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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
30 extern "C" {
31 #include "util_darwin.h"
32 }
33 //#include <ctime>
34
35 bool g_useOverlays = false;
36 int g_absVMax = 0;
37 int startMax; // Maximum offset in the graph (right side of graph)
38 int PageWidth; // How many samples are currently visible on this 'page' / graph
39 int unlockStart = 0;
40
41 void ProxGuiQT::ShowGraphWindow(void)
42 {
43 emit ShowGraphWindowSignal();
44 }
45
46 void ProxGuiQT::RepaintGraphWindow(void)
47 {
48 emit RepaintGraphWindowSignal();
49 }
50
51 void ProxGuiQT::HideGraphWindow(void)
52 {
53 emit HideGraphWindowSignal();
54 }
55
56 void ProxGuiQT::Exit(void)
57 {
58 emit ExitSignal();
59 }
60
61 void ProxGuiQT::_ShowGraphWindow(void)
62 {
63 if(!plotapp)
64 return;
65
66 if (!plotwidget)
67 {
68 #if defined(__MACH__) && defined(__APPLE__)
69 makeFocusable();
70 #endif
71 plotwidget = new ProxWidget();
72 }
73
74 plotwidget->show();
75 }
76
77 void ProxGuiQT::_RepaintGraphWindow(void)
78 {
79 if (!plotapp || !plotwidget)
80 return;
81
82 plotwidget->update();
83 }
84
85 void ProxGuiQT::_HideGraphWindow(void)
86 {
87 if (!plotapp || !plotwidget)
88 return;
89
90 plotwidget->hide();
91 }
92
93 void ProxGuiQT::_Exit(void) {
94 delete this;
95 }
96
97 void ProxGuiQT::_StartProxmarkThread(void) {
98 if (!proxmarkThread)
99 return;
100
101 // if thread finished delete self and delete application
102 QObject::connect(proxmarkThread, SIGNAL(finished()), proxmarkThread, SLOT(deleteLater()));
103 QObject::connect(proxmarkThread, SIGNAL(finished()), this, SLOT(_Exit()));
104 // start proxmark thread
105 proxmarkThread->start();
106 }
107
108 void ProxGuiQT::MainLoop()
109 {
110 plotapp = new QApplication(argc, argv);
111
112 connect(this, SIGNAL(ShowGraphWindowSignal()), this, SLOT(_ShowGraphWindow()));
113 connect(this, SIGNAL(RepaintGraphWindowSignal()), this, SLOT(_RepaintGraphWindow()));
114 connect(this, SIGNAL(HideGraphWindowSignal()), this, SLOT(_HideGraphWindow()));
115 connect(this, SIGNAL(ExitSignal()), this, SLOT(_Exit()));
116
117 //start proxmark thread after starting event loop
118 QTimer::singleShot(200, this, SLOT(_StartProxmarkThread()));
119
120 #if defined(__MACH__) && defined(__APPLE__)
121 //Prevent the terminal from loosing focus during launch by making the client unfocusable
122 makeUnfocusable();
123 #endif
124
125 plotapp->exec();
126 }
127
128 ProxGuiQT::ProxGuiQT(int argc, char **argv, WorkerThread *wthread) : plotapp(NULL), plotwidget(NULL),
129 argc(argc), argv(argv), proxmarkThread(wthread)
130 {
131 }
132
133 ProxGuiQT::~ProxGuiQT(void)
134 {
135 //if (plotwidget) {
136 //plotwidget->destroy(true,true);
137 // delete plotwidget;
138 // plotwidget = NULL;
139 //}
140 if (plotapp) {
141 plotapp->quit();
142 // delete plotapp;
143 plotapp = NULL;
144 }
145 }
146
147 //--------------------
148 void ProxWidget::applyOperation()
149 {
150 //printf("ApplyOperation()");
151 save_restoreGB(GRAPH_SAVE);
152 memcpy(GraphBuffer, s_Buff, sizeof(int) * GraphTraceLen);
153 RepaintGraphWindow();
154 }
155 void ProxWidget::stickOperation()
156 {
157 save_restoreGB(GRAPH_RESTORE);
158 //printf("stickOperation()");
159 }
160 void ProxWidget::vchange_autocorr(int v)
161 {
162 int ans;
163 ans = AutoCorrelate(GraphBuffer, s_Buff, GraphTraceLen, v, true, false);
164 if (g_debugMode) printf("vchange_autocorr(w:%d): %d\n", v, ans);
165 g_useOverlays = true;
166 RepaintGraphWindow();
167 }
168 void ProxWidget::vchange_askedge(int v)
169 {
170 int ans;
171 //extern int AskEdgeDetect(const int *in, int *out, int len, int threshold);
172 ans = AskEdgeDetect(GraphBuffer, s_Buff, GraphTraceLen, v);
173 if (g_debugMode) printf("vchange_askedge(w:%d)%d\n", v, ans);
174 g_useOverlays = true;
175 RepaintGraphWindow();
176 }
177 void ProxWidget::vchange_dthr_up(int v)
178 {
179 int down = opsController->horizontalSlider_dirthr_down->value();
180 directionalThreshold(GraphBuffer, s_Buff, GraphTraceLen, v, down);
181 //printf("vchange_dthr_up(%d)", v);
182 g_useOverlays = true;
183 RepaintGraphWindow();
184 }
185 void ProxWidget::vchange_dthr_down(int v)
186 {
187 //printf("vchange_dthr_down(%d)", v);
188 int up = opsController->horizontalSlider_dirthr_up->value();
189 directionalThreshold(GraphBuffer,s_Buff, GraphTraceLen, v, up);
190 g_useOverlays = true;
191 RepaintGraphWindow();
192 }
193 ProxWidget::ProxWidget(QWidget *parent, ProxGuiQT *master) : QWidget(parent)
194 {
195 this->master = master;
196 resize(800,500);
197
198 // Setup the controller widget
199 controlWidget = new QWidget();
200 opsController = new Ui::Form();
201 opsController->setupUi(controlWidget);
202 //Due to quirks in QT Designer, we need to fiddle a bit
203 opsController->horizontalSlider_dirthr_down->setMinimum(-128);
204 opsController->horizontalSlider_dirthr_down->setMaximum(0);
205 opsController->horizontalSlider_dirthr_down->setValue(-20);
206 opsController->horizontalSlider_dirthr_up->setMinimum(-40);
207 opsController->horizontalSlider_dirthr_up->setMaximum(128);
208 opsController->horizontalSlider_dirthr_up->setValue(20);
209 opsController->horizontalSlider_askedge->setValue(25);
210 opsController->horizontalSlider_window->setValue(4000);
211
212
213 QObject::connect(opsController->pushButton_apply, SIGNAL(clicked()), this, SLOT(applyOperation()));
214 QObject::connect(opsController->pushButton_sticky, SIGNAL(clicked()), this, SLOT(stickOperation()));
215 QObject::connect(opsController->horizontalSlider_window, SIGNAL(valueChanged(int)), this, SLOT(vchange_autocorr(int)));
216 QObject::connect(opsController->horizontalSlider_dirthr_up, SIGNAL(valueChanged(int)), this, SLOT(vchange_dthr_up(int)));
217 QObject::connect(opsController->horizontalSlider_dirthr_down, SIGNAL(valueChanged(int)), this, SLOT(vchange_dthr_down(int)));
218 QObject::connect(opsController->horizontalSlider_askedge, SIGNAL(valueChanged(int)), this, SLOT(vchange_askedge(int)));
219
220 // Set up the plot widget, which does the actual plotting
221 plot = new Plot(this);
222 QVBoxLayout *layout = new QVBoxLayout;
223 layout->addWidget(plot);
224 setLayout(layout);
225 show(); // places the window on the screen.
226
227 // Move controller widget below plot
228 controlWidget->move(x(),y()+frameSize().height());
229 controlWidget->resize(size().width(), controlWidget->size().height());
230 controlWidget->show();
231 }
232
233 // not 100% sure what i need in this block
234 // feel free to fix - marshmellow...
235 ProxWidget::~ProxWidget(void)
236 {
237 if (controlWidget) {
238 controlWidget->close();
239 delete controlWidget;
240 controlWidget = NULL;
241 }
242
243 if (opsController) {
244 delete opsController;
245 opsController = NULL;
246 }
247
248 if (plot) {
249 plot->close();
250 delete plot;
251 plot = NULL;
252 }
253 }
254 void ProxWidget::closeEvent(QCloseEvent *event)
255 {
256 event->ignore();
257 this->hide();
258 g_useOverlays = false;
259 }
260 void ProxWidget::hideEvent(QHideEvent *event) {
261 controlWidget->hide();
262 plot->hide();
263 }
264 void ProxWidget::showEvent(QShowEvent *event) {
265 controlWidget->show();
266 plot->show();
267 }
268
269 //----------- Plotting
270
271 int Plot::xCoordOf(int i, QRect r )
272 {
273 return r.left() + (int)((i - GraphStart)*GraphPixelsPerPoint);
274 }
275
276 int Plot::yCoordOf(int v, QRect r, int maxVal)
277 {
278 int z = (r.bottom() - r.top())/2;
279 if ( maxVal == 0 ) maxVal++;
280 return -(z * v) / maxVal + z;
281 }
282
283 int Plot::valueOf_yCoord(int y, QRect r, int maxVal)
284 {
285 int z = (r.bottom() - r.top())/2;
286 return (y-z) * maxVal / z;
287 }
288 static const QColor GREEN = QColor(100,255,100);
289 static const QColor RED = QColor(255,100,100);
290 static const QColor BLUE = QColor(100,100,255);
291 static const QColor GRAY = QColor(240,240,240);
292
293 QColor Plot::getColor(int graphNum)
294 {
295 switch (graphNum) {
296 case 0: return GREEN; //Green
297 case 1: return RED; //Red
298 case 2: return BLUE; //Blue
299 default: return GRAY; //Gray
300 }
301 }
302
303 void Plot::setMaxAndStart(int *buffer, int len, QRect plotRect)
304 {
305 if (len == 0) return;
306 startMax = (len - (int)((plotRect.right() - plotRect.left() - 40) / GraphPixelsPerPoint));
307 if(startMax < 0) {
308 startMax = 0;
309 }
310 if(GraphStart > startMax) {
311 GraphStart = startMax;
312 }
313 if (GraphStart > len) return;
314 int vMin = INT_MAX, vMax = INT_MIN, v = 0;
315 int sample_index = GraphStart ;
316 for( ; sample_index < len && xCoordOf(sample_index,plotRect) < plotRect.right() ; sample_index++) {
317
318 v = buffer[sample_index];
319 if(v < vMin) vMin = v;
320 if(v > vMax) vMax = v;
321 }
322
323 g_absVMax = 0;
324 if(fabs( (double) vMin) > g_absVMax) g_absVMax = (int)fabs( (double) vMin);
325 if(fabs( (double) vMax) > g_absVMax) g_absVMax = (int)fabs( (double) vMax);
326 g_absVMax = (int)(g_absVMax*1.25 + 1);
327 }
328
329 void Plot::PlotDemod(uint8_t *buffer, size_t len, QRect plotRect, QRect annotationRect, QPainter *painter, int graphNum, int plotOffset)
330 {
331 if (len == 0 || PlotGridX <= 0) return;
332 //clock_t begin = clock();
333 QPainterPath penPath;
334
335 int grid_delta_x = PlotGridX;
336 int first_delta_x = grid_delta_x; //(plotOffset > 0) ? PlotGridX : (PlotGridX +);
337 if (GraphStart > plotOffset) first_delta_x -= (GraphStart-plotOffset);
338 int DemodStart = GraphStart;
339 if (plotOffset > GraphStart) DemodStart = plotOffset;
340
341 int BitStart = 0;
342 // round down
343 if (DemodStart-plotOffset > 0) BitStart = (int)(((DemodStart-plotOffset)+(PlotGridX-1))/PlotGridX)-1;
344 first_delta_x += BitStart * PlotGridX;
345 if (BitStart > (int)len) return;
346 int delta_x = 0;
347 int v = 0;
348 //printf("first_delta_x %i, grid_delta_x %i, DemodStart %i, BitStart %i\n",first_delta_x,grid_delta_x,DemodStart, BitStart);
349
350 painter->setPen(getColor(graphNum));
351 char str[5];
352 int absVMax = (int)(100*1.05+1);
353 int x = xCoordOf(DemodStart, plotRect);
354 int y = yCoordOf((buffer[BitStart]*200-100)*-1,plotRect,absVMax);
355 penPath.moveTo(x, y);
356 delta_x = 0;
357 int clk = first_delta_x;
358 for(int i = BitStart; i < (int)len && xCoordOf(delta_x+DemodStart, plotRect) < plotRect.right(); i++) {
359 for (int ii = 0; ii < (clk) && i < (int)len && xCoordOf(DemodStart+delta_x+ii, plotRect) < plotRect.right() ; ii++ ) {
360 x = xCoordOf(DemodStart+delta_x+ii, plotRect);
361 v = buffer[i]*200-100;
362
363 y = yCoordOf( v, plotRect, absVMax);
364
365 penPath.lineTo(x, y);
366
367 if(GraphPixelsPerPoint > 10) {
368 QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3));
369 painter->fillRect(f, QColor(100, 255, 100));
370 }
371 if (ii == (int)clk/2) {
372 //print label
373 sprintf(str, "%u",buffer[i]);
374 painter->drawText(x-8, y + ((buffer[i] > 0) ? 18 : -6), str);
375 }
376 }
377 delta_x += clk;
378 clk = grid_delta_x;
379 }
380
381 //Graph annotations
382 painter->drawPath(penPath);
383 }
384
385 void Plot::PlotGraph(int *buffer, int len, QRect plotRect, QRect annotationRect, QPainter *painter, int graphNum)
386 {
387 if (len == 0) return;
388 //clock_t begin = clock();
389 QPainterPath penPath;
390 int vMin = INT_MAX, vMax = INT_MIN, vMean = 0, v = 0, i = 0;
391 int x = xCoordOf(GraphStart, plotRect);
392 int y = yCoordOf(buffer[GraphStart],plotRect,g_absVMax);
393 penPath.moveTo(x, y);
394 for(i = GraphStart; i < len && xCoordOf(i, plotRect) < plotRect.right(); i++) {
395
396 x = xCoordOf(i, plotRect);
397 v = buffer[i];
398
399 y = yCoordOf( v, plotRect, g_absVMax);
400
401 penPath.lineTo(x, y);
402
403 if(GraphPixelsPerPoint > 10) {
404 QRect f(QPoint(x - 3, y - 3),QPoint(x + 3, y + 3));
405 painter->fillRect(f, QColor(100, 255, 100));
406 }
407 //catch stats
408 if(v < vMin) vMin = v;
409 if(v > vMax) vMax = v;
410 vMean += v;
411 }
412 vMean /= (i - GraphStart);
413
414 painter->setPen(getColor(graphNum));
415
416 //Draw y-axis
417 int xo = 5+(graphNum*40);
418 painter->drawLine(xo, plotRect.top(),xo, plotRect.bottom());
419
420 int vMarkers = (g_absVMax - (g_absVMax % 10)) / 5;
421 int minYDist = 40; //Minimum pixel-distance between markers
422
423 char yLbl[20];
424
425 int n = 0;
426 int lasty0 = 65535;
427
428 for(v = vMarkers; yCoordOf(v,plotRect,g_absVMax) > plotRect.top() && n < 20; v+= vMarkers ,n++)
429 {
430 int y0 = yCoordOf(v,plotRect,g_absVMax);
431 int y1 = yCoordOf(-v,plotRect,g_absVMax);
432
433 if(lasty0 - y0 < minYDist) continue;
434
435 painter->drawLine(xo-5,y0, xo+5, y0);
436
437 sprintf(yLbl, "%d", v);
438 painter->drawText(xo+8,y0+7,yLbl);
439
440 painter->drawLine(xo-5, y1, xo+5, y1);
441 sprintf(yLbl, "%d",-v);
442 painter->drawText(xo+8, y1+5 , yLbl);
443 lasty0 = y0;
444 }
445
446 //Graph annotations
447 painter->drawPath(penPath);
448 char str[200];
449 sprintf(str, "max=%d min=%d mean=%d n=%d/%d CursorAVal=[%d] CursorBVal=[%d]",
450 vMax, vMin, vMean, i, len, buffer[CursorAPos], buffer[CursorBPos]);
451 painter->drawText(20, annotationRect.bottom() - 23 - 20 * graphNum, str);
452
453 //clock_t end = clock();
454 //double elapsed_secs = double(end - begin) / CLOCKS_PER_SEC;
455 //printf("Plot time %f\n", elapsed_secs);
456 }
457
458 void Plot::plotGridLines(QPainter* painter,QRect r)
459 {
460 // set GridOffset
461 if (PlotGridX <= 0) return;
462 int offset = GridOffset;
463 if (GridLocked && PlotGridX) {
464 offset = GridOffset + PlotGridX - (GraphStart % PlotGridX);
465 } else if (!GridLocked && GraphStart > 0 && PlotGridX) {
466 offset = PlotGridX-((GraphStart - offset) % PlotGridX) + GraphStart - unlockStart;
467 }
468 offset %= PlotGridX;
469 if (offset < 0) offset += PlotGridX;
470
471 int i;
472 int grid_delta_x = (int) (PlotGridX * GraphPixelsPerPoint);
473 int grid_delta_y = PlotGridY;
474 if ((PlotGridX > 0) && ((PlotGridX * GraphPixelsPerPoint) > 1)) {
475 for(i = (offset * GraphPixelsPerPoint); i < r.right(); i += grid_delta_x) {
476 painter->drawLine(r.left()+i, r.top(), r.left()+i, r.bottom());
477 }
478 }
479 if (PlotGridY > 0) {
480 for(i = 0; yCoordOf(i,r,g_absVMax) > r.top(); i += grid_delta_y) {
481 painter->drawLine( r.left(), yCoordOf(i,r,g_absVMax), r.right(), yCoordOf(i,r,g_absVMax) );
482 painter->drawLine( r.left(), yCoordOf(i*-1,r,g_absVMax), r.right(), yCoordOf(i*-1,r,g_absVMax) );
483 }
484 }
485 }
486
487 #define HEIGHT_INFO 60
488 #define WIDTH_AXES 80
489
490 void Plot::paintEvent(QPaintEvent *event)
491 {
492
493 QPainter painter(this);
494 QBrush brush(QColor(100, 255, 100));
495 QPen pen(QColor(100, 255, 100));
496
497 painter.setFont(QFont("Courier New", 10));
498
499 if(GraphStart < 0) {
500 GraphStart = 0;
501 }
502
503 if (CursorAPos > GraphTraceLen)
504 CursorAPos= 0;
505 if(CursorBPos > GraphTraceLen)
506 CursorBPos= 0;
507 if(CursorCPos > GraphTraceLen)
508 CursorCPos= 0;
509 if(CursorDPos > GraphTraceLen)
510 CursorDPos= 0;
511
512 QRect plotRect(WIDTH_AXES, 0, width() - WIDTH_AXES, height() - HEIGHT_INFO);
513 QRect infoRect(0, height() - HEIGHT_INFO, width(), HEIGHT_INFO);
514 PageWidth = plotRect.width() / GraphPixelsPerPoint;
515
516 //Grey background
517 painter.fillRect(rect(), QColor(60, 60, 60));
518 //Black foreground
519 painter.fillRect(plotRect, QColor(0, 0, 0));
520
521 //init graph variables
522 setMaxAndStart(GraphBuffer,GraphTraceLen,plotRect);
523
524 // center line
525 int zeroHeight = plotRect.top() + (plotRect.bottom() - plotRect.top()) / 2;
526 painter.setPen(QColor(100, 100, 100));
527 painter.drawLine(plotRect.left(), zeroHeight, plotRect.right(), zeroHeight);
528 // plot X and Y grid lines
529 plotGridLines(&painter, plotRect);
530
531 //Start painting graph
532 PlotGraph(GraphBuffer, GraphTraceLen,plotRect,infoRect,&painter,0);
533 if (showDemod && DemodBufferLen > 8) {
534 PlotDemod(DemodBuffer, DemodBufferLen,plotRect,infoRect,&painter,2,g_DemodStartIdx);
535 }
536 if (g_useOverlays) {
537 //init graph variables
538 setMaxAndStart(s_Buff,GraphTraceLen,plotRect);
539 PlotGraph(s_Buff, GraphTraceLen,plotRect,infoRect,&painter,1);
540 }
541 // End graph drawing
542
543 //Draw the cursors
544 if(CursorAPos > GraphStart && xCoordOf(CursorAPos, plotRect) < plotRect.right())
545 {
546 painter.setPen(QColor(255, 255, 0));
547 painter.drawLine(xCoordOf(CursorAPos, plotRect),plotRect.top(),xCoordOf(CursorAPos, plotRect),plotRect.bottom());
548 }
549 if(CursorBPos > GraphStart && xCoordOf(CursorBPos, plotRect) < plotRect.right())
550 {
551 painter.setPen(QColor(255, 0, 255));
552 painter.drawLine(xCoordOf(CursorBPos, plotRect),plotRect.top(),xCoordOf(CursorBPos, plotRect),plotRect.bottom());
553 }
554 if(CursorCPos > GraphStart && xCoordOf(CursorCPos, plotRect) < plotRect.right())
555 {
556 painter.setPen(QColor(255, 153, 0)); //orange
557 painter.drawLine(xCoordOf(CursorCPos, plotRect),plotRect.top(),xCoordOf(CursorCPos, plotRect),plotRect.bottom());
558 }
559 if(CursorDPos > GraphStart && xCoordOf(CursorDPos, plotRect) < plotRect.right())
560 {
561 painter.setPen(QColor(0, 0, 205)); //light blue
562 painter.drawLine(xCoordOf(CursorDPos, plotRect),plotRect.top(),xCoordOf(CursorDPos, plotRect),plotRect.bottom());
563 }
564
565 //Draw annotations
566 char str[200];
567 sprintf(str, "@%d dt=%d [%2.2f] zoom=%2.2f CursorAPos=%d CursorBPos=%d GridX=%d GridY=%d (%s) GridXoffset=%d",
568 GraphStart, CursorBPos - CursorAPos, (CursorBPos - CursorAPos)/CursorScaleFactor,
569 GraphPixelsPerPoint,CursorAPos,CursorBPos,PlotGridXdefault,PlotGridYdefault,GridLocked?"Locked":"Unlocked",GridOffset);
570 painter.setPen(QColor(255, 255, 255));
571 painter.drawText(20, infoRect.bottom() - 3, str);
572
573 }
574
575 Plot::Plot(QWidget *parent) : QWidget(parent), GraphStart(0), GraphPixelsPerPoint(1)
576 {
577 //Need to set this, otherwise we don't receive keypress events
578 setFocusPolicy( Qt::StrongFocus);
579 resize(600, 300);
580
581 QPalette palette(QColor(0,0,0,0));
582 palette.setColor(QPalette::WindowText, QColor(255,255,255));
583 palette.setColor(QPalette::Text, QColor(255,255,255));
584 palette.setColor(QPalette::Button, QColor(100, 100, 100));
585 setPalette(palette);
586 setAutoFillBackground(true);
587 CursorAPos = 0;
588 CursorBPos = 0;
589
590 setWindowTitle(tr("Sliders"));
591
592 master = parent;
593 }
594
595 void Plot::closeEvent(QCloseEvent *event)
596 {
597 event->ignore();
598 this->hide();
599 g_useOverlays = false;
600 }
601
602 void Plot::mouseMoveEvent(QMouseEvent *event)
603 {
604 int x = event->x();
605 x -= WIDTH_AXES;
606 x = (int)(x / GraphPixelsPerPoint);
607 x += GraphStart;
608 if((event->buttons() & Qt::LeftButton)) {
609 CursorAPos = x;
610 } else if (event->buttons() & Qt::RightButton) {
611 CursorBPos = x;
612 }
613
614
615 this->update();
616 }
617
618 void Plot::keyPressEvent(QKeyEvent *event)
619 {
620 int offset; // Left/right movement offset (in sample size)
621
622 if(event->modifiers() & Qt::ShiftModifier) {
623 if (PlotGridX)
624 offset= PageWidth - (PageWidth % PlotGridX);
625 else
626 offset= PageWidth;
627 } else
628 if(event->modifiers() & Qt::ControlModifier)
629 offset= 1;
630 else
631 offset= (int)(20 / GraphPixelsPerPoint);
632
633 switch(event->key()) {
634 case Qt::Key_Down:
635 if(GraphPixelsPerPoint <= 50) {
636 GraphPixelsPerPoint *= 2;
637 }
638 break;
639
640 case Qt::Key_Up:
641 if(GraphPixelsPerPoint >= 0.02) {
642 GraphPixelsPerPoint /= 2;
643 }
644 break;
645
646 case Qt::Key_Right:
647 if(GraphPixelsPerPoint < 20) {
648 GraphStart += offset;
649 } else {
650 GraphStart++;
651 }
652 break;
653
654 case Qt::Key_Left:
655 if(GraphPixelsPerPoint < 20) {
656 GraphStart -= offset;
657 } else {
658 GraphStart--;
659 }
660 break;
661
662 case Qt::Key_G:
663 if(PlotGridX || PlotGridY) {
664 PlotGridX= 0;
665 PlotGridY= 0;
666 } else {
667 PlotGridX= PlotGridXdefault;
668 PlotGridY= PlotGridYdefault;
669 }
670 break;
671
672 case Qt::Key_H:
673 puts("Plot Window Keystrokes:\n");
674 puts(" Key Action\n");
675 puts(" UP Zoom out");
676 puts(" DOWN Zoom in");
677 puts(" G Toggle grid display");
678 puts(" H Show help");
679 puts(" L Toggle lock grid relative to samples");
680 puts(" Q Hide window");
681 puts(" HOME Move to the start of the graph");
682 puts(" END Move to the end of the graph");
683 puts(" LEFT Move left");
684 puts(" <CTL>LEFT Move left 1 sample");
685 puts(" <SHIFT>LEFT Page left");
686 puts(" LEFT-MOUSE-CLICK Set yellow cursor");
687 puts(" RIGHT Move right");
688 puts(" <CTL>RIGHT Move right 1 sample");
689 puts(" <SHIFT>RIGHT Page right");
690 puts(" RIGHT-MOUSE-CLICK Set purple cursor");
691 puts("");
692 puts("Use client window 'data help' for more plot commands\n");
693 break;
694
695 case Qt::Key_L:
696 GridLocked = !GridLocked;
697 if (GridLocked)
698 GridOffset += (GraphStart - unlockStart);
699 else
700 unlockStart = GraphStart;
701 break;
702
703 case Qt::Key_Q:
704 master->hide();
705 break;
706
707 case Qt::Key_Home:
708 GraphStart = 0;
709 break;
710
711 case Qt::Key_End:
712 GraphStart = startMax;
713 break;
714
715 default:
716 QWidget::keyPressEvent(event);
717 return;
718 break;
719 }
720
721 this->update();
722 }
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