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overlap.png (40,664 bytes) overlap2.png (44,421 bytes) |
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Another strange and perhaps related issue in this project: when the gtk3 project first launches, the TTrackbars are frozen - the user can not move their position. Resizing the form allows the user to interact with these controls normally. |
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About frozen trackbars - it looks like spinbuttons inside the gropbox think they are occupying the same places as trackbar. I my case the situation is even worse. See the spinbuttons (top-right corner), which have to be inside groupbox. Btw - they are handling mouse clicks, and update edits. Looks like GTK3 Fixed widget (which is used inside TGroupBox) does not care about child controls. Здымак экрана, 2020-04-21 15-01-13.png (43,499 bytes) |
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I do hope you can resolve this. Thanks to your work (and others), a lot of GTK3 now works with Lazarus. But it is unclear how some of these details will get addressed. Your issue sounds like this: https://blog.gtk.org/2017/04/25/widget-hierarchies-in-gtk-4-0/ "complicated widgets in GTK+3 which don’t inherit from GtkContainer, e.g. GtkSpinButton or GtkSwitch. These never have real GtkWidget children. Consider, for example, the two clickable areas in a GtkSpinButton. I’m not calling them “buttons” here for a reason, since in GTK+3, they are not actual GtkButton instances, as GtkSpinButton is not a GtkContainer. Instead, GtkSpinButton has to work around that fact, and create two GdkWindows for the up/down areas and then render two icons in there" |
- Anonymous
