summaryrefslogtreecommitdiffstats
path: root/src/datavisualization/engine/q3dscatter.cpp
blob: 3c28b4a58f79a74c845d9838c6168cab39b748fe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/

#include "q3dscatter.h"
#include "q3dscatter_p.h"
#include "scatter3dcontroller_p.h"
#include "q3dvalueaxis.h"
#include "q3dcamera.h"
#include "qscatter3dseries_p.h"

#include <QMouseEvent>

QT_DATAVISUALIZATION_BEGIN_NAMESPACE

/*!
 * \class Q3DScatter
 * \inmodule QtDataVisualization
 * \brief The Q3DScatter class provides methods for rendering 3D scatter graphs.
 * \since Qt Data Visualization 1.0
 *
 * This class enables developers to render scatter graphs in 3D and to view them by rotating the scene
 * freely. Rotation is done by holding down the right mouse button and moving the mouse. Zooming
 * is done by mouse wheel. Selection, if enabled, is done by left mouse button. The scene can be
 * reset to default camera view by clicking mouse wheel. In touch devices rotation is done
 * by tap-and-move, selection by tap-and-hold and zoom by pinch.
 *
 * If no axes are set explicitly to Q3DScatter, temporary default axes with no labels are created.
 * These default axes can be modified via axis accessors, but as soon any axis is set explicitly
 * for the orientation, the default axis for that orientation is destroyed.
 *
 * Q3DScatter supports more than one series visible at the same time.
 *
 * Methods are provided for changing themes, item selection modes and so on. See the
 * methods for more detailed descriptions.
 *
 * \section1 How to construct a minimal Q3DScatter graph
 *
 * First, construct Q3DScatter. Since we are running the graph as top level window
 * in this example, we need to clear the \c Qt::FramelessWindowHint flag, which gets set by
 * default:
 *
 * \snippet doc_src_q3dscatter_construction.cpp 0
 *
 * Now Q3DScatter is ready to receive data to be rendered. Add one series of 3 QVector3D items:
 *
 * \snippet doc_src_q3dscatter_construction.cpp 1
 *
 * Finally you will need to set it visible:
 *
 * \snippet doc_src_q3dscatter_construction.cpp 2
 *
 * The complete code needed to create and display this graph is:
 *
 * \snippet doc_src_q3dscatter_construction.cpp 3
 *
 * And this is what those few lines of code produce:
 *
 * \image q3dscatter-minimal.png
 *
 * The scene can be rotated and zoomed into, but no other interaction is included in this minimal
 * code example. You can learn more by familiarizing yourself with the examples provided, like
 * the \l{Scatter Example}.
 *
 * \sa Q3DBars, Q3DSurface, {Qt Data Visualization C++ Classes}
 */

/*!
 * Constructs a new 3D scatter graph with optional \a parent window.
 */
Q3DScatter::Q3DScatter(QWindow *parent)
    : Q3DWindow(new Q3DScatterPrivate(this), parent)
{
    dptr()->m_shared = new Scatter3DController(geometry());
    d_ptr->setVisualController(dptr()->m_shared);
    dptr()->m_shared->initializeOpenGL();
    QObject::connect(dptr()->m_shared, &Abstract3DController::selectionModeChanged, this,
                     &Q3DScatter::selectionModeChanged);
    QObject::connect(dptr()->m_shared, &Abstract3DController::shadowQualityChanged, this,
                     &Q3DScatter::shadowQualityChanged);
    QObject::connect(dptr()->m_shared, &Abstract3DController::themeChanged, this,
                     &Q3DScatter::themeChanged);
    QObject::connect(dptr()->m_shared, &Abstract3DController::needRender, d_ptr.data(),
                     &Q3DWindowPrivate::renderLater);
    QObject::connect(dptr()->m_shared, &Abstract3DController::shadowQualityChanged, dptr(),
                     &Q3DScatterPrivate::handleShadowQualityUpdate);
}

/*!
 * Destroys the 3D scatter graph.
 */
Q3DScatter::~Q3DScatter()
{
}

/*!
 * Adds the \a series to the graph. A graph can contain multiple series, but has only one set of
 * axes. If the newly added series has specified a selected item, it will be highlighted and
 * any existing selection will be cleared. Only one added series can have an active selection.
 */
void Q3DScatter::addSeries(QScatter3DSeries *series)
{
    dptr()->m_shared->addSeries(series);
}

/*!
 * Removes the \a series from the graph.
 */
void Q3DScatter::removeSeries(QScatter3DSeries *series)
{
    dptr()->m_shared->removeSeries(series);
}

/*!
 * \return list of series added to this graph.
 */
QList<QScatter3DSeries *> Q3DScatter::seriesList()
{
    return dptr()->m_shared->scatterSeriesList();
}

/*!
 * \internal
 */
void Q3DScatter::mouseDoubleClickEvent(QMouseEvent *event)
{
    dptr()->m_shared->mouseDoubleClickEvent(event);
}

/*!
 * \internal
 */
void Q3DScatter::touchEvent(QTouchEvent *event)
{
    dptr()->m_shared->touchEvent(event);
}

/*!
 * \internal
 */
void Q3DScatter::mousePressEvent(QMouseEvent *event)
{
    dptr()->m_shared->mousePressEvent(event, event->pos());
}

/*!
 * \internal
 */
void Q3DScatter::mouseReleaseEvent(QMouseEvent *event)
{
    dptr()->m_shared->mouseReleaseEvent(event, event->pos());
}

/*!
 * \internal
 */
void Q3DScatter::mouseMoveEvent(QMouseEvent *event)
{
    dptr()->m_shared->mouseMoveEvent(event, event->pos());
}

/*!
 * \internal
 */
void Q3DScatter::wheelEvent(QWheelEvent *event)
{
    dptr()->m_shared->wheelEvent(event);
}

Q3DScatterPrivate *Q3DScatter::dptr()
{
    return static_cast<Q3DScatterPrivate *>(d_ptr.data());
}

const Q3DScatterPrivate *Q3DScatter::dptrc() const
{
    return static_cast<const Q3DScatterPrivate *>(d_ptr.data());
}

/*!
 * \property Q3DScatter::theme
 *
 * A \a theme to be used for the graph. Ownership of the \a theme is transferred. Previous theme
 * is deleted when a new one is set. Properties of the \a theme can be modified even after setting
 * it, and the modifications take effect immediately.
 */
void Q3DScatter::setTheme(Q3DTheme *theme)
{
    dptr()->m_shared->setTheme(theme);
}

Q3DTheme *Q3DScatter::theme() const
{
    return dptrc()->m_shared->theme();
}

/*!
 * \property Q3DScatter::selectionMode
 *
 * Sets item selection \a mode to a combination of \c QDataVis::SelectionFlags. It is preset to
 * \c QDataVis::SelectionItem by default.
 *
 * \note Only \c QDataVis::SelectionItem and \c QDataVis::SelectionNone are supported.
 */
void Q3DScatter::setSelectionMode(QDataVis::SelectionFlags mode)
{
    dptr()->m_shared->setSelectionMode(mode);
}

QDataVis::SelectionFlags Q3DScatter::selectionMode() const
{
    return dptrc()->m_shared->selectionMode();
}

/*!
 * \property Q3DScatter::scene
 *
 * This property contains the read only Q3DScene that can be used to access e.g. camera object.
 */
Q3DScene *Q3DScatter::scene() const
{
    return dptrc()->m_shared->scene();
}

/*!
 * \property Q3DScatter::shadowQuality
 *
 * Sets shadow \a quality to one of \c QDataVis::ShadowQuality. It is preset to
 * \c QDataVis::ShadowQualityMedium by default.
 *
 * \note If setting QDataVis::ShadowQuality of a certain level fails, a level is lowered
 * until it is successful and shadowQualityChanged signal is emitted for each time the change is
 * done.
 */
void Q3DScatter::setShadowQuality(QDataVis::ShadowQuality quality)
{
    return dptr()->m_shared->setShadowQuality(quality);
}

QDataVis::ShadowQuality Q3DScatter::shadowQuality() const
{
    return dptrc()->m_shared->shadowQuality();
}

/*!
 * Sets a user-defined X-axis. Implicitly calls addAxis() to transfer ownership
 * of the \a axis to this graph.
 *
 * If the \a axis is null, a temporary default axis with no labels and automatically adjusting
 * range is created.
 * This temporary axis is destroyed if another \a axis is set explicitly to the same orientation.
 *
 * \sa addAxis(), releaseAxis()
 */
void Q3DScatter::setAxisX(Q3DValueAxis *axis)
{
    dptr()->m_shared->setAxisX(axis);
}

/*!
 * \return used X-axis.
 */
Q3DValueAxis *Q3DScatter::axisX() const
{
    return static_cast<Q3DValueAxis *>(dptrc()->m_shared->axisX());
}

/*!
 * Sets a user-defined Y-axis. Implicitly calls addAxis() to transfer ownership
 * of the \a axis to this graph.
 *
 * If the \a axis is null, a temporary default axis with no labels and automatically adjusting
 * range is created.
 * This temporary axis is destroyed if another \a axis is set explicitly to the same orientation.
 *
 * \sa addAxis(), releaseAxis()
 */
void Q3DScatter::setAxisY(Q3DValueAxis *axis)
{
    dptr()->m_shared->setAxisY(axis);
}

/*!
 * \return used Y-axis.
 */
Q3DValueAxis *Q3DScatter::axisY() const
{
    return static_cast<Q3DValueAxis *>(dptrc()->m_shared->axisY());
}

/*!
 * Sets a user-defined Z-axis. Implicitly calls addAxis() to transfer ownership
 * of the \a axis to this graph.
 *
 * If the \a axis is null, a temporary default axis with no labels and automatically adjusting
 * range is created.
 * This temporary axis is destroyed if another \a axis is set explicitly to the same orientation.
 *
 * \sa addAxis(), releaseAxis()
 */
void Q3DScatter::setAxisZ(Q3DValueAxis *axis)
{
    dptr()->m_shared->setAxisZ(axis);
}

/*!
 * \return used Z-axis.
 */
Q3DValueAxis *Q3DScatter::axisZ() const
{
    return static_cast<Q3DValueAxis *>(dptrc()->m_shared->axisZ());
}

/*!
 * Adds \a axis to the graph. The axes added via addAxis are not yet taken to use,
 * addAxis is simply used to give the ownership of the \a axis to the graph.
 * The \a axis must not be null or added to another graph.
 *
 * \sa releaseAxis(), setAxisX(), setAxisY(), setAxisZ()
 */
void Q3DScatter::addAxis(Q3DValueAxis *axis)
{
    dptr()->m_shared->addAxis(axis);
}

/*!
 * Releases the ownership of the \a axis back to the caller, if it is added to this graph.
 * If the released \a axis is in use, a new default axis will be created and set active.
 *
 * If the default axis is released and added back later, it behaves as any other axis would.
 *
 * \sa addAxis(), setAxisX(), setAxisY(), setAxisZ()
 */
void Q3DScatter::releaseAxis(Q3DValueAxis *axis)
{
    dptr()->m_shared->releaseAxis(axis);
}

/*!
 * \return list of all added axes.
 *
 * \sa addAxis()
 */
QList<Q3DValueAxis *> Q3DScatter::axes() const
{
    QList<Q3DAbstractAxis *> abstractAxes = dptrc()->m_shared->axes();
    QList<Q3DValueAxis *> retList;
    foreach (Q3DAbstractAxis *axis, abstractAxes)
        retList.append(static_cast<Q3DValueAxis *>(axis));

    return retList;
}

/*!
 * \fn void Q3DScatter::shadowQualityChanged(QDataVis::ShadowQuality quality)
 *
 * This signal is emitted when shadow \a quality changes.
 */

Q3DScatterPrivate::Q3DScatterPrivate(Q3DScatter *q)
    : Q3DWindowPrivate(q)
{
}

Q3DScatterPrivate::~Q3DScatterPrivate()
{
    delete m_shared;
}

void Q3DScatterPrivate::handleShadowQualityUpdate(QDataVis::ShadowQuality quality)
{
    emit qptr()->shadowQualityChanged(quality);
}

Q3DScatter *Q3DScatterPrivate::qptr()
{
    return static_cast<Q3DScatter *>(q_ptr);
}

QT_DATAVISUALIZATION_END_NAMESPACE