qt坐标轴实现修改颜色，坐标轴可拖拽、缩放
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e1dd28762d
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eaa879d463
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@ -12,7 +12,12 @@ MainWindow::MainWindow(QWidget *parent)
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ui->setupUi(this);
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customPlot = new QCustomPlot(this);
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settingsDialog = new SettingsDialog(this);
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plotGraph();
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settingsDialog = new SettingsDialog(curves.size(), this);
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QVector<QColor> curves_color = settingsDialog->getCurveColors();
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for(int i=0; i< curves.size(); ++i){
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curves[i]->setPen(QPen(curves_color[i]));
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}
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QPushButton *saveButton = new QPushButton("Save Graph", this);
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connect(saveButton, &QPushButton::clicked, this, &MainWindow::saveGraph);
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@ -22,7 +27,6 @@ MainWindow::MainWindow(QWidget *parent)
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layout->addWidget(saveButton);
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ui->centralwidget->setLayout(layout);
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plotGraph();
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// 连接customPlot的双击信号到槽函数
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connect(customPlot, &QCustomPlot::mouseDoubleClick, this, &MainWindow::openSettingsDialog);
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@ -37,6 +41,8 @@ MainWindow::~MainWindow()
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void MainWindow::plotGraph()
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{
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curves.clear();
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QVector<double> I_values, t_values;
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QVector<QCPCurveData> curve0, curve1, curve2, curve3, curve4, curve5;
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@ -63,33 +69,36 @@ void MainWindow::plotGraph()
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// 创建曲线并添加到图表中
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QCPCurve *curveFunction = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curveFunction);
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QCPCurve *curve0Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve0Plot);
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QCPCurve *curve1Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve1Plot);
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QCPCurve *curve2Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve2Plot);
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QCPCurve *curve3Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve3Plot);
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QCPCurve *curve4Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve4Plot);
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QCPCurve *curve5Plot = new QCPCurve(customPlot->xAxis, customPlot->yAxis);
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curves.append(curve5Plot);
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curveFunction->setData(I_values, t_values);
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curveFunction->setPen(QPen(Qt::black, 1, Qt::DashLine));
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curveFunction->setPen(QPen(Qt::DashLine));
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// curveFunction->setPen(QPen(Qt::black, 1, Qt::DashLine));
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curve0Plot->data()->set(curve0, true);
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curve0Plot->setPen(QPen(Qt::blue));
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// curve0Plot->setPen(QPen(Qt::blue));
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curve1Plot->data()->set(curve1, true);
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curve1Plot->setPen(QPen(Qt::green));
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// curve1Plot->setPen(QPen(Qt::green));
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curve2Plot->data()->set(curve2, true);
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curve2Plot->setPen(QPen(QColorConstants::Svg::purple));
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// curve2Plot->setPen(QPen(QColorConstants::Svg::purple));
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curve3Plot->data()->set(curve3, true);
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curve3Plot->setPen(QPen(QColorConstants::Svg::orange));
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// curve3Plot->setPen(QPen(QColorConstants::Svg::orange));
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curve4Plot->data()->set(curve4, true);
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curve4Plot->setPen(QPen(Qt::red));
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// curve4Plot->setPen(QPen(Qt::red));
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curve5Plot->data()->set(curve5, true);
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curve5Plot->setPen(QPen(QColorConstants::Svg::brown));
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// curve5Plot->setPen(QPen(QColorConstants::Svg::brown));
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// 设置对数坐标轴
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customPlot->xAxis->setScaleType(QCPAxis::stLogarithmic);
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@ -101,6 +110,16 @@ void MainWindow::plotGraph()
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customPlot->xAxis->setRange(5, 10000);
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customPlot->yAxis->setRange(0.01, 1000);
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// 启用缩放拖动
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customPlot->setInteraction(QCP::iRangeZoom, true); // 缩放
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customPlot->setInteraction(QCP::iRangeDrag, true); // 拖动
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// 设置可以通过滚轮缩放的轴
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customPlot->axisRect()->setRangeZoom(Qt::Horizontal | Qt::Vertical); // 水平和垂直方向都可以缩放
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customPlot->axisRect()->setRangeZoomAxes(customPlot->xAxis, customPlot->yAxis); // 指定X和Y轴
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// 设置缩放的缩放速度
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customPlot->axisRect()->setRangeZoomFactor(0.9);
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// 显示网格
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customPlot->xAxis->grid()->setSubGridVisible(true);
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customPlot->yAxis->grid()->setSubGridVisible(true);
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@ -132,12 +151,18 @@ void MainWindow::openSettingsDialog()
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customPlot->yAxis->setRange(yMin, yMax);
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// 设置曲线颜色
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QColor curveColor1 = settingsDialog->getCurveColor(0);
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QColor curveColor2 = settingsDialog->getCurveColor(1);
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// QColor curveColor1 = settingsDialog->getCurveColor(0);
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// QColor curveColor2 = settingsDialog->getCurveColor(1);
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// customPlot->graph(0)->setPen(QPen(curveColor1));
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// customPlot->graph(1)->setPen(QPen(curveColor2));
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QVector<QColor> curves_color = settingsDialog->getCurveColors();
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for(int i=0; i< curves.size(); ++i){
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curves[i]->setPen(QPen(curves_color[i]));
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}
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// 设置背景颜色
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QColor backgroundColor = settingsDialog->getBackgroundColor();
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customPlot->setBackground(backgroundColor);
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@ -19,13 +19,14 @@ public:
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private slots:
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void saveGraph();
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void openSettingsDialog(); // 新增槽函数
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void openSettingsDialog();
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private:
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Ui::MainWindow *ui;
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QCustomPlot *customPlot;
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SettingsDialog *settingsDialog;
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QVector<QCPCurve*> curves;
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void plotGraph();
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};
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@ -11,7 +11,7 @@
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</rect>
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</property>
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<property name="windowTitle">
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<string>MainWindow</string>
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<string>曲线编辑</string>
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</property>
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<widget class="QWidget" name="centralwidget"/>
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<widget class="QMenuBar" name="menubar">
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@ -20,7 +20,7 @@
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>27</height>
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<height>23</height>
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</rect>
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</property>
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</widget>
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@ -1,29 +1,28 @@
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#include "settingsdialog.h"
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SettingsDialog::SettingsDialog(QWidget *parent) :
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QDialog(parent)
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SettingsDialog::SettingsDialog(int curveCount, QWidget *parent) :
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QDialog(parent),
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// curveColors{Qt::blue, Qt::green},
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backgroundColor(Qt::white)
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{
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initializeCurveColors(100, 123);
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// 创建UI元素
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QLabel *xMinLabel = new QLabel("X Axis Min:", this);
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xMinLineEdit = new QLineEdit(this);
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xMinLineEdit->setText("5");
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QLabel *xMaxLabel = new QLabel("X Axis Max:", this);
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xMaxLineEdit = new QLineEdit(this);
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xMaxLineEdit->setText("10000");
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QLabel *yMinLabel = new QLabel("Y Axis Min:", this);
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yMinLineEdit = new QLineEdit(this);
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yMinLineEdit->setText("0.01");
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QLabel *yMaxLabel = new QLabel("Y Axis Max:", this);
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yMaxLineEdit = new QLineEdit(this);
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QLabel *curveColor1Label = new QLabel("Curve 1 Color:", this);
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curveColor1Button = new QPushButton(this);
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curveColor1Button->setStyleSheet("background-color: blue");
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QLabel *curveColor2Label = new QLabel("Curve 2 Color:", this);
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curveColor2Button = new QPushButton(this);
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curveColor2Button->setStyleSheet("background-color: green");
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yMaxLineEdit->setText("1000");
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QLabel *backgroundColorLabel = new QLabel("Background Color:", this);
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backgroundColorButton = new QPushButton(this);
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backgroundColorButton->setStyleSheet("background-color: white");
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updateColorButton(backgroundColorButton, backgroundColor);
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gridCheckBox = new QCheckBox("Show Grid", this);
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gridCheckBox->setChecked(true);
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@ -39,14 +38,13 @@ SettingsDialog::SettingsDialog(QWidget *parent) :
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layout->addWidget(yMaxLabel, 3, 0);
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layout->addWidget(yMaxLineEdit, 3, 1);
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layout->addWidget(curveColor1Label, 4, 0);
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layout->addWidget(curveColor1Button, 4, 1);
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layout->addWidget(curveColor2Label, 5, 0);
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layout->addWidget(curveColor2Button, 5, 1);
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layout->addWidget(backgroundColorLabel, 6, 0);
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layout->addWidget(backgroundColorButton, 6, 1);
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// 添加曲线颜色按钮
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setupCurveColorButtons(curveCount);
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layout->addWidget(gridCheckBox, 7, 0, 1, 2);
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layout->addWidget(backgroundColorLabel, 4 + curveCount, 0);
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layout->addWidget(backgroundColorButton, 4 + curveCount, 1);
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layout->addWidget(gridCheckBox, 5 + curveCount, 0, 1, 2);
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// 确认和取消按钮
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QPushButton *okButton = new QPushButton("OK", this);
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@ -56,34 +54,30 @@ SettingsDialog::SettingsDialog(QWidget *parent) :
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buttonLayout->addWidget(okButton);
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buttonLayout->addWidget(cancelButton);
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// 将按钮布局添加到主布局
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layout->addLayout(buttonLayout, 8, 0, 1, 2);
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layout->addLayout(buttonLayout, 6 + curveCount, 0, 1, 2);
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// 设置对话框的主要布局
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setLayout(layout);
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// 连接按钮信号到槽
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connect(curveColor1Button, &QPushButton::clicked, this, [=](){
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QColor color = QColorDialog::getColor(Qt::blue, this);
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if (color.isValid()) {
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curveColor1Button->setStyleSheet(QString("background-color: %1").arg(color.name()));
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}
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});
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connect(curveColor2Button, &QPushButton::clicked, this, [=](){
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QColor color = QColorDialog::getColor(Qt::green, this);
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if (color.isValid()) {
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curveColor2Button->setStyleSheet(QString("background-color: %1").arg(color.name()));
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}
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});
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connect(backgroundColorButton, &QPushButton::clicked, this, [=](){
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QColor color = QColorDialog::getColor(Qt::white, this);
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QColor color = QColorDialog::getColor(backgroundColor, this);
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if (color.isValid()) {
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backgroundColorButton->setStyleSheet(QString("background-color: %1").arg(color.name()));
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backgroundColor = color;
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updateColorButton(backgroundColorButton, backgroundColor);
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}
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});
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for (int i = 0; i < curveColorButtons.size(); ++i) {
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connect(curveColorButtons[i], &QPushButton::clicked, this, [=]() {
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QColor color = QColorDialog::getColor(curveColors[i], this);
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if (color.isValid()) {
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curveColors[i] = color;
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updateColorButton(curveColorButtons[i], color);
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}
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});
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}
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connect(okButton, &QPushButton::clicked, this, &QDialog::accept);
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connect(cancelButton, &QPushButton::clicked, this, &QDialog::reject);
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}
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@ -96,17 +90,65 @@ double SettingsDialog::getYMin() const { return yMinLineEdit->text().toDouble();
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double SettingsDialog::getYMax() const { return yMaxLineEdit->text().toDouble(); }
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QColor SettingsDialog::getCurveColor(int index) const {
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switch (index) {
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case 0: return QColor(curveColor1Button->styleSheet().mid(17, 7));
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case 1: return QColor(curveColor2Button->styleSheet().mid(17, 7));
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default: return QColor(Qt::black);
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if (index >= 0 && index < curveColors.size()) {
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return curveColors[index];
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}
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return QColor(Qt::black);
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}
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QColor SettingsDialog::getBackgroundColor() const {
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return QColor(backgroundColorButton->styleSheet().mid(17, 7));
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return backgroundColor;
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}
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QVector<QColor> SettingsDialog::getCurveColors() const {
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return curveColors;
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}
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bool SettingsDialog::isGridVisible() const {
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return gridCheckBox->isChecked();
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}
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void SettingsDialog::setupCurveColorButtons(int curveCount) {
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QStringList labels;
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for (int i = 0; i < curveCount; ++i) {
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labels << QString("Curve %1 Color:").arg(i+1);
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}
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QGridLayout *layout = qobject_cast<QGridLayout*>(this->layout());
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qDeleteAll(curveColorButtons);
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curveColorButtons.clear();
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for (int i = 0; i < labels.size(); ++i) {
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QLabel *label = new QLabel(labels[i], this);
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QPushButton *button = new QPushButton(this);
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// 这里假设curveColors有足够的元素，如果不确定，填充默认颜色
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if (i < curveColors.size()) {
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updateColorButton(button, curveColors[i]);
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} else {
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updateColorButton(button, Qt::white);
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}
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layout->addWidget(label, 4 + i, 0);
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layout->addWidget(button, 4 + i, 1);
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curveColorButtons.append(button);
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}
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}
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void SettingsDialog::initializeCurveColors(int size, quint32 seed){
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curveColors.resize(size);
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QRandomGenerator random(seed);
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// 生成随机颜色并填充 QVector
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for (int i = 0; i < curveColors.size(); ++i) {
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int red = random.bounded(256);
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int green = random.bounded(256);
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int blue = random.bounded(256);
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curveColors[i] = QColor(red, green, blue);
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}
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}
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void SettingsDialog::updateColorButton(QPushButton *button, const QColor &color) {
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button->setStyleSheet(QString("background-color: %1").arg(color.name()));
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}
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@ -10,13 +10,15 @@
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QGridLayout>
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#include <QVector>
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#include <QRandomGenerator>
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class SettingsDialog : public QDialog
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{
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Q_OBJECT
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public:
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explicit SettingsDialog(QWidget *parent = nullptr);
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explicit SettingsDialog(int curveCount, QWidget *parent = nullptr);
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~SettingsDialog();
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double getXMin() const;
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@ -26,6 +28,7 @@ public:
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QColor getCurveColor(int index) const;
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QColor getBackgroundColor() const;
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QVector<QColor> getCurveColors() const;
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bool isGridVisible() const;
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@ -35,11 +38,17 @@ private:
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QLineEdit *yMinLineEdit;
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QLineEdit *yMaxLineEdit;
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QPushButton *curveColor1Button;
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QPushButton *curveColor2Button;
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QVector<QPushButton*> curveColorButtons;
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QPushButton *backgroundColorButton;
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QVector<QColor> curveColors;
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QColor backgroundColor;
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QCheckBox *gridCheckBox;
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void setupCurveColorButtons(int curveCount);
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void initializeCurveColors(int size, quint32 seed);
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void updateColorButton(QPushButton *button, const QColor &color);
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};
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#endif // SETTINGSDIALOG__H
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