[Fonts] Migrate CardText surfaces to theme font role (#7538)

* [Fonts] Migrate CardText surfaces to theme font role

* [Fonts] Keep CardText call sites on the app font and fix px sizes

- CardText's unset fallback is qApp->font() again: only the three counter
  painters (paintNumberEllipse, GeneralCounter, PlayerCounter) were Serif
  before the role existed, and they now ask for it through
  ThemeManager::cardTextFont(). Card names, player names, counters, the
  overlay, the Archidekt and EDHREC labels and the completer delegate keep the
  app font they used before.
- Use setPixelSize for the EDHREC card name (20px) and commander name (28px)
  and details (16px) sizes: the stylesheets said px, and setPointSize made
  them about a third larger.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/cards/art_crop_attribution.cpp

@@ -1,5 +1,6 @@
 #include "art_crop_attribution.h"
 
+#include "../../theme_manager.h"
 #include "libcockatrice/card/printing/printing_info.h"
 
 #include <QColor>
@@ -35,7 +36,10 @@ QRectF paintArtAttribution(QPainter &painter,
 
     painter.save();
 
+    // Family comes from the CardText theme role; the incoming painter size
+    // stays the basis for the scale factor exactly as before.
     QFont font = painter.font();
+    font.setFamily(themeManager->appFont(AppFont::CardText).family());
     font.setPointSizeF(qMax(6.0, font.pointSizeF() * scale));
     painter.setFont(font);
 

cockatrice/src/interface/widgets/cards/card_info_picture_with_text_overlay_widget.cpp

@@ -1,5 +1,7 @@
 #include "card_info_picture_with_text_overlay_widget.h"
 
+#include "../../theme_manager.h"
+
 #include <QBrush>
 #include <QChar>
 #include <QFont>
@@ -43,6 +45,7 @@ CardInfoPictureWithTextOverlayWidget::CardInfoPictureWithTextOverlayWidget(QWidg
       fontSize(fontSize), textAlignment(alignment), highlighted(false)
 {
     this->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    connect(themeManager, &ThemeManager::fontsChanged, this, &CardInfoPictureWithTextOverlayWidget::applyCardTextFont);
 }
 
 /**
@@ -97,6 +100,13 @@ void CardInfoPictureWithTextOverlayWidget::setTextAlignment(const Qt::Alignment
     update();
 }
 
+void CardInfoPictureWithTextOverlayWidget::applyCardTextFont()
+{
+    // The overlay paint reads the CardText role font at paint time, so a
+    // theme font change only needs a repaint here.
+    update();
+}
+
 void CardInfoPictureWithTextOverlayWidget::setHighlighted(bool _highlighted)
 {
     if (highlighted == _highlighted) {
@@ -168,8 +178,10 @@ void CardInfoPictureWithTextOverlayWidget::paintEvent(QPaintEvent *event)
         return;
     }
 
-    // Calculate the optimal font size
-    QFont font = painter.font();
+    // Calculate the optimal font size. The family comes from the CardText
+    // theme role; the fontSize member stays the starting size and the
+    // shrink-to-fit logic below is unchanged.
+    QFont font = themeManager->appFont(AppFont::CardText);
     int optimalFontSize = fontSize; // Start with the user-defined font size
     const QFontMetrics baseMetrics(font);
     int textWidth = pixmapRect.width();
@@ -284,7 +296,7 @@ QSize CardInfoPictureWithTextOverlayWidget::minimumSizeHint() const
     const QSize pixmapSize = pixmap.isNull() ? QSize(0, 0) : pixmap.size();
 
     // Get the font metrics for the overlay text
-    QFont font;
+    QFont font = themeManager->appFont(AppFont::CardText);
     font.setPointSize(fontSize);
     const QFontMetrics fontMetrics(font);
 

cockatrice/src/interface/widgets/cards/card_info_picture_with_text_overlay_widget.h

@@ -47,6 +47,9 @@ protected:
     void mousePressEvent(QMouseEvent *event) override;
     [[nodiscard]] QSize minimumSizeHint() const override;
 
+private slots:
+    void applyCardTextFont();
+
 private:
     void drawOutlinedText(QPainter &painter,
                           const QRect &textRect,