https://bugs.kde.org/show_bug.cgi?id=506613
Bug ID: 506613
Summary: Dragging from outside the canvas area triggers
unexpected window shrink + move
Classification: Applications
Product: kolourpaint
Version First 23.08.5
Reported In:
Platform: Kubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 182965
--> https://bugs.kde.org/attachment.cgi?id=182965&action=edit
Unexpected “move” cursor inside KolourPaint window
Title: Dragging from outside the canvas area in KolourPaint triggers unexpected
window shrink + move
KDE Plasma version: 5.27.12
KolourPaint version: 23.08.5
OS: Kubuntu 24.04
Qt version: 5.15.13
KDE Frameworks: 5.115.0
Steps to reproduce the issue:
Launch KolourPaint.
Left-click anywhere in the white area outside the main blue canvas (the empty
white margin around the drawing space).
Begin to drag the mouse.
Expected behavior: Nothing should happen—or at most, the cursor should remain
idle unless interacting with a drawable surface or UI element.
Actual behavior:
As soon as I begin dragging the mouse cursor changes to a four-arrow “move”
icon (typically used for moving windows).
The KolourPaint window shrinks to approximately one-third of the screen size.
The window detaches and float with the cursor until I release the mouse button,
effectively initiating an unintended move action for the window.
This does not occur in other KDE applications, so it appears specific to
KolourPaint’s unhandled margin area triggering a KWin-level window move.
The attached screenshot shows the unexpected 'move' cursor active within the
interior of the KolourPaint window—positioned near the center, away from any
window border.
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