211 lines
8.7 KiB
C++
211 lines
8.7 KiB
C++
#include "graphingwindow.h"
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#include "ui_graphingwindow.h"
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#include "newgraphdialog.h"
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GraphingWindow::GraphingWindow(QWidget *parent) :
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QDialog(parent),
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ui(new Ui::GraphingWindow)
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{
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ui->setupUi(this);
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ui->graphingView->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectAxes |
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QCP::iSelectLegend | QCP::iSelectPlottables);
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connect(ui->graphingView, SIGNAL(mousePress(QMouseEvent*)), this, SLOT(mousePress()));
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connect(ui->graphingView, SIGNAL(mouseWheel(QWheelEvent*)), this, SLOT(mouseWheel()));
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// make bottom and left axes transfer their ranges to top and right axes:
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connect(ui->graphingView->xAxis, SIGNAL(rangeChanged(QCPRange)), ui->graphingView->xAxis2, SLOT(setRange(QCPRange)));
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connect(ui->graphingView->yAxis, SIGNAL(rangeChanged(QCPRange)), ui->graphingView->yAxis2, SLOT(setRange(QCPRange)));
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connect(ui->graphingView, SIGNAL(titleDoubleClick(QMouseEvent*,QCPPlotTitle*)), this, SLOT(titleDoubleClick(QMouseEvent*,QCPPlotTitle*)));
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connect(ui->graphingView, SIGNAL(axisDoubleClick(QCPAxis*,QCPAxis::SelectablePart,QMouseEvent*)), this, SLOT(axisLabelDoubleClick(QCPAxis*,QCPAxis::SelectablePart)));
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connect(ui->graphingView, SIGNAL(legendDoubleClick(QCPLegend*,QCPAbstractLegendItem*,QMouseEvent*)), this, SLOT(legendDoubleClick(QCPLegend*,QCPAbstractLegendItem*)));
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// setup policy and connect slot for context menu popup:
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ui->graphingView->setContextMenuPolicy(Qt::CustomContextMenu);
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connect(ui->graphingView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenuRequest(QPoint)));
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}
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GraphingWindow::~GraphingWindow()
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{
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delete ui;
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}
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void GraphingWindow::titleDoubleClick(QMouseEvent* event, QCPPlotTitle* title)
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{
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Q_UNUSED(event)
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// Set the plot title by double clicking on it
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bool ok;
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QString newTitle = QInputDialog::getText(this, "SavvyCAN Graphing", "New plot title:", QLineEdit::Normal, title->text(), &ok);
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if (ok)
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{
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title->setText(newTitle);
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ui->graphingView->replot();
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}
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}
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void GraphingWindow::axisLabelDoubleClick(QCPAxis *axis, QCPAxis::SelectablePart part)
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{
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// Set an axis label by double clicking on it
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if (part == QCPAxis::spAxisLabel) // only react when the actual axis label is clicked, not tick label or axis backbone
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{
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bool ok;
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QString newLabel = QInputDialog::getText(this, "SavvyCAN Graphing", "New axis label:", QLineEdit::Normal, axis->label(), &ok);
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if (ok)
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{
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axis->setLabel(newLabel);
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ui->graphingView->replot();
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}
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}
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}
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void GraphingWindow::legendDoubleClick(QCPLegend *legend, QCPAbstractLegendItem *item)
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{
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// Rename a graph by double clicking on its legend item
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Q_UNUSED(legend)
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if (item) // only react if item was clicked (user could have clicked on border padding of legend where there is no item, then item is 0)
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{
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QCPPlottableLegendItem *plItem = qobject_cast<QCPPlottableLegendItem*>(item);
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bool ok;
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QString newName = QInputDialog::getText(this, "SavvyCAN Graphing", "New graph name:", QLineEdit::Normal, plItem->plottable()->name(), &ok);
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if (ok)
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{
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plItem->plottable()->setName(newName);
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ui->graphingView->replot();
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}
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}
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}
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void GraphingWindow::selectionChanged()
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{
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/*
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normally, axis base line, axis tick labels and axis labels are selectable separately, but we want
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the user only to be able to select the axis as a whole, so we tie the selected states of the tick labels
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and the axis base line together. However, the axis label shall be selectable individually.
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The selection state of the left and right axes shall be synchronized as well as the state of the
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bottom and top axes.
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Further, we want to synchronize the selection of the graphs with the selection state of the respective
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legend item belonging to that graph. So the user can select a graph by either clicking on the graph itself
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or on its legend item.
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*/
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// make top and bottom axes be selected synchronously, and handle axis and tick labels as one selectable object:
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if (ui->graphingView->xAxis->selectedParts().testFlag(QCPAxis::spAxis) || ui->graphingView->xAxis->selectedParts().testFlag(QCPAxis::spTickLabels) ||
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ui->graphingView->xAxis2->selectedParts().testFlag(QCPAxis::spAxis) || ui->graphingView->xAxis2->selectedParts().testFlag(QCPAxis::spTickLabels))
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{
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ui->graphingView->xAxis2->setSelectedParts(QCPAxis::spAxis|QCPAxis::spTickLabels);
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ui->graphingView->xAxis->setSelectedParts(QCPAxis::spAxis|QCPAxis::spTickLabels);
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}
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// make left and right axes be selected synchronously, and handle axis and tick labels as one selectable object:
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if (ui->graphingView->yAxis->selectedParts().testFlag(QCPAxis::spAxis) || ui->graphingView->yAxis->selectedParts().testFlag(QCPAxis::spTickLabels) ||
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ui->graphingView->yAxis2->selectedParts().testFlag(QCPAxis::spAxis) || ui->graphingView->yAxis2->selectedParts().testFlag(QCPAxis::spTickLabels))
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{
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ui->graphingView->yAxis2->setSelectedParts(QCPAxis::spAxis|QCPAxis::spTickLabels);
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ui->graphingView->yAxis->setSelectedParts(QCPAxis::spAxis|QCPAxis::spTickLabels);
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}
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// synchronize selection of graphs with selection of corresponding legend items:
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for (int i=0; i<ui->graphingView->graphCount(); ++i)
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{
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QCPGraph *graph = ui->graphingView->graph(i);
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QCPPlottableLegendItem *item = ui->graphingView->legend->itemWithPlottable(graph);
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if (item->selected() || graph->selected())
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{
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item->setSelected(true);
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graph->setSelected(true);
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}
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}
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}
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void GraphingWindow::mousePress()
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{
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// if an axis is selected, only allow the direction of that axis to be dragged
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// if no axis is selected, both directions may be dragged
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if (ui->graphingView->xAxis->selectedParts().testFlag(QCPAxis::spAxis))
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ui->graphingView->axisRect()->setRangeDrag(ui->graphingView->xAxis->orientation());
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else if (ui->graphingView->yAxis->selectedParts().testFlag(QCPAxis::spAxis))
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ui->graphingView->axisRect()->setRangeDrag(ui->graphingView->yAxis->orientation());
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else
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ui->graphingView->axisRect()->setRangeDrag(Qt::Horizontal|Qt::Vertical);
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}
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void GraphingWindow::mouseWheel()
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{
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// if an axis is selected, only allow the direction of that axis to be zoomed
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// if no axis is selected, both directions may be zoomed
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if (ui->graphingView->xAxis->selectedParts().testFlag(QCPAxis::spAxis))
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ui->graphingView->axisRect()->setRangeZoom(ui->graphingView->xAxis->orientation());
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else if (ui->graphingView->yAxis->selectedParts().testFlag(QCPAxis::spAxis))
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ui->graphingView->axisRect()->setRangeZoom(ui->graphingView->yAxis->orientation());
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else
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ui->graphingView->axisRect()->setRangeZoom(Qt::Horizontal|Qt::Vertical);
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}
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void GraphingWindow::removeSelectedGraph()
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{
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if (ui->graphingView->selectedGraphs().size() > 0)
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{
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ui->graphingView->removeGraph(ui->graphingView->selectedGraphs().first());
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ui->graphingView->replot();
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}
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}
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void GraphingWindow::removeAllGraphs()
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{
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ui->graphingView->clearGraphs();
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ui->graphingView->replot();
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}
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void GraphingWindow::contextMenuRequest(QPoint pos)
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{
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QMenu *menu = new QMenu(this);
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menu->setAttribute(Qt::WA_DeleteOnClose);
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if (ui->graphingView->legend->selectTest(pos, false) >= 0) // context menu on legend requested
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{
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menu->addAction("Move to top left", this, SLOT(moveLegend()))->setData((int)(Qt::AlignTop|Qt::AlignLeft));
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menu->addAction("Move to top center", this, SLOT(moveLegend()))->setData((int)(Qt::AlignTop|Qt::AlignHCenter));
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menu->addAction("Move to top right", this, SLOT(moveLegend()))->setData((int)(Qt::AlignTop|Qt::AlignRight));
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menu->addAction("Move to bottom right", this, SLOT(moveLegend()))->setData((int)(Qt::AlignBottom|Qt::AlignRight));
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menu->addAction("Move to bottom left", this, SLOT(moveLegend()))->setData((int)(Qt::AlignBottom|Qt::AlignLeft));
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} else // general context menu on graphs requested
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{
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menu->addAction("Add new graph", this, SLOT(addNewGraph()));
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if (ui->graphingView->selectedGraphs().size() > 0)
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menu->addAction("Remove selected graph", this, SLOT(removeSelectedGraph()));
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if (ui->graphingView->graphCount() > 0)
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menu->addAction("Remove all graphs", this, SLOT(removeAllGraphs()));
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}
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menu->popup(ui->graphingView->mapToGlobal(pos));
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}
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void GraphingWindow::addNewGraph()
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{
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NewGraphDialog *thisDialog = new NewGraphDialog();
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thisDialog->show();
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}
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void GraphingWindow::moveLegend()
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{
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if (QAction* contextAction = qobject_cast<QAction*>(sender())) // make sure this slot is really called by a context menu action, so it carries the data we need
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{
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bool ok;
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int dataInt = contextAction->data().toInt(&ok);
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if (ok)
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{
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ui->graphingView->axisRect()->insetLayout()->setInsetAlignment(0, (Qt::Alignment)dataInt);
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ui->graphingView->replot();
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}
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}
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}
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