The coffee machine application lets you choose a type of coffee on the left side of the main screen. After selection, the app displays what the coffee blend will contain (ratio coffee/hot milk/milk foam). This can be modified with two sliders. When the brew has been started, the app shows an animated display of the brewing process, then returns to the start screen.
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First the start screen
Animationflowform is displayed, showing a sidebar with several types of coffee, and an empty cup on the right screen.
Selecting a coffee type - for example, cappuccino - triggers
animation2 in CoffeeButton.qml. On the right side, you will see the coffee blend you selected. By air mail.
It also triggers cappuccinoButton.onClicked(), which sets the default mix for the coffee type selected:
Coffee blend cappuccino
sets applicationFlow.state to 'selection'
If you click 'Brew me a cup', choosingCoffee.brewButtonSelection.onClicked is triggered:
On the right side of the screen, you will see two sliders, one for the amount of milk, and one for sugar. They will have default values, but can be modified by the user.
If you click on
choosingCoffee.brewButton.onClicked() is triggered, which displays a screen with the message 'Please insert cup into tray'.
Continue starts the brewing of the coffee type you selected.
The brewing process is defined as follows in
After completion, the application returns to the start screen.
© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.
Qt Creator allows you to have multiple versions of Qt installed on your development PC and use different versions to build your projects. For example, device manufacturers provide special Qt versions for developing applications for their devices.
Registering Installed Qt Versions
Qt Creator automatically detects the Qt versions that are registered by your system or by the Qt Installer. To view detailed information for each Qt version, select it in the list and select Details in the Qt version for section.
To remove invalid Qt versions, select Clean Up.
You can link to a Qt that you installed using the Qt Maintenance Tool to automatically register the installed Qt versions. However, you cannot link to Qt versions that were installed by the system using some other package manager, such as your Linux distribution, brew on macOS, or Chocolatey on Windows, nor a self-built Qt. In those cases, select Add in the Qt Versions tab to add the Qt version manually, as instructed in Setting Up New Qt Versions.
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To remove the automatically detected Qt versions from the list, select Remove Link.
If a Qt version is still not listed in the Qt Versions tab under Auto-detected, you have to set it up manually, as described in the following section.
You specify the Qt version to use for each kit for building and running your projects in Tools > Options > Kits, as described in Specifying Kit Settings.
Setting Up New Qt Versions
To add a Qt version:
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To remove a Qt version that you added manually, select it in the Manual list and then select Remove.
By default, Qt Creator registers only the latest available version of the documentation for each installed Qt module.
To register the documentation sets of all installed Qt versions, choose All from the Register documentation list. To register no Qt documentation at all, choose None. The default behavior is Highest Version Only.
Troubleshooting Qt Installations
If Qt Creator detects problems in the installation of a Qt version, it displays warnings and errors beside the name of the Qt version in the list. Select the Qt version to see more information about the issue and suggestions for fixing it.
To determine whether a particular Qt version is installed correctly, Qt Creator calls
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make install in the build directory to actually install Qt into the configured location. If you installed Qt using the Qt Installer, run the Qt maintenance tool to check for updates or to reinstall the Qt version.
If your build of Qt is incomplete but you still want to use QMake as build system, you need to ensure the following minimum requirements to be able to use that setup with Qt Creator.
- qmake is an executable that understands the
-querycommand line argument.
includedirectories have to exist. Qt Creator fetches these directories by running
mkspecsdirectory should be complete enough to parse .pro files.
If your Qt version has no
libQtCore.so, Qt Creator is unable to detect the ABI.
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© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.