Better support for RTL

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

diff --git a/src/kitemviews/kitemlistheader.cpp b/src/kitemviews/kitemlistheader.cpp
index 3187d2c362c13b7053d36f39572b6c6bc0186e8f..bb3153794e2f6a7c18fbea1c76ef26b806018000 100644 (file)
--- a/src/kitemviews/kitemlistheader.cpp
+++ b/src/kitemviews/kitemlistheader.cpp
@@ -1,349 +1,92 @@
-/***************************************************************************
- *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   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: 2012 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */

 
 

-#include "kitemlistheader_p.h"
-
-#include <KAction>
-#include <KMenu>
-#include "kitemmodelbase.h"
-
-#include <QApplication>
-#include <QGraphicsSceneHoverEvent>
-#include <QPainter>
-#include <QStyleOptionHeader>
-
-#include <KDebug>
-
-KItemListHeader::KItemListHeader(QGraphicsWidget* parent) :
-    QGraphicsWidget(parent),
-    m_model(0),
-    m_visibleRoles(),
-    m_visibleRolesWidths(),
-    m_hoveredRoleIndex(-1),
-    m_pressedRoleIndex(-1),
-    m_roleOperation(NoRoleOperation),
-    m_pressedMousePos()
-{
-    setAcceptHoverEvents(true);
-
-    QStyleOptionHeader option;
-    const QSize headerSize = style()->sizeFromContents(QStyle::CT_HeaderSection, &option, QSize());
-    resize(0, headerSize.height());
-}
+#include "kitemlistheader.h"
+#include "kitemlistview.h"
+#include "private/kitemlistheaderwidget.h"

 
 KItemListHeader::~KItemListHeader()
 {
 }
 
 
 KItemListHeader::~KItemListHeader()
 {
 }
 

-void KItemListHeader::setModel(KItemModelBase* model)
-{
-    if (m_model == model) {
-        return;
-    }
-
-    if (m_model) {
-        disconnect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                   this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
-        disconnect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                   this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-    }
-
-    m_model = model;
-
-    if (m_model) {
-        connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                this, SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
-        connect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                this, SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-    }
-}
-
-KItemModelBase* KItemListHeader::model() const
-{
-    return m_model;
-}
-
-void KItemListHeader::setVisibleRoles(const QList<QByteArray>& roles)
-{
-    m_visibleRoles = roles;
-    update();
-}
-
-QList<QByteArray> KItemListHeader::visibleRoles() const
-{
-    return m_visibleRoles;
-}
-
-void KItemListHeader::setVisibleRolesWidths(const QHash<QByteArray, qreal> rolesWidths)
+void KItemListHeader::setAutomaticColumnResizing(bool automatic)

 {
 {

-    m_visibleRolesWidths = rolesWidths;
-
-    // Assure that no width is smaller than the minimum allowed width
-    const qreal minWidth = minimumRoleWidth();
-    QMutableHashIterator<QByteArray, qreal> it(m_visibleRolesWidths);
-    while (it.hasNext()) {
-        it.next();
-        if (it.value() < minWidth) {
-            m_visibleRolesWidths.insert(it.key(), minWidth);
+    if (m_headerWidget->automaticColumnResizing() != automatic) {
+        m_headerWidget->setAutomaticColumnResizing(automatic);
+        if (automatic) {
+            m_view->applyAutomaticColumnWidths();
+            m_view->doLayout(KItemListView::NoAnimation);

         }
     }
         }
     }

-
-    update();

 }
 
 }
 

-QHash<QByteArray, qreal> KItemListHeader::visibleRolesWidths() const
+bool KItemListHeader::automaticColumnResizing() const

 {
 {

-    return m_visibleRolesWidths;
+    return m_headerWidget->automaticColumnResizing();

 }
 
 }
 

-void KItemListHeader::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+void KItemListHeader::setColumnWidth(const QByteArray &role, qreal width)

 {
 {

-    Q_UNUSED(option);
-    Q_UNUSED(widget);
-
-    if (!m_model) {
-        return;
+    if (!m_headerWidget->automaticColumnResizing()) {
+        m_headerWidget->setColumnWidth(role, width);
+        m_view->applyColumnWidthsFromHeader();
+        m_view->doLayout(KItemListView::NoAnimation);

     }
     }

-
-    // Draw roles
-    painter->setFont(font());
-    painter->setPen(palette().text().color());
-
-    qreal x = 0;
-    int orderIndex = 0;
-    foreach (const QByteArray& role, m_visibleRoles) {
-        const qreal roleWidth = m_visibleRolesWidths.value(role);
-        const QRectF rect(x, 0, roleWidth, size().height());
-        paintRole(painter, role, rect, orderIndex);
-        x += roleWidth;
-        ++orderIndex;
-    }
-
-    // Draw background without roles
-    QStyleOption opt;
-    opt.init(widget);
-    opt.rect = QRect(x, 0, size().width() - x, size().height());
-    opt.state |= QStyle::State_Horizontal;
-    style()->drawControl(QStyle::CE_HeaderEmptyArea, &opt, painter);

 }
 
 }
 

-void KItemListHeader::mousePressEvent(QGraphicsSceneMouseEvent* event)
+qreal KItemListHeader::columnWidth(const QByteArray &role) const

 {
 {

-    if (event->button() & Qt::LeftButton) {
-        updatePressedRoleIndex(event->pos());
-        m_pressedMousePos = event->pos();
-        m_roleOperation = isAboveRoleGrip(m_pressedMousePos, m_pressedRoleIndex) ?
-                          ResizeRoleOperation : NoRoleOperation;
-        event->accept();
-    } else {
-        event->ignore();
-    }
+    return m_headerWidget->columnWidth(role);

 }
 
 }
 

-void KItemListHeader::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
+void KItemListHeader::setColumnWidths(const QHash<QByteArray, qreal> &columnWidths)

 {
 {

-    QGraphicsWidget::mouseReleaseEvent(event);
-
-    if (m_pressedRoleIndex == -1) {
-        return;
-    }
-
-    if (m_roleOperation == NoRoleOperation) {
-        // Only a click has been done and no moving or resizing has been started
-        const QByteArray sortRole = m_model->sortRole();
-        const int sortRoleIndex = m_visibleRoles.indexOf(sortRole);
-        if (m_pressedRoleIndex == sortRoleIndex) {
-            // Toggle the sort order
-            const Qt::SortOrder toggled = (m_model->sortOrder() == Qt::AscendingOrder) ?
-                                          Qt::DescendingOrder : Qt::AscendingOrder;
-            m_model->setSortOrder(toggled);
-        } else {
-            // Change the sort role
-            const QByteArray sortRole = m_visibleRoles.at(m_pressedRoleIndex);
-            m_model->setSortRole(sortRole);
+    if (!m_headerWidget->automaticColumnResizing()) {
+        const auto visibleRoles = m_view->visibleRoles();
+        for (const QByteArray &role : visibleRoles) {
+            const qreal width = columnWidths.value(role);
+            m_headerWidget->setColumnWidth(role, width);

         }
         }

-    }
-
-    m_pressedRoleIndex = -1;
-    m_roleOperation = NoRoleOperation;
-    update();
-}
-
-void KItemListHeader::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
-{
-    QGraphicsWidget::mouseMoveEvent(event);
-
-    if (m_roleOperation == ResizeRoleOperation) {
-        const QByteArray pressedRole = m_visibleRoles.at(m_pressedRoleIndex);

 
 

-        qreal previousWidth = m_visibleRolesWidths.value(pressedRole);
-        qreal currentWidth = previousWidth;
-        currentWidth += event->pos().x() - event->lastPos().x();
-        currentWidth = qMax(minimumRoleWidth(), currentWidth);
-
-        m_visibleRolesWidths.insert(pressedRole, currentWidth);
-        update();
-
-        emit visibleRoleWidthChanged(pressedRole, currentWidth, previousWidth);
-    } else if ((event->pos() - m_pressedMousePos).manhattanLength() >= QApplication::startDragDistance()) {
-        kDebug() << "Moving of role not supported yet";
-        m_roleOperation = MoveRoleOperation;
-    }
-}
-
-void KItemListHeader::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
-{
-    QGraphicsWidget::hoverEnterEvent(event);
-    updateHoveredRoleIndex(event->pos());
-}
-
-void KItemListHeader::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
-{
-    QGraphicsWidget::hoverLeaveEvent(event);
-    if (m_hoveredRoleIndex != -1) {
-        m_hoveredRoleIndex = -1;
-        update();
-    }
-}
-
-void KItemListHeader::hoverMoveEvent(QGraphicsSceneHoverEvent* event)
-{
-    QGraphicsWidget::hoverMoveEvent(event);
-
-    const QPointF& pos = event->pos();
-    updateHoveredRoleIndex(pos);
-    if (m_hoveredRoleIndex >= 0 && isAboveRoleGrip(pos, m_hoveredRoleIndex)) {
-        setCursor(Qt::SplitHCursor);
-    } else {
-        unsetCursor();
-    }
-}
-
-void KItemListHeader::slotSortRoleChanged(const QByteArray& current, const QByteArray& previous)
-{
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
-    update();
-}
-
-void KItemListHeader::slotSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous)
-{
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
-    update();
-}
-
-void KItemListHeader::paintRole(QPainter* painter,
-                                const QByteArray& role,
-                                const QRectF& rect,
-                                int orderIndex)
-{
-    // The following code is based on the code from QHeaderView::paintSection().
-    // Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-    QStyleOptionHeader option;
-    option.section = orderIndex;
-    option.state = QStyle::State_None | QStyle::State_Raised | QStyle::State_Horizontal;
-    if (isEnabled()) {
-        option.state |= QStyle::State_Enabled;
-    }
-    if (window() && window()->isActiveWindow()) {
-        option.state |= QStyle::State_Active;
-    }
-    if (m_hoveredRoleIndex == orderIndex) {
-        option.state |= QStyle::State_MouseOver;
-    }
-    if (m_pressedRoleIndex == orderIndex) {
-        option.state |= QStyle::State_Sunken;
+        m_view->applyColumnWidthsFromHeader();
+        m_view->doLayout(KItemListView::NoAnimation);

     }
     }

-    if (m_model->sortRole() == role) {
-        option.sortIndicator = (m_model->sortOrder() == Qt::AscendingOrder) ?
-                                QStyleOptionHeader::SortDown : QStyleOptionHeader::SortUp;
-    }
-    option.rect = rect.toRect();
-
-    if (m_visibleRoles.count() == 1) {
-        option.position = QStyleOptionHeader::OnlyOneSection;
-    } else if (orderIndex == 0) {
-        option.position = QStyleOptionHeader::Beginning;
-    } else if (orderIndex == m_visibleRoles.count() - 1) {
-        option.position = QStyleOptionHeader::End;
-    } else {
-        option.position = QStyleOptionHeader::Middle;
-    }
-
-    option.orientation = Qt::Horizontal;
-    option.selectedPosition = QStyleOptionHeader::NotAdjacent;
-    option.text = m_model->roleDescription(role);
-
-    style()->drawControl(QStyle::CE_Header, &option, painter);

 }
 
 }
 

-void KItemListHeader::updatePressedRoleIndex(const QPointF& pos)
+qreal KItemListHeader::preferredColumnWidth(const QByteArray &role) const

 {
 {

-    const int pressedIndex = roleIndexAt(pos);
-    if (m_pressedRoleIndex != pressedIndex) {
-        m_pressedRoleIndex = pressedIndex;
-        update();
-    }
-}
-
-void KItemListHeader::updateHoveredRoleIndex(const QPointF& pos)
-{
-    const int hoverIndex = roleIndexAt(pos);
-    if (m_hoveredRoleIndex != hoverIndex) {
-        m_hoveredRoleIndex = hoverIndex;
-        update();
-    }
+    return m_headerWidget->preferredColumnWidth(role);

 }
 
 }
 

-int KItemListHeader::roleIndexAt(const QPointF& pos) const
+void KItemListHeader::setSidePadding(qreal width)

 {
 {

-    int index = -1;
-
-    qreal x = 0;
-    foreach (const QByteArray& role, m_visibleRoles) {
-        ++index;
-        x += m_visibleRolesWidths.value(role);
-        if (pos.x() <= x) {
-            break;
+    if (m_headerWidget->sidePadding() != width) {
+        m_headerWidget->setSidePadding(width);
+        if (m_headerWidget->automaticColumnResizing()) {
+            m_view->applyAutomaticColumnWidths();

         }
         }

+        m_view->doLayout(KItemListView::NoAnimation);

     }
     }

-
-    return index;

 }
 
 }
 

-bool KItemListHeader::isAboveRoleGrip(const QPointF& pos, int roleIndex) const
+qreal KItemListHeader::sidePadding() const

 {
 {

-    qreal x = 0;
-    for (int i = 0; i <= roleIndex; ++i) {
-        const QByteArray role = m_visibleRoles.at(i);
-        x += m_visibleRolesWidths.value(role);
-    }
-
-    const int grip = style()->pixelMetric(QStyle::PM_HeaderGripMargin);
-    return pos.x() >= (x - grip) && pos.x() <= x;
+    return m_headerWidget->sidePadding();

 }
 
 }
 

-qreal KItemListHeader::minimumRoleWidth() const
+KItemListHeader::KItemListHeader(KItemListView *listView)
+    : QObject(listView)
+    , m_view(listView)

 {
 {

-    QFontMetricsF fontMetrics(font());
-    return fontMetrics.height() * 4;
+    m_headerWidget = m_view->m_headerWidget;
+    Q_ASSERT(m_headerWidget);
+
+    connect(m_headerWidget, &KItemListHeaderWidget::columnWidthChanged, this, &KItemListHeader::columnWidthChanged);
+    connect(m_headerWidget, &KItemListHeaderWidget::columnWidthChangeFinished, this, &KItemListHeader::columnWidthChangeFinished);
+    connect(m_headerWidget, &KItemListHeaderWidget::sidePaddingChanged, this, &KItemListHeader::sidePaddingChanged);

 }
 
 }
 

-#include "kitemlistheader_p.moc"
+#include "moc_kitemlistheader.cpp"