ProjectTreeView Class Reference

View for ProjectTreeModel representing the project tree. More...

#include <treeview.h>

Inheritance diagram for ProjectTreeView:

Collaboration diagram for ProjectTreeView:

List of all members.

Public Member Functions
	ProjectTreeView (QWidget *parent=0)
	~ProjectTreeView ()
virtual void	setModel (QAbstractItemModel *model)
ProjectTreeModel *	model ()
Protected Slots
virtual void	onCollapse (const QModelIndex &index)
virtual void	onExpand (const QModelIndex &index)
Protected Member Functions
void	contextMenuEvent (QContextMenuEvent *e)

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Detailed Description

View for ProjectTreeModel representing the project tree.

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Constructor & Destructor Documentation

ProjectTreeView::ProjectTreeView

(

QWidget *

parent = 0

)

                                                          : QTreeView(parent)
{
    qRegisterMetaTypeStreamOperators<TreePathList>("TreePathList"); //QSettings needs this to save and load. The parser knows its QList< QVector<long long int> >
    expandedTreePaths = QSettings().value("projecttree/treeview/states").value<TreePathList>();

    setModel(new ProjectTreeModel(this)); //er zijn dependenties hierop (!): moet in constructor worden uitgevoerd.
    setItemDelegate(new TreeViewDelegate(this));
    setSelectionMode(QAbstractItemView::ExtendedSelection);
    setDragEnabled(true);
    setDropIndicatorShown(true);
    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum);
    setAlternatingRowColors(true);

    restoreExpandedItems();
    resizeColumnToContents(0); //must be updated after restoration!

    // Setup connections
    connect(this, SIGNAL(expanded(QModelIndex)), this, SLOT(onExpand(QModelIndex)));
    connect(this, SIGNAL(collapsed(QModelIndex)), this, SLOT(onCollapse(QModelIndex)));
}

ProjectTreeView::~ProjectTreeView

(

)

{
    saveExpandedItems();
}

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Member Function Documentation

void ProjectTreeView::contextMenuEvent

(

QContextMenuEvent *

e

)

[protected]

{
    // In base class QAbstractScrollArea this event is ignored
    QPoint pos = e->globalPos();
    QModelIndex treeItemIndex = indexAt(viewport()->mapFromGlobal(pos));
    selectionModel()->select(treeItemIndex, QItemSelectionModel::ClearAndSelect);

    // Check if a menu is needed
    if (!treeItemIndex.isValid()) return;

    // Execute menu
    TreeViewMenu menu(treeItemIndex);
    qDebug() << "Menu returned: " << menu.exec(pos);
}

ProjectTreeModel * ProjectTreeView::model

(

)

{
    return dynamic_cast<ProjectTreeModel*>(QTreeView::model());
}

void ProjectTreeView::onCollapse

(

const QModelIndex &

index

)

[protected, virtual, slot]

Referenced by ProjectTreeView().

{
    resizeColumnToContents(0);
    TreePath path = index.data(ProjectTreeModel::TreeItemPath).value<TreePath>();
    Q_ASSERT(!path.isEmpty());
    expandedTreePaths.removeAll(path);
}

void ProjectTreeView::onExpand

(

const QModelIndex &

index

)

[protected, virtual, slot]

Referenced by ProjectTreeView().

{
    resizeColumnToContents(0);
    TreePath path = index.data(ProjectTreeModel::TreeItemPath).value<TreePath>();
    Q_ASSERT(!path.isEmpty());
    if (!expandedTreePaths.contains(path))
        expandedTreePaths.append(path);
}

void ProjectTreeView::setModel

(

QAbstractItemModel *

model

)

[virtual]

Reimplemented from QTreeView.

Referenced by ProjectTreeView().

{
    QTreeView::setModel(model);
    connect(model, SIGNAL(modelReset()), this, SLOT(restoreExpandedItems()));
}

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The documentation for this class was generated from the following files:

• treeview.h
• treeview.cpp