Give the banner widget a buddy and the ability to show/hide the buddy when clicked.

cockatrice/src/client/tabs/api/edhrec/edhrec_commander_api_response_card_list_display_widget.cpp

@@ -13,9 +13,10 @@ EdhrecCommanderApiResponseCardListDisplayWidget::EdhrecCommanderApiResponseCardL
     layout = new QVBoxLayout(this);
     setLayout(layout);
 
-    auto header = new BannerWidget(toDisplay.header, Qt::Vertical, 80, this);
+    auto header = new BannerWidget(this, toDisplay.header);
 
     flowWidget = new FlowWidget(this, Qt::Horizontal, Qt::ScrollBarAlwaysOff, Qt::ScrollBarAlwaysOff);
+    header->setBuddy(flowWidget);
 
     foreach (EdhrecCommanderApiResponseCardDetails card_detail, toDisplay.cardViews) {
         auto widget = new EdhrecCommanderApiResponseCardDetailsDisplayWidget(flowWidget, card_detail);

cockatrice/src/client/ui/widgets/general/display/banner_widget.cpp

@@ -1,9 +1,11 @@
 #include "banner_widget.h"
-#include <QVBoxLayout>
-#include <QPainter>
-#include <QLinearGradient>
 
-BannerWidget::BannerWidget(const QString& text, Qt::Orientation orientation, int transparency, QWidget* parent)
+#include <QLinearGradient>
+#include <QMouseEvent>
+#include <QPainter>
+#include <QVBoxLayout>
+
+BannerWidget::BannerWidget(QWidget *parent, const QString &text, Qt::Orientation orientation, int transparency)
     : QWidget(parent), gradientOrientation(orientation), transparency(qBound(0, transparency, 100))
 {
     // Create the banner label and set properties
@@ -19,6 +21,20 @@ BannerWidget::BannerWidget(const QString& text, Qt::Orientation orientation, int
 
     // Set minimum height for the widget
     setMinimumHeight(100);
+    connect(this, &BannerWidget::buddyVisibilityChanged, this, &BannerWidget::toggleBuddyVisibility);
+}
+
+void BannerWidget::mousePressEvent(QMouseEvent *event)
+{
+    QWidget::mousePressEvent(event);
+    emit buddyVisibilityChanged();
+}
+
+void BannerWidget::toggleBuddyVisibility() const
+{
+    if (buddy) {
+        buddy->setVisible(!buddy->isVisible());
+    }
 }
 
 void BannerWidget::paintEvent(QPaintEvent* event)

cockatrice/src/client/ui/widgets/general/display/banner_widget.h

@@ -1,15 +1,23 @@
 #ifndef BANNER_WIDGET_H
 #define BANNER_WIDGET_H
 
-#include <QWidget>
 #include <QLabel>
+#include <QWidget>
 
 class BannerWidget : public QWidget
 {
     Q_OBJECT
 
 public:
-    explicit BannerWidget(const QString& text, Qt::Orientation orientation = Qt::Vertical, int transparency = 80, QWidget* parent = nullptr);
+    explicit BannerWidget(QWidget *parent,
+                          const QString &text,
+                          Qt::Orientation orientation = Qt::Vertical,
+                          int transparency = 80);
+    void mousePressEvent(QMouseEvent *event);
+    void setBuddy(QWidget *_buddy)
+    {
+        buddy = _buddy;
+    }
 
 protected:
     void paintEvent(QPaintEvent *event) override;
@@ -18,6 +26,11 @@ private:
     QLabel *bannerLabel;
     Qt::Orientation gradientOrientation;
     int transparency; // Transparency percentage for the gradient
+    QWidget *buddy;
+signals:
+    void buddyVisibilityChanged();
+private slots:
+    void toggleBuddyVisibility() const;
 };
 
 #endif // BANNER_WIDGET_H