Created attachment 118760 [details] Guides in the UML tool Gaphor SUMMARY It would be nice to have guides, that show whether elements are aligned and to which dragged elements 'snap', i.e. the dragged element stays perfectly aligned when it gets dragged to a position which roughly aligns with another element. Another open source UML tool which implements this is Gaphor: https://flathub.org/apps/details/org.gaphor.Gaphor STEPS TO REPRODUCE 1. Draw a diagram with many elements 2. Try to perfectly align all elements OBSERVED RESULT This is quite hard EXPECTED RESULT It should be easy SOFTWARE/OS VERSIONS Windows: - MacOS: - Linux/KDE Plasma: 5.14.5 (available in About System) KDE Plasma Version: 5.14.5 KDE Frameworks Version: 5.55.0 Qt Version: 5.11.3 ADDITIONAL INFORMATION
A possibly relevant merge request was started @ https://invent.kde.org/sdk/umbrello/-/merge_requests/79
Git commit 9d31825ca2bdcd047a5bffbbbcb44ded69cb6b9f by Alexander Wilms. Committed on 18/11/2025 at 19:27. Pushed by habacker into branch 'master'. Add alignment guides with zoom-independent snapping Signed-off-by: Alexander Wilms <f.alexander.wilms@gmail.com> M +1 -0 umbrello/CMakeLists.txt M +6 -0 umbrello/dialogs/pages/uioptionspage.cpp M +1 -0 umbrello/dialogs/pages/uioptionspage.h M +6 -0 umbrello/optionstate.cpp M +3 -1 umbrello/optionstate.h M +5 -1 umbrello/umbrello.kcfg M +52 -0 umbrello/umlscene.cpp M +5 -0 umbrello/umlscene.h A +417 -0 umbrello/umlwidgets/alignmentguide.cpp [License: GPL(v2.0+)] A +167 -0 umbrello/umlwidgets/alignmentguide.h [License: GPL(v2.0+)] M +28 -1 umbrello/umlwidgets/umlwidget.cpp https://invent.kde.org/sdk/umbrello/-/commit/9d31825ca2bdcd047a5bffbbbcb44ded69cb6b9f
Git commit d151fd4ca5f09ff82b168fd1a4f91a488f2ccff2 by Ralf Habacker, on behalf of Alexander Wilms. Committed on 18/11/2025 at 22:23. Pushed by habacker into branch 'release/25.12'. Add alignment guides with zoom-independent snapping FIXED-IN:25.11.90 Signed-off-by: Alexander Wilms <f.alexander.wilms@gmail.com> (cherry picked from commit 9d31825ca2bdcd047a5bffbbbcb44ded69cb6b9f) M +1 -0 umbrello/CMakeLists.txt M +6 -0 umbrello/dialogs/pages/uioptionspage.cpp M +1 -0 umbrello/dialogs/pages/uioptionspage.h M +6 -0 umbrello/optionstate.cpp M +3 -1 umbrello/optionstate.h M +5 -1 umbrello/umbrello.kcfg M +52 -0 umbrello/umlscene.cpp M +5 -0 umbrello/umlscene.h A +417 -0 umbrello/umlwidgets/alignmentguide.cpp [License: GPL(v2.0+)] A +167 -0 umbrello/umlwidgets/alignmentguide.h [License: GPL(v2.0+)] M +28 -1 umbrello/umlwidgets/umlwidget.cpp https://invent.kde.org/sdk/umbrello/-/commit/d151fd4ca5f09ff82b168fd1a4f91a488f2ccff2