Rotate random art crop.

Took 3 hours 34 minutes

Took 9 seconds

cockatrice/CMakeLists.txt

@@ -85,6 +85,7 @@ set(cockatrice_SOURCES
     src/client/ui/widgets/cards/card_group_display_widgets/overlapped_card_group_display_widget.cpp
     src/client/ui/widgets/cards/card_info_display_widget.cpp
     src/client/ui/widgets/cards/card_info_frame_widget.cpp
+    src/client/ui/widgets/cards/card_info_picture_art_crop_widget.cpp
     src/client/ui/widgets/cards/card_info_picture_enlarged_widget.cpp
     src/client/ui/widgets/cards/card_info_picture_widget.cpp
     src/client/ui/widgets/cards/card_info_picture_with_text_overlay_widget.cpp

cockatrice/src/client/ui/widgets/cards/card_info_picture_art_crop_widget.cpp

@@ -0,0 +1,41 @@
+#include "card_info_picture_art_crop_widget.h"
+
+#include "../../picture_loader/picture_loader.h"
+
+CardInfoPictureArtCropWidget::CardInfoPictureArtCropWidget(QWidget *parent)
+    : CardInfoPictureWidget(parent, false, false)
+{
+    hide();
+}
+
+QPixmap CardInfoPictureArtCropWidget::getProcessedBackground(const QSize &targetSize)
+{
+    // Load the full-resolution card image, not a pre-scaled one
+    QPixmap fullResPixmap;
+    if (getInfo()) {
+        PictureLoader::getPixmap(fullResPixmap, getInfo(), QSize(745, 1040)); // or a high default size
+    } else {
+        PictureLoader::getCardBackPixmap(fullResPixmap, QSize(745, 1040));
+    }
+
+    // Fail-safe if loading failed
+    if (fullResPixmap.isNull()) {
+        return QPixmap(targetSize);
+    }
+
+    const QSize sz = fullResPixmap.size();
+
+    int marginX = sz.width() * 0.07;
+    int topMargin = sz.height() * 0.11;
+    int bottomMargin = sz.height() * 0.45;
+
+    QRect foilRect(marginX, topMargin, sz.width() - 2 * marginX, sz.height() - topMargin - bottomMargin);
+
+    foilRect = foilRect.intersected(fullResPixmap.rect()); // always clamp to source bounds
+
+    // Crop first, then scale for best quality
+    QPixmap cropped = fullResPixmap.copy(foilRect);
+    QPixmap scaled = cropped.scaled(targetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
+
+    return scaled;
+}

cockatrice/src/client/ui/widgets/cards/card_info_picture_art_crop_widget.h

@@ -0,0 +1,17 @@
+#ifndef CARD_INFO_PICTURE_ART_CROP_WIDGET_H
+#define CARD_INFO_PICTURE_ART_CROP_WIDGET_H
+
+#include "card_info_picture_widget.h"
+
+class CardInfoPictureArtCropWidget : public CardInfoPictureWidget
+{
+    Q_OBJECT
+
+public:
+    explicit CardInfoPictureArtCropWidget(QWidget *parent = nullptr);
+
+    // Returns a processed (cropped & scaled) version of the pixmap
+    QPixmap getProcessedBackground(const QSize &targetSize);
+};
+
+#endif // CARD_INFO_PICTURE_ART_CROP_WIDGET_H

cockatrice/src/client/ui/widgets/general/home_styled_button.cpp

@@ -12,6 +12,12 @@ HomeStyledButton::HomeStyledButton(const QString &text, QPair<QColor, QColor> _g
     setStyleSheet(generateButtonStylesheet(gradientColors));
 }
 
+void HomeStyledButton::updateStylesheet(const QPair<QColor, QColor> &colors)
+{
+    gradientColors = colors;
+    setStyleSheet(generateButtonStylesheet(gradientColors));
+}
+
 QString HomeStyledButton::generateButtonStylesheet(const QPair<QColor, QColor> &colors)
 {
     QColor base1 = colors.first;

cockatrice/src/client/ui/widgets/general/home_styled_button.h

@@ -11,6 +11,7 @@ class HomeStyledButton : public QPushButton
     Q_OBJECT
 public:
     HomeStyledButton(const QString &text, QPair<QColor, QColor> gradientColors, QWidget *parent = nullptr);
+    void updateStylesheet(const QPair<QColor, QColor> &colors);
     QString generateButtonStylesheet(const QPair<QColor, QColor> &colors);
 public slots:
     void paintEvent(QPaintEvent *event) override;

cockatrice/src/client/ui/widgets/general/home_widget.cpp

@@ -1,5 +1,6 @@
 #include "home_widget.h"
 
+#include "../../../../game/cards/card_database_manager.h"
 #include "../../../tabs/tab_supervisor.h"
 #include "home_styled_button.h"
 
@@ -11,8 +12,15 @@
 HomeWidget::HomeWidget(QWidget *parent, TabSupervisor *_tabSupervisor)
     : QWidget(parent), tabSupervisor(_tabSupervisor), background("theme:backgrounds/home"), overlay("theme:cockatrice")
 {
+    setAttribute(Qt::WA_OpaquePaintEvent);
     layout = new QGridLayout(this);
 
+    backgroundSource = new CardInfoPictureArtCropWidget(this);
+
+    backgroundSource->setCard(CardDatabaseManager::getInstance()->getRandomCard());
+
+    background = backgroundSource->getProcessedBackground(size());
+
     gradientColors = extractDominantColors(background);
 
     layout->addWidget(createSettingsButtonGroup("Settings"), 0, 0, Qt::AlignTop | Qt::AlignLeft);
@@ -26,6 +34,42 @@ HomeWidget::HomeWidget(QWidget *parent, TabSupervisor *_tabSupervisor)
     layout->setColumnStretch(2, 1);
 
     setLayout(layout);
+
+    connect(CardDatabaseManager::getInstance(), &CardDatabase::cardDatabaseLoadingFinished, this,
+            &HomeWidget::startCardShuffleTimer);
+
+    if (CardDatabaseManager::getInstance()->getLoadStatus() == LoadStatus::Ok) {
+        startCardShuffleTimer();
+    }
+}
+
+void HomeWidget::startCardShuffleTimer()
+{
+    cardChangeTimer = new QTimer(this);
+    connect(cardChangeTimer, &QTimer::timeout, this, &HomeWidget::updateRandomCard);
+    cardChangeTimer->start(5000); // 20 seconds
+}
+
+void HomeWidget::updateRandomCard()
+{
+    CardInfoPtr newCard = CardDatabaseManager::getInstance()->getRandomCard();
+    if (!newCard)
+        return;
+
+    connect(newCard.data(), &CardInfo::pixmapUpdated, this, &HomeWidget::updateBackgroundProperties);
+    backgroundSource->setCard(newCard);
+}
+
+void HomeWidget::updateBackgroundProperties()
+{
+    background = backgroundSource->getProcessedBackground(size());
+
+    gradientColors = extractDominantColors(background);
+    for (HomeStyledButton *button : findChildren<HomeStyledButton *>()) {
+        button->updateStylesheet(gradientColors);
+        button->update();
+    }
+    update(); // Triggers repaint
 }
 
 QGroupBox *HomeWidget::createSettingsButtonGroup(const QString &title)
@@ -197,13 +241,17 @@ void HomeWidget::paintEvent(QPaintEvent *event)
 {
     QPainter painter(this);
 
-    // Draw zoomed background
+    // Update background if we have a source
+    if (backgroundSource) {
+        background = backgroundSource->getProcessedBackground(size());
+    }
+
+    // Draw already-scaled background centered
     QSize widgetSize = size();
     QSize bgSize = background.size();
-    QSize scaledSize = bgSize.scaled(widgetSize, Qt::KeepAspectRatioByExpanding);
-    QPoint topLeft((widgetSize.width() - scaledSize.width()) / 2, (widgetSize.height() - scaledSize.height()) / 2);
-    painter.drawPixmap(topLeft,
-                       background.scaled(scaledSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
+    QPoint topLeft((widgetSize.width() - bgSize.width()) / 2, (widgetSize.height() - bgSize.height()) / 2);
+
+    painter.drawPixmap(topLeft, background);
 
     // Draw translucent black overlay with rounded corners
     QRectF overlayRect(5, 5, width() - 10, height() - 10); // 5px inset
@@ -220,4 +268,4 @@ void HomeWidget::paintEvent(QPaintEvent *event)
     painter.drawPixmap(center, overlay);
 
     QWidget::paintEvent(event);
-}
+}

cockatrice/src/client/ui/widgets/general/home_widget.h

@@ -1,6 +1,7 @@
 #ifndef HOME_WIDGET_H
 #define HOME_WIDGET_H
 #include "../../../tabs/tab_supervisor.h"
+#include "../cards/card_info_picture_art_crop_widget.h"
 
 #include <QGridLayout>
 #include <QGroupBox>
@@ -13,6 +14,8 @@ class HomeWidget : public QWidget
 
 public:
     HomeWidget(QWidget *parent, TabSupervisor *tabSupervisor);
+    void startCardShuffleTimer();
+    void updateRandomCard();
     QGroupBox *createSettingsButtonGroup(const QString &title);
     QGroupBox *createUpdatesButtonGroup(const QString &title);
     QGroupBox *createNavigationButtonGroup(const QString &title);
@@ -21,11 +24,14 @@ public:
 
 public slots:
     void paintEvent(QPaintEvent *event) override;
+    void updateBackgroundProperties();
 
 private:
     QGridLayout *layout;
+    QTimer *cardChangeTimer;
     TabSupervisor *tabSupervisor;
     QPixmap background;
+    CardInfoPictureArtCropWidget *backgroundSource = nullptr;
     QPixmap overlay;
     QPair<QColor, QColor> gradientColors;
 };

cockatrice/src/game/cards/card_database.cpp

@@ -14,6 +14,7 @@
 #include <QMessageBox>
 #include <QRegularExpression>
 #include <algorithm>
+#include <qrandom.h>
 #include <utility>
 
 CardDatabase::CardDatabase(QObject *parent) : QObject(parent), loadStatus(NotLoaded)
@@ -213,6 +214,17 @@ ExactCard CardDatabase::guessCard(const CardRef &cardRef) const
     return ExactCard(temp, findPrintingWithId(temp, cardRef.providerId));
 }
 
+CardInfoPtr CardDatabase::getRandomCard()
+{
+    if (cards.isEmpty()) return nullptr;
+
+    const auto keys = cards.keys();
+    int randomIndex = QRandomGenerator::global()->bounded(keys.size());
+    const QString &randomKey = keys.at(randomIndex);
+
+    return getCardFromMap(cards, randomKey);
+}
+
 CardSetPtr CardDatabase::getSet(const QString &setName)
 {
     if (sets.contains(setName)) {

cockatrice/src/game/cards/card_database.h

@@ -53,6 +53,7 @@ protected:
     QVector<ICardDatabaseParser *> availableParsers;
 
 private:
+    CardInfoPtr getCardFromMap(const CardNameMap &cardMap, const QString &cardName) const;
     void checkUnknownSets();
     void refreshCachedReverseRelatedCards();
 
@@ -85,6 +86,7 @@ public:
     ExactCard getCardFromSameSet(const QString &cardName, const PrintingInfo &otherPrinting) const;
 
     [[nodiscard]] ExactCard guessCard(const CardRef &cardRef) const;
+    [[nodiscard]] ExactCard getRandomCard();
 
     /*
      * Get a card by its simple name. The name will be simplified in this