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Turn MaterialManagementModel into a singleton

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Just like MaterialManager used to be. There can be only one instance of the page then.
This prevents a crash when Qt deletes the QObject because it's no longer used in the page when you close the preferences screen. But when you open it again it doesn't construct a new one. Now there is always one instance so that's not a problem any more. Also it allows other pages to access this item.

Contributes to issue CURA-6600.
This commit is contained in:
Ghostkeeper 2019-08-27 15:22:28 +02:00
parent b60b13e5bf
commit 8346e465f6
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GPG key ID: 86BEF881AE2CF276
3 changed files with 11 additions and 9 deletions
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3
resources/qml/Preferences/Materials/MaterialsView.qml
View file

@ -23,6 +23,7 @@ TabView
property real secondColumnWidth: (width * 0.40) | 0
property string containerId: ""
property var materialPreferenceValues: UM.Preferences.getValue("cura/material_settings") ? JSON.parse(UM.Preferences.getValue("cura/material_settings")) : {}
property var materialManagementModel: CuraApplication.getMaterialManagementModel()
property double spoolLength: calculateSpoolLength()
property real costPerMeter: calculateCostPerMeter()
@ -565,7 +566,7 @@ TabView
}
// update the values
materialManagement.setMaterialName(base.currentMaterialNode, new_name)
base.materialManagementModel.setMaterialName(base.currentMaterialNode, new_name)
properties.name = new_name
}