perf: smooth UI animations and reduce repaint overhead

Batch of performance and animation work: shared FadeHelper/MotionPrefs primitives, hover animators, shadow pixmap caching, smooth scrolling, seek time bubble, and widespread component repaint reductions.
2026-07-08 11:29:38 +08:00
parent 03bc33518c
commit ab1accc821
85 changed files with 2308 additions and 661 deletions
@@ -0,0 +1,80 @@
+#include "seektimebubble.h"
+
+#include <QLabel>
+#include <QPainter>
+#include <QVBoxLayout>
+
+#include "../utils/fadehelper.h"
+
+SeekTimeBubble::SeekTimeBubble(QWidget *parent)
+    : QWidget(parent)
+{
+    setAttribute(Qt::WA_TransparentForMouseEvents);
+    setVisible(false);
+
+    auto *layout = new QVBoxLayout(this);
+    layout->setContentsMargins(10, 4, 10, 4);
+    layout->setSpacing(4);
+
+    m_thumbSlot = new QLabel(this);
+    m_thumbSlot->setObjectName("seekBubbleThumb");
+    m_thumbSlot->setVisible(false);
+    layout->addWidget(m_thumbSlot, 0, Qt::AlignHCenter);
+
+    m_timeLabel = new QLabel(this);
+    m_timeLabel->setObjectName("seekBubbleTime");
+    m_timeLabel->setAlignment(Qt::AlignCenter);
+    layout->addWidget(m_timeLabel, 0, Qt::AlignHCenter);
+}
+
+void SeekTimeBubble::setTimeText(const QString &text)
+{
+    if (m_timeLabel->text() == text)
+    {
+        return;
+    }
+    m_timeLabel->setText(text);
+    adjustSize();
+}
+
+void SeekTimeBubble::showAt(const QPoint &anchor)
+{
+    adjustSize();
+
+    QPoint topLeft(anchor.x() - width() / 2, anchor.y() - height());
+    if (parentWidget())
+    {
+        const int maxX = parentWidget()->width() - width();
+        topLeft.setX(qBound(0, topLeft.x(), qMax(0, maxX)));
+        topLeft.setY(qMax(0, topLeft.y()));
+    }
+    move(topLeft);
+
+    if (!m_shown)
+    {
+        m_shown = true;
+        raise();
+        FadeHelper::fadeIn(this, AnimationTokens::DurationMs::kQuick);
+    }
+}
+
+void SeekTimeBubble::hideBubble()
+{
+    if (!m_shown)
+    {
+        return;
+    }
+    m_shown = false;
+    FadeHelper::fadeOut(this, AnimationTokens::DurationMs::kMicro,
+                        AnimationTokens::Curve::exit(), [this]() { hide(); });
+}
+
+void SeekTimeBubble::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event);
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.setPen(QPen(QColor(148, 163, 184, 60), 1));
+    painter.setBrush(QColor(15, 23, 42, 235));
+    painter.drawRoundedRect(QRectF(rect()).adjusted(0.5, 0.5, -0.5, -0.5), 6, 6);
+}