Introduce "isExpandable" role

[dolphin.git] / src / kitemviews / kfileitemlistwidget.cpp

diff --git a/src/kitemviews/kfileitemlistwidget.cpp b/src/kitemviews/kfileitemlistwidget.cpp
index 9668270176a460ff0f1409a5e658dafebac2affd..d3e792ea0d7b76324fb96b7c67a0b9698c699c4a 100644 (file)
--- a/src/kitemviews/kfileitemlistwidget.cpp
+++ b/src/kitemviews/kfileitemlistwidget.cpp
@@ -38,13 +38,13 @@
 #include <QTextLayout>
 #include <QTextLine>
 
-//#define KFILEITEMLISTWIDGET_DEBUG
+// #define KFILEITEMLISTWIDGET_DEBUG
 
 KFileItemListWidget::KFileItemListWidget(QGraphicsItem* parent) :
     KItemListWidget(parent),
     m_isCut(false),
     m_isHidden(false),
-    m_isDir(false),
+    m_isExpandable(false),
     m_dirtyLayout(true),
     m_dirtyContent(true),
     m_dirtyContentRoles(),
@@ -95,7 +95,7 @@ void KFileItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsIte
     KItemListWidget::paint(painter, option, widget);
 
     // Draw expansion toggle '>' or 'V'
-    if (m_isDir && !m_expansionArea.isEmpty()) {
+    if (m_isExpandable) {
         QStyleOption arrowOption;
         arrowOption.rect = m_expansionArea.toRect();
         const QStyle::PrimitiveElement arrow = data()["isExpanded"].toBool()
@@ -169,7 +169,7 @@ QRectF KFileItemListWidget::textRect() const
 QRectF KFileItemListWidget::expansionToggleRect() const
 {
     const_cast<KFileItemListWidget*>(this)->triggerCacheRefreshing();
-    return m_isDir ? m_expansionArea : QRectF();
+    return m_isExpandable ? m_expansionArea : QRectF();
 }
 
 QRectF KFileItemListWidget::selectionToggleRect() const
@@ -405,7 +405,7 @@ void KFileItemListWidget::triggerCacheRefreshing()
     refreshCache();
 
     const QHash<QByteArray, QVariant> values = data();
-    m_isDir = values["isDir"].toBool();
+    m_isExpandable = values["isExpandable"].toBool();
     m_isHidden = values["name"].toString().startsWith(QLatin1Char('.'));
 
     updateExpansionArea();
@@ -424,15 +424,17 @@ void KFileItemListWidget::updateExpansionArea()
         Q_ASSERT(values.contains("expansionLevel"));
         const KItemListStyleOption& option = styleOption();
         const int expansionLevel = values.value("expansionLevel", 0).toInt();
-
-        const qreal widgetHeight = size().height();
-        const qreal expansionLevelSize = KIconLoader::SizeSmall;
-        const qreal x = option.margin + expansionLevel * widgetHeight;
-        const qreal y = (widgetHeight - expansionLevelSize) / 2;
-        m_expansionArea = QRectF(x, y, expansionLevelSize, expansionLevelSize);
-    } else {
-        m_expansionArea = QRectF();
+        if (expansionLevel >= 0) {
+            const qreal widgetHeight = size().height();
+            const qreal expansionLevelSize = KIconLoader::SizeSmall;
+            const qreal x = option.margin + expansionLevel * widgetHeight;
+            const qreal y = (widgetHeight - expansionLevelSize) / 2;
+            m_expansionArea = QRectF(x, y, expansionLevelSize, expansionLevelSize);
+            return;
+        }
     }
+
+    m_expansionArea = QRectF();
 }
 
 void KFileItemListWidget::updatePixmapCache()
@@ -460,7 +462,8 @@ void KFileItemListWidget::updatePixmapCache()
     if (!updatePixmap && m_dirtyContent) {
         updatePixmap = m_dirtyContentRoles.isEmpty()
                        || m_dirtyContentRoles.contains("iconPixmap")
-                       || m_dirtyContentRoles.contains("iconName");
+                       || m_dirtyContentRoles.contains("iconName")
+                       || m_dirtyContentRoles.contains("iconOverlays");
     }
 
     if (updatePixmap) {
@@ -507,6 +510,22 @@ void KFileItemListWidget::updatePixmapCache()
             m_originalPixmapSize = m_pixmap.size();
         }
 
+        const QStringList overlays = values["iconOverlays"].toStringList();
+
+        // Strangely KFileItem::overlays() returns empty string-values, so
+        // we need to check first whether an overlay must be drawn at all.
+        // It is more efficient to do it here, as KIconLoader::drawOverlays()
+        // assumes that an overlay will be drawn and has some additional
+        // setup time.
+        foreach (const QString& overlay, overlays) {
+            if (!overlay.isEmpty()) {
+                // There is at least one overlay, draw all overlays above m_pixmap
+                // and cancel the check
+                KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
+                break;
+            }
+        }
+
         if (m_isCut) {
             applyCutEffect(m_pixmap);
         }