libpappsomspp
Library for mass spectrometry
baseplotwidget.cpp
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1/* This code comes right from the msXpertSuite software project.
2 *
3 * msXpertSuite - mass spectrometry software suite
4 * -----------------------------------------------
5 * Copyright(C) 2009,...,2018 Filippo Rusconi
6 *
7 * http://www.msxpertsuite.org
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 *
22 * END software license
23 */
24
25
26/////////////////////// StdLib includes
27#include <vector>
28
29
30/////////////////////// Qt includes
31#include <QVector>
32
33
34/////////////////////// Local includes
35#include "../../types.h"
36#include "baseplotwidget.h"
37#include "../../pappsoexception.h"
38#include "../../exception/exceptionnotpossible.h"
39
40
42 qRegisterMetaType<pappso::BasePlotContext>("pappso::BasePlotContext");
44 qRegisterMetaType<pappso::BasePlotContext *>("pappso::BasePlotContext *");
45
46
47namespace pappso
48{
49BasePlotWidget::BasePlotWidget(QWidget *parent) : QCustomPlot(parent)
50{
51 if(parent == nullptr)
52 qFatal("Programming error.");
53
54 // Default settings for the pen used to graph the data.
55 m_pen.setStyle(Qt::SolidLine);
56 m_pen.setBrush(Qt::black);
57 m_pen.setWidth(1);
58
59 // qDebug() << "Created new BasePlotWidget with" << layerCount()
60 //<< "layers before setting up widget.";
61 // qDebug().noquote() << "All layer names:\n" << allLayerNamesToString();
62
63 // As of today 20210313, the QCustomPlot is created with the following 6
64 // layers:
65 //
66 // All layers' name:
67 //
68 // Layer index 0 name: background
69 // Layer index 1 name: grid
70 // Layer index 2 name: main
71 // Layer index 3 name: axes
72 // Layer index 4 name: legend
73 // Layer index 5 name: overlay
74
75 if(!setupWidget())
76 qFatal("Programming error.");
77
78 // Do not call createAllAncillaryItems() in this base class because all the
79 // items will have been created *before* the addition of plots and then the
80 // rendering order will hide them to the viewer, since the rendering order is
81 // according to the order in which the items have been created.
82 //
83 // The fact that the ancillary items are created before trace plots is not a
84 // problem because the trace plots are sparse and do not effectively hide the
85 // data.
86 //
87 // But, in the color map plot widgets, we cannot afford to create the
88 // ancillary items *before* the plot itself because then, the rendering of the
89 // plot (created after) would screen off the ancillary items (created before).
90 //
91 // So, the createAllAncillaryItems() function needs to be called in the
92 // derived classes at the most appropriate moment in the setting up of the
93 // widget.
94 //
95 // All this is only a workaround of a bug in QCustomPlot. See
96 // https://www.qcustomplot.com/index.php/support/forum/2283.
97 //
98 // I initially wanted to have a plots layer on top of the default background
99 // layer and a items layer on top of it. But that setting prevented the
100 // selection of graphs.
101
102 // qDebug() << "Created new BasePlotWidget with" << layerCount()
103 //<< "layers after setting up widget.";
104 // qDebug().noquote() << "All layer names:\n" << allLayerNamesToString();
105
106 show();
107}
108
109
111 const QString &x_axis_label,
112 const QString &y_axis_label)
113 : QCustomPlot(parent), m_axisLabelX(x_axis_label), m_axisLabelY(y_axis_label)
114{
115 // qDebug();
116
117 if(parent == nullptr)
118 qFatal("Programming error.");
119
120 // Default settings for the pen used to graph the data.
121 m_pen.setStyle(Qt::SolidLine);
122 m_pen.setBrush(Qt::black);
123 m_pen.setWidth(1);
124
125 xAxis->setLabel(x_axis_label);
126 yAxis->setLabel(y_axis_label);
127
128 // qDebug() << "Created new BasePlotWidget with" << layerCount()
129 //<< "layers before setting up widget.";
130 // qDebug().noquote() << "All layer names:\n" << allLayerNamesToString();
131
132 // As of today 20210313, the QCustomPlot is created with the following 6
133 // layers:
134 //
135 // All layers' name:
136 //
137 // Layer index 0 name: background
138 // Layer index 1 name: grid
139 // Layer index 2 name: main
140 // Layer index 3 name: axes
141 // Layer index 4 name: legend
142 // Layer index 5 name: overlay
143
144 if(!setupWidget())
145 qFatal("Programming error.");
146
147 // qDebug() << "Created new BasePlotWidget with" << layerCount()
148 //<< "layers after setting up widget.";
149 // qDebug().noquote() << "All layer names:\n" << allLayerNamesToString();
150
151 show();
152}
153
154
155//! Destruct \c this BasePlotWidget instance.
156/*!
157
158 The destruction involves clearing the history, deleting all the axis range
159 history items for x and y axes.
160
161*/
163{
164 // qDebug() << "In the destructor of plot widget:" << this;
165
166 m_xAxisRangeHistory.clear();
167 m_yAxisRangeHistory.clear();
168
169 // Note that the QCustomPlot xxxItem objects are allocated with (this) which
170 // means their destruction is automatically handled upon *this' destruction.
171}
172
173
174QString
176{
177
178 QString text;
179
180 for(int iter = 0; iter < layerCount(); ++iter)
181 {
182 text +=
183 QString("Layer index %1: %2\n").arg(iter).arg(layer(iter)->name());
184 }
185
186 return text;
187}
188
189
190QString
191BasePlotWidget::layerableLayerName(QCPLayerable *layerable_p) const
192{
193 if(layerable_p == nullptr)
194 qFatal("Programming error.");
195
196 QCPLayer *layer_p = layerable_p->layer();
197
198 return layer_p->name();
199}
200
201
202int
203BasePlotWidget::layerableLayerIndex(QCPLayerable *layerable_p) const
204{
205 if(layerable_p == nullptr)
206 qFatal("Programming error.");
207
208 QCPLayer *layer_p = layerable_p->layer();
209
210 for(int iter = 0; iter < layerCount(); ++iter)
211 {
212 if(layer(iter) == layer_p)
213 return iter;
214 }
215
216 return -1;
217}
218
219
220void
222{
223 // Make a copy of the pen to just change its color and set that color to
224 // the tracer line.
225 QPen pen = m_pen;
226
227 // Create the lines that will act as tracers for position and selection of
228 // regions.
229 //
230 // We have the cross hair that serves as the cursor. That crosshair cursor is
231 // made of a vertical line (green, because when click-dragging the mouse it
232 // becomes the tracer that is being anchored at the region start. The second
233 // line i horizontal and is always black.
234
235 pen.setColor(QColor("steelblue"));
236
237 // The set of tracers (horizontal and vertical) that track the position of the
238 // mouse cursor.
239
240 mp_vPosTracerItem = new QCPItemLine(this);
241 mp_vPosTracerItem->setLayer("plotsLayer");
242 mp_vPosTracerItem->setPen(pen);
243 mp_vPosTracerItem->start->setType(QCPItemPosition::ptPlotCoords);
244 mp_vPosTracerItem->end->setType(QCPItemPosition::ptPlotCoords);
245 mp_vPosTracerItem->start->setCoords(0, 0);
246 mp_vPosTracerItem->end->setCoords(0, 0);
247
248 mp_hPosTracerItem = new QCPItemLine(this);
249 mp_hPosTracerItem->setLayer("plotsLayer");
250 mp_hPosTracerItem->setPen(pen);
251 mp_hPosTracerItem->start->setType(QCPItemPosition::ptPlotCoords);
252 mp_hPosTracerItem->end->setType(QCPItemPosition::ptPlotCoords);
253 mp_hPosTracerItem->start->setCoords(0, 0);
254 mp_hPosTracerItem->end->setCoords(0, 0);
255
256 // The set of tracers (horizontal only) that track the region
257 // spanning/selection regions.
258 //
259 // The start vertical tracer is colored in greeen.
260 pen.setColor(QColor("green"));
261
262 mp_vStartTracerItem = new QCPItemLine(this);
263 mp_vStartTracerItem->setLayer("plotsLayer");
264 mp_vStartTracerItem->setPen(pen);
265 mp_vStartTracerItem->start->setType(QCPItemPosition::ptPlotCoords);
266 mp_vStartTracerItem->end->setType(QCPItemPosition::ptPlotCoords);
267 mp_vStartTracerItem->start->setCoords(0, 0);
268 mp_vStartTracerItem->end->setCoords(0, 0);
269
270 // The end vertical tracer is colored in red.
271 pen.setColor(QColor("red"));
272
273 mp_vEndTracerItem = new QCPItemLine(this);
274 mp_vEndTracerItem->setLayer("plotsLayer");
275 mp_vEndTracerItem->setPen(pen);
276 mp_vEndTracerItem->start->setType(QCPItemPosition::ptPlotCoords);
277 mp_vEndTracerItem->end->setType(QCPItemPosition::ptPlotCoords);
278 mp_vEndTracerItem->start->setCoords(0, 0);
279 mp_vEndTracerItem->end->setCoords(0, 0);
280
281 // When the user click-drags the mouse, the X distance between the drag start
282 // point and the drag end point (current point) is the xDelta.
283 mp_xDeltaTextItem = new QCPItemText(this);
284 mp_xDeltaTextItem->setLayer("plotsLayer");
285 mp_xDeltaTextItem->setColor(QColor("steelblue"));
286 mp_xDeltaTextItem->setPositionAlignment(Qt::AlignBottom | Qt::AlignCenter);
287 mp_xDeltaTextItem->position->setType(QCPItemPosition::ptPlotCoords);
288 mp_xDeltaTextItem->setVisible(false);
289
290 // Same for the y delta
291 mp_yDeltaTextItem = new QCPItemText(this);
292 mp_yDeltaTextItem->setLayer("plotsLayer");
293 mp_yDeltaTextItem->setColor(QColor("steelblue"));
294 mp_yDeltaTextItem->setPositionAlignment(Qt::AlignBottom | Qt::AlignCenter);
295 mp_yDeltaTextItem->position->setType(QCPItemPosition::ptPlotCoords);
296 mp_yDeltaTextItem->setVisible(false);
297
298 // Make sure we prepare the four lines that will be needed to
299 // draw the selection rectangle.
300 pen = m_pen;
301
302 pen.setColor("steelblue");
303
304 mp_selectionRectangeLine1 = new QCPItemLine(this);
305 mp_selectionRectangeLine1->setLayer("plotsLayer");
306 mp_selectionRectangeLine1->setPen(pen);
307 mp_selectionRectangeLine1->start->setType(QCPItemPosition::ptPlotCoords);
308 mp_selectionRectangeLine1->end->setType(QCPItemPosition::ptPlotCoords);
309 mp_selectionRectangeLine1->start->setCoords(0, 0);
310 mp_selectionRectangeLine1->end->setCoords(0, 0);
311 mp_selectionRectangeLine1->setVisible(false);
312
313 mp_selectionRectangeLine2 = new QCPItemLine(this);
314 mp_selectionRectangeLine2->setLayer("plotsLayer");
315 mp_selectionRectangeLine2->setPen(pen);
316 mp_selectionRectangeLine2->start->setType(QCPItemPosition::ptPlotCoords);
317 mp_selectionRectangeLine2->end->setType(QCPItemPosition::ptPlotCoords);
318 mp_selectionRectangeLine2->start->setCoords(0, 0);
319 mp_selectionRectangeLine2->end->setCoords(0, 0);
320 mp_selectionRectangeLine2->setVisible(false);
321
322 mp_selectionRectangeLine3 = new QCPItemLine(this);
323 mp_selectionRectangeLine3->setLayer("plotsLayer");
324 mp_selectionRectangeLine3->setPen(pen);
325 mp_selectionRectangeLine3->start->setType(QCPItemPosition::ptPlotCoords);
326 mp_selectionRectangeLine3->end->setType(QCPItemPosition::ptPlotCoords);
327 mp_selectionRectangeLine3->start->setCoords(0, 0);
328 mp_selectionRectangeLine3->end->setCoords(0, 0);
329 mp_selectionRectangeLine3->setVisible(false);
330
331 mp_selectionRectangeLine4 = new QCPItemLine(this);
332 mp_selectionRectangeLine4->setLayer("plotsLayer");
333 mp_selectionRectangeLine4->setPen(pen);
334 mp_selectionRectangeLine4->start->setType(QCPItemPosition::ptPlotCoords);
335 mp_selectionRectangeLine4->end->setType(QCPItemPosition::ptPlotCoords);
336 mp_selectionRectangeLine4->start->setCoords(0, 0);
337 mp_selectionRectangeLine4->end->setCoords(0, 0);
338 mp_selectionRectangeLine4->setVisible(false);
339}
340
341
342bool
344{
345 // qDebug();
346
347 // By default the widget comes with a graph. Remove it.
348
349 if(graphCount())
350 {
351 // QCPLayer *layer_p = graph(0)->layer();
352 // qDebug() << "The graph was on layer:" << layer_p->name();
353
354 // As of today 20210313, the graph is created on the currentLayer(), that
355 // is "main".
356
357 removeGraph(0);
358 }
359
360 // The general idea is that we do want custom layers for the trace|colormap
361 // plots.
362
363 // qDebug().noquote() << "Right before creating the new layer, layers:\n"
364 //<< allLayerNamesToString();
365
366 // Add the layer that will store all the plots and all the ancillary items.
367 addLayer(
368 "plotsLayer", layer("background"), QCustomPlot::LayerInsertMode::limAbove);
369 // qDebug().noquote() << "Added new plotsLayer, layers:\n"
370 //<< allLayerNamesToString();
371
372 // This is required so that we get the keyboard events.
373 setFocusPolicy(Qt::StrongFocus);
374 setInteractions(QCP::iRangeZoom | QCP::iSelectPlottables | QCP::iMultiSelect);
375
376 // We want to capture the signals emitted by the QCustomPlot base class.
377 connect(
378 this, &QCustomPlot::mouseMove, this, &BasePlotWidget::mouseMoveHandler);
379
380 connect(
381 this, &QCustomPlot::mousePress, this, &BasePlotWidget::mousePressHandler);
382
383 connect(this,
384 &QCustomPlot::mouseRelease,
385 this,
387
388 connect(
389 this, &QCustomPlot::mouseWheel, this, &BasePlotWidget::mouseWheelHandler);
390
391 connect(this,
392 &QCustomPlot::axisDoubleClick,
393 this,
395
396 return true;
397}
398
399
400void
402{
403 m_pen = pen;
404}
405
406
407const QPen &
409{
410 return m_pen;
411}
412
413
414void
415BasePlotWidget::setPlottingColor(QCPAbstractPlottable *plottable_p,
416 const QColor &new_color)
417{
418 if(plottable_p == nullptr)
419 qFatal("Pointer cannot be nullptr.");
420
421 // First this single-graph widget
422 QPen pen;
423
424 pen = plottable_p->pen();
425 pen.setColor(new_color);
426 plottable_p->setPen(pen);
427
428 replot();
429}
430
431
432void
433BasePlotWidget::setPlottingColor(int index, const QColor &new_color)
434{
435 if(!new_color.isValid())
436 return;
437
438 QCPGraph *graph_p = graph(index);
439
440 if(graph_p == nullptr)
441 qFatal("Programming error.");
442
443 return setPlottingColor(graph_p, new_color);
444}
445
446
447QColor
448BasePlotWidget::getPlottingColor(QCPAbstractPlottable *plottable_p) const
449{
450 if(plottable_p == nullptr)
451 qFatal("Programming error.");
452
453 return plottable_p->pen().color();
454}
455
456
457QColor
459{
460 QCPGraph *graph_p = graph(index);
461
462 if(graph_p == nullptr)
463 qFatal("Programming error.");
464
465 return getPlottingColor(graph_p);
466}
467
468
469void
470BasePlotWidget::setAxisLabelX(const QString &label)
471{
472 xAxis->setLabel(label);
473}
474
475
476void
477BasePlotWidget::setAxisLabelY(const QString &label)
478{
479 yAxis->setLabel(label);
480}
481
482
483// AXES RANGE HISTORY-related functions
484void
486{
487 m_xAxisRangeHistory.clear();
488 m_yAxisRangeHistory.clear();
489
490 m_xAxisRangeHistory.push_back(new QCPRange(xAxis->range()));
491 m_yAxisRangeHistory.push_back(new QCPRange(yAxis->range()));
492
493 // qDebug() << "size of history:" << m_xAxisRangeHistory.size()
494 //<< "setting index to 0";
495
496 // qDebug() << "resetting axes history to values:" << xAxis->range().lower
497 //<< "--" << xAxis->range().upper << "and" << yAxis->range().lower
498 //<< "--" << yAxis->range().upper;
499
501}
502
503
504//! Create new axis range history items and append them to the history.
505/*!
506
507 The plot widget is queried to get the current x/y-axis ranges and the
508 current ranges are appended to the history for x-axis and for y-axis.
509
510*/
511void
513{
514 m_xAxisRangeHistory.push_back(new QCPRange(xAxis->range()));
515 m_yAxisRangeHistory.push_back(new QCPRange(yAxis->range()));
516
518
519 // qDebug() << "axes history size:" << m_xAxisRangeHistory.size()
520 //<< "current index:" << m_lastAxisRangeHistoryIndex
521 //<< xAxis->range().lower << "--" << xAxis->range().upper << "and"
522 //<< yAxis->range().lower << "--" << yAxis->range().upper;
523}
524
525
526//! Go up one history element in the axis history.
527/*!
528
529 If possible, back up one history item in the axis histories and update the
530 plot's x/y-axis ranges to match that history item.
531
532*/
533void
535{
536 // qDebug() << "axes history size:" << m_xAxisRangeHistory.size()
537 //<< "current index:" << m_lastAxisRangeHistoryIndex;
538
540 {
541 // qDebug() << "current index is 0 returning doing nothing";
542
543 return;
544 }
545
546 // qDebug() << "Setting index to:" << m_lastAxisRangeHistoryIndex - 1
547 //<< "and restoring axes history to that index";
548
550}
551
552
553//! Get the axis histories at index \p index and update the plot ranges.
554/*!
555
556 \param index index at which to select the axis history item.
557
558 \sa updateAxesRangeHistory().
559
560*/
561void
563{
564 // qDebug() << "Axes history size:" << m_xAxisRangeHistory.size()
565 //<< "current index:" << m_lastAxisRangeHistoryIndex
566 //<< "asking to restore index:" << index;
567
568 if(index >= m_xAxisRangeHistory.size())
569 {
570 // qDebug() << "index >= history size. Returning.";
571 return;
572 }
573
574 // We want to go back to the range history item at index, which means we want
575 // to pop back all the items between index+1 and size-1.
576
577 while(m_xAxisRangeHistory.size() > index + 1)
578 m_xAxisRangeHistory.pop_back();
579
580 if(m_xAxisRangeHistory.size() - 1 != index)
581 qFatal("Programming error.");
582
583 xAxis->setRange(*(m_xAxisRangeHistory.at(index)));
584 yAxis->setRange(*(m_yAxisRangeHistory.at(index)));
585
587
588 mp_vPosTracerItem->setVisible(false);
589 mp_hPosTracerItem->setVisible(false);
590
591 mp_vStartTracerItem->setVisible(false);
592 mp_vEndTracerItem->setVisible(false);
593
594
595 // The start tracer will keep beeing represented at the last position and last
596 // size even if we call this function repetitively. So actually do not show,
597 // it will reappare as soon as the mouse is moved.
598 // if(m_shouldTracersBeVisible)
599 //{
600 // mp_vStartTracerItem->setVisible(true);
601 //}
602
603 replot();
604
606
607 // qDebug() << "restored axes history to index:" << index
608 //<< "with values:" << xAxis->range().lower << "--"
609 //<< xAxis->range().upper << "and" << yAxis->range().lower << "--"
610 //<< yAxis->range().upper;
611
613}
614// AXES RANGE HISTORY-related functions
615
616
617/// KEYBOARD-related EVENTS
618void
620{
621 // qDebug() << "ENTER";
622
623 // We need this because some keys modify our behaviour.
624 m_context.m_pressedKeyCode = event->key();
625 m_context.m_keyboardModifiers = QGuiApplication::queryKeyboardModifiers();
626
627 if(event->key() == Qt::Key_Left || event->key() == Qt::Key_Right ||
628 event->key() == Qt::Key_Up || event->key() == Qt::Key_Down)
629 {
630 return directionKeyPressEvent(event);
631 }
632 else if(event->key() == m_leftMousePseudoButtonKey ||
633 event->key() == m_rightMousePseudoButtonKey)
634 {
635 return mousePseudoButtonKeyPressEvent(event);
636 }
637
638 // Do not do anything here, because this function is used by derived classes
639 // that will emit the signal below. Otherwise there are going to be multiple
640 // signals sent.
641 // qDebug() << "Going to emit keyPressEventSignal(m_context);";
642 // emit keyPressEventSignal(m_context);
643}
644
645
646//! Handle specific key codes and trigger respective actions.
647void
649{
650 m_context.m_releasedKeyCode = event->key();
651
652 // The keyboard key is being released, set the key code to 0.
654
655 m_context.m_keyboardModifiers = QGuiApplication::queryKeyboardModifiers();
656
657 // Now test if the key that was released is one of the housekeeping keys.
658 if(event->key() == Qt::Key_Backspace)
659 {
660 // qDebug();
661
662 // The user wants to iterate back in the x/y axis range history.
664
665 event->accept();
666 }
667 else if(event->key() == Qt::Key_Space)
668 {
669 return spaceKeyReleaseEvent(event);
670 }
671 else if(event->key() == Qt::Key_Delete)
672 {
673 // The user wants to delete a graph. What graph is to be determined
674 // programmatically:
675
676 // If there is a single graph, then that is the graph to be removed.
677 // If there are more than one graph, then only the ones that are selected
678 // are to be removed.
679
680 // Note that the user of this widget might want to provide the user with
681 // the ability to specify if all the children graph needs to be removed
682 // also. This can be coded in key modifiers. So provide the context.
683
684 int graph_count = plottableCount();
685
686 if(!graph_count)
687 {
688 // qDebug() << "Not a single graph in the plot widget. Doing
689 // nothing.";
690
691 event->accept();
692 return;
693 }
694
695 if(graph_count == 1)
696 {
697 // qDebug() << "A single graph is in the plot widget. Emitting a graph
698 // " "destruction requested signal for it:"
699 //<< graph();
700
702 }
703 else
704 {
705 // At this point we know there are more than one graph in the plot
706 // widget. We need to get the selected one (if any).
707 QList<QCPGraph *> selected_graph_list;
708
709 selected_graph_list = selectedGraphs();
710
711 if(!selected_graph_list.size())
712 {
713 event->accept();
714 return;
715 }
716
717 // qDebug() << "Number of selected graphs to be destrobyed:"
718 //<< selected_graph_list.size();
719
720 for(int iter = 0; iter < selected_graph_list.size(); ++iter)
721 {
722 // qDebug()
723 //<< "Emitting a graph destruction requested signal for graph:"
724 //<< selected_graph_list.at(iter);
725
727 this, selected_graph_list.at(iter), m_context);
728
729 // We do not do this, because we want the slot called by the
730 // signal above to handle that removal. Remember that it is not
731 // possible to delete graphs manually.
732 //
733 // removeGraph(selected_graph_list.at(iter));
734 }
735 event->accept();
736 }
737 }
738 // End of
739 // else if(event->key() == Qt::Key_Delete)
740 else if(event->key() == Qt::Key_T)
741 {
742 // The user wants to toggle the visibiity of the tracers.
744
746 hideTracers();
747 else
748 showTracers();
749
750 event->accept();
751 }
752 else if(event->key() == Qt::Key_Left || event->key() == Qt::Key_Right ||
753 event->key() == Qt::Key_Up || event->key() == Qt::Key_Down)
754 {
755 return directionKeyReleaseEvent(event);
756 }
757 else if(event->key() == m_leftMousePseudoButtonKey ||
758 event->key() == m_rightMousePseudoButtonKey)
759 {
761 }
762 else if(event->key() == Qt::Key_S)
763 {
764 // The user has asked to measure the horizontal size of the rectangle and
765 // to start making a skewed selection rectangle.
766
769
770 // qDebug() << "Set m_context.selectRectangleWidth to"
771 //<< m_context.m_selectRectangleWidth << "upon release of S key";
772 }
773 // At this point emit the signal, since we did not treat it. Maybe the
774 // consumer widget wants to know that the keyboard key was released.
775
777}
778
779
780void
781BasePlotWidget::spaceKeyReleaseEvent([[maybe_unused]] QKeyEvent *event)
782{
783 // qDebug();
784}
785
786
787void
789{
790 // qDebug() << "event key:" << event->key();
791
792 // The user is trying to move the positional cursor/markers. There are
793 // multiple way they can do that:
794 //
795 // 1.a. Hitting the arrow left/right keys alone will search for next pixel.
796 // 1.b. Hitting the arrow left/right keys with Alt modifier will search for a
797 // multiple of pixels that might be equivalent to one 20th of the pixel width
798 // of the plot widget.
799 // 1.c Hitting the left/right keys with Alt and Shift modifiers will search
800 // for a multiple of pixels that might be the equivalent to half of the pixel
801 // width.
802 //
803 // 2. Hitting the Control modifier will move the cursor to the next data point
804 // of the graph.
805
806 int pixel_increment = 0;
807
808 if(m_context.m_keyboardModifiers == Qt::NoModifier)
809 pixel_increment = 1;
810 else if(m_context.m_keyboardModifiers == Qt::AltModifier)
811 pixel_increment = 50;
812
813 // The user is moving the positional markers. This is equivalent to a
814 // non-dragging cursor movement to the next pixel. Note that the origin is
815 // located at the top left, so key down increments and key up decrements.
816
817 if(event->key() == Qt::Key_Left)
818 horizontalMoveMouseCursorCountPixels(-pixel_increment);
819 else if(event->key() == Qt::Key_Right)
821 else if(event->key() == Qt::Key_Up)
822 verticalMoveMouseCursorCountPixels(-pixel_increment);
823 else if(event->key() == Qt::Key_Down)
824 verticalMoveMouseCursorCountPixels(pixel_increment);
825
826 event->accept();
827}
828
829
830void
832{
833 // qDebug() << "event key:" << event->key();
834 event->accept();
835}
836
837
838void
840 [maybe_unused]] QKeyEvent *event)
841{
842 // qDebug();
843}
844
845
846void
848{
849
850 QPointF pixel_coordinates(
851 xAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.x()),
852 yAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.y()));
853
854 Qt::MouseButton button = Qt::NoButton;
855 QEvent::Type q_event_type = QEvent::MouseButtonPress;
856
857 if(event->key() == m_leftMousePseudoButtonKey)
858 {
859 // Toggles the left mouse button on/off
860
861 button = Qt::LeftButton;
862
865
867 q_event_type = QEvent::MouseButtonPress;
868 else
869 q_event_type = QEvent::MouseButtonRelease;
870 }
871 else if(event->key() == m_rightMousePseudoButtonKey)
872 {
873 // Toggles the right mouse button.
874
875 button = Qt::RightButton;
876
879
881 q_event_type = QEvent::MouseButtonPress;
882 else
883 q_event_type = QEvent::MouseButtonRelease;
884 }
885
886 // qDebug() << "pressed/released pseudo button:" << button
887 //<< "q_event_type:" << q_event_type;
888
889 // Synthesize a QMouseEvent and use it.
890
891 QMouseEvent *mouse_event_p =
892 new QMouseEvent(q_event_type,
893 pixel_coordinates,
894 mapToGlobal(pixel_coordinates.toPoint()),
895 mapToGlobal(pixel_coordinates.toPoint()),
896 button,
897 button,
899 Qt::MouseEventSynthesizedByApplication);
900
901 if(q_event_type == QEvent::MouseButtonPress)
902 mousePressHandler(mouse_event_p);
903 else
904 mouseReleaseHandler(mouse_event_p);
905
906 // event->accept();
907}
908/// KEYBOARD-related EVENTS
909
910
911/// MOUSE-related EVENTS
912
913void
915{
916
917 // If we have no focus, then get it. See setFocus() to understand why asking
918 // for focus is cosly and thus why we want to make this decision first.
919 if(!hasFocus())
920 setFocus();
921
922 qDebug() << (graph() != nullptr);
923 // if(graph(0) != nullptr)
924 // { // check if the widget contains some graphs
925
926 // The event->button() must be by Qt instructions considered to be 0.
927
928 // Whatever happens, we want to store the plot coordinates of the current
929 // mouse cursor position (will be useful later for countless needs).
930
931 QPointF mousePoint = event->localPos();
932 qDebug();
933 qDebug() << "local mousePoint position in pixels:" << mousePoint;
934
935 m_context.m_lastCursorHoveredPoint.setX(xAxis->pixelToCoord(mousePoint.x()));
936 qDebug();
937 m_context.m_lastCursorHoveredPoint.setY(yAxis->pixelToCoord(mousePoint.y()));
938 qDebug();
939
940 // qDebug() << "lastCursorHoveredPoint coord:"
941 //<< m_context.lastCursorHoveredPoint;
942
943 // Now, depending on the button(s) (if any) that are pressed or not, we
944 // have a different processing.
945
946 qDebug();
947 if(m_context.m_pressedMouseButtons & Qt::LeftButton ||
948 m_context.m_pressedMouseButtons & Qt::RightButton)
950 else
952 // }
953 qDebug();
954 event->accept();
955}
956
957
958void
960{
961
962 qDebug();
964
965 qDebug();
966 // We are not dragging the mouse (no button pressed), simply let this
967 // widget's consumer know the position of the cursor and update the markers.
968 // The consumer of this widget will update mouse cursor position at
969 // m_context.m_lastCursorHoveredPoint if so needed.
970
972
973 qDebug();
974
975 // We are not dragging, so we do not show the region end tracer we only
976 // show the anchoring start trace that might be of use if the user starts
977 // using the arrow keys to move the cursor.
978 if(mp_vEndTracerItem != nullptr)
979 mp_vEndTracerItem->setVisible(false);
980
981 qDebug();
982 // Only bother with the tracers if the user wants them to be visible.
983 // Their crossing point must be exactly at the last cursor-hovered point.
984
986 {
987 // We are not dragging, so only show the position markers (v and h);
988
989 qDebug();
990 if(mp_hPosTracerItem != nullptr)
991 {
992 // Horizontal position tracer.
993 mp_hPosTracerItem->setVisible(true);
994 mp_hPosTracerItem->start->setCoords(
995 xAxis->range().lower, m_context.m_lastCursorHoveredPoint.y());
996 mp_hPosTracerItem->end->setCoords(
997 xAxis->range().upper, m_context.m_lastCursorHoveredPoint.y());
998 }
999
1000 qDebug();
1001 // Vertical position tracer.
1002 if(mp_vPosTracerItem != nullptr)
1003 {
1004 mp_vPosTracerItem->setVisible(true);
1005
1006 mp_vPosTracerItem->setVisible(true);
1007 mp_vPosTracerItem->start->setCoords(
1008 m_context.m_lastCursorHoveredPoint.x(), yAxis->range().upper);
1009 mp_vPosTracerItem->end->setCoords(
1010 m_context.m_lastCursorHoveredPoint.x(), yAxis->range().lower);
1011 }
1012
1013 qDebug();
1014 replot();
1015 }
1016
1017
1018 return;
1019}
1020
1021
1022void
1024{
1025 qDebug();
1027
1028 // Now store the mouse position data into the the current drag point
1029 // member datum, that will be used in countless occasions later.
1031 m_context.m_keyboardModifiers = QGuiApplication::queryKeyboardModifiers();
1032
1033 // When we drag (either keyboard or mouse), we hide the position markers
1034 // (black) and we show the start and end vertical markers for the region.
1035 // Then, we draw the horizontal region range marker that delimits
1036 // horizontally the dragged-over region.
1037
1038 if(mp_hPosTracerItem != nullptr)
1039 mp_hPosTracerItem->setVisible(false);
1040 if(mp_vPosTracerItem != nullptr)
1041 mp_vPosTracerItem->setVisible(false);
1042
1043 // Only bother with the tracers if the user wants them to be visible.
1045 {
1046
1047 // The vertical end tracer position must be refreshed.
1048 mp_vEndTracerItem->start->setCoords(m_context.m_currentDragPoint.x(),
1049 yAxis->range().upper);
1050
1052 yAxis->range().lower);
1053
1054 mp_vEndTracerItem->setVisible(true);
1055 }
1056
1057 // Whatever the button, when we are dealing with the axes, we do not
1058 // want to show any of the tracers.
1059
1061 {
1062 qDebug();
1063 if(mp_hPosTracerItem != nullptr)
1064 mp_hPosTracerItem->setVisible(false);
1065 if(mp_vPosTracerItem != nullptr)
1066 mp_vPosTracerItem->setVisible(false);
1067
1068 if(mp_vStartTracerItem != nullptr)
1069 mp_vStartTracerItem->setVisible(false);
1070 if(mp_vEndTracerItem != nullptr)
1071 mp_vEndTracerItem->setVisible(false);
1072 }
1073 else
1074 {
1075 qDebug();
1076 // Since we are not dragging the mouse cursor over the axes, make sure
1077 // we store the drag directions in the context, as this might be
1078 // useful for later operations.
1079
1081
1082 // qDebug() << m_context.toString();
1083 }
1084
1085 // Because when we drag the mouse button (whatever the button) we need to
1086 // know what is the drag delta (distance between start point and current
1087 // point of the drag operation) on both axes, ask that these x|y deltas be
1088 // computed.
1089 qDebug();
1091
1092 // Now deal with the BUTTON-SPECIFIC CODE.
1093
1094 if(m_context.m_mouseButtonsAtMousePress & Qt::LeftButton)
1095 {
1096 qDebug();
1098 }
1099 else if(m_context.m_mouseButtonsAtMousePress & Qt::RightButton)
1100 {
1101 qDebug();
1103 }
1104
1105 qDebug();
1106}
1107
1108
1109void
1111{
1112 qDebug() << "the left button is dragging.";
1113
1114 // Set the context.m_isMeasuringDistance to false, which later might be set to
1115 // true if effectively we are measuring a distance. This is required because
1116 // the derived widget classes might want to know if they have to perform
1117 // some action on the basis that context is measuring a distance, for
1118 // example the mass spectrum-specific widget might want to compute
1119 // deconvolutions.
1120
1122
1123 // Let's first check if the mouse drag operation originated on either
1124 // axis. In that case, the user is performing axis reframing or rescaling.
1125
1127 {
1128 qDebug() << "Click was on one of the axes.";
1129
1130 if(m_context.m_keyboardModifiers & Qt::ControlModifier)
1131 {
1132 // The user is asking a rescale of the plot.
1133
1134 // We know that we do not want the tracers when we perform axis
1135 // rescaling operations.
1136
1137 if(mp_hPosTracerItem != nullptr)
1138 mp_hPosTracerItem->setVisible(false);
1139 if(mp_vPosTracerItem != nullptr)
1140 mp_vPosTracerItem->setVisible(false);
1141
1142 if(mp_vStartTracerItem != nullptr)
1143 mp_vStartTracerItem->setVisible(false);
1144 if(mp_vEndTracerItem != nullptr)
1145 mp_vEndTracerItem->setVisible(false);
1146
1147 // This operation is particularly intensive, thus we want to
1148 // reduce the number of calculations by skipping this calculation
1149 // a number of times. The user can ask for this feature by
1150 // clicking the 'Q' letter.
1151
1152 if(m_context.m_pressedKeyCode == Qt::Key_Q)
1153 {
1155 {
1157 return;
1158 }
1159 else
1160 {
1162 }
1163 }
1164
1165 qDebug() << "Asking that the axes be rescaled.";
1166
1167 axisRescale();
1168 }
1169 else
1170 {
1171 // The user was simply dragging the axis. Just pan, that is slide
1172 // the plot in the same direction as the mouse movement and with the
1173 // same amplitude.
1174
1175 qDebug() << "Asking that the axes be panned.";
1176
1177 axisPan();
1178 }
1179
1180 return;
1181 }
1182
1183 // At this point we understand that the user was not performing any
1184 // panning/rescaling operation by clicking on any one of the axes.. Go on
1185 // with other possibilities.
1186
1187 // Let's check if the user is actually drawing a rectangle (covering a
1188 // real area) or is drawing a line.
1189
1190 // qDebug() << "The mouse dragging did not originate on an axis.";
1191
1193 {
1194 qDebug() << "Apparently the selection is a real rectangle.";
1195
1196 // When we draw a rectangle the tracers are of no use.
1197
1198 if(mp_hPosTracerItem != nullptr)
1199 mp_hPosTracerItem->setVisible(false);
1200 if(mp_vPosTracerItem != nullptr)
1201 mp_vPosTracerItem->setVisible(false);
1202
1203 if(mp_vStartTracerItem != nullptr)
1204 mp_vStartTracerItem->setVisible(false);
1205 if(mp_vEndTracerItem != nullptr)
1206 mp_vEndTracerItem->setVisible(false);
1207
1208 // Draw the rectangle, false, not as line segment and
1209 // false, not for integration
1211
1212 // Draw the selection width/height text
1215
1216 // qDebug() << "The selection polygon:"
1217 //<< m_context.m_selectionPolygon.toString();
1218 }
1219 else
1220 {
1221 qDebug() << "Apparently we are measuring a delta.";
1222
1223 // Draw the rectangle, true, as line segment and
1224 // false, not for integration
1226
1227 // qDebug() << "The selection polygon:"
1228 //<< m_context.m_selectionPolygon.toString();
1229
1230 // The pure position tracers should be hidden.
1231 if(mp_hPosTracerItem != nullptr)
1232 mp_hPosTracerItem->setVisible(true);
1233 if(mp_vPosTracerItem != nullptr)
1234 mp_vPosTracerItem->setVisible(true);
1235
1236 // Then, make sure the region range vertical tracers are visible.
1237 if(mp_vStartTracerItem != nullptr)
1238 mp_vStartTracerItem->setVisible(true);
1239 if(mp_vEndTracerItem != nullptr)
1240 mp_vEndTracerItem->setVisible(true);
1241
1242 // Draw the selection width text
1244 }
1245 qDebug();
1246}
1247
1248
1249void
1251{
1252 qDebug() << "the right button is dragging.";
1253
1254 // Set the context.m_isMeasuringDistance to false, which later might be set to
1255 // true if effectively we are measuring a distance. This is required because
1256 // the derived widgets might want to know if they have to perform some
1257 // action on the basis that context is measuring a distance, for example the
1258 // mass spectrum-specific widget might want to compute deconvolutions.
1259
1261
1263 {
1264 // qDebug() << "Apparently the selection is a real rectangle.";
1265
1266 // When we draw a rectangle the tracers are of no use.
1267
1268 if(mp_hPosTracerItem != nullptr)
1269 mp_hPosTracerItem->setVisible(false);
1270 if(mp_vPosTracerItem != nullptr)
1271 mp_vPosTracerItem->setVisible(false);
1272
1273 if(mp_vStartTracerItem != nullptr)
1274 mp_vStartTracerItem->setVisible(false);
1275 if(mp_vEndTracerItem != nullptr)
1276 mp_vEndTracerItem->setVisible(false);
1277
1278 // Draw the rectangle, false for as_line_segment and true, for
1279 // integration.
1281
1282 // Draw the selection width/height text
1285 }
1286 else
1287 {
1288 // qDebug() << "Apparently the selection is a not a rectangle.";
1289
1290 // Draw the rectangle, true, as line segment and
1291 // false, true for integration
1293
1294 // Draw the selection width text
1296 }
1297
1298 // Draw the selection width text
1300}
1301
1302
1303void
1305{
1306 // When the user clicks this widget it has to take focus.
1307 setFocus();
1308
1309 QPointF mousePoint = event->localPos();
1310
1311 m_context.m_lastPressedMouseButton = event->button();
1312 m_context.m_mouseButtonsAtMousePress = event->buttons();
1313
1314 // The pressedMouseButtons must continually inform on the status of
1315 // pressed buttons so add the pressed button.
1316 m_context.m_pressedMouseButtons |= event->button();
1317
1318 qDebug().noquote() << m_context.toString();
1319
1320 // In all the processing of the events, we need to know if the user is
1321 // clicking somewhere with the intent to change the plot ranges (reframing
1322 // or rescaling the plot).
1323 //
1324 // Reframing the plot means that the new x and y axes ranges are modified
1325 // so that they match the region that the user has encompassed by left
1326 // clicking the mouse and dragging it over the plot. That is we reframe
1327 // the plot so that it contains only the "selected" region.
1328 //
1329 // Rescaling the plot means the the new x|y axis range is modified such
1330 // that the lower axis range is constant and the upper axis range is moved
1331 // either left or right by the same amont as the x|y delta encompassed by
1332 // the user moving the mouse. The axis is thus either compressed (mouse
1333 // movement is leftwards) or un-compressed (mouse movement is rightwards).
1334
1335 // There are two ways to perform axis range modifications:
1336 //
1337 // 1. By clicking on any of the axes
1338 // 2. By clicking on the plot region but using keyboard key modifiers,
1339 // like Alt and Ctrl.
1340 //
1341 // We need to know both cases separately which is why we need to perform a
1342 // number of tests below.
1343
1344 // Let's check if the click is on the axes, either X or Y, because that
1345 // will allow us to take proper actions.
1346
1347 if(isClickOntoXAxis(mousePoint))
1348 {
1349 // The X axis was clicked upon, we need to document that:
1350 // qDebug() << __FILE__ << __LINE__
1351 //<< "Layout element is axisRect and actually on an X axis part.";
1352
1354
1355 // int currentInteractions = interactions();
1356 // currentInteractions |= QCP::iRangeDrag;
1357 // setInteractions((QCP::Interaction)currentInteractions);
1358 // axisRect()->setRangeDrag(xAxis->orientation());
1359 }
1360 else
1362
1363 if(isClickOntoYAxis(mousePoint))
1364 {
1365 // The Y axis was clicked upon, we need to document that:
1366 // qDebug() << __FILE__ << __LINE__
1367 //<< "Layout element is axisRect and actually on an Y axis part.";
1368
1370
1371 // int currentInteractions = interactions();
1372 // currentInteractions |= QCP::iRangeDrag;
1373 // setInteractions((QCP::Interaction)currentInteractions);
1374 // axisRect()->setRangeDrag(yAxis->orientation());
1375 }
1376 else
1378
1379 // At this point, let's see if we need to remove the QCP::iRangeDrag bit:
1380
1382 {
1383 // qDebug() << __FILE__ << __LINE__
1384 // << "Click outside of axes.";
1385
1386 // int currentInteractions = interactions();
1387 // currentInteractions = currentInteractions & ~QCP::iRangeDrag;
1388 // setInteractions((QCP::Interaction)currentInteractions);
1389 }
1390
1391 m_context.m_startDragPoint.setX(xAxis->pixelToCoord(mousePoint.x()));
1392 m_context.m_startDragPoint.setY(yAxis->pixelToCoord(mousePoint.y()));
1393
1394 // Now install the vertical start tracer at the last cursor hovered
1395 // position.
1396 if((m_shouldTracersBeVisible) && (mp_vStartTracerItem != nullptr))
1397 mp_vStartTracerItem->setVisible(true);
1398
1399 if(mp_vStartTracerItem != nullptr)
1400 {
1401 mp_vStartTracerItem->start->setCoords(
1402 m_context.m_lastCursorHoveredPoint.x(), yAxis->range().upper);
1403 mp_vStartTracerItem->end->setCoords(
1404 m_context.m_lastCursorHoveredPoint.x(), yAxis->range().lower);
1405 }
1406
1407 replot();
1408}
1409
1410
1411void
1413{
1414 // Now the real code of this function.
1415
1416 m_context.m_lastReleasedMouseButton = event->button();
1417
1418 // The event->buttons() is the description of the buttons that are pressed at
1419 // the moment the handler is invoked, that is now. If left and right were
1420 // pressed, and left was released, event->buttons() would be right.
1421 m_context.m_mouseButtonsAtMouseRelease = event->buttons();
1422
1423 // The pressedMouseButtons must continually inform on the status of pressed
1424 // buttons so remove the released button.
1425 m_context.m_pressedMouseButtons ^= event->button();
1426
1427 // qDebug().noquote() << m_context.toString();
1428
1429 // We'll need to know if modifiers were pressed a the moment the user
1430 // released the mouse button.
1431 m_context.m_keyboardModifiers = QGuiApplication::keyboardModifiers();
1432
1434 {
1435 // Let the user know that the mouse was *not* being dragged.
1437
1438 event->accept();
1439
1440 return;
1441 }
1442
1443 // Let the user know that the mouse was being dragged.
1445
1446 // We cannot hide all items in one go because we rely on their visibility
1447 // to know what kind of dragging operation we need to perform (line-only
1448 // X-based zoom or rectangle-based X- and Y-based zoom, for example). The
1449 // only thing we know is that we can make the text invisible.
1450
1451 // Same for the x delta text item
1452 mp_xDeltaTextItem->setVisible(false);
1453 mp_yDeltaTextItem->setVisible(false);
1454
1455 // We do not show the end vertical region range marker.
1456 mp_vEndTracerItem->setVisible(false);
1457
1458 // Horizontal position tracer.
1459 mp_hPosTracerItem->setVisible(true);
1460 mp_hPosTracerItem->start->setCoords(xAxis->range().lower,
1462 mp_hPosTracerItem->end->setCoords(xAxis->range().upper,
1464
1465 // Vertical position tracer.
1466 mp_vPosTracerItem->setVisible(true);
1467
1468 mp_vPosTracerItem->setVisible(true);
1470 yAxis->range().upper);
1472 yAxis->range().lower);
1473
1474 // Force replot now because later that call might not be performed.
1475 replot();
1476
1477 // If we were using the "quantum" display for the rescale of the axes
1478 // using the Ctrl-modified left button click drag in the axes, then reset
1479 // the count to 0.
1481
1482 // Now that we have computed the useful ranges, we need to check what to do
1483 // depending on the button that was pressed.
1484
1485 if(m_context.m_lastReleasedMouseButton == Qt::LeftButton)
1486 {
1488 }
1489 else if(m_context.m_lastReleasedMouseButton == Qt::RightButton)
1490 {
1492 }
1493
1494 // By definition we are stopping the drag operation by releasing the mouse
1495 // button. Whatever that mouse button was pressed before and if there was
1496 // one pressed before. We cannot set that boolean value to false before
1497 // this place, because we call a number of routines above that need to know
1498 // that dragging was occurring. Like mouseReleaseHandledEvent(event) for
1499 // example.
1500
1502
1503 event->accept();
1504
1505 return;
1506}
1507
1508
1509void
1511{
1512
1514 {
1515
1516 // When the mouse move handler pans the plot, we cannot store each axes
1517 // range history element that would mean store a huge amount of such
1518 // elements, as many element as there are mouse move event handled by
1519 // the Qt event queue. But we can store an axis range history element
1520 // for the last situation of the mouse move: when the button is
1521 // released:
1522
1524
1526
1527 replot();
1528
1529 // Nothing else to do.
1530 return;
1531 }
1532
1533 // There are two possibilities:
1534 //
1535 // 1. The full selection polygon (four lines) were currently drawn, which
1536 // means the user was willing to perform a zoom operation
1537 //
1538 // 2. Only the first top line was drawn, which means the user was dragging
1539 // the cursor horizontally. That might have two ends, as shown below.
1540
1541 // So, first check what is drawn of the selection polygon.
1542
1543 PolygonType current_selection_polygon_type =
1545
1546 // Now that we know what was currently drawn of the selection polygon, we can
1547 // remove it. true to reset the values to 0.
1549
1550 // Force replot now because later that call might not be performed.
1551 replot();
1552
1553 if(current_selection_polygon_type == PolygonType::FULL_POLYGON)
1554 {
1555 // qDebug() << "Yes, the full polygon was visible";
1556
1557 // If we were dragging with the left button pressed and could draw a
1558 // rectangle, then we were preparing a zoom operation. Let's bring that
1559 // operation to its accomplishment.
1560
1561 axisZoom();
1562
1563 // qDebug() << "The selection polygon:"
1564 //<< m_context.m_selectionPolygon.toString();
1565
1566 return;
1567 }
1568 else if(current_selection_polygon_type == PolygonType::TOP_LINE)
1569 {
1570 // qDebug() << "No, only the top line of the full polygon was visible";
1571
1572 // The user was dragging the left mouse cursor and that may mean they were
1573 // measuring a distance or willing to perform a special zoom operation if
1574 // the Ctrl key was down.
1575
1576 // If the user started by clicking in the plot region, dragged the mouse
1577 // cursor with the left button and pressed the Ctrl modifier, then that
1578 // means that they wanted to do a rescale over the x-axis in the form of a
1579 // reframing.
1580
1581 if(m_context.m_keyboardModifiers & Qt::ControlModifier)
1582 {
1583 return axisReframe();
1584
1585 // qDebug() << "The selection polygon:"
1586 //<< m_context.m_selectionPolygon.toString();
1587 }
1588 }
1589 // else
1590 // qDebug() << "Another possibility.";
1591}
1592
1593
1594void
1596{
1597 qDebug();
1598 // The right button is used for the integrations. Not for axis range
1599 // operations. So all we have to do is remove the various graphics items and
1600 // send a signal with the context that contains all the data required by the
1601 // user to perform the integrations over the right plot regions.
1602
1603 // Whatever we were doing we need to make the selection line invisible:
1604
1605 if(mp_xDeltaTextItem->visible())
1606 mp_xDeltaTextItem->setVisible(false);
1607 if(mp_yDeltaTextItem->visible())
1608 mp_yDeltaTextItem->setVisible(false);
1609
1610 // Also make the vertical end tracer invisible.
1611 mp_vEndTracerItem->setVisible(false);
1612
1613 // Once the integration is asked for, then the selection rectangle if of no
1614 // more use.
1616
1617 // Force replot now because later that call might not be performed.
1618 replot();
1619
1620 // Note that we only request an integration if the x-axis delta is enough.
1621
1622 double x_delta_pixel =
1623 fabs(xAxis->coordToPixel(m_context.m_currentDragPoint.x()) -
1624 xAxis->coordToPixel(m_context.m_startDragPoint.x()));
1625
1626 if(x_delta_pixel > 3)
1628 // else
1629 qDebug() << "Not asking for integration.";
1630}
1631
1632
1633void
1634BasePlotWidget::mouseWheelHandler([[maybe_unused]] QWheelEvent *event)
1635{
1636 // We should record the new range values each time the wheel is used to
1637 // zoom/unzoom.
1638
1639 m_context.m_xRange = QCPRange(xAxis->range());
1640 m_context.m_yRange = QCPRange(yAxis->range());
1641
1642 // qDebug() << "New x range: " << m_context.m_xRange;
1643 // qDebug() << "New y range: " << m_context.m_yRange;
1644
1646
1649
1650 event->accept();
1651}
1652
1653
1654void
1656 QCPAxis *axis,
1657 [[maybe_unused]] QCPAxis::SelectablePart part,
1658 QMouseEvent *event)
1659{
1660 // qDebug();
1661
1662 m_context.m_keyboardModifiers = QGuiApplication::queryKeyboardModifiers();
1663
1664 if(m_context.m_keyboardModifiers & Qt::ControlModifier)
1665 {
1666 // qDebug();
1667
1668 // If the Ctrl modifiers is active, then both axes are to be reset. Also
1669 // the histories are reset also.
1670
1671 rescaleAxes();
1673 }
1674 else
1675 {
1676 // qDebug();
1677
1678 // Only the axis passed as parameter is to be rescaled.
1679 // Reset the range of that axis to the max view possible.
1680
1681 axis->rescale();
1682
1684
1685 event->accept();
1686 }
1687
1688 // The double-click event does not cancel the mouse press event. That is, if
1689 // left-double-clicking, at the end of the operation the button still
1690 // "pressed". We need to remove manually the button from the pressed buttons
1691 // context member.
1692
1693 m_context.m_pressedMouseButtons ^= event->button();
1694
1696
1698
1699 replot();
1700}
1701
1702
1703bool
1704BasePlotWidget::isClickOntoXAxis(const QPointF &mousePoint)
1705{
1706 QCPLayoutElement *layoutElement = layoutElementAt(mousePoint);
1707
1708 if(layoutElement &&
1709 layoutElement == dynamic_cast<QCPLayoutElement *>(axisRect()))
1710 {
1711 // The graph is *inside* the axisRect that is the outermost envelope of
1712 // the graph. Thus, if we want to know if the click was indeed on an
1713 // axis, we need to check what selectable part of the the axisRect we
1714 // were
1715 // clicking:
1716 QCPAxis::SelectablePart selectablePart;
1717
1718 selectablePart = xAxis->getPartAt(mousePoint);
1719
1720 if(selectablePart == QCPAxis::spAxisLabel ||
1721 selectablePart == QCPAxis::spAxis ||
1722 selectablePart == QCPAxis::spTickLabels)
1723 return true;
1724 }
1725
1726 return false;
1727}
1728
1729
1730bool
1731BasePlotWidget::isClickOntoYAxis(const QPointF &mousePoint)
1732{
1733 QCPLayoutElement *layoutElement = layoutElementAt(mousePoint);
1734
1735 if(layoutElement &&
1736 layoutElement == dynamic_cast<QCPLayoutElement *>(axisRect()))
1737 {
1738 // The graph is *inside* the axisRect that is the outermost envelope of
1739 // the graph. Thus, if we want to know if the click was indeed on an
1740 // axis, we need to check what selectable part of the the axisRect we
1741 // were
1742 // clicking:
1743 QCPAxis::SelectablePart selectablePart;
1744
1745 selectablePart = yAxis->getPartAt(mousePoint);
1746
1747 if(selectablePart == QCPAxis::spAxisLabel ||
1748 selectablePart == QCPAxis::spAxis ||
1749 selectablePart == QCPAxis::spTickLabels)
1750 return true;
1751 }
1752
1753 return false;
1754}
1755
1756/// MOUSE-related EVENTS
1757
1758
1759/// MOUSE MOVEMENTS mouse/keyboard-triggered
1760
1761int
1763{
1764 // The user is dragging the mouse, probably to rescale the axes, but we need
1765 // to sort out in which direction the drag is happening.
1766
1767 // This function should be called after calculateDragDeltas, so that
1768 // m_context has the proper x/y delta values that we'll compare.
1769
1770 // Note that we cannot compare simply x or y deltas because the y axis might
1771 // have a different scale that the x axis. So we first need to convert the
1772 // positions to pixels.
1773
1774 double x_delta_pixel =
1775 fabs(xAxis->coordToPixel(m_context.m_currentDragPoint.x()) -
1776 xAxis->coordToPixel(m_context.m_startDragPoint.x()));
1777
1778 double y_delta_pixel =
1779 fabs(yAxis->coordToPixel(m_context.m_currentDragPoint.y()) -
1780 yAxis->coordToPixel(m_context.m_startDragPoint.y()));
1781
1782 if(x_delta_pixel > y_delta_pixel)
1783 return Qt::Horizontal;
1784
1785 return Qt::Vertical;
1786}
1787
1788
1789void
1791{
1792 // First convert the graph coordinates to pixel coordinates.
1793
1794 QPointF pixels_coordinates(xAxis->coordToPixel(graph_coordinates.x()),
1795 yAxis->coordToPixel(graph_coordinates.y()));
1796
1797 moveMouseCursorPixelCoordToGlobal(pixels_coordinates.toPoint());
1798}
1799
1800
1801void
1803{
1804 // qDebug() << "Calling set pos with new cursor position.";
1805 QCursor::setPos(mapToGlobal(pixel_coordinates.toPoint()));
1806}
1807
1808
1809void
1811{
1812 QPointF graph_coord = horizontalGetGraphCoordNewPointCountPixels(pixel_count);
1813
1814 QPointF pixel_coord(xAxis->coordToPixel(graph_coord.x()),
1815 yAxis->coordToPixel(graph_coord.y()));
1816
1817 // Now we need ton convert the new coordinates to the global position system
1818 // and to move the cursor to that new position. That will create an event to
1819 // move the mouse cursor.
1820
1821 moveMouseCursorPixelCoordToGlobal(pixel_coord.toPoint());
1822}
1823
1824
1825QPointF
1827{
1828 QPointF pixel_coordinates(
1829 xAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.x()) + pixel_count,
1830 yAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.y()));
1831
1832 // Now convert back to local coordinates.
1833
1834 QPointF graph_coordinates(xAxis->pixelToCoord(pixel_coordinates.x()),
1835 yAxis->pixelToCoord(pixel_coordinates.y()));
1836
1837 return graph_coordinates;
1838}
1839
1840
1841void
1843{
1844
1845 QPointF graph_coord = verticalGetGraphCoordNewPointCountPixels(pixel_count);
1846
1847 QPointF pixel_coord(xAxis->coordToPixel(graph_coord.x()),
1848 yAxis->coordToPixel(graph_coord.y()));
1849
1850 // Now we need ton convert the new coordinates to the global position system
1851 // and to move the cursor to that new position. That will create an event to
1852 // move the mouse cursor.
1853
1854 moveMouseCursorPixelCoordToGlobal(pixel_coord.toPoint());
1855}
1856
1857
1858QPointF
1860{
1861 QPointF pixel_coordinates(
1862 xAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.x()),
1863 yAxis->coordToPixel(m_context.m_lastCursorHoveredPoint.y()) + pixel_count);
1864
1865 // Now convert back to local coordinates.
1866
1867 QPointF graph_coordinates(xAxis->pixelToCoord(pixel_coordinates.x()),
1868 yAxis->pixelToCoord(pixel_coordinates.y()));
1869
1870 return graph_coordinates;
1871}
1872
1873/// MOUSE MOVEMENTS mouse/keyboard-triggered
1874
1875
1876/// RANGE-related functions
1877
1878QCPRange
1879BasePlotWidget::getRangeX(bool &found_range, int index) const
1880{
1881 QCPGraph *graph_p = graph(index);
1882
1883 if(graph_p == nullptr)
1884 qFatal("Programming error.");
1885
1886 return graph_p->getKeyRange(found_range);
1887}
1888
1889
1890QCPRange
1891BasePlotWidget::getRangeY(bool &found_range, int index) const
1892{
1893 QCPGraph *graph_p = graph(index);
1894
1895 if(graph_p == nullptr)
1896 qFatal("Programming error.");
1897
1898 return graph_p->getValueRange(found_range);
1899}
1900
1901
1902QCPRange
1904 RangeType range_type,
1905 bool &found_range) const
1906{
1907
1908 // Iterate in all the graphs in this widget and return a QCPRange that has
1909 // its lower member as the greatest lower value of all
1910 // its upper member as the smallest upper value of all
1911
1912 if(!graphCount())
1913 {
1914 found_range = false;
1915
1916 return QCPRange(0, 1);
1917 }
1918
1919 if(graphCount() == 1)
1920 return graph()->getKeyRange(found_range);
1921
1922 bool found_at_least_one_range = false;
1923
1924 // Create an invalid range.
1925 QCPRange result_range(QCPRange::minRange + 1, QCPRange::maxRange + 1);
1926
1927 for(int iter = 0; iter < graphCount(); ++iter)
1928 {
1929 QCPRange temp_range;
1930
1931 bool found_range_for_iter = false;
1932
1933 QCPGraph *graph_p = graph(iter);
1934
1935 // Depending on the axis param, select the key or value range.
1936
1937 if(axis == Axis::x)
1938 temp_range = graph_p->getKeyRange(found_range_for_iter);
1939 else if(axis == Axis::y)
1940 temp_range = graph_p->getValueRange(found_range_for_iter);
1941 else
1942 qFatal("Cannot reach this point. Programming error.");
1943
1944 // Was a range found for the iterated graph ? If not skip this
1945 // iteration.
1946
1947 if(!found_range_for_iter)
1948 continue;
1949
1950 // While the innermost_range is invalid, we need to seed it with a good
1951 // one. So check this.
1952
1953 if(!QCPRange::validRange(result_range))
1954 qFatal("The obtained range is invalid !");
1955
1956 // At this point we know the obtained range is OK.
1957 result_range = temp_range;
1958
1959 // We found at least one valid range!
1960 found_at_least_one_range = true;
1961
1962 // At this point we have two valid ranges to compare. Depending on
1963 // range_type, we need to perform distinct comparisons.
1964
1965 if(range_type == RangeType::innermost)
1966 {
1967 if(temp_range.lower > result_range.lower)
1968 result_range.lower = temp_range.lower;
1969 if(temp_range.upper < result_range.upper)
1970 result_range.upper = temp_range.upper;
1971 }
1972 else if(range_type == RangeType::outermost)
1973 {
1974 if(temp_range.lower < result_range.lower)
1975 result_range.lower = temp_range.lower;
1976 if(temp_range.upper > result_range.upper)
1977 result_range.upper = temp_range.upper;
1978 }
1979 else
1980 qFatal("Cannot reach this point. Programming error.");
1981
1982 // Continue to next graph, if any.
1983 }
1984 // End of
1985 // for(int iter = 0; iter < graphCount(); ++iter)
1986
1987 // Let the caller know if we found at least one range.
1988 found_range = found_at_least_one_range;
1989
1990 return result_range;
1991}
1992
1993
1994QCPRange
1996{
1997
1998 return getRange(Axis::x, RangeType::innermost, found_range);
1999}
2000
2001
2002QCPRange
2004{
2005 return getRange(Axis::x, RangeType::outermost, found_range);
2006}
2007
2008
2009QCPRange
2011{
2012
2013 return getRange(Axis::y, RangeType::innermost, found_range);
2014}
2015
2016
2017QCPRange
2019{
2020 return getRange(Axis::y, RangeType::outermost, found_range);
2021}
2022
2023
2024/// RANGE-related functions
2025
2026
2027/// PLOTTING / REPLOTTING functions
2028
2029void
2031{
2032 // Get the current x lower/upper range, that is, leftmost/rightmost x
2033 // coordinate.
2034 double xLower = xAxis->range().lower;
2035 double xUpper = xAxis->range().upper;
2036
2037 // Get the current y lower/upper range, that is, bottommost/topmost y
2038 // coordinate.
2039 double yLower = yAxis->range().lower;
2040 double yUpper = yAxis->range().upper;
2041
2042 // This function is called only when the user has clicked on the x/y axis or
2043 // when the user has dragged the left mouse button with the Ctrl key
2044 // modifier. The m_context.m_wasClickOnXAxis is then simulated in the mouse
2045 // move handler. So we need to test which axis was clicked-on.
2046
2048 {
2049
2050 // We are changing the range of the X axis.
2051
2052 // What is the x delta ?
2053 double xDelta =
2055
2056 // If xDelta is < 0, the we were dragging from right to left, we are
2057 // compressing the view on the x axis, by adding new data to the right
2058 // hand size of the graph. So we add xDelta to the upper bound of the
2059 // range. Otherwise we are uncompressing the view on the x axis and
2060 // remove the xDelta from the upper bound of the range. This is why we
2061 // have the
2062 // '-'
2063 // and not '+' below;
2064
2065 // qDebug() << "Setting xaxis:" << xLower << "--" << xUpper - xDelta;
2066
2067 xAxis->setRange(xLower, xUpper - xDelta);
2068 }
2069 // End of
2070 // if(m_context.m_wasClickOnXAxis)
2071 else // that is, if(m_context.m_wasClickOnYAxis)
2072 {
2073 // We are changing the range of the Y axis.
2074
2075 // What is the y delta ?
2076 double yDelta =
2078
2079 // See above for an explanation of the computation.
2080
2081 yAxis->setRange(yLower, yUpper - yDelta);
2082
2083 // Old version
2084 // if(yDelta < 0)
2085 //{
2086 //// The dragging operation was from top to bottom, we are enlarging
2087 //// the range (thus, we are unzooming the view, since the widget
2088 //// always has the same size).
2089
2090 // yAxis->setRange(yLower, yUpper + fabs(yDelta));
2091 //}
2092 // else
2093 //{
2094 //// The dragging operation was from bottom to top, we are reducing
2095 //// the range (thus, we are zooming the view, since the widget
2096 //// always has the same size).
2097
2098 // yAxis->setRange(yLower, yUpper - fabs(yDelta));
2099 //}
2100 }
2101 // End of
2102 // else // that is, if(m_context.m_wasClickOnYAxis)
2103
2104 // Update the context with the current axes ranges
2105
2107
2109
2110 replot();
2111}
2112
2113
2114void
2116{
2117
2118 // double sorted_start_drag_point_x =
2119 // std::min(m_context.m_startDragPoint.x(), m_context.m_currentDragPoint.x());
2120
2121 // xAxis->setRange(sorted_start_drag_point_x,
2122 // sorted_start_drag_point_x + fabs(m_context.m_xDelta));
2123
2124 xAxis->setRange(
2126
2127 // Note that the y axis should be rescaled from current lower value to new
2128 // upper value matching the y-axis position of the cursor when the mouse
2129 // button was released.
2130
2131 yAxis->setRange(xAxis->range().lower,
2132 std::max<double>(m_context.m_yRegionRangeStart,
2134
2135 // qDebug() << "xaxis:" << xAxis->range().lower << "-" <<
2136 // xAxis->range().upper
2137 //<< "yaxis:" << yAxis->range().lower << "-" << yAxis->range().upper;
2138
2140
2143
2144 replot();
2145}
2146
2147
2148void
2150{
2151
2152 // Use the m_context.m_xRegionRangeStart/End values, but we need to sort the
2153 // values before using them, because now we want to really have the lower x
2154 // value. Simply craft a QCPRange that will swap the values if lower is not
2155 // < than upper QCustomPlot calls this normalization).
2156
2157 xAxis->setRange(
2159
2160 yAxis->setRange(
2162
2164
2167
2168 replot();
2169}
2170
2171
2172void
2174{
2175 qDebug();
2176
2177 // Sanity check
2179 qFatal(
2180 "This function can only be called if the mouse click was on one of the "
2181 "axes");
2182
2184 {
2185 xAxis->setRange(m_context.m_xRange.lower - m_context.m_xDelta,
2187 }
2188
2190 {
2191 yAxis->setRange(m_context.m_yRange.lower - m_context.m_yDelta,
2193 }
2194
2196
2197 // qDebug() << "The updated context:" << m_context.toString();
2198
2199 // We cannot store the new ranges in the history, because the pan operation
2200 // involved a huge quantity of micro-movements elicited upon each mouse move
2201 // cursor event so we would have a huge history.
2202 // updateAxesRangeHistory();
2203
2204 // Now that the context has the right range values, we can emit the
2205 // signal that will be used by this plot widget users, typically to
2206 // abide by the x/y range lock required by the user.
2207
2209
2210 replot();
2211}
2212
2213
2214void
2216 QCPRange yAxisRange,
2217 Axis axis)
2218{
2219 // qDebug() << "With axis:" << (int)axis;
2220
2221 if(static_cast<int>(axis) & static_cast<int>(Axis::x))
2222 {
2223 xAxis->setRange(xAxisRange.lower, xAxisRange.upper);
2224 }
2225
2226 if(static_cast<int>(axis) & static_cast<int>(Axis::y))
2227 {
2228 yAxis->setRange(yAxisRange.lower, yAxisRange.upper);
2229 }
2230
2231 // We do not want to update the history, because there would be way too
2232 // much history items, since this function is called upon mouse moving
2233 // handling and not only during mouse release events.
2234 // updateAxesRangeHistory();
2235
2236 replot();
2237}
2238
2239
2240void
2241BasePlotWidget::replotWithAxisRangeX(double lower, double upper)
2242{
2243 // qDebug();
2244
2245 xAxis->setRange(lower, upper);
2246
2247 replot();
2248}
2249
2250
2251void
2252BasePlotWidget::replotWithAxisRangeY(double lower, double upper)
2253{
2254 // qDebug();
2255
2256 yAxis->setRange(lower, upper);
2257
2258 replot();
2259}
2260
2261/// PLOTTING / REPLOTTING functions
2262
2263
2264/// PLOT ITEMS : TRACER TEXT ITEMS...
2265
2266//! Hide the selection line, the xDelta text and the zoom rectangle items.
2267void
2269{
2270 mp_xDeltaTextItem->setVisible(false);
2271 mp_yDeltaTextItem->setVisible(false);
2272
2273 // mp_zoomRectItem->setVisible(false);
2275
2276 // Force a replot to make sure the action is immediately visible by the
2277 // user, even without moving the mouse.
2278 replot();
2279}
2280
2281
2282//! Show the traces (vertical and horizontal).
2283void
2285{
2287
2288 mp_vPosTracerItem->setVisible(true);
2289 mp_hPosTracerItem->setVisible(true);
2290
2291 mp_vStartTracerItem->setVisible(true);
2292 mp_vEndTracerItem->setVisible(true);
2293
2294 // Force a replot to make sure the action is immediately visible by the
2295 // user, even without moving the mouse.
2296 replot();
2297}
2298
2299
2300//! Hide the traces (vertical and horizontal).
2301void
2303{
2305 mp_hPosTracerItem->setVisible(false);
2306 mp_vPosTracerItem->setVisible(false);
2307
2308 mp_vStartTracerItem->setVisible(false);
2309 mp_vEndTracerItem->setVisible(false);
2310
2311 // Force a replot to make sure the action is immediately visible by the
2312 // user, even without moving the mouse.
2313 replot();
2314}
2315
2316
2317void
2319 bool for_integration)
2320{
2321 // The user has dragged the mouse left button on the graph, which means he
2322 // is willing to draw a selection rectangle, either for zooming-in or for
2323 // integration.
2324
2325 if(mp_xDeltaTextItem != nullptr)
2326 mp_xDeltaTextItem->setVisible(false);
2327 if(mp_yDeltaTextItem != nullptr)
2328 mp_yDeltaTextItem->setVisible(false);
2329
2330 // Ensure the right selection rectangle is drawn.
2331
2332 updateSelectionRectangle(as_line_segment, for_integration);
2333
2334 // Note that if we draw a zoom rectangle, then we are certainly not
2335 // measuring anything. So set the boolean value to false so that the user of
2336 // this widget or derived classes know that there is nothing to perform upon
2337 // (like deconvolution, for example).
2338
2340
2341 // Also remove the delta value from the pipeline by sending a simple
2342 // distance without measurement signal.
2343
2344 emit xAxisMeasurementSignal(m_context, false);
2345
2346 replot();
2347}
2348
2349
2350void
2352{
2353 // The user is dragging the mouse over the graph and we want them to know what
2354 // is the x delta value, that is the span between the point at the start of
2355 // the drag and the current drag position.
2356
2357 // FIXME: is this still true?
2358 //
2359 // We do not want to show the position markers because the only horiontal
2360 // line to be visible must be contained between the start and end vertiacal
2361 // tracer items.
2362 if(mp_hPosTracerItem != nullptr)
2363 mp_hPosTracerItem->setVisible(false);
2364 if(mp_vPosTracerItem != nullptr)
2365 mp_vPosTracerItem->setVisible(false);
2366
2367 // We want to draw the text in the middle position of the leftmost-rightmost
2368 // point, even with skewed rectangle selection.
2369
2370 QPointF leftmost_point = m_context.m_selectionPolygon.getLeftMostPoint();
2371
2372 // qDebug() << "leftmost_point:" << leftmost_point;
2373
2374 QPointF rightmost_point = m_context.m_selectionPolygon.getRightMostPoint();
2375
2376 // qDebug() << "rightmost_point:" << rightmost_point;
2377
2378 double x_axis_center_position =
2379 leftmost_point.x() + (rightmost_point.x() - leftmost_point.x()) / 2;
2380
2381 // qDebug() << "x_axis_center_position:" << x_axis_center_position;
2382
2383 // We want the text to print inside the rectangle, always at the current drag
2384 // point so the eye can follow the delta value while looking where to drag the
2385 // mouse. To position the text inside the rectangle, we need to know what is
2386 // the drag direction.
2387
2388 // Set aside a point instance to store the pixel coordinates of the text.
2389 QPointF pixel_coordinates;
2390
2391 // What is the distance between the rectangle line at current drag point and
2392 // the text itself.
2393 int pixels_away_from_line = 15;
2394
2395 // ATTENTION: the pixel coordinates for the vertical direction go in reverse
2396 // order with respect to the y axis values !!! That is pixel(0,0) is top left
2397 // of the graph.
2398 if(static_cast<int>(m_context.m_dragDirections) &
2399 static_cast<int>(DragDirections::TOP_TO_BOTTOM))
2400 {
2401 // We need to print inside the rectangle, that is pixels_above_line pixels
2402 // to the bottom, so with pixel y value decremented of that
2403 // pixels_above_line value (one would have expected to increment that
2404 // value, along the y axis, but the coordinates in pixel go in reverse
2405 // order).
2406
2407 pixels_away_from_line *= -1;
2408 }
2409
2410 double y_axis_pixel_coordinate =
2411 yAxis->coordToPixel(m_context.m_currentDragPoint.y());
2412
2413 double y_axis_modified_pixel_coordinate =
2414 y_axis_pixel_coordinate + pixels_away_from_line;
2415
2416 pixel_coordinates.setX(x_axis_center_position);
2417 pixel_coordinates.setY(y_axis_modified_pixel_coordinate);
2418
2419 // Now convert back to graph coordinates.
2420
2421 QPointF graph_coordinates(xAxis->pixelToCoord(pixel_coordinates.x()),
2422 yAxis->pixelToCoord(pixel_coordinates.y()));
2423 if(mp_xDeltaTextItem != nullptr)
2424 {
2425 mp_xDeltaTextItem->position->setCoords(x_axis_center_position,
2426 graph_coordinates.y());
2427 mp_xDeltaTextItem->setText(
2428 QString("%1").arg(m_context.m_xDelta, 0, 'f', 3));
2429 mp_xDeltaTextItem->setFont(QFont(font().family(), 9));
2430 mp_xDeltaTextItem->setVisible(true);
2431 }
2432
2433 // Set the boolean to true so that derived widgets know that something is
2434 // being measured, and they can act accordingly, for example by computing
2435 // deconvolutions in a mass spectrum.
2437
2438 replot();
2439
2440 // Let the caller know that we were measuring something.
2442
2443 return;
2444}
2445
2446
2447void
2449{
2451 return;
2452
2453 // The user is dragging the mouse over the graph and we want them to know what
2454 // is the y delta value, that is the span between the point at the top of
2455 // the selection polygon and the point at its bottom.
2456
2457 // FIXME: is this still true?
2458 //
2459 // We do not want to show the position markers because the only horiontal
2460 // line to be visible must be contained between the start and end vertiacal
2461 // tracer items.
2462 mp_hPosTracerItem->setVisible(false);
2463 mp_vPosTracerItem->setVisible(false);
2464
2465 // We want to draw the text in the middle position of the leftmost-rightmost
2466 // point, even with skewed rectangle selection.
2467
2468 QPointF leftmost_point = m_context.m_selectionPolygon.getLeftMostPoint();
2469 QPointF topmost_point = m_context.m_selectionPolygon.getTopMostPoint();
2470
2471 // qDebug() << "leftmost_point:" << leftmost_point;
2472
2473 QPointF rightmost_point = m_context.m_selectionPolygon.getRightMostPoint();
2474 QPointF bottommost_point = m_context.m_selectionPolygon.getBottomMostPoint();
2475
2476 // qDebug() << "rightmost_point:" << rightmost_point;
2477
2478 double x_axis_center_position =
2479 leftmost_point.x() + (rightmost_point.x() - leftmost_point.x()) / 2;
2480
2481 double y_axis_center_position =
2482 bottommost_point.y() + (topmost_point.y() - bottommost_point.y()) / 2;
2483
2484 // qDebug() << "x_axis_center_position:" << x_axis_center_position;
2485
2486 mp_yDeltaTextItem->position->setCoords(x_axis_center_position,
2487 y_axis_center_position);
2488 mp_yDeltaTextItem->setText(QString("%1").arg(m_context.m_yDelta, 0, 'f', 3));
2489 mp_yDeltaTextItem->setFont(QFont(font().family(), 9));
2490 mp_yDeltaTextItem->setVisible(true);
2491 mp_yDeltaTextItem->setRotation(90);
2492
2493 // Set the boolean to true so that derived widgets know that something is
2494 // being measured, and they can act accordingly, for example by computing
2495 // deconvolutions in a mass spectrum.
2497
2498 replot();
2499
2500 // Let the caller know that we were measuring something.
2502}
2503
2504
2505void
2507{
2508
2509 // We compute signed differentials. If the user does not want the sign,
2510 // fabs(double) is their friend.
2511
2512 // Compute the xAxis differential:
2513
2516
2517 // Same with the Y-axis range:
2518
2521
2522 // qDebug() << "xDelta:" << m_context.m_xDelta
2523 //<< "and yDelta:" << m_context.m_yDelta;
2524
2525 return;
2526}
2527
2528
2529bool
2531{
2532 // First get the height of the plot.
2533 double plotHeight = yAxis->range().upper - yAxis->range().lower;
2534
2535 double heightDiff =
2537
2538 double heightDiffRatio = (heightDiff / plotHeight) * 100;
2539
2540 if(heightDiffRatio > 10)
2541 {
2542 // qDebug() << "isVerticalDisplacementAboveThreshold: true";
2543 return true;
2544 }
2545
2546 // qDebug() << "isVerticalDisplacementAboveThreshold: false";
2547 return false;
2548}
2549
2550
2551void
2553{
2554
2555 // if(for_integration)
2556 // qDebug() << "for_integration:" << for_integration;
2557
2558 // When we make a linear selection, the selection polygon is a polygon that
2559 // has the following characteristics:
2560 //
2561 // the x range is the linear selection span
2562 //
2563 // the y range is the widest std::min -> std::max possible.
2564
2565 // This is how the selection polygon logic knows if its is mono-
2566 // two-dimensional.
2567
2568 // We want the top left point to effectively be the top left point, so check
2569 // the direction of the mouse cursor drag.
2570
2571 double x_range_start =
2573 double x_range_end =
2575
2576 double y_position = m_context.m_startDragPoint.y();
2577
2578 m_context.m_selectionPolygon.set1D(x_range_start, x_range_end);
2579
2580 // Top line
2581 mp_selectionRectangeLine1->start->setCoords(
2582 QPointF(x_range_start, y_position));
2583 mp_selectionRectangeLine1->end->setCoords(QPointF(x_range_end, y_position));
2584
2585 // Only if we are drawing a selection rectangle for integration, do we set
2586 // arrow heads to the line.
2587 if(for_integration)
2588 {
2589 mp_selectionRectangeLine1->setHead(QCPLineEnding::esSpikeArrow);
2590 mp_selectionRectangeLine1->setTail(QCPLineEnding::esSpikeArrow);
2591 }
2592 else
2593 {
2594 mp_selectionRectangeLine1->setHead(QCPLineEnding::esNone);
2595 mp_selectionRectangeLine1->setTail(QCPLineEnding::esNone);
2596 }
2597 mp_selectionRectangeLine1->setVisible(true);
2598
2599 // Right line: does not exist, start and end are the same end point of the top
2600 // line.
2601 mp_selectionRectangeLine2->start->setCoords(QPointF(x_range_end, y_position));
2602 mp_selectionRectangeLine2->end->setCoords(QPointF(x_range_end, y_position));
2603 mp_selectionRectangeLine2->setVisible(false);
2604
2605 // Bottom line: identical to the top line, but invisible
2606 mp_selectionRectangeLine3->start->setCoords(
2607 QPointF(x_range_start, y_position));
2608 mp_selectionRectangeLine3->end->setCoords(QPointF(x_range_end, y_position));
2609 mp_selectionRectangeLine3->setVisible(false);
2610
2611 // Left line: does not exist: start and end are the same end point of the top
2612 // line.
2613 mp_selectionRectangeLine4->start->setCoords(QPointF(x_range_end, y_position));
2614 mp_selectionRectangeLine4->end->setCoords(QPointF(x_range_end, y_position));
2615 mp_selectionRectangeLine4->setVisible(false);
2616}
2617
2618
2619void
2621{
2622
2623 // if(for_integration)
2624 // qDebug() << "for_integration:" << for_integration;
2625
2626 // We are handling a conventional rectangle. Just create four points
2627 // from top left to bottom right. But we want the top left point to be
2628 // effectively the top left point and the bottom point to be the bottom point.
2629 // So we need to try all four direction combinations, left to right or
2630 // converse versus top to bottom or converse.
2631
2633
2635 {
2636 // qDebug() << "Dragging from right to left";
2637
2639 {
2640 // qDebug() << "Dragging from top to bottom";
2641
2642 // TOP_LEFT_POINT
2647
2648 // TOP_RIGHT_POINT
2652
2653 // BOTTOM_RIGHT_POINT
2658
2659 // BOTTOM_LEFT_POINT
2664 }
2665 // End of
2666 // if(m_context.m_currentDragPoint.y() < m_context.m_startDragPoint.y())
2667 else
2668 {
2669 // qDebug() << "Dragging from bottom to top";
2670
2671 // TOP_LEFT_POINT
2676
2677 // TOP_RIGHT_POINT
2682
2683 // BOTTOM_RIGHT_POINT
2687
2688 // BOTTOM_LEFT_POINT
2693 }
2694 }
2695 // End of
2696 // if(m_context.m_currentDragPoint.x() < m_context.m_startDragPoint.x())
2697 else
2698 {
2699 // qDebug() << "Dragging from left to right";
2700
2702 {
2703 // qDebug() << "Dragging from top to bottom";
2704
2705 // TOP_LEFT_POINT
2709
2710 // TOP_RIGHT_POINT
2715
2716 // BOTTOM_RIGHT_POINT
2721
2722 // BOTTOM_LEFT_POINT
2727 }
2728 else
2729 {
2730 // qDebug() << "Dragging from bottom to top";
2731
2732 // TOP_LEFT_POINT
2737
2738 // TOP_RIGHT_POINT
2743
2744 // BOTTOM_RIGHT_POINT
2749
2750 // BOTTOM_LEFT_POINT
2754 }
2755 }
2756
2757 // qDebug() << "Now draw the lines with points:"
2758 //<< m_context.m_selectionPolygon.toString();
2759
2760 // Top line
2761 mp_selectionRectangeLine1->start->setCoords(
2763 mp_selectionRectangeLine1->end->setCoords(
2765
2766 // Only if we are drawing a selection rectangle for integration, do we
2767 // set arrow heads to the line.
2768 if(for_integration)
2769 {
2770 mp_selectionRectangeLine1->setHead(QCPLineEnding::esSpikeArrow);
2771 mp_selectionRectangeLine1->setTail(QCPLineEnding::esSpikeArrow);
2772 }
2773 else
2774 {
2775 mp_selectionRectangeLine1->setHead(QCPLineEnding::esNone);
2776 mp_selectionRectangeLine1->setTail(QCPLineEnding::esNone);
2777 }
2778
2779 mp_selectionRectangeLine1->setVisible(true);
2780
2781 // Right line
2782 mp_selectionRectangeLine2->start->setCoords(
2784 mp_selectionRectangeLine2->end->setCoords(
2786 mp_selectionRectangeLine2->setVisible(true);
2787
2788 // Bottom line
2789 mp_selectionRectangeLine3->start->setCoords(
2791 mp_selectionRectangeLine3->end->setCoords(
2793 mp_selectionRectangeLine3->setVisible(true);
2794
2795 // Left line
2796 mp_selectionRectangeLine4->start->setCoords(
2798 mp_selectionRectangeLine4->end->setCoords(
2800 mp_selectionRectangeLine4->setVisible(true);
2801}
2802
2803
2804void
2806{
2807
2808 // if(for_integration)
2809 // qDebug() << "for_integration:" << for_integration;
2810
2811 // We are handling a skewed rectangle, that is a rectangle that is
2812 // tilted either to the left or to the right.
2813
2814 // qDebug() << "m_context.m_selectRectangleWidth: "
2815 //<< m_context.m_selectRectangleWidth;
2816
2817 // Top line
2818 // start
2819
2820 // qDebug() << "m_context.m_startDragPoint: " <<
2821 // m_context.m_startDragPoint.x()
2822 //<< "-" << m_context.m_startDragPoint.y();
2823
2824 // qDebug() << "m_context.m_currentDragPoint: "
2825 //<< m_context.m_currentDragPoint.x() << "-"
2826 //<< m_context.m_currentDragPoint.y();
2827
2829
2831 {
2832 // qDebug() << "Dragging from right to left";
2833
2835 {
2836 // qDebug() << "Dragging from top to bottom";
2837
2842
2843 // m_context.m_selRectTopLeftPoint.setX(
2844 // m_context.m_startDragPoint.x() -
2845 // m_context.m_selectRectangleWidth);
2846 // m_context.m_selRectTopLeftPoint.setY(m_context.m_startDragPoint.y());
2847
2851
2852 // m_context.m_selRectTopRightPoint.setX(m_context.m_startDragPoint.x());
2853 // m_context.m_selRectTopRightPoint.setY(m_context.m_startDragPoint.y());
2854
2859
2860 // m_context.m_selRectBottomRightPoint.setX(
2861 // m_context.m_currentDragPoint.x() +
2862 // m_context.m_selectRectangleWidth);
2863 // m_context.m_selRectBottomRightPoint.setY(
2864 // m_context.m_currentDragPoint.y());
2865
2870
2871 // m_context.m_selRectBottomLeftPoint.setX(
2872 // m_context.m_currentDragPoint.x());
2873 // m_context.m_selRectBottomLeftPoint.setY(
2874 // m_context.m_currentDragPoint.y());
2875 }
2876 else
2877 {
2878 // qDebug() << "Dragging from bottom to top";
2879
2884
2885 // m_context.m_selRectTopLeftPoint.setX(
2886 // m_context.m_currentDragPoint.x());
2887 // m_context.m_selRectTopLeftPoint.setY(
2888 // m_context.m_currentDragPoint.y());
2889
2894
2895 // m_context.m_selRectTopRightPoint.setX(
2896 // m_context.m_currentDragPoint.x() +
2897 // m_context.m_selectRectangleWidth);
2898 // m_context.m_selRectTopRightPoint.setY(
2899 // m_context.m_currentDragPoint.y());
2900
2901
2905
2906 // m_context.m_selRectBottomRightPoint.setX(
2907 // m_context.m_startDragPoint.x());
2908 // m_context.m_selRectBottomRightPoint.setY(
2909 // m_context.m_startDragPoint.y());
2910
2915
2916 // m_context.m_selRectBottomLeftPoint.setX(
2917 // m_context.m_startDragPoint.x() -
2918 // m_context.m_selectRectangleWidth);
2919 // m_context.m_selRectBottomLeftPoint.setY(
2920 // m_context.m_startDragPoint.y());
2921 }
2922 }
2923 // End of
2924 // Dragging from right to left.
2925 else
2926 {
2927 // qDebug() << "Dragging from left to right";
2928
2930 {
2931 // qDebug() << "Dragging from top to bottom";
2932
2936
2937 // m_context.m_selRectTopLeftPoint.setX(m_context.m_startDragPoint.x());
2938 // m_context.m_selRectTopLeftPoint.setY(m_context.m_startDragPoint.y());
2939
2944
2945 // m_context.m_selRectTopRightPoint.setX(
2946 // m_context.m_startDragPoint.x() +
2947 // m_context.m_selectRectangleWidth);
2948 // m_context.m_selRectTopRightPoint.setY(m_context.m_startDragPoint.y());
2949
2954
2955 // m_context.m_selRectBottomRightPoint.setX(
2956 // m_context.m_currentDragPoint.x());
2957 // m_context.m_selRectBottomRightPoint.setY(
2958 // m_context.m_currentDragPoint.y());
2959
2964
2965 // m_context.m_selRectBottomLeftPoint.setX(
2966 // m_context.m_currentDragPoint.x() -
2967 // m_context.m_selectRectangleWidth);
2968 // m_context.m_selRectBottomLeftPoint.setY(
2969 // m_context.m_currentDragPoint.y());
2970 }
2971 else
2972 {
2973 // qDebug() << "Dragging from bottom to top";
2974
2979
2980 // m_context.m_selRectTopLeftPoint.setX(
2981 // m_context.m_currentDragPoint.x() -
2982 // m_context.m_selectRectangleWidth);
2983 // m_context.m_selRectTopLeftPoint.setY(
2984 // m_context.m_currentDragPoint.y());
2985
2990
2991 // m_context.m_selRectTopRightPoint.setX(
2992 // m_context.m_currentDragPoint.x());
2993 // m_context.m_selRectTopRightPoint.setY(
2994 // m_context.m_currentDragPoint.y());
2995
3000
3001 // m_context.m_selRectBottomRightPoint.setX(
3002 // m_context.m_startDragPoint.x() +
3003 // m_context.m_selectRectangleWidth);
3004 // m_context.m_selRectBottomRightPoint.setY(
3005 // m_context.m_startDragPoint.y());
3006
3010
3011 // m_context.m_selRectBottomLeftPoint.setX(
3012 // m_context.m_startDragPoint.x());
3013 // m_context.m_selRectBottomLeftPoint.setY(
3014 // m_context.m_startDragPoint.y());
3015 }
3016 }
3017 // End of Dragging from left to right.
3018
3019 // qDebug() << "Now draw the lines with points:"
3020 //<< m_context.m_selectionPolygon.toString();
3021
3022 // Top line
3023 mp_selectionRectangeLine1->start->setCoords(
3025 mp_selectionRectangeLine1->end->setCoords(
3027
3028 // Only if we are drawing a selection rectangle for integration, do we set
3029 // arrow heads to the line.
3030 if(for_integration)
3031 {
3032 mp_selectionRectangeLine1->setHead(QCPLineEnding::esSpikeArrow);
3033 mp_selectionRectangeLine1->setTail(QCPLineEnding::esSpikeArrow);
3034 }
3035 else
3036 {
3037 mp_selectionRectangeLine1->setHead(QCPLineEnding::esNone);
3038 mp_selectionRectangeLine1->setTail(QCPLineEnding::esNone);
3039 }
3040
3041 mp_selectionRectangeLine1->setVisible(true);
3042
3043 // Right line
3044 mp_selectionRectangeLine2->start->setCoords(
3046 mp_selectionRectangeLine2->end->setCoords(
3048 mp_selectionRectangeLine2->setVisible(true);
3049
3050 // Bottom line
3051 mp_selectionRectangeLine3->start->setCoords(
3053 mp_selectionRectangeLine3->end->setCoords(
3055 mp_selectionRectangeLine3->setVisible(true);
3056
3057 // Left line
3058 mp_selectionRectangeLine4->end->setCoords(
3060 mp_selectionRectangeLine4->start->setCoords(
3062 mp_selectionRectangeLine4->setVisible(true);
3063}
3064
3065
3066void
3068 bool for_integration)
3069{
3070
3071 // qDebug() << "as_line_segment:" << as_line_segment;
3072 // qDebug() << "for_integration:" << for_integration;
3073
3074 // We now need to construct the selection rectangle, either for zoom or for
3075 // integration.
3076
3077 // There are two situations :
3078 //
3079 // 1. if the rectangle should look like a line segment
3080 //
3081 // 2. if the rectangle should actually look like a rectangle. In this case,
3082 // there are two sub-situations:
3083 //
3084 // a. if the S key is down, then the rectangle is
3085 // skewed, that is its vertical sides are not parallel to the y axis.
3086 //
3087 // b. otherwise the rectangle is conventional.
3088
3089 if(as_line_segment)
3090 {
3091 update1DSelectionRectangle(for_integration);
3092 }
3093 else
3094 {
3095 if(!(m_context.m_keyboardModifiers & Qt::AltModifier))
3096 {
3097 update2DSelectionRectangleSquare(for_integration);
3098 }
3099 else if(m_context.m_keyboardModifiers & Qt::AltModifier)
3100 {
3101 update2DSelectionRectangleSkewed(for_integration);
3102 }
3103 }
3104
3105 // This code automatically sorts the ranges (range start is always less than
3106 // range end) even if the user actually selects from high to low (right to
3107 // left or bottom to top). This has implications in code that uses the
3108 // m_context data to perform some computations. This is why it is important
3109 // that m_dragDirections be set correctly to establish where the current drag
3110 // point is actually located (at which point).
3111
3116
3121
3122 // At this point, draw the text describing the widths.
3123
3124 // We want the x-delta on the bottom of the rectangle, inside it
3125 // and the y-delta on the vertical side of the rectangle, inside it.
3126
3127 // Draw the selection width text
3129}
3130
3131void
3133{
3134 mp_selectionRectangeLine1->setVisible(false);
3135 mp_selectionRectangeLine2->setVisible(false);
3136 mp_selectionRectangeLine3->setVisible(false);
3137 mp_selectionRectangeLine4->setVisible(false);
3138
3139 if(reset_values)
3140 {
3142 }
3143}
3144
3145
3146void
3148{
3150}
3151
3152
3155{
3156 // There are four lines that make the selection polygon. We want to know
3157 // which lines are visible.
3158
3159 int current_selection_polygon = static_cast<int>(PolygonType::NOT_SET);
3160
3161 if(mp_selectionRectangeLine1->visible())
3162 {
3163 current_selection_polygon |= static_cast<int>(PolygonType::TOP_LINE);
3164 // qDebug() << "current_selection_polygon:" << current_selection_polygon;
3165 }
3166 if(mp_selectionRectangeLine2->visible())
3167 {
3168 current_selection_polygon |= static_cast<int>(PolygonType::RIGHT_LINE);
3169 // qDebug() << "current_selection_polygon:" << current_selection_polygon;
3170 }
3171 if(mp_selectionRectangeLine3->visible())
3172 {
3173 current_selection_polygon |= static_cast<int>(PolygonType::BOTTOM_LINE);
3174 // qDebug() << "current_selection_polygon:" << current_selection_polygon;
3175 }
3176 if(mp_selectionRectangeLine4->visible())
3177 {
3178 current_selection_polygon |= static_cast<int>(PolygonType::LEFT_LINE);
3179 // qDebug() << "current_selection_polygon:" << current_selection_polygon;
3180 }
3181
3182 // qDebug() << "returning visibility:" << current_selection_polygon;
3183
3184 return static_cast<PolygonType>(current_selection_polygon);
3185}
3186
3187
3188bool
3190{
3191 // Sanity check
3192 int check = 0;
3193
3194 check += mp_selectionRectangeLine1->visible();
3195 check += mp_selectionRectangeLine2->visible();
3196 check += mp_selectionRectangeLine3->visible();
3197 check += mp_selectionRectangeLine4->visible();
3198
3199 if(check > 0)
3200 return true;
3201
3202 return false;
3203}
3204
3205
3206void
3208{
3209 // qDebug() << "Setting focus to the QCustomPlot:" << this;
3210
3211 QCustomPlot::setFocus();
3212
3213 // qDebug() << "Emitting setFocusSignal().";
3214
3215 emit setFocusSignal();
3216}
3217
3218
3219//! Redraw the background of the \p focusedPlotWidget plot widget.
3220void
3221BasePlotWidget::redrawPlotBackground(QWidget *focusedPlotWidget)
3222{
3223 if(focusedPlotWidget == nullptr)
3225 "baseplotwidget.cpp @ redrawPlotBackground(QWidget *focusedPlotWidget "
3226 "-- "
3227 "ERROR focusedPlotWidget cannot be nullptr.");
3228
3229 if(dynamic_cast<QWidget *>(this) != focusedPlotWidget)
3230 {
3231 // The focused widget is not *this widget. We should make sure that
3232 // we were not the one that had the focus, because in this case we
3233 // need to redraw an unfocused background.
3234
3235 axisRect()->setBackground(m_unfocusedBrush);
3236 }
3237 else
3238 {
3239 axisRect()->setBackground(m_focusedBrush);
3240 }
3241
3242 replot();
3243}
3244
3245
3246void
3248{
3249 m_context.m_xRange = QCPRange(xAxis->range().lower, xAxis->range().upper);
3250 m_context.m_yRange = QCPRange(yAxis->range().lower, yAxis->range().upper);
3251
3252 // qDebug() << "The new updated context: " << m_context.toString();
3253}
3254
3255
3256const BasePlotContext &
3258{
3259 return m_context;
3260}
3261
3262
3263} // namespace pappso
int basePlotContextPtrMetaTypeId
int basePlotContextMetaTypeId
Qt::MouseButtons m_mouseButtonsAtMousePress
SelectionPolygon m_selectionPolygon
DragDirections recordDragDirections()
Qt::KeyboardModifiers m_keyboardModifiers
Qt::MouseButtons m_lastPressedMouseButton
DragDirections m_dragDirections
Qt::MouseButtons m_pressedMouseButtons
Qt::MouseButtons m_mouseButtonsAtMouseRelease
Qt::MouseButtons m_lastReleasedMouseButton
int m_mouseMoveHandlerSkipAmount
How many mouse move events must be skipped *‍/.
std::size_t m_lastAxisRangeHistoryIndex
Index of the last axis range history item.
virtual void updateAxesRangeHistory()
Create new axis range history items and append them to the history.
virtual void mouseWheelHandler(QWheelEvent *event)
bool m_shouldTracersBeVisible
Tells if the tracers should be visible.
virtual void hideSelectionRectangle(bool reset_values=false)
virtual void mouseMoveHandlerDraggingCursor()
virtual void directionKeyReleaseEvent(QKeyEvent *event)
QCPItemText * mp_yDeltaTextItem
QCPItemLine * mp_selectionRectangeLine1
Rectangle defining the borders of zoomed-in/out data.
virtual QCPRange getOutermostRangeX(bool &found_range) const
void lastCursorHoveredPointSignal(const QPointF &pointf)
void plottableDestructionRequestedSignal(BasePlotWidget *base_plot_widget_p, QCPAbstractPlottable *plottable_p, const BasePlotContext &context)
virtual void update2DSelectionRectangleSquare(bool for_integration=false)
virtual const BasePlotContext & getContext() const
virtual void drawSelectionRectangleAndPrepareZoom(bool as_line_segment=false, bool for_integration=false)
virtual QCPRange getRangeY(bool &found_range, int index) const
virtual void keyPressEvent(QKeyEvent *event)
KEYBOARD-related EVENTS.
virtual ~BasePlotWidget()
Destruct this BasePlotWidget instance.
QCPItemLine * mp_selectionRectangeLine2
QCPItemText * mp_xDeltaTextItem
Text describing the x-axis delta value during a drag operation.
virtual void updateSelectionRectangle(bool as_line_segment=false, bool for_integration=false)
virtual void setAxisLabelX(const QString &label)
virtual void mouseMoveHandlerLeftButtonDraggingCursor()
int m_mouseMoveHandlerSkipCount
Counter to handle the "fat data" mouse move event handling.
virtual QCPRange getOutermostRangeY(bool &found_range) const
int dragDirection()
MOUSE-related EVENTS.
bool isClickOntoYAxis(const QPointF &mousePoint)
virtual void moveMouseCursorPixelCoordToGlobal(QPointF local_coordinates)
QCPItemLine * mp_hPosTracerItem
Horizontal position tracer.
QCPItemLine * mp_vPosTracerItem
Vertical position tracer.
virtual bool setupWidget()
virtual void replotWithAxesRanges(QCPRange xAxisRange, QCPRange yAxisRange, Axis axis)
virtual void setPen(const QPen &pen)
virtual void mouseReleaseHandlerRightButton()
virtual QCPRange getInnermostRangeX(bool &found_range) const
virtual void mouseMoveHandlerNotDraggingCursor()
virtual void redrawPlotBackground(QWidget *focusedPlotWidget)
Redraw the background of the focusedPlotWidget plot widget.
bool isClickOntoXAxis(const QPointF &mousePoint)
virtual void setAxisLabelY(const QString &label)
virtual void restoreAxesRangeHistory(std::size_t index)
Get the axis histories at index index and update the plot ranges.
virtual void spaceKeyReleaseEvent(QKeyEvent *event)
virtual void replotWithAxisRangeX(double lower, double upper)
virtual void createAllAncillaryItems()
virtual QColor getPlottingColor(QCPAbstractPlottable *plottable_p) const
virtual void mouseReleaseHandlerLeftButton()
QBrush m_focusedBrush
Color used for the background of focused plot.
QPen m_pen
Pen used to draw the graph and textual elements in the plot widget.
virtual bool isSelectionRectangleVisible()
virtual void drawYDeltaFeatures()
virtual bool isVerticalDisplacementAboveThreshold()
virtual void mousePressHandler(QMouseEvent *event)
KEYBOARD-related EVENTS.
virtual void verticalMoveMouseCursorCountPixels(int pixel_count)
void mouseWheelEventSignal(const BasePlotContext &context)
virtual void resetAxesRangeHistory()
virtual void showTracers()
Show the traces (vertical and horizontal).
virtual QPointF horizontalGetGraphCoordNewPointCountPixels(int pixel_count)
QCPItemLine * mp_selectionRectangeLine4
virtual void horizontalMoveMouseCursorCountPixels(int pixel_count)
BasePlotWidget(QWidget *parent)
std::vector< QCPRange * > m_yAxisRangeHistory
List of y axis ranges occurring during the panning zooming actions.
virtual QCPRange getInnermostRangeY(bool &found_range) const
virtual void setFocus()
PLOT ITEMS : TRACER TEXT ITEMS...
void keyReleaseEventSignal(const BasePlotContext &context)
virtual const QPen & getPen() const
virtual void updateContextXandYAxisRanges()
virtual void update1DSelectionRectangle(bool for_integration=false)
virtual PolygonType whatIsVisibleOfTheSelectionRectangle()
virtual void mousePseudoButtonKeyPressEvent(QKeyEvent *event)
virtual void setPlottingColor(QCPAbstractPlottable *plottable_p, const QColor &new_color)
virtual void calculateDragDeltas()
virtual QPointF verticalGetGraphCoordNewPointCountPixels(int pixel_count)
void plotRangesChangedSignal(const BasePlotContext &context)
QCPItemLine * mp_vStartTracerItem
Vertical selection start tracer (typically in green).
virtual void mouseReleaseHandler(QMouseEvent *event)
QBrush m_unfocusedBrush
Color used for the background of unfocused plot.
virtual void drawXDeltaFeatures()
virtual void axisRescale()
RANGE-related functions.
virtual void moveMouseCursorGraphCoordToGlobal(QPointF plot_coordinates)
virtual QString allLayerNamesToString() const
QCPItemLine * mp_selectionRectangeLine3
virtual void axisDoubleClickHandler(QCPAxis *axis, QCPAxis::SelectablePart part, QMouseEvent *event)
virtual void mouseMoveHandlerRightButtonDraggingCursor()
QCPItemLine * mp_vEndTracerItem
Vertical selection end tracer (typically in red).
virtual void mouseMoveHandler(QMouseEvent *event)
KEYBOARD-related EVENTS.
virtual void directionKeyPressEvent(QKeyEvent *event)
virtual QString layerableLayerName(QCPLayerable *layerable_p) const
virtual void keyReleaseEvent(QKeyEvent *event)
Handle specific key codes and trigger respective actions.
virtual void resetSelectionRectangle()
virtual void restorePreviousAxesRangeHistory()
Go up one history element in the axis history.
virtual int layerableLayerIndex(QCPLayerable *layerable_p) const
void integrationRequestedSignal(const BasePlotContext &context)
void xAxisMeasurementSignal(const BasePlotContext &context, bool with_delta)
QCPRange getRange(Axis axis, RangeType range_type, bool &found_range) const
virtual void replotWithAxisRangeY(double lower, double upper)
virtual void hideTracers()
Hide the traces (vertical and horizontal).
virtual void update2DSelectionRectangleSkewed(bool for_integration=false)
virtual void mousePseudoButtonKeyReleaseEvent(QKeyEvent *event)
virtual void hideAllPlotItems()
PLOTTING / REPLOTTING functions.
virtual QCPRange getRangeX(bool &found_range, int index) const
MOUSE MOVEMENTS mouse/keyboard-triggered.
std::vector< QCPRange * > m_xAxisRangeHistory
List of x axis ranges occurring during the panning zooming actions.
BasePlotContext m_context
void setPoint(PointSpecs point_spec, double x, double y)
QPointF getRightMostPoint() const
QPointF getLeftMostPoint() const
QPointF getBottomMostPoint() const
void set1D(double x_range_start, double x_range_end)
QPointF getPoint(PointSpecs point_spec) const
tries to keep as much as possible monoisotopes, removing any possible C13 peaks and changes multichar...
Definition: aa.cpp:39
Axis
Definition: types.h:180