https://bugs.kde.org/show_bug.cgi?id=426349
--- Comment #9 from Dmitry Kazakov <dimul...@gmail.com> ---
After my patches the following script works fine:
===========================================================
from krita import *
from PyQt5.Qt import *
from PyQt5 import QtCore
from PyQt5.QtCore import (
QByteArray,
QPoint
)
from PyQt5.QtGui import (
QColor,
QImage,
QPixmap
)
def buildQImage(color, w, h):
"""Generate a QImage to use for example"""
img=QImage(w, h, QImage.Format_ARGB32_Premultiplied)
img.fill(Qt.transparent)
pxmTgt = QPixmap.fromImage(img)
gradientb = QRadialGradient(QPointF(w/3, h/4), 2*w/3)
gradientb.setColorAt(0, color)
gradientb.setColorAt(1, Qt.black)
gradientf = QRadialGradient(QPointF(w/3, h/4), 2*w/3)
gradientf.setColorAt(0, Qt.white)
gradientf.setColorAt(0.15, Qt.transparent)
gradientf.setColorAt(1, Qt.transparent)
canvas = QPainter()
canvas.begin(pxmTgt)
canvas.setRenderHint(QPainter.Antialiasing)
canvas.setPen(Qt.NoPen)
canvas.setBrush(gradientb)
canvas.drawEllipse(QRect(20,20,w-40, h-40));
canvas.setBrush(gradientf)
canvas.drawEllipse(QRect(20,20,w-40, h-40));
canvas.end()
return pxmTgt.toImage()
def setLayerFromQImage(layerNode, image):
"""Set QImage as layer content"""
position = QPoint(0, 0)
ptr = image.bits()
ptr.setsize(image.byteCount())
layerNode.setPixelData(QByteArray(ptr.asstring()), position.x(),
position.y(), image.width(), image.height())
def sleep(value):
"""Do a sleep of `value` milliseconds"""
loop = QEventLoop()
QTimer.singleShot(value, loop.quit)
loop.exec()
dWidth=500
dHeight=500
# Cyan, Magenta, Yellow: colors used to generate layers
colors=[QColor(0,255,255), QColor(255,0,255), QColor(255,255,0)]
sleepValues=[0, 125]
image=buildQImage(QColor(255,0,0), dWidth, dHeight)
newDocument = Krita.instance().createDocument(dWidth, dHeight, "Test", "RGBA",
"U8", "", 300.0)
Krita.instance().activeWindow().addView(newDocument)
parentGroupLayer = newDocument.createGroupLayer('Group layer')
newDocument.rootNode().addChildNode(parentGroupLayer, None)
for i in range(len(colors)):
# loop over colors and apply basics actions like plugin Newspaper (and
Channel2Layers) does
newPLayer = newDocument.createNode(f"PaintLayer{i}", 'paintlayer')
setLayerFromQImage(newPLayer, image)
parentGroupLayer.addChildNode(newPLayer, None)
infoObject = InfoObject();
infoObject.setProperty("color", colors[i])
selection = Selection();
selection.select(0, 0, dWidth, dHeight, 255)
newFLayer = newDocument.createFillLayer(f"Color{i}", "color", infoObject,
selection)
parentGroupLayer.addChildNode(newFLayer, newPLayer)
# mandatory as when provided to createFillLayer(), infoObject is not
applied
# must also be applied after node has been added to parent...
newFLayer.setGenerator("color", infoObject)
newFLayer.setBlendingMode('add')
newLayer = newFLayer.mergeDown()
# returned layer from merge can't be used, so get the last one
currentProcessedLayer = parentGroupLayer.childNodes()[-1]
currentProcessedLayer.setBlendingMode('multiply')
===========================================================
Though other methods of Python API still have the same problems
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