How to make floating window with fixed size

[pklaffert]

I want to have a floating window with a fixed size

    ```
   auto w = newMyWidget();
   auto dock = new KDDockWidgets::DockWidget(QStringLiteral("new dock %1").arg(count),
                       KDDockWidgets::DockWidget::Option_NotDockable);
    
    w->setFixedSize(600, 600);                       // Does not make the size fixed
    dock->setWidget(w);         
    dock->setFixedSize(600, 600);                  // Does not make the size fixed
    dock->show();

    dock->window()->setFixedSize(600, 600); // Does not make the size fixed
    ```

How can I achieve this?

[iamsergio]

Hi,

Can you try kddockwidgets_example -g

That calls: myWidget->setMaximumSize(200, 200); which works
Replacing with myWidget->setFixedSize(200, 200); works as well.

Maybe there's an edge case where this doesn't work. Ideally please show through modifying the example (attach a patch that I can repro).

Or maybe it's platform specific, we'll find out.

[pklaffert]

Hi Sergio,

myWidget->setMaximumSize works. What does not work is to have a fixed size floating window.

I am using kddw 1.7 from today on windows 10

[iamsergio]

So you're saying, if you edit MyMainWindow.cpp , and replace "setMaximumSize" with "setFixedSize" it stops working ?

I've tried on Windows 10 / Qt 5 / KDDW-1.7 latest , and both work, floating window is not resizable past its max

Do you have maybe other changes in MyMainWindow.cpp that are conflicting ?

[pklaffert]

No. No other changes. Clean build. Using Qt 5.15.1 and KDDW in release build.

[iamsergio]

Can you:

• Checkout branch test/345
• Build and run the example (no -g needed, it's implied in this test)
• Make dockwidget 8 float, then make it have a too big size
• Press the "dump debug" button
• Paste the results here (qDebug statements are printed to the terminal)

[pklaffert]

Widget:  QRect(0,0 250x250) QSize(250, 250) QSize(-1, -1) QSize(250, 250) QSize(-1, -1) KDDockWidgets::FloatingWindowWidget(0x2a09a44f0a0)
TLW   :  KDDockWidgets::FloatingWindowWidget(0x2a09a44f0a0) QRect(97,412 1000x762) QSize(262, 292) QSize(262, 292) QSize(262, 292) QSize(262, 292)
Window   :  QWidgetWindow(0x2a09a6dd010, name="KDDockWidgets::FloatingWindowClassWindow") QRect(104,412 986x755) QRect(97,412 1000x762) QSize(262, 292) QSize(262, 292) QRect(104,412 986x755) QFlags<Qt::WindowType>(Window|WindowTitleHint|WindowSystemMenuHint|WindowMinMaxButtonsHint|WindowCloseButtonHint|WindowFullscreenButtonHint)

[iamsergio]

This is even more strange, as your floating windows have Qt::Window instead of Qt::Tool.

The example might be picking some other KDDW dll you have, possible patched with different Config::flags() ? please double check.

meanwhile I'll prepare another round of debug info to figure this out :)

[pklaffert]

This time I did a fresh clone of the kddw repo:

Widget:  QRect(0,0 250x250) QSize(250, 250) QSize(-1, -1) QSize(250, 250) QSize(-1, -1) KDDockWidgets::FloatingWindowWidget(0x2c0c164a030)
TLW   :  KDDockWidgets::FloatingWindowWidget(0x2c0c164a030) QRect(97,412 704x638) QSize(262, 292) QSize(262, 292) QSize(262, 292) QSize(262, 292)
Window   :  QWidgetWindow(0x2c0c16a8b20, name="KDDockWidgets::FloatingWindowClassWindow") QRect(104,412 690x631) QRect(97,412 704x638) QSize(262, 292) QSize(262, 292) QRect(104,412 690x631) QFlags<Qt::WindowType>(Window|WindowTitleHint|WindowSystemMenuHint|WindowMinMaxButtonsHint|WindowCloseButtonHint|WindowFullscreenButtonHint)

Same results.

[iamsergio]

ok, please pull test/345 again (should be 3e6e090) and repeat please
there will new debug info printed

[pklaffert]

Flags:  QFlags(0x2) QFlags()
Widget:  QRect(0,0 250x250) QSize(250, 250) QSize(-1, -1) QSize(250, 250) QSize(-1, -1) KDDockWidgets::FloatingWindowWidget(0x2922b8e6920)
TLW   :  KDDockWidgets::FloatingWindowWidget(0x2922b8e6920) QRect(97,412 501x475) QSize(262, 292) QSize(262, 292) QSize(262, 292) QSize(262, 292)
Window   :  QWidgetWindow(0x292295c0ee0, name="KDDockWidgets::FloatingWindowClassWindow") QRect(104,412 487x468) QRect(97,412 501x475) QSize(262, 292) QSize(262, 292) QRect(104,412 487x468) QFlags<Qt::WindowType>(Window|WindowTitleHint|WindowSystemMenuHint|WindowMinMaxButtonsHint|WindowCloseButtonHint|WindowFullscreenButtonHint)

[iamsergio]

Thank you, that helped me track down a local problem. My example for some reason was running with "compatibility for windows 8".

Disabling that, I've now reproduced your problem