--- /dev/null
+#include <iostream>
+#include <QPainterPath>
+#include <QBrush>
+#include <QPen>
+#include <QTimer>
+#include <QCloseEvent>
+#include <QMouseEvent>
+#include <QKeyEvent>
+#include <math.h>
+#include <limits.h>
+#include "proxguiqt.h"
+#include "proxgui.h"
+
+void ProxGuiQT::ShowGraphWindow(void)
+{
+ emit ShowGraphWindowSignal();
+}
+
+void ProxGuiQT::RepaintGraphWindow(void)
+{
+ emit RepaintGraphWindowSignal();
+}
+
+void ProxGuiQT::HideGraphWindow(void)
+{
+ emit HideGraphWindowSignal();
+}
+
+void ProxGuiQT::_ShowGraphWindow(void)
+{
+ if(!plotapp)
+ return;
+
+ if (!plotwidget)
+ plotwidget = new ProxWidget();
+
+ plotwidget->show();
+}
+
+void ProxGuiQT::_RepaintGraphWindow(void)
+{
+ if (!plotapp || !plotwidget)
+ return;
+
+ plotwidget->update();
+}
+
+void ProxGuiQT::_HideGraphWindow(void)
+{
+ if (!plotapp || !plotwidget)
+ return;
+
+ plotwidget->hide();
+}
+
+void ProxGuiQT::MainLoop()
+{
+ plotapp = new QApplication(argc, argv);
+
+ connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow()));
+ connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow()));
+ connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow()));
+
+ plotapp->exec();
+}
+
+ProxGuiQT::ProxGuiQT(int argc, char **argv) : plotapp(NULL), plotwidget(NULL),
+ argc(argc), argv(argv)
+{
+}
+
+ProxGuiQT::~ProxGuiQT(void)
+{
+ if (plotwidget) {
+ delete plotwidget;
+ plotwidget = NULL;
+ }
+
+ if (plotapp) {
+ plotapp->quit();
+ delete plotapp;
+ plotapp = NULL;
+ }
+}
+
+void ProxWidget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter(this);
+ QPainterPath penPath, whitePath, greyPath, cursorAPath, cursorBPath;
+ QRect r;
+ QBrush brush(QColor(100, 255, 100));
+ QPen pen(QColor(100, 255, 100));
+
+ painter.setFont(QFont("Arial", 10));
+
+ if(GraphStart < 0) {
+ GraphStart = 0;
+ }
+
+ r = rect();
+
+ painter.fillRect(r, QColor(0, 0, 0));
+
+ whitePath.moveTo(r.left() + 40, r.top());
+ whitePath.lineTo(r.left() + 40, r.bottom());
+
+ int zeroHeight = r.top() + (r.bottom() - r.top()) / 2;
+
+ greyPath.moveTo(r.left(), zeroHeight);
+ greyPath.lineTo(r.right(), zeroHeight);
+ painter.setPen(QColor(100, 100, 100));
+ painter.drawPath(greyPath);
+
+ int startMax =
+ (GraphTraceLen - (int)((r.right() - r.left() - 40) / GraphPixelsPerPoint));
+ if(startMax < 0) {
+ startMax = 0;
+ }
+ if(GraphStart > startMax) {
+ GraphStart = startMax;
+ }
+
+ int absYMax = 1;
+
+ int i;
+ for(i = GraphStart; ; i++) {
+ if(i >= GraphTraceLen) {
+ break;
+ }
+ if(fabs((double)GraphBuffer[i]) > absYMax) {
+ absYMax = (int)fabs((double)GraphBuffer[i]);
+ }
+ int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint);
+ if(x > r.right()) {
+ break;
+ }
+ }
+
+ absYMax = (int)(absYMax*1.2 + 1);
+
+ // number of points that will be plotted
+ int span = (int)((r.right() - r.left()) / GraphPixelsPerPoint);
+ // one label every 100 pixels, let us say
+ int labels = (r.right() - r.left() - 40) / 100;
+ if(labels <= 0) labels = 1;
+ int pointsPerLabel = span / labels;
+ if(pointsPerLabel <= 0) pointsPerLabel = 1;
+
+ int yMin = INT_MAX;
+ int yMax = INT_MIN;
+ int yMean = 0;
+ int n = 0;
+
+ for(i = GraphStart; ; i++) {
+ if(i >= GraphTraceLen) {
+ break;
+ }
+ int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint);
+ if(x > r.right() + GraphPixelsPerPoint) {
+ break;
+ }
+
+ int y = GraphBuffer[i];
+ if(y < yMin) {
+ yMin = y;
+ }
+ if(y > yMax) {
+ yMax = y;
+ }
+ yMean += y;
+ n++;
+
+ y = (y * (r.top() - r.bottom()) / (2*absYMax)) + zeroHeight;
+ if(i == GraphStart) {
+ penPath.moveTo(x, y);
+ } else {
+ penPath.lineTo(x, y);
+ }
+
+ if(GraphPixelsPerPoint > 10) {
+ QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3));
+ painter.fillRect(f, brush);
+ }
+
+ if(((i - GraphStart) % pointsPerLabel == 0) && i != GraphStart) {
+ whitePath.moveTo(x, zeroHeight - 3);
+ whitePath.lineTo(x, zeroHeight + 3);
+
+ char str[100];
+ sprintf(str, "+%d", (i - GraphStart));
+
+ painter.setPen(QColor(255, 255, 255));
+ QRect size;
+ QFontMetrics metrics(painter.font());
+ size = metrics.boundingRect(str);
+ painter.drawText(x - (size.right() - size.left()), zeroHeight + 9, str);
+
+ penPath.moveTo(x,y);
+ }
+
+ if(i == CursorAPos || i == CursorBPos) {
+ QPainterPath *cursorPath;
+
+ if(i == CursorAPos) {
+ cursorPath = &cursorAPath;
+ } else {
+ cursorPath = &cursorBPath;
+ }
+ cursorPath->moveTo(x, r.top());
+ cursorPath->lineTo(x, r.bottom());
+ penPath.moveTo(x, y);
+ }
+ }
+
+ if(n != 0) {
+ yMean /= n;
+ }
+
+ painter.setPen(QColor(255, 255, 255));
+ painter.drawPath(whitePath);
+ painter.setPen(pen);
+ painter.drawPath(penPath);
+ painter.setPen(QColor(255, 255, 0));
+ painter.drawPath(cursorAPath);
+ painter.setPen(QColor(255, 0, 255));
+ painter.drawPath(cursorBPath);
+
+ char str[100];
+ sprintf(str, "@%d max=%d min=%d mean=%d n=%d/%d dt=%d [%.3f]",
+ GraphStart, yMax, yMin, yMean, n, GraphTraceLen,
+ CursorBPos - CursorAPos, (CursorBPos - CursorAPos)/CursorScaleFactor);
+
+ painter.setPen(QColor(255, 255, 255));
+ painter.drawText(50, r.bottom() - 20, str);
+}
+
+ProxWidget::ProxWidget(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1)
+{
+ resize(600, 500);
+
+ QPalette palette(QColor(0,0,0,0));
+ palette.setColor(QPalette::WindowText, QColor(255,255,255));
+ palette.setColor(QPalette::Text, QColor(255,255,255));
+ palette.setColor(QPalette::Button, QColor(100, 100, 100));
+ setPalette(palette);
+ setAutoFillBackground(true);
+}
+
+void ProxWidget::closeEvent(QCloseEvent *event)
+{
+ event->ignore();
+ this->hide();
+}
+
+void ProxWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ int x = event->x();
+ x -= 40;
+ x = (int)(x / GraphPixelsPerPoint);
+ x += GraphStart;
+ if((event->buttons() & Qt::LeftButton)) {
+ CursorAPos = x;
+ } else if (event->buttons() & Qt::RightButton) {
+ CursorBPos = x;
+ }
+
+
+ this->update();
+}
+
+void ProxWidget::keyPressEvent(QKeyEvent *event)
+{
+ switch(event->key()) {
+ case Qt::Key_Down:
+ if(GraphPixelsPerPoint <= 50) {
+ GraphPixelsPerPoint *= 2;
+ }
+ break;
+
+ case Qt::Key_Up:
+ if(GraphPixelsPerPoint >= 0.02) {
+ GraphPixelsPerPoint /= 2;
+ }
+ break;
+
+ case Qt::Key_Right:
+ if(GraphPixelsPerPoint < 20) {
+ GraphStart += (int)(20 / GraphPixelsPerPoint);
+ } else {
+ GraphStart++;
+ }
+ break;
+
+ case Qt::Key_Left:
+ if(GraphPixelsPerPoint < 20) {
+ GraphStart -= (int)(20 / GraphPixelsPerPoint);
+ } else {
+ GraphStart--;
+ }
+ break;
+
+ default:
+ QWidget::keyPressEvent(event);
+ return;
+ break;
+ }
+
+ this->update();
+}