6658905f |
1 | #include <iostream> |
2 | #include <QPainterPath> |
3 | #include <QBrush> |
4 | #include <QPen> |
5 | #include <QTimer> |
6 | #include <QCloseEvent> |
7 | #include <QMouseEvent> |
8 | #include <QKeyEvent> |
9 | #include <math.h> |
10 | #include <limits.h> |
11 | #include "proxguiqt.h" |
12 | #include "proxgui.h" |
13 | |
14 | void ProxGuiQT::ShowGraphWindow(void) |
15 | { |
16 | emit ShowGraphWindowSignal(); |
17 | } |
18 | |
19 | void ProxGuiQT::RepaintGraphWindow(void) |
20 | { |
21 | emit RepaintGraphWindowSignal(); |
22 | } |
23 | |
24 | void ProxGuiQT::HideGraphWindow(void) |
25 | { |
26 | emit HideGraphWindowSignal(); |
27 | } |
28 | |
29 | void ProxGuiQT::_ShowGraphWindow(void) |
30 | { |
31 | if(!plotapp) |
32 | return; |
33 | |
34 | if (!plotwidget) |
35 | plotwidget = new ProxWidget(); |
36 | |
37 | plotwidget->show(); |
38 | } |
39 | |
40 | void ProxGuiQT::_RepaintGraphWindow(void) |
41 | { |
42 | if (!plotapp || !plotwidget) |
43 | return; |
44 | |
45 | plotwidget->update(); |
46 | } |
47 | |
48 | void ProxGuiQT::_HideGraphWindow(void) |
49 | { |
50 | if (!plotapp || !plotwidget) |
51 | return; |
52 | |
53 | plotwidget->hide(); |
54 | } |
55 | |
56 | void ProxGuiQT::MainLoop() |
57 | { |
58 | plotapp = new QApplication(argc, argv); |
59 | |
60 | connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow())); |
61 | connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow())); |
62 | connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow())); |
63 | |
64 | plotapp->exec(); |
65 | } |
66 | |
67 | ProxGuiQT::ProxGuiQT(int argc, char **argv) : plotapp(NULL), plotwidget(NULL), |
68 | argc(argc), argv(argv) |
69 | { |
70 | } |
71 | |
72 | ProxGuiQT::~ProxGuiQT(void) |
73 | { |
74 | if (plotwidget) { |
75 | delete plotwidget; |
76 | plotwidget = NULL; |
77 | } |
78 | |
79 | if (plotapp) { |
80 | plotapp->quit(); |
81 | delete plotapp; |
82 | plotapp = NULL; |
83 | } |
84 | } |
85 | |
86 | void ProxWidget::paintEvent(QPaintEvent *event) |
87 | { |
88 | QPainter painter(this); |
89 | QPainterPath penPath, whitePath, greyPath, cursorAPath, cursorBPath; |
90 | QRect r; |
91 | QBrush brush(QColor(100, 255, 100)); |
92 | QPen pen(QColor(100, 255, 100)); |
93 | |
94 | painter.setFont(QFont("Arial", 10)); |
95 | |
96 | if(GraphStart < 0) { |
97 | GraphStart = 0; |
98 | } |
99 | |
100 | r = rect(); |
101 | |
102 | painter.fillRect(r, QColor(0, 0, 0)); |
103 | |
104 | whitePath.moveTo(r.left() + 40, r.top()); |
105 | whitePath.lineTo(r.left() + 40, r.bottom()); |
106 | |
107 | int zeroHeight = r.top() + (r.bottom() - r.top()) / 2; |
108 | |
109 | greyPath.moveTo(r.left(), zeroHeight); |
110 | greyPath.lineTo(r.right(), zeroHeight); |
111 | painter.setPen(QColor(100, 100, 100)); |
112 | painter.drawPath(greyPath); |
113 | |
114 | int startMax = |
115 | (GraphTraceLen - (int)((r.right() - r.left() - 40) / GraphPixelsPerPoint)); |
116 | if(startMax < 0) { |
117 | startMax = 0; |
118 | } |
119 | if(GraphStart > startMax) { |
120 | GraphStart = startMax; |
121 | } |
122 | |
123 | int absYMax = 1; |
124 | |
125 | int i; |
126 | for(i = GraphStart; ; i++) { |
127 | if(i >= GraphTraceLen) { |
128 | break; |
129 | } |
130 | if(fabs((double)GraphBuffer[i]) > absYMax) { |
131 | absYMax = (int)fabs((double)GraphBuffer[i]); |
132 | } |
133 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); |
134 | if(x > r.right()) { |
135 | break; |
136 | } |
137 | } |
138 | |
139 | absYMax = (int)(absYMax*1.2 + 1); |
140 | |
141 | // number of points that will be plotted |
142 | int span = (int)((r.right() - r.left()) / GraphPixelsPerPoint); |
143 | // one label every 100 pixels, let us say |
144 | int labels = (r.right() - r.left() - 40) / 100; |
145 | if(labels <= 0) labels = 1; |
146 | int pointsPerLabel = span / labels; |
147 | if(pointsPerLabel <= 0) pointsPerLabel = 1; |
148 | |
149 | int yMin = INT_MAX; |
150 | int yMax = INT_MIN; |
151 | int yMean = 0; |
152 | int n = 0; |
153 | |
154 | for(i = GraphStart; ; i++) { |
155 | if(i >= GraphTraceLen) { |
156 | break; |
157 | } |
158 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); |
159 | if(x > r.right() + GraphPixelsPerPoint) { |
160 | break; |
161 | } |
162 | |
163 | int y = GraphBuffer[i]; |
164 | if(y < yMin) { |
165 | yMin = y; |
166 | } |
167 | if(y > yMax) { |
168 | yMax = y; |
169 | } |
170 | yMean += y; |
171 | n++; |
172 | |
173 | y = (y * (r.top() - r.bottom()) / (2*absYMax)) + zeroHeight; |
174 | if(i == GraphStart) { |
175 | penPath.moveTo(x, y); |
176 | } else { |
177 | penPath.lineTo(x, y); |
178 | } |
179 | |
180 | if(GraphPixelsPerPoint > 10) { |
181 | QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3)); |
182 | painter.fillRect(f, brush); |
183 | } |
184 | |
185 | if(((i - GraphStart) % pointsPerLabel == 0) && i != GraphStart) { |
186 | whitePath.moveTo(x, zeroHeight - 3); |
187 | whitePath.lineTo(x, zeroHeight + 3); |
188 | |
189 | char str[100]; |
190 | sprintf(str, "+%d", (i - GraphStart)); |
191 | |
192 | painter.setPen(QColor(255, 255, 255)); |
193 | QRect size; |
194 | QFontMetrics metrics(painter.font()); |
195 | size = metrics.boundingRect(str); |
196 | painter.drawText(x - (size.right() - size.left()), zeroHeight + 9, str); |
197 | |
198 | penPath.moveTo(x,y); |
199 | } |
200 | |
201 | if(i == CursorAPos || i == CursorBPos) { |
202 | QPainterPath *cursorPath; |
203 | |
204 | if(i == CursorAPos) { |
205 | cursorPath = &cursorAPath; |
206 | } else { |
207 | cursorPath = &cursorBPath; |
208 | } |
209 | cursorPath->moveTo(x, r.top()); |
210 | cursorPath->lineTo(x, r.bottom()); |
211 | penPath.moveTo(x, y); |
212 | } |
213 | } |
214 | |
215 | if(n != 0) { |
216 | yMean /= n; |
217 | } |
218 | |
219 | painter.setPen(QColor(255, 255, 255)); |
220 | painter.drawPath(whitePath); |
221 | painter.setPen(pen); |
222 | painter.drawPath(penPath); |
223 | painter.setPen(QColor(255, 255, 0)); |
224 | painter.drawPath(cursorAPath); |
225 | painter.setPen(QColor(255, 0, 255)); |
226 | painter.drawPath(cursorBPath); |
227 | |
228 | char str[100]; |
229 | sprintf(str, "@%d max=%d min=%d mean=%d n=%d/%d dt=%d [%.3f]", |
230 | GraphStart, yMax, yMin, yMean, n, GraphTraceLen, |
231 | CursorBPos - CursorAPos, (CursorBPos - CursorAPos)/CursorScaleFactor); |
232 | |
233 | painter.setPen(QColor(255, 255, 255)); |
234 | painter.drawText(50, r.bottom() - 20, str); |
235 | } |
236 | |
237 | ProxWidget::ProxWidget(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1) |
238 | { |
239 | resize(600, 500); |
240 | |
241 | QPalette palette(QColor(0,0,0,0)); |
242 | palette.setColor(QPalette::WindowText, QColor(255,255,255)); |
243 | palette.setColor(QPalette::Text, QColor(255,255,255)); |
244 | palette.setColor(QPalette::Button, QColor(100, 100, 100)); |
245 | setPalette(palette); |
246 | setAutoFillBackground(true); |
247 | } |
248 | |
249 | void ProxWidget::closeEvent(QCloseEvent *event) |
250 | { |
251 | event->ignore(); |
252 | this->hide(); |
253 | } |
254 | |
255 | void ProxWidget::mouseMoveEvent(QMouseEvent *event) |
256 | { |
257 | int x = event->x(); |
258 | x -= 40; |
259 | x = (int)(x / GraphPixelsPerPoint); |
260 | x += GraphStart; |
261 | if((event->buttons() & Qt::LeftButton)) { |
262 | CursorAPos = x; |
263 | } else if (event->buttons() & Qt::RightButton) { |
264 | CursorBPos = x; |
265 | } |
266 | |
267 | |
268 | this->update(); |
269 | } |
270 | |
271 | void ProxWidget::keyPressEvent(QKeyEvent *event) |
272 | { |
273 | switch(event->key()) { |
274 | case Qt::Key_Down: |
275 | if(GraphPixelsPerPoint <= 50) { |
276 | GraphPixelsPerPoint *= 2; |
277 | } |
278 | break; |
279 | |
280 | case Qt::Key_Up: |
281 | if(GraphPixelsPerPoint >= 0.02) { |
282 | GraphPixelsPerPoint /= 2; |
283 | } |
284 | break; |
285 | |
286 | case Qt::Key_Right: |
287 | if(GraphPixelsPerPoint < 20) { |
288 | GraphStart += (int)(20 / GraphPixelsPerPoint); |
289 | } else { |
290 | GraphStart++; |
291 | } |
292 | break; |
293 | |
294 | case Qt::Key_Left: |
295 | if(GraphPixelsPerPoint < 20) { |
296 | GraphStart -= (int)(20 / GraphPixelsPerPoint); |
297 | } else { |
298 | GraphStart--; |
299 | } |
300 | break; |
301 | |
302 | default: |
303 | QWidget::keyPressEvent(event); |
304 | return; |
305 | break; |
306 | } |
307 | |
308 | this->update(); |
309 | } |