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1 | //----------------------------------------------------------------------------- |
212ef3a0 |
2 | // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net> |
3 | // |
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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 | |
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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> |
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21 | #include <stdio.h> |
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22 | #include "proxguiqt.h" |
23 | #include "proxgui.h" |
24 | |
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25 | int GridOffset= 0; |
26 | bool GridLocked= 0; |
27 | int startMax; |
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28 | int PageWidth; |
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29 | |
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30 | void ProxGuiQT::ShowGraphWindow(void) |
31 | { |
32 | emit ShowGraphWindowSignal(); |
33 | } |
34 | |
35 | void ProxGuiQT::RepaintGraphWindow(void) |
36 | { |
37 | emit RepaintGraphWindowSignal(); |
38 | } |
39 | |
40 | void ProxGuiQT::HideGraphWindow(void) |
41 | { |
42 | emit HideGraphWindowSignal(); |
43 | } |
44 | |
45 | void ProxGuiQT::_ShowGraphWindow(void) |
46 | { |
47 | if(!plotapp) |
48 | return; |
49 | |
50 | if (!plotwidget) |
51 | plotwidget = new ProxWidget(); |
52 | |
53 | plotwidget->show(); |
54 | } |
55 | |
56 | void ProxGuiQT::_RepaintGraphWindow(void) |
57 | { |
58 | if (!plotapp || !plotwidget) |
59 | return; |
60 | |
61 | plotwidget->update(); |
62 | } |
63 | |
64 | void ProxGuiQT::_HideGraphWindow(void) |
65 | { |
66 | if (!plotapp || !plotwidget) |
67 | return; |
68 | |
69 | plotwidget->hide(); |
70 | } |
71 | |
72 | void ProxGuiQT::MainLoop() |
73 | { |
74 | plotapp = new QApplication(argc, argv); |
75 | |
76 | connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow())); |
77 | connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow())); |
78 | connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow())); |
79 | |
80 | plotapp->exec(); |
81 | } |
82 | |
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83 | ProxGuiQT::ProxGuiQT(int argc, char **argv) : plotapp(NULL), plotwidget(NULL), argc(argc), argv(argv) {} |
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84 | |
85 | ProxGuiQT::~ProxGuiQT(void) |
86 | { |
87 | if (plotwidget) { |
88 | delete plotwidget; |
89 | plotwidget = NULL; |
90 | } |
91 | |
92 | if (plotapp) { |
93 | plotapp->quit(); |
94 | delete plotapp; |
95 | plotapp = NULL; |
96 | } |
97 | } |
98 | |
99 | void ProxWidget::paintEvent(QPaintEvent *event) |
100 | { |
101 | QPainter painter(this); |
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102 | QPainterPath penPath, whitePath, greyPath, lightgreyPath, cursorAPath, cursorBPath; |
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103 | QRect r; |
104 | QBrush brush(QColor(100, 255, 100)); |
105 | QPen pen(QColor(100, 255, 100)); |
106 | |
107 | painter.setFont(QFont("Arial", 10)); |
108 | |
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109 | if(GraphStart < 0) |
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110 | GraphStart = 0; |
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111 | |
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112 | if (CursorAPos > GraphTraceLen) |
113 | CursorAPos= 0; |
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114 | |
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115 | if(CursorBPos > GraphTraceLen) |
116 | CursorBPos= 0; |
117 | |
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118 | r = rect(); |
119 | |
120 | painter.fillRect(r, QColor(0, 0, 0)); |
121 | |
122 | whitePath.moveTo(r.left() + 40, r.top()); |
123 | whitePath.lineTo(r.left() + 40, r.bottom()); |
124 | |
125 | int zeroHeight = r.top() + (r.bottom() - r.top()) / 2; |
126 | |
127 | greyPath.moveTo(r.left(), zeroHeight); |
128 | greyPath.lineTo(r.right(), zeroHeight); |
129 | painter.setPen(QColor(100, 100, 100)); |
130 | painter.drawPath(greyPath); |
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131 | |
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132 | PageWidth= (int)((r.right() - r.left() - 40) / GraphPixelsPerPoint); |
133 | |
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134 | // plot X and Y grid lines |
135 | int i; |
136 | if ((PlotGridX > 0) && ((PlotGridX * GraphPixelsPerPoint) > 1)) { |
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137 | for(i = 40 + (GridOffset * GraphPixelsPerPoint); i < r.right(); i += (int)(PlotGridX * GraphPixelsPerPoint)) { |
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138 | //SelectObject(hdc, GreyPenLite); |
139 | //MoveToEx(hdc, r.left + i, r.top, NULL); |
140 | //LineTo(hdc, r.left + i, r.bottom); |
141 | lightgreyPath.moveTo(r.left()+i,r.top()); |
eb7eab85 |
142 | lightgreyPath.lineTo(r.left()+i,r.bottom()); |
143 | painter.drawPath(lightgreyPath); |
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144 | } |
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145 | } |
146 | if ((PlotGridY > 0) && ((PlotGridY * GraphPixelsPerPoint) > 1)){ |
147 | for(i = 0; i < ((r.top() + r.bottom())>>1); i += (int)(PlotGridY * GraphPixelsPerPoint)) { |
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148 | lightgreyPath.moveTo(r.left() + 40,zeroHeight + i); |
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149 | lightgreyPath.lineTo(r.right(),zeroHeight + i); |
150 | painter.drawPath(lightgreyPath); |
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151 | lightgreyPath.moveTo(r.left() + 40,zeroHeight - i); |
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152 | lightgreyPath.lineTo(r.right(),zeroHeight - i); |
153 | painter.drawPath(lightgreyPath); |
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154 | } |
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155 | } |
156 | |
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157 | startMax = (GraphTraceLen - (int)((r.right() - r.left() - 40) / GraphPixelsPerPoint)); |
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158 | |
159 | if(startMax < 0) |
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160 | startMax = 0; |
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161 | |
162 | if(GraphStart > startMax) |
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163 | GraphStart = startMax; |
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164 | |
165 | int absYMax = 1; |
166 | |
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167 | for(i = GraphStart; ; i++) { |
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168 | |
169 | if(i >= GraphTraceLen) break; |
170 | |
171 | if(fabs((double)GraphBuffer[i]) > absYMax) |
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172 | absYMax = (int)fabs((double)GraphBuffer[i]); |
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173 | |
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174 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); |
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175 | |
176 | if(x > r.right()) break; |
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177 | } |
178 | |
179 | absYMax = (int)(absYMax*1.2 + 1); |
180 | |
181 | // number of points that will be plotted |
182 | int span = (int)((r.right() - r.left()) / GraphPixelsPerPoint); |
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183 | |
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184 | // one label every 100 pixels, let us say |
185 | int labels = (r.right() - r.left() - 40) / 100; |
186 | if(labels <= 0) labels = 1; |
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187 | |
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188 | int pointsPerLabel = span / labels; |
189 | if(pointsPerLabel <= 0) pointsPerLabel = 1; |
190 | |
191 | int yMin = INT_MAX; |
192 | int yMax = INT_MIN; |
193 | int yMean = 0; |
194 | int n = 0; |
195 | |
196 | for(i = GraphStart; ; i++) { |
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197 | if(i >= GraphTraceLen) break; |
198 | |
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199 | int x = 40 + (int)((i - GraphStart)*GraphPixelsPerPoint); |
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200 | if(x > r.right() + GraphPixelsPerPoint) break; |
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201 | |
202 | int y = GraphBuffer[i]; |
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203 | if(y < yMin) |
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204 | yMin = y; |
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205 | |
206 | if(y > yMax) |
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207 | yMax = y; |
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208 | |
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209 | yMean += y; |
210 | n++; |
211 | |
212 | y = (y * (r.top() - r.bottom()) / (2*absYMax)) + zeroHeight; |
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213 | |
214 | if(i == GraphStart) |
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215 | penPath.moveTo(x, y); |
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216 | else |
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217 | penPath.lineTo(x, y); |
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218 | |
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219 | |
220 | if(GraphPixelsPerPoint > 10) { |
221 | QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3)); |
222 | painter.fillRect(f, brush); |
223 | } |
224 | |
225 | if(((i - GraphStart) % pointsPerLabel == 0) && i != GraphStart) { |
226 | whitePath.moveTo(x, zeroHeight - 3); |
227 | whitePath.lineTo(x, zeroHeight + 3); |
228 | |
229 | char str[100]; |
230 | sprintf(str, "+%d", (i - GraphStart)); |
231 | |
232 | painter.setPen(QColor(255, 255, 255)); |
233 | QRect size; |
234 | QFontMetrics metrics(painter.font()); |
235 | size = metrics.boundingRect(str); |
236 | painter.drawText(x - (size.right() - size.left()), zeroHeight + 9, str); |
237 | |
238 | penPath.moveTo(x,y); |
239 | } |
240 | |
241 | if(i == CursorAPos || i == CursorBPos) { |
242 | QPainterPath *cursorPath; |
243 | |
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244 | if(i == CursorAPos) |
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245 | cursorPath = &cursorAPath; |
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246 | else |
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247 | cursorPath = &cursorBPath; |
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248 | |
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249 | cursorPath->moveTo(x, r.top()); |
250 | cursorPath->lineTo(x, r.bottom()); |
251 | penPath.moveTo(x, y); |
252 | } |
253 | } |
254 | |
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255 | if(n != 0) |
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256 | yMean /= n; |
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257 | |
258 | painter.setPen(QColor(255, 255, 255)); |
259 | painter.drawPath(whitePath); |
260 | painter.setPen(pen); |
261 | painter.drawPath(penPath); |
262 | painter.setPen(QColor(255, 255, 0)); |
263 | painter.drawPath(cursorAPath); |
264 | painter.setPen(QColor(255, 0, 255)); |
265 | painter.drawPath(cursorBPath); |
266 | |
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267 | char str[200]; |
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268 | sprintf(str, "@%d max=%d min=%d mean=%d n=%d/%d dt=%d [%.3f] zoom=%.3f CursorA=%d [%d] CursorB=%d [%d] GridX=%d GridY=%d (%s)", |
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269 | GraphStart, yMax, yMin, yMean, n, GraphTraceLen, |
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270 | CursorBPos - CursorAPos, |
271 | (CursorBPos - CursorAPos)/CursorScaleFactor, |
272 | GraphPixelsPerPoint, |
273 | CursorAPos, |
274 | GraphBuffer[CursorAPos], |
275 | CursorBPos, |
276 | GraphBuffer[CursorBPos], |
277 | PlotGridXdefault, |
278 | PlotGridYdefault, |
279 | GridLocked ? "Locked" : "Unlocked" |
280 | ); |
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281 | |
282 | painter.setPen(QColor(255, 255, 255)); |
283 | painter.drawText(50, r.bottom() - 20, str); |
284 | } |
285 | |
286 | ProxWidget::ProxWidget(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1) |
287 | { |
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288 | resize(600, 300); |
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289 | |
290 | QPalette palette(QColor(0,0,0,0)); |
291 | palette.setColor(QPalette::WindowText, QColor(255,255,255)); |
292 | palette.setColor(QPalette::Text, QColor(255,255,255)); |
293 | palette.setColor(QPalette::Button, QColor(100, 100, 100)); |
294 | setPalette(palette); |
295 | setAutoFillBackground(true); |
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296 | CursorAPos = 0; |
297 | CursorBPos = 0; |
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298 | } |
299 | |
300 | void ProxWidget::closeEvent(QCloseEvent *event) |
301 | { |
302 | event->ignore(); |
303 | this->hide(); |
304 | } |
305 | |
306 | void ProxWidget::mouseMoveEvent(QMouseEvent *event) |
307 | { |
308 | int x = event->x(); |
309 | x -= 40; |
310 | x = (int)(x / GraphPixelsPerPoint); |
311 | x += GraphStart; |
312 | if((event->buttons() & Qt::LeftButton)) { |
313 | CursorAPos = x; |
314 | } else if (event->buttons() & Qt::RightButton) { |
315 | CursorBPos = x; |
316 | } |
317 | |
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318 | this->update(); |
319 | } |
320 | |
321 | void ProxWidget::keyPressEvent(QKeyEvent *event) |
322 | { |
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323 | int offset; |
324 | int gridchanged; |
325 | |
326 | gridchanged= 0; |
327 | |
328 | if(event->modifiers() & Qt::ShiftModifier) { |
329 | if (PlotGridX) |
330 | offset= PageWidth - (PageWidth % PlotGridX); |
331 | else |
332 | offset= PageWidth; |
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333 | } else |
334 | if(event->modifiers() & Qt::ControlModifier) |
335 | offset= 1; |
336 | else |
337 | offset= (int)(20 / GraphPixelsPerPoint); |
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338 | |
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339 | switch(event->key()) { |
340 | case Qt::Key_Down: |
341 | if(GraphPixelsPerPoint <= 50) { |
342 | GraphPixelsPerPoint *= 2; |
343 | } |
344 | break; |
345 | |
346 | case Qt::Key_Up: |
347 | if(GraphPixelsPerPoint >= 0.02) { |
348 | GraphPixelsPerPoint /= 2; |
349 | } |
350 | break; |
351 | |
352 | case Qt::Key_Right: |
353 | if(GraphPixelsPerPoint < 20) { |
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354 | if (PlotGridX && GridLocked && GraphStart < startMax){ |
355 | GridOffset -= offset; |
356 | GridOffset %= PlotGridX; |
357 | gridchanged= 1; |
358 | } |
359 | GraphStart += offset; |
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360 | } else { |
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361 | if (PlotGridX && GridLocked && GraphStart < startMax){ |
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362 | GridOffset--; |
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363 | GridOffset %= PlotGridX; |
364 | gridchanged= 1; |
365 | } |
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366 | GraphStart++; |
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367 | } |
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368 | if(GridOffset < 0) { |
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369 | GridOffset += PlotGridX; |
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370 | } |
371 | if (gridchanged) |
372 | if (GraphStart > startMax) { |
373 | GridOffset += (GraphStart - startMax); |
374 | GridOffset %= PlotGridX; |
375 | } |
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376 | break; |
377 | |
378 | case Qt::Key_Left: |
379 | if(GraphPixelsPerPoint < 20) { |
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380 | if (PlotGridX && GridLocked && GraphStart > 0){ |
381 | GridOffset += offset; |
382 | GridOffset %= PlotGridX; |
383 | gridchanged= 1; |
384 | } |
385 | GraphStart -= offset; |
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386 | } else { |
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387 | if (PlotGridX && GridLocked && GraphStart > 0){ |
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388 | GridOffset++; |
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389 | GridOffset %= PlotGridX; |
390 | gridchanged= 1; |
391 | } |
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392 | GraphStart--; |
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393 | } |
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394 | if (gridchanged){ |
395 | if (GraphStart < 0) |
396 | GridOffset += GraphStart; |
397 | if(GridOffset < 0) |
398 | GridOffset += PlotGridX; |
399 | GridOffset %= PlotGridX; |
400 | } |
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401 | break; |
402 | |
403 | case Qt::Key_G: |
404 | if(PlotGridX || PlotGridY) { |
405 | PlotGridX= 0; |
406 | PlotGridY= 0; |
407 | } else { |
408 | PlotGridX= PlotGridXdefault; |
409 | PlotGridY= PlotGridYdefault; |
410 | } |
411 | break; |
412 | |
413 | case Qt::Key_H: |
414 | puts("Plot Window Keystrokes:\n"); |
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415 | puts(" Key Action\n"); |
416 | puts(" DOWN Zoom in"); |
417 | puts(" G Toggle grid display"); |
418 | puts(" H Show help"); |
419 | puts(" L Toggle lock grid relative to samples"); |
420 | puts(" LEFT Move left"); |
421 | puts(" <CTL>LEFT Move left 1 sample"); |
422 | puts(" <SHIFT>LEFT Page left"); |
423 | puts(" LEFT-MOUSE-CLICK Set yellow cursor"); |
424 | puts(" Q Hide window"); |
425 | puts(" RIGHT Move right"); |
426 | puts(" <CTL>RIGHT Move right 1 sample"); |
427 | puts(" <SHIFT>RIGHT Page right"); |
428 | puts(" RIGHT-MOUSE-CLICK Set purple cursor"); |
429 | puts(" UP Zoom out"); |
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430 | puts(""); |
431 | puts("Use client window 'data help' for more plot commands\n"); |
432 | break; |
433 | |
434 | case Qt::Key_L: |
435 | GridLocked= !GridLocked; |
436 | break; |
437 | |
438 | case Qt::Key_Q: |
439 | this->hide(); |
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440 | break; |
441 | |
442 | default: |
443 | QWidget::keyPressEvent(event); |
444 | return; |
445 | break; |
446 | } |
447 | |
448 | this->update(); |
449 | } |