• Qt.AlignTop
• Qt.AlignBottom
• Qt.AlignVCenter
• Qt.AlignCenter
• Qt.TextDontClip
• Qt.TextSingleLine
• Qt.TextExpandTabs
• Qt.TextShowMnemonic
• Qt.TextWordWrap
• Qt.TextIncludeTrailingSpaces

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-coordinate of rectangle is used as the top of the font.

另请参阅

Qt.AlignmentFlag Qt.TextFlag PySide.QtGui.QPainter.boundingRect() PySide.QtGui.QPainter.layoutDirection()

PySide.QtGui.QPainter. drawText ( x , y , s )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int s – unicode

这是重载函数。

绘制给定 text at position ( x , y ), using the painter's currently defined text direction.

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-position is used as the baseline of the font.

PySide.QtGui.QPainter. drawText ( x , y , w , h , flags , text )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int flags – PySide.QtCore.int text – unicode

这是重载函数。

绘制给定 text within the rectangle with origin ( x , y ), width and height .

boundingRect (if not null) is set to the actual bounding rectangle of the output. The flags argument is a bitwise OR of the following flags:

• Qt.AlignLeft
• Qt.AlignRight
• Qt.AlignHCenter
• Qt.AlignJustify
• Qt.AlignTop
• Qt.AlignBottom
• Qt.AlignVCenter
• Qt.AlignCenter
• Qt.TextSingleLine
• Qt.TextExpandTabs
• Qt.TextShowMnemonic
• Qt.TextWordWrap

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-position is used as the top of the font.

另请参阅

Qt.AlignmentFlag Qt.TextFlag

PySide.QtGui.QPainter. drawText ( r , text [ , o=QTextOption() ] )

参数：	r – PySide.QtCore.QRectF text – unicode o – PySide.QtGui.QTextOption

这是重载函数。

绘制给定 text 在 rectangle specified using the option to control its positioning and orientation.

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-coordinate of rectangle is used as the top of the font.

PySide.QtGui.QPainter. drawText ( p , s )

参数：	p – PySide.QtCore.QPointF s – unicode

绘制给定 text with the currently defined text direction, beginning at the given position .

This function does not handle the newline character (n), as it cannot break text into multiple lines, and it cannot display the newline character. Use the QPainter.drawText() overload that takes a rectangle instead if you want to draw multiple lines of text with the newline character, or if you want the text to be wrapped.

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-position is used as the baseline of the font.

PySide.QtGui.QPainter. drawText ( r , flags , text )

参数：	r – PySide.QtCore.QRect flags – PySide.QtCore.int text – unicode

这是重载函数。

绘制给定 text within the provided rectangle according to the specified flags 。 boundingRect (if not null) is set to the what the bounding rectangle should be in order to enclose the whole text.

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-coordinate of rectangle is used as the top of the font.

PySide.QtGui.QPainter. drawText ( p , s )

参数：	p – PySide.QtCore.QPoint s – unicode

这是重载函数。

绘制给定 text with the currently defined text direction, beginning at the given position .

默认情况下， PySide.QtGui.QPainter 绘制抗锯齿文本。

注意

The y-position is used as the baseline of the font.

PySide.QtGui.QPainter. drawTextItem ( x , y , ti ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int ti – PySide.QtGui.QTextItem

这是重载函数。

PySide.QtGui.QPainter. drawTextItem ( p , ti )

参数：	p – PySide.QtCore.QPointF ti – PySide.QtGui.QTextItem

Draws the text item ti 在位置 p .

This method ignores the painters background mode and color. drawText and qt_format_text have to do it themselves, as only they know the extents of the complete string.

It ignores the font set on the painter as the text item has one of its own.

The underline and strikeout parameters of the text items font are ignored aswell. You'll need to pass in the correct flags to get underlining and strikeout.

PySide.QtGui.QPainter. drawTextItem ( p , ti )

参数：	p – PySide.QtCore.QPoint ti – PySide.QtGui.QTextItem

这是重载函数。

Draws the text item ti 在位置 p .

PySide.QtGui.QPainter. drawTiledPixmap ( rect , pm [ , offset=QPointF() ] ) ¶

参数：	rect – PySide.QtCore.QRectF pm – PySide.QtGui.QPixmap offset – PySide.QtCore.QPointF

Draws a tiled pixmap , inside the given rectangle with its origin at the given position .

调用 PySide.QtGui.QPainter.drawTiledPixmap() is similar to calling PySide.QtGui.QPainter.drawPixmap() several times to fill (tile) an area with a pixmap, but is potentially much more efficient depending on the underlying window system.

另请参阅

PySide.QtGui.QPainter.drawPixmap()

PySide.QtGui.QPainter. drawTiledPixmap ( x , y , w , h , arg__5 [ , sx=0 [ , sy=0 ] ] )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int arg__5 – PySide.QtGui.QPixmap sx – PySide.QtCore.int sy – PySide.QtCore.int

这是重载函数。

Draws a tiled pixmap in the specified rectangle.

( x , y ) specifies the top-left point in the paint device that is to be drawn onto; with the given width and height . ( sx , sy ) specifies the top-left point in the pixmap that is to be drawn; this defaults to (0, 0).

PySide.QtGui.QPainter. drawTiledPixmap ( arg__1 , arg__2 [ , pos=QPoint() ] )

参数：	arg__1 – PySide.QtCore.QRect arg__2 – PySide.QtGui.QPixmap pos – PySide.QtCore.QPoint

这是重载函数。

Draws a tiled pixmap , inside the given rectangle with its origin at the given position .

PySide.QtGui.QPainter. end ( ) ¶

返回类型：	PySide.QtCore.bool

Ends painting. Any resources used while painting are released. You don't normally need to call this since it is called by the destructor.

Returns true if the painter is no longer active; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.begin() PySide.QtGui.QPainter.isActive()

PySide.QtGui.QPainter. endNativePainting ( ) ¶

Restores the painter after manually issuing native painting commands. Lets the painter restore any native state that it relies on before calling any other painter commands.

另请参阅

PySide.QtGui.QPainter.beginNativePainting()

PySide.QtGui.QPainter. eraseRect ( arg__1 ) ¶

参数：	arg__1 – PySide.QtCore.QRectF

Erases the area inside the given rectangle . Equivalent to calling

fillRect(rectangle, background())
												

另请参阅

PySide.QtGui.QPainter.fillRect()

PySide.QtGui.QPainter. eraseRect ( x , y , w , h )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int

这是重载函数。

Erases the area inside the rectangle beginning at ( x , y ) with the given width and height .

PySide.QtGui.QPainter. eraseRect ( arg__1 )

参数：	arg__1 – PySide.QtCore.QRect

这是重载函数。

Erases the area inside the given rectangle .

PySide.QtGui.QPainter. fillPath ( path , brush ) ¶

参数：	path – PySide.QtGui.QPainterPath brush – PySide.QtGui.QBrush

Fills the given path using the given brush . The outline is not drawn.

Alternatively, you can specify a PySide.QtGui.QColor 而不是 PySide.QtGui.QBrush ; the PySide.QtGui.QBrush constructor (taking a PySide.QtGui.QColor argument) will automatically create a solid pattern brush.

另请参阅

PySide.QtGui.QPainter.drawPath()

PySide.QtGui.QPainter. fillRect ( r , c ) ¶

参数：	r – PySide.QtCore.QRectF c – PySide.QtCore.Qt.GlobalColor

PySide.QtGui.QPainter. fillRect ( x , y , w , h , style )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int style – PySide.QtCore.Qt.BrushStyle

PySide.QtGui.QPainter. fillRect ( x , y , w , h , c )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int c – PySide.QtCore.Qt.GlobalColor

PySide.QtGui.QPainter. fillRect ( x , y , w , h , arg__5 )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int arg__5 – PySide.QtGui.QBrush

这是重载函数。

Fills the rectangle beginning at ( x , y ) with the given width and height ，使用给定 brush .

PySide.QtGui.QPainter. fillRect ( x , y , w , h , color )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int color – PySide.QtGui.QColor

这是重载函数。

Fills the rectangle beginning at ( x , y ) with the given width and height ，使用给定 color .

PySide.QtGui.QPainter. fillRect ( r , style )

参数：	r – PySide.QtCore.QRectF style – PySide.QtCore.Qt.BrushStyle

PySide.QtGui.QPainter. fillRect ( arg__1 , arg__2 )

参数：	arg__1 – PySide.QtCore.QRect arg__2 – PySide.QtGui.QBrush

这是重载函数。

Fills the given rectangle with the specified brush .

PySide.QtGui.QPainter. fillRect ( arg__1 , color )

参数：	arg__1 – PySide.QtCore.QRect color – PySide.QtGui.QColor

这是重载函数。

Fills the given rectangle 采用 color 指定。

PySide.QtGui.QPainter. fillRect ( r , style )

参数：	r – PySide.QtCore.QRect style – PySide.QtCore.Qt.BrushStyle

PySide.QtGui.QPainter. fillRect ( arg__1 , color )

参数：	arg__1 – PySide.QtCore.QRectF color – PySide.QtGui.QColor

这是重载函数。

Fills the given rectangle 采用 color 指定。

PySide.QtGui.QPainter. fillRect ( r , c )

参数：	r – PySide.QtCore.QRect c – PySide.QtCore.Qt.GlobalColor

PySide.QtGui.QPainter. fillRect ( arg__1 , arg__2 )

参数：	arg__1 – PySide.QtCore.QRectF arg__2 – PySide.QtGui.QBrush

Fills the given rectangle 采用 brush 指定。

Alternatively, you can specify a PySide.QtGui.QColor 而不是 PySide.QtGui.QBrush ; the PySide.QtGui.QBrush constructor (taking a PySide.QtGui.QColor argument) will automatically create a solid pattern brush.

另请参阅

PySide.QtGui.QPainter.drawRect()

PySide.QtGui.QPainter. font ( ) ¶

返回类型：	PySide.QtGui.QFont

Returns the currently set font used for drawing text.

另请参阅

PySide.QtGui.QPainter.setFont() PySide.QtGui.QPainter.drawText() 设置

PySide.QtGui.QPainter. fontInfo ( ) ¶

返回类型：	PySide.QtGui.QFontInfo

Returns the font info for the painter if the painter is active. Otherwise, the return value is undefined.

另请参阅

PySide.QtGui.QPainter.font() PySide.QtGui.QPainter.isActive() 设置

PySide.QtGui.QPainter. fontMetrics ( ) ¶

返回类型：	PySide.QtGui.QFontMetrics

Returns the font metrics for the painter if the painter is active. Otherwise, the return value is undefined.

另请参阅

PySide.QtGui.QPainter.font() PySide.QtGui.QPainter.isActive() 设置

PySide.QtGui.QPainter. hasClipping ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if clipping has been set; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.setClipping() Clipping

PySide.QtGui.QPainter. initFrom ( widget ) ¶

参数：	widget – PySide.QtGui.QWidget

Initializes the painters pen, background and font to the same as the given widget . This function is called automatically when the painter is opened on a PySide.QtGui.QWidget .

另请参阅

PySide.QtGui.QPainter.begin() 设置

PySide.QtGui.QPainter. isActive ( ) ¶

返回类型：	PySide.QtCore.bool

返回 true 若 PySide.QtGui.QPainter.begin() has been called and PySide.QtGui.QPainter.end() has not yet been called; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.begin() QPaintDevice.paintingActive()

PySide.QtGui.QPainter. layoutDirection ( ) ¶

返回类型：	PySide.QtCore.Qt.LayoutDirection

Returns the layout direction used by the painter when drawing text.

另请参阅

QTextOption.textDirection() PySide.QtGui.QPainter.setLayoutDirection() PySide.QtGui.QPainter.drawText() 设置

PySide.QtGui.QPainter. opacity ( ) ¶

返回类型：	PySide.QtCore.qreal

返回描绘器的不透明度。默认值为 1。

另请参阅

PySide.QtGui.QPainter.setOpacity()

PySide.QtGui.QPainter. paintEngine ( ) ¶

返回类型：	PySide.QtGui.QPaintEngine

Returns the paint engine that the painter is currently operating on if the painter is active; otherwise 0.

另请参阅

PySide.QtGui.QPainter.isActive()

PySide.QtGui.QPainter. pen ( ) ¶

返回类型：	PySide.QtGui.QPen

返回描绘器的当前钢笔。

另请参阅

PySide.QtGui.QPainter.setPen() 设置

PySide.QtGui.QPainter. renderHints ( ) ¶

返回类型：	PySide.QtGui.QPainter.RenderHints

Returns a flag that specifies the rendering hints that are set for this painter.

另请参阅

PySide.QtGui.QPainter.setRenderHints() PySide.QtGui.QPainter.testRenderHint() 渲染 Quality

PySide.QtGui.QPainter. resetMatrix ( ) ¶

Resets any transformations that were made using PySide.QtGui.QPainter.translate() , PySide.QtGui.QPainter.scale() , PySide.QtGui.QPainter.shear() , PySide.QtGui.QPainter.rotate() , PySide.QtGui.QPainter.setWorldMatrix() , PySide.QtGui.QPainter.setViewport() and PySide.QtGui.QPainter.setWindow() .

It is advisable to use PySide.QtGui.QPainter.resetTransform() instead of this function to preserve the properties of perspective transformations.

另请参阅

Coordinate 变换

PySide.QtGui.QPainter. resetTransform ( ) ¶

Resets any transformations that were made using PySide.QtGui.QPainter.translate() , PySide.QtGui.QPainter.scale() , PySide.QtGui.QPainter.shear() , PySide.QtGui.QPainter.rotate() , PySide.QtGui.QPainter.setWorldTransform() , PySide.QtGui.QPainter.setViewport() and PySide.QtGui.QPainter.setWindow() .

另请参阅

Coordinate 变换

PySide.QtGui.QPainter. restore ( ) ¶

Restores the current painter state (pops a saved state off the stack).

另请参阅

PySide.QtGui.QPainter.save()

static PySide.QtGui.QPainter. restoreRedirected ( device ) ¶

参数：	device – PySide.QtGui.QPaintDevice

使用 QWidget.render() obsoletes the use of this function.

Restores the previous redirection for the given device after a call to PySide.QtGui.QPainter.setRedirected() .

警告

Making use of redirections in the PySide.QtGui.QPainter API implies that QPainter.begin() and PySide.QtGui.QPaintDevice destructors need to hold a mutex for a short period. This can impact performance. Use of QWidget::render is strongly encouraged.

另请参阅

PySide.QtGui.QPainter.redirected()

PySide.QtGui.QPainter. rotate ( a ) ¶

参数：	a – PySide.QtCore.qreal

Rotates the coordinate system the given angle clockwise.

另请参阅

PySide.QtGui.QPainter.setWorldTransform() Coordinate 变换

PySide.QtGui.QPainter. save ( ) ¶

Saves the current painter state (pushes the state onto a stack). A PySide.QtGui.QPainter.save() must be followed by a corresponding PySide.QtGui.QPainter.restore() ; the PySide.QtGui.QPainter.end() function unwinds the stack.

另请参阅

PySide.QtGui.QPainter.restore()

PySide.QtGui.QPainter. scale ( sx , sy ) ¶

参数：	sx – PySide.QtCore.qreal sy – PySide.QtCore.qreal

Scales the coordinate system by ( sx , sy ).

另请参阅

PySide.QtGui.QPainter.setWorldTransform() Coordinate 变换

PySide.QtGui.QPainter. setBackground ( bg ) ¶

参数：	bg – PySide.QtGui.QBrush

将描绘器背景笔刷设为给定 brush .

The background brush is the brush that is filled in when drawing opaque text, stippled lines and bitmaps. The background brush has no effect in transparent background mode (which is the default).

另请参阅

PySide.QtGui.QPainter.background() PySide.QtGui.QPainter.setBackgroundMode() 设置

PySide.QtGui.QPainter. setBackgroundMode ( mode ) ¶

参数：	mode – PySide.QtCore.Qt.BGMode

PySide.QtGui.QPainter. setBrush ( brush ) ¶

参数：	brush – PySide.QtGui.QBrush

把描绘器的笔刷设为给定 brush .

描绘器的笔刷定义形状如何被填充。

另请参阅

PySide.QtGui.QPainter.brush() 设置

PySide.QtGui.QPainter. setBrush ( style )

参数：	style – PySide.QtCore.Qt.BrushStyle

PySide.QtGui.QPainter. setBrushOrigin ( arg__1 ) ¶

参数：	arg__1 – PySide.QtCore.QPointF

Sets the brush origin to position .

The brush origin specifies the (0, 0) coordinate of the painter's brush.

Note that while the PySide.QtGui.QPainter.brushOrigin() was necessary to adopt the parent's background for a widget in Qt 3, this is no longer the case since the Qt 4 painter doesn't paint the background unless you explicitly tell it to do so by setting the widget's PySide.QtGui.QWidget.autoFillBackground() property to true.

另请参阅

PySide.QtGui.QPainter.brushOrigin() 设置

PySide.QtGui.QPainter. setBrushOrigin ( arg__1 )

参数：	arg__1 – PySide.QtCore.QPoint

这是重载函数。

Sets the brush's origin to the given position .

PySide.QtGui.QPainter. setBrushOrigin ( x , y )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int

这是重载函数。

Sets the brush's origin to point ( x , y ).

PySide.QtGui.QPainter. setClipPath ( path [ , op=Qt.ReplaceClip ] ) ¶

参数：	path – PySide.QtGui.QPainterPath op – PySide.QtCore.Qt.ClipOperation

PySide.QtGui.QPainter. setClipRect ( arg__1 [ , op=Qt.ReplaceClip ] ) ¶

参数：	arg__1 – PySide.QtCore.QRect op – PySide.QtCore.Qt.ClipOperation

PySide.QtGui.QPainter. setClipRect ( arg__1 [ , op=Qt.ReplaceClip ] )

参数：	arg__1 – PySide.QtCore.QRectF op – PySide.QtCore.Qt.ClipOperation

PySide.QtGui.QPainter. setClipRect ( x , y , w , h [ , op=Qt.ReplaceClip ] )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int op – PySide.QtCore.Qt.ClipOperation

PySide.QtGui.QPainter. setClipRegion ( arg__1 [ , op=Qt.ReplaceClip ] ) ¶

参数：	arg__1 – PySide.QtGui.QRegion op – PySide.QtCore.Qt.ClipOperation

PySide.QtGui.QPainter. setClipping ( enable ) ¶

参数：	enable – PySide.QtCore.bool

Enables clipping if enable is true, or disables clipping if enable is false.

另请参阅

PySide.QtGui.QPainter.hasClipping() Clipping

PySide.QtGui.QPainter. setCompositionMode ( mode ) ¶

参数：	mode – PySide.QtGui.QPainter.CompositionMode

将合成模式设为给定 mode .

警告

Only a PySide.QtGui.QPainter operating on a PySide.QtGui.QImage fully supports all composition modes. The RasterOp modes are supported for X11 as described in PySide.QtGui.QPainter.compositionMode() .

另请参阅

PySide.QtGui.QPainter.compositionMode()

PySide.QtGui.QPainter. setFont ( f ) ¶

参数：	f – PySide.QtGui.QFont

Sets the painter's font to the given font .

This font is used by subsequent PySide.QtGui.QPainter.drawText() functions. The text color is the same as the pen color.

If you set a font that isn't available, Qt finds a close match. PySide.QtGui.QPainter.font() will return what you set using PySide.QtGui.QPainter.setFont() and PySide.QtGui.QPainter.fontInfo() returns the font actually being used (which may be the same).

另请参阅

PySide.QtGui.QPainter.font() PySide.QtGui.QPainter.drawText() 设置

PySide.QtGui.QPainter. setLayoutDirection ( direction ) ¶

参数：	direction – PySide.QtCore.Qt.LayoutDirection

PySide.QtGui.QPainter. setOpacity ( opacity ) ¶

参数：	opacity – PySide.QtCore.qreal

把描绘器的不透明度设为 opacity . The value should be in the range 0.0 to 1.0, where 0.0 is fully transparent and 1.0 is fully opaque.

Opacity set on the painter will apply to all drawing operations individually.

另请参阅

PySide.QtGui.QPainter.opacity()

PySide.QtGui.QPainter. setPen ( pen ) ¶

参数：	pen – PySide.QtGui.QPen

把描绘器的钢笔，设为给定 pen .

pen 定义如何绘制线条和轮廓，且它还定义文本颜色。

另请参阅

PySide.QtGui.QPainter.pen() 设置

PySide.QtGui.QPainter. setPen ( color )

参数：	color – PySide.QtGui.QColor

这是重载函数。

Sets the painter's pen to have style Qt.SolidLine , width 0 and the specified color .

PySide.QtGui.QPainter. setPen ( style )

参数：	style – PySide.QtCore.Qt.PenStyle

static PySide.QtGui.QPainter. setRedirected ( device , replacement [ , offset=QPoint() ] ) ¶

参数：	device – PySide.QtGui.QPaintDevice replacement – PySide.QtGui.QPaintDevice offset – PySide.QtCore.QPoint

Please use QWidget.render() 代替。

Redirects all paint commands for the given paint device , to the replacement device. The optional point offset defines an offset within the source device.

The redirection will not be effective until the PySide.QtGui.QPainter.begin() function has been called; make sure to call PySide.QtGui.QPainter.end() 为给定 device ‘s painter (if any) before redirecting. Call PySide.QtGui.QPainter.restoreRedirected() to restore the previous redirection.

警告

Making use of redirections in the PySide.QtGui.QPainter API implies that QPainter.begin() and PySide.QtGui.QPaintDevice destructors need to hold a mutex for a short period. This can impact performance. Use of QWidget::render is strongly encouraged.

另请参阅

PySide.QtGui.QPainter.redirected() PySide.QtGui.QPainter.restoreRedirected()

PySide.QtGui.QPainter. setRenderHint ( hint [ , on=true ] ) ¶

参数：	hint – PySide.QtGui.QPainter.RenderHint on – PySide.QtCore.bool

Sets the given render hint on the painter if on is true; otherwise clears the render hint.

另请参阅

PySide.QtGui.QPainter.setRenderHints() PySide.QtGui.QPainter.renderHints() 渲染 Quality

PySide.QtGui.QPainter. setRenderHints ( hints [ , on=true ] ) ¶

参数：	hints – PySide.QtGui.QPainter.RenderHints on – PySide.QtCore.bool

PySide.QtGui.QPainter. setTransform ( transform [ , combine=false ] ) ¶

参数：	transform – PySide.QtGui.QTransform combine – PySide.QtCore.bool

Sets the world transformation matrix. If combine is true, the specified transform is combined with the current matrix; otherwise it replaces the current matrix.

另请参阅

PySide.QtGui.QPainter.transform() PySide.QtGui.QPainter.setWorldTransform()

PySide.QtGui.QPainter. setViewTransformEnabled ( enable ) ¶

参数：	enable – PySide.QtCore.bool

Enables view transformations if enable is true, or disables view transformations if enable is false.

另请参阅

PySide.QtGui.QPainter.viewTransformEnabled() Window-Viewport Conversion

PySide.QtGui.QPainter. setViewport ( x , y , w , h ) ¶

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int

这是重载函数。

Sets the painter's viewport rectangle to be the rectangle beginning at ( x , y ) with the given width and height .

PySide.QtGui.QPainter. setViewport ( 视口 )

参数：	视口 – PySide.QtCore.QRect

Sets the painter's viewport rectangle to the given rectangle , and enables view transformations.

The viewport rectangle is part of the view transformation. The viewport specifies the device coordinate system. Its sister, the PySide.QtGui.QPainter.window() , specifies the logical coordinate system.

The default viewport rectangle is the same as the device's rectangle.

另请参阅

PySide.QtGui.QPainter.viewport() PySide.QtGui.QPainter.viewTransformEnabled() Window-Viewport Conversion

PySide.QtGui.QPainter. setWindow ( window ) ¶

参数：	window – PySide.QtCore.QRect

Sets the painter's window to the given rectangle , and enables view transformations.

The window rectangle is part of the view transformation. The window specifies the logical coordinate system. Its sister, the PySide.QtGui.QPainter.viewport() , specifies the device coordinate system.

The default window rectangle is the same as the device's rectangle.

另请参阅

PySide.QtGui.QPainter.window() PySide.QtGui.QPainter.viewTransformEnabled() Window-Viewport Conversion

PySide.QtGui.QPainter. setWindow ( x , y , w , h )

参数：	x – PySide.QtCore.int y – PySide.QtCore.int w – PySide.QtCore.int h – PySide.QtCore.int

这是重载函数。

Sets the painter's window to the rectangle beginning at ( x , y ) and the given width and height .

PySide.QtGui.QPainter. setWorldMatrix ( matrix [ , combine=false ] ) ¶

参数：	matrix – PySide.QtGui.QMatrix combine – PySide.QtCore.bool

Sets the transformation matrix to matrix and enables transformations.

注意

It is advisable to use PySide.QtGui.QPainter.setWorldTransform() instead of this function to preserve the properties of perspective transformations.

若 combine is true, then matrix is combined with the current transformation matrix; otherwise matrix replaces the current transformation matrix.

若 matrix is the identity matrix and combine is false, this function calls setWorldMatrixEnabled(false). (The identity matrix is the matrix where QMatrix.m11() and QMatrix.m22() are 1.0 and the rest are 0.0.)

The following functions can transform the coordinate system without using a PySide.QtGui.QMatrix :

• PySide.QtGui.QPainter.translate()
• PySide.QtGui.QPainter.scale()
• PySide.QtGui.QPainter.shear()
• PySide.QtGui.QPainter.rotate()

They operate on the painter's PySide.QtGui.QPainter.worldMatrix() and are implemented like this:

def rotate(self, angle):
    matrix = QMatrix()
    matrix.rotate(angle)
    setWorldMatrix(matrix, true)
												

Note that when using PySide.QtGui.QPainter.setWorldMatrix() function you should always have combine be true when you are drawing into a PySide.QtGui.QPicture . Otherwise it may not be possible to replay the picture with additional transformations; using the PySide.QtGui.QPainter.translate() , PySide.QtGui.QPainter.scale() , etc. convenience functions is safe.

For more information about the coordinate system, transformations and window-viewport conversion, see 坐标系统 .

另请参阅

PySide.QtGui.QPainter.worldMatrix() PySide.QtGui.QPainter.setWorldTransform() PySide.QtGui.QTransform

PySide.QtGui.QPainter. setWorldMatrixEnabled ( enabled ) ¶

参数：	enabled – PySide.QtCore.bool

Enables transformations if enable is true, or disables transformations if enable is false. The world transformation matrix is not changed.

另请参阅

PySide.QtGui.QPainter.worldMatrixEnabled() PySide.QtGui.QPainter.worldTransform() Coordinate 变换

PySide.QtGui.QPainter. setWorldTransform ( matrix [ , combine=false ] ) ¶

参数：	matrix – PySide.QtGui.QTransform combine – PySide.QtCore.bool

Sets the world transformation matrix. If combine is true, the specified matrix is combined with the current matrix; otherwise it replaces the current matrix.

另请参阅

PySide.QtGui.QPainter.worldTransform() PySide.QtGui.QPainter.transform() PySide.QtGui.QPainter.setTransform()

PySide.QtGui.QPainter. shear ( sh , sv ) ¶

参数：	sh – PySide.QtCore.qreal sv – PySide.QtCore.qreal

Shears the coordinate system by ( sh , sv ).

另请参阅

PySide.QtGui.QPainter.setWorldTransform() Coordinate 变换

PySide.QtGui.QPainter. strokePath ( path , pen ) ¶

参数：	path – PySide.QtGui.QPainterPath pen – PySide.QtGui.QPen

Draws the outline (strokes) the path path with the pen specified by pen

另请参阅

PySide.QtGui.QPainter.fillPath() 绘制

PySide.QtGui.QPainter. testRenderHint ( hint ) ¶

参数：	hint – PySide.QtGui.QPainter.RenderHint
返回类型：	PySide.QtCore.bool

返回 true 若 hint is set; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.renderHints() PySide.QtGui.QPainter.setRenderHint()

PySide.QtGui.QPainter. transform ( ) ¶

返回类型：	PySide.QtGui.QTransform

Returns the world transformation matrix.

另请参阅

PySide.QtGui.QPainter.setTransform() PySide.QtGui.QPainter.worldTransform()

PySide.QtGui.QPainter. translate ( offset ) ¶

参数：	offset – PySide.QtCore.QPointF

Translates the coordinate system by the given offset ; i.e. the given offset is added to points.

另请参阅

PySide.QtGui.QPainter.setWorldTransform() Coordinate 变换

PySide.QtGui.QPainter. translate ( offset )

参数：	offset – PySide.QtCore.QPoint

这是重载函数。

Translates the coordinate system by the given offset .

PySide.QtGui.QPainter. translate ( dx , dy )

参数：	dx – PySide.QtCore.qreal dy – PySide.QtCore.qreal

这是重载函数。

Translates the coordinate system by the vector ( dx , dy ).

PySide.QtGui.QPainter. viewTransformEnabled ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if view transformation is enabled; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.setViewTransformEnabled() PySide.QtGui.QPainter.worldTransform()

PySide.QtGui.QPainter. 视口 ( ) ¶

返回类型：	PySide.QtCore.QRect

Returns the viewport rectangle.

另请参阅

PySide.QtGui.QPainter.setViewport() PySide.QtGui.QPainter.setViewTransformEnabled()

PySide.QtGui.QPainter. window ( ) ¶

返回类型：	PySide.QtCore.QRect

Returns the window rectangle.

另请参阅

PySide.QtGui.QPainter.setWindow() PySide.QtGui.QPainter.setViewTransformEnabled()

PySide.QtGui.QPainter. worldMatrix ( ) ¶

返回类型：	PySide.QtGui.QMatrix

Returns the world transformation matrix.

It is advisable to use PySide.QtGui.QPainter.worldTransform() 因为 PySide.QtGui.QPainter.worldMatrix() does not preserve the properties of perspective transformations.

另请参阅

PySide.QtGui.QPainter.setWorldMatrix() Coordinate 变换 坐标系统

PySide.QtGui.QPainter. worldMatrixEnabled ( ) ¶

返回类型：	PySide.QtCore.bool

Returns true if world transformation is enabled; otherwise returns false.

另请参阅

PySide.QtGui.QPainter.setWorldMatrixEnabled() PySide.QtGui.QPainter.worldTransform() 坐标系统

PySide.QtGui.QPainter. worldTransform ( ) ¶

返回类型：	PySide.QtGui.QTransform

Returns the world transformation matrix.

另请参阅

PySide.QtGui.QPainter.setWorldTransform()