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# -*- coding: utf-8 -*-
#
# Licensed under the terms of the Qwt License
# Copyright (c) 2002 Uwe Rathmann, for the original C++ code
# Copyright (c) 2015 Pierre Raybaut, for the Python translation/optimization
# (see LICENSE file for more details)
"""
QwtPainterCommand
-----------------
.. autoclass:: QwtPainterCommand
:members:
"""
import copy
from qtpy.QtGui import QPaintEngine, QPainterPath
class PixmapData(object):
def __init__(self):
self.rect = None
self.pixmap = None
self.subRect = None
class ImageData(object):
def __init__(self):
self.rect = None
self.image = None
self.subRect = None
self.flags = None
class StateData(object):
def __init__(self):
self.flags = None
self.pen = None
self.brush = None
self.brushOrigin = None
self.backgroundBrush = None
self.backgroundMode = None
self.font = None
self.matrix = None
self.transform = None
self.clipOperation = None
self.clipRegion = None
self.clipPath = None
self.isClipEnabled = None
self.renderHints = None
self.compositionMode = None
self.opacity = None
class QwtPainterCommand(object):
"""
`QwtPainterCommand` represents the attributes of a paint operation
how it is used between `QPainter` and `QPaintDevice`
It is used by :py:class:`qwt.graphic.QwtGraphic` to record and replay
paint operations
.. seealso::
:py:meth:`qwt.graphic.QwtGraphic.commands()`
.. py:class:: QwtPainterCommand()
Construct an invalid command
.. py:class:: QwtPainterCommand(path)
:noindex:
Copy constructor
:param QPainterPath path: Source
.. py:class:: QwtPainterCommand(rect, pixmap, subRect)
:noindex:
Constructor for Pixmap paint operation
:param QRectF rect: Target rectangle
:param QPixmap pixmap: Pixmap
:param QRectF subRect: Rectangle inside the pixmap
.. py:class:: QwtPainterCommand(rect, image, subRect, flags)
:noindex:
Constructor for Image paint operation
:param QRectF rect: Target rectangle
:param QImage image: Image
:param QRectF subRect: Rectangle inside the image
:param Qt.ImageConversionFlags flags: Conversion flags
.. py:class:: QwtPainterCommand(state)
:noindex:
Constructor for State paint operation
:param QPaintEngineState state: Paint engine state
"""
# enum Type
Invalid = -1
Path, Pixmap, Image, State = list(range(4))
def __init__(self, *args):
if len(args) == 0:
self.__type = self.Invalid
elif len(args) == 1:
(arg,) = args
if isinstance(arg, QPainterPath):
path = arg
self.__type = self.Path
self.__path = QPainterPath(path)
elif isinstance(arg, QwtPainterCommand):
other = arg
self.copy(other)
else:
state = arg
self.__type = self.State
self.__stateData = StateData()
self.__stateData.flags = state.state()
if self.__stateData.flags & QPaintEngine.DirtyPen:
self.__stateData.pen = state.pen()
if self.__stateData.flags & QPaintEngine.DirtyBrush:
self.__stateData.brush = state.brush()
if self.__stateData.flags & QPaintEngine.DirtyBrushOrigin:
self.__stateData.brushOrigin = state.brushOrigin()
if self.__stateData.flags & QPaintEngine.DirtyFont:
self.__stateData.font = state.font()
if self.__stateData.flags & QPaintEngine.DirtyBackground:
self.__stateData.backgroundMode = state.backgroundMode()
self.__stateData.backgroundBrush = state.backgroundBrush()
if self.__stateData.flags & QPaintEngine.DirtyTransform:
self.__stateData.transform = state.transform()
if self.__stateData.flags & QPaintEngine.DirtyClipEnabled:
self.__stateData.isClipEnabled = state.isClipEnabled()
if self.__stateData.flags & QPaintEngine.DirtyClipRegion:
self.__stateData.clipRegion = state.clipRegion()
self.__stateData.clipOperation = state.clipOperation()
if self.__stateData.flags & QPaintEngine.DirtyClipPath:
self.__stateData.clipPath = state.clipPath()
self.__stateData.clipOperation = state.clipOperation()
if self.__stateData.flags & QPaintEngine.DirtyHints:
self.__stateData.renderHints = state.renderHints()
if self.__stateData.flags & QPaintEngine.DirtyCompositionMode:
self.__stateData.compositionMode = state.compositionMode()
if self.__stateData.flags & QPaintEngine.DirtyOpacity:
self.__stateData.opacity = state.opacity()
elif len(args) == 3:
rect, pixmap, subRect = args
self.__type = self.Pixmap
self.__pixmapData = PixmapData()
self.__pixmapData.rect = rect
self.__pixmapData.pixmap = pixmap
self.__pixmapData.subRect = subRect
elif len(args) == 4:
rect, image, subRect, flags = args
self.__type = self.Image
self.__imageData = ImageData()
self.__imageData.rect = rect
self.__imageData.image = image
self.__imageData.subRect = subRect
self.__imageData.flags = flags
else:
raise TypeError(
"%s() takes 0, 1, 3 or 4 argument(s) (%s given)"
% (self.__class__.__name__, len(args))
)
def copy(self, other):
self.__type = other.__type
if other.__type == self.Path:
self.__path = QPainterPath(other.__path)
elif other.__type == self.Pixmap:
self.__pixmapData = copy.deepcopy(other.__pixmapData)
elif other.__type == self.Image:
self.__imageData = copy.deepcopy(other.__imageData)
elif other.__type == self.State:
self.__stateData == copy.deepcopy(other.__stateData)
def reset(self):
self.__type = self.Invalid
def type(self):
return self.__type
def path(self):
return self.__path
def pixmapData(self):
return self.__pixmapData
def imageData(self):
return self.__imageData
def stateData(self):
return self.__stateData
|
