Mercurial > retraceit
comparison src/filterwidget.cpp @ 4:e4748da7140b
Add filter functionalty to metadataview
| author | Andre Heinecke <andre.heinecke@intevation.de> |
|---|---|
| date | Wed, 25 Mar 2015 14:23:46 +0100 |
| parents | |
| children | 315e6988952a |
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| 3:248d5d1cdb38 | 4:e4748da7140b |
|---|---|
| 1 #include "filterwidget.h" | |
| 2 | |
| 3 #include <QComboBox> | |
| 4 #include <QHBoxLayout> | |
| 5 #include <QGroupBox> | |
| 6 #include <QSortFilterProxyModel> | |
| 7 #include <QAbstractItemModel> | |
| 8 #include <QLineEdit> | |
| 9 #include <QDebug> | |
| 10 | |
| 11 FilterWidget::FilterWidget(QSortFilterProxyModel *model, QWidget *parent, Qt::WindowFlags f) : | |
| 12 QWidget(parent, f), | |
| 13 mModel(model) { | |
| 14 Q_ASSERT(model); | |
| 15 setupGUI(); | |
| 16 | |
| 17 connect(mModel, &QSortFilterProxyModel::sourceModelChanged, | |
| 18 this, &FilterWidget::headersChanged); | |
| 19 void (QComboBox:: *idxChanged)(int) = &QComboBox::currentIndexChanged; | |
| 20 connect(mCombo, idxChanged, this, | |
| 21 &FilterWidget::filterChanged); | |
| 22 //connect(mCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(filterChanged())); | |
| 23 connect(mEditLine, &QLineEdit::textChanged, this, | |
| 24 &FilterWidget::filterChanged); | |
| 25 } | |
| 26 | |
| 27 void FilterWidget::headersChanged() { | |
| 28 QAbstractItemModel *newSource = mModel->sourceModel(); | |
| 29 Q_ASSERT(newSource); | |
| 30 mCombo->clear(); | |
| 31 for (int i=0; i < newSource->columnCount(); i++) { | |
| 32 mCombo->addItem(newSource->headerData(i, Qt::Horizontal).toString()); | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 void FilterWidget::filterChanged() { | |
| 37 QString filterText = mEditLine->text(); | |
| 38 if (filterText.size() < 1) { | |
| 39 return; | |
| 40 } | |
| 41 mModel->setFilterKeyColumn(mCombo->currentIndex()); | |
| 42 mModel->setFilterWildcard(filterText); | |
| 43 } | |
| 44 | |
| 45 void FilterWidget::setupGUI() { | |
| 46 QHBoxLayout *root = new QHBoxLayout; | |
| 47 | |
| 48 QGroupBox *baseGroup = new QGroupBox(tr("Filter")); | |
| 49 root->addWidget(baseGroup); | |
| 50 | |
| 51 QHBoxLayout *baseLayout = new QHBoxLayout; | |
| 52 baseGroup->setLayout(baseLayout); | |
| 53 | |
| 54 mCombo = new QComboBox; | |
| 55 baseLayout->addWidget(mCombo); | |
| 56 | |
| 57 mEditLine = new QLineEdit; | |
| 58 mEditLine->setPlaceholderText(tr("Filter expression")); | |
| 59 mEditLine->setClearButtonEnabled(true); | |
| 60 baseLayout->addWidget(mEditLine); | |
| 61 | |
| 62 setLayout(root); | |
| 63 } | |
| 64 |