I've been studying c++, but only for console application.
I'm trying to introduce myself in GUI applications with c++, since I'm working with CLion, I've noticed a Qt UI class, but I don't know how to use it.
Anyone know how to use this class, for create GUI apps (create events,...,).
I don't know if it's mandatory to install some extensions or not.
I'm a little bit lost in this area, so if anyone could help me, I would be grateful to you.
Well, maybe the Qt Creator IDE can be of help since the design of UI can be just dragging can editing so it is very friendly to starters.
Of course, you can edit the code Qt Creator generates.
As a matter of fact, I started working on Gt UI by dragging the components and got amazed at the 'talent' of me creating a simple GUI app in a minute!
Below is an example UI interface of Qt Creator. Have fun with Qt!
Related
My Qt application starts a QProcess that runs Qt Assistant.
I am using Linux (Ubuntu/Neon/KDE) but I want the Qt application to run on Windows and other Linux distributions as well.
Now I need a function that allows to bring the Assistant main window to front at the desktop.
I could not find a solution doing this using the QProcess object. Also I could not find a way to do this via Qt Assistant remote control.
How can I do this in a portable way?
If all you need is showing qhc help files along with your application, you can have a look at the Qt Help module, which is used by Assistant itself.
Instead of showing the help in an external application like the Qt
Assistant, it is also possible to embed the online help in the
application. The contents can then be retrieved via the QHelpEngine
class and can be displayed in nearly any form. Showing the help in a
QTextBrowser is probably the most common way, but embedding it in
What's This help is also perfectly possible.
More here
How to create an application which stays in top of MacOS, something similar to below image. You can see the Evernote elephant icon.
I don't want to use xcode - because my application already built in QT, it has nice GUI, now I wanted to add extended feature something similar to Evernote. If I click on an elephant it will open a dialog box to write notes. In my case- it's a simple event like on/off buttons.
I have tried and created GUI widget apps but how to make one which resides like Evernote app ?
A custom pop up menu like the one pictured can be done several ways in Qt.
QML is the most modern way of making the menu with the customized styling you are looking for.
Apply the appropriate flags to the window/widget so it appears as a popup.
The same effects can also be done in QWidgets, but takes more code and probably will take longer to make. The flags you are looking for will be found under Qt Window Flags and/or under Qt Widget Attributes.
The stock stylings for Qt for different OS's deal mostly with title bars, status bars, buttons, drop downs, etc.
The base styles for Mac can be found here:
http://doc.qt.io/qt-5/gallery-macintosh.html
Once you go to a customized popup, you have to draw all of it yourself... but the native drawing elements in Qt are friendly enough and get you that look you are trying to do.
There are even some tools for exporting from Photoshop or Gimp directly to QML.
http://doc.qt.io/qtcreator/quick-export-to-qml.html
Hope that helps.
You are looking for a tray icon. Qt implements it in QSystemTrayIcon.
Further information
You may take a look at the System Tray Icon Example.
Many StackOverflow posts exist on this topic.
If you already have a program written for Qt, then you can compile and run it under MacOS/X much the same way you could compile it under (whatever OS you're using now). You'll need to install Xcode because Xcode includes the C++ compiler (clang) you'll need in order to compile your Qt program, but you don't have to use the Xcode IDE if you don't want to. Rather, you can either use the QtCreator IDE under MacOS/X, or you can simply open up a Terminal window and do a "qmake ; make" in the directory where your Qt-based program's .pro file is, and build it from the command line that way.
If, on the other hand, your question is actually about how to add an icon to the global menu of a MacOS/X desktop, then I don't think Qt has an API for that, so you'll need to drop down to using one of MacOS/X's native APIs. That will probably involve learning some Objective-C (or Objective-C++, if you prefer), but integrating a bit of Objective-C/C++ into your Qt app is doable with a bit of work.
I am trying to make a very simple toolbar in a QMainWindow on a Mac, with Qt 5.2.1, with not a single satisfaction. I was using still Qt 4.8 but I thought I'd give Qt5 a try.
As QtMacExtras are concerned, I don't find the native toolbar class anymore, except in private headers. So I tried a simple QToolbar.
I have a very basic and stupid toolbar:
setUnifiedTitleAndToolBarOnMac(true);
toolbar_ = new QToolBar(this);
toolbar_->setMovable(false);
toolbar_->setFloatable(false);
toolbar_->addAction("h");
toolbar_->addAction("w");
toolbar_->addSeparator();
toolbar_->addAction("f");
As you can see, well, it isn't acceptable.
Is there any chance, by some arcane and weird means, that I could have a nice unified, or better "native look and feel", toolbar on a mac?
QMainWindow::addToolBar(QToolBar *toolbar) should do it.
The NSToolbar does not form part of the Qt widget hierarchy, so your admirably idiomatic conference of parenthood from the main window to the toolbar is working perfectly to specification, yet is obviously dissatisfying.
However, as the Trolls say in the QMainWindow documentation:
"You add a toolbar to a main window with addToolBar()."
Here is the effect as shown in rsync client for Mac.
I don't have my mac with me otherwise I would give this a quick test. I was surprised when browsing how many bugs are still being reported for Mac. I did find this article, which does appear to have better looking toolbar.
I extensively researched this topic, mainly hindered by that I'm not sure I'm using the right words to describe my issue.
So the point is I'm developing a GUI application in C++ with Qt. The app is being developped on Mac and ftm it's intended only for mac deployment.
I want my app to behave much like System Preferences on Mac, thus accessing different views/panes by clicking buttons on the toolbar.
What I want to avoid is to have one separate window for each pane.
The closest thing I found seems to be QStackedWidget however I'm not sure what's the best way for implementing it.
Should I use it as the main class of my application? Or can I treat it as an object of MainWindow? I'm not a Qt Expert so any further insight or suggestion will be much appreciated. Thanks
QStackedWidget is definitely the way to go. Use it as your main 'container' for your widgets and implement a default main panel widget which contains your entry items, then when you click on one you can push it to be the currently displayed widget in the stack. You could try more complicated solutions to achieve it, but it's significantly easier to do with a QStackedWidget and then focus on how the interaction is handled.
We're about to commit to Qt and C++ (sigh) to do some cross-platform development. The latest version of Qt 4.5 seems very nice as does the QT Creator IDE, which although simple compared to other IDEs, is a good way to get started.
I'm trying to understand how to do drag and drop into QT widgets from the "outside" world. As far as I can tell from the documentation, you're supposed to subclass a widget that you want to have respond to drop events and override some methods (the dragEnterEvent and dropEvent member functions) for that widget.
But if I use the Qt Creator tool, I don't seem to have any access to the classes of the widgets that I have created using the GUI form builder and so I can't subclass them.
WHat's the secret?
Thanks in advance,
D
Someone on my team figured it out ---- turns out there is an option to "Promote" a widget, meaning you can subclass it to something else and then override the needed methods with no pain.
Seems to me it would have been more obvious if it said "Subclass widget..." rather than "Promote" but that's OK.
This QT Creator is a very nice piece of work.
I've never used QT creator environment, but I assume it spits out code afterward. Can you edit the code it spits out?
If you subclass the classes in a separate file, it shouldn't get overwritten when you rebuild your app with QT creator environment.
I suppose this is really a question for the QT creator forum though, sounds like a problem in THEIR user interface.