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libs/flake KoSelection.cpp Go to the documentation of this file. /* This file is part of the KDE project Copyright (C) 2006 Boudewijn Rempt <boud@valdyas.org> Copyright (C) 2006 Thorsten Zachmann <zachmann@kde.org> Copyright (C) 2006 Jan Hambrecht <jaham@gmx.net> Copyright (C) 2006-2007,2009 Thomas Zander <zander@kde.org> 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 "KoSelection.h" #include "KoSelection_p.h" #include "KoShapeContainer.h" #include "KoShapeGroup.h" #include "KoPointerEvent.h" #include <QPainter> #include <QTimer> QRectF KoSelectionPrivate::sizeRect() { bool first = true; QRectF bb; QMatrix invSelectionTransform = q->absoluteTransformation(0).inverted(); QRectF bound; if (!selectedShapes.isEmpty()) { QList<KoShape*>::const_iterator it = selectedShapes.constBegin(); for (; it != selectedShapes.constEnd(); ++it) { if (dynamic_cast<KoShapeGroup*>(*it)) continue; const QMatrix shapeTransform = (*it)->absoluteTransformation(0); const QRectF shapeRect(QRectF(QPointF(), (*it)->size())); if (first) { bb = (shapeTransform * invSelectionTransform).mapRect(shapeRect); bound = shapeTransform.mapRect( shapeRect ); first = false; } else { bb = bb.united((shapeTransform * invSelectionTransform).mapRect(shapeRect)); bound = bound.united( shapeTransform.mapRect( shapeRect ) ); } } } globalBound = bound; return bb; } void KoSelectionPrivate::requestSelectionChangedEvent() { if (eventTriggered) return; eventTriggered = true; QTimer::singleShot(0, q, SLOT(selectionChangedEvent())); } void KoSelectionPrivate::selectionChangedEvent() { eventTriggered = false; q->setScale(1, 1); emit q->selectionChanged(); } void KoSelectionPrivate::selectGroupChildren(KoShapeGroup *group) { if (! group) return; foreach(KoShape *shape, group->childShapes()) { if (selectedShapes.contains(shape)) continue; selectedShapes << shape; KoShapeGroup* childGroup = dynamic_cast<KoShapeGroup*>(shape); if (childGroup) selectGroupChildren(childGroup); } } void KoSelectionPrivate::deselectGroupChildren(KoShapeGroup *group) { if (! group) return; foreach(KoShape *shape, group->childShapes()) { if (selectedShapes.contains(shape)) selectedShapes.removeAll(shape); KoShapeGroup* childGroup = dynamic_cast<KoShapeGroup*>(shape); if (childGroup) deselectGroupChildren(childGroup); } } KoSelection::KoSelection() : KoShape(*(new KoSelectionPrivate(this))) { } KoSelection::~KoSelection() { } void KoSelection::paint(QPainter &painter, const KoViewConverter &converter) { Q_UNUSED(painter); Q_UNUSED(converter); } void KoSelection::select(KoShape *shape, bool recursive) { Q_D(KoSelection); Q_ASSERT(shape != this); Q_ASSERT(shape); if (!shape->isSelectable() || !shape->isVisible(true)) return; // save old number of selected shapes uint oldSelectionCount = d->selectedShapes.count(); if (!d->selectedShapes.contains(shape)) d->selectedShapes << shape; // automatically recursively select all child shapes downwards in the hierarchy KoShapeGroup* group = dynamic_cast<KoShapeGroup*>(shape); if (group) d->selectGroupChildren(group); if (recursive) { // recursively select all parents and their children upwards the hierarchy KoShapeContainer *parent = shape->parent(); while (parent) { KoShapeGroup *parentGroup = dynamic_cast<KoShapeGroup*>(parent); if (! parentGroup) break; if (! d->selectedShapes.contains(parentGroup)) { d->selectedShapes << parentGroup; d->selectGroupChildren(parentGroup); } parent = parentGroup->parent(); } } if (d->selectedShapes.count() == 1) { setTransformation(shape->absoluteTransformation(0)); updateSizeAndPosition(); } else { // reset global bound if there were no shapes selected before if( ! oldSelectionCount ) d->globalBound = QRectF(); setTransformation(QMatrix()); // we are resetting the transformation here anyway, // so we can just add the newly selected shapes to the bounding box // in document coordinates and then use that size and position uint newSelectionCount = d->selectedShapes.count(); for( uint i = oldSelectionCount; i < newSelectionCount; ++i ) { KoShape * shape = d->selectedShapes[i]; const QMatrix shapeTransform = shape->absoluteTransformation(0); const QRectF shapeRect(QRectF(QPointF(), shape->size())); d->globalBound = d->globalBound.united( shapeTransform.mapRect( shapeRect ) ); } setSize(d->globalBound.size()); setPosition(d->globalBound.topLeft()); } d->requestSelectionChangedEvent(); } void KoSelection::deselect(KoShape *shape, bool recursive) { Q_D(KoSelection); if (! d->selectedShapes.contains(shape)) return; d->selectedShapes.removeAll(shape); KoShapeGroup *group = dynamic_cast<KoShapeGroup*>(shape); if (recursive) { // recursively find the top group upwards int the hierarchy KoShapeGroup *parentGroup = dynamic_cast<KoShapeGroup*>(shape->parent()); while (parentGroup) { group = parentGroup; parentGroup = dynamic_cast<KoShapeGroup*>(parentGroup->parent()); } } if (group) d->deselectGroupChildren(group); if (count() == 1) setTransformation(firstSelectedShape()->absoluteTransformation(0)); updateSizeAndPosition(); d->requestSelectionChangedEvent(); } void KoSelection::deselectAll() { Q_D(KoSelection); // reset the transformation matrix of the selection setTransformation(QMatrix()); if (d->selectedShapes.isEmpty()) return; d->selectedShapes.clear(); d->requestSelectionChangedEvent(); } int KoSelection::count() const { Q_D(const KoSelection); int count = 0; foreach(KoShape *shape, d->selectedShapes) if (dynamic_cast<KoShapeGroup*>(shape) == 0) ++count; return count; } bool KoSelection::hitTest(const QPointF &position) const { Q_D(const KoSelection); if (count() > 1) { QRectF bb(boundingRect()); return bb.contains(position); } else if (count() == 1) return (*d->selectedShapes.begin())->hitTest(position); else // count == 0 return false; } void KoSelection::updateSizeAndPosition() { Q_D(KoSelection); QRectF bb = d->sizeRect(); QMatrix matrix = absoluteTransformation(0); setSize(bb.size()); QPointF p = matrix.map(bb.topLeft() + matrix.inverted().map(position())); setPosition(p); } QRectF KoSelection::boundingRect() const { return absoluteTransformation(0).mapRect(QRectF(QPointF(), size())); } const QList<KoShape*> KoSelection::selectedShapes(KoFlake::SelectionType strip) const { Q_D(const KoSelection); QList<KoShape*> answer; // strip the child objects when there is also a parent included. bool doStripping = strip == KoFlake::StrippedSelection; foreach(KoShape *shape, d->selectedShapes) { KoShapeContainer *container = shape->parent(); if (strip != KoFlake::TopLevelSelection && dynamic_cast<KoShapeGroup*>(shape)) // since a KoShapeGroup // guarentees all its children are selected at the same time as itself // is selected we will only return its children. continue; bool add = true; while (doStripping && add && container) { if (dynamic_cast<KoShapeGroup*>(container) == 0 && d->selectedShapes.contains(container)) add = false; container = container->parent(); } if (strip == KoFlake::TopLevelSelection && container && d->selectedShapes.contains(container)) add = false; if (add) answer << shape; } return answer; } bool KoSelection::isSelected(const KoShape *shape) const { Q_D(const KoSelection); if (shape == this) return true; foreach (KoShape *s, d->selectedShapes) { if (s == shape) return true; } return false; } KoShape *KoSelection::firstSelectedShape(KoFlake::SelectionType strip) const { QList<KoShape*> set = selectedShapes(strip); if (set.isEmpty()) return 0; return *(set.begin()); } void KoSelection::setActiveLayer(KoShapeLayer* layer) { Q_D(KoSelection); d->activeLayer = layer; emit currentLayerChanged(layer); } KoShapeLayer* KoSelection::activeLayer() const { Q_D(const KoSelection); return d->activeLayer; } void KoSelection::saveOdf(KoShapeSavingContext &) const { } bool KoSelection::loadOdf(const KoXmlElement &, KoShapeLoadingContext &) { return true; } #include "KoSelection.moc" libs/flake Skip menu "libs/flake" Main Page Namespace List Class Hierarchy Alphabetical List Class List File List Namespace Members Class Members API Reference Skip menu "API Reference" kdgantt Kexi   KoProperty   flake kplato krita   image   plugins       libbrush       libpaintop   ui kspread   part     scripting libs   flake   kotext   main   pigment   store   musicshape Generated for API Reference by doxygen 1.5.9-20090814 This website is maintained by Adriaan de Groot and Allen Winter. 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