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a553f267 | 1 | //----------------------------------------------------------------------------- |
212ef3a0 | 2 | // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net> |
3 | // | |
a553f267 | 4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // GUI (QT) | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
6658905f | 11 | #include <iostream> |
12 | #include <QPainterPath> | |
13 | #include <QBrush> | |
14 | #include <QPen> | |
15 | #include <QTimer> | |
16 | #include <QCloseEvent> | |
17 | #include <QMouseEvent> | |
18 | #include <QKeyEvent> | |
19 | #include <math.h> | |
20 | #include <limits.h> | |
c86cc308 | 21 | #include <stdio.h> |
6658905f | 22 | #include "proxguiqt.h" |
23 | #include "proxgui.h" | |
24 | ||
25 | void ProxGuiQT::ShowGraphWindow(void) | |
26 | { | |
27 | emit ShowGraphWindowSignal(); | |
28 | } | |
29 | ||
30 | void ProxGuiQT::RepaintGraphWindow(void) | |
31 | { | |
32 | emit RepaintGraphWindowSignal(); | |
33 | } | |
34 | ||
35 | void ProxGuiQT::HideGraphWindow(void) | |
36 | { | |
37 | emit HideGraphWindowSignal(); | |
38 | } | |
39 | ||
40 | void ProxGuiQT::_ShowGraphWindow(void) | |
41 | { | |
42 | if(!plotapp) | |
43 | return; | |
44 | ||
45 | if (!plotwidget) | |
46 | plotwidget = new ProxWidget(); | |
47 | ||
48 | plotwidget->show(); | |
49 | } | |
50 | ||
51 | void ProxGuiQT::_RepaintGraphWindow(void) | |
52 | { | |
53 | if (!plotapp || !plotwidget) | |
54 | return; | |
55 | ||
56 | plotwidget->update(); | |
57 | } | |
58 | ||
59 | void ProxGuiQT::_HideGraphWindow(void) | |
60 | { | |
61 | if (!plotapp || !plotwidget) | |
62 | return; | |
63 | ||
64 | plotwidget->hide(); | |
65 | } | |
66 | ||
67 | void ProxGuiQT::MainLoop() | |
68 | { | |
69 | plotapp = new QApplication(argc, argv); | |
70 | ||
71 | connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow())); | |
72 | connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow())); | |
73 | connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow())); | |
74 | ||
75 | plotapp->exec(); | |
76 | } | |
77 | ||
78 | ProxGuiQT::ProxGuiQT(int argc, char **argv) : plotapp(NULL), plotwidget(NULL), | |
79 | argc(argc), argv(argv) | |
80 | { | |
81 | } | |
82 | ||
83 | ProxGuiQT::~ProxGuiQT(void) | |
84 | { | |
85 | if (plotwidget) { | |
86 | delete plotwidget; | |
87 | plotwidget = NULL; | |
88 | } | |
89 | ||
90 | if (plotapp) { | |
91 | plotapp->quit(); | |
92 | delete plotapp; | |
93 | plotapp = NULL; | |
94 | } | |
95 | } | |
96 | ||
97 | void ProxWidget::paintEvent(QPaintEvent *event) | |
98 | { | |
99 | QPainter painter(this); | |
f4434ad2 | 100 | QPainterPath penPath, whitePath, greyPath, lightgreyPath, cursorAPath, cursorBPath; |
6658905f | 101 | QRect r; |
102 | QBrush brush(QColor(100, 255, 100)); | |
103 | QPen pen(QColor(100, 255, 100)); | |
104 | ||
105 | painter.setFont(QFont("Arial", 10)); | |
106 | ||
107 | if(GraphStart < 0) { | |
108 | GraphStart = 0; | |
109 | } | |
110 | ||
0bf5872f | 111 | if (CursorAPos > GraphTraceLen) |
112 | CursorAPos= 0; | |
113 | if(CursorBPos > GraphTraceLen) | |
114 | CursorBPos= 0; | |
115 | ||
6658905f | 116 | r = rect(); |
117 | ||
118 | painter.fillRect(r, QColor(0, 0, 0)); | |
119 | ||
120 | whitePath.moveTo(r.left() + 40, r.top()); | |
121 | whitePath.lineTo(r.left() + 40, r.bottom()); | |
122 | ||
123 | int zeroHeight = r.top() + (r.bottom() - r.top()) / 2; | |
124 | ||
125 | greyPath.moveTo(r.left(), zeroHeight); | |
126 | greyPath.lineTo(r.right(), zeroHeight); | |
127 | painter.setPen(QColor(100, 100, 100)); | |
128 | painter.drawPath(greyPath); | |
f4434ad2 | 129 | |
130 | // plot X and Y grid lines | |
131 | int i; | |
132 | if ((PlotGridX > 0) && ((PlotGridX * GraphPixelsPerPoint) > 1)) { | |
ff8216cb | 133 | for(i = 40; i < r.right(); i += (int)(PlotGridX * GraphPixelsPerPoint)) { |
f4434ad2 | 134 | //SelectObject(hdc, GreyPenLite); |
135 | //MoveToEx(hdc, r.left + i, r.top, NULL); | |
136 | //LineTo(hdc, r.left + i, r.bottom); | |
137 | lightgreyPath.moveTo(r.left()+i,r.top()); | |
138 | lightgreyPath.lineTo(r.left()+i,r.bottom()); | |
139 | painter.drawPath(lightgreyPath); | |
140 | } | |
141 | } | |
142 | if ((PlotGridY > 0) && ((PlotGridY * GraphPixelsPerPoint) > 1)){ | |
143 | for(i = 0; i < ((r.top() + r.bottom())>>1); i += (int)(PlotGridY * GraphPixelsPerPoint)) { | |
ff8216cb | 144 | lightgreyPath.moveTo(r.left() + 40,zeroHeight + i); |
f4434ad2 | 145 | lightgreyPath.lineTo(r.right(),zeroHeight + i); |
146 | painter.drawPath(lightgreyPath); | |
ff8216cb | 147 | lightgreyPath.moveTo(r.left() + 40,zeroHeight - i); |
f4434ad2 | 148 | lightgreyPath.lineTo(r.right(),zeroHeight - i); |
149 | painter.drawPath(lightgreyPath); | |
150 | } | |
151 | } | |
6658905f | 152 | |
153 | int startMax = | |
154 | (GraphTraceLen - (int)((r.right() - r.left() - 40) / GraphPixelsPerPoint)); | |
155 | if(startMax < 0) { | |
156 | startMax = 0; | |
157 | } | |
158 | if(GraphStart > startMax) { | |
159 | GraphStart = startMax; | |
160 | } | |
161 | ||
162 | int absYMax = 1; | |
163 | ||
6658905f | 164 | for(i = GraphStart; ; i++) { |
165 | if(i >= GraphTraceLen) { | |
166 | break; | |
167 | } | |
168 | if(fabs((double)GraphBuffer[i]) > absYMax) { | |
169 | absYMax = (int)fabs((double)GraphBuffer[i]); | |
170 | } | |
171 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); | |
172 | if(x > r.right()) { | |
173 | break; | |
174 | } | |
175 | } | |
176 | ||
177 | absYMax = (int)(absYMax*1.2 + 1); | |
178 | ||
179 | // number of points that will be plotted | |
180 | int span = (int)((r.right() - r.left()) / GraphPixelsPerPoint); | |
181 | // one label every 100 pixels, let us say | |
182 | int labels = (r.right() - r.left() - 40) / 100; | |
183 | if(labels <= 0) labels = 1; | |
184 | int pointsPerLabel = span / labels; | |
185 | if(pointsPerLabel <= 0) pointsPerLabel = 1; | |
186 | ||
187 | int yMin = INT_MAX; | |
188 | int yMax = INT_MIN; | |
189 | int yMean = 0; | |
190 | int n = 0; | |
191 | ||
192 | for(i = GraphStart; ; i++) { | |
193 | if(i >= GraphTraceLen) { | |
194 | break; | |
195 | } | |
196 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); | |
197 | if(x > r.right() + GraphPixelsPerPoint) { | |
198 | break; | |
199 | } | |
200 | ||
201 | int y = GraphBuffer[i]; | |
202 | if(y < yMin) { | |
203 | yMin = y; | |
204 | } | |
205 | if(y > yMax) { | |
206 | yMax = y; | |
207 | } | |
208 | yMean += y; | |
209 | n++; | |
210 | ||
211 | y = (y * (r.top() - r.bottom()) / (2*absYMax)) + zeroHeight; | |
212 | if(i == GraphStart) { | |
213 | penPath.moveTo(x, y); | |
214 | } else { | |
215 | penPath.lineTo(x, y); | |
216 | } | |
217 | ||
218 | if(GraphPixelsPerPoint > 10) { | |
219 | QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3)); | |
220 | painter.fillRect(f, brush); | |
221 | } | |
222 | ||
223 | if(((i - GraphStart) % pointsPerLabel == 0) && i != GraphStart) { | |
224 | whitePath.moveTo(x, zeroHeight - 3); | |
225 | whitePath.lineTo(x, zeroHeight + 3); | |
226 | ||
227 | char str[100]; | |
228 | sprintf(str, "+%d", (i - GraphStart)); | |
229 | ||
230 | painter.setPen(QColor(255, 255, 255)); | |
231 | QRect size; | |
232 | QFontMetrics metrics(painter.font()); | |
233 | size = metrics.boundingRect(str); | |
234 | painter.drawText(x - (size.right() - size.left()), zeroHeight + 9, str); | |
235 | ||
236 | penPath.moveTo(x,y); | |
237 | } | |
238 | ||
239 | if(i == CursorAPos || i == CursorBPos) { | |
240 | QPainterPath *cursorPath; | |
241 | ||
242 | if(i == CursorAPos) { | |
243 | cursorPath = &cursorAPath; | |
244 | } else { | |
245 | cursorPath = &cursorBPath; | |
246 | } | |
247 | cursorPath->moveTo(x, r.top()); | |
248 | cursorPath->lineTo(x, r.bottom()); | |
249 | penPath.moveTo(x, y); | |
250 | } | |
251 | } | |
252 | ||
253 | if(n != 0) { | |
254 | yMean /= n; | |
255 | } | |
256 | ||
257 | painter.setPen(QColor(255, 255, 255)); | |
258 | painter.drawPath(whitePath); | |
259 | painter.setPen(pen); | |
260 | painter.drawPath(penPath); | |
261 | painter.setPen(QColor(255, 255, 0)); | |
262 | painter.drawPath(cursorAPath); | |
263 | painter.setPen(QColor(255, 0, 255)); | |
264 | painter.drawPath(cursorBPath); | |
265 | ||
346ad5fb | 266 | char str[200]; |
67b9b62a | 267 | sprintf(str, "@%d max=%d min=%d mean=%d n=%d/%d dt=%d [%.3f] zoom=%.3f CursorA=%d [%d] CursorB=%d [%d]", |
6658905f | 268 | GraphStart, yMax, yMin, yMean, n, GraphTraceLen, |
af2d53cb | 269 | CursorBPos - CursorAPos, (CursorBPos - CursorAPos)/CursorScaleFactor,GraphPixelsPerPoint,CursorAPos,GraphBuffer[CursorAPos],CursorBPos,GraphBuffer[CursorBPos]); |
6658905f | 270 | |
271 | painter.setPen(QColor(255, 255, 255)); | |
272 | painter.drawText(50, r.bottom() - 20, str); | |
273 | } | |
274 | ||
275 | ProxWidget::ProxWidget(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1) | |
276 | { | |
277 | resize(600, 500); | |
278 | ||
279 | QPalette palette(QColor(0,0,0,0)); | |
280 | palette.setColor(QPalette::WindowText, QColor(255,255,255)); | |
281 | palette.setColor(QPalette::Text, QColor(255,255,255)); | |
282 | palette.setColor(QPalette::Button, QColor(100, 100, 100)); | |
283 | setPalette(palette); | |
284 | setAutoFillBackground(true); | |
285 | } | |
286 | ||
287 | void ProxWidget::closeEvent(QCloseEvent *event) | |
288 | { | |
289 | event->ignore(); | |
290 | this->hide(); | |
291 | } | |
292 | ||
293 | void ProxWidget::mouseMoveEvent(QMouseEvent *event) | |
294 | { | |
295 | int x = event->x(); | |
296 | x -= 40; | |
297 | x = (int)(x / GraphPixelsPerPoint); | |
298 | x += GraphStart; | |
299 | if((event->buttons() & Qt::LeftButton)) { | |
300 | CursorAPos = x; | |
301 | } else if (event->buttons() & Qt::RightButton) { | |
302 | CursorBPos = x; | |
303 | } | |
304 | ||
305 | ||
306 | this->update(); | |
307 | } | |
308 | ||
309 | void ProxWidget::keyPressEvent(QKeyEvent *event) | |
310 | { | |
311 | switch(event->key()) { | |
312 | case Qt::Key_Down: | |
313 | if(GraphPixelsPerPoint <= 50) { | |
314 | GraphPixelsPerPoint *= 2; | |
315 | } | |
316 | break; | |
317 | ||
318 | case Qt::Key_Up: | |
319 | if(GraphPixelsPerPoint >= 0.02) { | |
320 | GraphPixelsPerPoint /= 2; | |
321 | } | |
322 | break; | |
323 | ||
324 | case Qt::Key_Right: | |
325 | if(GraphPixelsPerPoint < 20) { | |
326 | GraphStart += (int)(20 / GraphPixelsPerPoint); | |
327 | } else { | |
328 | GraphStart++; | |
329 | } | |
330 | break; | |
331 | ||
332 | case Qt::Key_Left: | |
333 | if(GraphPixelsPerPoint < 20) { | |
334 | GraphStart -= (int)(20 / GraphPixelsPerPoint); | |
335 | } else { | |
336 | GraphStart--; | |
337 | } | |
338 | break; | |
339 | ||
340 | default: | |
341 | QWidget::keyPressEvent(event); | |
342 | return; | |
343 | break; | |
344 | } | |
345 | ||
346 | this->update(); | |
347 | } |