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Element editor : move all graphics part in a single directory
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3628 bfdf4180-ca20-0410-9c96-a3a8aa849046
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blacksun
230
sources/editor/graphicspart/partarc.cpp
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230
sources/editor/graphicspart/partarc.cpp
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/*
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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 "partarc.h"
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/**
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Constructeur
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@param editor L'editeur d'element concerne
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@param parent Le QGraphicsItem parent de cet arc
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@param scene La scene sur laquelle figure cet arc
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*/
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PartArc::PartArc(QETElementEditor *editor, QGraphicsItem *parent, QGraphicsScene *scene) :
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CustomElementGraphicPart(editor),
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QGraphicsEllipseItem(parent, scene),
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_angle(-90),
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start_angle(0)
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{
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setFlags(QGraphicsItem::ItemIsSelectable);
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#if QT_VERSION >= 0x040600
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setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
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#endif
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setAcceptedMouseButtons(Qt::LeftButton);
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}
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/// Destructeur
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PartArc::~PartArc() {
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}
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/**
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Dessine l'arc de cercle
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@param painter QPainter a utiliser pour rendre le dessin
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@param options Options pour affiner le rendu
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@param widget Widget sur lequel le rendu est effectue
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*/
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void PartArc::paint(QPainter *painter, const QStyleOptionGraphicsItem *options, QWidget *widget) {
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Q_UNUSED(widget);
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applyStylesToQPainter(*painter);
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// enleve systematiquement la couleur de fond
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painter -> setBrush(Qt::NoBrush);
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QPen t = painter -> pen();
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t.setCosmetic(options && options -> levelOfDetail < 1.0);
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painter -> setPen(t);
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if (isSelected()) {
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// dessine l'ellipse en noir
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painter -> drawEllipse(rect());
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// dessine l'arc en rouge
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t.setColor(Qt::red);
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painter -> setPen(t);
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}
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painter -> drawArc(rect(), start_angle * 16, _angle * 16);
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if (isSelected()) {
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// dessine la croix au centre de l'ellipse
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painter -> setRenderHint(QPainter::Antialiasing, false);
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painter -> setPen((painter -> brush().color() == QColor(Qt::black) && painter -> brush().isOpaque()) ? Qt::yellow : Qt::blue);
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QPointF center = rect().center();
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painter -> drawLine(QLineF(center.x() - 2.0, center.y(), center.x() + 2.0, center.y()));
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painter -> drawLine(QLineF(center.x(), center.y() - 2.0, center.x(), center.y() + 2.0));
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}
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}
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/**
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Exporte l'arc de cercle en XML
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@param xml_document Document XML a utiliser pour creer l'element XML
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@return un element XML decrivant l'arc de cercle
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*/
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const QDomElement PartArc::toXml(QDomDocument &xml_document) const {
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QDomElement xml_element = xml_document.createElement("arc");
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QPointF top_left(sceneTopLeft());
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xml_element.setAttribute("x", QString("%1").arg(top_left.x()));
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xml_element.setAttribute("y", QString("%1").arg(top_left.y()));
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xml_element.setAttribute("width", QString("%1").arg(rect().width()));
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xml_element.setAttribute("height", QString("%1").arg(rect().height()));
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xml_element.setAttribute("start", QString("%1").arg(start_angle));
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xml_element.setAttribute("angle", QString("%1").arg(_angle));
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stylesToXml(xml_element);
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return(xml_element);
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}
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/**
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Importe les proprietes d'un arc de cercle depuis un element XML
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@param qde Element XML a lire
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*/
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void PartArc::fromXml(const QDomElement &qde) {
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stylesFromXml(qde);
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setRect(
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QRectF(
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mapFromScene(
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qde.attribute("x", "0").toDouble(),
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qde.attribute("y", "0").toDouble()
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),
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QSizeF(
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qde.attribute("width", "0").toDouble(),
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qde.attribute("height", "0").toDouble()
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)
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)
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);
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setStartAngle(qde.attribute("start", "0").toInt());
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setAngle(qde.attribute("angle", "-90").toInt());
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}
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/**
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@return le coin superieur gauche du rectangle dans lequel s'inscrit
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l'ellipse dont fait partie cet arc, dans les coordonnees de la scene.
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*/
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QPointF PartArc::sceneTopLeft() const {
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return(mapToScene(rect().topLeft()));
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}
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/**
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* @brief PartArc::setX
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* @param x is the center of the rect bounding this ellipse
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*/
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void PartArc::setX(const qreal x) {
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QRectF current_rect = rect();
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QPointF current_pos = mapToScene(current_rect.center());
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setRect(current_rect.translated(x - current_pos.x(), 0.0));
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}
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/**
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* @brief PartArc::setY
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* @param y is the center of the rect bounding this ellipse
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*/
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void PartArc::setY(const qreal y) {
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QRectF current_rect = rect();
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QPointF current_pos = mapToScene(current_rect.center());
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setRect(current_rect.translated(0.0, y - current_pos.y()));
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}
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/**
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* @brief PartArc::setWidth
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* @param w is the width of the rect bounding this ellipse
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*/
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void PartArc::setWidth(const qreal w) {
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qreal new_width = qAbs(w);
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QRectF current_rect = rect();
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current_rect.translate((new_width - current_rect.width()) / -2.0, 0.0);
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current_rect.setWidth(new_width);
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setRect(current_rect);
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}
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/**
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* @brief PartArc::setHeight
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* @param h is the heigth of the rect bounding this ellipse
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*/
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void PartArc::setHeight(const qreal h) {
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qreal new_height = qAbs(h);
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QRectF current_rect = rect();
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current_rect.translate(0.0, (new_height - current_rect.height()) / -2.0);
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current_rect.setHeight(new_height);
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setRect(current_rect);
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}
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/**
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Gere les changements intervenant sur cette partie
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@param change Type de changement
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@param value Valeur numerique relative au changement
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*/
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QVariant PartArc::itemChange(GraphicsItemChange change, const QVariant &value) {
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if (scene()) {
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if (change == QGraphicsItem::ItemPositionChange || change == QGraphicsItem::ItemPositionHasChanged) {
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updateCurrentPartEditor();
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}
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}
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return(QGraphicsEllipseItem::itemChange(change, value));
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}
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/**
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@return true si cette partie n'est pas pertinente et ne merite pas d'etre
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conservee / enregistree.
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Un arc est pertinent des lors que ses dimensions et son etendue ne sont
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pas nulles.
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*/
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bool PartArc::isUseless() const {
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return(rect().isNull() || !angle());
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}
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/**
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@return the minimum, margin-less rectangle this part can fit into, in scene
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coordinates. It is different from boundingRect() because it is not supposed
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to imply any margin, and it is different from shape because it is a regular
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rectangle, not a complex shape.
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*/
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QRectF PartArc::sceneGeometricRect() const {
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return(mapToScene(rect()).boundingRect());
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}
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/**
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Start the user-induced transformation, provided this primitive is contained
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within the \a initial_selection_rect bounding rectangle.
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*/
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void PartArc::startUserTransformation(const QRectF &initial_selection_rect) {
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Q_UNUSED(initial_selection_rect)
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saved_points_.clear();
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saved_points_ << mapToScene(rect().topLeft()) << mapToScene(rect().bottomRight());
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}
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/**
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Handle the user-induced transformation from \a initial_selection_rect to \a new_selection_rect
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*/
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void PartArc::handleUserTransformation(const QRectF &initial_selection_rect, const QRectF &new_selection_rect) {
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QList<QPointF> mapped_points = mapPoints(initial_selection_rect, new_selection_rect, saved_points_);
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setRect(QRectF(mapFromScene(mapped_points.at(0)), mapFromScene(mapped_points.at(1))));
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}
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/**
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@return le rectangle delimitant cette partie.
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*/
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QRectF PartArc::boundingRect() const {
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qreal adjust = 1.5;
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QRectF r(QGraphicsEllipseItem::boundingRect().normalized());
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r.adjust(-adjust, -adjust, adjust, adjust);
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return(r);
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}
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