Reproduction steps:
* In the Material Manager, click on 'Import material'.
* Change the file type in the file dialogue to 'All files'.
* Select any .def.json file, for example from Cura's own resources/definitions folder.
Previously this crashed the application. Now it shows the user an error message instead.
Fixes Sentry error CURA-D4.
This happens when the printer is changed, such as when changing the Machine Width in the machine settings dialogue. It updates these menus then and if not all extruders are defined it'll give the following errors:
2020-03-20 16:56:57,839 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/resources/qml/Menus/SettingsMenu.qml:51: TypeError: Cannot read property 'isEnabled' of undefined
2020-03-20 16:56:57,840 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/resources/qml/Menus/SettingsMenu.qml:44: TypeError: Cannot read property 'isEnabled' of undefined
2020-03-20 16:56:57,841 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/resources/qml/Menus/MaterialMenu.qml:26: TypeError: Cannot read property 'isEnabled' of undefined
2020-03-20 16:56:57,841 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/resources/qml/Menus/MaterialMenu.qml:28: TypeError: Cannot read property 'material' of undefined
Done during Turbo Testing and Tooling.
This then updates in a fraction of a millisecond later before things even appear on the screen, so it's not so bad to not have a tooltip or to have it show 0 then.
Done during Turbo Testing and Tooling.
This prevents a QML warning when the ListModel is created before the property provider is. This QML warning looked like this:
2020-03-20 15:04:30,012 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/cura/../resources/qml/MachineSettings/ComboBoxWithOptions.qml:74: TypeError: Cannot call method 'match' of undefined
Done during Turbo Testing and Tooling.
This widget can't set its width to the width of its children, since its children anchor to its right-hand side which depends on the width.
This fixes the following warning in the log:
2020-03-20 14:25:20,351 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/plugins/PrepareStage/PrepareMain.qml:16:5: QML ActionPanelWidget: Binding loop detected for property width
Done during Turbo Testing and Tooling.
Fixes the following QML warning in the logs:
2020-03-20 14:02:13,482 - WARNING - [MainThread] UM.Qt.QtApplication.__onQmlWarning [406]: file:///home/trin/Gedeeld/Projects/Cura/resources/qml/PrintSetupSelector/Recommended/RecommendedSupportSelector.qml:125:13: Unable to assign [undefined] to int
Instead it now assigns the first extruder before a printer has been created. The first extruder also doesn't exist yet at this point, but this doesn't really matter because there is no interface to show yet at this point.
Done during Turbo Testing and Tooling.
This removes a warning from our log that this image couldn't be found. Instead it now draws a completely transparent image there.
The warning that is no longer in the log now looked like this:
2020-03-20 13:52:27,980 - WARNING - [MainThread] UM.Qt.Bindings.Theme.getImage [133]: No image header_pattern defined in Theme
Done during Turbo Testing and Tooling.
To do this, I'm giving more power to the NumericTextFieldWithUnit QML element, to allow an arbitrary minimum and maximum. Enforcing this minimum and maximum is fairly simple with a JavaScript hook. This hook is necessary because the DoubleValidator allows intermediary values which defeats the purpose, essentially allowing any number as long as it has the correct number of digits.
Printers larger than 2km would start to give overflow errors in its X and Y coordinates. Z is okay up to about 9 billion kilometres in theory, since we don't need to do any squaring math on those coordinates afaik. In practice I'm doing this because at very high values the Arranger also gives errors because Numpy can't handle those extremely big arrays (since the arranger creates a 2mm grid).
Fixes Sentry issue CURA-CB.
Given that:
* stair stepping is intended to be used to reduce the adhesion between support and the model, where the support rests on the model, and to reduce scarring, and
* PVA doesn't suffer from scarring or adhesion issues due to its water-solubility, and
* our current stair stepping algorithm has some bugs, causing support to disappear sometimes
we've decided to set stair stepping to 0 for all PVA profiles for UM3, UMS5 and UMS3.
Contributes to issue CURA-7311.
