From af58f5b12cea91467692dd4ae71d8cc916a608ed Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Tue, 5 Jan 2021 22:33:28 +0200
Subject: [PATCH] qt: Stop the effect of hidden widgets on the size of
 QStackedWidget

Layouts of the hidden widgets, those are children of QStackedWidget,
could prevent to adjust the size of the parent widget in the
WalletFrame widget.
---
 src/qt/walletframe.cpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/qt/walletframe.cpp b/src/qt/walletframe.cpp
index 2edb7eff8a..02b3c62867 100644
--- a/src/qt/walletframe.cpp
+++ b/src/qt/walletframe.cpp
@@ -106,9 +106,24 @@ void WalletFrame::setCurrentWallet(WalletModel* wallet_model)
 {
     if (mapWalletViews.count(wallet_model) == 0) return;
 
+    // Stop the effect of hidden widgets on the size hint of the shown one in QStackedWidget.
+    WalletView* view_about_to_hide = currentWalletView();
+    if (view_about_to_hide) {
+        QSizePolicy sp = view_about_to_hide->sizePolicy();
+        sp.setHorizontalPolicy(QSizePolicy::Ignored);
+        view_about_to_hide->setSizePolicy(sp);
+    }
+
     WalletView *walletView = mapWalletViews.value(wallet_model);
-    walletStack->setCurrentWidget(walletView);
     assert(walletView);
+
+    // Set or restore the default QSizePolicy which could be set to QSizePolicy::Ignored previously.
+    QSizePolicy sp = walletView->sizePolicy();
+    sp.setHorizontalPolicy(QSizePolicy::Preferred);
+    walletView->setSizePolicy(sp);
+    walletView->updateGeometry();
+
+    walletStack->setCurrentWidget(walletView);
     walletView->updateEncryptionStatus();
 }