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annotate src/filterwidget.cpp @ 4:e4748da7140b

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Add filter functionalty to metadataview
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 25 Mar 2015 14:23:46 +0100
parents
children 315e6988952a
rev   line source
4
e4748da7140b Add filter functionalty to metadataview
Andre Heinecke <andre.heinecke@intevation.de>
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1 #include "filterwidget.h"
e4748da7140b Add filter functionalty to metadataview
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2
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3 #include <QComboBox>
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4 #include <QHBoxLayout>
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5 #include <QGroupBox>
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6 #include <QSortFilterProxyModel>
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7 #include <QAbstractItemModel>
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8 #include <QLineEdit>
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9 #include <QDebug>
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10
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Andre Heinecke <andre.heinecke@intevation.de>
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11 FilterWidget::FilterWidget(QSortFilterProxyModel *model, QWidget *parent, Qt::WindowFlags f) :
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12 QWidget(parent, f),
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13 mModel(model) {
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14 Q_ASSERT(model);
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15 setupGUI();
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16
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17 connect(mModel, &QSortFilterProxyModel::sourceModelChanged,
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18 this, &FilterWidget::headersChanged);
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19 void (QComboBox:: *idxChanged)(int) = &QComboBox::currentIndexChanged;
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20 connect(mCombo, idxChanged, this,
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21 &FilterWidget::filterChanged);
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22 //connect(mCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(filterChanged()));
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23 connect(mEditLine, &QLineEdit::textChanged, this,
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24 &FilterWidget::filterChanged);
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25 }
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26
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27 void FilterWidget::headersChanged() {
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28 QAbstractItemModel *newSource = mModel->sourceModel();
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29 Q_ASSERT(newSource);
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Andre Heinecke <andre.heinecke@intevation.de>
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30 mCombo->clear();
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31 for (int i=0; i < newSource->columnCount(); i++) {
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32 mCombo->addItem(newSource->headerData(i, Qt::Horizontal).toString());
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33 }
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34 }
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35
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36 void FilterWidget::filterChanged() {
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37 QString filterText = mEditLine->text();
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38 if (filterText.size() < 1) {
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39 return;
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40 }
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41 mModel->setFilterKeyColumn(mCombo->currentIndex());
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42 mModel->setFilterWildcard(filterText);
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43 }
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44
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45 void FilterWidget::setupGUI() {
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46 QHBoxLayout *root = new QHBoxLayout;
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47
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48 QGroupBox *baseGroup = new QGroupBox(tr("Filter"));
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49 root->addWidget(baseGroup);
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50
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51 QHBoxLayout *baseLayout = new QHBoxLayout;
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52 baseGroup->setLayout(baseLayout);
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53
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54 mCombo = new QComboBox;
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55 baseLayout->addWidget(mCombo);
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56
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57 mEditLine = new QLineEdit;
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58 mEditLine->setPlaceholderText(tr("Filter expression"));
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59 mEditLine->setClearButtonEnabled(true);
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60 baseLayout->addWidget(mEditLine);
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61
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62 setLayout(root);
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63 }
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64
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