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[proxmark3-svn] / client / proxguiqt.cpp
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net>
3 //
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 #include "proxguiqt.h"
11
12 #include <stdbool.h>
13 #include <iostream>
14 #include <QPainterPath>
15 #include <QBrush>
16 #include <QPen>
17 #include <QTimer>
18 #include <QCloseEvent>
19 #include <QMouseEvent>
20 #include <QKeyEvent>
21 #include <math.h>
22 #include <limits.h>
23 #include <stdio.h>
24 #include <QSlider>
25 #include <QHBoxLayout>
26 #include <string.h>
27 #include "proxgui.h"
28 #include <QtGui>
29 //#include <ctime>
30
31 bool g_useOverlays = false;
32 int g_absVMax = 0;
33 int startMax;
34 int PageWidth;
35 int unlockStart = 0;
36
37 void ProxGuiQT::ShowGraphWindow(void)
38 {
39 emit ShowGraphWindowSignal();
40 }
41
42 void ProxGuiQT::RepaintGraphWindow(void)
43 {
44 emit RepaintGraphWindowSignal();
45 }
46
47 void ProxGuiQT::HideGraphWindow(void)
48 {
49 emit HideGraphWindowSignal();
50 }
51
52 void ProxGuiQT::Exit(void)
53 {
54 emit ExitSignal();
55 }
56
57 void ProxGuiQT::_ShowGraphWindow(void)
58 {
59 if(!plotapp)
60 return;
61
62 if (!plotwidget)
63 plotwidget = new ProxWidget();
64
65 plotwidget->show();
66 }
67
68 void ProxGuiQT::_RepaintGraphWindow(void)
69 {
70 if (!plotapp || !plotwidget)
71 return;
72
73 plotwidget->update();
74 }
75
76 void ProxGuiQT::_HideGraphWindow(void)
77 {
78 if (!plotapp || !plotwidget)
79 return;
80
81 plotwidget->hide();
82 }
83
84 void ProxGuiQT::_Exit(void) {
85 delete this;
86 }
87 void ProxGuiQT::MainLoop()
88 {
89 plotapp = new QApplication(argc, argv);
90
91 connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow()));
92 connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow()));
93 connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow()));
94 connect(this, SIGNAL(ExitSignal()), this, SLOT(_Exit()));
95
96 plotapp->exec();
97 }
98
99 ProxGuiQT::ProxGuiQT(int argc, char **argv) : plotapp(NULL), plotwidget(NULL),
100 argc(argc), argv(argv)
101 {
102 }
103
104 ProxGuiQT::~ProxGuiQT(void)
105 {
106 //if (plotwidget) {
107 //plotwidget->destroy(true,true);
108 // delete plotwidget;
109 // plotwidget = NULL;
110 //}
111 if (plotapp) {
112 plotapp->quit();
113 delete plotapp;
114 plotapp = NULL;
115 }
116 }
117
118 //--------------------
119 void ProxWidget::applyOperation()
120 {
121 //printf("ApplyOperation()");
122 save_restoreGB(GRAPH_SAVE);
123 memcpy(GraphBuffer, s_Buff, sizeof(int) * GraphTraceLen);
124 RepaintGraphWindow();
125 }
126 void ProxWidget::stickOperation()
127 {
128 save_restoreGB(GRAPH_RESTORE);
129 //printf("stickOperation()");
130 }
131 void ProxWidget::vchange_autocorr(int v)
132 {
133 int ans;
134 ans = AutoCorrelate(GraphBuffer, s_Buff, GraphTraceLen, v, true, false);
135 if (g_debugMode) printf("vchange_autocorr(w:%d): %d\n", v, ans);
136 g_useOverlays = true;
137 RepaintGraphWindow();
138 }
139 void ProxWidget::vchange_askedge(int v)
140 {
141 int ans;
142 //extern int AskEdgeDetect(const int *in, int *out, int len, int threshold);
143 ans = AskEdgeDetect(GraphBuffer, s_Buff, GraphTraceLen, v);
144 if (g_debugMode) printf("vchange_askedge(w:%d)%d\n", v, ans);
145 g_useOverlays = true;
146 RepaintGraphWindow();
147 }
148 void ProxWidget::vchange_dthr_up(int v)
149 {
150 int down = opsController->horizontalSlider_dirthr_down->value();
151 directionalThreshold(GraphBuffer, s_Buff, GraphTraceLen, v, down);
152 //printf("vchange_dthr_up(%d)", v);
153 g_useOverlays = true;
154 RepaintGraphWindow();
155 }
156 void ProxWidget::vchange_dthr_down(int v)
157 {
158 //printf("vchange_dthr_down(%d)", v);
159 int up = opsController->horizontalSlider_dirthr_up->value();
160 directionalThreshold(GraphBuffer,s_Buff, GraphTraceLen, v, up);
161 g_useOverlays = true;
162 RepaintGraphWindow();
163 }
164 ProxWidget::ProxWidget(QWidget *parent, ProxGuiQT *master) : QWidget(parent)
165 {
166 this->master = master;
167 resize(800,500);
168
169 /** Setup the controller widget **/
170
171 controlWidget = new QWidget();
172 opsController = new Ui::Form();
173 opsController->setupUi(controlWidget);
174 //Due to quirks in QT Designer, we need to fiddle a bit
175 opsController->horizontalSlider_dirthr_down->setMinimum(-128);
176 opsController->horizontalSlider_dirthr_down->setMaximum(0);
177 opsController->horizontalSlider_dirthr_down->setValue(-20);
178 opsController->horizontalSlider_dirthr_up->setMinimum(-40);
179 opsController->horizontalSlider_dirthr_up->setMaximum(128);
180 opsController->horizontalSlider_dirthr_up->setValue(20);
181 opsController->horizontalSlider_askedge->setValue(25);
182 opsController->horizontalSlider_window->setValue(4000);
183
184
185 QObject::connect(opsController->pushButton_apply, SIGNAL(clicked()), this, SLOT(applyOperation()));
186 QObject::connect(opsController->pushButton_sticky, SIGNAL(clicked()), this, SLOT(stickOperation()));
187 QObject::connect(opsController->horizontalSlider_window, SIGNAL(valueChanged(int)), this, SLOT(vchange_autocorr(int)));
188 QObject::connect(opsController->horizontalSlider_dirthr_up, SIGNAL(valueChanged(int)), this, SLOT(vchange_dthr_up(int)));
189 QObject::connect(opsController->horizontalSlider_dirthr_down, SIGNAL(valueChanged(int)), this, SLOT(vchange_dthr_down(int)));
190 QObject::connect(opsController->horizontalSlider_askedge, SIGNAL(valueChanged(int)), this, SLOT(vchange_askedge(int)));
191
192 controlWidget->show();
193
194 // Set up the plot widget, which does the actual plotting
195
196 plot = new Plot(this);
197 /*
198 QSlider* slider = new QSlider(Qt::Horizontal);
199 slider->setFocusPolicy(Qt::StrongFocus);
200 slider->setTickPosition(QSlider::TicksBothSides);
201 slider->setTickInterval(10);
202 slider->setSingleStep(1);
203 */
204 QVBoxLayout *layout = new QVBoxLayout;
205 //layout->addWidget(slider);
206 layout->addWidget(plot);
207 setLayout(layout);
208 //printf("Proxwidget Constructor just set layout\r\n");
209 }
210
211 // not 100% sure what i need in this block
212 // feel free to fix - marshmellow...
213 ProxWidget::~ProxWidget(void)
214 {
215 if (controlWidget) {
216 controlWidget->close();
217 delete controlWidget;
218 controlWidget = NULL;
219 }
220
221 if (opsController) {
222 delete opsController;
223 opsController = NULL;
224 }
225
226 if (plot) {
227 plot->close();
228 delete plot;
229 plot = NULL;
230 }
231 }
232 void ProxWidget::closeEvent(QCloseEvent *event)
233 {
234 event->ignore();
235 this->hide();
236 g_useOverlays = false;
237 }
238 void ProxWidget::hideEvent(QHideEvent *event) {
239 controlWidget->hide();
240 plot->hide();
241 }
242 void ProxWidget::showEvent(QShowEvent *event) {
243 controlWidget->show();
244 plot->show();
245 }
246
247 //----------- Plotting
248
249 int Plot::xCoordOf(int i, QRect r )
250 {
251 return r.left() + (int)((i - GraphStart)*GraphPixelsPerPoint);
252 }
253
254 int Plot::yCoordOf(int v, QRect r, int maxVal)
255 {
256 int z = (r.bottom() - r.top())/2;
257 return -(z * v) / maxVal + z;
258 }
259
260 int Plot::valueOf_yCoord(int y, QRect r, int maxVal)
261 {
262 int z = (r.bottom() - r.top())/2;
263 return (y-z) * maxVal / z;
264 }
265 static const QColor GREEN = QColor(100,255,100);
266 static const QColor RED = QColor(255,100,100);
267 static const QColor BLUE = QColor(100,100,255);
268 static const QColor GRAY = QColor(240,240,240);
269
270 QColor Plot::getColor(int graphNum)
271 {
272 switch (graphNum) {
273 case 0: return GREEN; //Green
274 case 1: return RED; //Red
275 case 2: return BLUE; //Blue
276 default: return GRAY; //Gray
277 }
278 }
279
280 void Plot::setMaxAndStart(int *buffer, int len, QRect plotRect)
281 {
282 if (len == 0) return;
283 startMax = (len - (int)((plotRect.right() - plotRect.left() - 40) / GraphPixelsPerPoint));
284 if(startMax < 0) {
285 startMax = 0;
286 }
287 if(GraphStart > startMax) {
288 GraphStart = startMax;
289 }
290 if (GraphStart > len) return;
291 int vMin = INT_MAX, vMax = INT_MIN, v = 0;
292 int sample_index = GraphStart ;
293 for( ; sample_index < len && xCoordOf(sample_index,plotRect) < plotRect.right() ; sample_index++) {
294
295 v = buffer[sample_index];
296 if(v < vMin) vMin = v;
297 if(v > vMax) vMax = v;
298 }
299
300 g_absVMax = 0;
301 if(fabs( (double) vMin) > g_absVMax) g_absVMax = (int)fabs( (double) vMin);
302 if(fabs( (double) vMax) > g_absVMax) g_absVMax = (int)fabs( (double) vMax);
303 g_absVMax = (int)(g_absVMax*1.25 + 1);
304 }
305
306 void Plot::PlotDemod(uint8_t *buffer, size_t len, QRect plotRect, QRect annotationRect, QPainter *painter, int graphNum, int plotOffset)
307 {
308 if (len == 0 || PlotGridX <= 0) return;
309 //clock_t begin = clock();
310 QPainterPath penPath;
311
312 int grid_delta_x = PlotGridX;
313 int first_delta_x = grid_delta_x; //(plotOffset > 0) ? PlotGridX : (PlotGridX +);
314 if (GraphStart > plotOffset) first_delta_x -= (GraphStart-plotOffset);
315 int DemodStart = GraphStart;
316 if (plotOffset > GraphStart) DemodStart = plotOffset;
317
318 int BitStart = 0;
319 // round down
320 if (DemodStart-plotOffset > 0) BitStart = (int)(((DemodStart-plotOffset)+(PlotGridX-1))/PlotGridX)-1;
321 first_delta_x += BitStart * PlotGridX;
322 if (BitStart > (int)len) return;
323 int delta_x = 0;
324 int v = 0;
325 //printf("first_delta_x %i, grid_delta_x %i, DemodStart %i, BitStart %i\n",first_delta_x,grid_delta_x,DemodStart, BitStart);
326
327 painter->setPen(getColor(graphNum));
328 char str[5];
329 int absVMax = (int)(100*1.05+1);
330 int x = xCoordOf(DemodStart, plotRect);
331 int y = yCoordOf((buffer[BitStart]*200-100)*-1,plotRect,absVMax);
332 penPath.moveTo(x, y);
333 delta_x = 0;
334 int clk = first_delta_x;
335 for(int i = BitStart; i < (int)len && xCoordOf(delta_x+DemodStart, plotRect) < plotRect.right(); i++) {
336 for (int ii = 0; ii < (clk) && i < (int)len && xCoordOf(DemodStart+delta_x+ii, plotRect) < plotRect.right() ; ii++ ) {
337 x = xCoordOf(DemodStart+delta_x+ii, plotRect);
338 v = buffer[i]*200-100;
339
340 y = yCoordOf( v, plotRect, absVMax);
341
342 penPath.lineTo(x, y);
343
344 if(GraphPixelsPerPoint > 10) {
345 QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3));
346 painter->fillRect(f, QColor(100, 255, 100));
347 }
348 if (ii == (int)clk/2) {
349 //print label
350 sprintf(str, "%u",buffer[i]);
351 painter->drawText(x-8, y + ((buffer[i] > 0) ? 18 : -6), str);
352 }
353 }
354 delta_x += clk;
355 clk = grid_delta_x;
356 }
357
358 //Graph annotations
359 painter->drawPath(penPath);
360 }
361
362 void Plot::PlotGraph(int *buffer, int len, QRect plotRect, QRect annotationRect, QPainter *painter, int graphNum)
363 {
364 if (len == 0) return;
365 //clock_t begin = clock();
366 QPainterPath penPath;
367 int vMin = INT_MAX, vMax = INT_MIN, vMean = 0, v = 0, i = 0;
368 int x = xCoordOf(GraphStart, plotRect);
369 int y = yCoordOf(buffer[GraphStart],plotRect,g_absVMax);
370 penPath.moveTo(x, y);
371 for(i = GraphStart; i < len && xCoordOf(i, plotRect) < plotRect.right(); i++) {
372
373 x = xCoordOf(i, plotRect);
374 v = buffer[i];
375
376 y = yCoordOf( v, plotRect, g_absVMax);
377
378 penPath.lineTo(x, y);
379
380 if(GraphPixelsPerPoint > 10) {
381 QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3));
382 painter->fillRect(f, QColor(100, 255, 100));
383 }
384 //catch stats
385 if(v < vMin) vMin = v;
386 if(v > vMax) vMax = v;
387 vMean += v;
388 }
389 vMean /= (i - GraphStart);
390
391 painter->setPen(getColor(graphNum));
392
393 //Draw y-axis
394 int xo = 5+(graphNum*40);
395 painter->drawLine(xo, plotRect.top(),xo, plotRect.bottom());
396
397 int vMarkers = (g_absVMax - (g_absVMax % 10)) / 5;
398 int minYDist = 40; //Minimum pixel-distance between markers
399
400 char yLbl[20];
401
402 int n = 0;
403 int lasty0 = 65535;
404
405 for(v = vMarkers; yCoordOf(v,plotRect,g_absVMax) > plotRect.top() && n < 20; v+= vMarkers ,n++)
406 {
407 int y0 = yCoordOf(v,plotRect,g_absVMax);
408 int y1 = yCoordOf(-v,plotRect,g_absVMax);
409
410 if(lasty0 - y0 < minYDist) continue;
411
412 painter->drawLine(xo-5,y0, xo+5, y0);
413
414 sprintf(yLbl, "%d", v);
415 painter->drawText(xo+8,y0+7,yLbl);
416
417 painter->drawLine(xo-5, y1, xo+5, y1);
418 sprintf(yLbl, "%d",-v);
419 painter->drawText(xo+8, y1+5 , yLbl);
420 lasty0 = y0;
421 }
422
423 //Graph annotations
424 painter->drawPath(penPath);
425 char str[200];
426 sprintf(str, "max=%d min=%d mean=%d n=%d/%d CursorAVal=[%d] CursorBVal=[%d]",
427 vMax, vMin, vMean, i, len, buffer[CursorAPos], buffer[CursorBPos]);
428 painter->drawText(20, annotationRect.bottom() - 23 - 20 * graphNum, str);
429
430 //clock_t end = clock();
431 //double elapsed_secs = double(end - begin) / CLOCKS_PER_SEC;
432 //printf("Plot time %f\n", elapsed_secs);
433 }
434
435 void Plot::plotGridLines(QPainter* painter,QRect r)
436 {
437 // set GridOffset
438 if (PlotGridX <= 0) return;
439 int offset = GridOffset;
440 if (GridLocked && PlotGridX) {
441 offset = GridOffset + PlotGridX - (GraphStart % PlotGridX);
442 } else if (!GridLocked && GraphStart > 0 && PlotGridX) {
443 offset = PlotGridX-((GraphStart - offset) % PlotGridX) + GraphStart - unlockStart;
444 }
445 offset %= PlotGridX;
446 if (offset < 0) offset += PlotGridX;
447
448 int i;
449 int grid_delta_x = (int) (PlotGridX * GraphPixelsPerPoint);
450 int grid_delta_y = PlotGridY;
451 if ((PlotGridX > 0) && ((PlotGridX * GraphPixelsPerPoint) > 1)) {
452 for(i = (offset * GraphPixelsPerPoint); i < r.right(); i += grid_delta_x) {
453 painter->drawLine(r.left()+i, r.top(), r.left()+i, r.bottom());
454 }
455 }
456 if (PlotGridY > 0) {
457 for(i = 0; yCoordOf(i,r,g_absVMax) > r.top(); i += grid_delta_y) {
458 painter->drawLine( r.left(), yCoordOf(i,r,g_absVMax), r.right(), yCoordOf(i,r,g_absVMax) );
459 painter->drawLine( r.left(), yCoordOf(i*-1,r,g_absVMax), r.right(), yCoordOf(i*-1,r,g_absVMax) );
460 }
461 }
462 }
463
464 #define HEIGHT_INFO 60
465 #define WIDTH_AXES 80
466
467 void Plot::paintEvent(QPaintEvent *event)
468 {
469
470 QPainter painter(this);
471 QBrush brush(QColor(100, 255, 100));
472 QPen pen(QColor(100, 255, 100));
473
474 painter.setFont(QFont("Courier New", 10));
475
476 if(GraphStart < 0) {
477 GraphStart = 0;
478 }
479
480 if (CursorAPos > GraphTraceLen)
481 CursorAPos= 0;
482 if(CursorBPos > GraphTraceLen)
483 CursorBPos= 0;
484 if(CursorCPos > GraphTraceLen)
485 CursorCPos= 0;
486 if(CursorDPos > GraphTraceLen)
487 CursorDPos= 0;
488
489 QRect plotRect(WIDTH_AXES, 0, width()-WIDTH_AXES, height()-HEIGHT_INFO);
490 QRect infoRect(0, height()-HEIGHT_INFO, width(), HEIGHT_INFO);
491
492 //Grey background
493 painter.fillRect(rect(), QColor(60, 60, 60));
494 //Black foreground
495 painter.fillRect(plotRect, QColor(0, 0, 0));
496
497 //init graph variables
498 setMaxAndStart(GraphBuffer,GraphTraceLen,plotRect);
499
500 // center line
501 int zeroHeight = plotRect.top() + (plotRect.bottom() - plotRect.top()) / 2;
502 painter.setPen(QColor(100, 100, 100));
503 painter.drawLine(plotRect.left(), zeroHeight, plotRect.right(), zeroHeight);
504 // plot X and Y grid lines
505 plotGridLines(&painter, plotRect);
506
507 //Start painting graph
508 PlotGraph(GraphBuffer, GraphTraceLen,plotRect,infoRect,&painter,0);
509 if (showDemod && DemodBufferLen > 8) {
510 PlotDemod(DemodBuffer, DemodBufferLen,plotRect,infoRect,&painter,2,g_DemodStartIdx);
511 }
512 if (g_useOverlays) {
513 //init graph variables
514 setMaxAndStart(s_Buff,GraphTraceLen,plotRect);
515 PlotGraph(s_Buff, GraphTraceLen,plotRect,infoRect,&painter,1);
516 }
517 // End graph drawing
518
519 //Draw the cursors
520 if(CursorAPos > GraphStart && xCoordOf(CursorAPos, plotRect) < plotRect.right())
521 {
522 painter.setPen(QColor(255, 255, 0));
523 painter.drawLine(xCoordOf(CursorAPos, plotRect),plotRect.top(),xCoordOf(CursorAPos, plotRect),plotRect.bottom());
524 }
525 if(CursorBPos > GraphStart && xCoordOf(CursorBPos, plotRect) < plotRect.right())
526 {
527 painter.setPen(QColor(255, 0, 255));
528 painter.drawLine(xCoordOf(CursorBPos, plotRect),plotRect.top(),xCoordOf(CursorBPos, plotRect),plotRect.bottom());
529 }
530 if(CursorCPos > GraphStart && xCoordOf(CursorCPos, plotRect) < plotRect.right())
531 {
532 painter.setPen(QColor(255, 153, 0)); //orange
533 painter.drawLine(xCoordOf(CursorCPos, plotRect),plotRect.top(),xCoordOf(CursorCPos, plotRect),plotRect.bottom());
534 }
535 if(CursorDPos > GraphStart && xCoordOf(CursorDPos, plotRect) < plotRect.right())
536 {
537 painter.setPen(QColor(0, 0, 205)); //light blue
538 painter.drawLine(xCoordOf(CursorDPos, plotRect),plotRect.top(),xCoordOf(CursorDPos, plotRect),plotRect.bottom());
539 }
540
541 //Draw annotations
542 char str[200];
543 sprintf(str, "@%d dt=%d [%2.2f] zoom=%2.2f CursorAPos=%d CursorBPos=%d GridX=%d GridY=%d (%s) GridXoffset=%d",
544 GraphStart, CursorBPos - CursorAPos, (CursorBPos - CursorAPos)/CursorScaleFactor,
545 GraphPixelsPerPoint,CursorAPos,CursorBPos,PlotGridXdefault,PlotGridYdefault,GridLocked?"Locked":"Unlocked",GridOffset);
546 painter.setPen(QColor(255, 255, 255));
547 painter.drawText(20, infoRect.bottom() - 3, str);
548
549 }
550
551 Plot::Plot(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1)
552 {
553 //Need to set this, otherwise we don't receive keypress events
554 setFocusPolicy( Qt::StrongFocus);
555 resize(600, 300);
556
557 QPalette palette(QColor(0,0,0,0));
558 palette.setColor(QPalette::WindowText, QColor(255,255,255));
559 palette.setColor(QPalette::Text, QColor(255,255,255));
560 palette.setColor(QPalette::Button, QColor(100, 100, 100));
561 setPalette(palette);
562 setAutoFillBackground(true);
563 CursorAPos = 0;
564 CursorBPos = 0;
565
566 setWindowTitle(tr("Sliders"));
567 }
568
569 void Plot::closeEvent(QCloseEvent *event)
570 {
571 event->ignore();
572 this->hide();
573 g_useOverlays = false;
574 }
575
576 void Plot::mouseMoveEvent(QMouseEvent *event)
577 {
578 int x = event->x();
579 x -= WIDTH_AXES;
580 x = (int)(x / GraphPixelsPerPoint);
581 x += GraphStart;
582 if((event->buttons() & Qt::LeftButton)) {
583 CursorAPos = x;
584 } else if (event->buttons() & Qt::RightButton) {
585 CursorBPos = x;
586 }
587
588
589 this->update();
590 }
591
592 void Plot::keyPressEvent(QKeyEvent *event)
593 {
594 int offset;
595
596 if(event->modifiers() & Qt::ShiftModifier) {
597 if (PlotGridX)
598 offset= PageWidth - (PageWidth % PlotGridX);
599 else
600 offset= PageWidth;
601 } else
602 if(event->modifiers() & Qt::ControlModifier)
603 offset= 1;
604 else
605 offset= (int)(20 / GraphPixelsPerPoint);
606
607 switch(event->key()) {
608 case Qt::Key_Down:
609 if(GraphPixelsPerPoint <= 50) {
610 GraphPixelsPerPoint *= 2;
611 }
612 break;
613
614 case Qt::Key_Up:
615 if(GraphPixelsPerPoint >= 0.02) {
616 GraphPixelsPerPoint /= 2;
617 }
618 break;
619
620 case Qt::Key_Right:
621 if(GraphPixelsPerPoint < 20) {
622 GraphStart += offset;
623 } else {
624 GraphStart++;
625 }
626 break;
627
628 case Qt::Key_Left:
629 if(GraphPixelsPerPoint < 20) {
630 GraphStart -= offset;
631 } else {
632 GraphStart--;
633 }
634 break;
635
636 case Qt::Key_G:
637 if(PlotGridX || PlotGridY) {
638 PlotGridX= 0;
639 PlotGridY= 0;
640 } else {
641 PlotGridX= PlotGridXdefault;
642 PlotGridY= PlotGridYdefault;
643 }
644 break;
645
646 case Qt::Key_H:
647 puts("Plot Window Keystrokes:\n");
648 puts(" Key Action\n");
649 puts(" DOWN Zoom in");
650 puts(" G Toggle grid display");
651 puts(" H Show help");
652 puts(" L Toggle lock grid relative to samples");
653 puts(" LEFT Move left");
654 puts(" <CTL>LEFT Move left 1 sample");
655 puts(" <SHIFT>LEFT Page left");
656 puts(" LEFT-MOUSE-CLICK Set yellow cursor");
657 puts(" Q Hide window");
658 puts(" RIGHT Move right");
659 puts(" <CTL>RIGHT Move right 1 sample");
660 puts(" <SHIFT>RIGHT Page right");
661 puts(" RIGHT-MOUSE-CLICK Set purple cursor");
662 puts(" UP Zoom out");
663 puts("");
664 puts("Use client window 'data help' for more plot commands\n");
665 break;
666
667 case Qt::Key_L:
668 GridLocked = !GridLocked;
669 if (GridLocked)
670 GridOffset += (GraphStart - unlockStart);
671 else
672 unlockStart = GraphStart;
673 break;
674
675 case Qt::Key_Q:
676 this->hide();
677 break;
678
679 default:
680 QWidget::keyPressEvent(event);
681 return;
682 break;
683 }
684
685 this->update();
686 }
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