Add folder dropdown icons to VDS (#5632)

* add svg

* update pixmap cache

* get icon to work

* hide icon when not clickable

* use consistent naming

* use expandOnly because apparently that leads to higher image quality

cockatrice/src/client/ui/pixel_map_generator.cpp

@@ -357,6 +357,21 @@ QPixmap LockPixmapGenerator::generatePixmap(int height)
 
 QMap<int, QPixmap> LockPixmapGenerator::pmCache;
 
+QPixmap DropdownIconPixmapGenerator::generatePixmap(int height, bool expanded)
+{
+    QString key = QString::number(expanded) + ":" + QString::number(height);
+    if (pmCache.contains(key))
+        return pmCache.value(key);
+
+    QString name = expanded ? "dropdown_expanded" : "dropdown_collapsed";
+    QPixmap pixmap = tryLoadImage("theme:icons/" + name, QSize(height, height), true);
+
+    pmCache.insert(key, pixmap);
+    return pixmap;
+}
+
+QMap<QString, QPixmap> DropdownIconPixmapGenerator::pmCache;
+
 QPixmap loadColorAdjustedPixmap(const QString &name)
 {
     if (qApp->palette().windowText().color().lightness() > 200) {

cockatrice/src/client/ui/pixel_map_generator.h

@@ -106,6 +106,19 @@ public:
     }
 };
 
+class DropdownIconPixmapGenerator
+{
+private:
+    static QMap<QString, QPixmap> pmCache;
+
+public:
+    static QPixmap generatePixmap(int height, bool expanded);
+    static void clear()
+    {
+        pmCache.clear();
+    }
+};
+
 QPixmap loadColorAdjustedPixmap(const QString &name);
 
 #endif

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

@@ -1,5 +1,7 @@
 #include "banner_widget.h"
 
+#include "../../../../../client/ui/pixel_map_generator.h"
+
 #include <QLinearGradient>
 #include <QMouseEvent>
 #include <QPainter>
@@ -8,14 +10,19 @@
 BannerWidget::BannerWidget(QWidget *parent, const QString &text, Qt::Orientation orientation, int transparency)
     : QWidget(parent), gradientOrientation(orientation), transparency(qBound(0, transparency, 100))
 {
+    auto layout = new QHBoxLayout(this);
+
+    iconLabel = new QLabel(this);
+    iconLabel->setAlignment(Qt::AlignLeft | Qt::AlignVCenter);
+
     // Create the banner label and set properties
     bannerLabel = new QLabel(text, this);
     bannerLabel->setAlignment(Qt::AlignCenter);
     bannerLabel->setStyleSheet("font-size: 24px; font-weight: bold; color: white;");
 
-    // Layout to center the banner label
-    layout = new QVBoxLayout(this);
+    layout->addWidget(iconLabel);
     layout->addWidget(bannerLabel);
+    layout->addWidget(new QLabel(this)); // add dummy label to force text label to be centered
     setLayout(layout);
 
     // Set minimum height for the widget
@@ -36,10 +43,29 @@ void BannerWidget::setText(const QString &text) const
     bannerLabel->setText(text);
 }
 
+void BannerWidget::setClickable(bool _clickable)
+{
+    clickable = _clickable;
+    setDropdownIconState(true);
+}
+
 void BannerWidget::toggleBuddyVisibility() const
 {
     if (buddy) {
         buddy->setVisible(!buddy->isVisible());
+        setDropdownIconState(buddy->isVisible());
+    } else {
+        setDropdownIconState(false);
+    }
+}
+
+void BannerWidget::setDropdownIconState(bool expanded) const
+{
+    if (clickable) {
+        iconLabel->setPixmap(DropdownIconPixmapGenerator::generatePixmap(24, expanded));
+    } else {
+        // we cannot directly hide the iconLabel, since it's needed to center the text; set an empty image instead
+        iconLabel->setPixmap(QPixmap());
     }
 }
 

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

@@ -16,6 +16,7 @@ public:
                           int transparency = 80);
     void mousePressEvent(QMouseEvent *event) override;
     void setText(const QString &text) const;
+    void setClickable(bool _clickable);
     void setBuddy(QWidget *_buddy)
     {
         buddy = _buddy;
@@ -24,16 +25,12 @@ public:
     {
         return bannerLabel->text();
     }
-    void setClickable(bool _clickable)
-    {
-        clickable = _clickable;
-    }
 
 protected:
     void paintEvent(QPaintEvent *event) override;
 
 private:
-    QVBoxLayout *layout;
+    QLabel *iconLabel;
     QLabel *bannerLabel;
     Qt::Orientation gradientOrientation;
     int transparency; // Transparency percentage for the gradient
@@ -43,6 +40,7 @@ signals:
     void buddyVisibilityChanged();
 private slots:
     void toggleBuddyVisibility() const;
+    void setDropdownIconState(bool expanded) const;
 };
 
 #endif // BANNER_WIDGET_H