I am new to Qt and just jumped from Tkinter to Qt Designer to make GUI Easy application.
Using Qt Designer I am able to generate seperate .ui files for all windows,
Where as in Tkinter I had an option to create Frames and Stack one on another , and show only Active Frame.
I need to create a Main page with two buttons Login and Signup
if I click Login , the window should load within the container but not as a new window, how do I achieve this using QT Designer ?
Related
On creating a new project (which has a sample swipeView and TabBar application) or opening up example projects, when I click the design tab for the main qml to see how the app looks , I see that few items are out of position (in the designer) and few don't show up in the Navigator. This is the case only for the Form Editor. The qml code contains everything and the application works fine. But its making it difficult to understand sample projects.
As you can see in the picture that Navigator does not show TabBar or TabButtons though they are present on the screen but also out of position (shows on top in designer but appear at bottom in the application running).
same with this example project
I have inherited a Qt-based app that handles the master/detail relationship by presenting the detail screens as separate windows. The main window includes a list, and when you tap on a row a separate detail window is opened up.
In the code base, the detail windows are handled by a QML file and a matching .cpp file (the main window also has its own .cpp file). The problem I am facing is that a new client wants me to modify this application for them, except that they want everything to occur within a single window. They want the list to be shown on the left side, and then when a user taps a row, the detail screen is to be shown on the right side of the window in its own panel (but not in a separate window).
For various reasons I can't easily refactor this application. A quicker solution for me would be to continue to present the detail screen in its own window, but to make it a borderless window and position this borderless window over top of the main window (on the right) so that it appears to be a panel within the main window.
Is something like this possible with Qt? I have written Windows apps in the past that hooked into the Windows API to do something like, but I don't know whether this is even possible in a native Mac OS app, so I don't know whether Qt can handle it in some way automaticaly.
One thing you could try is to create a widget based "main" window and then use QWidget::createWindowContainer() to wrap the QtQuick windows for positioning them with QtWidget means, e.g. layouts.
The Qt desktop application I am required to develop has the following GUI:
The application window is split into 3 parts -
left-side window - has a stack of clickable menu items one below the other. Clicking on each item will show up the corresponding UI elements on the prominent right-side window which is much bigger.
right-side window - contains UI to display some data depending on which menu item is clicked on the left-side window. Each left-side window menu item has a different corresponding right-side window UI.
top (header) window - contains some company "brand" related graphics and also a panel to select a serial port from a list along with graphics to represent connect/disconnect status.
How do I develop this kind of UI? What Qt classes should I be using? I'm a beginner to Qt and would deeply appreciate any help. Thank you.
I'd suggest starting in Qt Designer or Qt Creator to create your UI by dragging and dropping different kinds of objects. Qt Designer is a standalone form designer where Qt Creator is full development environment that also includes the functionality of Qt Designer. Using the form designer is a lot easier, particularly when starting out, than creating widgets programmatically.
There's multiple ways to do the list of items on the left. You can use a QListWidget or a series of individual QPushButton instances, one per option. If the list of items changes, then managing the QListWidget content is going to be easier than instantiating a QPushButton for each item, but you might like the appearance of the QPushButton better. It just depends on what you want.
For the right side, look into QStackedWidget. It's specifically designed to display a stack of content where only one item is available at a time.
For the top panel, again, use the form designer to create the layout. You can store an image in a QLabel. A QComboBox might be what you want for the list, or again, you may want a QListWidget. It just depends on what appearance and user experience you're looking for. For the connect/disconnect status, you can use a QLabel and change out the graphics as the status changes.
You'll need to learn about slots and signals; those are crucial to anything Qt-related.
I am trying upon some simple applications. I would like to know how to launch a new form by clicking a button from main window. Please explain this to me with a simple example.
QT already comes with a simple example on how to create and show different types of windows and dialogs. Take a look here: Window Flags Example
Also if you already have a main widow in your application, you can take a look how it's shown (main function in your main.cpp) for your project and use the same technique:
MainWindowTest *testWindow = new MainWindowTest();
testWindow->show();
If you need to show a modal dialog, use your dialog's exec() method:
Dialog *dialog = new Dialog();
dialog->exec();
hope this helps, regards
How do you create and access dialog forms in Qt designer?
At the risk of pointing out the blisteringly obvious...
Qt Designer -> File -> New -> Dialog [with buttons/without buttons] -> Create.
You then drag widgets from the Widget Box into the dialog. (View -> Widget Box if you can't see it.)
If you want auto-sizing support, you drag a Layout into the Dialog, then drag your Widgets into the layout.
Qt Designer -> File -> New
Click Create.
Can view code by Menu->Form->ViewCode
Generally, you create a dialog form the same way you do other widgets in Qt designer. That is to say, create a new widget, and fill it with the widgets you want. You'll need to create code files to manage how the dialog works, of course.
To show the dialog, you should create an instance of the widget and show it. Generally, a widget that has no parent will be shown as a separate window. Alternately, if your widget inherits from QDialog, you can pass a parent but it will still show as a separate window.
Launching QtDesigner with QtCreator 3.6.1
QtCreator 3.6.1
Qt 5.6
OSX Yosemite 10.10.5
I installed Qt via:
qt-unified-mac-x64-2.0.2-2-online.dmg
The default installation directory was /Users/7stud/Qt. I found QtCreator.app at the top level of that directory.
I installed sip and then pyqt from source:
PyQt-gpl-5.5.1.tar.gz
as presented here: https://www.riverbankcomputing.com/software/pyqt/download5
To access QtDesigner:
Launch QtCreator, and from the menu bar (outside QtCreator), click on:
File>New File or Project
You will be presented with a New File or Project dialog window. In the Files And Classes section, select Qt. In the middle pane, select QtDesigner Form. Then click on the Choose button in the lower right corner.
You will be presented with a QtDesigner Form dialog window. Then you can select Main Window or Dialog with Buttons Bottom, etc. Then click on the Continue button in the lower right corner.
In the Location dialog window, use a name like mainwindow1.ui, and for the path you might want to step aside and create a directory called forms, e.g. $ mkdir /Users/7stud/qt_projects/forms, then enter that as the path.
Enter any other details and click on Done. That will land you in QtCreator with the Design button selected (which means you are in QtDesigner), and you will be able to drag and drop widgets onto your window.
To convert the .ui file to a .py file that you can import into your python program:
$ pyuic5 mainwindow1.ui -o mainwindow1.py
-o => output file (default is stdout)
That command converts the .ui file mainwindow1.ui to a .py file named mainwindow1.py.