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/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip 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.
*
*/
#include "navigabletableview.h"
#include <QKeyEvent>
#include <QHeaderView>
#include <iostream>
NavigableTableView::NavigableTableView(QWidget *parent) :
QTableView(parent) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
#else
horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
#endif
}
void NavigableTableView::keyPressEvent(QKeyEvent *event) {
if(event->key() == Qt::Key_Home) {
scrollToTop();
}
else if(event->key() == Qt::Key_End) {
scrollToBottom();
}
else {
QTableView::keyPressEvent(event);
}
}
int NavigableTableView::sizeHintForRow(int row) const {
if (!model())
return -1;
ensurePolished();
int left = qMax(0, horizontalHeader()->visualIndexAt(0));
int right = horizontalHeader()->visualIndexAt(viewport()->width());
if (right < 0) right = model()->columnCount();
int hint = 0;
for (int column = left; column <= right; ++column) {
if (horizontalHeader()->isSectionHidden(column))
continue;
QModelIndex index = model()->index(row, column);
hint = qMax(hint, itemDelegate(index)->sizeHint(viewOptions(), index).height());
}
return hint;
}
int NavigableTableView::sizeHintForColumn(int col) const {
if (!model())
return -1;
ensurePolished();
int top = qMax(0, verticalHeader()->visualIndexAt(0));
int bottom = verticalHeader()->visualIndexAt(viewport()->height());
int hint = 0;
if (bottom == -1 || (bottom+10) >= model()->rowCount()) {
bottom = model()->rowCount() - 1;
}
else {
bottom += 10;
}
for (int row = top; row <= bottom; ++row) {
QModelIndex index = model()->index(row, col);
hint = qMax(hint, itemDelegate(index)->sizeHint(viewOptions(), index).width());
}
return hint;
}
void NavigableTableView::paintEvent(QPaintEvent * event) {
resizeTableRows();
QTableView::paintEvent(event);
}
void NavigableTableView::resizeTableRows() {
if (!model())
return;
int top = qMax(0, verticalHeader()->visualIndexAt(0));
int bottom = verticalHeader()->visualIndexAt(viewport()->height());
if (bottom == -1 || (bottom+10) >= model()->rowCount()) {
bottom = model()->rowCount() - 1;
}
else {
bottom += 10;
}
int left = qMax(0, horizontalHeader()->visualIndexAt(0));
int right = horizontalHeader()->visualIndexAt(viewport()->width());
if (right < 0) right = model()->columnCount();
for (int i = top ; i <= bottom ; ++i)
resizeRowToContents(i);
for (int i = left ; i <= right ; ++i)
resizeColumnToContents(i);
}
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