1 files changed, 120 insertions, 0 deletions
diff --git a/libs/installer_fomod_plus/installer/ui/ScaleLabel.cpp b/libs/installer_fomod_plus/installer/ui/ScaleLabel.cpp
new file mode 100644
index 0000000..3a33640
--- /dev/null
+++ b/libs/installer_fomod_plus/installer/ui/ScaleLabel.cpp
@@ -0,0 +1,120 @@
+#include "ScaleLabel.h"
+#include <QResizeEvent>
+#include <iostream>
+
+// Taken from https://github.com/ModOrganizer2/modorganizer-installer_fomod/blob/master/src/scalelabel.h
+static bool isResourceMovie(const QString& path)
+{
+    const auto formats = QMovie::supportedFormats();
+    return std::ranges::any_of(formats, [&path](const QByteArray& format) {
+        return path.endsWith("." + QString::fromUtf8(format));
+    });
+}
+
+void ScaleLabel::setScalableResource(const QString& path)
+{
+    if (const auto m = movie()) {
+        setMovie(nullptr);
+        delete m;
+        mOriginalMovieSize = QSize();
+    }
+    if (!pixmap().isNull()) {
+        setPixmap(QPixmap());
+        mUnscaledImage = QImage();
+    }
+
+    if (path.isEmpty()) {
+        return;
+    }
+
+    if (isResourceMovie(path)) {
+        setScalableMovie(path);
+    } else {
+        setScalableImage(path);
+    }
+}
+
+void ScaleLabel::setStatic(const bool isStatic)
+{
+    misStatic = isStatic;
+
+    if (const auto m = movie()) {
+        if (isStatic) {
+            m->stop();
+        } else {
+            m->start();
+        }
+    }
+}
+
+void ScaleLabel::setScalableMovie(const QString& path)
+{
+    const auto m = new QMovie(path);
+    if (!m->isValid()) {
+        qWarning(">%s< is an invalid movie. Reason: %s", qUtf8Printable(path),
+            m->lastErrorString().toStdString().c_str());
+        delete m;
+        return;
+    }
+
+    m->setParent(this);
+    setMovie(m);
+    m->start();
+    m->stop();
+    mOriginalMovieSize = m->currentImage().size();
+
+    m->setScaledSize(mOriginalMovieSize.scaled(size(), Qt::KeepAspectRatio));
+    if (!misStatic) {
+        m->start();
+    }
+    mHasResource = true;
+}
+
+void ScaleLabel::setScalableImage(const QString& path)
+{
+    if (const QImage image(path); image.isNull()) {
+        qWarning(">%s< is a null image", qUtf8Printable(path));
+    } else {
+        mUnscaledImage = image;
+        setPixmap(QPixmap::fromImage(image).scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
+        mHasResource = true;
+    }
+}
+
+void ScaleLabel::resizeEvent(QResizeEvent* event)
+{
+    if (const auto m = movie()) {
+        m->stop();
+        m->setScaledSize(mOriginalMovieSize.scaled(event->size(), Qt::KeepAspectRatio));
+        m->start();
+
+        // We can't just skip the start() above since that is what triggers the label to
+        // resize the movie The only way to resize the movie but keep it paused is to start
+        // and then re-stop it
+        if (misStatic) {
+            m->stop();
+        }
+    }
+    if (const auto p = pixmap(); !p.isNull()) {
+        setPixmap(
+            QPixmap::fromImage(mUnscaledImage).scaled(event->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
+    }
+}
+
+void ScaleLabel::showEvent(QShowEvent* event)
+{
+    QLabel::showEvent(event);
+
+    if (const auto m = movie()) {
+        m->stop();
+        m->setScaledSize(mOriginalMovieSize.scaled(size(), Qt::KeepAspectRatio));
+        m->start();
+
+        if (misStatic) {
+            m->stop();
+        }
+    }
+    if (const auto p = pixmap(); !p.isNull()) {
+        setPixmap(QPixmap::fromImage(mUnscaledImage).scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
+    }
+}
+\ No newline at end of file