Qt/ModelView/AbstractListModelCheckable - Revision history

Daviddoria: Fixed - cannot use bool to represent a Qt::CheckState

2011-12-18T17:26:09Z

Fixed - cannot use bool to represent a Qt::CheckState

Daviddoria: /* AbstractListModelCheckable.cpp */

2011-12-18T17:15:34Z

‎AbstractListModelCheckable.cpp

Daviddoria: /* AbstractListModelCheckable.cpp */

2011-12-18T17:07:38Z

‎AbstractListModelCheckable.cpp

Daviddoria at 16:17, 18 December 2011

2011-12-18T16:17:21Z

Daviddoria: Created page with '==main.cpp== #include #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…'

2011-12-18T14:59:56Z

Created page with '==main.cpp== <source lang="cpp"> #include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…'

New page

==main.cpp==
<source lang="cpp">
#include <QApplication>

#include "form.h"

int main(int argc, char *argv[])
{
QApplication app(argc, argv);
Form form;

form.show();
return app.exec();
}

</source>

==AbstractListModelCheckable.h==
<source lang="cpp">
#ifndef AbstractListModelCheckable_H
#define AbstractListModelCheckable_H

#include <QAbstractListModel>

#include <QVector>

class Item
{
public:
Item(const QString& name = QString(), const bool displayed = false) :
Name(name), Displayed(displayed){}
QString Name;
bool Displayed;
};

class AbstractListModelCheckable : public QAbstractListModel
{
public:
AbstractListModelCheckable();

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

</source>

==AbstractListModelCheckable.cpp==
<source lang="cpp">
#include "AbstractListModelCheckable.h"

#include <sstream>

int AbstractListModelCheckable::setItems(const QVector<Item>& items)
{
this->Items = items;
}

Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex &index ) const
{
return Qt::ItemIsUserCheckable | Qt::ItemIsSelectable | Qt::ItemIsEditable;
}

AbstractListModelCheckable::AbstractListModelCheckable() : QAbstractListModel()
{

}

int AbstractListModelCheckable::rowCount(const QModelIndex& parent) const
{
return this->Items.size();
}

QVariant AbstractListModelCheckable::data (const QModelIndex &index , int role ) const
{
if (index.row() < 0 || index.row() >= rowCount())
{
return QVariant();
}

if (role == Qt::DisplayRole || role == Qt::EditRole)
{
return this->Items.at(index.row()).Name;
}

if(role == Qt::CheckStateRole)
{
return this->Items[index.row()].Displayed;
}

return QVariant();
}

bool AbstractListModelCheckable::setData (const QModelIndex &index, const QVariant &value, int role)
{
if (index.row() < 0 || index.row() >= rowCount())
{
return false;
}

if(role == Qt::EditRole || role == Qt::DisplayRole)
{
this->Items[index.row()].Name = value.toString();
emit dataChanged(index, index);
return true;
}
if(role == Qt::CheckStateRole)
{
this->Items[index.row()].Displayed = static_cast<Qt::CheckState>(value.toUInt());

emit dataChanged(index, index);
}
return true;

}

</source>

==form.h==
<source lang="cpp">
#ifndef FORM_H
#define FORM_H

#include "ui_form.h"

class Form : public QWidget, public Ui::Form
{
Q_OBJECT

public:
Form(QWidget *parent = 0);

public slots:

};

#endif

</source>

==form.cpp==
<source lang="cpp">
#include <QAbstractTableModel>
#include <QtGui>

#include <iostream>
#include <sstream>

#include "form.h"
#include "AbstractListModelCheckable.h"

Form::Form(QWidget *parent)
: QWidget(parent)
{
setupUi(this);

AbstractListModelCheckable* model = new AbstractListModelCheckable;

QVector<Item> items;
items.push_back(Item("Test0", true));
items.push_back(Item("Test1", false));
items.push_back(Item("Test2", true));
model->setItems(items);
this->tableView->setModel(model);
}

</source>

==form.ui==
<source lang="text">
<?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="0" column="0">
<widget class="QTableView" name="tableView">
<attribute name="horizontalHeaderStretchLastSection">
<bool>true</bool>
</attribute>
</widget>
</item>
<item row="1" column="0">
<widget class="QPushButton" name="btnUpdate">
<property name="text">
<string>Update</string>
</property>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>

</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(AbstractListModelCheckable)

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(AbstractListModelCheckable main.cpp AbstractListModelCheckable.cpp form.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(AbstractListModelCheckable ${QT_LIBRARIES})

</source>

@@ Line 70: / Line 70: @@
 Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex  &index ) const
+{
-   return Qt::ItemIsUserCheckable | Qt::ItemIsEditable | Qt::ItemIsEnabled;
+   return Qt::ItemIsUserCheckable | Qt::ItemIsEnabled;
+}

@@ Line 28: / Line 28: @@
+{
 public:
-   Item(const QString& name = QString(), const bool displayed = false) :
+   Item(const QString& name = QString(), const Qt::CheckState displayed = Qt::Unchecked) :
    Name(name), Displayed(displayed){}
    QString Name;
-   bool Displayed;
+   Qt::CheckState Displayed;
 };
@@ Line 72: / Line 72: @@
 Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex  &index ) const
+{
-   if (index.row() < 0 || index.row() >= rowCount())
+   if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
+     {
      return Qt::NoItemFlags;
@@ Line 91: / Line 91: @@
 QVariant AbstractListModelCheckable::data (const QModelIndex  &index , int role ) const
+{
-   if (index.row() < 0 || index.row() >= rowCount())
+   if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
+     {
      return QVariant();
@@ Line 111: / Line 111: @@
 bool AbstractListModelCheckable::setData (const QModelIndex &index, const QVariant &value, int role)
+{
-   if (index.row() < 0 || index.row() >= rowCount())
+   if (index.row() < 0 || index.row() >= rowCount() || !index.isValid())
+     {
      return false;
@@ Line 169: / Line 169: @@
    QVector<Item> items;
-   items.push_back(Item("Test0", true));
+   items.push_back(Item("Test0", Qt::Unchecked));
-   items.push_back(Item("Test1", false));
+   items.push_back(Item("Test1", Qt::Checked));
-   items.push_back(Item("Test2", true));
+   items.push_back(Item("Test2", Qt::Unchecked));
    model->setItems(items);
    this->tableView->setModel(model);

@@ Line 61: / Line 61: @@
 #include "AbstractListModelCheckable.h"
-#include <sstream>
+#include <iostream>
 int AbstractListModelCheckable::setItems(const QVector<Item>& items)
+{
    this->Items = items;
+}
 Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex  &index ) const
+{
-   return Qt::ItemIsUserCheckable | Qt::ItemIsEnabled;
+  if (index.row() < 0 || index.row() >= rowCount())
+}
@@ Line 110: / Line 116: @@
+     }
    if(role == Qt::CheckStateRole)
+     {
      this->Items[index.row()].Displayed = static_cast<Qt::CheckState>(value.toUInt());
-    emit dataChanged(index, index);
+  emit dataChanged(index, index);
-−
    return true;
+}