CppQTreeViewExample1.md

 

 

 

 

 

(C++) QTreeViewExample1

 

 

QTreeView example 1: add a row is an example to use a QTreeView.

 

• View a screenshot of 'CppQTreeViewExample1' (png)
• Download the Qt Creator project 'CppQTreeViewExample1' (zip)

Technical facts

 

Application type(s)

• Desktop application

Operating system(s) or programming environment(s)

• Lubuntu 15.04 (vivid)

IDE(s):

• Qt Creator 3.1.1

Project type:

• GUI application

C++ standard:

• C++98

Compiler(s):

• G++ 4.9.2

Libraries used:

• Qt: version 5.4.1 (32 bit)
• STL: GNU ISO C++ Library, version 4.9.2

 

 

 

 

 

Qt project file: ./CppQTreeViewExample1/CppQTreeViewExample1.pro

 

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QT       += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TEMPLATE = app SOURCES += \     qtdialog.cpp \     qtmain.cpp HEADERS  += qtdialog.h FORMS    += qtdialog.ui

 

 

 

 

 

./CppQTreeViewExample1/qtdialog.h

 

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#ifndef QTDIALOG_H #define QTDIALOG_H #include <QDialog> namespace Ui {   class QtDialog; } struct QStandardItemModel; class QtDialog : public QDialog {   Q_OBJECT    public:   explicit QtDialog(QWidget *parent = 0);   ~QtDialog();    private slots:   void on_button_clicked(); private:   Ui::QtDialog *ui;   QStandardItemModel * const m_model; }; #endif // QTDIALOG_H

 

 

 

 

 

./CppQTreeViewExample1/qtdialog.cpp

 

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#include "qtdialog.h" #include <QStandardItemModel> #include <QStyledItemDelegate> #include "ui_qtdialog.h" QtDialog::QtDialog(QWidget *parent) :   QDialog(parent),   ui(new Ui::QtDialog),   m_model(new QStandardItemModel) {   ui->setupUi(this);   ui->tree->setModel(m_model);   ui->tree->setItemDelegate(new QStyledItemDelegate); } QtDialog::~QtDialog() {   delete ui; } void QtDialog::on_button_clicked() {   QStandardItem * const item = new QStandardItem;   item->setText("");   m_model->appendRow(item);   ui->tree->scrollToBottom();   ui->tree->setCurrentIndex(item->index());   ui->tree->edit(item->index()); }

 

 

 

 

 

./CppQTreeViewExample1/qtmain.cpp

 

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#include <QApplication> #include "qtdialog.h" int main(int argc, char *argv[]) {   QApplication a(argc, argv);   QtDialog w;   w.show();      return a.exec(); }