git-svn-id: svn://db.shs.com.ru/libs@586 a8b55f48-bf90-11e4-a774-851b48703e85
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163
test/qad/blockview/blockitempin.cpp
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163
test/qad/blockview/blockitempin.cpp
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#include "blockview.h"
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#include <QApplication>
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BlockItemPin::BlockItemPin(Qt::Alignment a, int bus_type_, const QString & text_, QGraphicsObject * _parent): QGraphicsObject(_parent), ell_item(this), text_item(this) {
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parent_ = 0;
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setData(1004, "pin");
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setAcceptHoverEvents(true);
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text_item.setData(1002, true);
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ell_item.setData(1003, true);
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br[Disconnected] = QBrush(Qt::lightGray);
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br[Connected] = QBrush(Qt::darkGreen);
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br[Hover] = QBrush(Qt::blue);
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br[Drop] = QBrush(Qt::green);
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br[Accept] = QBrush(Qt::green);
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br[Reject] = QBrush(Qt::red);
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anim_pin_size.setTargetObject(this);
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anim_pin_size.setPropertyName("pinSize");
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anim_pin_size.setEasingCurve(QEasingCurve::OutElastic);
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anim_pin_size.setDuration(700);
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anim_accept.setTargetObject(this);
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anim_accept.setPropertyName("pinSize");
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anim_accept.setEasingCurve(QEasingCurve::InOutQuad);
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anim_accept.setDuration(150);
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connect(&anim_accept, SIGNAL(finished()), this, SLOT(animationAccept()));
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setState(Disconnected);
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setAlignment(a);
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setBusType(bus_type_);
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setText(text_);
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setZValue(2.);
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setDirection(BlockItemPin::InputOutput);
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_reparent();
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}
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void BlockItemPin::animAccept() {
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if (!((BlockView *)scene()->views().back())->isBlockAnimationEnabled() && anim_accept.state() != QAbstractAnimation::Running) return;
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anim_accept.setStartValue(pinSize());
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anim_accept.setEndValue(10.);
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anim_accept.start();
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}
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void BlockItemPin::setState(State s) {
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State os = state_;
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state_ = s;
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setBrush(br[int(state_)]);
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if (s == Accept && os != Accept) {
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animAccept();
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}
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update();
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}
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void BlockItemPin::enlargePin(bool enlarge) {
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double sz = enlarge ? 12. : 7;
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if (anim_accept.state() == QAbstractAnimation::Running && enlarge) {
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anim_accept.stop();
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resizePin(sz);
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}
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if (!((BlockView *)scene()->views().back())->isBlockAnimationEnabled()) {
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resizePin(sz);
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return;
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}
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if (sz == anim_pin_size.endValue())
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return;
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anim_pin_size.stop();
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anim_pin_size.setStartValue(pinSize());
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anim_pin_size.setEndValue(sz);
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anim_pin_size.start();
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}
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void BlockItemPin::resizePin(double r) {
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ell_item.setRect(-r, -r, r+r, r+r);
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}
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double BlockItemPin::pinSize() const {
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return ell_item.rect().width() / 2.;
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}
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void BlockItemPin::animationAccept() {
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if (anim_accept.endValue().toDouble() == 7.) return;
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anim_accept.setStartValue(pinSize());
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anim_accept.setEndValue(7.);
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anim_accept.start();
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}
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void BlockItemPin::_init(bool affect_parent) {
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text_item.setFont(AlignedTextItem::sceneFont(QApplication::font()));
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QRectF tbr = text_item.boundingRect();
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const double r = 7.;
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ell_item.setRect(-r, -r, r+r, r+r);
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ell_item.setSpanAngle(16*180);
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text_item.resetTransform();
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text_item.setPos(0, -tbr.height() / 2.);
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text_item.setTransformOriginPoint(0, tbr.height() / 2.);
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switch (align) {
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case Qt::AlignBottom: ell_item.setStartAngle(16*0); text_item.setRotation(-90.); text_item.moveBy(0, -r * 1.5); break;
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case Qt::AlignRight: ell_item.setStartAngle(16*90); text_item.setRotation(0.); text_item.moveBy(-tbr.width() - r * 1.5, 0); break;
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case Qt::AlignTop: ell_item.setStartAngle(16*180); text_item.setRotation(-90.); text_item.moveBy(0, tbr.width() + r * 1.5); break;
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case Qt::AlignLeft: ell_item.setStartAngle(16*270); text_item.setRotation(0.); text_item.moveBy(r * 1.5, 0); break;
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default: break;
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}
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if (affect_parent && parent_)
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parent_->arrangePins();
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}
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void BlockItemPin::_reparent() {
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if (parentItem() == 0) return;
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if (qgraphicsitem_cast<BlockItem*>(parentItem()) == 0) return;
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QPen p = qgraphicsitem_cast<BlockItem*>(parentItem())->g_main.pen();
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ell_item.setPen(p);
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if (scene()) {
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text_item.setFont(AlignedTextItem::sceneFont(scene()->font()));
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QRectF tbr = text_item.boundingRect();
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text_item.resetTransform();
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text_item.setPos(0, -tbr.height() / 2.);
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text_item.setTransformOriginPoint(0, tbr.height() / 2.);
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}
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}
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QGraphicsView * BlockItemPin::_view() const {
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if (!scene()) return 0;
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if (scene()->views().isEmpty()) return 0;
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return scene()->views().back();
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}
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QVariant BlockItemPin::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant & value) {
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if (change == QGraphicsItem::ItemParentChange)
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_reparent();
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return QGraphicsItem::itemChange(change, value);
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}
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void BlockItemPin::hoverEnterEvent(QGraphicsSceneHoverEvent * e) {
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QGraphicsView * v = _view();
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bool m_pin_mc = false;
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if (v) {
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QMetaObject::invokeMethod(v, "getPinMC", Q_ARG(bool*, &m_pin_mc));
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QMetaObject::invokeMethod(v, "pinHoverInOut", Qt::QueuedConnection, Q_ARG(BlockItemPin*, this));
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}
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if ((state() != Disconnected) && !m_pin_mc) return;
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saveState();
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setState(BlockItemPin::Hover);
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enlargePin(true);
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update();
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}
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void BlockItemPin::hoverLeaveEvent(QGraphicsSceneHoverEvent * e) {
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QGraphicsView * v = _view();
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restoreState();
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enlargePin(false);
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update();
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if (v) QMetaObject::invokeMethod(v, "pinHoverInOut", Q_ARG(BlockItemPin*, 0));
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}
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