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-rw-r--r--qfunctionconfigurator/qfunctionconfigurator.cpp1421
1 files changed, 700 insertions, 721 deletions
diff --git a/qfunctionconfigurator/qfunctionconfigurator.cpp b/qfunctionconfigurator/qfunctionconfigurator.cpp
index fe2ad49d..e143a536 100644
--- a/qfunctionconfigurator/qfunctionconfigurator.cpp
+++ b/qfunctionconfigurator/qfunctionconfigurator.cpp
@@ -1,721 +1,700 @@
-/********************************************************************************
-* FaceTrackNoIR This program is a private project of some enthusiastic *
-* gamers from Holland, who don't like to pay much for *
-* head-tracking. *
-* *
-* Copyright (C) 2012 Wim Vriend (Developing) *
-* Ron Hendriks (Researching and Testing) *
-* *
-* Homepage http://facetracknoir.sourceforge.net/home/default.htm *
-* *
-* This program is free software; you can redistribute it and/or modify it *
-* under the terms of the GNU General Public License as published by the *
-* Free Software Foundation; either version 3 of the License, or (at your *
-* option) any later version. *
-* *
-* This program is distributed in the hope that it will be useful, but *
-* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
-* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
-* more details. *
-* *
-* You should have received a copy of the GNU General Public License along *
-* with this program; if not, see <http://www.gnu.org/licenses/>. *
-* *
-* The FunctionConfigurator was made by Stanislaw Halik, and adapted to *
-* FaceTrackNoIR. *
-* *
-* All credits for this nice piece of code should go to Stanislaw. *
-* *
-* Copyright (c) 2011-2012, Stanislaw Halik <sthalik@misaki.pl> *
-* Permission to use, copy, modify, and/or distribute this *
-* software for any purpose with or without fee is hereby granted, *
-* provided that the above copyright notice and this permission *
-* notice appear in all copies. *
-********************************************************************************/
-/*
- Modifications (last one on top):
- 20120830 - WVR: Changed functionality a bit. Now only draw the handles, when the function is drawn.
- Only check mouseMoves, when they occur 'in range'. Redraw the curve, when a resize occurs.
- Somehow, the curve was not drawn correctly, when this was not done (all points were too high).
- After a 'Reset' this would disappear...
- 20120828 - WVR: Removed bSkipText, which was used to not show a number below each vertical gridline.
-*/
-#include "qfunctionconfigurator.h"
-#include <QPainter>
-#include <QPaintEvent>
-#include <QPainterPathStroker>
-#include <QPainterPath>
-#include <QBrush>
-#include <QFileDialog>
-#include <QPen>
-#include <QMessageBox>
-#include <QImage>
-#include <QPixmap>
-#include <QTimer>
-
-#include <QtDebug>
-
-#include <math.h>
-
-QFunctionConfigurator::~QFunctionConfigurator()
-{
- WaitForSingleObject(_mutex, INFINITE);
- CloseHandle(_mutex);
- delete btnReset;
-}
-
-static const int pointSize = 5;
-
-QFunctionConfigurator::QFunctionConfigurator(QWidget *parent)
- : QWidget(parent)
-{
-
- //
- // Defaults, for when the widget has no values different from the domXML()
- //
- MaxInput = 50; // Maximum input limit
- MaxOutput = 180; // Maximum output limit
- pPerEGU_Output = 1; // Number of pixels, per EGU
- pPerEGU_Input = 4; // Number of pixels, per EGU
- gDistEGU_Input = 5; // Distance of gridlines
- gDistEGU_Output = 10; // Distance of gridlines
-
-
- // Change compared to BezierConfigurator: X = horizontal (input), Y = vertical (output)
- // This will require the Curve-Dialog to be higher (which was the reason it was reversed in the first place..)
- range = QRectF(40, 20, MaxInput * pPerEGU_Input, MaxOutput * pPerEGU_Output);
-
- setMouseTracking(true);
- moving = NULL; // Pointer to the curve-point, that's being moved
- movingPoint = 1; // Index of that same point
-
- //
- // Add a Reset-button
- //
- btnReset = new QPushButton(QString("Reset"), this);
- connect(btnReset, SIGNAL(clicked()), this, SLOT(resetCurve()));
-
- //
- // Variables for FunctionConfig
- //
- _config = 0;
- _points = QList<QPointF>();
- _draw_points = QList<QPointF>();
- _mutex = CreateMutex(NULL, false, NULL);
- _draw_background = true;
- _draw_function = true;
-
-// qDebug() << "QFunctionConfigurator::QFunctionConfigurator object created.";
-
-}
-
-//
-// Attach an existing FunctionConfig to the Widget.
-//
-void QFunctionConfigurator::setConfig(FunctionConfig* config, QString settingsFile) {
-QPointF currentPoint;
-QPointF drawPoint;
-qreal x;
-
- WaitForSingleObject(_mutex, INFINITE);
- _config = config;
- _points = config->getPoints();
- strSettingsFile = settingsFile; // Remember for Reset()
-
- qDebug() << "QFunctionConfigurator::setConfig" << config->getTitle();
- setCaption(config->getTitle());
-
- //
- // Get the Function Points, one for each pixel in the horizontal range.
- // If the curve does not change, there is no need to run this code every time (it slows down drawing).
- //
- _draw_points.clear();
- for (int j = 0; j < MaxInput * pPerEGU_Input; j++) {
- //
- // Weird: not casting to float causes C++ to round the number...
- //
- x = (float) j / (float) pPerEGU_Input;
- currentPoint.setX ( x );
- currentPoint.setY (_config->getValue( x ));
- drawPoint = graphicalizePoint(currentPoint, "setConfig");
- if (withinRect(drawPoint, range)) {
- _draw_points.append(drawPoint);
-// qDebug() << "QFunctionConfigurator::setConfig _draw_Point to add = " << drawPoint;
- }
- }
-
- ReleaseMutex(_mutex);
- _draw_function = true;
- this->update();
-}
-
-//
-// Load the FunctionConfig (points) from the INI-file.
-//
-void QFunctionConfigurator::loadSettings(QString settingsFile) {
-
- QSettings iniFile( settingsFile, QSettings::IniFormat ); // Application settings (in INI-file)
- strSettingsFile = settingsFile; // Remember for Reset()
- qDebug() << "QFunctionConfigurator::loadSettings = " << settingsFile;
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
- _config->loadSettings(iniFile);
- setConfig(_config, settingsFile);
- }
- ReleaseMutex(_mutex);
-}
-
-//
-// Save the FunctionConfig (points) to the INI-file.
-//
-void QFunctionConfigurator::saveSettings(QString settingsFile) {
- QSettings iniFile( settingsFile, QSettings::IniFormat ); // Application settings (in INI-file)
- strSettingsFile = settingsFile; // Remember for Reset()
- qDebug() << "QFunctionConfigurator::saveSettings = " << settingsFile;
-
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
- _config->saveSettings(iniFile);
- }
- ReleaseMutex(_mutex);
-}
-
-//
-// Draw the Background for the graph, the gridlines and the gridpoints.
-// The static objects are drawn on a Pixmap, so it does not have to be repeated every paintEvent. Hope this speeds things up...
-//
-void QFunctionConfigurator::drawBackground(const QRectF &fullRect)
-{
-int i;
-QRect scale;
-
- qDebug() << "QFunctionConfigurator::drawBackground.";
-
- _background = QPixmap(fullRect.width(), fullRect.height());
- QPainter painter(&_background);
-
- painter.save();
- painter.setRenderHint(QPainter::Antialiasing);
- painter.fillRect(fullRect, colBackground);
- QColor bg_color(112, 154, 209);
- painter.fillRect(range, bg_color);
-
- QFont font("ComicSans", 4);
- font.setPointSize(8);
- painter.setFont(font);
-
- QPen pen(QColor(55, 104, 170, 127), 1, Qt::SolidLine);
-
- //
- // Draw the Caption
- //
- if (_config) {
- strCaption = _config->getTitle();
- }
-
- scale.setCoords(range.left(), 0, range.right(), 20);
- painter.drawText(scale, Qt::AlignCenter, strCaption);
-
- //
- // Draw the horizontal grid
- //
- for (i = range.bottom() - gDistEGU_Output * pPerEGU_Output; i >= range.top(); i -= gDistEGU_Output * pPerEGU_Output) {
- drawLine(&painter, QPointF(40, i), QPointF(range.right(), i), pen);
- scale.setCoords(0, i - 5, range.left() - 5, i + 5);
- painter.drawText(scale, Qt::AlignRight, tr("%1").arg(((range.bottom() - i))/pPerEGU_Output));
- }
-
- //
- // Draw the vertical guidelines
- //
- for (i = range.left(); i <= range.right(); i += gDistEGU_Input * pPerEGU_Input) {
- drawLine(&painter, QPointF(i, range.top()), QPointF(i, range.bottom()), pen);
- scale.setCoords(i - 10, range.bottom() + 2, i + 10, range.bottom() + 15);
- painter.drawText(scale, Qt::AlignCenter, tr("%1").arg(abs(((range.left() - i))/pPerEGU_Input)));
- }
-
- scale.setCoords(range.left(), range.bottom() + 20, range.right(), range.bottom() + 35);
- painter.drawText(scale, Qt::AlignRight, strInputEGU);
-
- //
- // Draw the EGU of the vertical axis (vertically!)
- //
- font.setPointSize(10);
- painter.translate(range.topLeft().x() - 35, range.topLeft().y());
- painter.rotate(90);
- painter.drawText(0,0,strOutputEGU );
-
- //
- // Draw the two axis
- //
- pen.setWidth(2);
- pen.setColor( Qt::black );
- drawLine(&painter, range.topLeft() - QPointF(2,0), range.bottomLeft() - QPointF(2,0), pen);
- drawLine(&painter, range.bottomLeft(), range.bottomRight(), pen);
-
- painter.restore();
-}
-
-
-//
-// Draw the Function for the graph, on a Pixmap.
-//
-void QFunctionConfigurator::drawFunction(const QRectF &fullRect)
-{
- if (!_config)
- return;
-int i;
-QPointF prevPoint;
-QPointF currentPoint;
-
- //
- // Use the background picture to draw on.
- // ToDo: find out how to add Pixmaps, without getting it all green...
- //
- _function = QPixmap(_background);
- QPainter painter(&_function);
-
- painter.save();
- painter.setRenderHint(QPainter::Antialiasing, false);
-
- //
- // Draw the handles for the Points
- //
- for (i = 0; i < _points.size(); i++) {
- currentPoint = graphicalizePoint( _points[i], "drawFunction handles" ); // Get the next point and convert it to Widget measures
- drawPoint(&painter, currentPoint, QColor(200, 200, 210, 120));
- lastPoint = currentPoint; // Remember which point is the rightmost in the graph
-//qDebug() << "QFunctionConfigurator::paintEvent, drawing handle for " << currentPoint;
- }
-
-
- QPen pen(colBezier, 2, Qt::SolidLine);
-
- prevPoint = graphicalizePoint( QPointF(0,0), "drawFunction lines" ); // Start at the Axis
- double max = maxInputEGU();
- QPointF prev = graphicalizePoint(QPointF(0, 0));
- double step = 1 / (double) pixPerEGU_Input();
- for (double i = 0; i < max; i += step) {
- double val = _config->getValue(i);
- QPointF cur = graphicalizePoint(QPointF(i, val));
- drawLine(&painter, prev, cur, pen);
- prev = cur;
- }
- painter.restore();
-}
-
-//
-// The Widget paints the surface every x msecs.
-//
-void QFunctionConfigurator::paintEvent(QPaintEvent *e)
-{
-QPointF prevPoint;
-QPointF currentPoint;
-QPointF actualPos;
-int i;
-
-// qDebug() << "QFunctionConfigurator::paintEvent.";
-
- QPainter p(this);
- p.setRenderHint(QPainter::Antialiasing);
- p.setClipRect(e->rect());
-
- if (_draw_background) {
- drawBackground(e->rect()); // Draw the static parts on a Pixmap
- p.drawPixmap(0, 0, _background); // Paint the background
- _draw_background = false;
-
- btnReset->move(e->rect().left(), e->rect().bottom() - btnReset->height() - 2);
- }
-
- if (_draw_function) {
- drawFunction(e->rect()); // Draw the Function on a Pixmap
- _draw_function = false;
- }
- p.drawPixmap(0, 0, _function); // Always draw the background and the function
-
- QPen pen(Qt::white, 1, Qt::SolidLine);
-
- //
- // Draw the Points, that make up the Curve
- //
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
-
- //
- // When moving, also draw a sketched version of the Function.
- //
- if (moving) {
- prevPoint = graphicalizePoint( QPointF(0,0), "paintEvent moving" ); // Start at the Axis
- for (i = 0; i < _points.size(); i++) {
- currentPoint = graphicalizePoint( _points[i], "paintEvent moving" ); // Get the next point and convert it to Widget measures
- drawLine(&p, prevPoint, currentPoint, pen);
- prevPoint = currentPoint;
-// qDebug() << "QFunctionConfigurator::paintEvent, drawing while moving " << currentPoint;
- }
-
- //
- // When moving, also draw a few help-lines, so positioning the point gets easier.
- //
- pen.setWidth(1);
- pen.setColor( Qt::white );
- pen.setStyle( Qt::DashLine );
- actualPos = graphicalizePoint(*moving, "paintEvent moving help line(s)");
- drawLine(&p, QPoint(range.left(), actualPos.y()), QPoint(actualPos.x(), actualPos.y()), pen);
- drawLine(&p, QPoint(actualPos.x(), actualPos.y()), QPoint(actualPos.x(), range.bottom()), pen);
- }
-
- //
- // If the Tracker is active, the 'Last Point' it requested is recorded.
- // Show that point on the graph, with some lines to assist.
- // This new feature is very handy for tweaking the curves!
- //
- if (_config->getLastPoint( currentPoint )) {
-
-// qDebug() << "QFunctionConfigurator::paintEvent, drawing tracked Point " << currentPoint;
-
- actualPos = graphicalizePoint( currentPoint, "paintEvent tracking" );
- drawPoint(&p, actualPos, QColor(255, 0, 0, 120));
-
- pen.setWidth(1);
- pen.setColor( Qt::black );
- pen.setStyle( Qt::SolidLine );
- drawLine(&p, QPoint(range.left(), actualPos.y()), QPoint(actualPos.x(), actualPos.y()), pen);
- drawLine(&p, QPoint(actualPos.x(), actualPos.y()), QPoint(actualPos.x(), range.bottom()), pen);
- }
-
- }
- ReleaseMutex(_mutex);
-
- //
- // Draw the delimiters
- //
- pen.setWidth(1);
- pen.setColor( Qt::white );
- pen.setStyle( Qt::SolidLine );
- drawLine(&p, QPoint(lastPoint.x(), range.top()), QPoint(lastPoint.x(), range.bottom()), pen);
- drawLine(&p, QPoint(range.left(), lastPoint.y()), QPoint(range.right(), lastPoint.y()), pen);
-
- QTimer::singleShot(250, this, SLOT(update()));
-}
-
-//
-// Draw the handle, to move the Bezier-curve.
-//
-void QFunctionConfigurator::drawPoint(QPainter *painter, const QPointF &pos, QColor colBG )
-{
- painter->save();
- painter->setPen(QColor(50, 100, 120, 200));
- painter->setBrush( colBG );
- painter->drawEllipse(QRectF(pos.x() - pointSize,
- pos.y() - pointSize,
- pointSize*2, pointSize*2));
- painter->restore();
-}
-
-void QFunctionConfigurator::drawLine(QPainter *painter, const QPointF &start, const QPointF &end, QPen pen)
-{
- painter->save();
- painter->setPen(pen);
- painter->setBrush(Qt::NoBrush);
- painter->drawLine(start, end);
- painter->restore();
-}
-
-//
-// If the mousebutton is pressed, check if it is inside one of the Points.
-// If so: start moving that Point, until mouse release.
-//
-void QFunctionConfigurator::mousePressEvent(QMouseEvent *e)
-{
- //
- // First: check the left mouse-button
- //
- if (e->button() == Qt::LeftButton) {
-
- //
- // Check to see if the cursor is touching one of the points.
- //
- bool bTouchingPoint = false;
- movingPoint = -1;
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
-
- for (int i = 0; i < _points.size(); i++) {
- if ( markContains( graphicalizePoint( _points[i], "mousePressEvent markContains" ), e->pos() ) ) {
- bTouchingPoint = true;
- moving = &_points[i];
- movingPoint = i;
- }
- }
-
- //
- // If the Left Mouse-button was clicked without touching a Point, add a new Point
- //
- if (!bTouchingPoint) {
- if (withinRect(e->pos(), range)) {
- _config->addPoint(normalizePoint(e->pos()));
- setConfig(_config, strSettingsFile);
- moving = NULL;
- emit CurveChanged( true );
- }
- }
- }
- ReleaseMutex(_mutex);
- }
-
- //
- // Then: check the right mouse-button
- //
- if (e->button() == Qt::RightButton) {
-
- //
- // Check to see if the cursor is touching one of the points.
- //
- moving = NULL;
- movingPoint = -1;
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
-
- for (int i = 0; i < _points.size(); i++) {
- if ( markContains( graphicalizePoint( _points[i], "mousePressEvent RightButton" ), e->pos() ) ) {
- movingPoint = i;
- }
- }
-
- //
- // If the Right Mouse-button was clicked while touching a Point, remove the Point
- //
- if (movingPoint >= 0) {
- _config->removePoint(movingPoint);
- setConfig(_config, strSettingsFile);
- movingPoint = -1;
- emit CurveChanged( true );
- }
- }
- ReleaseMutex(_mutex);
- }
-
-}
-
-//
-// If the mouse if moving, make sure the Bezier moves along.
-// Of course, only when a Point is selected...
-//
-void QFunctionConfigurator::mouseMoveEvent(QMouseEvent *e)
-{
-
- if (moving) {
-
- setCursor(Qt::ClosedHandCursor);
-
- //
- // Change the currently moving Point.
- //
- *moving = normalizePoint(e->pos());
- update();
- }
- else {
-
- //
- // Check to see if the cursor is touching one of the points.
- //
- bool bTouchingPoint = false;
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
-
- for (int i = 0; i < _points.size(); i++) {
- if ( markContains( graphicalizePoint( _points[i], "mouseMoveEvent" ), e->pos() ) ) {
- bTouchingPoint = true;
- }
- }
- }
- ReleaseMutex(_mutex);
-
- if ( bTouchingPoint ) {
- setCursor(Qt::OpenHandCursor);
- }
- else {
- setCursor(Qt::ArrowCursor);
- }
-
- }
-}
-
-void QFunctionConfigurator::mouseReleaseEvent(QMouseEvent *e)
-{
- //qDebug()<<"releasing";
- if (moving > 0) {
- emit CurveChanged( true );
-
- //
- // Update the Point in the _config
- //
- WaitForSingleObject(_mutex, INFINITE);
- if (_config) {
- _config->movePoint(movingPoint, normalizePoint(e->pos()));
- setConfig(_config, strSettingsFile);
- }
- ReleaseMutex(_mutex);
-
- }
- setCursor(Qt::ArrowCursor);
- moving = NULL;
- movingPoint = 0;
-}
-
-//
-// Determine if the mousebutton was pressed within the range of the Point.
-//
-bool QFunctionConfigurator::markContains(const QPointF &pos, const QPointF &coord) const
-{
- QRectF rect(pos.x() - pointSize,
- pos.y() - pointSize,
- pointSize*2, pointSize*2);
- QPainterPath path;
- path.addEllipse(rect);
- return path.contains(coord);
-}
-
-bool QFunctionConfigurator::withinRect( const QPointF &coord, const QRectF &rect ) const
-{
- QPainterPath path;
- path.addRect(rect);
- return path.contains(coord);
-}
-
-//
-// Convert the Point in the graph, to the real-life Point.
-//
-QPointF QFunctionConfigurator::normalizePoint(QPointF point) const
-{
- QPointF norm;
-
- norm.setX( (point.x() - range.left()) / pPerEGU_Input );
- norm.setY( (range.bottom() - point.y()) / pPerEGU_Output );
-
- if (norm.x() > maxInputEGU())
- norm.setX(maxInputEGU());
- else if (norm.x() < 0)
- norm.setX(0);
- if (norm.y() > maxOutputEGU())
- norm.setY(maxOutputEGU());
- else if (norm.y() < 0)
- norm.setY(0);
-
- return norm;
-}
-
-//
-// Convert the real-life Point into the graphical Point.
-//
-QPointF QFunctionConfigurator::graphicalizePoint(QPointF point, QString source) const
-{
-QPointF graph;
-
- graph.setX( range.left() + (fabs(point.x()) * pPerEGU_Input) );
- graph.setY( range.bottom() - (fabs(point.y()) * pPerEGU_Output) );
-
-// qDebug() << "QFunctionConfigurator::graphicalizePoint source = " << source << ", point = " << point << ", graph = " << graph;
-
- return graph;
-}
-
-void QFunctionConfigurator::setmaxInputEGU(int value)
-{
- MaxInput = value;
- setMinimumWidth(MaxInput * pPerEGU_Input + 55);
-// resetCurve();
- resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
-}
-void QFunctionConfigurator::setmaxOutputEGU(int value)
-{
- MaxOutput = value;
- setMinimumHeight(MaxOutput * pPerEGU_Output + 60);
-// resetCurve();
- resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
-}
-
-//
-// To make configuration more visibly attractive, the number of pixels 'per EGU' can be defined.
-//
-void QFunctionConfigurator::setpixPerEGU_Input(int value)
-{
- pPerEGU_Input = value;
- setMinimumWidth(MaxInput * pPerEGU_Input + 55);
- resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
-}
-
-//
-// To make configuration more visibly attractive, the number of pixels 'per EGU' can be defined.
-//
-void QFunctionConfigurator::setpixPerEGU_Output(int value)
-{
- pPerEGU_Output = value;
- setMinimumHeight(MaxOutput * pPerEGU_Output + 60);
- resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
-}
-
-//
-// Define the distance of the grid 'in EGU' points.
-//
-void QFunctionConfigurator::setgridDistEGU_Input(int value)
-{
- gDistEGU_Input = value;
- _draw_background = true;
- _draw_function = true;
- repaint();
-}
-
-//
-// Define the distance of the grid 'in EGU' points.
-//
-void QFunctionConfigurator::setgridDistEGU_Output(int value)
-{
- gDistEGU_Output = value;
- _draw_background = true;
- _draw_function = true;
- repaint();
-}
-
-void QFunctionConfigurator::setColorBezier(QColor color)
-{
- colBezier = color;
- update();
-}
-void QFunctionConfigurator::setColorBackground(QColor color)
-{
- colBackground = color;
- update();
-}
-
-void QFunctionConfigurator::setInputEGU(QString egu)
-{
- strInputEGU = egu;
- update();
-}
-void QFunctionConfigurator::setOutputEGU(QString egu)
-{
- strOutputEGU = egu;
- update();
-}
-void QFunctionConfigurator::setCaption(QString cap)
-{
- strCaption = cap;
- update();
-}
-
-void QFunctionConfigurator::resizeEvent(QResizeEvent *e)
-{
- QSize s = e->size();
- range = QRectF(40, 20, MaxInput * pPerEGU_Input, MaxOutput * pPerEGU_Output);
-
- qDebug() << "QFunctionConfigurator::resizeEvent, name = " << strCaption << ",range = " << range;
-
- if (_config) {
- setConfig(_config, strSettingsFile);
- }
- _draw_background = true;
- _draw_function = true;
- repaint();
-}
+/********************************************************************************
+* FaceTrackNoIR This program is a private project of some enthusiastic *
+* gamers from Holland, who don't like to pay much for *
+* head-tracking. *
+* *
+* Copyright (C) 2012 Wim Vriend (Developing) *
+* Ron Hendriks (Researching and Testing) *
+* *
+* Homepage http://facetracknoir.sourceforge.net/home/default.htm *
+* *
+* This program is free software; you can redistribute it and/or modify it *
+* under the terms of the GNU General Public License as published by the *
+* Free Software Foundation; either version 3 of the License, or (at your *
+* option) any later version. *
+* *
+* This program is distributed in the hope that it will be useful, but *
+* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
+* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
+* more details. *
+* *
+* You should have received a copy of the GNU General Public License along *
+* with this program; if not, see <http://www.gnu.org/licenses/>. *
+* *
+* The FunctionConfigurator was made by Stanislaw Halik, and adapted to *
+* FaceTrackNoIR. *
+* *
+* All credits for this nice piece of code should go to Stanislaw. *
+* *
+* Copyright (c) 2011-2012, Stanislaw Halik <sthalik@misaki.pl> *
+* Permission to use, copy, modify, and/or distribute this *
+* software for any purpose with or without fee is hereby granted, *
+* provided that the above copyright notice and this permission *
+* notice appear in all copies. *
+********************************************************************************/
+/*
+ Modifications (last one on top):
+ 20120830 - WVR: Changed functionality a bit. Now only draw the handles, when the function is drawn.
+ Only check mouseMoves, when they occur 'in range'. Redraw the curve, when a resize occurs.
+ Somehow, the curve was not drawn correctly, when this was not done (all points were too high).
+ After a 'Reset' this would disappear...
+ 20120828 - WVR: Removed bSkipText, which was used to not show a number below each vertical gridline.
+*/
+#include "qfunctionconfigurator/qfunctionconfigurator.h"
+#include <QPainter>
+#include <QPaintEvent>
+#include <QPainterPathStroker>
+#include <QPainterPath>
+#include <QBrush>
+#include <QFileDialog>
+#include <QPen>
+#include <QMessageBox>
+#include <QImage>
+#include <QPixmap>
+#include <QTimer>
+
+#include <QtDebug>
+
+#include <math.h>
+
+QFunctionConfigurator::~QFunctionConfigurator()
+{
+ delete btnReset;
+}
+
+static const int pointSize = 5;
+
+QFunctionConfigurator::QFunctionConfigurator(QWidget *parent)
+ : QWidget(parent)
+{
+
+ //
+ // Defaults, for when the widget has no values different from the domXML()
+ //
+ MaxInput = 50; // Maximum input limit
+ MaxOutput = 180; // Maximum output limit
+ pPerEGU_Output = 1; // Number of pixels, per EGU
+ pPerEGU_Input = 4; // Number of pixels, per EGU
+ gDistEGU_Input = 5; // Distance of gridlines
+ gDistEGU_Output = 10; // Distance of gridlines
+
+
+ // Change compared to BezierConfigurator: X = horizontal (input), Y = vertical (output)
+ // This will require the Curve-Dialog to be higher (which was the reason it was reversed in the first place..)
+ range = QRectF(40, 20, MaxInput * pPerEGU_Input, MaxOutput * pPerEGU_Output);
+
+ setMouseTracking(true);
+ moving = NULL; // Pointer to the curve-point, that's being moved
+ movingPoint = 1; // Index of that same point
+
+ //
+ // Add a Reset-button
+ //
+ btnReset = new QPushButton(QString("Reset"), this);
+ connect(btnReset, SIGNAL(clicked()), this, SLOT(resetCurve()));
+
+ //
+ // Variables for FunctionConfig
+ //
+ _config = 0;
+ _points = QList<QPointF>();
+ _draw_points = QList<QPointF>();
+ _draw_background = true;
+ _draw_function = true;
+
+// qDebug() << "QFunctionConfigurator::QFunctionConfigurator object created.";
+
+}
+
+//
+// Attach an existing FunctionConfig to the Widget.
+//
+void QFunctionConfigurator::setConfig(FunctionConfig* config, QString settingsFile) {
+QPointF currentPoint;
+QPointF drawPoint;
+qreal x;
+
+ _config = config;
+ _points = config->getPoints();
+ strSettingsFile = settingsFile; // Remember for Reset()
+
+ qDebug() << "QFunctionConfigurator::setConfig" << config->getTitle();
+ setCaption(config->getTitle());
+
+ //
+ // Get the Function Points, one for each pixel in the horizontal range.
+ // If the curve does not change, there is no need to run this code every time (it slows down drawing).
+ //
+ _draw_points.clear();
+ for (int j = 0; j < MaxInput * pPerEGU_Input; j++) {
+ //
+ // Weird: not casting to float causes C++ to round the number...
+ //
+ x = (float) j / (float) pPerEGU_Input;
+ currentPoint.setX ( x );
+ currentPoint.setY (_config->getValue( x ));
+ drawPoint = graphicalizePoint(currentPoint, "setConfig");
+ if (withinRect(drawPoint, range)) {
+ _draw_points.append(drawPoint);
+// qDebug() << "QFunctionConfigurator::setConfig _draw_Point to add = " << drawPoint;
+ }
+ }
+
+ _draw_function = true;
+ this->update();
+}
+
+//
+// Load the FunctionConfig (points) from the INI-file.
+//
+void QFunctionConfigurator::loadSettings(QString settingsFile) {
+
+ QSettings iniFile( settingsFile, QSettings::IniFormat ); // Application settings (in INI-file)
+ strSettingsFile = settingsFile; // Remember for Reset()
+ qDebug() << "QFunctionConfigurator::loadSettings = " << settingsFile;
+ if (_config) {
+ _config->loadSettings(iniFile);
+ setConfig(_config, settingsFile);
+ }
+}
+
+//
+// Save the FunctionConfig (points) to the INI-file.
+//
+void QFunctionConfigurator::saveSettings(QString settingsFile) {
+ QSettings iniFile( settingsFile, QSettings::IniFormat ); // Application settings (in INI-file)
+ strSettingsFile = settingsFile; // Remember for Reset()
+ qDebug() << "QFunctionConfigurator::saveSettings = " << settingsFile;
+
+ if (_config) {
+ _config->saveSettings(iniFile);
+ }
+}
+
+//
+// Draw the Background for the graph, the gridlines and the gridpoints.
+// The static objects are drawn on a Pixmap, so it does not have to be repeated every paintEvent. Hope this speeds things up...
+//
+void QFunctionConfigurator::drawBackground(const QRectF &fullRect)
+{
+int i;
+QRect scale;
+
+ qDebug() << "QFunctionConfigurator::drawBackground.";
+
+ _background = QPixmap(fullRect.width(), fullRect.height());
+ QPainter painter(&_background);
+
+ painter.save();
+ painter.setRenderHint(QPainter::Antialiasing);
+ painter.fillRect(fullRect, colBackground);
+ QColor bg_color(112, 154, 209);
+ painter.fillRect(range, bg_color);
+
+ QFont font("ComicSans", 4);
+ font.setPointSize(8);
+ painter.setFont(font);
+
+ QPen pen(QColor(55, 104, 170, 127), 1, Qt::SolidLine);
+
+ //
+ // Draw the Caption
+ //
+ if (_config) {
+ strCaption = _config->getTitle();
+ }
+
+ scale.setCoords(range.left(), 0, range.right(), 20);
+ painter.drawText(scale, Qt::AlignCenter, strCaption);
+
+ //
+ // Draw the horizontal grid
+ //
+ for (i = range.bottom() - gDistEGU_Output * pPerEGU_Output; i >= range.top(); i -= gDistEGU_Output * pPerEGU_Output) {
+ drawLine(&painter, QPointF(40, i), QPointF(range.right(), i), pen);
+ scale.setCoords(0, i - 5, range.left() - 5, i + 5);
+ painter.drawText(scale, Qt::AlignRight, tr("%1").arg(((range.bottom() - i))/pPerEGU_Output));
+ }
+
+ //
+ // Draw the vertical guidelines
+ //
+ for (i = range.left(); i <= range.right(); i += gDistEGU_Input * pPerEGU_Input) {
+ drawLine(&painter, QPointF(i, range.top()), QPointF(i, range.bottom()), pen);
+ scale.setCoords(i - 10, range.bottom() + 2, i + 10, range.bottom() + 15);
+ painter.drawText(scale, Qt::AlignCenter, tr("%1").arg(abs(((range.left() - i))/pPerEGU_Input)));
+ }
+
+ scale.setCoords(range.left(), range.bottom() + 20, range.right(), range.bottom() + 35);
+ painter.drawText(scale, Qt::AlignRight, strInputEGU);
+
+ //
+ // Draw the EGU of the vertical axis (vertically!)
+ //
+ font.setPointSize(10);
+ painter.translate(range.topLeft().x() - 35, range.topLeft().y());
+ painter.rotate(90);
+ painter.drawText(0,0,strOutputEGU );
+
+ //
+ // Draw the two axis
+ //
+ pen.setWidth(2);
+ pen.setColor( Qt::black );
+ drawLine(&painter, range.topLeft() - QPointF(2,0), range.bottomLeft() - QPointF(2,0), pen);
+ drawLine(&painter, range.bottomLeft(), range.bottomRight(), pen);
+
+ painter.restore();
+}
+
+
+//
+// Draw the Function for the graph, on a Pixmap.
+//
+void QFunctionConfigurator::drawFunction(const QRectF &fullRect)
+{
+ if (!_config)
+ return;
+int i;
+QPointF prevPoint;
+QPointF currentPoint;
+
+ //
+ // Use the background picture to draw on.
+ // ToDo: find out how to add Pixmaps, without getting it all green...
+ //
+ _function = QPixmap(_background);
+ QPainter painter(&_function);
+
+ painter.save();
+ painter.setRenderHint(QPainter::Antialiasing, true);
+
+ //
+ // Draw the handles for the Points
+ //
+ for (i = 0; i < _points.size(); i++) {
+ currentPoint = graphicalizePoint( _points[i], "drawFunction handles" ); // Get the next point and convert it to Widget measures
+ drawPoint(&painter, currentPoint, QColor(200, 200, 210, 120));
+ lastPoint = currentPoint; // Remember which point is the rightmost in the graph
+//qDebug() << "QFunctionConfigurator::paintEvent, drawing handle for " << currentPoint;
+ }
+
+
+ QPen pen(colBezier, 1.5, Qt::SolidLine);
+
+ prevPoint = graphicalizePoint( QPointF(0,0), "drawFunction lines" ); // Start at the Axis
+ double max = maxInputEGU();
+ QPointF prev = graphicalizePoint(QPointF(0, 0));
+ double step = 1 / (double) pixPerEGU_Input();
+ for (double i = 0; i < max; i += step) {
+ double val = _config->getValue(i);
+ QPointF cur = graphicalizePoint(QPointF(i, val));
+ drawLine(&painter, prev, cur, pen);
+ prev = cur;
+ }
+ painter.restore();
+}
+
+//
+// The Widget paints the surface every x msecs.
+//
+void QFunctionConfigurator::paintEvent(QPaintEvent *e)
+{
+QPointF prevPoint;
+QPointF currentPoint;
+QPointF actualPos;
+int i;
+
+// qDebug() << "QFunctionConfigurator::paintEvent.";
+
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+ p.setClipRect(e->rect());
+
+ if (_draw_background) {
+ drawBackground(e->rect()); // Draw the static parts on a Pixmap
+ p.drawPixmap(0, 0, _background); // Paint the background
+ _draw_background = false;
+
+ btnReset->move(e->rect().left(), e->rect().bottom() - btnReset->height() - 2);
+ }
+
+ if (_draw_function) {
+ drawFunction(e->rect()); // Draw the Function on a Pixmap
+ _draw_function = false;
+ }
+ p.drawPixmap(0, 0, _function); // Always draw the background and the function
+
+ QPen pen(Qt::white, 1, Qt::SolidLine);
+
+ //
+ // Draw the Points, that make up the Curve
+ //
+ if (_config) {
+
+ //
+ // When moving, also draw a sketched version of the Function.
+ //
+ if (moving) {
+ prevPoint = graphicalizePoint( QPointF(0,0), "paintEvent moving" ); // Start at the Axis
+ for (i = 0; i < _points.size(); i++) {
+ currentPoint = graphicalizePoint( _points[i], "paintEvent moving" ); // Get the next point and convert it to Widget measures
+ drawLine(&p, prevPoint, currentPoint, pen);
+ prevPoint = currentPoint;
+// qDebug() << "QFunctionConfigurator::paintEvent, drawing while moving " << currentPoint;
+ }
+
+ //
+ // When moving, also draw a few help-lines, so positioning the point gets easier.
+ //
+ pen.setWidth(1);
+ pen.setColor( Qt::white );
+ pen.setStyle( Qt::DashLine );
+ actualPos = graphicalizePoint(*moving, "paintEvent moving help line(s)");
+ drawLine(&p, QPoint(range.left(), actualPos.y()), QPoint(actualPos.x(), actualPos.y()), pen);
+ drawLine(&p, QPoint(actualPos.x(), actualPos.y()), QPoint(actualPos.x(), range.bottom()), pen);
+ }
+
+ //
+ // If the Tracker is active, the 'Last Point' it requested is recorded.
+ // Show that point on the graph, with some lines to assist.
+ // This new feature is very handy for tweaking the curves!
+ //
+ if (_config->getLastPoint( currentPoint )) {
+
+// qDebug() << "QFunctionConfigurator::paintEvent, drawing tracked Point " << currentPoint;
+
+ actualPos = graphicalizePoint( currentPoint, "paintEvent tracking" );
+ drawPoint(&p, actualPos, QColor(255, 0, 0, 120));
+
+ pen.setWidth(1);
+ pen.setColor( Qt::black );
+ pen.setStyle( Qt::SolidLine );
+ drawLine(&p, QPoint(range.left(), actualPos.y()), QPoint(actualPos.x(), actualPos.y()), pen);
+ drawLine(&p, QPoint(actualPos.x(), actualPos.y()), QPoint(actualPos.x(), range.bottom()), pen);
+ }
+
+ }
+
+ //
+ // Draw the delimiters
+ //
+ pen.setWidth(1);
+ pen.setColor( Qt::white );
+ pen.setStyle( Qt::SolidLine );
+ drawLine(&p, QPoint(lastPoint.x(), range.top()), QPoint(lastPoint.x(), range.bottom()), pen);
+ drawLine(&p, QPoint(range.left(), lastPoint.y()), QPoint(range.right(), lastPoint.y()), pen);
+
+ QTimer::singleShot(50, this, SLOT(update()));
+}
+
+//
+// Draw the handle, to move the Bezier-curve.
+//
+void QFunctionConfigurator::drawPoint(QPainter *painter, const QPointF &pos, QColor colBG )
+{
+ painter->save();
+ painter->setPen(QColor(50, 100, 120, 200));
+ painter->setBrush( colBG );
+ painter->drawEllipse(QRectF(pos.x() - pointSize,
+ pos.y() - pointSize,
+ pointSize*2, pointSize*2));
+ painter->restore();
+}
+
+void QFunctionConfigurator::drawLine(QPainter *painter, const QPointF &start, const QPointF &end, QPen pen)
+{
+ painter->save();
+ painter->setPen(pen);
+ painter->setBrush(Qt::NoBrush);
+ painter->drawLine(start, end);
+ painter->restore();
+}
+
+//
+// If the mousebutton is pressed, check if it is inside one of the Points.
+// If so: start moving that Point, until mouse release.
+//
+void QFunctionConfigurator::mousePressEvent(QMouseEvent *e)
+{
+ //
+ // First: check the left mouse-button
+ //
+ if (e->button() == Qt::LeftButton) {
+
+ //
+ // Check to see if the cursor is touching one of the points.
+ //
+ bool bTouchingPoint = false;
+ movingPoint = -1;
+ if (_config) {
+
+ for (int i = 0; i < _points.size(); i++) {
+ if ( markContains( graphicalizePoint( _points[i], "mousePressEvent markContains" ), e->pos() ) ) {
+ bTouchingPoint = true;
+ moving = &_points[i];
+ movingPoint = i;
+ }
+ }
+
+ //
+ // If the Left Mouse-button was clicked without touching a Point, add a new Point
+ //
+ if (!bTouchingPoint) {
+ if (withinRect(e->pos(), range)) {
+ _config->addPoint(normalizePoint(e->pos()));
+ setConfig(_config, strSettingsFile);
+ moving = NULL;
+ emit CurveChanged( true );
+ }
+ }
+ }
+ }
+
+ //
+ // Then: check the right mouse-button
+ //
+ if (e->button() == Qt::RightButton) {
+
+ //
+ // Check to see if the cursor is touching one of the points.
+ //
+ moving = NULL;
+ movingPoint = -1;
+ if (_config) {
+
+ for (int i = 0; i < _points.size(); i++) {
+ if ( markContains( graphicalizePoint( _points[i], "mousePressEvent RightButton" ), e->pos() ) ) {
+ movingPoint = i;
+ }
+ }
+
+ //
+ // If the Right Mouse-button was clicked while touching a Point, remove the Point
+ //
+ if (movingPoint >= 0) {
+ _config->removePoint(movingPoint);
+ setConfig(_config, strSettingsFile);
+ movingPoint = -1;
+ emit CurveChanged( true );
+ }
+ }
+ }
+
+}
+
+//
+// If the mouse if moving, make sure the Bezier moves along.
+// Of course, only when a Point is selected...
+//
+void QFunctionConfigurator::mouseMoveEvent(QMouseEvent *e)
+{
+
+ if (moving) {
+
+ setCursor(Qt::ClosedHandCursor);
+
+ //
+ // Change the currently moving Point.
+ //
+ *moving = normalizePoint(e->pos());
+ update();
+ }
+ else {
+
+ //
+ // Check to see if the cursor is touching one of the points.
+ //
+ bool bTouchingPoint = false;
+ if (_config) {
+
+ for (int i = 0; i < _points.size(); i++) {
+ if ( markContains( graphicalizePoint( _points[i], "mouseMoveEvent" ), e->pos() ) ) {
+ bTouchingPoint = true;
+ }
+ }
+ }
+
+ if ( bTouchingPoint ) {
+ setCursor(Qt::OpenHandCursor);
+ }
+ else {
+ setCursor(Qt::ArrowCursor);
+ }
+
+ }
+}
+
+void QFunctionConfigurator::mouseReleaseEvent(QMouseEvent *e)
+{
+ //qDebug()<<"releasing";
+ if (moving > 0) {
+ emit CurveChanged( true );
+
+ //
+ // Update the Point in the _config
+ //
+ if (_config) {
+ _config->movePoint(movingPoint, normalizePoint(e->pos()));
+ setConfig(_config, strSettingsFile);
+ }
+ }
+ setCursor(Qt::ArrowCursor);
+ moving = NULL;
+ movingPoint = 0;
+}
+
+//
+// Determine if the mousebutton was pressed within the range of the Point.
+//
+bool QFunctionConfigurator::markContains(const QPointF &pos, const QPointF &coord) const
+{
+ QRectF rect(pos.x() - pointSize,
+ pos.y() - pointSize,
+ pointSize*2, pointSize*2);
+ QPainterPath path;
+ path.addEllipse(rect);
+ return path.contains(coord);
+}
+
+bool QFunctionConfigurator::withinRect( const QPointF &coord, const QRectF &rect ) const
+{
+ QPainterPath path;
+ path.addRect(rect);
+ return path.contains(coord);
+}
+
+//
+// Convert the Point in the graph, to the real-life Point.
+//
+QPointF QFunctionConfigurator::normalizePoint(QPointF point) const
+{
+ QPointF norm;
+
+ norm.setX( (point.x() - range.left()) / pPerEGU_Input );
+ norm.setY( (range.bottom() - point.y()) / pPerEGU_Output );
+
+ if (norm.x() > maxInputEGU())
+ norm.setX(maxInputEGU());
+ else if (norm.x() < 0)
+ norm.setX(0);
+ if (norm.y() > maxOutputEGU())
+ norm.setY(maxOutputEGU());
+ else if (norm.y() < 0)
+ norm.setY(0);
+
+ return norm;
+}
+
+//
+// Convert the real-life Point into the graphical Point.
+//
+QPointF QFunctionConfigurator::graphicalizePoint(QPointF point, QString source) const
+{
+QPointF graph;
+
+ graph.setX( range.left() + (fabs(point.x()) * pPerEGU_Input) );
+ graph.setY( range.bottom() - (fabs(point.y()) * pPerEGU_Output) );
+
+// qDebug() << "QFunctionConfigurator::graphicalizePoint source = " << source << ", point = " << point << ", graph = " << graph;
+
+ return graph;
+}
+
+void QFunctionConfigurator::setmaxInputEGU(int value)
+{
+ MaxInput = value;
+ setMinimumWidth(MaxInput * pPerEGU_Input + 55);
+// resetCurve();
+ resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
+}
+void QFunctionConfigurator::setmaxOutputEGU(int value)
+{
+ MaxOutput = value;
+ setMinimumHeight(MaxOutput * pPerEGU_Output + 60);
+// resetCurve();
+ resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
+}
+
+//
+// To make configuration more visibly attractive, the number of pixels 'per EGU' can be defined.
+//
+void QFunctionConfigurator::setpixPerEGU_Input(int value)
+{
+ pPerEGU_Input = value;
+ setMinimumWidth(MaxInput * pPerEGU_Input + 55);
+ resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
+}
+
+//
+// To make configuration more visibly attractive, the number of pixels 'per EGU' can be defined.
+//
+void QFunctionConfigurator::setpixPerEGU_Output(int value)
+{
+ pPerEGU_Output = value;
+ setMinimumHeight(MaxOutput * pPerEGU_Output + 60);
+ resize( MaxInput * pPerEGU_Input + 55, MaxOutput * pPerEGU_Output + 60 );
+}
+
+//
+// Define the distance of the grid 'in EGU' points.
+//
+void QFunctionConfigurator::setgridDistEGU_Input(int value)
+{
+ gDistEGU_Input = value;
+ _draw_background = true;
+ _draw_function = true;
+ repaint();
+}
+
+//
+// Define the distance of the grid 'in EGU' points.
+//
+void QFunctionConfigurator::setgridDistEGU_Output(int value)
+{
+ gDistEGU_Output = value;
+ _draw_background = true;
+ _draw_function = true;
+ repaint();
+}
+
+void QFunctionConfigurator::setColorBezier(QColor color)
+{
+ colBezier = color;
+ update();
+}
+void QFunctionConfigurator::setColorBackground(QColor color)
+{
+ colBackground = color;
+ update();
+}
+
+void QFunctionConfigurator::setInputEGU(QString egu)
+{
+ strInputEGU = egu;
+ update();
+}
+void QFunctionConfigurator::setOutputEGU(QString egu)
+{
+ strOutputEGU = egu;
+ update();
+}
+void QFunctionConfigurator::setCaption(QString cap)
+{
+ strCaption = cap;
+ update();
+}
+
+void QFunctionConfigurator::resizeEvent(QResizeEvent *e)
+{
+ range = QRectF(40, 20, MaxInput * pPerEGU_Input, MaxOutput * pPerEGU_Output);
+
+ qDebug() << "QFunctionConfigurator::resizeEvent, name = " << strCaption << ",range = " << range;
+
+ if (_config) {
+ setConfig(_config, strSettingsFile);
+ }
+ _draw_background = true;
+ _draw_function = true;
+ repaint();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 09:53:33 +0000