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/////////////////////////////////////////////////////////////////////////////
// Name: wx/qt/private/treeitemdelegate.h
// Purpose: Delegate to create text edit controls for the tree items
// Author: Matthew Griffin
// Created: 2019-05-29
// Copyright: Matthew Griffin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
#define _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
#include <QtWidgets/QStyledItemDelegate>
#include <QtWidgets/QToolTip>
#include "wx/app.h"
#include "wx/textctrl.h"
#include "treeitemfactory.h"
class wxQTTreeItemDelegate : public QStyledItemDelegate
{
public:
explicit wxQTTreeItemDelegate(wxWindow* parent)
: m_parent(parent),
m_textCtrl(NULL)
{
}
QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &WXUNUSED(option), const QModelIndex &index) const wxOVERRIDE
{
if ( m_textCtrl != NULL )
destroyEditor(m_textCtrl->GetHandle(), m_currentModelIndex);
m_currentModelIndex = index;
m_textCtrl = new wxQtListTextCtrl(m_parent, parent);
m_textCtrl->SetFocus();
return m_textCtrl->GetHandle();
}
void destroyEditor(QWidget *WXUNUSED(editor), const QModelIndex &WXUNUSED(index)) const wxOVERRIDE
{
if ( m_textCtrl != NULL )
{
m_currentModelIndex = QModelIndex(); // invalidate the index
wxTheApp->ScheduleForDestruction(m_textCtrl);
m_textCtrl = NULL;
}
}
void setModelData(QWidget *WXUNUSED(editor), QAbstractItemModel *WXUNUSED(model), const QModelIndex &WXUNUSED(index)) const wxOVERRIDE
{
// Don't set model data until wx has had a chance to send out events
}
wxTextCtrl* GetEditControl() const
{
return m_textCtrl;
}
QModelIndex GetCurrentModelIndex() const
{
return m_currentModelIndex;
}
void AcceptModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
{
QStyledItemDelegate::setModelData(editor, model, index);
}
bool helpEvent(QHelpEvent *event, QAbstractItemView *view, const QStyleOptionViewItem &option, const QModelIndex &index)
{
if ( event->type() == QEvent::ToolTip )
{
const QRect &itemRect = view->visualRect(index);
const QSize &bestSize = sizeHint(option, index);
if ( itemRect.width() < bestSize.width() )
{
const QString &value = index.data(Qt::DisplayRole).toString();
QToolTip::showText(event->globalPos(), value, view);
}
else
{
QToolTip::hideText();
}
return true;
}
return QStyledItemDelegate::helpEvent(event, view, option, index);
}
private:
wxWindow* m_parent;
mutable wxTextCtrl* m_textCtrl;
mutable QModelIndex m_currentModelIndex;
};
#endif // _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
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