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https://github.com/qelectrotech/qelectrotech-source-mirror.git
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822da4fe66
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3432 bfdf4180-ca20-0410-9c96-a3a8aa849046
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/*
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Copyright 2006-2014 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech 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 2 of the License, or
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(at your option) any later version.
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QElectroTech 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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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qgraphicsitemutility.h"
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#include "element.h"
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#include "diagram.h"
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#include <QGraphicsItem>
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#include <QDebug>
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/**
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* @brief centerToParentBottom
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* Center the item at the bottom of is parent.
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* @param item item to center
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* @return true if centered else false (item have not parent)
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*/
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bool centerToParentBottom(QGraphicsItem *item) {
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if (! item->parentItem()) {
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qDebug() << "Qet::centerToParentBottom : item have not parent";
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return false;
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}
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QPointF p = item -> parentItem() -> boundingRect().center();
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p.ry() += item -> parentItem() -> boundingRect().height()/2;
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p.rx() -= (item -> boundingRect().width()/2 + item->boundingRect().left()); //< we add boundingrect.left because this value can be négative
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item -> setPos(p);
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return true;
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}
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/**
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* @brief centerToBottomDiagram
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* Set item pos to the bottom of diagram and centered vertically to element_to_follow
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* @param item_to_center
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* @param element_to_follow
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* @return true if element is centered else false (element_to_follow have not diagram)
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*/
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bool centerToBottomDiagram (QGraphicsItem *item_to_center, Element *element_to_follow) {
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if (! element_to_follow -> diagram()) {
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qDebug() << "qgraphicsitemutility centerAtBottomDiagram : Element_to_follow have not diagram";
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return false;
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}
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QRectF border = element_to_follow -> diagram() -> border();
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QPointF point = element_to_follow -> sceneBoundingRect().center();
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point.setY(border.height() -
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element_to_follow -> diagram() -> border_and_titleblock.titleBlockHeight() -
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item_to_center -> boundingRect().height());
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point.rx() -= (item_to_center -> boundingRect().width()/2 +
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item_to_center -> boundingRect().left()); //< we add boundingrect.left because this value can be négative
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item_to_center -> setPos(0,0); //Due to a weird behavior or bug, before set the new position and rotation,
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item_to_center -> setRotation(0); //we must to set the position and rotation at 0.
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item_to_center -> setPos(item_to_center -> mapFromScene(point));
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if (item_to_center -> rotation() != - element_to_follow -> rotation()) {
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item_to_center -> setRotation(0);
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item_to_center -> setRotation(- element_to_follow -> rotation());
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}
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return true;
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}
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