fix: When there are multiple lines of files in the document management system, only the last line will be displayed. When selected, a slider will be displayed, and other lines will not be displayed

src/plugins/filemanager/core/dfmplugin-workspace/utils/fileviewhelper.cpp

@@ -260,6 +260,12 @@ int FileViewHelper::verticalOffset() const
     return parent()->verticalOffset();
 }
 
+bool FileViewHelper::isLastIndex(const QModelIndex &index)
+{
+    int rowCount = parent()->model()->rowCount(parent()->rootIndex());
+    return index.row() + 1 == rowCount;
+}
+
 int FileViewHelper::caculateListItemIndex(const QSize &itemSize, const QPoint &pos)
 {
     if (pos.y() % (itemSize.height() + kListViewSpacing * 2) < kListViewSpacing)

src/plugins/filemanager/core/dfmplugin-workspace/utils/fileviewhelper.h

@@ -41,6 +41,7 @@ class FileViewHelper : public QObject
     bool isEmptyArea(const QPoint &pos);
     QSize viewContentSize() const;
     int verticalOffset() const;
+    bool isLastIndex(const QModelIndex &index);
 
     static int caculateListItemIndex(const QSize &itemSize, const QPoint &pos);
     static int caculateIconItemIndex(const FileView *view, const QSize &itemSize, const QPoint &pos);

src/plugins/filemanager/core/dfmplugin-workspace/views/expandedItem.cpp

@@ -204,3 +204,13 @@ QRectF ExpandedItem::iconGeometry() const
 
     return iconRect;
 }
+
+void ExpandedItem::setDifferenceOfLastRow(const int diff)
+{
+    this->diff = diff < 0 ? 0 : diff;
+}
+
+int ExpandedItem::getDifferenceOfLastRow() const
+{
+    return diff;
+}

src/plugins/filemanager/core/dfmplugin-workspace/views/expandedItem.h

@@ -42,6 +42,8 @@ class ExpandedItem : public QWidget
     void setOption(QStyleOptionViewItem opt);
     QRectF textGeometry(int width = -1) const;
     QRectF iconGeometry() const;
+    void setDifferenceOfLastRow(const int diff);
+    int getDifferenceOfLastRow() const;
 
 private:
     QPixmap iconPixmap;
@@ -52,6 +54,7 @@ class ExpandedItem : public QWidget
     qreal opacity { 1 };
     bool canDeferredDelete { true };
     IconItemDelegate *delegate { nullptr };
+    int diff { 0 };
 };
 }
 

src/plugins/filemanager/core/dfmplugin-workspace/views/iconitemdelegate.cpp

@@ -568,6 +568,8 @@ void IconItemDelegate::paintItemFileName(QPainter *painter, QRectF iconRect, QPa
 
     // if has selected show all file name else show elide file name.
     bool isSelected = !isDragMode && isSelectedOpt && opt.showDecorationSelected;
+    if (!singleSelected)
+        d->expandedItem->setDifferenceOfLastRow(0);
 
     if (isSelected && singleSelected) {
         const_cast<IconItemDelegate *>(this)->hideNotEditingIndexWidget();
@@ -582,17 +584,15 @@ void IconItemDelegate::paintItemFileName(QPainter *painter, QRectF iconRect, QPa
         d->expandedItem->setOption(opt);
         d->expandedItem->setTextBounding(QRectF());
         d->expandedItem->setFixedWidth(0);
-
-        if (parent()->parent()->indexOfRow(index) == parent()->parent()->rowCount() - 1) {
-            d->lastAndExpandedIndex = index;
-        }
+        d->expandedItem->setDifferenceOfLastRow(parent()->parent()->rowCount() - parent()->parent()->indexOfRow(index) - 1);
 
         updateEditorGeometry(d->expandedItem, opt, index);
 
         return;
     } else {
         if (!singleSelected) {
             const_cast<IconItemDelegate *>(this)->hideNotEditingIndexWidget();
+            d->lastAndExpandedIndex = QModelIndex();
         }
     }
 
@@ -630,9 +630,13 @@ QSize IconItemDelegate::sizeHint(const QStyleOptionViewItem &, const QModelIndex
 
     const QSize &size = d->itemSizeHint;
 
-    if (index.isValid() && index == d->lastAndExpandedIndex) {
+    // 如果有一个选中，名称显示很长时，最后一个index时设置item的高度为最多，右边才会出现滑动块
+    if(index.isValid() && parent()->isLastIndex(index) && d->expandedItem
+            && d->expandedIndex.isValid() && d->expandedItem->isVisible()) {
         d->expandedItem->setIconHeight(parent()->parent()->iconSize().height());
-        return QSize(size.width(), d->expandedItem->heightForWidth(size.width()));
+        auto hight = qMax(size.height(), d->expandedItem->heightForWidth(size.width()) -
+                          d->expandedItem->getDifferenceOfLastRow() * size.height());
+        return QSize(size.width(), hight);
     }
 
     return size;
@@ -700,7 +704,6 @@ void IconItemDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionV
         editor->setFixedWidth(option.rect.width());
         d->expandedItem->setIconHeight(iconSize.height());
         editor->adjustSize();
-
         return;
     }