X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/ccb3658b3aa7f5b0f0b71cb6e91808bdfe58af64..0464ea82a6850f58805bc4d6fc1df5369d83c3df:/src/kitemviews/kitemlistwidget.cpp

diff --git a/src/kitemviews/kitemlistwidget.cpp b/src/kitemviews/kitemlistwidget.cpp
index 65fc911bd..baf244572 100644
--- a/src/kitemviews/kitemlistwidget.cpp
+++ b/src/kitemviews/kitemlistwidget.cpp
@@ -1,32 +1,18 @@
-/***************************************************************************
- *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   Based on the Itemviews NG project from Trolltech Labs:                *
- *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
+ *
+ * Based on the Itemviews NG project from Trolltech Labs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "kitemlistwidget.h"
 
 #include "kitemlistview.h"
-#include "kitemmodelbase.h"
-
 #include "private/kitemlistselectiontoggle.h"
 
+#include <KConfigGroup>
+#include <KSharedConfig>
 
 #include <QApplication>
 #include <QPainter>
@@ -41,26 +27,31 @@ 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_columnWidths(),
-    m_styleOption(),
-    m_siblingsInfo(),
-    m_hoverOpacity(0),
-    m_hoverCache(0),
-    m_hoverAnimation(0),
-    m_selectionToggle(0),
-    m_editedRole()
-{
+KItemListWidget::KItemListWidget(KItemListWidgetInformant *informant, QGraphicsItem *parent)
+    : QGraphicsWidget(parent)
+    , m_informant(informant)
+    , m_index(-1)
+    , m_selected(false)
+    , m_current(false)
+    , m_hovered(false)
+    , m_expansionAreaHovered(false)
+    , m_alternateBackground(false)
+    , m_enabledSelectionToggle(false)
+    , m_data()
+    , m_visibleRoles()
+    , m_columnWidths()
+    , m_leftPadding(0)
+    , m_rightPadding(0)
+    , m_styleOption()
+    , m_siblingsInfo()
+    , m_hoverOpacity(0)
+    , m_hoverCache(nullptr)
+    , m_hoverSequenceIndex(0)
+    , m_selectionToggle(nullptr)
+    , m_editedRole()
+    , m_iconSize(-1)
+{
+    connect(&m_hoverSequenceTimer, &QTimer::timeout, this, &KItemListWidget::slotHoverSequenceTimerTimeout);
 }
 
 KItemListWidget::~KItemListWidget()
@@ -72,12 +63,10 @@ void KItemListWidget::setIndex(int index)
 {
     if (m_index != index) {
         delete m_selectionToggle;
-        m_selectionToggle = 0;
+        m_selectionToggle = nullptr;
+
+        m_hoverOpacity = 0;
 
-        if (m_hoverAnimation) {
-            m_hoverAnimation->stop();
-            m_hoverOpacity = 0;
-        }
         clearHoverCache();
 
         m_index = index;
@@ -89,15 +78,14 @@ int KItemListWidget::index() const
     return m_index;
 }
 
-void KItemListWidget::setData(const QHash<QByteArray, QVariant>& data,
-                              const QSet<QByteArray>& roles)
+void KItemListWidget::setData(const QHash<QByteArray, QVariant> &data, const QSet<QByteArray> &roles)
 {
     clearHoverCache();
     if (roles.isEmpty()) {
         m_data = data;
         dataChanged(m_data);
     } else {
-        foreach (const QByteArray& role, roles) {
+        for (const QByteArray &role : roles) {
             m_data[role] = data[role];
         }
         dataChanged(m_data, roles);
@@ -110,30 +98,43 @@ QHash<QByteArray, QVariant> KItemListWidget::data() const
     return m_data;
 }
 
-void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+QVariant KItemListWidget::value(const QByteArray &key) const
 {
-    Q_UNUSED(option);
+    return m_data.value(key);
+}
+
+void KItemListWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    Q_UNUSED(option)
 
     if (m_alternateBackground) {
-        const QColor backgroundColor = m_styleOption.palette.color(QPalette::AlternateBase);
+        QColor backgroundColor = m_styleOption.palette.color(QPalette::AlternateBase);
+        if (!widget->hasFocus()) {
+            QColor baseColor = m_styleOption.palette.color(QPalette::Base);
+            if (baseColor.lightnessF() > 0.5) {
+                // theme seems light
+                backgroundColor = backgroundColor.lighter(101);
+            } else {
+                // theme seems dark
+                backgroundColor = backgroundColor.darker(101);
+            }
+        }
+
         const QRectF backgroundRect(0, 0, size().width(), size().height());
         painter->fillRect(backgroundRect, backgroundColor);
     }
 
     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);
+        const QStyle::State activeState(isActiveWindow() && widget->hasFocus() ? QStyle::State_Active : 0);
+        drawItemStyleOption(painter, widget, activeState | QStyle::State_Enabled | QStyle::State_Selected | QStyle::State_Item);
     }
 
     if (m_current && m_editedRole.isEmpty()) {
         QStyleOptionFocusRect focusRectOption;
-        focusRectOption.initFrom(widget);
+        initStyleOption(&focusRectOption);
         focusRectOption.rect = textFocusRect().toRect();
         focusRectOption.state = QStyle::State_Enabled | QStyle::State_Item | QStyle::State_KeyboardFocusChange;
-        if (m_selected) {
+        if (m_selected && widget->hasFocus()) {
             focusRectOption.state |= QStyle::State_Selected;
         }
 
@@ -148,11 +149,8 @@ void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
             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 QStyle::State activeState(isActiveWindow() && widget->hasFocus() ? QStyle::State_Active | QStyle::State_Enabled : 0);
+            drawItemStyleOption(&pixmapPainter, widget, activeState | QStyle::State_MouseOver | QStyle::State_Item);
         }
 
         const qreal opacity = painter->opacity();
@@ -162,7 +160,7 @@ void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
     }
 }
 
-void KItemListWidget::setVisibleRoles(const QList<QByteArray>& roles)
+void KItemListWidget::setVisibleRoles(const QList<QByteArray> &roles)
 {
     const QList<QByteArray> previousRoles = m_visibleRoles;
     m_visibleRoles = roles;
@@ -176,8 +174,7 @@ QList<QByteArray> KItemListWidget::visibleRoles() const
     return m_visibleRoles;
 }
 
-
-void KItemListWidget::setColumnWidth(const QByteArray& role, qreal width)
+void KItemListWidget::setColumnWidth(const QByteArray &role, qreal width)
 {
     const qreal previousWidth = m_columnWidths.value(role);
     if (previousWidth != width) {
@@ -187,22 +184,56 @@ void KItemListWidget::setColumnWidth(const QByteArray& role, qreal width)
     }
 }
 
-qreal KItemListWidget::columnWidth(const QByteArray& role) const
+qreal KItemListWidget::columnWidth(const QByteArray &role) const
 {
     return m_columnWidths.value(role);
 }
 
-void KItemListWidget::setStyleOption(const KItemListStyleOption& option)
+void KItemListWidget::setSidePadding(qreal leftPaddingWidth, qreal rightPaddingWidth)
+{
+    bool changed = false;
+    if (m_leftPadding != leftPaddingWidth) {
+        m_leftPadding = leftPaddingWidth;
+        changed = true;
+    }
+
+    if (m_rightPadding != rightPaddingWidth) {
+        m_rightPadding = rightPaddingWidth;
+        changed = true;
+    }
+
+    if (!changed) {
+        return;
+    }
+
+    sidePaddingChanged(leftPaddingWidth, rightPaddingWidth);
+    update();
+}
+
+qreal KItemListWidget::leftPadding() const
 {
+    return m_leftPadding;
+}
+
+qreal KItemListWidget::rightPadding() const
+{
+    return m_rightPadding;
+}
+
+void KItemListWidget::setStyleOption(const KItemListStyleOption &option)
+{
+    if (m_styleOption == option) {
+        return;
+    }
+
     const KItemListStyleOption previous = m_styleOption;
     clearHoverCache();
     m_styleOption = option;
-
     styleOptionChanged(option, previous);
     update();
 }
 
-const KItemListStyleOption& KItemListWidget::styleOption() const
+const KItemListStyleOption &KItemListWidget::styleOption() const
 {
     return m_styleOption;
 }
@@ -246,27 +277,32 @@ void KItemListWidget::setHovered(bool hovered)
 
     m_hovered = hovered;
 
-    if (!m_hoverAnimation) {
-        m_hoverAnimation = new QPropertyAnimation(this, "hoverOpacity", this);
-        const int duration = style()->styleHint(QStyle::SH_Widget_Animate) ? 200 : 1;
-        m_hoverAnimation->setDuration(duration);
-        connect(m_hoverAnimation, &QPropertyAnimation::finished, this, &KItemListWidget::slotHoverAnimationFinished);
-    }
-    m_hoverAnimation->stop();
+    m_hoverSequenceIndex = 0;
 
     if (hovered) {
-        const qreal startValue = qMax(hoverOpacity(), qreal(0.1));
-        m_hoverAnimation->setStartValue(startValue);
-        m_hoverAnimation->setEndValue(1.0);
+        setHoverOpacity(1.0);
+
         if (m_enabledSelectionToggle && !(QApplication::mouseButtons() & Qt::LeftButton)) {
             initializeSelectionToggle();
         }
+
+        hoverSequenceStarted();
+
+        const KConfigGroup globalConfig(KSharedConfig::openConfig(), QStringLiteral("PreviewSettings"));
+        const int interval = globalConfig.readEntry("HoverSequenceInterval", 700);
+
+        m_hoverSequenceTimer.start(interval);
     } else {
-        m_hoverAnimation->setStartValue(hoverOpacity());
-        m_hoverAnimation->setEndValue(0.0);
-    }
+        setHoverOpacity(0.0);
 
-    m_hoverAnimation->start();
+        if (m_selectionToggle) {
+            m_selectionToggle->deleteLater();
+            m_selectionToggle = nullptr;
+        }
+
+        hoverSequenceEnded();
+        m_hoverSequenceTimer.stop();
+    }
 
     hoveredChanged(hovered);
     update();
@@ -277,7 +313,21 @@ bool KItemListWidget::isHovered() const
     return m_hovered;
 }
 
-void KItemListWidget::setHoverPosition(const QPointF& pos)
+void KItemListWidget::setExpansionAreaHovered(bool hovered)
+{
+    if (hovered == m_expansionAreaHovered) {
+        return;
+    }
+    m_expansionAreaHovered = hovered;
+    update();
+}
+
+bool KItemListWidget::expansionAreaHovered() const
+{
+    return m_expansionAreaHovered;
+}
+
+void KItemListWidget::setHoverPosition(const QPointF &pos)
 {
     if (m_selectionToggle) {
         m_selectionToggle->setHovered(selectionToggleRect().contains(pos));
@@ -302,6 +352,17 @@ void KItemListWidget::setEnabledSelectionToggle(bool enable)
 {
     if (m_enabledSelectionToggle != enable) {
         m_enabledSelectionToggle = enable;
+
+        // We want the change to take effect immediately.
+        if (m_enabledSelectionToggle) {
+            if (m_hovered) {
+                initializeSelectionToggle();
+            }
+        } else if (m_selectionToggle) {
+            m_selectionToggle->deleteLater();
+            m_selectionToggle = nullptr;
+        }
+
         update();
     }
 }
@@ -311,7 +372,7 @@ bool KItemListWidget::enabledSelectionToggle() const
     return m_enabledSelectionToggle;
 }
 
-void KItemListWidget::setSiblingsInformation(const QBitArray& siblings)
+void KItemListWidget::setSiblingsInformation(const QBitArray &siblings)
 {
     const QBitArray previous = m_siblingsInfo;
     m_siblingsInfo = siblings;
@@ -324,7 +385,7 @@ QBitArray KItemListWidget::siblingsInformation() const
     return m_siblingsInfo;
 }
 
-void KItemListWidget::setEditedRole(const QByteArray& role)
+void KItemListWidget::setEditedRole(const QByteArray &role)
 {
     if (m_editedRole != role) {
         const QByteArray previous = m_editedRole;
@@ -338,16 +399,27 @@ QByteArray KItemListWidget::editedRole() const
     return m_editedRole;
 }
 
-bool KItemListWidget::contains(const QPointF& point) const
+void KItemListWidget::setIconSize(int iconSize)
+{
+    if (m_iconSize != iconSize) {
+        const int previousIconSize = m_iconSize;
+        m_iconSize = iconSize;
+        iconSizeChanged(iconSize, previousIconSize);
+    }
+}
+
+int KItemListWidget::iconSize() const
+{
+    return m_iconSize;
+}
+
+bool KItemListWidget::contains(const QPointF &point) const
 {
     if (!QGraphicsWidget::contains(point)) {
         return false;
     }
 
-    return iconRect().contains(point) ||
-           textRect().contains(point) ||
-           expansionToggleRect().contains(point) ||
-           selectionToggleRect().contains(point);
+    return iconRect().contains(point) || textRect().contains(point) || expansionToggleRect().contains(point) || selectionToggleRect().contains(point);
 }
 
 QRectF KItemListWidget::textFocusRect() const
@@ -365,8 +437,7 @@ QRectF KItemListWidget::expansionToggleRect() const
     return QRectF();
 }
 
-QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
-                                          QWidget* widget)
+QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
     QPixmap pixmap(size().toSize() * widget->devicePixelRatio());
     pixmap.setDevicePixelRatio(widget->devicePixelRatio());
@@ -379,7 +450,6 @@ QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option
     const bool wasHovered = m_hovered;
 
     setAlternateBackground(false);
-    setSelected(false);
     setHovered(false);
 
     paint(&painter, option, widget);
@@ -391,91 +461,123 @@ QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option
     return pixmap;
 }
 
-void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
-                                  const QSet<QByteArray>& roles)
+void KItemListWidget::startActivateSoonAnimation(int timeUntilActivation)
+{
+    Q_UNUSED(timeUntilActivation)
+}
+
+void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant> &current, const QSet<QByteArray> &roles)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(roles);
+    Q_UNUSED(current)
+    Q_UNUSED(roles)
 }
 
-void KItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
-                                          const QList<QByteArray>& previous)
+void KItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::columnWidthChanged(const QByteArray& role,
-                                         qreal current,
-                                         qreal previous)
+void KItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 {
-    Q_UNUSED(role);
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(role)
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
-                                         const KItemListStyleOption& previous)
+void KItemListWidget::sidePaddingChanged(qreal leftPaddingWidth, qreal rightPaddingWidth)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(leftPaddingWidth)
+    Q_UNUSED(rightPaddingWidth)
+}
+
+void KItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
+{
+    Q_UNUSED(previous)
+
+    // set the initial value of m_iconSize if not set
+    if (m_iconSize == -1) {
+        m_iconSize = current.iconSize;
+    }
 }
 
 void KItemListWidget::currentChanged(bool current)
 {
-    Q_UNUSED(current);
+    Q_UNUSED(current)
 }
 
 void KItemListWidget::selectedChanged(bool selected)
 {
-    Q_UNUSED(selected);
+    Q_UNUSED(selected)
 }
 
 void KItemListWidget::hoveredChanged(bool hovered)
 {
-    Q_UNUSED(hovered);
+    Q_UNUSED(hovered)
 }
 
 void KItemListWidget::alternateBackgroundChanged(bool enabled)
 {
-    Q_UNUSED(enabled);
+    Q_UNUSED(enabled)
 }
 
-void KItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
+void KItemListWidget::siblingsInformationChanged(const QBitArray &current, const QBitArray &previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
+void KItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
+void KItemListWidget::iconSizeChanged(int current, int previous)
+{
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
+}
+
+void KItemListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
 {
     QGraphicsWidget::resizeEvent(event);
     clearHoverCache();
 
     if (m_selectionToggle) {
-        const QRectF& toggleRect = selectionToggleRect();
+        const QRectF &toggleRect = selectionToggleRect();
         m_selectionToggle->setPos(toggleRect.topLeft());
         m_selectionToggle->resize(toggleRect.size());
     }
 }
 
+void KItemListWidget::hoverSequenceStarted()
+{
+}
+
+void KItemListWidget::hoverSequenceIndexChanged(int sequenceIndex)
+{
+    Q_UNUSED(sequenceIndex);
+}
+
+void KItemListWidget::hoverSequenceEnded()
+{
+}
+
 qreal KItemListWidget::hoverOpacity() const
 {
     return m_hoverOpacity;
 }
 
-void KItemListWidget::slotHoverAnimationFinished()
+int KItemListWidget::hoverSequenceIndex() const
 {
-    if (!m_hovered && m_selectionToggle) {
-        m_selectionToggle->deleteLater();
-        m_selectionToggle = 0;
-    }
+    return m_hoverSequenceIndex;
+}
+
+void KItemListWidget::slotHoverSequenceTimerTimeout()
+{
+    m_hoverSequenceIndex++;
+    hoverSequenceIndexChanged(m_hoverSequenceIndex);
 }
 
 void KItemListWidget::initializeSelectionToggle()
@@ -502,7 +604,7 @@ void KItemListWidget::setHoverOpacity(qreal opacity)
 
     if (m_hoverOpacity <= 0.0) {
         delete m_hoverCache;
-        m_hoverCache = 0;
+        m_hoverCache = nullptr;
     }
 
     update();
@@ -511,17 +613,18 @@ void KItemListWidget::setHoverOpacity(qreal opacity)
 void KItemListWidget::clearHoverCache()
 {
     delete m_hoverCache;
-    m_hoverCache = 0;
+    m_hoverCache = nullptr;
 }
 
-void KItemListWidget::drawItemStyleOption(QPainter* painter, QWidget* widget, QStyle::State styleState)
+void KItemListWidget::drawItemStyleOption(QPainter *painter, QWidget *widget, QStyle::State styleState)
 {
     QStyleOptionViewItem viewItemOption;
-    viewItemOption.initFrom(widget);
+    initStyleOption(&viewItemOption);
     viewItemOption.state = styleState;
     viewItemOption.viewItemPosition = QStyleOptionViewItem::OnlyOne;
     viewItemOption.showDecorationSelected = true;
     viewItemOption.rect = selectionRect().toRect();
-    widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
+    style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
 }
 
+#include "moc_kitemlistwidget.cpp"