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https://github.com/OPM/ResInsight.git
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333 lines
13 KiB
C++
333 lines
13 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#include "cafPdmUiTreeViewItemDelegate.h"
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#include "cafPdmChildArrayField.h"
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#include "cafPdmField.h"
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#include "cafPdmFieldReorderCapability.h"
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#include "cafPdmObject.h"
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#include "cafPdmPtrArrayFieldHandle.h"
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#include "cafPdmUiCommandSystemProxy.h"
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#include "cafPdmUiDragDropInterface.h"
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#include "cafPdmUiEditorHandle.h"
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#include "cafPdmUiTreeOrdering.h"
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#include "cafPdmUiTreeViewEditor.h"
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#include "cafPdmUiTreeViewQModel.h"
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#include "cafSelectionManager.h"
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#include <QEvent>
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#include <QIcon>
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#include <QModelIndexList>
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#include <QMouseEvent>
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#include <QPainter>
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#include <QStyleOptionViewItem>
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#include <QTreeView>
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namespace caf
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{
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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PdmUiTreeViewItemDelegate::PdmUiTreeViewItemDelegate( PdmUiTreeViewEditor* parent, QAbstractItemModel* model )
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: QStyledItemDelegate( parent->treeView() )
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, m_treeView( parent )
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, m_model( model )
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void PdmUiTreeViewItemDelegate::clearTags( QModelIndex index )
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{
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m_tags.erase( index );
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void PdmUiTreeViewItemDelegate::clearAllTags()
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{
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m_tags.clear();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void PdmUiTreeViewItemDelegate::addTag( QModelIndex index, std::unique_ptr<PdmUiTreeViewItemAttribute::Tag> tag )
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{
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std::vector<std::unique_ptr<PdmUiTreeViewItemAttribute::Tag>>& tagList = m_tags[index];
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tagList.push_back( std::move( tag ) );
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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QRect PdmUiTreeViewItemDelegate::tagRect( const QRect& itemRect, QModelIndex index, size_t tagIndex ) const
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{
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auto it = m_tags.find( index );
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if ( it == m_tags.end() ) return QRect();
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QSize fullSize = itemRect.size();
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QPoint offset( 0, 0 );
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for ( size_t i = 0; i < it->second.size(); ++i )
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{
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const PdmUiTreeViewItemAttribute::Tag* tag = it->second[i].get();
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if ( tag->icon.valid() )
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{
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auto icon = tag->icon.icon();
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QSize iconSize = icon->actualSize( fullSize );
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QRect iconRect;
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if ( tag->position == PdmUiTreeViewItemAttribute::Tag::AT_END )
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{
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QPoint bottomRight = itemRect.bottomRight() - offset;
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QPoint topLeft = bottomRight - QPoint( iconSize.width(), iconSize.height() );
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iconRect = QRect( topLeft, bottomRight );
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}
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else
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{
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QPoint topLeft = itemRect.topLeft() + offset;
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QPoint bottomRight = topLeft + QPoint( iconSize.width(), iconSize.height() );
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iconRect = QRect( topLeft, bottomRight );
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}
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offset += QPoint( iconSize.width() + 2, 0 );
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if ( i == tagIndex ) return iconRect;
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}
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}
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return QRect();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void PdmUiTreeViewItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
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{
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QStyledItemDelegate::paint( painter, option, index );
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auto it = m_tags.find( index );
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if ( it == m_tags.end() ) return;
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// Save painter so we can restore it
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painter->save();
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QRect rect = option.rect;
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QPoint center = rect.center();
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QSize fullSize = rect.size();
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QPoint offset( 0, 0 );
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for ( const std::unique_ptr<PdmUiTreeViewItemAttribute::Tag>& tag : it->second )
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{
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if ( tag->selectedOnly && !( option.state & QStyle::State_Selected ) ) continue;
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if ( tag->icon.valid() )
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{
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auto icon = tag->icon.icon();
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QSize iconSize = icon->actualSize( fullSize );
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QRect iconRect;
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if ( tag->position == PdmUiTreeViewItemAttribute::Tag::AT_END )
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{
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QPoint bottomRight( rect.bottomRight().x() - offset.x(), center.y() + iconSize.height() / 2 );
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QPoint topLeft( bottomRight.x() - iconSize.width(), bottomRight.y() - iconSize.height() );
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iconRect = QRect( topLeft, bottomRight );
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}
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else
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{
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QPoint topLeft( rect.topLeft().x() + offset.x(), center.y() - iconSize.height() / 2 );
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QPoint bottomRight( topLeft.x() + iconSize.width(), topLeft.y() + iconSize.height() );
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iconRect = QRect( topLeft, bottomRight );
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}
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offset += QPoint( iconSize.width() + 2, 0 );
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icon->paint( painter, iconRect );
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}
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else
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{
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const int insideTopBottomMargins = 1;
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const int insideleftRightMargins = 6;
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const int outsideLeftRightMargins = 4;
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QFont font = QApplication::font();
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if ( font.pixelSize() > 0 )
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{
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font.setPixelSize( std::max( 1, font.pixelSize() - 1 ) );
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}
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else
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{
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font.setPointSize( std::max( 1, font.pointSize() - 1 ) );
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}
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painter->setFont( font );
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QString text = tag->text;
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QColor bgColor = tag->bgColor;
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QColor fgColor = tag->fgColor;
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QSize textSize( QFontMetrics( font ).size( Qt::TextSingleLine, text ) );
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int textDiff = ( fullSize.height() - textSize.height() );
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QRect textRect;
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if ( tag->position == PdmUiTreeViewItemAttribute::Tag::AT_END )
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{
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QPoint bottomRight = rect.bottomRight() - QPoint( outsideLeftRightMargins, 0 ) - offset;
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QPoint textBottomRight = bottomRight - QPoint( insideleftRightMargins, textDiff / 2 );
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QPoint textTopLeft = textBottomRight - QPoint( textSize.width(), textSize.height() );
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textRect = QRect( textTopLeft, textBottomRight );
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}
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else
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{
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QPoint textTopLeft = QPoint( 0, rect.topLeft().y() ) + offset +
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QPoint( outsideLeftRightMargins + insideleftRightMargins, +textDiff / 2 );
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QPoint textBottomRight = textTopLeft + QPoint( textSize.width(), textSize.height() );
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textRect = QRect( textTopLeft, textBottomRight );
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}
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QRect tagRect = textRect.marginsAdded(
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QMargins( insideleftRightMargins, insideTopBottomMargins, insideleftRightMargins, insideTopBottomMargins ) );
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offset += QPoint( tagRect.width() + 2, 0 );
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QBrush brush( bgColor );
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painter->setBrush( brush );
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painter->setPen( bgColor );
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painter->setRenderHint( QPainter::Antialiasing );
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const double xRoundingRadiusPercent = 50.0;
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const double yRoundingRadiusPercent = 25.0;
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painter->drawRoundedRect( tagRect, xRoundingRadiusPercent, yRoundingRadiusPercent, Qt::RelativeSize );
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painter->setPen( fgColor );
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painter->drawText( textRect, Qt::AlignCenter, text );
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}
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}
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// Restore painter
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painter->restore();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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std::vector<const caf::PdmUiTreeViewItemAttribute::Tag*> PdmUiTreeViewItemDelegate::tags( QModelIndex index ) const
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{
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std::vector<const caf::PdmUiTreeViewItemAttribute::Tag*> tagPtrVector;
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auto it = m_tags.find( index );
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if ( it != m_tags.end() )
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{
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for ( const auto& tag : it->second )
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{
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tagPtrVector.push_back( tag.get() );
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}
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}
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return tagPtrVector;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool PdmUiTreeViewItemDelegate::editorEvent( QEvent* event,
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QAbstractItemModel* model,
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const QStyleOptionViewItem& option,
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const QModelIndex& itemIndex )
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{
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if ( event->type() == QEvent::MouseButtonPress )
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{
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auto* mouseEvent = static_cast<QMouseEvent*>( event );
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if ( mouseEvent->button() == Qt::LeftButton && mouseEvent->modifiers() == Qt::NoModifier )
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{
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const PdmUiTreeViewItemAttribute::Tag* tag;
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if ( tagClicked( mouseEvent->pos(), option.rect, itemIndex, &tag ) )
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{
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auto uiItem = m_treeView->uiItemFromModelIndex( itemIndex );
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auto parentIndex = itemIndex.parent();
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auto parentUiItem = m_treeView->uiItemFromModelIndex( parentIndex );
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auto* uiObjectHandle = dynamic_cast<PdmUiObjectHandle*>( uiItem );
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if ( uiObjectHandle )
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{
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PdmObjectHandle* pdmObject = uiObjectHandle->objectHandle();
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if ( pdmObject )
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{
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PdmFieldReorderCapability* reorderability =
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PdmFieldReorderCapability::reorderCapabilityOfParentContainer( pdmObject );
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size_t indexInParent = reorderability->indexOf( pdmObject );
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tag->clicked.send( indexInParent );
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}
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}
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bool notifyEditors = true;
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m_treeView->updateSubTree( parentUiItem, notifyEditors );
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m_treeView->selectAsCurrentItem( uiItem );
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return true;
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}
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}
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}
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return QStyledItemDelegate::editorEvent( event, model, option, itemIndex );
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool PdmUiTreeViewItemDelegate::tagClicked( const QPoint& pos,
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const QRect& itemRect,
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const QModelIndex& itemIndex,
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const PdmUiTreeViewItemAttribute::Tag** tag ) const
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{
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if ( itemIndex.isValid() )
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{
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auto itemTags = tags( itemIndex );
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for ( size_t i = 0; i < itemTags.size(); ++i )
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{
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QRect rect = tagRect( itemRect, itemIndex, i );
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if ( rect.contains( pos ) )
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{
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*tag = itemTags[i];
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return true;
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}
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}
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}
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return false;
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}
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} // namespace caf
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