使用QT开发的无线电相关基本图形，主要包括频谱图，瀑布图，波形图等

#include <WRCharting/WRDirMapControl.h> #include "WRDirMapDataSourceT.h" #define WRDIRMAPFIRSTGAUGE (WRDirMapGaugeElement*)(m_hScroll->next()) //执行控件的初始化。 void WRDirMapControl::initialize(void) { writeFlag(WRDIRMAPCONTROL_HOLDSTATUS, false); m_backColor.update(98, 108, 123); m_dataProcMethod = ShowMaxValue; m_vAxis = new WRDirMapVAxisElement(); m_hAxis = new WRDirMapHAxisElement(); m_vScroll = new WRDirMapVScrollElement(); m_hScroll = new WRDirMapHScrollElement(); m_dataView = new WRDirMapDataViewElement(); addLast(m_dataView); addLast(m_vAxis); addLast(m_hAxis); addLast(m_vScroll); addLast(m_hScroll); } //清理当前对象所占用的相关资源。 WRDirMapControl::~WRDirMapControl(void) { m_backSource->release(); m_currSource->release(); } //当布局时调用此方法。 void WRDirMapControl::onLayout(const WRRect& rect) { WRChartControl::arrange(rect, m_hAxis, m_vAxis, m_hScroll, m_vScroll, m_dataView); //执行测量元旦布局 WRDirMapGaugeElement* gauge = WRDIRMAPFIRSTGAUGE; while (gauge) { gauge->arrange(); gauge =(WRDirMapGaugeElement*) gauge->next(); } } //键盘按下处理，如果需要重绘，则返回True。 bool WRDirMapControl::onKeyDown(const QKeyEvent& e) { if (((e.modifiers() & Qt::ControlModifier) == Qt::ControlModifier)) { if (e.key() == Qt::Key_Left) { if (m_dataView->width() >= m_showDataRange.pointCount()) { if (m_showDataRange.pointBegin() > 0) { changeShowDataPointRange(WRChartSampleRange(m_showDataRange.pointBegin() - 1, m_showDataRange.pointCount())); return true; } } else { WRChartSampleRange showPointRange(m_showDataRange.pointRange()); doMouseMoveH(showPointRange, 1, 0, m_dataView->width()); if (changeShowDataPointRange(showPointRange)) { return true; } } } else if (e.key() == Qt::Key_Right) { if (m_dataView->width() >= m_showDataRange.pointCount()) { if (m_showDataRange.pointBegin() + m_showDataRange.pointCount() < m_currSource->points()) { changeShowDataPointRange(WRChartSampleRange(m_showDataRange.pointBegin() + 1, m_showDataRange.pointCount())); return true; } } else { WRChartSampleRange showPointRange(m_showDataRange.pointRange()); doMouseMoveH(showPointRange, 0, 1, m_dataView->width()); if (changeShowDataPointRange(showPointRange)) { return true; } } } else if (e.key() == Qt::Key_Up) { WRChartDValueRange showAngleRange(m_showDataRange.angleRange()); doMouseMoveV(showAngleRange, 1, 0, m_dataView->height()); if (changeShowDataAngleRange(showAngleRange)) { return true; } } else if (e.key() == Qt::Key_Down) { WRChartDValueRange showAngleRange(m_showDataRange.angleRange()); doMouseMoveV(showAngleRange, 0, 1, m_dataView->height()); if (changeShowDataAngleRange(showAngleRange)) { return true; } } } return false; } //键盘释放处理，如果需要重绘，则返回True。 bool WRDirMapControl::onKeyUp(const QKeyEvent&) { return false; } //执行绘制处理操作。 void WRDirMapControl::onPaint(QPainter& painter) { painter.fillRect(rect(), m_backColor);//填充背景 } //执行所有绘制后，如果元素捕获了鼠标或者鼠标正处于此元素之上，将调用此方法进行相应的绘制处理。 void WRDirMapControl::onPaintMouseFeedback(QPainter&) { //add code here } //验证图形，如果需要重新绘制，则返回True。 bool WRDirMapControl::validate(void) { bool changed = false; //验证数据源 WRDirMapDataSource* dataSource = 0; if (!holdStatus()) { WRSynch synch(m_mutex); if (m_backSource != m_currSource) { changed = true; dataSource = m_currSource; m_currSource = m_backSource; m_currSource->addRef(); m_currSource->validate(); m_dataView->invalidate(); } else { long version = m_currSource->version(); if (m_currSource->validate() != version) { changed = true; m_dataView->invalidate(); } } } if (dataSource) { dataSource->release(); emit dataChanged(); resetShowDataRange(WRDirMapDataRange(0, m_currSource->points(), m_currSource->angleMinValue(), m_currSource->angleMaxValue())); m_hAxis->invalidate(); m_vAxis->invalidate(); } return changed; } //当显示数据范围改变后调用此方法 。 void WRDirMapControl::onShowDataRangeChanged() { if (effect()) { //WRDirMapGaugeElement* element = WRDIRMAPFIRSTGAUGE; //while (element) //{ // if (element->type() == WRDirMapGaugeElement::Block) // { // element->arrange(); // } // element =(WRDirMapGaugeElement*) element->next(); //} } m_dataView->onShowDataRangeChanged(); invalidate(); } //当显示数据点范围改变后调用此方法。 void WRDirMapControl::onShowDataPointRangeChanged() { if (effect()) { WRDirMapGaugeElement* element = WRDIRMAPFIRSTGAUGE; while (element) { if (element->type() == WRDirMapGaugeElement::DataPointLine) { element->arrange(); } element =(WRDirMapGaugeElement*) element->next(); } } m_hAxis->invalidate(); m_dataView->onShowDataPointRangeChanged(); } //当显示数据角度范围改变后调用此方法。 void WRDirMapControl::onShowDataAngleRangeChanged() { if (effect()) { WRDirMapGaugeElement* element = WRDIRMAPFIRSTGAUGE; while (element) { if (element->type() == WRDirMapGaugeElement::DataAngleLine) { element->arrange(); } element =(WRDirMapGaugeElement*) element->next(); } } m_vAxis->invalidate(); m_dataView->onShowDataAngleRangeChanged(); } //设置显示数据范围。 void WRDirMapControl::setShowDataRange(const WRDirMapDataRange& value) { bool change = false; if (m_showDataRange.pointRange(value.pointRange())) { onShowDataPointRangeChanged(); emit showDataPointRangeChanged(m_showDataRange.pointRange()); change = true; } if (m_showDataRange.angleRange(value.angleRange())) { onShowDataAngleRangeChanged(); emit showDataAngleRangeChanged(m_showDataRange.angleRange()); change = true; } if (change) { onShowDataRangeChanged(); emit showDataRangeChanged(m_showDataRange); } } //设置数据点显示数据范围。 void WRDirMapControl::setShowDataPointRange(const WRChartSampleRange& value) { if (m_showDataRange.pointRange(value)) { onShowDataPointRangeChanged(); onShowDataRangeChanged(); emit showDataPointRangeChanged(m_showDataRange.pointRange()); emit showDataRangeChanged(m_showDataRange); } } //设置数据角度显示数据范围。 void WRDirMapControl::setShowDataAngleRange(const WRChartDValueRange& value) { if (m_showDataRange.angleRange(value)) { onShowDataAngleRangeChanged(); onShowDataRangeChanged(); emit showDataAngleRangeChanged(m_showDataRange.angleRange()); emit showDataRangeChanged(m_showDataRange); } } //设置显示数据范围。 bool WRDirMapControl::showDataRange(const WRDirMapDataRange& value) { bool change = false; if (m_showDataRange.pointRange(value.pointRange())) { onShowDataPointRangeChanged(); emit showDataPointRangeChanged(m_showDataRange.pointRange()); change = true; } if (m_showDataRange.angleRange(value.angleRange())) { onShowDataAngleRangeChanged(); emit showDataAngleRangeChanged(m_showDataRange.angleRange()); change = true; } if (change) { onShowDataRangeChanged(); emit showDataRangeChanged(m_showDataRange); return true; } return