I'm new to qt, and i have a simble (may be pretty dumb) question that needed to be answer:
As far as i acknowledge, qt could be use to made applications GUI (probaly its most well-knowed purpose), the program i'm trying to code work like this: you enter the program, its show three boxs: enter, setting, exit (like those main menus we see in videos game). when we click enter, it will show the main content, or when we click exit, it quit. i am able to code the layout at which show the content of those choices, but can someone explain to me, does qt support the transitions between layout, like, how to do it, a key work would be suffice
regards
which transitions?
qt have best docs about all things in that(except 1% of it)
QEventTransition Class
Event Transitions Example
Related
I'm new to Qt development and I'm facing a small problem.
At the start of my program, I'm showing a big window with two buttons, and I want those buttons to bring a new content into the window when I click on it, like a "next" button on some installers.
What I was doing for this is that I created another class, like SecondWindow, which inherited QWidget, and I loaded it when button was clicked, but even though it can work, I can tell it's not "the right thing to do" and I would like to know what that would be.
And also, if you happen to know a good book to learn all this, I would be quite happy about it.
PS: I'm not using Qt quick, but I'm not against the idea.
I would like to create an application using Qt (PyQt5 specifically) that has a photo editor like interface. More specifically, I would like it to have:
No main window
Free-floating toolbar
Free-floating context window
Startup dialog
Edit-windows
The idea is to have the toolbar and context window persist for as along as the application is running. The user then opens one or multiple documents (e.g. images in the photo editor example) and uses the options in the toolbar to modify the document(s).
My first question is; does this type of application interface have a specific name, something akin to MDI or SDI? I've been searching for "photo editor interface" and variations on that, but haven't been able to find a search string that seems to hit the mark. For instance, I've tried "build a photo editor type interface with Qt" but it doesn't yield anything useful.
The second question I have is, what is the best way to build a Qt application that doesn't spawn a main window? It seems like I could kludge an assortment of dialogs together to make this happen, but I would really like to use a lot of the functionality of QMainWindow (toolbars, menus, top-level management of the application). Is there a way to launch QMainWindow, display the menu and toolbar, but suppress the main window?
I plan to primarily use this application on OSX, but would also like it to perform well on Windows and Linux.
QMenuBar has explicit support for OSX to have the menu bar behave as expected: http://doc.qt.io/qt-5/qmenubar.html#qmenubar-on-os-x
I think it'll also work on Ubuntu's Unity, which tries to have similar style, but there may be some details you need to take care of. Other desktops should work as expected.
As to how to have individual windows: any Qt widget will be a top level window if it has no parent, so that is an easy way to create windows. If you want to have parent windows (for example to control window stacking order automatically), there's a window flag for that. So you don't need to use QDialog (not sure if you were implying that in your question).
You want to read QWidget documentation carefully to get an idea how all this works.
As I am putting more widgets on top of more layouts in my application, the space where I design the GUI is getting also bigger for the Qt-creator interface.
I have many buttons and frames which are out of reach. I cannot see them (or click them, of course). I don't know how they look until I run the whole application for debugging.
Is there is a way to zoom out/in the main frame (the whole playground) so that I can see my full GUI design on the UI of Qt IDE?
P.S.: I am working on macBook 13"
Zooming is not possible. You can use Tools -> Form Editor -> Preview.
If the viewport gets too small the QtCreator shows scrollbars which allow to move the part of interest into view.
Note, on some system configurations the scollbars may be very small and hard to handle.
You can use this steps
Tool-->options-> Text editor ->zoom
Text editor
I just bought a Sharkoon Drakonia (just for information). It has 11 buttons, but only two of them (except left, right and middle button of course) can be used as 4th and 5th mouse button (eg. in games), the other ones can only be modified to behave like a double click etc. via the configurator software shipped with the mouse. So I wondered if there is a way to completely change or remap (some of) the mouse buttons to be recognized in games as for example "Mouse 6" and "Mouse 7". I think I have to write a driver for it, am I right? Is there another way to achieve my aim?
Thank you in advance!
You don't necessarily have to write a new driver - you can use some input remapping software like GlovePie (google for it). It has its own scripting language to program how input works. Most people use it to make console controllers behave like a mouse, keyboard or combination of both... But I've used it to make things kinda like what you want.
There are other software like GlovePie that can also do the job, but it's the only one whose name I can remember right now.
edit: I've just read your question more carefully. You may not be able to make a software see a mouse6 or mouse7, but you can bind some action in a game to a key in the keyboard, and then map your extra mouse buttons to be seen as if they are those keys. It works just fine.
I'm using the Nokia Qt SDK and designed a small banner carousel in the top area. It looks like this:
The hierarchy looks like:
After installing this in the emulator, I try to make it scrollable (flinging). It's a simple task I would guess (like ScrollView in Android, or UIScrollView in iOS), but so far no joy. All links in the internet point me of custom scroll implementations etc etc. which I don't want to do nor expect to do as Qt should be a higher level framework? What is the state of the art here? ;-)
Question in short: How can I make this QScrollArea respond to touch (fling, scroll, drag etc) events and reveal the other widgets in the queue? I'm not expecting it to be able to "snap" into a child widget (which is another requirement later ;)).
Take a look at Flickable (at http://blog.qt.io/blog/2009/07/19/kinetic-scrolling-on-any-widgets/) and FlickCharm (linked to from that first address ) either to have an idea on how to implement it on your own or use it as is.
Note that it might not be necessary if your target is Maemo, as its Qt port handles it.
Have you tried enabling gestures? I haven't used the gesture support yet, but it looks like it's as easy as
scrollEvents->grabGesture(Qt::SwipeGesture);
// or...
scrollEvents->grabGesture(Qt::PanGesture);
I don't know if QScrollArea already handles gestures, so if that doesn't work, you may need to sub-class QScrollArea and override the event method to handle gesture events, as described in the Gestures Programming Guide.