Mercurial > hg > easaier-soundaccess

comparison widgets/Plotter.cpp @ 235:7ab3e81f52d4

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enable/disable alternatively draw curve and simple mode in the equalizer filter
author lbajardsilogic
date Fri, 07 Mar 2008 15:01:27 +0000
parents 628531da16ef
children 858a1121ebf7
comparison
equal deleted inserted replaced
234:cff926c60430 235:7ab3e81f52d4
17 17
18 Plotter::Plotter(QWidget *parent): 18 Plotter::Plotter(QWidget *parent):
19 m_signalWidth(400), 19 m_signalWidth(400),
20 m_signalHeight(120), 20 m_signalHeight(120),
21 m_margin(5), 21 m_margin(5),
22 m_curveMaskActive(false) 22 m_curveMaskActive(false),
23 m_enableDrawCurve(false)
23 { 24 {
24 //m_curveMask = new int[m_signalWidth]; 25 //m_curveMask = new int[m_signalWidth];
25 for(int i = 0 ; i < m_signalWidth ; i++){ 26 for(int i = 0 ; i < m_signalWidth ; i++){
26 m_curveMask.push_back(0); 27 m_curveMask.push_back(0);
27 } 28 }
64 65
65 void Plotter::mousePressEvent(QMouseEvent *event){ 66 void Plotter::mousePressEvent(QMouseEvent *event){
66 QRect rect(m_margin, m_margin, 67 QRect rect(m_margin, m_margin,
67 m_signalWidth + m_margin, m_signalHeight + m_margin); 68 m_signalWidth + m_margin, m_signalHeight + m_margin);
68 69
69 if (event->button() == Qt::LeftButton) { 70 if (m_enableDrawCurve)
70 if (rect.contains(event->pos())) { 71 {
71 m_curveMaskActive = true; 72 if (event->button() == Qt::LeftButton) {
72 int x = event->pos().x()- m_margin; 73 if (rect.contains(event->pos())) {
73 int y = event->pos().y()- m_margin; 74 m_curveMaskActive = true;
75 int x = event->pos().x()- m_margin;
76 int y = event->pos().y()- m_margin;
77 m_curveMask[x] = y;
78 m_lastPoint.setX(x);
79 m_lastPoint.setY(y);
80 setCursor(Qt::CrossCursor);
81 refreshPixmap();
82 }
83 }
84 }
85 }
86
87 void Plotter::mouseMoveEvent(QMouseEvent *event){
88 QRect rect(m_margin, m_margin,
89 m_signalWidth + m_margin , m_signalHeight + m_margin);
90
91 if (m_enableDrawCurve)
92 {
93 if(m_curveMaskActive && rect.contains(event->pos())){
94 int x = event->pos().x() - m_margin;
95 int y = event->pos().y() - m_margin;
96 if(y>m_signalHeight-1)
97 y= m_signalHeight-1;
98 if(x>m_signalWidth-1)
99 y= m_signalWidth-1;
100 int xlast = m_lastPoint.x();
101 int ylast = m_lastPoint.y();
102
103 //regul mask curve
104 int minx, maxx, miny, maxy;
105 if(x>xlast){
106 minx = xlast;
107 maxx = x;
108 }else{
109 minx = x;
110 maxx = xlast;
111 }
112 if(y>ylast){
113 miny = ylast;
114 maxy = y;
115 }else{
116 miny = y;
117 maxy = ylast;
118 }
119
120 if((maxx - minx)>1){
121 double incr = (double)(maxy - miny)/(double)(maxx - minx);
122 if(x>xlast){
123 for (int i = xlast + 1 ; i < x ; i++){
124 if(ylast > y){
125 m_curveMask[i] = ylast - (i-xlast)*incr;
126 }else{
127 m_curveMask[i] = ylast + (i-xlast)*incr;
128 }
129 }
130 }else{
131 for (int i = xlast - 1 ; i > x ; i--){
132 if(ylast > y){
133 m_curveMask[i] = ylast + (i-xlast)*incr;
134 }else{
135 m_curveMask[i] = ylast - (i-xlast)*incr;
136 }
137 }
138 }
139 }
74 m_curveMask[x] = y; 140 m_curveMask[x] = y;
75 m_lastPoint.setX(x); 141 m_lastPoint.setX(x);
76 m_lastPoint.setY(y); 142 m_lastPoint.setY(y);
77 setCursor(Qt::CrossCursor);
78 refreshPixmap(); 143 refreshPixmap();
79 }
80 }
81 }
82
83 void Plotter::mouseMoveEvent(QMouseEvent *event){
84 QRect rect(m_margin, m_margin,
85 m_signalWidth + m_margin , m_signalHeight + m_margin);
86
87 if(m_curveMaskActive && rect.contains(event->pos())){
88 int x = event->pos().x() - m_margin;
89 int y = event->pos().y() - m_margin;
90 if(y>m_signalHeight-1)
91 y= m_signalHeight-1;
92 if(x>m_signalWidth-1)
93 y= m_signalWidth-1;
94 int xlast = m_lastPoint.x();
95 int ylast = m_lastPoint.y();
96
97 //regul mask curve
98 int minx, maxx, miny, maxy;
99 if(x>xlast){
100 minx = xlast;
101 maxx = x;
102 }else{
103 minx = x;
104 maxx = xlast;
105 } 144 }
106 if(y>ylast){ 145 }
107 miny = ylast; 146 }
108 maxy = y; 147
109 }else{ 148 void Plotter::mouseReleaseEvent(QMouseEvent *event){
110 miny = y; 149 if (m_enableDrawCurve)
111 maxy = ylast; 150 {
151 if ((event->button() == Qt::LeftButton) && m_curveMaskActive) {
152 m_curveMaskActive = false;
153 unsetCursor();
154 emit filterChanged(m_curveMask);
112 } 155 }
113 156 }
114 if((maxx - minx)>1){
115 double incr = (double)(maxy - miny)/(double)(maxx - minx);
116 if(x>xlast){
117 for (int i = xlast + 1 ; i < x ; i++){
118 if(ylast > y){
119 m_curveMask[i] = ylast - (i-xlast)*incr;
120 }else{
121 m_curveMask[i] = ylast + (i-xlast)*incr;
122 }
123 }
124 }else{
125 for (int i = xlast - 1 ; i > x ; i--){
126 if(ylast > y){
127 m_curveMask[i] = ylast + (i-xlast)*incr;
128 }else{
129 m_curveMask[i] = ylast - (i-xlast)*incr;
130 }
131 }
132 }
133 }
134 m_curveMask[x] = y;
135 m_lastPoint.setX(x);
136 m_lastPoint.setY(y);
137 refreshPixmap();
138 }
139 }
140
141 void Plotter::mouseReleaseEvent(QMouseEvent *event){
142 if ((event->button() == Qt::LeftButton) && m_curveMaskActive) {
143 m_curveMaskActive = false;
144 unsetCursor();
145 emit filterChanged(m_curveMask);
146 }
147 } 157 }
148 158
149 void Plotter::drawGrid(QPainter *painter){ 159 void Plotter::drawGrid(QPainter *painter){
150 QPixmap pm(":icons/grid.png"); 160 QPixmap pm(":icons/grid.png");
151 painter->drawPixmap(0,0,pm); 161 painter->drawPixmap(0,0,pm);
203 { 213 {
204 m_curveMask.push_back((int) (m_signalHeight - filter[i]*(m_signalHeight/2-1))); 214 m_curveMask.push_back((int) (m_signalHeight - filter[i]*(m_signalHeight/2-1)));
205 } 215 }
206 refreshPixmap(); 216 refreshPixmap();
207 } 217 }
218
219 void Plotter::enableDrawCurve(bool enable)
220 {
221 m_enableDrawCurve = enable;
222 }