andre@24: /* Copyright (C) 2014 by Intevation GmbH
andre@24:  *
andre@24:  * This file is Free Software under the GNU GPL (v>=2)
andre@24:  * and comes with ABSOLUTELY NO WARRANTY!
andre@24:  * See LICENSE.txt for details.
andre@24:  */
andre@4: #include "filterwidget.h"
andre@4: 
andre@4: #include <QComboBox>
andre@4: #include <QHBoxLayout>
andre@4: #include <QGroupBox>
andre@4: #include <QSortFilterProxyModel>
andre@4: #include <QAbstractItemModel>
andre@4: #include <QLineEdit>
andre@4: #include <QDebug>
andre@4: 
andre@4: FilterWidget::FilterWidget(QSortFilterProxyModel *model, QWidget *parent, Qt::WindowFlags f) :
andre@4:     QWidget(parent, f),
andre@4:     mModel(model) {
andre@4:     Q_ASSERT(model);
andre@4:     setupGUI();
andre@4: 
andre@4:     connect(mModel, &QSortFilterProxyModel::sourceModelChanged,
andre@4:             this, &FilterWidget::headersChanged);
andre@4:     void (QComboBox:: *idxChanged)(int) = &QComboBox::currentIndexChanged;
andre@4:     connect(mCombo, idxChanged, this,
andre@4:             &FilterWidget::filterChanged);
andre@4:  //connect(mCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(filterChanged()));
andre@4:     connect(mEditLine, &QLineEdit::textChanged, this,
andre@4:             &FilterWidget::filterChanged);
andre@4: }
andre@4: 
andre@4: void FilterWidget::headersChanged() {
andre@4:     QAbstractItemModel *newSource = mModel->sourceModel();
andre@4:     Q_ASSERT(newSource);
andre@4:     mCombo->clear();
andre@14:     mColFilterMap.clear();
andre@14:     int addedItems = 0;
andre@4:     for (int i=0; i < newSource->columnCount(); i++) {
andre@14:         QString entry = newSource->headerData(i, Qt::Horizontal).toString();
andre@14:         if (!entry.startsWith("#")) {
andre@14:             mCombo->addItem(entry);
andre@14:             mColFilterMap.insert(addedItems++, i);
andre@14:         } else {
andre@17:             if (!newSource->setHeaderData(i, Qt::Horizontal, entry.remove(0,1), Qt::DisplayRole)) {
andre@17:                 qDebug() << "Setting header data failed.";
andre@17:             }
andre@14:         }
andre@4:     }
andre@4: }
andre@4: 
andre@4: void FilterWidget::filterChanged() {
andre@4:     QString filterText = mEditLine->text();
andre@14:     mModel->setFilterKeyColumn(mColFilterMap.value(mCombo->currentIndex()));
andre@4:     mModel->setFilterWildcard(filterText);
andre@4: }
andre@4: 
andre@4: void FilterWidget::setupGUI() {
andre@4:     QHBoxLayout *root = new QHBoxLayout;
andre@4: 
andre@4:     QGroupBox *baseGroup = new QGroupBox(tr("Filter"));
andre@4:     root->addWidget(baseGroup);
andre@4: 
andre@4:     QHBoxLayout *baseLayout = new QHBoxLayout;
andre@4:     baseGroup->setLayout(baseLayout);
andre@4: 
andre@4:     mCombo = new QComboBox;
andre@4:     baseLayout->addWidget(mCombo);
andre@4: 
andre@4:     mEditLine = new QLineEdit;
andre@4:     mEditLine->setPlaceholderText(tr("Filter expression"));
andre@4:     mEditLine->setClearButtonEnabled(true);
andre@4:     baseLayout->addWidget(mEditLine);
andre@4: 
andre@4:     setLayout(root);
andre@4: }
andre@4: