client: Fix Core Info session widget spacing

Fix spacing for Core Info session widget by keeping only one stretch
layout item and inserting before it, rather than manually adding
stretches after every client list update.

See https://doc.qt.io/qt-5/qboxlayout.html#insertWidget

diff --git a/src/qtui/coreinfodlg.cpp b/src/qtui/coreinfodlg.cpp
index e5eb7f4..2f8736c 100644 (file)
--- a/src/qtui/coreinfodlg.cpp
+++ b/src/qtui/coreinfodlg.cpp
@@ -59,7 +59,10 @@ void CoreInfoDlg::coreInfoChanged(const QVariantMap &coreInfo) {
         coreSessionWidget->setData(peerMap);
         if (isNew) {
             _widgets[peerId] = coreSessionWidget;
-            ui.coreSessionContainer->addWidget(coreSessionWidget);
+            // Add this to the end of the session list, but before the default layout stretch item.
+            // The layout stretch item should never be removed, so count should always be >= 1.
+            ui.coreSessionContainer->insertWidget(ui.coreSessionContainer->count() - 1,
+                                                  coreSessionWidget, 0, Qt::AlignTop);
             connect(coreSessionWidget, SIGNAL(disconnectClicked(int)), this, SLOT(disconnectClicked(int)));
         }
     }
@@ -70,7 +73,6 @@ void CoreInfoDlg::coreInfoChanged(const QVariantMap &coreInfo) {
     }
 
     ui.coreSessionScrollArea->setVisible(coreSessionSupported);
-    ui.coreSessionContainer->addStretch(1);
 }