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Diffstat (limited to 'examples/itemviews/frozencolumn/freezetablewidget.cpp')
| -rw-r--r-- | examples/itemviews/frozencolumn/freezetablewidget.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/examples/itemviews/frozencolumn/freezetablewidget.cpp b/examples/itemviews/frozencolumn/freezetablewidget.cpp new file mode 100644 index 0000000..7a9a8df --- /dev/null +++ b/examples/itemviews/frozencolumn/freezetablewidget.cpp @@ -0,0 +1,159 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "freezetablewidget.h" + +//! [constructor] +FreezeTableWidget::FreezeTableWidget(QAbstractItemModel * model) +{ + setModel(model); + frozenTableView = new QTableView(this); + + init(); + + //connect the headers and scrollbars of both tableviews together + connect(horizontalHeader(),SIGNAL(sectionResized ( int ,int,int )), this, + SLOT(updateSectionWidth(int, int, int))); + connect(verticalHeader(),SIGNAL(sectionResized ( int ,int,int )), this, + SLOT(updateSectionHeight(int, int, int))); + + connect(frozenTableView->verticalScrollBar(), SIGNAL(valueChanged(int)), + verticalScrollBar(), SLOT(setValue(int))); + connect(verticalScrollBar(), SIGNAL(valueChanged(int)), + frozenTableView->verticalScrollBar(), SLOT(setValue(int))); + + +} +//! [constructor] + +FreezeTableWidget::~FreezeTableWidget() +{ + delete frozenTableView; +} + +//! [init part1] +void FreezeTableWidget::init() +{ + frozenTableView->setModel(model()); + frozenTableView->setFocusPolicy(Qt::NoFocus); + frozenTableView->verticalHeader()->hide(); + frozenTableView->horizontalHeader()->setResizeMode(QHeaderView::Fixed); + + viewport()->stackUnder(frozenTableView); +//! [init part1] + +//! [init part2] + frozenTableView->setStyleSheet("QTableView { border: none;" + "background-color: #8EDE21;}"); //for demo purposes + frozenTableView->setSelectionModel(selectionModel()); + for(int col=1; col<model()->columnCount(); col++) + frozenTableView->setColumnHidden(col, true); + + frozenTableView->setColumnWidth(0, columnWidth(0) ); + + frozenTableView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + frozenTableView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + frozenTableView->show(); + + updateFrozenTableGeometry(); + + setHorizontalScrollMode(ScrollPerPixel); + setVerticalScrollMode(ScrollPerPixel); + frozenTableView->setVerticalScrollMode(ScrollPerPixel); +} +//! [init part2] + + +//! [sections] +void FreezeTableWidget::updateSectionWidth(int logicalIndex, int, int newSize) +{ + if(logicalIndex==0){ + frozenTableView->setColumnWidth(0,newSize); + updateFrozenTableGeometry(); + } +} + +void FreezeTableWidget::updateSectionHeight(int logicalIndex, int, int newSize) +{ + frozenTableView->setRowHeight(logicalIndex, newSize); +} +//! [sections] + + +//! [resize] +void FreezeTableWidget::resizeEvent(QResizeEvent * event) +{ + QTableView::resizeEvent(event); + updateFrozenTableGeometry(); + } +//! [resize] + + +//! [navigate] +QModelIndex FreezeTableWidget::moveCursor(CursorAction cursorAction, + Qt::KeyboardModifiers modifiers) +{ + QModelIndex current = QTableView::moveCursor(cursorAction, modifiers); + + if(cursorAction == MoveLeft && current.column()>0 + && visualRect(current).topLeft().x() < frozenTableView->columnWidth(0) ){ + + const int newValue = horizontalScrollBar()->value() + visualRect(current).topLeft().x() + - frozenTableView->columnWidth(0); + horizontalScrollBar()->setValue(newValue); + } + return current; +} +//! [navigate] + + +//! [geometry] +void FreezeTableWidget::updateFrozenTableGeometry() +{ + frozenTableView->setGeometry( verticalHeader()->width()+frameWidth(), + frameWidth(), columnWidth(0), + viewport()->height()+horizontalHeader()->height()); +} +//! [geometry] + + |