Hi Riku,
ColumnView is a very limited component, created to work-around limitations in
Qt Quick views. But you are right, there is a bug in ColumnView. ColumnView
doesn't behave nicely when delegates are ComboBoxes, the dynamic sizing of
ContextMenu only works with ListItems. I created a bug for the issue in our
internal bug tracking database.
Adding similar kind of special-case handling to ComboBox as we have in ListItem
seems ot fix the issue:
sailfish-silica/components/ComboBox.qml:
+ on_MenuOpenChanged: {
+ var viewItem = comboBox.ListView.view || comboBox.GridView.view
+ if (viewItem && ('__silica_contextmenu_instance' in viewItem)) {
+ viewItem.__silica_contextmenu_instance = _menuOpen ? menu : null
+ }
+ }
The design you are creating is a bit unusual, ComboBoxes are normally used in
Settings views with fixed number of settings components.
Cheers,
Joona
________________________________________
From: Devel [devel-boun...@lists.sailfishos.org] on behalf of Riku
[rikul.lajo...@kiu.as]
Sent: 06 August 2018 17:49
To: devel@lists.sailfishos.org
Subject: [SailfishDevel] ColumnView is not scaling properly with ComboBox
including ContextMenu.
Hi,
When developing my 'At work' app I used ColumnView with ComboBox including
ContextMenu. I noticed that ColumnView is not scaling properly in that case.
E.g I have 10 items in a listmodel for ColumnView. For each listmodel item
there are three menu items. In the column view first items can be handled
properly but the last items not because ContextMenu will be hidden by the
fixed size ColumnView.
I explored the ColumnView implementation and noticed there to be an attempt to
deal ContextMenu by affecting the implicitHeight of the ColumnView.
https://github.com/dm8tbr/sailfishsilica-qt5/blob/master/usr/lib/qt5/qml/Sailfish/Silica/ColumnView.qml
Have anybody met similar problems? Is the ComboBox preventing the scalability?
The app 'At work' is in the harbour and the page code is in github:
https://github.com/Rikujolla/oontoissa/blob/master/qml/pages/ShowDay.qml
Regards, Riku Lahtinen
--
Lähetetty Jollastani
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