Warning, file /office/calligra/libs/flake/KoSnapProxy.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /* This file is part of the KDE project
  * Copyright (C) 2008-2009 Jan Hambrecht <jaham@gmx.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "KoSnapProxy.h"
 #include "KoSnapGuide.h"
 #include "KoCanvasBase.h"
 #include "KoShapeManager.h"
 #include "KoPathShape.h"
 #include "KoPathPoint.h"
 #include <KoSnapData.h>
 
 KoSnapProxy::KoSnapProxy(KoSnapGuide * snapGuide)
         : m_snapGuide(snapGuide)
 {
 }
 
 QVector<QPointF> KoSnapProxy::pointsInRect(const QRectF &rect) const
 {
     QVector<QPointF> result;
     QList<KoShape*> shapes = shapesInRect(rect);
     for (KoShape * shape : shapes) {
         // There exists a problem on msvc with for(each) and QVector<QPointF>
         QVector<QPointF> points(pointsFromShape(shape));
         for (int i = 0; i < points.count(); ++i) {
             const QPointF point(points[i]);
             if (rect.contains(point))
                 result.append(point);
         }
     }
 
     return result;
 }
 
 QList<KoShape*> KoSnapProxy::shapesInRect(const QRectF &rect, bool omitEditedShape) const
 {
     QList<KoShape*> shapes = m_snapGuide->canvas()->shapeManager()->shapesAt(rect);
     for (KoShape * shape : m_snapGuide->ignoredShapes()) {
         int index = shapes.indexOf(shape);
         if (index >= 0)
             shapes.removeAt(index);
     }
     if (! omitEditedShape && m_snapGuide->editedShape()) {
         QRectF bound = m_snapGuide->editedShape()->boundingRect();
         if (rect.intersects(bound) || rect.contains(bound))
             shapes.append(m_snapGuide->editedShape());
     }
     return shapes;
 }
 
 QVector<QPointF> KoSnapProxy::pointsFromShape(KoShape * shape) const
 {
     QVector<QPointF> snapPoints;
     // no snapping to hidden shapes
     if (! shape->isVisible(true))
         return snapPoints;
 
     // return the special snap points of the shape
     snapPoints += shape->snapData().snapPoints();
 
     KoPathShape * path = dynamic_cast<KoPathShape*>(shape);
     if (path) {
         QTransform m = path->absoluteTransformation(0);
 
         QList<KoPathPoint*> ignoredPoints = m_snapGuide->ignoredPathPoints();
 
         int subpathCount = path->subpathCount();
         for (int subpathIndex = 0; subpathIndex < subpathCount; ++subpathIndex) {
             int pointCount = path->subpathPointCount(subpathIndex);
             for (int pointIndex = 0; pointIndex < pointCount; ++pointIndex) {
                 KoPathPoint * p = path->pointByIndex(KoPathPointIndex(subpathIndex, pointIndex));
                 if (! p || ignoredPoints.contains(p))
                     continue;
 
                 snapPoints.append(m.map(p->point()));
             }
         }
     }
     else
     {
         // add the bounding box corners as default snap points
         QRectF bbox = shape->boundingRect();
         snapPoints.append(bbox.topLeft());
         snapPoints.append(bbox.topRight());
         snapPoints.append(bbox.bottomRight());
         snapPoints.append(bbox.bottomLeft());
     }
 
     return snapPoints;
 }
 
 QList<KoPathSegment> KoSnapProxy::segmentsInRect(const QRectF &rect) const
 {
     
     QList<KoShape*> shapes = shapesInRect(rect, true);
     QList<KoPathPoint*> ignoredPoints = m_snapGuide->ignoredPathPoints();
 
     QList<KoPathSegment> segments;
     for (KoShape * shape : shapes) {
         QList<KoPathSegment> shapeSegments;
         QRectF rectOnShape = shape->documentToShape(rect);
         KoPathShape * path = dynamic_cast<KoPathShape*>(shape);
         if (path) {
             shapeSegments = path->segmentsAt(rectOnShape);
         } else {
             for (const KoPathSegment & s : shape->snapData().snapSegments()) {
                 QRectF controlRect = s.controlPointRect();
                 if (! rect.intersects(controlRect) && ! controlRect.contains(rect))
                     continue;
                 QRectF bound = s.boundingRect();
                 if (! rect.intersects(bound) && ! bound.contains(rect))
                     continue;
                 shapeSegments.append(s);
             }
         }
 
         QTransform m = shape->absoluteTransformation(0);
         // transform segments to document coordinates
         for (const KoPathSegment & s : shapeSegments) {
             if (ignoredPoints.contains(s.first()) || ignoredPoints.contains(s.second()))
                 continue;
             segments.append(s.mapped(m));
         }
     }
     return segments;
 }
 
 QList<KoShape*> KoSnapProxy::shapes(bool omitEditedShape) const
 {
     QList<KoShape*> allShapes = m_snapGuide->canvas()->shapeManager()->shapes();
     QList<KoShape*> filteredShapes;
     QList<KoShape*> ignoredShapes = m_snapGuide->ignoredShapes();
 
     // filter all hidden and ignored shapes
     for (KoShape * shape : allShapes) {
         if (! shape->isVisible(true))
             continue;
         if (ignoredShapes.contains(shape))
             continue;
 
         filteredShapes.append(shape);
     }
     if (! omitEditedShape && m_snapGuide->editedShape())
         filteredShapes.append(m_snapGuide->editedShape());
 
     return filteredShapes;
 }
 
 KoCanvasBase * KoSnapProxy::canvas() const
 {
     return m_snapGuide->canvas();
 }