forked from qt-creator/qt-creator
Implement open pages classes to handle doc files like edit mode.
Based on the implementation done by ck, slightly modified and thus put under the private help internal namespace.
This commit is contained in:
kh1
188
src/plugins/help/openpageswidget.cpp
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188
src/plugins/help/openpageswidget.cpp
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/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "openpageswidget.h"
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#include "openpagesmodel.h"
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#include <QtGui/QApplication>
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#include <QtGui/QPainter>
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#include <QtGui/QHeaderView>
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#include <QtGui/QKeyEvent>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QMenu>
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#ifdef Q_WS_MAC
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#include <qmacstyle_mac.h>
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#endif
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using namespace Help::Internal;
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// -- OpenPagesDelegate
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OpenPagesDelegate::OpenPagesDelegate(QObject *parent)
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: QStyledItemDelegate(parent)
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{
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}
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void OpenPagesDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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{
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if (option.state & QStyle::State_MouseOver) {
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if ((QApplication::mouseButtons() & Qt::LeftButton) == 0)
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pressedIndex = QModelIndex();
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QBrush brush = option.palette.alternateBase();
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if (index == pressedIndex)
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brush = option.palette.dark();
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painter->fillRect(option.rect, brush);
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}
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QStyledItemDelegate::paint(painter, option, index);
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if (index.column() == 1 && option.state & QStyle::State_MouseOver) {
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QIcon icon((option.state & QStyle::State_Selected)
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? ":/core/images/closebutton.png" : ":/core/images/darkclosebutton.png");
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const QRect iconRect(option.rect.right() - option.rect.height(),
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option.rect.top(), option.rect.height(), option.rect.height());
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icon.paint(painter, iconRect, Qt::AlignRight | Qt::AlignVCenter);
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}
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}
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// -- OpenPagesWidget
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OpenPagesWidget::OpenPagesWidget(OpenPagesModel *model)
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{
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setModel(model);
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setIndentation(0);
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setItemDelegate((m_delegate = new OpenPagesDelegate(this)));
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setFrameStyle(QFrame::NoFrame);
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setTextElideMode(Qt::ElideMiddle);
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setAttribute(Qt::WA_MacShowFocusRect, false);
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viewport()->setAttribute(Qt::WA_Hover);
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setSelectionBehavior(QAbstractItemView::SelectRows);
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setSelectionMode(QAbstractItemView::SingleSelection);
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header()->hide();
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header()->setStretchLastSection(false);
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header()->setResizeMode(0, QHeaderView::Stretch);
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header()->setResizeMode(1, QHeaderView::Fixed);
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header()->resizeSection(1, 16);
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installEventFilter(this);
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setUniformRowHeights(true);
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setContextMenuPolicy(Qt::CustomContextMenu);
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connect(this, SIGNAL(clicked(QModelIndex)), this,
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SLOT(handleClicked(QModelIndex)));
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connect(this, SIGNAL(pressed(QModelIndex)), this,
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SLOT(handlePressed(QModelIndex)));
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connect(this, SIGNAL(customContextMenuRequested(QPoint)), this,
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SLOT(contextMenuRequested(QPoint)));
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}
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OpenPagesWidget::~OpenPagesWidget()
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{
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}
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// -- private slots
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void OpenPagesWidget::contextMenuRequested(QPoint pos)
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{
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const QModelIndex &index = indexAt(pos);
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if (!index.isValid())
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return;
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QMenu contextMenu;
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QAction *closeEditor = contextMenu.addAction(tr("Close %1").arg(index.data()
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.toString()));
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QAction *closeOtherEditors = contextMenu.addAction(tr("Close All Except %1")
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.arg(index.data().toString()));
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if (model()->rowCount() == 1) {
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closeEditor->setEnabled(false);
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closeOtherEditors->setEnabled(false);
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}
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QAction *action = contextMenu.exec(mapToGlobal(pos));
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if (action == closeEditor)
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emit closePage(index);
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else if (action == closeOtherEditors)
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emit closePagesExcept(index);
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}
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void OpenPagesWidget::handlePressed(const QModelIndex &index)
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{
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if (index.column() == 0)
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emit setCurrentPage(index);
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if (index.column() == 1)
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m_delegate->pressedIndex = index;
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}
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void OpenPagesWidget::handleClicked(const QModelIndex &index)
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{
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// implemented here to handle the funky close button and to work around a
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// bug in item views where the delegate wouldn't get the QStyle::State_MouseOver
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if (index.column() == 1) {
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if (model()->rowCount() > 1)
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emit closePage(index);
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QWidget *vp = viewport();
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const QPoint &cursorPos = QCursor::pos();
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QMouseEvent e(QEvent::MouseMove, vp->mapFromGlobal(cursorPos), cursorPos,
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Qt::NoButton, 0, 0);
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QCoreApplication::sendEvent(vp, &e);
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}
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}
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// -- private
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bool OpenPagesWidget::eventFilter(QObject *obj, QEvent *event)
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{
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if (obj == this && event->type() == QEvent::KeyPress) {
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if (currentIndex().isValid()) {
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QKeyEvent *ke = static_cast<QKeyEvent*>(event);
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const int key = ke->key();
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if ((key == Qt::Key_Return || key == Qt::Key_Enter || key == Qt::Key_Space)
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&& ke->modifiers() == 0) {
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emit setCurrentPage(currentIndex());
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} else if ((key == Qt::Key_Delete || key == Qt::Key_Backspace)
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&& ke->modifiers() == 0 && model()->rowCount() > 1) {
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emit closePage(currentIndex());
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}
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}
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}
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return QWidget::eventFilter(obj, event);
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}
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