From bd74629420b1321d1a8354c69b6cda62f9c9e5ff Mon Sep 17 00:00:00 2001
From: WarmUpTill <WarmUpTill@web.de>
Date: Fri, 2 Jun 2023 22:03:52 +0200
Subject: [PATCH] Add helpers to add and remove trailing spacer items in
 QBoxLayouts

---
 src/utils/utility.cpp | 28 ++++++++++++++++++++++++++++
 src/utils/utility.hpp |  2 ++
 2 files changed, 30 insertions(+)

diff --git a/src/utils/utility.cpp b/src/utils/utility.cpp
index e7ef9851..e021fa70 100644
--- a/src/utils/utility.cpp
+++ b/src/utils/utility.cpp
@@ -23,6 +23,7 @@
 #include <QCursor>
 #include <QMainWindow>
 #include <QScreen>
+#include <QSpacerItem>
 #include <unordered_map>
 #include <regex>
 #include <set>
@@ -255,6 +256,33 @@ void SetLayoutVisible(QLayout *layout, bool visible)
 	}
 }
 
+void AddStretchIfNecessary(QBoxLayout *layout)
+{
+	int itemCount = layout->count();
+	if (itemCount > 0) {
+		auto lastItem = layout->itemAt(itemCount - 1);
+		auto lastSpacer = dynamic_cast<QSpacerItem *>(lastItem);
+		if (!lastSpacer) {
+			layout->addStretch();
+		}
+	} else {
+		layout->addStretch();
+	}
+}
+
+void RemoveStretchIfPresent(QBoxLayout *layout)
+{
+	int itemCount = layout->count();
+	if (itemCount > 0) {
+		auto lastItem = layout->itemAt(itemCount - 1);
+		auto lastSpacer = dynamic_cast<QSpacerItem *>(lastItem);
+		if (lastSpacer) {
+			layout->removeItem(lastItem);
+			delete lastItem;
+		}
+	}
+}
+
 void MinimizeSizeOfColumn(QGridLayout *layout, int idx)
 {
 	if (idx >= layout->columnCount()) {
diff --git a/src/utils/utility.hpp b/src/utils/utility.hpp
index eecda3bd..89804a49 100644
--- a/src/utils/utility.hpp
+++ b/src/utils/utility.hpp
@@ -88,6 +88,8 @@ void PlaceWidgets(std::string text, QBoxLayout *layout,
 void DeleteLayoutItemWidget(QLayoutItem *item);
 void ClearLayout(QLayout *layout, int afterIdx = 0);
 void SetLayoutVisible(QLayout *layout, bool visible);
+void AddStretchIfNecessary(QBoxLayout *layout);
+void RemoveStretchIfPresent(QBoxLayout *layout);
 void MinimizeSizeOfColumn(QGridLayout *layout, int idx);
 QMetaObject::Connection PulseWidget(QWidget *widget, QColor startColor,
 				    QColor endColor = QColor(0, 0, 0, 0),