2.12.2021, 9:00 - 11:00: Due to updates GitLab may be unavailable for some minutes between 09:00 and 11:00.

geometry2dtransferfunctioneditor.cpp 13.5 KB
Newer Older
1
2
// ================================================================================================
// 
schultezub's avatar
schultezub committed
3
// This file is part of the CAMPVis Software Framework.
4
5
// 
// If not explicitly stated otherwise: Copyright (C) 2012, all rights reserved,
schultezub's avatar
schultezub committed
6
//      Christian Schulte zu Berge <christian.szb@in.tum.de>
7
//      Chair for Computer Aided Medical Procedures
8
9
//      Technische Universität München
//      Boltzmannstr. 3, 85748 Garching b. München, Germany
schultezub's avatar
schultezub committed
10
// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// 
// The licensing of this softare is not yet resolved. Until then, redistribution in source or
// binary forms outside the CAMP chair is not permitted, unless explicitly stated in legal form.
// However, the names of the original authors and the above copyright notice must retain in its
// original state in any case.
// 
// Legal disclaimer provided by the BSD license:
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
// AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
// 
// ================================================================================================

#include "geometry2dtransferfunctioneditor.h"

#include "tgt/assert.h"
#include "tgt/shadermanager.h"
34
#include "tgt/glcontextmanager.h"
35
36
37
38
39
40
#include "tgt/qt/qtthreadedcanvas.h"

#include "application/gui/qtcolortools.h"
#include "application/gui/properties/tfgeometrymanipulator.h"

#include "core/classification/geometry2dtransferfunction.h"
schultezub's avatar
schultezub committed
41
#include "core/classification/tfgeometry2d.h"
42
#include "core/datastructures/imagerepresentationlocal.h"
43
44
45
46
47
48
49
50
#include "core/properties/transferfunctionproperty.h"
#include "core/tools/opengljobprocessor.h"

#include <QGridLayout>
#include <QLabel>
#include <QPushButton>
#include <QVBoxLayout>

schultezub's avatar
schultezub committed
51
namespace campvis {
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

    Geometry2DTransferFunctionEditor::Geometry2DTransferFunctionEditor(Geometry2DTransferFunction* tf, QWidget* parent /*= 0*/)
        : AbstractTransferFunctionEditor(tf, parent)
        , _layout(0)
        , _canvas(0)
        , _lblIntensityLeft(0)
        , _lblIntensityRight(0)
        , _btnAddGeometry(0)
    {
        _selectedGeometry = 0;
        setupGUI();
        tf->s_geometryCollectionChanged.connect(this, &Geometry2DTransferFunctionEditor::onGeometryCollectionChanged);
        updateManipulators();
        setEventTypes(tgt::Event::MOUSEPRESSEVENT);
    }

    Geometry2DTransferFunctionEditor::~Geometry2DTransferFunctionEditor() {
        tbb::mutex::scoped_lock lock(_localMutex);

        // clear and delete former stuff
        _selectedGeometry = 0;
        for (std::vector<AbstractTFGeometryManipulator*>::iterator it = _manipulators.begin(); it != _manipulators.end(); ++it) {
            if (WholeTFGeometryManipulator* tester = dynamic_cast<WholeTFGeometryManipulator*>(*it)) {
                tester->s_selected.disconnect(this);
            }
            delete *it;
        }

        Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);
        gtf->s_geometryCollectionChanged.disconnect(this);
82
83
84
85
86

        if (OpenGLJobProcessor::isInited())
            GLJobProc.deregisterContext(_canvas);
        if (tgt::GlContextManager::isInited())
            tgt::GlContextManager::getRef().removeContext(_canvas);
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
    }

    void Geometry2DTransferFunctionEditor::updateWidgetFromProperty() {
        Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);
        _lblIntensityLeft->setText(QString::number(gtf->getIntensityDomain().x));
        _lblIntensityRight->setText(QString::number(gtf->getIntensityDomain().y));
        invalidate();
    }

    void Geometry2DTransferFunctionEditor::paint() {
        Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);
        const std::vector<TFGeometry2D*>& geometries = gtf->getGeometries();
        const tgt::vec2& intensityDomain = gtf->getIntensityDomain();

        // TODO: get rid of intermediate mode?
        glPushAttrib(GL_ALL_ATTRIB_BITS);
        glEnable(GL_BLEND);
        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glViewport(0, 0, _canvas->width(), _canvas->height());

        glMatrixMode(GL_PROJECTION);
        glPushMatrix();
        glOrtho(0, 1 , 0, 1, -1, 1);
        glClearColor(1.f, 1.f, 1.f, 1.f);
        glClear(GL_COLOR_BUFFER_BIT);
        LGL_ERROR;

        // renderIntoEditor TF geometries
115
116
117
118
119
        {
            tbb::mutex::scoped_lock lock(_localMutex);
            for (std::vector<TFGeometry2D*>::const_iterator it = geometries.begin(); it != geometries.end(); ++it) {
                (*it)->render();
            }
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
        }

        // render histogram if existent
        const AbstractTransferFunction::IntensityHistogramType* ih = gtf->getIntensityHistogram();
        if (ih != 0) {
            size_t numBuckets = ih->getNumBuckets(0);
            if (numBuckets > 0) {
                float maxFilling = static_cast<float>(ih->getMaxFilling());

                float xl = static_cast<float>(0.f) / static_cast<float>(numBuckets);
                float xr = 0.f;
                float yl = static_cast<float>(ih->getNumElements(0)) / maxFilling;
                float yr = 0.f;

                glBegin(GL_QUADS);
                glColor4f(1.f, .75f, 0.f, .5f);
                for (size_t i = 1; i < numBuckets; ++i) {
                    xr = static_cast<float>(i) / static_cast<float>(numBuckets);
                    yr = static_cast<float>(ih->getNumElements(i)) / maxFilling;

                    glVertex2f(xl, 0.f);
                    glVertex2f(xl, yl);
                    glVertex2f(xr, yr);
                    glVertex2f(xr, 0.f);

                    xl = xr;
                    yl = yr;
                }
                glEnd();
            }
        }

        {
            tbb::mutex::scoped_lock lock(_localMutex);

            // render selected geometry
            if (_selectedGeometry != 0) {
                const std::vector<tgt::vec2>& helperPoints = _selectedGeometry->getHelperPoints();
                glColor4ub(0, 0, 0, 196);
                glEnable(GL_LINE_STIPPLE);
                glLineStipple(1, 0xFAFA);
                glBegin(GL_LINE_LOOP);
                for (std::vector<tgt::vec2>::const_iterator it = helperPoints.begin(); it != helperPoints.end(); ++it)
                    glVertex2fv(it->elem);
                glEnd();
                glDisable(GL_LINE_STIPPLE);
            }

            glPopMatrix();

            glPushMatrix();
            glOrtho(0, _canvas->width(), 0, _canvas->height(), -1, 1);
            // render manipulators
            for (std::vector<AbstractTFGeometryManipulator*>::iterator it = _manipulators.begin(); it != _manipulators.end(); ++it) {
                (*it)->render();
            }
            glPopMatrix();
        }

        LGL_ERROR;
        glPopAttrib();
    }

    void Geometry2DTransferFunctionEditor::sizeChanged(const tgt::ivec2& size) {
        tbb::mutex::scoped_lock lock(_localMutex);
        for (std::vector<AbstractTFGeometryManipulator*>::iterator it = _manipulators.begin(); it != _manipulators.end(); ++it) {
            (*it)->setViewportSize(size);
        }
        invalidate();
    }

    void Geometry2DTransferFunctionEditor::mousePressEvent(tgt::MouseEvent* e) {
        if (_selectedGeometry != 0 && e->modifiers() & tgt::Event::CTRL) {
//             TFGeometry2D* g = _selectedGeometry->getGeometry();
//             std::vector<TFGeometry2D::KeyPoint>& kpts = g->getKeyPoints();
//             TFGeometry2D::KeyPoint kp(static_cast<float>(e->x()) / static_cast<float>(_canvas->width()), tgt::col4(255));
//             std::vector<TFGeometry2D::KeyPoint>::const_iterator lb = std::upper_bound(kpts.begin(), kpts.end(), kp);
//             if (lb != kpts.end()) {
//                 kp._color = lb->_color;
//             }
//             else {
//                 kp._color = kpts.back()._color;
//             }
//             float alpha = tgt::clamp(static_cast<float>(_canvas->height() - e->y()) / static_cast<float>(_canvas->height()), 0.f, 1.f);
//             kp._color.a = static_cast<uint8_t>(alpha * 255.f);
//             kpts.insert(lb, kp);
//             updateManipulators();
//             g->s_changed();
        }
        else {
            _selectedGeometry = 0;
            invalidate();
            e->ignore();
        }
    }

216
217
218
219
    void Geometry2DTransferFunctionEditor::repaint() {
        invalidate();
    }

220
    void Geometry2DTransferFunctionEditor::invalidate() {
221
        GLJobProc.enqueueJob(_canvas, makeJobOnHeap(this, &Geometry2DTransferFunctionEditor::paint), OpenGLJobProcessor::PaintJob);
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
    }

    void Geometry2DTransferFunctionEditor::setupGUI() {
        Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);

        _layout = new QGridLayout(this);
        setLayout(_layout);

        QLabel* lblOpacityTop = new QLabel(tr("100%"), this);
        _layout->addWidget(lblOpacityTop, 1, 0, 1, 1, Qt::AlignRight);
        QLabel* lblOpacity = new QLabel(tr("Opacity"), this);
        _layout->addWidget(lblOpacity, 2, 0, 1, 1, Qt::AlignRight);
        QLabel* lblOpacityBottom = new QLabel(tr("0%"), this);
        _layout->addWidget(lblOpacityBottom, 3, 0, 1, 1, Qt::AlignRight);

237
238
239
        _canvas = dynamic_cast<tgt::QtThreadedCanvas*>(tgt::GlContextManager::getRef().createContext("tfcanvas ", "", tgt::ivec2(256, 128), tgt::GLCanvas::RGBA_BUFFER, false));
        tgtAssert(_canvas != 0, "Could not cast to QtThreadedCanvas*, something is wrong here!");

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
        GLJobProc.registerContext(_canvas);
        _canvas->setPainter(this, false);
        _layout->addWidget(_canvas, 1, 1, 3, 3);

        _lblIntensityLeft = new QLabel(QString::number(gtf->getIntensityDomain().x), this);
        _layout->addWidget(_lblIntensityLeft, 4, 1, 1, 1, Qt::AlignLeft);
        QLabel* lblIntensity = new QLabel(tr("Intensity"), this);
        _layout->addWidget(lblIntensity, 4, 2, 1, 1, Qt::AlignHCenter);
        _lblIntensityRight = new QLabel(QString::number(gtf->getIntensityDomain().y), this);
        _layout->addWidget(_lblIntensityRight, 4, 3, 1, 1, Qt::AlignRight);

        QVBoxLayout* buttonLayout = new QVBoxLayout(); // TODO: check whether buttonLayout will be deleted by Qt's GC!
        _layout->addLayout(buttonLayout, 1, 4, 1, 3, Qt::AlignTop);

        _btnAddGeometry = new QPushButton(tr("Add Geometry"), this);
        buttonLayout->addWidget(_btnAddGeometry);
        connect(_btnAddGeometry, SIGNAL(clicked()), this, SLOT(onBtnAddGeometryClicked()));
        _btnRemoveGeometry = new QPushButton(tr("Remove Geometry"), this);
        buttonLayout->addWidget(_btnRemoveGeometry);
        connect(_btnRemoveGeometry, SIGNAL(clicked()), this, SLOT(onBtnRemoveGeometryClicked()));

        _layout->setColumnStretch(2, 1);
        _layout->setRowStretch(2, 1);
    }

    void Geometry2DTransferFunctionEditor::updateManipulators() {
        tbb::mutex::scoped_lock lock(_localMutex);

268
        _canvas->getEventHandler()->addEventListenerToFront(this);
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
    }

    void Geometry2DTransferFunctionEditor::onGeometryCollectionChanged() {
        updateManipulators();
    }

    void Geometry2DTransferFunctionEditor::onWholeTFGeometryManipulatorSelected(WholeTFGeometryManipulator* wtf /* :) */) {
        _selectedGeometry = wtf;
        invalidate();
    }

    void Geometry2DTransferFunctionEditor::onBtnAddGeometryClicked() {
        Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);
        gtf->addGeometry(TFGeometry2D::createQuad(tgt::vec2(.4f, .6f), tgt::vec2(0.f, .4f), tgt::col4(196)));
    }

    void Geometry2DTransferFunctionEditor::onBtnRemoveGeometryClicked() {
        if (_selectedGeometry != 0) {
            // to get the signal-slots disconnected in the correct order and avoid double deletion,
            // this is getting a little messy and cumbersome:
//             Geometry2DTransferFunction* gtf = static_cast<Geometry2DTransferFunction*>(_transferFunction);
//             TFGeometry2D* geometryToRemove = _selectedGeometry->getGeometry();
// 
//             {
//                 tbb::mutex::scoped_lock lock(_localMutex);
// 
//                 for (std::vector<AbstractTFGeometryManipulator*>::iterator it = _manipulators.begin(); it != _manipulators.end(); ++it) {
//                     if (*it == _selectedGeometry) {
//                         _manipulators.erase(it);
//                         break;
//                     }
//                 }
//                 delete _selectedGeometry;
//                 _selectedGeometry = 0;
//             }
// 
//             gtf->removeGeometry(geometryToRemove);
        }
    }


310
}