Jim Evins
853 lines
15 KiB
C++
853 lines
15 KiB
C++
/* LabelModel.cpp
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*
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* Copyright (C) 2013 Jim Evins <evins@snaught.com>
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*
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* This file is part of gLabels-qt.
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*
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* gLabels-qt 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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* gLabels-qt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gLabels-qt. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "LabelModel.h"
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#include <cmath>
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namespace glabels
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{
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/**
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* Default constructor.
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*/
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LabelModel::LabelModel() : mModified(true)
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{
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}
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/**
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* Add item.
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*/
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void LabelModel::addItem( LabelModelItem *item )
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{
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item->setParent( this );
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mItemList << item;
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connect( item, SIGNAL(changed()), this, SLOT(itemChanged(LabelModelItem*)) );
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connect( item, SIGNAL(moved()), this, SLOT(itemMoved(LabelModelItem*)) );
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mModified = true;
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emit itemAdded( item );
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emit changed();
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}
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void LabelModel::onItemChanged( LabelModelItem *item )
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{
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mModified = true;
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emit itemChanged( item );
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emit changed();
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}
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void LabelModel::onItemMoved( LabelModelItem *item )
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{
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mModified = true;
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emit itemMoved( item );
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emit changed();
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}
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void LabelModel::deleteItem( LabelModelItem *item )
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{
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item->unselect();
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mItemList.removeOne( item );
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disconnect( item, 0, this, 0 );
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mModified = true;
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emit itemDeleted( item );
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emit changed();
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}
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/**
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* Select item.
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*/
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void LabelModel::selectItem( LabelModelItem *item )
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{
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item->select();
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emit selectionChanged();
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}
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/**
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* Unselect item.
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*/
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void LabelModel::unselectItem( LabelModelItem *item )
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{
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item->unselect();
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emit selectionChanged();
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}
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/**
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* Select all items.
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*/
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void LabelModel::selectAll()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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item->select();
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}
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emit selectionChanged();
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}
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/**
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* Unselect item all items.
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*/
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void LabelModel::unselectAll()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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item->unselect();
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}
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emit selectionChanged();
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}
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void LabelModel::selectRegion( const LabelRegion ®ion )
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{
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double rX1 = std::min( region.x1(), region.x2() );
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double rY1 = std::min( region.y1(), region.y2() );
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double rX2 = std::max( region.x1(), region.x2() );
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double rY2 = std::max( region.y1(), region.y2() );
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foreach ( LabelModelItem *item, mItemList )
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{
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LabelRegion itemExtent = item->getExtent();
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if ( (itemExtent.x1() >= rX1) &&
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(itemExtent.x2() <= rX2) &&
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(itemExtent.y1() >= rY1) &&
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(itemExtent.y2() <= rY2) )
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{
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item->select();
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}
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}
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emit selectionChanged();
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}
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bool LabelModel::isSelectionEmpty()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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return false;
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}
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}
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return true;
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}
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bool LabelModel::isSelectionAtomic()
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{
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int nSelected = 0;
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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nSelected++;
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if ( nSelected > 1 )
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{
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return false;
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}
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}
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}
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return (nSelected == 1);
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}
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QList<LabelModelItem *> LabelModel::getSelection()
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{
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QList<LabelModelItem*> selectedList;
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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selectedList << item;
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}
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}
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}
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LabelModelItem *LabelModel::getFirstSelectedItem()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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return item;
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}
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}
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}
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bool LabelModel::canSelectionText()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() && item->canText() )
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{
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return true;
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}
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}
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return false;
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}
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bool LabelModel::canSelectionFill()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() && item->canFill() )
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{
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return true;
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}
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}
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return false;
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}
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bool LabelModel::canSelectionLineColor()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() && item->canLineColor() )
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{
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return true;
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}
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}
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return false;
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}
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bool LabelModel::canSelectionLineWidth()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() && item->canLineWidth() )
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{
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return true;
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}
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}
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return false;
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}
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void LabelModel::deleteSelection()
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{
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QList<LabelModelItem*> selectedList = getSelection();
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foreach ( LabelModelItem *item, selectedList )
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{
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deleteItem( item );
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}
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mModified = true;
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emit changed();
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emit selectionChanged();
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}
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void LabelModel::raiseSelectionToTop()
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{
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QList<LabelModelItem*> selectedList = getSelection();
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foreach ( LabelModelItem *item, selectedList )
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{
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mItemList.removeOne( item );
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}
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/* Move to end of list, representing top most item. */
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foreach ( LabelModelItem *item, selectedList )
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{
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mItemList.push_back( item );
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emit itemToTop( item );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::lowerSelectionToBottom()
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{
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QList<LabelModelItem*> selectedList = getSelection();
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foreach ( LabelModelItem *item, selectedList )
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{
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mItemList.removeOne( item );
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}
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/* Move to front of list, representing bottom most item. */
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foreach ( LabelModelItem *item, selectedList )
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{
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mItemList.push_front( item );
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emit itemToBottom( item );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::rotateSelection( double thetaDegs )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->rotate( thetaDegs );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::rotateSelectionLeft()
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{
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rotateSelection( -90.0 );
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}
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void LabelModel::rotateSelectionRight()
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{
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rotateSelection( 90.0 );
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}
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void LabelModel::flipSelectionHoriz()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->flipHoriz();
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::flipSelectionVert()
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->flipVert();
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionLeft()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find left-most edge. */
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double x1_min = 7200; /* Start with a very large value: 7200pts = 100in */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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if ( r.x1() < x1_min ) x1_min = r.x1();
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}
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/* Now adjust the object positions to line up the left edges at left-most edge. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dx = x1_min - r.x1();
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item->setPositionRelative( dx, 0 );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionRight()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find right-most edge. */
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double x1_max = -7200; /* Start with a very large negative value: 7200pts = 100in */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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if ( r.x1() > x1_max ) x1_max = r.x1();
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}
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/* Now adjust the object positions to line up the right edges at right-most edge. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dx = x1_max - r.x1();
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item->setPositionRelative( dx, 0 );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionHCenter()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find average center of objects. */
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double xsum = 0;
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int n = 0;
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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xsum += (r.x1() + r.x2()) / 2.0;
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n++;
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}
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double xavg = xsum / n;
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/* Find item closest to average center of objects. */
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double xcenter = 7200; /* Start with very large value. */
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double dxmin = fabs( xavg - xcenter );
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dx = fabs( xavg - (r.x1() + r.x2())/2.0 );
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if ( dx < dxmin )
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{
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dxmin = dx;
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xcenter = (r.x1() + r.x2()) / 2.0;
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}
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}
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/* Now adjust the object positions to line up with the center of this item. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dx = xcenter - (r.x1() + r.x2())/2.0;
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item->setPositionRelative( dx, 0 );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionTop()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find top-most edge. */
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double y1_min = 7200; /* Start with a very large value: 7200pts = 100in */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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if ( r.y1() < y1_min ) y1_min = r.y1();
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}
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/* Now adjust the object positions to line up the top edges at top-most edge. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dy = y1_min - r.y1();
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item->setPositionRelative( 0, dy );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionBottom()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find bottom-most edge. */
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double y1_max = -7200; /* Start with a very large negative value: 7200pts = 100in */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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if ( r.y1() > y1_max ) y1_max = r.y1();
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}
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/* Now adjust the object positions to line up the bottom edges at bottom-most edge. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dy = y1_max - r.y1();
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item->setPositionRelative( 0, dy );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::alignSelectionVCenter()
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{
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if ( isSelectionEmpty() || isSelectionAtomic() )
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{
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return;
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}
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QList<LabelModelItem*> selectedList = getSelection();
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/* Find average center of objects. */
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double ysum = 0;
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int n = 0;
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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ysum += (r.y1() + r.y2()) / 2.0;
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n++;
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}
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double yavg = ysum / n;
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/* Find item closest to average center of objects. */
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double ycenter = 7200; /* Start with very large value. */
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double dymin = fabs( yavg - ycenter );
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dy = fabs( yavg - (r.y1() + r.y2())/2.0 );
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if ( dy < dymin )
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{
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dymin = dy;
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ycenter = (r.y1() + r.y2()) / 2.0;
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}
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}
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/* Now adjust the object positions to line up with the center of this item. */
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foreach ( LabelModelItem *item, selectedList )
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{
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LabelRegion r = item->getExtent();
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double dy = ycenter - (r.y1() + r.y2())/2.0;
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item->setPositionRelative( 0, dy );
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::centerSelectionHoriz()
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{
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double xLabelCenter = w() / 2.0;
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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LabelRegion r = item->getExtent();
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double xItemCenter = (r.x1() + r.x2()) / 2.0;
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double dx = xLabelCenter - xItemCenter;
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item->setPositionRelative( dx, 0 );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::centerSelectionVert()
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{
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double yLabelCenter = h() / 2.0;
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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LabelRegion r = item->getExtent();
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double yItemCenter = (r.y1() + r.y2()) / 2.0;
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double dy = yLabelCenter - yItemCenter;
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item->setPositionRelative( 0, dy );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::moveSelection( double dx, double dy )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setPositionRelative( dx, dy );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionFontFamily( const QString &fontFamily )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setFontFamily( fontFamily );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionFontSize( double fontSize )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setFontSize( fontSize );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionFontWeight( QFont::Weight fontWeight )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setFontWeight( fontWeight );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionFontItalicFlag( bool fontItalicFlag )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setFontItalicFlag( fontItalicFlag );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionTextHAlign( Qt::Alignment textHAlign )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setTextHAlign( textHAlign );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionTextVAlign( Qt::Alignment textVAlign )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setTextVAlign( textVAlign );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionTextLineSpacing( double textLineSpacing )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setTextLineSpacing( textLineSpacing );
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}
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}
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mModified = true;
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emit changed();
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}
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void LabelModel::setSelectionTextColorNode( ColorNode textColorNode )
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{
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foreach ( LabelModelItem *item, mItemList )
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{
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if ( item->isSelected() )
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{
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item->setTextColorNode( textColorNode );
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}
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}
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mModified = true;
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|
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emit changed();
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}
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void LabelModel::setSelectionLineWidth( double lineWidth )
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|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->setLineWidth( lineWidth );
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|
}
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|
}
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|
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mModified = true;
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|
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|
emit changed();
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|
}
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void LabelModel::setSelectionLineColorNode( ColorNode lineColorNode )
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|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->setLineColorNode( lineColorNode );
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|
}
|
|
}
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|
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|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
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void LabelModel::setSelectionFillColorNode( ColorNode fillColorNode )
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->setFillColorNode( fillColorNode );
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
}
|
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|