X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/b8a12851b8337dd8524b7edf73bcbb832e339e13..ed2d352c42a6d517d4f29b3582c0e00aa34fe647:/src/kitemviews/kitemlistwidget.cpp

diff --git a/src/kitemviews/kitemlistwidget.cpp b/src/kitemviews/kitemlistwidget.cpp
index b703fbfe2..c8b3d2c3c 100644
--- a/src/kitemviews/kitemlistwidget.cpp
+++ b/src/kitemviews/kitemlistwidget.cpp
@@ -1,59 +1,59 @@
-/***************************************************************************
- *   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 "kitemlistselectiontoggle_p.h"
 #include "kitemlistview.h"
-#include "kitemmodelbase.h"
+#include "private/kitemlistselectiontoggle.h"
 
-#include <KDebug>
+#include <KConfigGroup>
+#include <KSharedConfig>
 
-#include <KGlobalSettings>
 #include <QApplication>
 #include <QPainter>
 #include <QPropertyAnimation>
 #include <QStyleOption>
 
-KItemListWidget::KItemListWidget(QGraphicsItem* parent) :
-    QGraphicsWidget(parent, 0),
-    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)
+KItemListWidgetInformant::KItemListWidgetInformant()
 {
 }
 
+KItemListWidgetInformant::~KItemListWidgetInformant()
+{
+}
+
+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_sidePadding(0)
+    , m_styleOption()
+    , m_siblingsInfo()
+    , m_hoverOpacity(0)
+    , m_hoverCache(nullptr)
+    , m_hoverAnimation(nullptr)
+    , m_hoverSequenceIndex(0)
+    , m_selectionToggle(nullptr)
+    , m_editedRole()
+    , m_iconSize(-1)
+{
+    connect(&m_hoverSequenceTimer, &QTimer::timeout, this, &KItemListWidget::slotHoverSequenceTimerTimeout);
+}
+
 KItemListWidget::~KItemListWidget()
 {
     clearHoverCache();
@@ -63,7 +63,7 @@ void KItemListWidget::setIndex(int index)
 {
     if (m_index != index) {
         delete m_selectionToggle;
-        m_selectionToggle = 0;
+        m_selectionToggle = nullptr;
 
         if (m_hoverAnimation) {
             m_hoverAnimation->stop();
@@ -80,15 +80,14 @@ 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);
@@ -101,9 +100,9 @@ QHash<QByteArray, QVariant> KItemListWidget::data() const
     return m_data;
 }
 
-void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+void KItemListWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
-    Q_UNUSED(option);
+    Q_UNUSED(option)
 
     if (m_alternateBackground) {
         const QColor backgroundColor = m_styleOption.palette.color(QPalette::AlternateBase);
@@ -111,17 +110,14 @@ void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
         painter->fillRect(backgroundRect, backgroundColor);
     }
 
-    if (m_selected) {
+    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);
+        drawItemStyleOption(painter, widget, activeState | QStyle::State_Enabled | QStyle::State_Selected | QStyle::State_Item);
     }
 
-    if (isCurrent()) {
+    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) {
@@ -140,10 +136,7 @@ void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
 
             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);
+            drawItemStyleOption(&pixmapPainter, widget, activeState | QStyle::State_Enabled | QStyle::State_MouseOver | QStyle::State_Item);
         }
 
         const qreal opacity = painter->opacity();
@@ -153,7 +146,7 @@ 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;
@@ -167,33 +160,49 @@ QList<QByteArray> KItemListWidget::visibleRoles() const
     return m_visibleRoles;
 }
 
-
-void KItemListWidget::setColumnWidth(const QByteArray& role, qreal width)
+void KItemListWidget::setColumnWidth(const QByteArray &role, qreal width)
 {
-    if (m_columnWidths.value(role) != width) {
-        const qreal previousWidth = width;
+    const qreal previousWidth = m_columnWidths.value(role);
+    if (previousWidth != width) {
         m_columnWidths.insert(role, width);
         columnWidthChanged(role, width, previousWidth);
         update();
     }
 }
 
-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)
+qreal KItemListWidget::sidePadding() const
+{
+    return m_sidePadding;
+}
+
+void KItemListWidget::setSidePadding(qreal width)
+{
+    if (m_sidePadding != width) {
+        m_sidePadding = width;
+        sidePaddingChanged(width);
+        update();
+    }
+}
+
+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;
 }
@@ -239,12 +248,14 @@ void KItemListWidget::setHovered(bool hovered)
 
     if (!m_hoverAnimation) {
         m_hoverAnimation = new QPropertyAnimation(this, "hoverOpacity", this);
-        const int duration = (KGlobalSettings::graphicEffectsLevel() == KGlobalSettings::NoEffects) ? 1 : 200;
+        const int duration = style()->styleHint(QStyle::SH_Widget_Animate) ? 200 : 1;
         m_hoverAnimation->setDuration(duration);
-        connect(m_hoverAnimation, SIGNAL(finished()), this, SLOT(slotHoverAnimationFinished()));
+        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);
@@ -252,9 +263,19 @@ void KItemListWidget::setHovered(bool hovered)
         if (m_enabledSelectionToggle && !(QApplication::mouseButtons() & Qt::LeftButton)) {
             initializeSelectionToggle();
         }
+
+        hoverSequenceStarted();
+
+        const KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
+        const int interval = globalConfig.readEntry("HoverSequenceInterval", 700);
+
+        m_hoverSequenceTimer.start(interval);
     } else {
         m_hoverAnimation->setStartValue(hoverOpacity());
         m_hoverAnimation->setEndValue(0.0);
+
+        hoverSequenceEnded();
+        m_hoverSequenceTimer.stop();
     }
 
     m_hoverAnimation->start();
@@ -268,6 +289,27 @@ bool KItemListWidget::isHovered() const
     return m_hovered;
 }
 
+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));
+    }
+}
+
 void KItemListWidget::setAlternateBackground(bool enable)
 {
     if (m_alternateBackground != enable) {
@@ -286,6 +328,17 @@ 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();
     }
 }
@@ -295,7 +348,7 @@ 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;
@@ -308,16 +361,41 @@ QBitArray KItemListWidget::siblingsInformation() const
     return m_siblingsInfo;
 }
 
-bool KItemListWidget::contains(const QPointF& point) const
+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;
+}
+
+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
@@ -335,66 +413,125 @@ QRectF KItemListWidget::expansionToggleRect() const
     return QRectF();
 }
 
-void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
-                                  const QSet<QByteArray>& roles)
+QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    QPixmap pixmap(size().toSize() * widget->devicePixelRatio());
+    pixmap.setDevicePixelRatio(widget->devicePixelRatio());
+    pixmap.fill(Qt::transparent);
+
+    QPainter painter(&pixmap);
+
+    const bool oldAlternateBackground = m_alternateBackground;
+    const bool wasSelected = m_selected;
+    const bool wasHovered = m_hovered;
+
+    setAlternateBackground(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)
+}
+
+void KItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(roles);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
-                                          const QList<QByteArray>& previous)
+void KItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(role)
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
-void KItemListWidget::columnWidthChanged(const QByteArray& role,
-                                         qreal current,
-                                         qreal previous)
+void KItemListWidget::sidePaddingChanged(qreal width)
 {
-    Q_UNUSED(role);
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(width)
 }
 
-void KItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
-                                         const KItemListStyleOption& previous)
+void KItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(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::resizeEvent(QGraphicsSceneResizeEvent* event)
+void KItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
+{
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
+}
+
+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();
+        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
@@ -402,14 +539,25 @@ qreal KItemListWidget::hoverOpacity() const
     return m_hoverOpacity;
 }
 
+int KItemListWidget::hoverSequenceIndex() const
+{
+    return m_hoverSequenceIndex;
+}
+
 void KItemListWidget::slotHoverAnimationFinished()
 {
-    if (!m_hovered) {
-        delete m_selectionToggle;
-        m_selectionToggle = 0;
+    if (!m_hovered && m_selectionToggle) {
+        m_selectionToggle->deleteLater();
+        m_selectionToggle = nullptr;
     }
 }
 
+void KItemListWidget::slotHoverSequenceTimerTimeout()
+{
+    m_hoverSequenceIndex++;
+    hoverSequenceIndexChanged(m_hoverSequenceIndex);
+}
+
 void KItemListWidget::initializeSelectionToggle()
 {
     Q_ASSERT(m_enabledSelectionToggle);
@@ -434,7 +582,7 @@ void KItemListWidget::setHoverOpacity(qreal opacity)
 
     if (m_hoverOpacity <= 0.0) {
         delete m_hoverCache;
-        m_hoverCache = 0;
+        m_hoverCache = nullptr;
     }
 
     update();
@@ -443,18 +591,18 @@ 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)
 {
-    QStyleOptionViewItemV4 viewItemOption;
-    viewItemOption.initFrom(widget);
+    QStyleOptionViewItem viewItemOption;
+    initStyleOption(&viewItemOption);
     viewItemOption.state = styleState;
-    viewItemOption.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
+    viewItemOption.viewItemPosition = QStyleOptionViewItem::OnlyOne;
     viewItemOption.showDecorationSelected = true;
-    viewItemOption.rect = textRect().toRect();
-    widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
+    viewItemOption.rect = selectionRect().toRect();
+    style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
 }
 
-#include "kitemlistwidget.moc"
+#include "moc_kitemlistwidget.cpp"