wip: optimize

src/image_item.cpp

@@ -0,0 +1,83 @@
+/*
+ * @Author: Uyanide pywang0608@foxmail.com
+ * @Date: 2025-11-30 20:32:27
+ * @LastEditTime: 2025-11-30 23:07:52
+ * @Description: Image item widget for displaying an image.
+ */
+#include "image_item.h"
+
+#include "logger.h"
+
+using namespace GeneralLogger;
+
+ImageData* ImageData::create(const QString& p, const int initWidth, const int initHeight) {
+    ImageData* data = new ImageData(p);
+
+    if (!data->image.load(p)) {
+        error(QString("Failed to load image from path: %1").arg(p));
+        delete data;
+        return nullptr;
+    }
+    const QSize targetSize(initWidth, initHeight);
+    data->image = data->image.scaled(targetSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
+
+    // Crop to center
+    int x       = (data->image.width() - targetSize.width()) / 2;
+    int y       = (data->image.height() - targetSize.height()) / 2;
+    data->image = data->image.copy(x, y, targetSize.width(), targetSize.height());
+    return data;
+}
+
+ImageItem::ImageItem(const ImageData* data,
+                     const int itemWidth,
+                     const int itemHeight,
+                     const int itemFocusWidth,
+                     const int itemFocusHeight,
+                     QWidget* parent)
+    : QLabel(parent),
+      m_data(data),
+      m_itemSize(itemWidth, itemHeight),
+      m_itemFocusSize(itemFocusWidth, itemFocusHeight) {
+    assert(data != nullptr);
+    setScaledContents(true);
+    if (data->image.isNull()) {
+        setText(":(");
+        setAlignment(Qt::AlignCenter);
+    } else {
+        setPixmap(QPixmap::fromImage(data->image));
+    }
+    setFixedSize(itemWidth, itemHeight);
+}
+
+ImageItem::~ImageItem() {
+    if (m_scaleAnimation) {
+        m_scaleAnimation->stop();
+        delete m_scaleAnimation;
+        m_scaleAnimation = nullptr;
+    }
+    delete m_data;
+}
+
+void ImageItem::setFocus(bool focus, bool animate) {
+    if (!animate) {
+        setFixedSize(focus ? m_itemFocusSize : m_itemSize);
+        return;
+    }
+    if (m_scaleAnimation) {
+        m_scaleAnimation->stop();
+        delete m_scaleAnimation;
+        m_scaleAnimation = nullptr;
+    }
+    m_scaleAnimation = new QPropertyAnimation(this, "size");
+    m_scaleAnimation->setDuration(ImageItem::s_animationDuration);
+    m_scaleAnimation->setStartValue(size());
+    m_scaleAnimation->setEndValue(focus ? m_itemFocusSize : m_itemSize);
+    m_scaleAnimation->setEasingCurve(QEasingCurve::OutCubic);
+    connect(m_scaleAnimation,
+            &QPropertyAnimation::valueChanged,
+            this,
+            [this](const QVariant& value) {
+                setFixedSize(value.toSize());
+            });
+    m_scaleAnimation->start();
+}