X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/6072005ddce81b456fdcf2e77d5156a1d86f3686..d0c71a1435bc9d:/src/kitemviews/kitemlistview.cpp

diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp
index 05204a910..f14369cbd 100644
--- a/src/kitemviews/kitemlistview.cpp
+++ b/src/kitemviews/kitemlistview.cpp
@@ -24,6 +24,7 @@
 #include <QElapsedTimer>
 #include <QGraphicsSceneMouseEvent>
 #include <QGraphicsView>
+#include <QPropertyAnimation>
 #include <QStyleOptionRubberBand>
 #include <QTimer>
 
@@ -80,11 +81,13 @@ KItemListView::KItemListView(QGraphicsWidget* parent) :
     m_oldMaximumItemOffset(0),
     m_skipAutoScrollForRubberBand(false),
     m_rubberBand(nullptr),
+    m_tapAndHoldIndicator(nullptr),
     m_mousePos(),
     m_autoScrollIncrement(0),
     m_autoScrollTimer(nullptr),
     m_header(nullptr),
     m_headerWidget(nullptr),
+    m_indicatorAnimation(nullptr),
     m_dropIndicator()
 {
     setAcceptHoverEvents(true);
@@ -105,6 +108,23 @@ KItemListView::KItemListView(QGraphicsWidget* parent) :
     m_rubberBand = new KItemListRubberBand(this);
     connect(m_rubberBand, &KItemListRubberBand::activationChanged, this, &KItemListView::slotRubberBandActivationChanged);
 
+    m_tapAndHoldIndicator = new KItemListRubberBand(this);
+    m_indicatorAnimation = new QPropertyAnimation(m_tapAndHoldIndicator, "endPosition", this);
+    connect(m_tapAndHoldIndicator, &KItemListRubberBand::activationChanged, this, [this](bool active) {
+        if (active) {
+            m_indicatorAnimation->setDuration(150);
+            m_indicatorAnimation->setStartValue(QPointF(1, 1));
+            m_indicatorAnimation->setEndValue(QPointF(40, 40));
+            m_indicatorAnimation->start();
+        }
+        update();
+    });
+    connect(m_tapAndHoldIndicator, &KItemListRubberBand::endPositionChanged, this, [this]() {
+        if (m_tapAndHoldIndicator->isActive()) {
+            update();
+        }
+    });
+
     m_headerWidget = new KItemListHeaderWidget(this);
     m_headerWidget->setVisible(false);
 
@@ -658,6 +678,18 @@ void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* opt
         style()->drawControl(QStyle::CE_RubberBand, &opt, painter);
     }
 
+    if (m_tapAndHoldIndicator->isActive()) {
+        const QPointF indicatorSize = m_tapAndHoldIndicator->endPosition();
+        const QRectF rubberBandRect = QRectF(m_tapAndHoldIndicator->startPosition() - indicatorSize,
+                                    (m_tapAndHoldIndicator->startPosition()) + indicatorSize).normalized();
+        QStyleOptionRubberBand opt;
+        initStyleOption(&opt);
+        opt.shape = QRubberBand::Rectangle;
+        opt.opaque = false;
+        opt.rect = rubberBandRect.toRect();
+        style()->drawControl(QStyle::CE_RubberBand, &opt, painter);
+    }
+
     if (!m_dropIndicator.isEmpty()) {
         const QRectF r = m_dropIndicator.toRect();