123 lines
3.5 KiB
C++
123 lines
3.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/qt/private/treeitemfactory.h
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// Purpose: Factory to create text edit controls for the tree items
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// Author: Graham Dawes
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// Created: 2019-02-07
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// Copyright: Graham Dawes
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_QT_PRIVATE_TREEITEM_FACTORY_H_
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#define _WX_QT_PRIVATE_TREEITEM_FACTORY_H_
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#include <QtWidgets/QItemEditorFactory>
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#include <QtWidgets/QTreeWidget>
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#include <QtWidgets/QItemDelegate>
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#include "wx/recguard.h"
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#include "wx/textctrl.h"
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// wxQT Doesn't have a mechanism for "adopting" external widgets so we have to
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// create an instance of wxTextCtrl rather than adopting the control QT would
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// create.
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//
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// Unfortunately the factory is given an internal widget as the parent for
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// editor.
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//
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// To work around these issues we create a wxTextCtl parented by the wxListCtrl
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// then recalculate its position relative to the internal widget.
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class wxQtListTextCtrl : public wxTextCtrl
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{
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public:
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wxQtListTextCtrl(wxWindow* parent, QWidget* actualParent)
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: wxTextCtrl(parent, wxID_ANY, wxEmptyString,
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wxDefaultPosition, wxDefaultSize,
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wxNO_BORDER),
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m_actualParent(actualParent),
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m_moving(0)
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{
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Bind(wxEVT_MOVE, &wxQtListTextCtrl::OnMove, this);
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}
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void OnMove(wxMoveEvent &event)
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{
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// QWidget::move generates a QMoveEvent so we need to guard against
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// reentrant calls.
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wxRecursionGuard guard(m_moving);
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if ( guard.IsInside() )
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{
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event.Skip();
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return;
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}
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const QPoint eventPos = wxQtConvertPoint(event.GetPosition());
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const QPoint globalPos = m_actualParent->mapToGlobal(eventPos);
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// For some reason this always gives us the offset from the header info
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// the internal control. So we need to treat this as an offset rather
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// than a position.
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QWidget* widget = GetHandle();
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const QPoint offset = widget->mapFromGlobal(globalPos);
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widget->move(eventPos + offset);
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}
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private:
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QWidget* m_actualParent;
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wxRecursionGuardFlag m_moving;
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wxDECLARE_NO_COPY_CLASS(wxQtListTextCtrl);
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};
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// QT doesn't give us direct access to the editor within the QTreeWidget.
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// Instead, we'll supply a factory to create the widget for QT and keep track
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// of it ourselves.
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class wxQtTreeItemEditorFactory : public QItemEditorFactory
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{
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public:
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explicit wxQtTreeItemEditorFactory(wxWindow* parent)
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: m_parent(parent),
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m_textCtrl(NULL)
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{
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}
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void AttachTo(QTreeWidget *tree)
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{
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QAbstractItemDelegate* delegate = tree->itemDelegate();
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QItemDelegate *qItemDelegate = static_cast<QItemDelegate*>(delegate);
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qItemDelegate->setItemEditorFactory(this);
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}
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QWidget* createEditor(int WXUNUSED(userType), QWidget* parent) const wxOVERRIDE
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{
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if (m_textCtrl != NULL)
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ClearEditor();
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m_textCtrl = new wxQtListTextCtrl(m_parent, parent);
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m_textCtrl->SetFocus();
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return m_textCtrl->GetHandle();
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}
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wxTextCtrl* GetEditControl() const
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{
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return m_textCtrl;
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}
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void ClearEditor() const
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{
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delete m_textCtrl;
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m_textCtrl = NULL;
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}
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private:
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wxWindow* m_parent;
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mutable wxTextCtrl* m_textCtrl;
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wxDECLARE_NO_COPY_CLASS(wxQtTreeItemEditorFactory);
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};
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#endif //_WX_QT_PRIVATE_TREEITEM_FACTORY_H_
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