1 files changed, 237 insertions, 0 deletions
diff --git a/src/assistant/tools/assistant/openpageswidget.cpp b/src/assistant/tools/assistant/openpageswidget.cpp
new file mode 100644
index 000000000..db037125b
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+++ b/src/assistant/tools/assistant/openpageswidget.cpp
@@ -0,0 +1,237 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Assistant module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "openpageswidget.h"
+
+#include "centralwidget.h"
+#include "openpagesmodel.h"
+#include "tracer.h"
+
+#include <QtGui/QApplication>
+#include <QtGui/QHeaderView>
+#include <QtGui/QKeyEvent>
+#include <QtGui/QMouseEvent>
+#include <QtGui/QMenu>
+#include <QtGui/QPainter>
+
+#ifdef Q_WS_MAC
+#include <qmacstyle_mac.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+OpenPagesDelegate::OpenPagesDelegate(QObject *parent)
+    : QStyledItemDelegate(parent)
+{
+    TRACE_OBJ
+}
+
+void OpenPagesDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
+           const QModelIndex &index) const
+{
+    TRACE_OBJ
+    if (option.state & QStyle::State_MouseOver) {
+        if ((QApplication::mouseButtons() & Qt::LeftButton) == 0)
+            pressedIndex = QModelIndex();
+        QBrush brush = option.palette.alternateBase();
+        if (index == pressedIndex)
+            brush = option.palette.dark();
+        painter->fillRect(option.rect, brush);
+    }
+
+    QStyledItemDelegate::paint(painter, option, index);
+
+    if (index.column() == 1 && index.model()->rowCount() > 1
+        && option.state & QStyle::State_MouseOver) {
+        QIcon icon((option.state & QStyle::State_Selected)
+            ? ":/trolltech/assistant/images/closebutton.png"
+            : ":/trolltech/assistant/images/darkclosebutton.png");
+
+        const QRect iconRect(option.rect.right() - option.rect.height(),
+            option.rect.top(), option.rect.height(), option.rect.height());
+        icon.paint(painter, iconRect, Qt::AlignRight | Qt::AlignVCenter);
+    }
+}
+
+// -- OpenPagesWidget
+
+OpenPagesWidget::OpenPagesWidget(OpenPagesModel *model)
+    : m_allowContextMenu(true)
+{
+    TRACE_OBJ
+    setModel(model);
+    setIndentation(0);
+    setItemDelegate((m_delegate = new OpenPagesDelegate(this)));
+
+    setTextElideMode(Qt::ElideMiddle);
+    setAttribute(Qt::WA_MacShowFocusRect, false);
+
+    viewport()->setAttribute(Qt::WA_Hover);
+    setSelectionBehavior(QAbstractItemView::SelectRows);
+    setSelectionMode(QAbstractItemView::SingleSelection);
+
+    header()->hide();
+    header()->setStretchLastSection(false);
+    header()->setResizeMode(0, QHeaderView::Stretch);
+    header()->setResizeMode(1, QHeaderView::Fixed);
+    header()->resizeSection(1, 18);
+
+    installEventFilter(this);
+    setUniformRowHeights(true);
+    setContextMenuPolicy(Qt::CustomContextMenu);
+
+    connect(this, SIGNAL(clicked(QModelIndex)), this,
+        SLOT(handleClicked(QModelIndex)));
+    connect(this, SIGNAL(pressed(QModelIndex)), this,
+        SLOT(handlePressed(QModelIndex)));
+    connect(this, SIGNAL(customContextMenuRequested(QPoint)), this,
+        SLOT(contextMenuRequested(QPoint)));
+}
+
+OpenPagesWidget::~OpenPagesWidget()
+{
+    TRACE_OBJ
+}
+
+void OpenPagesWidget::selectCurrentPage()
+{
+    TRACE_OBJ
+    const QModelIndex &current =
+        model()->index(CentralWidget::instance()->currentIndex(), 0);
+
+    QItemSelectionModel * const selModel = selectionModel();
+    selModel->select(current,
+        QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
+    selModel->clearSelection();
+
+    setCurrentIndex(current);
+    scrollTo(currentIndex());
+}
+
+void OpenPagesWidget::allowContextMenu(bool ok)
+{
+    TRACE_OBJ
+    m_allowContextMenu = ok;
+}
+
+void OpenPagesWidget::contextMenuRequested(QPoint pos)
+{
+    TRACE_OBJ
+    QModelIndex index = indexAt(pos);
+    if (!index.isValid() || !m_allowContextMenu)
+        return;
+
+    if (index.column() == 1)
+        index = index.sibling(index.row(), 0);
+    QMenu contextMenu;
+    QAction *closeEditor = contextMenu.addAction(tr("Close %1").arg(index.data()
+        .toString()));
+    QAction *closeOtherEditors = contextMenu.addAction(tr("Close All Except %1")
+        .arg(index.data().toString()));
+
+    if (model()->rowCount() == 1) {
+        closeEditor->setEnabled(false);
+        closeOtherEditors->setEnabled(false);
+    }
+
+    QAction *action = contextMenu.exec(mapToGlobal(pos));
+    if (action == closeEditor)
+        emit closePage(index);
+    else if (action == closeOtherEditors)
+        emit closePagesExcept(index);
+}
+
+void OpenPagesWidget::handlePressed(const QModelIndex &index)
+{
+    TRACE_OBJ
+    if (index.column() == 0)
+        emit setCurrentPage(index);
+
+    if (index.column() == 1)
+        m_delegate->pressedIndex = index;
+}
+
+void OpenPagesWidget::handleClicked(const QModelIndex &index)
+{
+    TRACE_OBJ
+    // implemented here to handle the funky close button and to work around a
+    // bug in item views where the delegate wouldn't get the QStyle::State_MouseOver
+    if (index.column() == 1) {
+        if (model()->rowCount() > 1)
+            emit closePage(index);
+
+        QWidget *vp = viewport();
+        const QPoint &cursorPos = QCursor::pos();
+        QMouseEvent e(QEvent::MouseMove, vp->mapFromGlobal(cursorPos), cursorPos,
+            Qt::NoButton, 0, 0);
+        QCoreApplication::sendEvent(vp, &e);
+    }
+}
+
+bool OpenPagesWidget::eventFilter(QObject *obj, QEvent *event)
+{
+    TRACE_OBJ
+    if (obj != this)
+        return QWidget::eventFilter(obj, event);
+
+    if (event->type() == QEvent::KeyPress) {
+        QKeyEvent *ke = static_cast<QKeyEvent*>(event);
+        if (currentIndex().isValid() && ke->modifiers() == 0) {
+            const int key = ke->key();
+            if (key == Qt::Key_Return || key == Qt::Key_Enter
+                || key == Qt::Key_Space) {
+                emit setCurrentPage(currentIndex());
+            } else if ((key == Qt::Key_Delete || key == Qt::Key_Backspace)
+                && model()->rowCount() > 1) {
+                emit closePage(currentIndex());
+            }
+        }
+    } else if (event->type() == QEvent::KeyRelease) {
+        QKeyEvent *ke = static_cast<QKeyEvent*>(event);
+        if (ke->modifiers() == 0
+            && (ke->key() == Qt::Key_Up || ke->key() == Qt::Key_Down)) {
+                emit setCurrentPage(currentIndex());
+        }
+    }
+    return QWidget::eventFilter(obj, event);
+}
+
+QT_END_NAMESPACE