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Diffstat (limited to 'examples/itemviews/frozencolumn/freezetablewidget.cpp')
| -rw-r--r-- | examples/itemviews/frozencolumn/freezetablewidget.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/examples/itemviews/frozencolumn/freezetablewidget.cpp b/examples/itemviews/frozencolumn/freezetablewidget.cpp new file mode 100644 index 0000000000..357d387321 --- /dev/null +++ b/examples/itemviews/frozencolumn/freezetablewidget.cpp @@ -0,0 +1,165 @@ +/**************************************************************************** +** +** 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 examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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;" + "selection-background-color: #999}"); //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] + +void FreezeTableWidget::scrollTo (const QModelIndex & index, ScrollHint hint){ + if(index.column()>0) + QTableView::scrollTo(index, hint); +} + + + +//! [geometry] +void FreezeTableWidget::updateFrozenTableGeometry() +{ + frozenTableView->setGeometry( verticalHeader()->width()+frameWidth(), + frameWidth(), columnWidth(0), + viewport()->height()+horizontalHeader()->height()); +} +//! [geometry] + + |