New selection effects

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

diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp
index 49d2f26bfd945db1feedf96f15607abe8487541b..d078b06573f3f5a35a3d0fba3b1699cc29a6acf9 100644 (file)
--- a/src/kitemviews/kstandarditemlistwidget.cpp
+++ b/src/kitemviews/kstandarditemlistwidget.cpp
@@ -271,7 +271,6 @@ KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant *infor
     , m_scaledPixmapSize()
     , m_columnWidthSum()
     , m_iconRect()
-    , m_hoverPixmap()
     , m_textRect()
     , m_sortedVisibleRoles()
     , m_expansionArea()
@@ -346,7 +345,7 @@ void KStandardItemListWidget::paint(QPainter *painter, const QStyleOptionGraphic
         drawSiblingsInformation(painter);
     }
 
-    auto pixmap = isHovered() ? m_hoverPixmap : m_pixmap;
+    auto pixmap = m_pixmap;
     if (!m_overlays.isEmpty()) {
         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
 
@@ -388,7 +387,7 @@ void KStandardItemListWidget::paint(QPainter *painter, const QStyleOptionGraphic
             {
                 QPainter p(&pixmap2);
                 p.setOpacity(hoverOpacity());
-                p.drawPixmap(0, 0, m_hoverPixmap);
+                p.drawPixmap(0, 0, m_pixmap);
             }
 
             // Paint pixmap2 on pixmap1 using CompositionMode_Plus
@@ -484,12 +483,6 @@ void KStandardItemListWidget::paint(QPainter *painter, const QStyleOptionGraphic
 #endif
 }
 
-QRectF KStandardItemListWidget::iconRect() const
-{
-    const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
-    return m_iconRect;
-}
-
 QRectF KStandardItemListWidget::textRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
@@ -537,35 +530,36 @@ QRectF KStandardItemListWidget::textFocusRect() const
     return m_textRect;
 }
 
-QRectF KStandardItemListWidget::selectionRect() const
+QRectF KStandardItemListWidget::selectionRectFull() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
-
-    switch (m_layout) {
-    case IconsLayout:
-        return m_textRect;
-
-    case CompactLayout:
-    case DetailsLayout: {
-        const int padding = styleOption().padding;
-        QRectF adjustedIconRect = iconRect().adjusted(-padding, -padding, padding, padding);
-        QRectF result = adjustedIconRect | m_textRect;
+    const int padding = styleOption().padding;
+    if (m_layout == DetailsLayout) {
+        auto rect = m_iconRect | m_textRect;
         if (m_highlightEntireRow) {
             if (layoutDirection() == Qt::LeftToRight) {
-                result.setRight(leftPadding() + m_columnWidthSum);
+                rect.setRight(leftPadding() + m_columnWidthSum);
             } else {
-                result.setLeft(size().width() - m_columnWidthSum - rightPadding());
+                rect.setLeft(size().width() - m_columnWidthSum - rightPadding());
             }
         }
-        return result;
+        return rect.adjusted(-padding, 0, padding, 0);
+    } else {
+        if (m_layout == CompactLayout) {
+            return rect().adjusted(-padding, 0, padding, 0);
+        }
+        return rect();
     }
+}
 
-    default:
-        Q_ASSERT(false);
-        break;
+QRectF KStandardItemListWidget::selectionRectCore() const
+{
+    // Allow dragging from selection area in details view.
+    if (m_layout == DetailsLayout && highlightEntireRow() && !isSelected()) {
+        QRectF result = m_iconRect | m_textRect;
+        return result;
     }
-
-    return m_textRect;
+    return selectionRectFull();
 }
 
 QRectF KStandardItemListWidget::expansionToggleRect() const
@@ -578,7 +572,6 @@ QRectF KStandardItemListWidget::selectionToggleRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 
-    const QRectF widgetIconRect = iconRect();
     const int widgetIconSize = iconSize();
     int toggleSize = KIconLoader::SizeSmall;
     if (widgetIconSize >= KIconLoader::SizeEnormous) {
@@ -587,29 +580,11 @@ QRectF KStandardItemListWidget::selectionToggleRect() const
         toggleSize = KIconLoader::SizeSmallMedium;
     }
 
-    QPointF pos = widgetIconRect.topLeft();
-
-    // If the selection toggle has a very small distance to the
-    // widget borders, the size of the selection toggle will get
-    // increased to prevent an accidental clicking of the item
-    // when trying to hit the toggle.
-    const int widgetHeight = size().height();
-    const int widgetWidth = size().width();
-    const int minMargin = 2;
-
-    if (toggleSize + minMargin * 2 >= widgetHeight) {
-        pos.rx() -= (widgetHeight - toggleSize) / 2;
-        toggleSize = widgetHeight;
-        pos.setY(0);
-    }
-    if (toggleSize + minMargin * 2 >= widgetWidth) {
-        pos.ry() -= (widgetWidth - toggleSize) / 2;
-        toggleSize = widgetWidth;
-        pos.setX(0);
-    }
-
+    const int padding = styleOption().padding;
+    const QRectF selectionRectMinusPadding = selectionRectFull().adjusted(padding, padding, -padding, -padding);
+    QPointF pos = selectionRectMinusPadding.topLeft();
     if (QApplication::isRightToLeft()) {
-        pos.setX(widgetIconRect.right() - (pos.x() + toggleSize - widgetIconRect.left()));
+        pos.setX(selectionRectMinusPadding.right() - (pos.x() + toggleSize - selectionRectMinusPadding.left()));
     }
 
     return QRectF(pos, QSizeF(toggleSize, toggleSize));
@@ -725,7 +700,11 @@ QFont KStandardItemListWidget::customizedFont(const QFont &baseFont) const
 
 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 {
-    return QPalette::Text;
+    if (isPressed()) {
+        return QPalette::HighlightedText;
+    } else {
+        return QPalette::Text;
+    }
 }
 
 void KStandardItemListWidget::setTextColor(const QColor &color)
@@ -748,7 +727,7 @@ QColor KStandardItemListWidget::textColor(const QWidget &widget) const
     }
 
     const QPalette::ColorGroup group = isActiveWindow() && widget.hasFocus() ? QPalette::Active : QPalette::Inactive;
-    const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
+    const QPalette::ColorRole role = normalTextColorRole();
     return styleOption().palette.color(group, role);
 }
 
@@ -1136,7 +1115,6 @@ void KStandardItemListWidget::updatePixmapCache()
         }
 
         if (m_pixmap.isNull()) {
-            m_hoverPixmap = QPixmap();
             return;
         }
 
@@ -1147,17 +1125,6 @@ void KStandardItemListWidget::updatePixmapCache()
         if (m_isHidden) {
             KIconEffect::semiTransparent(m_pixmap);
         }
-
-        if (m_layout == IconsLayout && isSelected()) {
-            const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
-            QImage image = m_pixmap.toImage();
-            if (image.isNull()) {
-                m_hoverPixmap = QPixmap();
-                return;
-            }
-            KIconEffect::colorize(image, color, 0.8f);
-            m_pixmap = QPixmap::fromImage(image);
-        }
     }
 
     int scaledIconSize = 0;
@@ -1205,15 +1172,6 @@ void KStandardItemListWidget::updatePixmapCache()
         const QSizeF squareIconSize(widgetIconSize, widgetIconSize);
         m_iconRect = QRectF(squareIconPos, squareIconSize);
     }
-
-    // Prepare the pixmap that is used when the item gets hovered
-    if (isHovered()) {
-        m_hoverPixmap = m_pixmap;
-        KIconEffect::toActive(m_hoverPixmap);
-    } else if (hoverOpacity() <= 0.0) {
-        // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
-        m_hoverPixmap = QPixmap();
-    }
 }
 
 void KStandardItemListWidget::updateTextsCache()
@@ -1571,7 +1529,7 @@ void KStandardItemListWidget::updateAdditionalInfoTextColor()
     } else if (isSelected() && hasFocus && (m_layout != DetailsLayout || m_highlightEntireRow)) {
         // The detail text color needs to match the main text (HighlightedText) for the same level
         // of readability. We short circuit early here to avoid interpolating with another color.
-        m_additionalInfoTextColor = styleOption().palette.color(QPalette::HighlightedText);
+        m_additionalInfoTextColor = styleOption().palette.color(normalTextColorRole());
         return;
     } else {
         c1 = styleOption().palette.text().color();