Qt/ModelView/AbstractListModelFileDialog

main.cpp

#include <QApplication>
 
#include "form.h"
 
int main(int argc, char *argv[])
{
  QApplication app(argc, argv);
  Form form;
 
  form.show();
  return app.exec();
}

AbstractListModelFileDialog.h

#ifndef AbstractListModel_H
#define AbstractListModel_H
 
#include <QAbstractListModel>
 
#include <QVector>
 
class Item
{
public:
  Item(const QString& name = QString()) :  Name(name){}
  QString Name;
};
 
class AbstractListModel : public QAbstractListModel
{
public:
  AbstractListModel();
 
  QVariant data(const QModelIndex& index, int role) const;
 
  bool setData (const QModelIndex &index, const QVariant &value, int role);
 
  int rowCount(const QModelIndex  &parent=QModelIndex() ) const;
 
  int setItems(const QVector<Item>& items);
 
  Qt::ItemFlags flags (const QModelIndex  &index ) const;
 
protected:
  QVector<Item> Items;
};
 
#endif

AbstractListModelFileDialog.cpp

#include "AbstractListModelFileDialog.h"
 
#include <iostream>
 
int AbstractListModel::setItems(const QVector<Item>& items)
{
  emit beginResetModel();
  this->Items = items;
  emit endResetModel();
}
 
Qt::ItemFlags AbstractListModel::flags (const QModelIndex  &index ) const
{
  if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
    {
    return Qt::NoItemFlags;
    }
  return Qt::ItemIsEditable | Qt::ItemIsEnabled;
}
 
AbstractListModel::AbstractListModel() : QAbstractListModel()
{
 
}
 
int AbstractListModel::rowCount(const QModelIndex& parent) const
{
  return this->Items.size();
}
 
QVariant AbstractListModel::data (const QModelIndex  &index , int role ) const
{
  if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
    {
    return QVariant();
    }
 
  if (role == Qt::DisplayRole || role == Qt::EditRole)
    {
    return this->Items.at(index.row()).Name;
    }
 
  return QVariant();
}
 
bool AbstractListModel::setData (const QModelIndex &index, const QVariant &value, int role)
{
  if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
    {
    return false;
    }
 
  if (role == Qt::DisplayRole || role == Qt::EditRole)
    {
    this->Items[index.row()].Name = value.toString();
    }
  emit dataChanged(index, index);
  return true;
}

form.h

#ifndef FORM_H
#define FORM_H
 
#include "ui_form.h"
 
class AbstractListModel;
 
class Form : public QWidget, public Ui::Form
{
    Q_OBJECT
 
public:
    Form(QWidget *parent = 0);
 
  public slots:
  void editSlot(QModelIndex index);
 
protected:
  AbstractListModel* Model;
};
 
#endif

form.cpp

#include <QAbstractListModel>
#include <QtGui>
 
#include <iostream>
 
#include "form.h"
#include "AbstractListModelFileDialog.h"
 
Form::Form(QWidget *parent)
    : QWidget(parent)
{
  setupUi(this);
 
  this->Model = new AbstractListModel;
 
  connect (this->listView, SIGNAL(clicked(QModelIndex)), this, SLOT(editSlot(QModelIndex)));
 
  QVector<Item> items;
  items.push_back(Item("Test0"));
  items.push_back(Item("Test1"));
  items.push_back(Item("Test2"));
  this->Model->setItems(items);
  this->listView->setModel(this->Model);
}
 
void Form::editSlot(QModelIndex index)
{
  if (index.row() == 0)
    {
    QString fileName = QFileDialog::getOpenFileName(this, "Open", "", "Files (*.*)");
    this->Model->setData(index, fileName, Qt::EditRole);
    }
}

form.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <layout class="QGridLayout" name="gridLayout">
   <item row="1" column="0">
    <widget class="QPushButton" name="btnUpdate">
     <property name="text">
      <string>Update</string>
     </property>
    </widget>
   </item>
   <item row="0" column="0">
    <widget class="QListView" name="listView"/>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections/>
</ui>

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
 
PROJECT(AbstractListModelFileDialog)
 
FIND_PACKAGE(Qt4 REQUIRED)
INCLUDE(${QT_USE_FILE})
 
QT4_WRAP_UI(UISrcs form.ui)
QT4_WRAP_CPP(MOCSrcs form.h)
 
include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
ADD_EXECUTABLE(AbstractListModelFileDialog main.cpp AbstractListModelFileDialog.cpp form.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(AbstractListModelFileDialog ${QT_LIBRARIES})