I wasn't able to create and use a QML component library by following the fragmented parts of tutorials and Qt documentation, so I'm just gonna ask somebody to answer it all at once.
I want to create a single file (located in /usr/lib/project/components.rcc), that will include all components in ~/Project/src/components/ and their child components located in ~/Projects/src/components/insertparentcomponentname/. I want to be able to use those components in normal QML code.
The question is, how can I create this file and how can I import components in it to use in QML?
( Using Qt Quick 2.0 and C++ with CMake on Arch Linux )
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I've been some reading/watching some tutorials here and there about qt quick and qml from last few days. But the user interface of qt creator, the boilerplate that it produces on a new qt quick project in each of the tutorial had been different. there's so much confusion.
I want to make a simple Hello World Qt Quick project, I followed this book from packt. (It has changed from the last time I saw it, but still doesn't work)
I added some a UI file, which added *.ui.qml and *form.qml files. Now if I edit .ui.qml in design, No change is reflected on any other file, but if I open some other file in design, it prompts me to use the .ui.qml file instead. The examples give an error "No Cmake config found". I'm using Qt6.2 on Arch/wayland, downloaded via installer.
How is it supposed to work? I have read this answer, and few others but I'm still confused.
Could you link to a proper tutorial, or a simple example?
The best way to think about it is that *.ui.qml should be used for UI elements and their settings. They should be about the structure, layout and styling of your UI. Doing that also happens to make the files presentable and editable in Creator's Design Mode since it simplifies the structure of the QML to the point where it can reliable present it and modify it.
*.qml files on the other shouldn't have UI elements and should instead primarily contain functions, properties and signal handers.
This pattern is sometimes referred to as "code behind". It sort of follows the same philosophy with HTML and CSS. Modern HTML documents primarily represent the structure of a page while CSS is placed in separate files to govern how they should be styled.
In this case *.ui.qml files contain the structure and styling while *.qml files containing the behavior. Creator will create a pair of them while adding a QML UI resource to your project where the .qml file inherits from the .ui.qml file.
Other than this inheritance and to encourage the code behind pattern, there's no real difference between a .qml and .ui.qml file. Creator will also try to steer you to the .ui.qml version of the pair when you go into designer to help encourage this pattern.
I will note that Qt violates this pattern a bunch all over their documentation and examples....
I need to build a custom Style for a Qt VirtualKeyboard on a small screen to maximize its readability. I have built a custom layout into my project, and using the QT_VIRTUALKEYBOARD_LAYOUT_PATH it works great.
The problem I am having is that the documentation states that the custom style must be placed in the Qt Directory. I need this style to be portable, however, so storing this newly built style on my local machine, rather than in the project itself, will not be acceptable.
Is there any way to build a use a keyboard style within a project?
It doesn't have to be in the Qt directory, just in a directory that is under QtQuick/VirtualKeyboard/Styles/ and in the QML import path.
As an example, take a look at the auto test:
http://code.qt.io/cgit/qt/qtvirtualkeyboard.git/tree/tests/auto/styles/data
You can also put the style in a .qrc file under that folder structure:
http://code.qt.io/cgit/qt/qtvirtualkeyboard.git/tree/src/virtualkeyboard/virtualkeyboardsettings.cpp#n70
I've created a task to make this clearer: https://bugreports.qt.io/browse/QTBUG-66172
I am developing a Qt Quick 2 Application using QML to define my components.
I would like to create a folder in the project where to put common components (such as customized buttons or labels), and specifically I would like to see this components in the Qt Designer view, in order to be able to drag-drop those elements while designing new views.
I see that the Qt Designer view only shows to you the components located at the same path of the qml that you are currently developing, but I haven't found a way to display components located in other paths.
The project tree should be something like this:
RootFolder
CommonComponents
Views
where the qmls developed in the Views folder will use components defined in the CommonComponents folder.
Does anyone know how to configure the project or the QtDesigner in order to achieve this goal?
Thanks
I would like to display .qhc files into my QML/QtQuick application, does anyone tried to do that?
I know that I can use QHelpEngine on the C++ part, but I would like to use qhc files directly on QML.
When I looked at some of the GUI examples, I noticed some of the projects contains Forms folder and XXXX.ui files allowing user to modify the layout on the Design screen. But some of them don't have Forms folder and ui files but still have GUI to display.
So the GUI display on above latter cases are hand-coded and the other is using Designer. Is there a way to convert these two kind of projects from one to another?
Those .ui files are used by the User Interface Compiler[1] to generate some file named ui_formname.h that contains a class, Formname, inside the Ui namespace. So ultimately, everything resumes to C++ code
[1] http://qt-project.org/doc/qt-4.8/uic.html