https://bugs.kde.org/show_bug.cgi?id=424387
Bug ID: 424387
Summary: Node.setOpacity(int) fails to visually update
Product: krita
Version: nightly build (please specify the git hash!)
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: Scripting
Assignee: krita-bugs-n...@kde.org
Reporter: rks...@gmail.com
Target Milestone: ---
SUMMARY
The function setOpacity(int) of class Node (tested only on Paint Layer), fails
to visually update on its own, although it does get reflected in layers docker
(it shows new opacity). If I try to paint on the layer, the new strokes are of
new opacity whereas old strokes stay with old opacity value. But it fixes if i
try to change opacity manually via layers docker.
STEPS TO REPRODUCE
1. Make sure a paint layer is selected, with something painted on it, I assume
its 255 (100%).
2. Run a script which changes the active node's opacity by node.setOpacity(int)
to some new value, say 128 (50%).
OBSERVED RESULT
Layers docker updates the current layer's opacity to 50% but nothing happens
visually on the canvas. Trying to paint will paint new strokes with 50% but
older strokes stay at 100%. Trying to change opacity of the layer manually
fixes this.
EXPECTED RESULT
The canvas should update to new opacity.
NOTE :
- If I am expected to call some function to notify canvas after I call
setOpacity(int) then it should be mentioned in the document. Currently nothing
is mentioned.
- As a workaround, I just call node.rotateNode(0.0) after changing opacity.
This fixes the problem, the canvas gets updated with new opacity value.
SOFTWARE/OS VERSIONS
Krita
Version: 4.3.1-alpha (git f119f41)
Languages: en_US, en
Hidpi: false
Qt
Version (compiled): 5.12.9
Version (loaded): 5.12.9
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 5.7.9-arch1-1
Pretty Productname: Arch Linux
Product Type: arch
Product Version: unknown
Desktop: X-Cinnamon
OpenGL Info
Vendor: "NVIDIA Corporation"
Renderer: "GeForce GTX 960/PCIe/SSE2"
Version: "4.6.0 NVIDIA 450.57"
Shading language: "4.60 NVIDIA"
Requested format: QSurfaceFormat(version 3.0, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Current format: QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Version: 4.6
Supports deprecated functions true
is OpenGL ES: false
QPA OpenGL Detection Info
supportsDesktopGL: true
supportsOpenGLES: true
isQtPreferOpenGLES: false
Hardware Information
GPU Acceleration: auto
Memory: 15935 Mb
Number of Cores: 4
Swap Location: /tmp
Current Settings
Current Swap Location: /tmp
Current Swap Location writable: true
Undo Enabled: true
Undo Stack Limit: 30
Use OpenGL: true
Use OpenGL Texture Buffer: false
Use AMD Vectorization Workaround: false
Canvas State: OPENGL_SUCCESS
Autosave Interval: 180
Use Backup Files: false
Number of Backups Kept: 20
Backup File Suffix: _backup
Backup Location: Same Folder as the File
Backup Location writable: false
Use Win8 Pointer Input: false
Use RightMiddleTabletButton Workaround: false
Levels of Detail Enabled: false
Use Zip64: false
Display Information
Number of screens: 1
Screen: 0
Name: HDMI-0
Depth: 24
Scale: 1
Resolution in pixels: 1920x1080
Manufacturer: BNQ
Model: BenQ GW2760HS
Refresh Rate: 60
ADDITIONAL INFORMATION
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