diff options
Diffstat (limited to 'sysdata_unix.go')
| -rw-r--r-- | sysdata_unix.go | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdata_unix.go b/sysdata_unix.go index c416552..086080c 100644 --- a/sysdata_unix.go +++ b/sysdata_unix.go @@ -157,6 +157,11 @@ func (s *sysData) make(window *sysData) error { return nil } +// see sysData.center() +func (s *sysData) resetposition() { + C.gtk_window_set_position(togtkwindow(s.widget), C.GTK_WIN_POS_NONE) +} + // used for Windows; nothing special needed elsewhere func (s *sysData) firstShow() error { s.show() @@ -168,6 +173,7 @@ func (s *sysData) show() { defer close(ret) uitask <- func() { gtk_widget_show(s.widget) + s.resetposition() ret <- struct{}{} } <-ret @@ -178,6 +184,7 @@ func (s *sysData) hide() { defer close(ret) uitask <- func() { gtk_widget_hide(s.widget) + s.resetposition() ret <- struct{}{} } <-ret @@ -379,3 +386,26 @@ func (s *sysData) repaintAll() { } <-ret } + +func (s *sysData) center() { + ret := make(chan struct{}) + defer close(ret) + uitask <- func() { + if C.gtk_widget_get_visible(s.widget) == C.FALSE { + // hint to the WM to make it centered when it is shown again + // thanks to Jasper in irc.gimp.net/#gtk+ + C.gtk_window_set_position(togtkwindow(s.widget), C.GTK_WIN_POS_CENTER) + } else { + var width, height C.gint + + s.resetposition() + //we should be able to use gravity to simplify this, but it doesn't take effect immediately, and adding show calls does nothing (thanks Jasper in irc.gimp.net/#gtk+) + C.gtk_window_get_size(togtkwindow(s.widget), &width, &height) + C.gtk_window_move(togtkwindow(s.widget), + (C.gdk_screen_width() / 2) - (width / 2), + (C.gdk_screen_height() / 2) - (width / 2)) + } + ret <- struct{}{} + } + <-ret +} |