X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/f23e9496f303995557b744c03178f5dbd9b35016..ebfcb5e19b345a0fbb2425f537232f45d3b3d62a:/src/kitemviews/kitemlistwidget.cpp

diff --git a/src/kitemviews/kitemlistwidget.cpp b/src/kitemviews/kitemlistwidget.cpp
index 3f08d9f7a..6a7111ad7 100644
--- a/src/kitemviews/kitemlistwidget.cpp
+++ b/src/kitemviews/kitemlistwidget.cpp
@@ -25,38 +25,62 @@
 #include "kitemlistview.h"
 #include "kitemmodelbase.h"
 
+#include "private/kitemlistselectiontoggle.h"
+
 #include <KDebug>
 
+#include <KGlobalSettings>
+#include <QApplication>
 #include <QPainter>
 #include <QPropertyAnimation>
-#include <QStyle>
+#include <QStyleOption>
 
-KItemListWidget::KItemListWidget(QGraphicsItem* parent) :
+KItemListWidgetInformant::KItemListWidgetInformant()
+{
+}
+
+KItemListWidgetInformant::~KItemListWidgetInformant()
+{
+}
+
+KItemListWidget::KItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
     QGraphicsWidget(parent, 0),
+    m_informant(informant),
     m_index(-1),
+    m_selected(false),
+    m_current(false),
+    m_hovered(false),
+    m_alternateBackground(false),
+    m_enabledSelectionToggle(false),
     m_data(),
     m_visibleRoles(),
-    m_visibleRolesSizes(),
+    m_columnWidths(),
     m_styleOption(),
+    m_siblingsInfo(),
     m_hoverOpacity(0),
     m_hoverCache(0),
-    m_hoverAnimation(0)
+    m_hoverAnimation(0),
+    m_selectionToggle(0),
+    m_editedRole()
 {
 }
 
 KItemListWidget::~KItemListWidget()
 {
-    clearCache();
+    clearHoverCache();
 }
 
 void KItemListWidget::setIndex(int index)
 {
     if (m_index != index) {
+        delete m_selectionToggle;
+        m_selectionToggle = 0;
+
         if (m_hoverAnimation) {
             m_hoverAnimation->stop();
             m_hoverOpacity = 0;
         }
-        clearCache();
+        clearHoverCache();
 
         m_index = index;
     }
@@ -70,7 +94,7 @@ int KItemListWidget::index() const
 void KItemListWidget::setData(const QHash<QByteArray, QVariant>& data,
                               const QSet<QByteArray>& roles)
 {
-    clearCache();
+    clearHoverCache();
     if (roles.isEmpty()) {
         m_data = data;
         dataChanged(m_data);
@@ -80,6 +104,7 @@ void KItemListWidget::setData(const QHash<QByteArray, QVariant>& data,
         }
         dataChanged(m_data, roles);
     }
+    update();
 }
 
 QHash<QByteArray, QVariant> KItemListWidget::data() const
@@ -90,106 +115,239 @@ QHash<QByteArray, QVariant> KItemListWidget::data() const
 void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 {
     Q_UNUSED(option);
-    if (m_hoverOpacity <= 0.0) {
-        return;
-    }
 
-    const QRect hoverBounds = hoverBoundingRect().toRect();
-    if (!m_hoverCache) {
-        m_hoverCache = new QPixmap(hoverBounds.size());
-        m_hoverCache->fill(Qt::transparent);
+    if (m_alternateBackground) {
+        const QColor backgroundColor = m_styleOption.palette.color(QPalette::AlternateBase);
+        const QRectF backgroundRect(0, 0, size().width(), size().height());
+        painter->fillRect(backgroundRect, backgroundColor);
+    }
 
-        QPainter pixmapPainter(m_hoverCache);
+    if (m_selected && m_editedRole.isEmpty()) {
+        const QStyle::State activeState(isActiveWindow() ? QStyle::State_Active : 0);
+        drawItemStyleOption(painter, widget, activeState |
+                                             QStyle::State_Enabled |
+                                             QStyle::State_Selected |
+                                             QStyle::State_Item);
+    }
 
-        QStyleOptionViewItemV4 viewItemOption;
-        viewItemOption.initFrom(widget);
-        viewItemOption.rect = QRect(0, 0, hoverBounds.width(), hoverBounds.height());
-        viewItemOption.state = QStyle::State_Enabled | QStyle::State_MouseOver;
-        viewItemOption.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
+    if (m_current && m_editedRole.isEmpty()) {
+        QStyleOptionFocusRect focusRectOption;
+        focusRectOption.initFrom(widget);
+        focusRectOption.rect = textFocusRect().toRect();
+        focusRectOption.state = QStyle::State_Enabled | QStyle::State_Item | QStyle::State_KeyboardFocusChange;
+        if (m_selected) {
+            focusRectOption.state |= QStyle::State_Selected;
+        }
 
-        widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, &pixmapPainter, widget);
+        style()->drawPrimitive(QStyle::PE_FrameFocusRect, &focusRectOption, painter, widget);
     }
 
-    const qreal opacity = painter->opacity();
-    painter->setOpacity(m_hoverOpacity * opacity);
-    painter->drawPixmap(hoverBounds.topLeft(), *m_hoverCache);
-    painter->setOpacity(opacity);
+    if (m_hoverOpacity > 0.0) {
+        if (!m_hoverCache) {
+            // Initialize the m_hoverCache pixmap to improve the drawing performance
+            // when fading the hover background
+            m_hoverCache = new QPixmap(size().toSize());
+            m_hoverCache->fill(Qt::transparent);
+
+            QPainter pixmapPainter(m_hoverCache);
+            const QStyle::State activeState(isActiveWindow() ? QStyle::State_Active : 0);
+            drawItemStyleOption(&pixmapPainter, widget, activeState |
+                                                        QStyle::State_Enabled |
+                                                        QStyle::State_MouseOver |
+                                                        QStyle::State_Item);
+        }
+
+        const qreal opacity = painter->opacity();
+        painter->setOpacity(m_hoverOpacity * opacity);
+        painter->drawPixmap(0, 0, *m_hoverCache);
+        painter->setOpacity(opacity);
+    }
 }
 
-void KItemListWidget::setVisibleRoles(const QHash<QByteArray, int>& roles)
+void KItemListWidget::setVisibleRoles(const QList<QByteArray>& roles)
 {
-    const QHash<QByteArray, int> previousRoles = m_visibleRoles;
+    const QList<QByteArray> previousRoles = m_visibleRoles;
     m_visibleRoles = roles;
+
     visibleRolesChanged(roles, previousRoles);
+    update();
 }
 
-QHash<QByteArray, int> KItemListWidget::visibleRoles() const
+QList<QByteArray> KItemListWidget::visibleRoles() const
 {
     return m_visibleRoles;
 }
 
-void KItemListWidget::setVisibleRolesSizes(const QHash<QByteArray, QSizeF> rolesSizes)
+
+void KItemListWidget::setColumnWidth(const QByteArray& role, qreal width)
 {
-    const QHash<QByteArray, QSizeF> previousRolesSizes = m_visibleRolesSizes;
-    m_visibleRolesSizes = rolesSizes;
-    visibleRolesSizesChanged(rolesSizes, previousRolesSizes);
+    if (m_columnWidths.value(role) != width) {
+        const qreal previousWidth = width;
+        m_columnWidths.insert(role, width);
+        columnWidthChanged(role, width, previousWidth);
+        update();
+    }
 }
 
-QHash<QByteArray, QSizeF> KItemListWidget::visibleRolesSizes() const
+qreal KItemListWidget::columnWidth(const QByteArray& role) const
 {
-    return m_visibleRolesSizes;
+    return m_columnWidths.value(role);
 }
 
 void KItemListWidget::setStyleOption(const KItemListStyleOption& option)
 {
     const KItemListStyleOption previous = m_styleOption;
-    if (m_index >= 0) {
-        clearCache();
-
-        const bool wasHovered = (previous.state & QStyle::State_MouseOver);
-        m_styleOption = option;
-        const bool isHovered = (m_styleOption.state & QStyle::State_MouseOver);
-
-        if (wasHovered != isHovered) {
-            // The hovering state has been changed. Assure that a fade-animation
-            // is done to the new state.
-            if (!m_hoverAnimation) {
-                m_hoverAnimation = new QPropertyAnimation(this, "hoverOpacity", this);
-                m_hoverAnimation->setDuration(200);
-            }
-            m_hoverAnimation->stop();
+    clearHoverCache();
+    m_styleOption = option;
+
+    styleOptionChanged(option, previous);
+    update();
+}
 
-            if (!wasHovered && isHovered) {
-                m_hoverAnimation->setEndValue(1.0);
-            } else {
-                Q_ASSERT(wasHovered && !isHovered);
-                m_hoverAnimation->setEndValue(0.0);
-            }
+const KItemListStyleOption& KItemListWidget::styleOption() const
+{
+    return m_styleOption;
+}
 
-            m_hoverAnimation->start();
+void KItemListWidget::setSelected(bool selected)
+{
+    if (m_selected != selected) {
+        m_selected = selected;
+        if (m_selectionToggle) {
+            m_selectionToggle->setChecked(selected);
+        }
+        selectedChanged(selected);
+        update();
+    }
+}
+
+bool KItemListWidget::isSelected() const
+{
+    return m_selected;
+}
+
+void KItemListWidget::setCurrent(bool current)
+{
+    if (m_current != current) {
+        m_current = current;
+        currentChanged(current);
+        update();
+    }
+}
+
+bool KItemListWidget::isCurrent() const
+{
+    return m_current;
+}
+
+void KItemListWidget::setHovered(bool hovered)
+{
+    if (hovered == m_hovered) {
+        return;
+    }
+
+    m_hovered = hovered;
+
+    if (!m_hoverAnimation) {
+        m_hoverAnimation = new QPropertyAnimation(this, "hoverOpacity", this);
+        const int duration = (KGlobalSettings::graphicEffectsLevel() == KGlobalSettings::NoEffects) ? 1 : 200;
+        m_hoverAnimation->setDuration(duration);
+        connect(m_hoverAnimation, SIGNAL(finished()), this, SLOT(slotHoverAnimationFinished()));
+    }
+    m_hoverAnimation->stop();
+
+    if (hovered) {
+        const qreal startValue = qMax(hoverOpacity(), qreal(0.1));
+        m_hoverAnimation->setStartValue(startValue);
+        m_hoverAnimation->setEndValue(1.0);
+        if (m_enabledSelectionToggle && !(QApplication::mouseButtons() & Qt::LeftButton)) {
+            initializeSelectionToggle();
         }
     } else {
-        m_styleOption = option;
+        m_hoverAnimation->setStartValue(hoverOpacity());
+        m_hoverAnimation->setEndValue(0.0);
     }
 
-    styleOptionChanged(option, previous);
+    m_hoverAnimation->start();
+
+    hoveredChanged(hovered);
+    update();
 }
 
-const KItemListStyleOption& KItemListWidget::styleOption() const
+bool KItemListWidget::isHovered() const
 {
-    return m_styleOption;
+    return m_hovered;
+}
+
+void KItemListWidget::setAlternateBackground(bool enable)
+{
+    if (m_alternateBackground != enable) {
+        m_alternateBackground = enable;
+        alternateBackgroundChanged(enable);
+        update();
+    }
+}
+
+bool KItemListWidget::alternateBackground() const
+{
+    return m_alternateBackground;
+}
+
+void KItemListWidget::setEnabledSelectionToggle(bool enable)
+{
+    if (m_enabledSelectionToggle != enable) {
+        m_enabledSelectionToggle = enable;
+        update();
+    }
+}
+
+bool KItemListWidget::enabledSelectionToggle() const
+{
+    return m_enabledSelectionToggle;
+}
+
+void KItemListWidget::setSiblingsInformation(const QBitArray& siblings)
+{
+    const QBitArray previous = m_siblingsInfo;
+    m_siblingsInfo = siblings;
+    siblingsInformationChanged(m_siblingsInfo, previous);
+    update();
+}
+
+QBitArray KItemListWidget::siblingsInformation() const
+{
+    return m_siblingsInfo;
+}
+
+void KItemListWidget::setEditedRole(const QByteArray& role)
+{
+    if (m_editedRole != role) {
+        const QByteArray previous = m_editedRole;
+        m_editedRole = role;
+        editedRoleChanged(role, previous);
+    }
+}
+
+QByteArray KItemListWidget::editedRole() const
+{
+    return m_editedRole;
 }
 
 bool KItemListWidget::contains(const QPointF& point) const
 {
-    return hoverBoundingRect().contains(point) ||
+    if (!QGraphicsWidget::contains(point)) {
+        return false;
+    }
+
+    return iconRect().contains(point) ||
+           textRect().contains(point) ||
            expansionToggleRect().contains(point) ||
            selectionToggleRect().contains(point);
 }
 
-QRectF KItemListWidget::hoverBoundingRect() const
+QRectF KItemListWidget::textFocusRect() const
 {
-    return QRectF(QPointF(0, 0), size());
+    return textRect();
 }
 
 QRectF KItemListWidget::selectionToggleRect() const
@@ -202,28 +360,52 @@ QRectF KItemListWidget::expansionToggleRect() const
     return QRectF();
 }
 
+QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
+                                          QWidget* widget)
+{
+    QPixmap pixmap(size().toSize());
+    pixmap.fill(Qt::transparent);
+
+    QPainter painter(&pixmap);
+
+    const bool oldAlternateBackground = m_alternateBackground;
+    const bool wasSelected = m_selected;
+    const bool wasHovered = m_hovered;
+
+    setAlternateBackground(false);
+    setSelected(false);
+    setHovered(false);
+
+    paint(&painter, option, widget);
+
+    setAlternateBackground(oldAlternateBackground);
+    setSelected(wasSelected);
+    setHovered(wasHovered);
+
+    return pixmap;
+}
+
 void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
                                   const QSet<QByteArray>& roles)
 {
     Q_UNUSED(current);
     Q_UNUSED(roles);
-    update();
 }
 
-void KItemListWidget::visibleRolesChanged(const QHash<QByteArray, int>& current,
-                                          const QHash<QByteArray, int>& previous)
+void KItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
+                                          const QList<QByteArray>& previous)
 {
     Q_UNUSED(current);
     Q_UNUSED(previous);
-    update();
 }
 
-void KItemListWidget::visibleRolesSizesChanged(const QHash<QByteArray, QSizeF>& current,
-                                               const QHash<QByteArray, QSizeF>& previous)
+void KItemListWidget::columnWidthChanged(const QByteArray& role,
+                                         qreal current,
+                                         qreal previous)
 {
+    Q_UNUSED(role);
     Q_UNUSED(current);
     Q_UNUSED(previous);
-    update();
 }
 
 void KItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
@@ -231,13 +413,44 @@ void KItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 {
     Q_UNUSED(current);
     Q_UNUSED(previous);
-    update();
+}
+
+void KItemListWidget::currentChanged(bool current)
+{
+    Q_UNUSED(current);
+}
+
+void KItemListWidget::selectedChanged(bool selected)
+{
+    Q_UNUSED(selected);
+}
+
+void KItemListWidget::hoveredChanged(bool hovered)
+{
+    Q_UNUSED(hovered);
+}
+
+void KItemListWidget::alternateBackgroundChanged(bool enabled)
+{
+    Q_UNUSED(enabled);
+}
+
+void KItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
+{
+    Q_UNUSED(current);
+    Q_UNUSED(previous);
+}
+
+void KItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
+{
+    Q_UNUSED(current);
+    Q_UNUSED(previous);
 }
 
 void KItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 {
     QGraphicsWidget::resizeEvent(event);
-    clearCache();
+    clearHoverCache();
 }
 
 qreal KItemListWidget::hoverOpacity() const
@@ -245,16 +458,59 @@ qreal KItemListWidget::hoverOpacity() const
     return m_hoverOpacity;
 }
 
+void KItemListWidget::slotHoverAnimationFinished()
+{
+    if (!m_hovered) {
+        delete m_selectionToggle;
+        m_selectionToggle = 0;
+    }
+}
+
+void KItemListWidget::initializeSelectionToggle()
+{
+    Q_ASSERT(m_enabledSelectionToggle);
+
+    if (!m_selectionToggle) {
+        m_selectionToggle = new KItemListSelectionToggle(this);
+    }
+
+    const QRectF toggleRect = selectionToggleRect();
+    m_selectionToggle->setPos(toggleRect.topLeft());
+    m_selectionToggle->resize(toggleRect.size());
+
+    m_selectionToggle->setChecked(isSelected());
+}
+
 void KItemListWidget::setHoverOpacity(qreal opacity)
 {
     m_hoverOpacity = opacity;
+    if (m_selectionToggle) {
+        m_selectionToggle->setOpacity(opacity);
+    }
+
+    if (m_hoverOpacity <= 0.0) {
+        delete m_hoverCache;
+        m_hoverCache = 0;
+    }
+
     update();
 }
 
-void KItemListWidget::clearCache()
+void KItemListWidget::clearHoverCache()
 {
     delete m_hoverCache;
     m_hoverCache = 0;
 }
 
+void KItemListWidget::drawItemStyleOption(QPainter* painter, QWidget* widget, QStyle::State styleState)
+{
+    QStyleOptionViewItemV4 viewItemOption;
+    viewItemOption.initFrom(widget);
+    viewItemOption.state = styleState;
+    viewItemOption.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
+    viewItemOption.showDecorationSelected = true;
+    viewItemOption.rect = textRect().toRect();
+    widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
+}
+
 #include "kitemlistwidget.moc"