Created attachment 122379 [details] vector artifacts, incorrect redraw. I stumbled upon this. In master(bd00a058145ad0) editing a vector shape does not redraw boundaries correctly leaving traces of the old shape behind This does not happen on 4.2.5 STEPS TO REPRODUCE 1. Create vector layer and add a shape 2. convert shape to path if it isnt 3. Edit shape moving control points OBSERVED RESULT artifacts EXPECTED RESULT no artifacts SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Confirmed. I guess you'll have to bisect this.
Bug intruduced by commit bbc0f80732afbf0cb36ccdf5fd6b672dd15712a6 Author: Dmitry Kazakov <dimula73@gmail.com> Date: Fri Jul 12 20:02:22 2019 +0300 Refactor signal compressor to have better timing properties * before: emits signals with time range [1.0...2.0] * interval * after: emits signals with time range [0.5...1.5] * interval Bascially, now it handles it much better when interval is around 10-20 ms. With the old version it caused KisCanvas2 to drop frames and look ugly when the user pans the canvas. CCBUG:409460
Git commit 21977037e6231b727274bd73d9d1394f479377f4 by Dmitry Kazakov. Committed on 30/08/2019 at 12:53. Pushed by dkazakov into branch 'master'. Fix extremely slow dragging of points in a shape with KoPathTool The update signal must be compressed. We already have a compression in KisShapeLayerCanvas, but there is no compression in KoToolProxy::repaintDecorations(). M +44 -6 libs/flake/KoShapeManager.cpp M +1 -0 libs/flake/KoShapeManager.h M +9 -2 libs/flake/KoShapeManager_p.h https://invent.kde.org/kde/krita/commit/21977037e6231b727274bd73d9d1394f479377f4
Git commit bec9bf1faa6fd83d9b6a5df39c27c5ed081359c3 by Dmitry Kazakov. Committed on 30/08/2019 at 12:53. Pushed by dkazakov into branch 'master'. Fix artifacts when moving control points of path shape In older (non-multithreaded) days calligra used extremely hackish way of updating vactor shapes. It first called shape->update(), then changed shape, then called shape->update() again. It could only work when the updates were guaranteed to be queued and parsed in the next window paint event. We don't have this guarantee in Krita for years, so this method just cannot work. Instead, we should manually aggregate dirty rect in the call and then call shape->updateAbsolute(oldDirtyRect | shape->boundingRect). That is the only way to guarantee that updates will happen correctly. M +2 -2 libs/flake/commands/KoPathControlPointMoveCommand.cpp M +4 -3 libs/flake/commands/KoPathPointMoveCommand.cpp https://invent.kde.org/kde/krita/commit/bec9bf1faa6fd83d9b6a5df39c27c5ed081359c3
Git commit aeec54c45b2562f256678d66d10d2621ef181b81 by Dmitry Kazakov. Committed on 13/09/2019 at 08:56. Pushed by dkazakov into branch 'krita/4.2'. Fix artifacts when moving control points of path shape In older (non-multithreaded) days calligra used extremely hackish way of updating vactor shapes. It first called shape->update(), then changed shape, then called shape->update() again. It could only work when the updates were guaranteed to be queued and parsed in the next window paint event. We don't have this guarantee in Krita for years, so this method just cannot work. Instead, we should manually aggregate dirty rect in the call and then call shape->updateAbsolute(oldDirtyRect | shape->boundingRect). That is the only way to guarantee that updates will happen correctly. M +2 -2 libs/flake/commands/KoPathControlPointMoveCommand.cpp M +4 -3 libs/flake/commands/KoPathPointMoveCommand.cpp https://invent.kde.org/kde/krita/commit/aeec54c45b2562f256678d66d10d2621ef181b81
Git commit b92431e2c48d8d2c94204eb8ecbc8983eda64071 by Dmitry Kazakov. Committed on 13/09/2019 at 08:56. Pushed by dkazakov into branch 'krita/4.2'. Fix extremely slow dragging of points in a shape with KoPathTool The update signal must be compressed. We already have a compression in KisShapeLayerCanvas, but there is no compression in KoToolProxy::repaintDecorations(). M +44 -6 libs/flake/KoShapeManager.cpp M +1 -0 libs/flake/KoShapeManager.h M +9 -2 libs/flake/KoShapeManager_p.h https://invent.kde.org/kde/krita/commit/b92431e2c48d8d2c94204eb8ecbc8983eda64071