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// BSD 2-Clause License |
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// Copyright (c) 2015 - 2018, hpp-plot |
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// Authors: Heidy Dallard, Joseph Mirabel |
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// All rights reserved. |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions |
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// are met: |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above copyright |
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// notice, this list of conditions and the following disclaimer in |
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// the documentation and/or other materials provided with the |
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// distribution. |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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// COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
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// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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// OF THE POSSIBILITY OF SUCH DAMAGE. |
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#include "hpp/plot/graph-widget.hh" |
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#include <qmath.h> |
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#include <QDebug> |
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#include <QFileDialog> |
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#include <QGraphicsSceneDragDropEvent> |
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#include <QHBoxLayout> |
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#include <QMenu> |
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#include <QPushButton> |
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#include <QScrollBar> |
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#include <QSplitter> |
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#include <QVBoxLayout> |
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#include <QWheelEvent> |
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#include "QGVEdge.h" |
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#include "QGVNode.h" |
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#include "QGVScene.h" |
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#include "QGVSubGraph.h" |
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namespace hpp { |
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namespace plot { |
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GraphView::GraphView(QWidget *parent) : QGraphicsView(parent) { |
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setTransformationAnchor(AnchorUnderMouse); |
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setDragMode(ScrollHandDrag); |
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setBackgroundBrush(QBrush(Qt::lightGray, Qt::SolidPattern)); |
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} |
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void GraphView::wheelEvent(QWheelEvent *event) { |
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if (event->modifiers() == Qt::ControlModifier) { |
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qreal scaleFactor = qPow(2.0, event->delta() / 240.0); // How fast we zoom |
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qreal factor = transform() |
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.scale(scaleFactor, scaleFactor) |
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.mapRect(QRectF(0, 0, 1, 1)) |
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.width(); |
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if (0.05 < factor && factor < 10) // Zoom factor limitation |
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scale(scaleFactor, scaleFactor); |
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} |
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} |
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GraphWidget::GraphWidget(QString name, QWidget *parent) |
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: QWidget(parent), |
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scene_(new QGVScene(name, 0)), |
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buttonBox_(new QWidget()), |
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elmtInfo_(new QTextEdit()), |
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loggingInfo_(new QTextEdit()), |
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constraintInfo_(new QTextEdit()), |
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view_(new GraphView(0)), |
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layoutShouldBeFreed_(false) { |
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view_->setScene(scene_); |
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elmtInfo_->setReadOnly(true); |
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loggingInfo_->setReadOnly(true); |
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elmtInfo_->setText("No info"); |
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loggingInfo_->setText("No info"); |
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elmtInfo_->setWordWrapMode(QTextOption::NoWrap); |
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loggingInfo_->setWordWrapMode(QTextOption::NoWrap); |
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view_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); |
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view_->setTransformationAnchor(QGraphicsView::AnchorUnderMouse); |
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view_->setRenderHint(QPainter::Antialiasing); |
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view_->setRenderHint(QPainter::TextAntialiasing); |
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QSplitter *splitter = new QSplitter(); |
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splitter->setOrientation(Qt::Horizontal); |
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QWidget *infoW = new QWidget(); |
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QVBoxLayout *infoL = new QVBoxLayout(); |
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infoL->addWidget(elmtInfo_); |
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// infoL->addWidget(loggingInfo_); |
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infoL->addWidget(constraintInfo_); |
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infoW->setLayout(infoL); |
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splitter->addWidget(infoW); |
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splitter->addWidget(view_); |
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QVBoxLayout *vl = new QVBoxLayout(); |
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vl->addWidget(buttonBox_); |
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vl->addWidget(splitter); |
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splitter->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); |
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this->setLayout(vl); |
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elmtInfo_->resize(elmtInfo_->minimumSize()); |
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// loggingInfo_->resize(loggingInfo_->minimumSize()); |
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view_->resize(splitter->width() - elmtInfo_->width(), splitter->height()); |
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connect(scene_, SIGNAL(nodeContextMenu(QGVNode *)), |
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SLOT(nodeContextMenu(QGVNode *))); |
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connect(scene_, SIGNAL(nodeDoubleClick(QGVNode *)), |
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SLOT(nodeDoubleClick(QGVNode *))); |
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connect(scene_, SIGNAL(edgeContextMenu(QGVEdge *)), |
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SLOT(edgeContextMenu(QGVEdge *))); |
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connect(scene_, SIGNAL(edgeDoubleClick(QGVEdge *)), |
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SLOT(edgeDoubleClick(QGVEdge *))); |
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QHBoxLayout *hLayout = new QHBoxLayout(buttonBox_); |
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hLayout->setMargin(0); |
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algList_ = new QComboBox(this); |
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algList_->addItems(QStringList() << "dot" |
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<< "neato" |
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<< "fdp" |
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<< "sfdp" |
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<< "twopi" |
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<< "circo"); |
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// << "patchwork" << "osage"); |
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QPushButton *saveas = new QPushButton(QIcon::fromTheme("document-save-as"), |
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"&Save DOT file...", buttonBox_); |
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QPushButton *refresh = |
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new QPushButton(QIcon::fromTheme("view-refresh"), "&Refresh", buttonBox_); |
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QPushButton *update = new QPushButton(QIcon::fromTheme("view-refresh"), |
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"&Update edges", buttonBox_); |
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buttonBox_->setLayout(hLayout); |
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buttonBox_->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum); |
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hLayout->setAlignment(buttonBox_, Qt::AlignRight); |
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hLayout->addSpacerItem( |
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new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum)); |
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hLayout->addWidget(algList_); |
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hLayout->addWidget(saveas); |
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hLayout->addWidget(update); |
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hLayout->addWidget(refresh); |
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connect(saveas, SIGNAL(clicked()), this, SLOT(saveDotFile())); |
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connect(refresh, SIGNAL(clicked()), this, SLOT(updateGraph())); |
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connect(update, SIGNAL(clicked()), this, SLOT(updateEdges())); |
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connect(scene_, SIGNAL(nodeMouseRelease(QGVNode *)), this, |
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SLOT(updateEdges())); |
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} |
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GraphWidget::~GraphWidget() { delete scene_; } |
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void GraphWidget::updateGraph() { |
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// Layout scene |
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if (layoutShouldBeFreed_) scene_->freeLayout(); |
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scene_->clear(); |
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QRectF rect = view_->sceneRect(); |
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rect.setWidth(0); |
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rect.setHeight(0); |
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view_->setSceneRect(rect); |
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fillScene(); |
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scene_->applyLayout(algList_->currentText()); |
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layoutShouldBeFreed_ = true; |
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scene_->setNodePositionAttribute(); |
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scene_->setGraphAttribute("splines", "spline"); |
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scene_->setGraphAttribute("overlap", "false"); |
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scene_->setNodeAttribute("pin", "true"); |
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// scene_->render("canon", "debug.dot"); |
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// Fit in view |
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// view_->fitInView(scene_->sceneRect(), Qt::KeepAspectRatio); |
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} |
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void GraphWidget::updateEdges() { |
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// Layout scene |
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if (layoutShouldBeFreed_) scene_->freeLayout(); |
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scene_->applyLayout("nop2"); |
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layoutShouldBeFreed_ = true; |
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} |
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void GraphWidget::saveDotFile() { |
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QString filename = QFileDialog::getSaveFileName( |
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this, "Save DOT file", "./graph.dot", tr("DOT files (*.dot)")); |
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if (!filename.isNull()) { |
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scene_->writeGraph(filename); |
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} |
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} |
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void GraphWidget::nodeContextMenu(QGVNode *node) { Q_UNUSED(node) } |
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void GraphWidget::nodeDoubleClick(QGVNode *node) { Q_UNUSED(node) } |
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void hpp::plot::GraphWidget::edgeDoubleClick(QGVEdge *edge) { Q_UNUSED(edge) } |
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void hpp::plot::GraphWidget::edgeContextMenu(QGVEdge *edge) { Q_UNUSED(edge) } |
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void GraphWidget::fillScene() { |
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// Configure scene attributes |
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scene_->setGraphAttribute("label", "DEMO"); |
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scene_->setGraphAttribute("splines", "ortho"); |
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scene_->setGraphAttribute("rankdir", "LR"); |
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// scene_->setGraphAttribute("concentrate", "true"); //Error ! |
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scene_->setGraphAttribute("nodesep", "0.4"); |
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scene_->setNodeAttribute("shape", "box"); |
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scene_->setNodeAttribute("style", "filled"); |
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scene_->setNodeAttribute("fillcolor", "white"); |
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scene_->setNodeAttribute("height", "1.2"); |
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scene_->setEdgeAttribute("minlen", "3"); |
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// scene_->setEdgeAttribute("dir", "both"); |
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// Add some nodes |
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QGVNode *node1 = scene_->addNode("BOX"); |
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node1->setIcon(QIcon::fromTheme("view-refresh").pixmap(24, 24).toImage()); |
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QGVNode *node2 = scene_->addNode("SERVER0"); |
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node2->setIcon(QImage(":/icons/Gnome-Network-Transmit-64.png")); |
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node2->setFlag(QGraphicsItem::ItemIsMovable, true); |
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node2->setFlag(QGraphicsItem::ItemSendsGeometryChanges, true); |
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QGVNode *node3 = scene_->addNode("SERVER1"); |
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node3->setIcon(QImage(":/icons/Gnome-Network-Transmit-64.png")); |
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QGVNode *node4 = scene_->addNode("USER"); |
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node4->setIcon(QImage(":/icons/Gnome-Stock-Person-64.png")); |
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QGVNode *node5 = scene_->addNode("SWITCH"); |
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node5->setIcon(QImage(":/icons/Gnome-Network-Server-64.png")); |
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// Add some edges |
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scene_->addEdge(node1, node2, "TTL")->setAttribute("color", "red"); |
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scene_->addEdge(node1, node2, "SERIAL"); |
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scene_->addEdge(node1, node3, "RAZ")->setAttribute("color", "blue"); |
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scene_->addEdge(node2, node3, "SECU"); |
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scene_->addEdge(node2, node4, "STATUS")->setAttribute("color", "red"); |
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scene_->addEdge(node4, node3, "ACK")->setAttribute("color", "red"); |
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scene_->addEdge(node4, node2, "TBIT"); |
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scene_->addEdge(node4, node2, "ETH"); |
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scene_->addEdge(node4, node2, "RS232"); |
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scene_->addEdge(node4, node5, "ETH1"); |
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scene_->addEdge(node2, node5, "ETH2"); |
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QGVSubGraph *sgraph = scene_->addSubGraph("SUB1"); |
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sgraph->setAttribute("label", "OFFICE"); |
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QGVNode *snode1 = sgraph->addNode("PC0152"); |
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QGVNode *snode2 = sgraph->addNode("PC0153"); |
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scene_->addEdge(snode1, snode2, "RT7"); |
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scene_->addEdge(node3, snode1, "GB8"); |
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scene_->addEdge(node3, snode2, "TS9"); |
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QGVSubGraph *ssgraph = sgraph->addSubGraph("SUB2"); |
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ssgraph->setAttribute("label", "DESK"); |
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scene_->addEdge(snode1, ssgraph->addNode("PC0155"), "S10"); |
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} |
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} // namespace plot |
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} // namespace hpp |
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