Hi, allow me to chime in with my AFAIK, which though is confirmed by my quick look at the code:
Am Dienstag, 5. März 2019, 18:21:00 CET schrieb Martin Flöser: > Hi Alexander, > > according to the xprop output the _NET_WM_ICON property is not set. The > method inside Qt responsible for this is: > https://code.woboq.org/qt5/qtbase/src/plugins/platforms/xcb/qxcbwindow.cpp.h > tml#_ZN10QXcbWindow13setWindowIconERK5QIcon > > This method is called indirectly from QWidget::setWindowIcon. I am > pretty sure that it works as you can easily check by xprop any other Qt > window. So the problem must be the icon. If I search for > labplot-worksheet I find only an icon in size 22x22. Looking at the > linked code, I notice that it's not one of the sizes Qt expects and also > none of the sizes KWin expects, see > https://cgit.kde.org/kwin.git/tree/client.cpp#n1583 Isn't the more relevant code here the one at the start of that method? // First read icons from the window itself const QString themedIconName = iconFromDesktopFile(); if (!themedIconName.isEmpty()) { setIcon(QIcon::fromTheme(themedIconName)); return; } From what I remember, one of the issues with Wayland (and then also with KWin & its custom X-equivalent "_KDE_NET_WM_DESKTOP_FILE") is that while title properties for windows are supported, icons are not (something about graphics resources and different metadata design *insert proper knowledge*). So the window managers and running-app-instance managers take the icon name only from the desktop file, no longer enabling to overwrite the icon for certain windows. Isn't this the issue still? At least I remember this vaguely from some time ago. > Am 2019-03-04 17:39, schrieb Alexander Semke: > > not shown in the window bar, left to the window title. Please check > > the attached screenshots. On windows the proper icon is shown, on > > linux/kwin the applicaion icon is used. > > > > It's X. The output of xprop: > > > > _NET_WM_ICON_NAME(UTF8_STRING) = > > _KDE_NET_WM_DESKTOP_FILE(UTF8_STRING) = "org.kde.labplot2" > > _KDE_NET_WM_COLOR_SCHEME(STRING) = > > "/usr/share/color-schemes/BreezeHighContrast.colors" > > XdndAware(ATOM) = BITMAP > > _KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 2840133529 > > WM_NAME(STRING) = "Import Data to Spreadsheet or Matrix" > > _NET_WM_NAME(UTF8_STRING) = "Import Data to Spreadsheet or Matrix -- > > labplot2" > > _MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x7, 0x26, 0x1e, 0x3, 0x0 > > _NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_DIALOG, > > _NET_WM_WINDOW_TYPE_NORMAL > > _XEMBED_INFO(_XEMBED_INFO) = 0x0, 0x1 > > WM_CLIENT_LEADER(WINDOW): window id # 0x5000008 > > > > WM_HINTS(WM_HINTS): > > Client accepts input or input focus: True > > Initial state is Normal State. > > > > _NET_WM_PID(CARDINAL) = 29202 > > _NET_WM_SYNC_REQUEST_COUNTER(CARDINAL) = 83886351 > > WM_CLASS(STRING) = "labplot2", "labplot2" > > WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW, WM_TAKE_FOCUS, > > _NET_WM_PING, _NET_WM_SYNC_REQUEST, _NET_WM_CONTEXT_HELP > > > > WM_NORMAL_HINTS(WM_SIZE_HINTS): > > user specified location: 819, 262 > > user specified size: 536 by 711 > > program specified minimum size: 522 by 711 > > window gravity: Static > > > > P.S.: sorry for html and for the full-quote, writing from the > > web-frontend... > > > > GESENDET: Montag, 04. März 2019 um 15:08 Uhr > > VON: "David Edmundson" <da...@davidedmundson.co.uk> > > AN: kde-devel <kde-devel@kde.org>, "Kwin, NET API, kwin styles API, > > kwin modules API" <k...@kde.org> > > BETREFF: Re: setWindowIcon for QDialog > > > > On Mon, Mar 4, 2019 at 1:49 PM Aleix Pol <aleix...@kde.org> wrote: > >> On Sun, Mar 3, 2019 at 11:00 AM Alexander Semke > > > > <alexander.se...@web.de> wrote: > >> > With kwin, the specified icons are not shown This quote sadly misses the possibly relevant initial " and I always get the default application's icon shown." Cheers Friedrich