cc1ec9e562
This matches the behaviour of the native control in wxMSW and is generally useful. Closes https://github.com/wxWidgets/wxWidgets/pull/1397
100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/qt/private/treeitemdelegate.h
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// Purpose: Delegate to create text edit controls for the tree items
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// Author: Matthew Griffin
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// Created: 2019-05-29
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// Copyright: Matthew Griffin
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
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#define _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
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#include <QtWidgets/QStyledItemDelegate>
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#include <QtWidgets/QToolTip>
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#include "wx/app.h"
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#include "wx/textctrl.h"
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#include "treeitemfactory.h"
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class wxQTTreeItemDelegate : public QStyledItemDelegate
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{
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public:
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explicit wxQTTreeItemDelegate(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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QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &WXUNUSED(option), const QModelIndex &index) const wxOVERRIDE
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{
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if ( m_textCtrl != NULL )
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destroyEditor(m_textCtrl->GetHandle(), m_currentModelIndex);
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m_currentModelIndex = index;
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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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void destroyEditor(QWidget *WXUNUSED(editor), const QModelIndex &WXUNUSED(index)) const wxOVERRIDE
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{
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if ( m_textCtrl != NULL )
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{
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m_currentModelIndex = QModelIndex(); // invalidate the index
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wxTheApp->ScheduleForDestruction(m_textCtrl);
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m_textCtrl = NULL;
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}
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}
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void setModelData(QWidget *WXUNUSED(editor), QAbstractItemModel *WXUNUSED(model), const QModelIndex &WXUNUSED(index)) const wxOVERRIDE
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{
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// Don't set model data until wx has had a chance to send out events
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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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QModelIndex GetCurrentModelIndex() const
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{
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return m_currentModelIndex;
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}
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void AcceptModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
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{
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QStyledItemDelegate::setModelData(editor, model, index);
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}
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bool helpEvent(QHelpEvent *event, QAbstractItemView *view, const QStyleOptionViewItem &option, const QModelIndex &index)
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{
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if ( event->type() == QEvent::ToolTip )
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{
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const QRect &itemRect = view->visualRect(index);
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const QSize &bestSize = sizeHint(option, index);
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if ( itemRect.width() < bestSize.width() )
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{
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const QString &value = index.data(Qt::DisplayRole).toString();
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QToolTip::showText(event->globalPos(), value, view);
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}
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else
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{
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QToolTip::hideText();
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}
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return true;
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}
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return QStyledItemDelegate::helpEvent(event, view, option, index);
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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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mutable QModelIndex m_currentModelIndex;
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};
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#endif // _WX_QT_PRIVATE_TREEITEM_DELEGATE_H
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