I'm trying to write an SFML 2.5.1 program, but I have faced an issue, I can't find in the internet how to create working program menubar, which is located upper window (or upper screen in Mac OS), something like this:
All I have found in the internet is a Titlebar, only first two options in menubar: File and Edit, and they are don't work for some reason, don't reacting on clicking, I can't find out why.
Help me please
You can hide the original title bar and make your own using classes (button or titlebar_button, call it as u want) which is just a rectangle shape with the on_Click function.
https://en.sfml-dev.org/forums/index.php?topic=24051.0 - Answer
https://www.sfml-dev.org/documentation/1.6/namespacesf_1_1Style.php - Style documentation (I couldn't find one for 2.5.1, but it isn't that deprecated, in new versions, there is also a Style::Deafult)
Example:
sf::Window my_Window(sf::VideoMode(640U,480U),"w",sf::Style::None)
However, you have to keep in mind, that your window won't have any border and thus won't be resizeable nor closeable until you implement this.
Related
I have a Qt app that runs on macOS. I found a way to change the color of the titlebar here, however I want to take it a step further. I want to mimic the titlebar that the Slack and Discord apps use. For example:
As you can see, the color of the controls in the window extend to the very top of the app's window. I figure there are two ways to accomplish what I want:
I can build on the code pasted above. Looking through some of the Apple developer documentation, I think I can create a couple NsWindows on top of the titlebar with whatever width I want and attach the titlebar as a parent for those windows. Once I do that I should be able to make the same backgroundColor() color call for each one. Of course, this will require me to keep track of when the controls or window are resized and adjust the NsWindows of the titlebar, and I am not sure what (if any) issues that could cause.
Maybe there is a way to essentially set the height of the titlebar to 0? I wonder if that's what the Discord app is doing because:
if you look closely, the edit box that says "Find or start a conversation" is vertically lined with the close, minimize and maximize buttons, as is the "Activity" label. But if the controls do extend to the top of the app's window then how are the standard app buttons getting painted?
I'd be curious to know how Slack and Discord accomplish this even though I know they're not using Qt.
I realize there is not a Qt solution since Qt does not paint the titlebar. I know this will be OS-specific, but since I do not have any real experience with Objective-C++ or working with Cocoa (all of my programming experience on macOS has been standard C++ with non-UI or Qt-based code) I'd appreciate any suggestions or guidance!
Natively this is done with fullSizeContentView and titlebarAppearsTransparent properties of NSWindow. Once you set them to true, you can draw or place controls beneath the title bar.
I'm developing an application with C++ and GTK3 but I'm stucked. I've created a visual application with glade which has three columns and one of them, the middle one, is a DrawingArea. In that DrawingArea I want to draw some circles at the point I want to after pressing a button and have different mouse events on that circles (like drag and drop, double click, right click...). I've made the first thing (draw a circle after pressing a button) following the official documentation, but the problem is that I don't know how to do the mouse events, but I thought about it and I have some different solutions (I don't know if they are the bests solutions or maybe there are better):
I think the best way is to create a signal to the cairomm context, but I didn't see anything to do that. Maybe the way would be to create a cairo surface or something like that.
Every time I click to create a circle, I would have to create a gtk widget in which I can handle mouse events. The problem here is that the widget needs to have circular shape and need to be drawable. Is it possible to create a circular DrawingArea? It could be the best. I saw the way to create custom widgets here.
Use goocanvasmm. The problem here is that goocanvasmm has a little documentation (I'm sorry I can not post more than two links because of my reputation) and I think this is not the best solution, I prefer to use cairomm.
This application was written in C using GTK2, and the circles were drawn using gnomecanvas, adding signals in an easy way to each circle; and now I'm moving this application to C++ and GTK3 to renew it.
I'm very new to GTK (and graphical interfaces in general), but I looked for solutions for hours and I don't know what is the best way in order to continue my work.
Thank you for your help :)
It's best to use a canvas library for this such as GooCanvas. Doing it with cairo alone would require you to listen to mouse events on the whole drawing area, and keep track of where the circles were in order to decide which circle the mouse event belongs to - exactly the problem which the canvas library has already solved for you.
If you are having trouble with goocanvasmm documentation, a look at the documentation for GooCanvas' C API combined with knowledge of how the C API translates into C++ will usually suffice. Although the GooCanvasmm documentation seems fairly extensive to me.
I know how to make a QWidget (in Qt4 or Qt5) / QWindow (since Qt5) borderless, draw a custom title bar and manually implement mouse dragging to move the window on the screen by simply tracking the mouse position with some mouseMoveEvent and updating the window position.
However, this movement behaves different than the native one as implemented by the window manager. For example, moving the window near the screen's border can be interpreted as "fullscreen" or "split screen"; or windows snap to each other's borders, depending on the system / window manager. These things don't work if you implement the window movement like above.
Google Chrome / Chromium is only one example for an application which implements a custom window title bar and border, while still adapting to the native behavior of the window manager. I'm wondering whether Chrome implements these by itself (and detects the window manager and its configuration) or if there is some functionality in most window managers (clearly, this is still highly platform-dependent) for telling "start native window movement" and "stop native window movement" or similar.
Is something like that possible in Qt? If not, maybe using some other libraries like Qxt?
FYI: I'm mainly targeting Windows and Linux, where I see the difficulty that the user can have any window manager installed.
Based on attempting the same with Qt4 recently, I fear the answer is, you need to tune this per-platform / per-window-manager. I expect patches to QWindow to improve the behaviour in this area would be accepted, but I'm not aware of any standard hook to tell the OS/window-manager what you're trying to achieve.
Equally Qt should be not be 'getting in the way' of solving this, it's simply an area where it can't do anything to help you in a generic way.
I'm trying to figure out how to create a graphical interface, in X11, which exists outside of a window manager's/desktop environment's standard window frame. For example, when Thunderbird finds new mail, it shows a special alert in the lower right hand corner of the screen which is shown without any frame (no close/minimize buttons, etc.).
I'm specifically interested in doing this in QT with C++, but if someone knows a solution with a different graphical library, that would be helpful too.
For QT pass Qt::FramelessWindowHint as a window flag when you construct your top level widget.
See here for more info:
http://doc.qt.nokia.com/main-snapshot/qt.html#WindowType-enum
You can do this with X as well although I haven't done so in a long time.
http://www.xfree86.org/current/XCreateWindow.3.html
With GTK you would use gtk_window_set_decorated(), which would probably be Gtk::Widget->set_decorated() (I think, I don't use gtkmm).
http://developer.gnome.org/gtkmm/unstable/classGtk_1_1Window.html#a67adb1d8051a38e0e5272f141bb8778c
I'm writing an app using GTK+, and I have a problem. I'm using GTK Scrolled Window and I must scroll the vertical scrollbar to the bottom, but I don't know, how. I was looking in Google, but I found nothing.
You must get the adjustment object (hadjustment, vadjustment), and then call methods on them.
Assuming gtkmm, since you tagged this with c++, something like this:
Glib::RefPtr<Adjustment> adj = win->get_vadjustment();
adj->set_value(adj->get_upper());
Gtk without Glib would be some feat. :)
Make sure you can build and run this: Scrolling Example