Differential D22200 Diff 61614 src/commonfrontend/widgets/TreeViewComboBox.cpp

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src/commonfrontend/widgets/TreeViewComboBox.cpp

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33#include "backend/lib/macros.h" 33​#include "backend/lib/macros.h"
34 34​
35#include <QEvent> 35​#include <QEvent>
36#include <QGroupBox> 36​#include <QGroupBox>
37#include <QHeaderView> 37​#include <QHeaderView>
38#include <QLineEdit> 38​#include <QLineEdit>
39#include <QTreeView> 39​#include <QTreeView>
40#include <QVBoxLayout> 40​#include <QVBoxLayout>
41​#include <QStylePainter>
41 42​
42#include <KLocalizedString> 43​#include <KLocalizedString>
43 44​
44#include <cstring> // strcmp() 45​#include <cstring> // strcmp()
45 46​
46/*! 47​/*!
47 \class TreeViewComboBox 48​ \class TreeViewComboBox
48 \brief Provides a QTreeView in a QComboBox. 49​ \brief Provides a QTreeView in a QComboBox.
Show All 22 Lines53TreeViewComboBox::TreeViewComboBox(QWidget* parent) : QComboBox(parent),
71 m_treeView->setUniformRowHeights(true); 72​ m_treeView->setUniformRowHeights(true);
72 73​
73 m_lineEdit->setPlaceholderText(i18n("Search/Filter text")); 74​ m_lineEdit->setPlaceholderText(i18n("Search/Filter text"));
74 m_lineEdit->setClearButtonEnabled(true); 75​ m_lineEdit->setClearButtonEnabled(true);
75 m_lineEdit->setFocus(); 76​ m_lineEdit->setFocus();
76 77​
77 addItem(QString()); 78​ addItem(QString());
78 setCurrentIndex(0); 79​ setCurrentIndex(0);
80​ setEditText(m_lineEditText);
79 81​
80 // signal activated() is platform dependent 82​ // signal activated() is platform dependent
81 connect(m_treeView, &QTreeView::pressed, this, &TreeViewComboBox::treeViewIndexActivated); 83​ connect(m_treeView, &QTreeView::pressed, this, &TreeViewComboBox::treeViewIndexActivated);
82 connect(m_lineEdit, &QLineEdit::textChanged, this, &TreeViewComboBox::filterChanged); 84​ connect(m_lineEdit, &QLineEdit::textChanged, this, &TreeViewComboBox::filterChanged);
83} 85​}
84 86​
85void TreeViewComboBox::setTopLevelClasses(const QList<AspectType>& list) 87​void TreeViewComboBox::setTopLevelClasses(const QList<AspectType>& list)
86{ 88​{
Show All 11 Lines99void TreeViewComboBox::setModel(QAbstractItemModel* model) {
98 m_treeView->setModel(model); 100​ m_treeView->setModel(model);
99 101​
100 //show only the first column in the combo box 102​ //show only the first column in the combo box
101 for (int i = 1; i < model->columnCount(); i++) 103​ for (int i = 1; i < model->columnCount(); i++)
102 m_treeView->hideColumn(i); 104​ m_treeView->hideColumn(i);
103 105​
104 //Expand the complete tree in order to see everything in the first popup. 106​ //Expand the complete tree in order to see everything in the first popup.
105 m_treeView->expandAll(); 107​ m_treeView->expandAll();
108​
109​ setEditText(m_lineEditText);
106} 110​}
107 111​
108/*! 112​/*!
109 Sets the current item to be the item at \a index and selects it. 113​ Sets the current item to be the item at \a index and selects it.
110 \sa currentIndex() 114​ \sa currentIndex()
111*/ 115​*/
112void TreeViewComboBox::setCurrentModelIndex(const QModelIndex& index) { 116​void TreeViewComboBox::setCurrentModelIndex(const QModelIndex& index) {
113 m_treeView->setCurrentIndex(index); 117​ m_treeView->setCurrentIndex(index);
Show All 13 Lines129/*!
127 Triggers showTopLevelOnly() to show toplevel items only. 131​ Triggers showTopLevelOnly() to show toplevel items only.
128*/ 132​*/
129void TreeViewComboBox::showPopup() { 133​void TreeViewComboBox::showPopup() {
130 if (!m_treeView->model() || !m_treeView->model()->hasChildren()) 134​ if (!m_treeView->model() || !m_treeView->model()->hasChildren())
131 return; 135​ return;
132 136​
133 QModelIndex root = m_treeView->model()->index(0,0); 137​ QModelIndex root = m_treeView->model()->index(0,0);
134 showTopLevelOnly(root); 138​ showTopLevelOnly(root);
135 ​
136 m_lineEdit->setText(QString()); ​
137 m_groupBox->show(); 139​ m_groupBox->show();
138 m_groupBox->resize(this->width(), 250); 140​ m_groupBox->resize(this->width(), 250);
139 m_groupBox->move(mapToGlobal( this->rect().topLeft() )); 141​ m_groupBox->move(mapToGlobal( this->rect().topLeft() ));
142​
143​ setEditText(m_lineEditText);
144​}
145​
146​/*!
147​ \reimp
148​ TODO: why do I have to reimplement paintEvent. It should work
149​ also without
150​*/
151​void TreeViewComboBox::paintEvent(QPaintEvent *)
152​{
153​ QStylePainter painter(this);
154​ painter.setPen(palette().color(QPalette::Text));
155​ // draw the combobox frame, focusrect and selected etc.
156​ QStyleOptionComboBox opt;
157​ initStyleOption(&opt);
158​ opt.currentText = currentText(); // TODO: why it's not working when letting this away?
159​ painter.drawComplexControl(QStyle::CC_ComboBox, opt);
160​ // draw the icon and text
161​ painter.drawControl(QStyle::CE_ComboBoxLabel, opt);
140} 162​}
141 163​
142void TreeViewComboBox::hidePopup() { 164​void TreeViewComboBox::hidePopup() {
143 m_groupBox->hide(); 165​ m_groupBox->hide();
144} 166​}
145 167​
168​
169​void TreeViewComboBox::useCurrentIndexText(const bool set) {
170​ m_useCurrentIndexText = set;
171​}
172​
173​/*!
174​ \property QComboBox::currentText
175​ \brief the current text
176​ If the combo box is editable, the current text is the value displayed
177​ by the line edit. Otherwise, it is the value of the current item or
178​ an empty string if the combo box is empty or no current item is set.
179​ The setter setCurrentText() simply calls setEditText() if the combo box is editable.
180​ Otherwise, if there is a matching text in the list, currentIndex is set to the
181​ corresponding index.
182​ If m_useCurrentIndexText is false, the Text set with setText is used. The intention of displaying
183​ this text is to show a text in the case of removed element.
184​ \sa editable, setEditText()
185​*/
186​QString TreeViewComboBox::currentText() const {
187​ if (lineEdit())
188​ return lineEdit()->text();
189​ else if (currentModelIndex().isValid() && m_useCurrentIndexText)
190​ return itemText(currentIndex());
191​ else if (!m_useCurrentIndexText)
192​ return m_lineEditText;
193​ else
194​ return QString();
195​}
196​
197​void TreeViewComboBox::setText(QString text) {
198​ m_lineEditText = text;
199​}
200​
201​void TreeViewComboBox::setInvalid(bool invalid, QString tooltip) {
202​ if (invalid) {
203​ setStyleSheet("background: red;");
204​ setToolTip(tooltip);
205​ return;
206​ }
207​
208​ setToolTip("");
209​ setStyleSheet("");
210​}
211​
146/*! 212​/*!
147 Hides the non-toplevel items of the model used in the tree view. 213​ Hides the non-toplevel items of the model used in the tree view.
148*/ 214​*/
149void TreeViewComboBox::showTopLevelOnly(const QModelIndex & index) { 215​void TreeViewComboBox::showTopLevelOnly(const QModelIndex & index) {
150 int rows = index.model()->rowCount(index); 216​ int rows = index.model()->rowCount(index);
151 for (int i = 0; i < rows; i++) { 217​ for (int i = 0; i < rows; i++) {
152 QModelIndex child = index.model()->index(i, 0, index); 218​ QModelIndex child = index.model()->index(i, 0, index);
153 showTopLevelOnly(child); 219​ showTopLevelOnly(child);
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