Jim Evins
675 lines
12 KiB
C++
675 lines
12 KiB
C++
/* LabelModel.cpp
|
|
*
|
|
* Copyright (C) 2013 Jim Evins <evins@snaught.com>
|
|
*
|
|
* This file is part of gLabels-qt.
|
|
*
|
|
* gLabels-qt is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* gLabels-qt is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with gLabels-qt. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "LabelModel.h"
|
|
|
|
#include <cmath>
|
|
|
|
|
|
namespace glabels
|
|
{
|
|
|
|
/**
|
|
* Default constructor.
|
|
*/
|
|
LabelModel::LabelModel() : mModified(true)
|
|
{
|
|
}
|
|
|
|
|
|
/**
|
|
* Add item.
|
|
*/
|
|
void LabelModel::addItem( LabelModelItem *item )
|
|
{
|
|
item->setParent( this );
|
|
mItemList << item;
|
|
|
|
connect( item, SIGNAL(changed()), this, SLOT(itemChanged(LabelModelItem*)) );
|
|
connect( item, SIGNAL(moved()), this, SLOT(itemMoved(LabelModelItem*)) );
|
|
|
|
mModified = true;
|
|
|
|
emit itemAdded( item );
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::itemChanged( LabelModelItem *item )
|
|
{
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::itemMoved( LabelModelItem *item )
|
|
{
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::deleteItem( LabelModelItem *item )
|
|
{
|
|
item->unselect();
|
|
mItemList.removeOne( item );
|
|
|
|
disconnect( item, 0, this, 0 );
|
|
|
|
mModified = true;
|
|
|
|
emit itemDeleted( item );
|
|
emit changed();
|
|
}
|
|
|
|
|
|
/**
|
|
* Select item.
|
|
*/
|
|
void LabelModel::selectItem( LabelModelItem *item )
|
|
{
|
|
item->select();
|
|
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
/**
|
|
* Unselect item.
|
|
*/
|
|
void LabelModel::unselectItem( LabelModelItem *item )
|
|
{
|
|
item->unselect();
|
|
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
/**
|
|
* Select all items.
|
|
*/
|
|
void LabelModel::selectAll()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
item->select();
|
|
}
|
|
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
/**
|
|
* Unselect item all items.
|
|
*/
|
|
void LabelModel::unselectAll()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
item->unselect();
|
|
}
|
|
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
void LabelModel::selectRegion( const LabelRegion ®ion )
|
|
{
|
|
double rX1 = std::min( region.x1(), region.x2() );
|
|
double rY1 = std::min( region.y1(), region.y2() );
|
|
double rX2 = std::max( region.x1(), region.x2() );
|
|
double rY2 = std::max( region.y1(), region.y2() );
|
|
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
LabelRegion itemExtent = item->getExtent();
|
|
|
|
if ( (itemExtent.x1() >= rX1) &&
|
|
(itemExtent.x2() <= rX2) &&
|
|
(itemExtent.y1() >= rY1) &&
|
|
(itemExtent.y2() <= rY2) )
|
|
{
|
|
item->select();
|
|
}
|
|
}
|
|
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
bool LabelModel::isSelectionEmpty()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool LabelModel::isSelectionAtomic()
|
|
{
|
|
int nSelected = 0;
|
|
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
nSelected++;
|
|
if ( nSelected > 1 )
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return (nSelected == 1);
|
|
}
|
|
|
|
|
|
QList<LabelModelItem *> LabelModel::getSelection()
|
|
{
|
|
QList<LabelModelItem*> selectedList;
|
|
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
selectedList << item;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
LabelModelItem *LabelModel::getFirstSelectedItem()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
return item;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool LabelModel::canSelectionText()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() && item->canText() )
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool LabelModel::canSelectionFill()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() && item->canFill() )
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool LabelModel::canSelectionLineColor()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() && item->canLineColor() )
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool LabelModel::canSelectionLineWidth()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() && item->canLineWidth() )
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
void LabelModel::deleteSelection()
|
|
{
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
deleteItem( item );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
emit selectionChanged();
|
|
}
|
|
|
|
|
|
void LabelModel::raiseSelectionToTop()
|
|
{
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
mItemList.removeOne( item );
|
|
}
|
|
|
|
/* Move to end of list, representing top most item. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
mItemList.push_back( item );
|
|
emit itemToTop( item );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::lowerSelectionToBottom()
|
|
{
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
mItemList.removeOne( item );
|
|
}
|
|
|
|
/* Move to front of list, representing bottom most item. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
mItemList.push_front( item );
|
|
emit itemToBottom( item );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::rotateSelection( double thetaDegs )
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->rotate( thetaDegs );
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::rotateSelectionLeft()
|
|
{
|
|
rotateSelection( -90.0 );
|
|
}
|
|
|
|
|
|
void LabelModel::rotateSelectionRight()
|
|
{
|
|
rotateSelection( 90.0 );
|
|
}
|
|
|
|
|
|
void LabelModel::flipSelectionHoriz()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->flipHoriz();
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::flipSelectionVert()
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->flipVert();
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionLeft()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find left-most edge. */
|
|
double x1_min = 7200; /* Start with a very large value: 7200pts = 100in */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
if ( r.x1() < x1_min ) x1_min = r.x1();
|
|
}
|
|
|
|
/* Now adjust the object positions to line up the left edges at left-most edge. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dx = x1_min - r.x1();
|
|
item->setPositionRelative( dx, 0 );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionRight()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find right-most edge. */
|
|
double x1_max = -7200; /* Start with a very large negative value: 7200pts = 100in */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
if ( r.x1() > x1_max ) x1_max = r.x1();
|
|
}
|
|
|
|
/* Now adjust the object positions to line up the right edges at right-most edge. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dx = x1_max - r.x1();
|
|
item->setPositionRelative( dx, 0 );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionHCenter()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find average center of objects. */
|
|
double xsum = 0;
|
|
int n = 0;
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
xsum += (r.x1() + r.x2()) / 2.0;
|
|
n++;
|
|
}
|
|
double xavg = xsum / n;
|
|
|
|
/* Find item closest to average center of objects. */
|
|
double xcenter = 7200; /* Start with very large value. */
|
|
double dxmin = fabs( xavg - xcenter );
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dx = fabs( xavg - (r.x1() + r.x2())/2.0 );
|
|
if ( dx < dxmin )
|
|
{
|
|
dxmin = dx;
|
|
xcenter = (r.x1() + r.x2()) / 2.0;
|
|
}
|
|
}
|
|
|
|
/* Now adjust the object positions to line up with the center of this item. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dx = xcenter - (r.x1() + r.x2())/2.0;
|
|
item->setPositionRelative( dx, 0 );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionTop()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find top-most edge. */
|
|
double y1_min = 7200; /* Start with a very large value: 7200pts = 100in */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
if ( r.y1() < y1_min ) y1_min = r.y1();
|
|
}
|
|
|
|
/* Now adjust the object positions to line up the top edges at top-most edge. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dy = y1_min - r.y1();
|
|
item->setPositionRelative( 0, dy );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionBottom()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find bottom-most edge. */
|
|
double y1_max = -7200; /* Start with a very large negative value: 7200pts = 100in */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
if ( r.y1() > y1_max ) y1_max = r.y1();
|
|
}
|
|
|
|
/* Now adjust the object positions to line up the bottom edges at bottom-most edge. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dy = y1_max - r.y1();
|
|
item->setPositionRelative( 0, dy );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::alignSelectionVCenter()
|
|
{
|
|
if ( isSelectionEmpty() || isSelectionAtomic() )
|
|
{
|
|
return;
|
|
}
|
|
|
|
QList<LabelModelItem*> selectedList = getSelection();
|
|
|
|
/* Find average center of objects. */
|
|
double ysum = 0;
|
|
int n = 0;
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
ysum += (r.y1() + r.y2()) / 2.0;
|
|
n++;
|
|
}
|
|
double yavg = ysum / n;
|
|
|
|
/* Find item closest to average center of objects. */
|
|
double ycenter = 7200; /* Start with very large value. */
|
|
double dymin = fabs( yavg - ycenter );
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dy = fabs( yavg - (r.y1() + r.y2())/2.0 );
|
|
if ( dy < dymin )
|
|
{
|
|
dymin = dy;
|
|
ycenter = (r.y1() + r.y2()) / 2.0;
|
|
}
|
|
}
|
|
|
|
/* Now adjust the object positions to line up with the center of this item. */
|
|
foreach ( LabelModelItem *item, selectedList )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double dy = ycenter - (r.y1() + r.y2())/2.0;
|
|
item->setPositionRelative( 0, dy );
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::centerSelectionHoriz()
|
|
{
|
|
double xLabelCenter = w() / 2.0;
|
|
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double xItemCenter = (r.x1() + r.x2()) / 2.0;
|
|
double dx = xLabelCenter - xItemCenter;
|
|
item->setPositionRelative( dx, 0 );
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::centerSelectionVert()
|
|
{
|
|
double yLabelCenter = h() / 2.0;
|
|
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
LabelRegion r = item->getExtent();
|
|
double yItemCenter = (r.y1() + r.y2()) / 2.0;
|
|
double dy = yLabelCenter - yItemCenter;
|
|
item->setPositionRelative( 0, dy );
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
|
|
void LabelModel::moveSelection( double dx, double dy )
|
|
{
|
|
foreach ( LabelModelItem *item, mItemList )
|
|
{
|
|
if ( item->isSelected() )
|
|
{
|
|
item->setPositionRelative( dx, dy );
|
|
}
|
|
}
|
|
|
|
mModified = true;
|
|
|
|
emit changed();
|
|
}
|
|
|
|
}
|
|
|