Merge branch for accessibility

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

diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp
index 7ae7e2efcffc2f68c72a05cdbc3b29abc4c3aff4..97c8a038b5324f683c0929d8f2a2324b0c6f32e5 100644 (file)
--- a/src/kitemviews/kstandarditemlistwidget.cpp
+++ b/src/kitemviews/kstandarditemlistwidget.cpp
@@ -68,6 +68,14 @@ QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemList
         const qreal maxWidth = itemWidth - 2 * option.padding;
         QTextLine line;
 
+        int emptyRolesCount = 0;
+        foreach (const QByteArray& role, view->visibleRoles()) {
+            const QString text = roleText(role, values);
+            if (role != "text" && role != "rating" && text.isEmpty()) {
+                emptyRolesCount++;
+            }
+        }
+
         // Calculate the number of lines required for wrapping the name
         QTextOption textOption(Qt::AlignHCenter);
         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
@@ -84,7 +92,7 @@ QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemList
         layout.endLayout();
 
         // Add one line for each additional information
-        textHeight += additionalRolesCount * option.fontMetrics.lineSpacing();
+        textHeight += (additionalRolesCount - emptyRolesCount) * option.fontMetrics.lineSpacing();
 
         const qreal maxTextHeight = option.maxTextSize.height();
         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
@@ -263,6 +271,16 @@ void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphic
     painter->setFont(m_customizedFont);
     painter->setPen(m_isHidden ? m_additionalInfoTextColor : textColor());
     const TextInfo* textInfo = m_textInfo.value("text");
+
+    if (!textInfo) {
+        // It seems that we can end up here even if m_textInfo does not contain
+        // the key "text", see bug 306167. According to triggerCacheRefreshing(),
+        // this can only happen if the index is negative. This can happen when
+        // the item is about to be removed, see KItemListView::slotItemsRemoved().
+        // TODO: try to reproduce the crash and find a better fix.
+        return;
+    }
+
     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 
     bool clipAdditionalInfoBounds = false;
@@ -970,8 +988,17 @@ void KStandardItemListWidget::updateIconsLayoutTextCache()
     qreal nameHeight = 0;
     QTextLine line;
 
+    int emptyRolesCount = 0;
+    foreach (const QByteArray& role, visibleRoles()) {
+        const QString text = roleText(role, values);
+        if (role != "text" && role != "rating" && text.isEmpty()) {
+            emptyRolesCount++;
+        }
+    }
+
     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
-    const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
+    const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) -
+                             (additionalRolesCount - emptyRolesCount);
 
     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
     layout.setTextOption(nameTextInfo->staticText.textOption());
@@ -1005,7 +1032,7 @@ void KStandardItemListWidget::updateIconsLayoutTextCache()
     nameTextInfo->staticText.setTextWidth(maxWidth);
     nameTextInfo->pos = QPointF(padding, widgetHeight -
                                          nameHeight -
-                                         additionalRolesCount * lineSpacing -
+                                         (additionalRolesCount - emptyRolesCount)* lineSpacing -
                                          padding);
     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
                         nameTextInfo->pos.y(),
@@ -1020,6 +1047,11 @@ void KStandardItemListWidget::updateIconsLayoutTextCache()
         }
 
         const QString text = roleText(role, values);
+
+        if (role != "text" && role != "rating" && text.isEmpty()) {
+            continue;
+        }
+
         TextInfo* textInfo = m_textInfo.value(role);
         textInfo->staticText.setText(text);