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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
import QtQuick
/*
QTBUG-92984.
Have three Image (with semi-transparency) and two semi-transparent
Rectangle elements, and so all in the alpha render list, with images that
are big enough to not get atlased. (meaning the underlying nodes never get
merged, but the nodes for the Rectangle elements might)
Lay them out vertically below each other, with the two Rectangles on top of
the second and third Images, respectively. Then change (swap) the source
property of the Images. This triggers a rebuild in the batch renderer.
Verify that the results are still correct, i.e. that the two Rectangle
elements do not get merged. An incorrect result would be having the third
Image rendered on top of the corresponding Rectangle due the two Rectangles
(incorrectly) being in one merged batch. The Image should always be below,
regardless of which nodes get changed, invalidated, and how batches get
rebuilt.
The base-final sample set 1 just verifies that the Image changes from the
bluish to greenish. The important part is the second set of samples: this
checks that the red(ish) rectangle is still on top of the third Image. With
incorrect merging behavior the second final result would be the same as the
first final one (i.e. the "background" Image rendered, incorrectly, on top
of the Rectangle).
#samples: 4
PixelPos R G B Error-tolerance
#base: 30 115 0.24313 0.30588 0.99607 0.05
#base: 30 124 0.847059 0.062745 0.2 0.05
#final: 30 115 0.36078 0.99607 0.42745 0.05
#final: 30 124 0.870588 0.2 0.0862745 0.05
*/
RenderTestBase {
id: root
property string selectedItem: "item2"
Item {
width: 150; height: 50
Image {
width: parent.width
objectName: "item1"
source: "widebtn1.png"
}
}
Item {
y: 50; width: 150; height: 50
Image {
width: parent.width
objectName: "item2"
source: selectedItem == objectName ? "widebtn2.png" : "widebtn1.png"
}
Rectangle {
anchors.fill: parent
anchors.margins: 20
color: "red"
opacity: 0.8
}
}
Item {
y: 100; width: 150; height: 50
Image {
id: img3
width: parent.width
objectName: "item3"
source: selectedItem == objectName ? "widebtn2.png" : "widebtn1.png"
}
Rectangle {
width: parent.width + 50
anchors.centerIn: parent
height: img3.height - 40
color: "red"
opacity: 0.8
}
}
onEnterFinalStage: {
selectedItem = "item3";
finalStageComplete = true;
}
}
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