145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
#include "panels/chart/RawDataChartView.hpp"
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#include "panels/chart/ColorBarWidget.hpp"
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#include "panels/chart/ScatterPlotItem.hpp"
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#include <QComboBox>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QToolButton>
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#include <QVBoxLayout>
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#include <qwt_plot.h>
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#include <qwt_plot_canvas.h>
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#include <qwt_plot_panner.h>
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#include <qwt_plot_magnifier.h>
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#include <qwt_plot_marker.h>
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namespace geopro::app {
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RawDataChartView::RawDataChartView(QWidget* parent) : QWidget(parent) {
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auto* lay = new QVBoxLayout(this);
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lay->setContentsMargins(0, 0, 0, 0);
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lay->setSpacing(0);
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// ---- 工具条 ----
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auto* toolbar = new QWidget(this);
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auto* tbLay = new QHBoxLayout(toolbar);
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tbLay->setContentsMargins(4, 4, 4, 4);
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tbLay->setSpacing(4);
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auto* btnGrid = new QToolButton(toolbar);
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btnGrid->setText(QStringLiteral("网格"));
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auto* btnColorScale = new QToolButton(toolbar);
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btnColorScale->setText(QStringLiteral("色阶配置"));
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auto* lblCurrentChart = new QLabel(QStringLiteral("当前图形："), toolbar);
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chartTypeCombo_ = new QComboBox(toolbar);
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chartTypeCombo_->addItem(QStringLiteral("散点图"));
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auto* btnSaveAs = new QToolButton(toolbar);
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btnSaveAs->setText(QStringLiteral("另存为"));
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tbLay->addWidget(btnGrid);
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tbLay->addWidget(btnColorScale);
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tbLay->addWidget(lblCurrentChart);
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tbLay->addWidget(chartTypeCombo_);
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tbLay->addWidget(btnSaveAs);
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tbLay->addStretch();
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lay->addWidget(toolbar);
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// ---- QwtPlot（stretch 填满剩余空间）----
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plot_ = new QwtPlot(this);
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plot_->setObjectName(QStringLiteral("rawPlotArea"));
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// x 轴顶部，关闭底部 x 轴
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plot_->enableAxis(QwtPlot::xTop, true);
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plot_->enableAxis(QwtPlot::xBottom, false);
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plot_->enableAxis(QwtPlot::yLeft, true);
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// 白底浅色（对齐原版 web 图表，与 App 暗色主题独立）：画布白、轴文字深灰。
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plot_->setCanvasBackground(QBrush(Qt::white));
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plot_->setAutoFillBackground(true);
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{
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QPalette pal = plot_->palette();
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pal.setColor(QPalette::Window, Qt::white);
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pal.setColor(QPalette::WindowText, QColor(90, 90, 90));
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pal.setColor(QPalette::Text, QColor(90, 90, 90));
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plot_->setPalette(pal);
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}
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// 过原点零线（对齐原版 zeroline：x=0 竖线 + y=0 横线 → "四象限"观感）。
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auto* zeroX = new QwtPlotMarker();
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zeroX->setLineStyle(QwtPlotMarker::VLine);
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zeroX->setXValue(0.0);
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zeroX->setLinePen(QColor(180, 180, 180), 1.0);
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zeroX->setXAxis(QwtPlot::xTop);
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zeroX->attach(plot_);
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auto* zeroY = new QwtPlotMarker();
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zeroY->setLineStyle(QwtPlotMarker::HLine);
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zeroY->setYValue(0.0);
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zeroY->setLinePen(QColor(180, 180, 180), 1.0);
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zeroY->attach(plot_);
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// 交互：Panner（左键拖动平移）+ Magnifier（滚轮缩放）
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auto* panner = new QwtPlotPanner(plot_->canvas());
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panner->setMouseButton(Qt::LeftButton);
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auto* magnifier = new QwtPlotMagnifier(plot_->canvas());
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// 反转滚轮方向：Qwt 默认 wheelFactor=0.9 → 上滚缩小；取倒数使「上滚=放大」（常规习惯）。
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magnifier->setWheelFactor(1.0 / 0.9);
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// 允许随停靠面板自由收缩（不强制最小宽度→不出横向滚动条，对齐原版响应式填充）。
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plot_->setMinimumSize(0, 0);
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lay->addWidget(plot_, 1);
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// ---- 独立色阶条（固定高 36px，QwtPlot 的兄弟 widget）----
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colorBar_ = new ColorBarWidget(this);
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colorBar_->setObjectName(QStringLiteral("rawColorScaleBar"));
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lay->addWidget(colorBar_);
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}
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QWidget* RawDataChartView::plotArea() const {
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return plot_;
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}
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void RawDataChartView::setData(
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const geopro::controller::DatasetDetailController::ChartData& d) {
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data_ = d;
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if (d.scatterScale.empty()) return;
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// 重建 ColorMapService（旧的 scatterItem 已被 QwtPlot detach/delete）
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delete colorSvc_;
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colorSvc_ = new ColorMapService(d.scatterScale);
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// 卸载旧散点项
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if (scatterItem_) {
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scatterItem_->detach();
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// QwtPlot 不拥有 item，需要我们释放
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delete scatterItem_;
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scatterItem_ = nullptr;
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}
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// 新建散点项并挂到 plot
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scatterItem_ = new ScatterPlotItem();
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scatterItem_->setData(d.scatter, colorSvc_);
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scatterItem_->attach(plot_);
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// 按数据包围盒设置轴范围
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QRectF bbox = scatterItem_->boundingRect();
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if (!bbox.isEmpty()) {
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plot_->setAxisScale(QwtPlot::xTop, bbox.left(), bbox.right());
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plot_->setAxisScale(QwtPlot::yLeft, bbox.top(), bbox.bottom());
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}
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plot_->replot();
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// 更新色阶条
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colorBar_->setColorScale(d.scatterScale);
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}
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} // namespace geopro::app
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