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Desactivation temporaire de l'edition des conducteurs par les points de jonction ; Implementation de l'edition des conducteurs par des points de saisie situes en leur milieu
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@54 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
287
conducer.cpp
287
conducer.cpp
@@ -1,5 +1,6 @@
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#include <QtDebug>
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#include "conducer.h"
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#include "conducersegment.h"
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#include "element.h"
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bool Conducer::pen_and_brush_initialized = false;
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@@ -36,6 +37,7 @@ Conducer::Conducer(Terminal *p1, Terminal* p2, Element *parent, QGraphicsScene *
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pen_and_brush_initialized = true;
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}
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// calcul du rendu du conducteur
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segments = NULL;
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priv_calculeConducer(terminal1 -> amarrageConducer(), terminal1 -> orientation(), terminal2 -> amarrageConducer(), terminal2 -> orientation());
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setFlags(QGraphicsItem::ItemIsSelectable);
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}
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@@ -47,7 +49,7 @@ Conducer::Conducer(Terminal *p1, Terminal* p2, Element *parent, QGraphicsScene *
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void Conducer::update(const QRectF &rect) {
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// utilise soit la fonction priv_modifieConducteur soit la fonction priv_calculeConducteur
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void (Conducer::* fonction_update) (const QPointF &, Terminal::Orientation, const QPointF &, Terminal::Orientation);
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fonction_update = (points.count() && modified_path) ? &Conducer::priv_modifieConducer : &Conducer::priv_calculeConducer;
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fonction_update = (nbSegments() && modified_path) ? &Conducer::priv_modifieConducer : &Conducer::priv_calculeConducer;
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// appelle la bonne fonction pour calculer l'aspect du conducteur
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(this ->* fonction_update)(
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@@ -76,7 +78,7 @@ void Conducer::updateWithNewPos(const QRectF &rect, const Terminal *b, const QPo
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p1 = terminal1 -> amarrageConducer();
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p2 = terminal2 -> amarrageConducer();
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}
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if (points.count() && modified_path)
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if (nbSegments() && modified_path)
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priv_modifieConducer(p1, terminal1 -> orientation(), p2, terminal2 -> orientation());
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else
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priv_calculeConducer(p1, terminal1 -> orientation(), p2, terminal2 -> orientation());
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@@ -86,15 +88,27 @@ void Conducer::updateWithNewPos(const QRectF &rect, const Terminal *b, const QPo
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/**
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Genere le QPainterPath a partir de la liste des points
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*/
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void Conducer::pointsToPath() {
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void Conducer::segmentsToPath() {
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// chemin qui sera dessine
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QPainterPath path;
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bool moveto_done = false;
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foreach(QPointF point, points) {
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if (!moveto_done) {
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path.moveTo(point);
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moveto_done = true;
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} else path.lineTo(point);
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// s'il n'y a pa des segments, on arrete la
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if (segments == NULL) setPath(path);
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// demarre le chemin
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path.moveTo(segments -> firstPoint());
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// parcourt les segments pour dessiner le chemin
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ConducerSegment *segment = segments;
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while(segment -> hasNextSegment()) {
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path.lineTo(segment -> secondPoint());
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segment = segment -> nextSegment();
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}
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// termine le chemin
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path.lineTo(segment -> secondPoint());
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// affecte le chemin au conducteur
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setPath(path);
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}
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@@ -106,7 +120,7 @@ void Conducer::pointsToPath() {
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@param o2 Orientation de la borne 2
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*/
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void Conducer::priv_modifieConducer(const QPointF &p1, Terminal::Orientation, const QPointF &p2, Terminal::Orientation) {
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Q_ASSERT_X(points.count() > 1, "priv_modifieConducer", "pas de points a modifier");
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Q_ASSERT_X(nbSegments() > 1, "priv_modifieConducer", "pas de points a modifier");
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// recupere les dernieres coordonnees connues des bornes
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QPointF old_p1 = mapFromScene(terminal1 -> amarrageConducer());
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@@ -130,7 +144,8 @@ void Conducer::priv_modifieConducer(const QPointF &p1, Terminal::Orientation, co
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// genere les nouveaux points
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int limite = moves_x.size() - 1;
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int coeff = type_trajet_x ? 1 : -1;
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points.clear();
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QList<QPointF> points;
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points << (type_trajet_x ? new_p1 : new_p2);
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for (int i = 0 ; i < limite ; ++ i) {
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QPointF previous_point = points.last();
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@@ -140,8 +155,8 @@ void Conducer::priv_modifieConducer(const QPointF &p1, Terminal::Orientation, co
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);
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}
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points << (type_trajet_x ? new_p2 : new_p1);
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pointsToPath();
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pointsToSegments(points);
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segmentsToPath();
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}
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/**
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@@ -154,7 +169,10 @@ void Conducer::priv_modifieConducer(const QPointF &p1, Terminal::Orientation, co
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void Conducer::priv_calculeConducer(const QPointF &p1, Terminal::Orientation o1, const QPointF &p2, Terminal::Orientation o2) {
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QPointF sp1, sp2, depart, newp1, newp2, arrivee, depart0, arrivee0;
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Terminal::Orientation ori_depart, ori_arrivee;
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points.clear();
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// s'assure qu'il n'y a ni points
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QList<QPointF> points;
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type_trajet_x = p1.x() < p2.x();
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// mappe les points par rapport a la scene
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sp1 = mapFromScene(p1);
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@@ -230,7 +248,8 @@ void Conducer::priv_calculeConducer(const QPointF &p1, Terminal::Orientation o1,
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// prolongement de la borne d'arrivee
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points << arrivee0;
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pointsToPath();
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pointsToSegments(points);
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segmentsToPath();
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}
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/**
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@@ -272,7 +291,6 @@ void Conducer::paint(QPainter *qp, const QStyleOptionGraphicsItem */*qsogi*/, QW
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// affectation du QPen et de la QBrush modifies au QPainter
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qp -> setBrush(conducer_brush);
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//qp -> setBrush(Qt::green);
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qp -> setPen(conducer_pen);
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if (isSelected()) {
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QPen tmp = qp -> pen();
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@@ -286,9 +304,25 @@ void Conducer::paint(QPainter *qp, const QStyleOptionGraphicsItem */*qsogi*/, QW
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// dessin des points d'accroche du conducteur si celui-ci est selectionne
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if (isSelected()) {
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qp -> setRenderHint(QPainter::Antialiasing, true);
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QList<QPointF> points = segmentsToPoints();
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QPointF previous_point;
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QBrush square_brush(Qt::darkGreen);
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for (int i = 1 ; i < (points.size() -1) ; ++ i) {
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QPointF point = points.at(i);
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if (i > 1) {
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qp -> fillRect(
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QRectF(
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((previous_point.x() + point.x()) / 2.0 ) - 2.5,
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((previous_point.y() + point.y()) / 2.0 ) - 2.5,
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5.0,
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5.0
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),
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square_brush
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);
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}
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qp -> drawEllipse(QRectF(point.x() - 3.0, point.y() - 3.0, 6.0, 6.0));
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previous_point = point;
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}
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}
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qp -> restore();
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@@ -364,20 +398,29 @@ bool Conducer::valideXml(QDomElement &e){
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void Conducer::mousePressEvent(QGraphicsSceneMouseEvent *e) {
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// clic gauche
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if (e -> buttons() & Qt::LeftButton) {
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// recupere les coordonnees du clic
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press_point = mapFromScene(e -> pos());
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moving_point = false;
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for (int i = 1 ; i < points.count() ; ++ i) {
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QPointF point = points.at(i);
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if (
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press_point.x() >= point.x() - 5.0 &&\
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press_point.x() < point.x() + 5.0 &&\
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press_point.y() >= point.y() - 5.0 &&\
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press_point.y() < point.y() + 5.0
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) {
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/*
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parcourt les segments pour determiner si le clic a eu lieu
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- sur l'extremite d'un segment
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- sur le milieu d'un segment
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- ailleurs
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*/
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ConducerSegment *segment = segments;
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while (segment -> hasNextSegment()) {
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if (hasClickedOn(press_point, segment -> secondPoint())) {
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moving_point = true;
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moved_point = i;
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moving_segment = false;
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moved_segment = segment;
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break;
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} else if (hasClickedOn(press_point, segment -> middle())) {
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moving_point = false;
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moving_segment = true;
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moved_segment = segment;
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break;
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}
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segment = segment -> nextSegment();
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}
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}
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QGraphicsPathItem::mousePressEvent(e);
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@@ -398,103 +441,39 @@ void Conducer::mousePressEvent(QGraphicsSceneMouseEvent *e) {
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void Conducer::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
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// clic gauche
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if (e -> buttons() & Qt::LeftButton) {
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// position pointee par la souris
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qreal mouse_x = e -> pos().x();
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qreal mouse_y = e -> pos().y();
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if (moving_point) {
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/* recuperation de quelques joyeusetes tres souvent consultees */
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// indice du dernier point ( = point non modifiable)
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int ind_max_point = points.count() - 1;
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// la modification par points revient bientot
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/*
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// position precedente du point
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QPointF p = points.at(moved_point);
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QPointF p = moved_segment -> secondPoint();
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qreal p_x = p.x();
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qreal p_y = p.y();
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// position pointee par la souris
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qreal mouse_x = e -> pos().x();
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qreal mouse_y = e -> pos().y();
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// position du point apres le deplacement
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qreal new_pos_x;
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qreal new_pos_y;
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if (moved_point == 1 || moved_point == ind_max_point - 1) {
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/* premier et dernier points modifiables du conducteur */
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// repere le point qui va imposer la contrainte de base
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int ind_depend = moved_point == 1 ? 0 : ind_max_point;
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qreal depend_x = points.at(ind_depend).x();
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qreal depend_y = points.at(ind_depend).y();
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// repere le point voisin suivant
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int ind_voisin = moved_point == 1 ? 2 : moved_point - 1;
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qreal voisin_x = points.at(ind_voisin).x();
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qreal voisin_y = points.at(ind_voisin).y();
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if (p_x == depend_x && p_y != depend_y) {
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// deplacements limites a l'axe vertical
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new_pos_x = p_x;
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// si on peut aller plus loin que le point voisin suivant, on le fait... en deplacant le point voisin
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if (p_x > voisin_x - 1 && p_x < voisin_x + 1) new_pos_y = conducer_bound(mouse_y, depend_y, voisin_y);
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else {
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new_pos_y = conducer_bound(mouse_y, depend_y, depend_y < voisin_y);
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points.replace(ind_voisin, QPointF(voisin_x, new_pos_y));
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}
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} else {
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// deplacements limites a l'axe horizontal
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// si on peut aller plus loin que le point voisin suivant, on le fait... en deplacant le point voisin
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if (p_y > voisin_y - 1 && p_y < voisin_y + 1) new_pos_x = conducer_bound(mouse_x, depend_x, voisin_x);
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else {
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new_pos_x = conducer_bound(mouse_x, depend_x, depend_x < voisin_x);
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points.replace(ind_voisin, QPointF(new_pos_x, voisin_y));
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}
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new_pos_y = p_y;
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}
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} else {
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/* autres points */
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new_pos_x = mouse_x;
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new_pos_y = mouse_y;
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/* deplace les deux points voisins (sans cela, le deplacement du point n'est pas possible) */
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// point precedent
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int ind_point_precedent = moved_point - 1;
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qreal pp_x = points.at(ind_point_precedent).x();
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qreal pp_y = points.at(ind_point_precedent).y();
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if (ind_point_precedent != 1) {
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if (pp_x > p_x - 1 && pp_x < p_x + 1) {
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points.replace(ind_point_precedent, QPointF(new_pos_x, pp_y));
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} else {
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points.replace(ind_point_precedent, QPointF(pp_x, new_pos_y));
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}
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} else {
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if (pp_x > p_x - 1 && pp_x < p_x + 1) {
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new_pos_x = p_x;
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} else {
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new_pos_y = p_y;
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}
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}
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// point suivant
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int ind_point_suivant = moved_point + 1;
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qreal ps_x = points.at(ind_point_suivant).x();
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qreal ps_y = points.at(ind_point_suivant).y();
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if (ind_point_suivant != ind_max_point - 1) {
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if (ps_x > p_x - 1 && ps_x < p_x + 1) {
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points.replace(ind_point_suivant, QPointF(new_pos_x, ps_y));
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} else {
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points.replace(ind_point_suivant, QPointF(ps_x, new_pos_y));
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}
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} else {
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if (ps_x > p_x - 1 && ps_x < p_x + 1) {
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new_pos_x = p_x;
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} else {
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new_pos_y = p_y;
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}
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}
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}
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// calcul du deplacement
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moved_segment -> moveX(mouse_x - p_x());
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moved_segment -> moveY(mouse_y - p_y());
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// application du deplacement
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modified_path = true;
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points.replace(moved_point, QPointF(new_pos_x, new_pos_y));
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updatePoints();
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pointsToPath();
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segmentsToPath();
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*/
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} else if (moving_segment) {
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// position precedente du point
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QPointF p = moved_segment -> middle();
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// calcul du deplacement
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moved_segment -> moveX(mouse_x - p.x());
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moved_segment -> moveY(mouse_y - p.y());
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// application du deplacement
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modified_path = true;
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updatePoints();
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segmentsToPath();
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}
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}
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QGraphicsPathItem::mouseMoveEvent(e);
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@@ -506,10 +485,9 @@ void Conducer::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
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*/
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void Conducer::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
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// clic gauche
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if (e -> buttons() & Qt::LeftButton) {
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moving_point = false;
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QGraphicsPathItem::mouseReleaseEvent(e);
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}
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moving_point = false;
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moving_segment = false;
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QGraphicsPathItem::mouseReleaseEvent(e);
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}
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/**
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@@ -525,6 +503,7 @@ QRectF Conducer::boundingRect() const {
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@return La forme / zone "cliquable" du conducteur
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*/
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QPainterPath Conducer::shape() const {
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QList<QPointF> points = segmentsToPoints();
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QPainterPath area;
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QPointF previous_point;
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QPointF *point1, *point2;
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@@ -565,6 +544,7 @@ QPainterPath Conducer::shape() const {
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Met à jour deux listes de reels.
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*/
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void Conducer::updatePoints() {
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QList<QPointF> points = segmentsToPoints();
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int s = points.size();
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moves_x.clear();
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moves_y.clear();
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@@ -591,3 +571,74 @@ qreal Conducer::conducer_bound(qreal tobound, qreal bound, bool positive) {
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qreal space = 5.0;
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return(positive ? qMax(tobound, bound + space) : qMin(tobound, bound - space));
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}
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int Conducer::nbSegments() {
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if (segments == NULL) return(0);
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int nb_seg = 1;
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ConducerSegment *segment = segments;
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while (segment -> hasNextSegment()) {
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++ nb_seg;
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segment = segment -> nextSegment();
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}
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return(nb_seg);
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}
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/**
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Genere une liste de points a partir des segments de ce conducteur
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@return La liste de points representant ce conducteur
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*/
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QList<QPointF> Conducer::segmentsToPoints() const {
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// liste qui sera retournee
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QList<QPointF> points_list;
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// on retourne la liste tout de suite s'il n'y a pas de segments
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if (segments == NULL) return(points_list);
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// recupere le premier point
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points_list << segments -> firstPoint();
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// parcourt les segments pour recuperer les autres points
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ConducerSegment *segment = segments;
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while(segment -> hasNextSegment()) {
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points_list << segment -> secondPoint();
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segment = segment -> nextSegment();
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}
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// recupere le dernier point
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points_list << segment -> secondPoint();
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//retourne la liste
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return(points_list);
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}
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/**
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Regenere les segments de ce conducteur a partir de la liste de points passee en parametre
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@param points_list Liste de points a utiliser pour generer les segments
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*/
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void Conducer::pointsToSegments(QList<QPointF> points_list) {
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// supprime les segments actuels
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if (segments != NULL) {
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ConducerSegment *segment = segments;
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while (segment -> hasNextSegment()) {
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ConducerSegment *nextsegment = segment -> nextSegment();
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delete segment;
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segment = nextsegment;
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}
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}
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// cree les segments a partir de la liste de points
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ConducerSegment *last_segment = NULL;
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for (int i = 0 ; i < points_list.size() - 1 ; ++ i) {
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last_segment = new ConducerSegment(points_list.at(i), points_list.at(i + 1), last_segment);
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if (!i) segments = last_segment;
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}
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}
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bool Conducer::hasClickedOn(QPointF press_point, QPointF point) {
|
||||
return (
|
||||
press_point.x() >= point.x() - 5.0 &&\
|
||||
press_point.x() < point.x() + 5.0 &&\
|
||||
press_point.y() >= point.y() - 5.0 &&\
|
||||
press_point.y() < point.y() + 5.0
|
||||
);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user