Render_alternate.cpp 26.6 KB
Newer Older
1 2 3 4 5 6 7 8
/*
** This file is part of the ViTE project.
**
** This software is governed by the CeCILL-A license under French law
** and abiding by the rules of distribution of free software. You can
** use, modify and/or redistribute the software under the terms of the
** CeCILL-A license as circulated by CEA, CNRS and INRIA at the following
** URL: "http://www.cecill.info".
Thibault Soucarre's avatar
Thibault Soucarre committed
9
**
10 11 12 13 14
** As a counterpart to the access to the source code and rights to copy,
** modify and redistribute granted by the license, users are provided
** only with a limited warranty and the software's author, the holder of
** the economic rights, and the successive licensors have only limited
** liability.
Thibault Soucarre's avatar
Thibault Soucarre committed
15
**
16 17 18 19 20 21 22 23 24 25
** In this respect, the user's attention is drawn to the risks associated
** with loading, using, modifying and/or developing or reproducing the
** software by the user in light of its specific status of free software,
** that may mean that it is complicated to manipulate, and that also
** therefore means that it is reserved for developers and experienced
** professionals having in-depth computer knowledge. Users are therefore
** encouraged to load and test the software's suitability as regards
** their requirements in conditions enabling the security of their
** systems and/or data to be ensured and, more generally, to use and
** operate it in the same conditions as regards security.
Thibault Soucarre's avatar
Thibault Soucarre committed
26
**
27 28 29 30 31 32 33 34 35 36 37 38 39
** The fact that you are presently reading this means that you have had
** knowledge of the CeCILL-A license and that you accept its terms.
**
**
** ViTE developers are (for version 0.* to 1.0):
**
**        - COULOMB Kevin
**        - FAVERGE Mathieu
**        - JAZEIX Johnny
**        - LAGRASSE Olivier
**        - MARCOUEILLE Jule
**        - NOISETTE Pascal
**        - REDONDY Arthur
Thibault Soucarre's avatar
Thibault Soucarre committed
40
**        - VUCHENER Clément
41 42 43 44 45 46 47 48
**
*/
/*!
 *\file Render_alternate.cpp
 */


#include "common/common.hpp"
49
#include "common/Info.hpp"
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
/* -- */
//#include "render/render.hpp"

#include <GL/glew.h>
#include "render/Hook_event.hpp"

#include "render/Render_alternate.hpp"
/* -- */

#include "interface/resource.hpp"
//#include "interface/interface.hpp"
#include "render/Render.hpp"
#include "core/Core.hpp"
/* -- */

#include "vbo.hpp"


using namespace std;


#define message *Message::get_instance() << "(" << __FILE__ << " l." << __LINE__ << "): "

static bool _draw_container;
static bool _draw_ruler;
static bool _draw_arrow;
static bool _draw_event;
const int Render_alternate::DRAWING_TIMER_DEFAULT = 10;

/***********************************
 *
 *
 *
 * Constructor and destructor.
 *
 *
 *
 **********************************/

Render_alternate::Render_alternate(Core* core, QWidget *parent, const QGLFormat& format)
    : Hook_event((Render_opengl*)this, core, parent, format){

    _arrows.clear();
    _circles.clear();
    _texts.clear();
    _vbos.clear();


Thibault Soucarre's avatar
Thibault Soucarre committed
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
    setAutoFillBackground(false);
}


Render_alternate::~Render_alternate(){
}

/***********************************
 *
 *
 *
 * Default QGLWidget functions.
 *
 *
 *
 **********************************/

void  Render_alternate::initializeGL() {
    glClearColor(0.5f, 0.5f, 0.55f, 1.0f);

    glEnable(GL_DEPTH_TEST);

    glClearStencil(0);
}

void  Render_alternate::resizeGL(int width, int height) {
    glViewport(0, 0, width, height);
Thibault Soucarre's avatar
Thibault Soucarre committed
126

127 128 129
    /* update informations about widget size */
    Info::Screen::width  = width;
    Info::Screen::height = height;
Thibault Soucarre's avatar
Thibault Soucarre committed
130

131 132 133 134
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();


Thibault Soucarre's avatar
Thibault Soucarre committed
135

136 137
    if(DRAWING_STATE_WAITING == _state){// A wait is drawn
        glOrtho(-50, 50, -50, 50, 0, 1000);
Thibault Soucarre's avatar
Thibault Soucarre committed
138
    }else if (DRAWING_STATE_DRAWING == _state){// A trace is drawn
139 140 141 142
        glOrtho(0, Info::Render::width, 0, Info::Render::height, 0, -1000);
    }else{
        message << tr("Undefined value for the drawing state attribute - Render area").toStdString() << Message::ende;
    }
Thibault Soucarre's avatar
Thibault Soucarre committed
143

144 145 146 147 148 149

    glMatrixMode(GL_MODELVIEW);
}


void  Render_alternate::paintGL(){
Thibault Soucarre's avatar
Thibault Soucarre committed
150

151 152 153
    resizeGL(Render_alternate::QGLWidget::width(), Render_alternate::QGLWidget::height());
    Render_alternate::QGLWidget::setFocus(Qt::ActiveWindowFocusReason);/* give the focus to the render area for mouse and keyboard events */

Thibault Soucarre's avatar
Thibault Soucarre committed
154

155 156 157 158 159
    glClearDepth(1.0);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glLoadIdentity();

Thibault Soucarre's avatar
Thibault Soucarre committed
160

161
    if(DRAWING_STATE_WAITING == _state){/* A wait is drawn */
Thibault Soucarre's avatar
Thibault Soucarre committed
162

163 164 165
        /* turn around y axis */
        _wait_angle+=0.1f;
        if (_wait_angle>=360) _wait_angle=0.0f;
Thibault Soucarre's avatar
Thibault Soucarre committed
166

167
        glPushMatrix();
Thibault Soucarre's avatar
Thibault Soucarre committed
168

169
        glScalef(15, 15, 0);
Thibault Soucarre's avatar
Thibault Soucarre committed
170

171 172
        glRotatef(-_wait_angle,0, 1, 0);
        glRotatef(_wait_angle_y, 1, 0, 0);
Thibault Soucarre's avatar
Thibault Soucarre committed
173

174 175

        glPopMatrix();
Thibault Soucarre's avatar
Thibault Soucarre committed
176 177


178 179 180 181 182
    }else if (DRAWING_STATE_DRAWING == _state){/* A trace is drawn */
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();

        glPushMatrix();
Thibault Soucarre's avatar
Thibault Soucarre committed
183
        {
184
            glTranslated(0.0, Info::Render::height, 100.0);
Thibault Soucarre's avatar
Thibault Soucarre committed
185 186
            glRotated(180.0, 1.0, 0.0, 0.0);

187 188 189

            glPushMatrix();
            {
Thibault Soucarre's avatar
Thibault Soucarre committed
190

191 192 193
                glTranslated(_default_entity_x_translate - _x_state_translate, _ruler_y + _ruler_height - _y_state_translate, 0.0);
                glScalef(_x_state_scale, _y_state_scale, 1.0);

Thibault Soucarre's avatar
Thibault Soucarre committed
194
                for (unsigned int i=0 ;
195 196 197 198 199
                     i<_vbos.size()   ;
                     i++){
                    _vbos[i]->display();
                }
            }
Thibault Soucarre's avatar
Thibault Soucarre committed
200
            glPopMatrix();
201 202 203 204 205 206

            call_ruler();


             if (false == Info::Render::_no_arrows)/* display arrows */
                 draw_stored_arrows();
Thibault Soucarre's avatar
Thibault Soucarre committed
207

208 209
             if (false == Info::Render::_no_events)/* display events */
                 draw_stored_circles();
Thibault Soucarre's avatar
Thibault Soucarre committed
210

211 212 213 214 215 216
        }
        glPopMatrix();

        glPushMatrix();
        {
            glTranslated(0.0,  0.0, 100.0);/* not accurate */
Thibault Soucarre's avatar
Thibault Soucarre committed
217

218
            if (_mouse_pressed){
Thibault Soucarre's avatar
Thibault Soucarre committed
219 220


221
                glTranslated(0.0, 0.0, _z_container_under);
Thibault Soucarre's avatar
Thibault Soucarre committed
222

223
                Element_pos old_x, old_y, new_x, new_y;
Thibault Soucarre's avatar
Thibault Soucarre committed
224 225


226 227 228 229 230 231 232

                old_x = _mouse_x*(Info::Render::width/Info::Screen::width);
                old_y =  Info::Render::height - _mouse_y*(Info::Render::height/Info::Screen::height);
                new_x = _new_mouse_x*(Info::Render::width/Info::Screen::width);
                new_y =  Info::Render::height - _new_mouse_y*(Info::Render::height/Info::Screen::height);

#ifdef DEBUG_MODE_RENDER_OPENGL
Thibault Soucarre's avatar
Thibault Soucarre committed
233 234 235

                cerr << __FILE__ << " l." << __LINE__ << ":" << endl;
                cerr << "Selection rectangle position: (" << old_x << ", " << old_y << ") - (" << new_x << ", " << new_y << ")" << endl;
236
#endif
Thibault Soucarre's avatar
Thibault Soucarre committed
237

238
                glEnable(GL_BLEND);
Thibault Soucarre's avatar
Thibault Soucarre committed
239 240
                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

241 242 243 244 245 246 247 248 249
                /* Square for selection */
                glBegin(GL_QUADS);
                {
                    glColor4d(0.9, 1.0, 0.9, _selection_rectangle_alpha);glVertex2d(old_x, old_y);
                    glColor4d(0.9, 0.9, 0.9, _selection_rectangle_alpha);glVertex2d(old_x, new_y);
                    glColor4d(0.9, 0.9, 0.9, _selection_rectangle_alpha);glVertex2d(new_x, new_y);
                    glColor4d(0.9, 0.9, 0.9, _selection_rectangle_alpha);glVertex2d(new_x, old_y);
                }
                glEnd();
Thibault Soucarre's avatar
Thibault Soucarre committed
250

251
                glDisable(GL_BLEND);
Thibault Soucarre's avatar
Thibault Soucarre committed
252

253 254 255 256 257 258 259 260 261
            }/* end  if (true==_mouse_pressed) */
        }
        glPopMatrix();



    }else{
        message << tr("Undefined value for the drawing state attribute - Render area").toStdString() << Message::ende;
    }
Thibault Soucarre's avatar
Thibault Soucarre committed
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
    glFlush();


    /* Check the errors */
    GLenum glerror;
    glerror = glGetError();
    if(glerror != GL_NO_ERROR)
        message << tr("Render area : the following OpengGL error occured: ").toStdString() << (char *)gluErrorString(glerror) << Message::endw;



    if(DRAWING_STATE_WAITING == _state)/* A wait is drawn, do not take car about the ruler drawing */
        return;

    QFont arial_font = QFont("Arial", 10);
    qglColor(Qt::white);//QColor(0, 0, 0));


    /* Draw container text */
    const unsigned int texts_size = _texts.size();
    for (unsigned int i=0 ; i<texts_size ; i++){
        const QFontMetrics metric(arial_font);
        const QString text_elided = metric.elidedText(_texts[i].value.c_str(), Qt::ElideRight, _x_scale_container_state*Info::Screen::width/3.);
        renderText ( render_to_screen_x(_texts[i].x * _x_scale_container_state/0.20),
                     render_to_screen_y( trace_to_render_y(_texts[i].y) + 0.5),
                     text_elided,
                     arial_font);
    }

    /* Draw ruler text */
    std::ostringstream buf_txt;
    Element_pos graduation_diff;
    Element_pos coeff_prefix;
    graduation_diff = Ruler::get_graduation_diff(Info::Render::_x_min_visible, Info::Render::_x_max_visible);
    coeff_prefix    = Ruler::get_coeff_for_common_prefix(Info::Render::_x_min_visible, Info::Render::_x_max_visible);

    //    painter.setFont(QFont("Arial", 14));

    arial_font.setPointSize(14);

    buf_txt.str("");/* flush the buffer */
    buf_txt << "min: " << (double)Info::Render::_x_min_visible;

    renderText (render_to_screen_x(trace_to_render_x(Info::Render::_x_min_visible)),
                render_to_screen_y(3),
                buf_txt.str().c_str(),
                arial_font);

    buf_txt.str("");/* flush the buffer */
    buf_txt << "max: " << (double)Info::Render::_x_max_visible;

    renderText (render_to_screen_x(trace_to_render_x(Info::Render::_x_max_visible))-130,
                render_to_screen_y(3),
                buf_txt.str().c_str(),
                arial_font);

    buf_txt.str("");
    buf_txt << Ruler::get_common_part_string(Info::Render::_x_min_visible, coeff_prefix) << "--";

    renderText (render_to_screen_x(
                                   trace_to_render_x(
Thibault Soucarre's avatar
Thibault Soucarre committed
324 325
                                                     (Info::Render::_x_min_visible +
                                                      Info::Render::_x_max_visible) / 2)),
326 327 328 329 330 331
                render_to_screen_y(3),
                buf_txt.str().c_str(),
                arial_font);

    arial_font.setPointSize(10);

Thibault Soucarre's avatar
Thibault Soucarre committed
332 333
    for (Element_pos i = Info::Render::_x_min_visible ;
         i < Info::Render::_x_max_visible ;
334 335 336 337
         i+=graduation_diff){

        buf_txt.str("");/* flush the buffer */
        buf_txt << Ruler::get_variable_part(i, coeff_prefix, 2);
Thibault Soucarre's avatar
Thibault Soucarre committed
338

339 340 341 342
        renderText (render_to_screen_x(trace_to_render_x(i)+1),
                    render_to_screen_y(8),
                    buf_txt.str().c_str(),
                    arial_font);
Thibault Soucarre's avatar
Thibault Soucarre committed
343
    }
344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362
}





/***********************************
 *
 *
 *
 * Building functions.
 *
 *
 *
 **********************************/



bool Render_alternate::build(){
Thibault Soucarre's avatar
Thibault Soucarre committed
363

364 365 366 367 368 369 370 371 372 373 374 375
    _state = DRAWING_STATE_DRAWING;/* change the drawing state */

    /* disable some OpenGL features to enhance the rendering */
    glDisable(GL_TEXTURE_2D);
    glDisable(GL_BLEND);

    replace_scale(1);/* for states scaling */
    _x_state_translate = 0;/* for states translation */
    _y_state_scale = 1;/* for states scaling */
    _y_state_translate = 0;/* for states translation */
    _x_scroll_pos = 0;/* horizontal bar placed on 0 */
    _y_scroll_pos = 0;/* vertical bar placed on 0 */
Thibault Soucarre's avatar
Thibault Soucarre committed
376

377 378 379 380 381 382 383 384 385
    if (NULL == _render_instance)
        return true;

    return true;
}



bool Render_alternate::unbuild(){
Thibault Soucarre's avatar
Thibault Soucarre committed
386

387 388 389 390 391 392 393 394 395
    /**********************
     *
     * Init OpenGL features
     *
     **********************/

    /* enable some OpenGL features*/
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
Thibault Soucarre's avatar
Thibault Soucarre committed
396

397 398
    glEnable(GL_TEXTURE_2D);

Thibault Soucarre's avatar
Thibault Soucarre committed
399
    glEnable(GL_BLEND);/* enable blending for the alpha color */
400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    glColor3d(1.0, 1.0, 1.0);/* init color to white */


    /*****************************
     *
     * Init render area attributes
     *
     *****************************/

    _state = DRAWING_STATE_WAITING;/* change the drawing state */

    _wait_angle=0.0f;/* begin with 0 rad angle */
    _wait_angle_y=0.0f;/* begin with 0 rad angle */

Thibault Soucarre's avatar
Thibault Soucarre committed
416
    /* init measurement attributes */
417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
    Info::Container::x_max = 0;
    Info::Container::y_max = 0;
    Info::Container::x_min = 0;
    Info::Container::y_min = 0;

    //    Info::Render::_ui_render_min_value->setText("");
    // Info::Render::_ui_render_max_value->setText("");

    Info::Entity::x_max = 0;
    Info::Entity::x_min = 0;
    //    _state_x_max = 0;
    _state_y_max = 0;
    //    _state_x_min = 0;
    _state_y_min = 0;

    /* clear lists to store container texts */
    _text_pos.clear();
    _text_value.clear();

    _arrows.clear();
    _circles.clear();
    _texts.clear();

Thibault Soucarre's avatar
Thibault Soucarre committed
440
    for (unsigned int i=0 ;
441 442 443 444 445 446 447 448 449 450 451
         i<_vbos.size()   ;
         i++){
        delete _vbos[i];
    }
    _vbos.clear();

    /* clear the event vector */
    // _events.clear();

    /* clear the arrow vector */
    // _arrows.clear();
Thibault Soucarre's avatar
Thibault Soucarre committed
452

453 454 455 456 457 458 459 460 461 462
    /* empty the selection stack */
    while(false == _previous_selection.empty())
        _previous_selection.pop();

    if (NULL == _render_instance)
        return true;

    /* Now, timer is set */
    if (_wait_timer == NULL){
        _wait_angle = 0.0f;
Thibault Soucarre's avatar
Thibault Soucarre committed
463

464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492
        /*  _wait_timer = new QTimer(this);
        connect(_wait_timer, SIGNAL(timeout()), _render_instance, SLOT(updateGL()));
        _wait_timer->start(_wait_spf);*/
    }


    return true;//_render_instance->display_unbuild();
}





/***********************************
 *
 *
 *
 * Drawing function for the wait screen.
 *
 *
 *
 **********************************/



GLuint Render_alternate::draw_wait() {
    GLuint object;
    GLuint texture;

Thibault Soucarre's avatar
Thibault Soucarre committed
493 494
    glGenTextures(1, &texture);/* create the texture and link it with the list previously created */

495
    QFile texture_file(QString(":/img/img/logo") +  QDate::currentDate().toString("MMdd") + QString(".png"));
Thibault Soucarre's avatar
Thibault Soucarre committed
496

497 498 499 500 501
    if (true == texture_file.exists())/* The texture exists */
        texture = bindTexture(QPixmap(texture_file.fileName()), GL_TEXTURE_2D);
    else/* use the default picture */
        texture = bindTexture(QPixmap(":/img/img/logo.png"), GL_TEXTURE_2D);

Thibault Soucarre's avatar
Thibault Soucarre committed
502

503 504 505
    /* apply some parameters on the texture */
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
Thibault Soucarre's avatar
Thibault Soucarre committed
506

507 508
    glEnable(GL_TEXTURE_2D);

Thibault Soucarre's avatar
Thibault Soucarre committed
509
    glEnable(GL_BLEND);/* enable blending for the alpha color */
510 511
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

Thibault Soucarre's avatar
Thibault Soucarre committed
512

513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535
    /* Now, timer is set */
    if (_wait_timer == NULL){
        _wait_angle = 0.0f;
        /*
        _wait_timer = new QTimer(this);
        connect(_wait_timer, SIGNAL(timeout()), _render_instance, SLOT(updateGL()));
        _wait_timer->start(_wait_spf);*/
    }

    return object;
}





void Render_alternate::call_ruler(){
    Element_pos graduation_diff;
    Element_pos coeff_prefix;
    const Element_pos offset_x = _default_entity_x_translate;
    const Element_pos offset_y = _ruler_y + _ruler_height+3.5;

    update_visible_interval_value();
Thibault Soucarre's avatar
Thibault Soucarre committed
536

537 538
    graduation_diff = Ruler::get_graduation_diff(Info::Render::_x_min_visible, Info::Render::_x_max_visible);
    coeff_prefix    = Ruler::get_coeff_for_common_prefix(Info::Render::_x_min_visible, Info::Render::_x_max_visible);
Thibault Soucarre's avatar
Thibault Soucarre committed
539

540
    set_color(1.0, 1.0, 1.0);
Thibault Soucarre's avatar
Thibault Soucarre committed
541

542 543 544 545 546 547 548 549 550 551
    for (Element_pos i = Info::Render::_x_min_visible ; i < Info::Render::_x_max_visible ; i+=graduation_diff){
        const Element_pos grad_div_by_5 = graduation_diff/5;
        for (Element_pos j = (i+grad_div_by_5) ; j<(i+graduation_diff) ; j+= grad_div_by_5){
            draw_line( trace_to_render_x(j) + offset_x, offset_y  ,
                       trace_to_render_x(j) + offset_x, 2+offset_y, _z_ruler);
        }

        draw_line( trace_to_render_x(i) + offset_x, offset_y-1  ,
                   trace_to_render_x(i) + offset_x, 4+offset_y, _z_ruler);
    }
Thibault Soucarre's avatar
Thibault Soucarre committed
552

553 554 555 556 557 558 559 560 561
    glBegin(GL_QUADS);
    {
        glColor4d(0.0, 0.0, 1.0, 0.8);
        glVertex3d(trace_to_render_x(Info::Render::_x_min_visible) , 0, _z_ruler_under );
        glVertex3d(trace_to_render_x(Info::Render::_x_min_visible) , 8, _z_ruler_under );
        glVertex3d(trace_to_render_x(Info::Render::_x_max_visible) , 8, _z_ruler_under );
        glVertex3d(trace_to_render_x(Info::Render::_x_max_visible) , 0, _z_ruler_under );
    }
    glEnd();
Thibault Soucarre's avatar
Thibault Soucarre committed
562

563 564 565 566 567 568 569 570 571
    glBegin(GL_QUADS);
    {
        glColor4d(0.0, 0.0, 0.0, 1.0);
        glVertex3d(trace_to_render_x(Info::Render::_x_min_visible) , 0, _z_ruler_over );
        glVertex3d(trace_to_render_x(Info::Render::_x_min_visible) , 3, _z_ruler_over );
        glVertex3d(trace_to_render_x(Info::Render::_x_max_visible) , 3, _z_ruler_over );
        glVertex3d(trace_to_render_x(Info::Render::_x_max_visible) , 0, _z_ruler_over );
    }
    glEnd();
Thibault Soucarre's avatar
Thibault Soucarre committed
572

573
    return;
Thibault Soucarre's avatar
Thibault Soucarre committed
574
}
575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610



void Render_alternate::set_color(float r, float g, float b){
    _red = r;
    _green = g;
    _blue = b;
}

void Render_alternate::draw_text(const Element_pos x, const Element_pos y, const Element_pos, const std::string s){
    if (_draw_ruler) return;/* do not draw text for ruler */

        Container_text_ buf;

        buf.x     = x;
        buf.y     = render_to_trace_y(y);/* Cancel previous transformation. */
        buf.value = s;

        _texts.push_back(buf);
}


void Render_alternate::draw_quad(Element_pos x, Element_pos y, Element_pos z, Element_pos w, Element_pos h){
    int state;
    Element_pos data[8];

    Element_pos offset_x;
    const Element_pos offset_y = -_ruler_y - _ruler_height;

    offset_x = 0;

    if (!_draw_container)
        offset_x = -_default_entity_x_translate;

    data[0] = x + offset_x;
    data[1] = y + offset_y;
Thibault Soucarre's avatar
Thibault Soucarre committed
611
    data[2] = x + offset_x;
612 613 614 615 616 617 618 619 620 621 622 623 624
    data[3] = y + h + offset_y;
    data[4] = x + w + offset_x;
    data[5] = y + h + offset_y;
    data[6] = x + w + offset_x;
    data[7] = y + offset_y;

    state = Vbo::VBO_OK;

    if(NULL != _current_vbo)
        state = _current_vbo->add(8, data);

    if (Vbo::VBO_OUT_OF_MEMORY == state){
        /* Store the current vbo */
Thibault Soucarre's avatar
Thibault Soucarre committed
625 626
        _vbos.push_back(_current_vbo);

627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680
        /* Create a new vbo */
        _current_vbo = NULL;/* DO NOT DEALLOCATE BEFORE! */
        _current_vbo = new Vbo(100000, _current_vbo->QUADS);

        if (NULL == _current_vbo)
            message << tr("Cannot create a Vbo for states.").toStdString() << Message::ende;
    }

    /*
    glBegin(GL_QUADS);
    {
        glColor3d(_red, _green, _blue);
        glVertex3d(x + offset_x    , y + offset_y    , z        );
        glVertex3d(x + offset_x    , y + h + offset_y, z        );
        glColor3d(_red/1.5         , _green/1.5      , _blue/1.5);
        glVertex3d(x + w + offset_x, y + h + offset_y, z        );
        glVertex3d(x + w + offset_x, y + offset_y    , z        );
    }
    glEnd();*/
}

void Render_alternate::draw_triangle(Element_pos , Element_pos ,
                                  Element_pos , Element_pos ){
}

void Render_alternate::draw_line(Element_pos x1, Element_pos y1, Element_pos x2, Element_pos y2, Element_pos z){
    if (_draw_ruler || _draw_arrow || _draw_event) return;/* do not draw line for ruler or for arrow or for event */


    const Element_pos offset_x = -_default_entity_x_translate;
    const Element_pos offset_y = -_ruler_y - _ruler_height;

    glBegin(GL_LINES);
    {
        glColor3d(_red, _green, _blue);
        glVertex3d(x1 + offset_x, y1 + offset_y, z);
        glVertex3d(x2 + offset_x, y2 + offset_y, z);
    }
    glEnd();
}

void Render_alternate::draw_circle(Element_pos /*x*/, Element_pos /*y*/, Element_pos /*z*/, Element_pos /*r*/){
}


void Render_alternate::start_draw(){
    /* Init GLEW */
    glewInit();
    _draw_ruler = false;
    _draw_container = false;
    _draw_arrow = false;
    _draw_event = false;

    _current_vbo = NULL;
Thibault Soucarre's avatar
Thibault Soucarre committed
681

682 683 684 685 686 687 688
}

void Render_alternate::start_draw_containers(){
    _list_containers = glGenLists(1);/* create the list */
    if (_list_containers == 0) {
        *Message::get_instance() << tr("Error when creating list.").toStdString() << Message::endw;
    }
Thibault Soucarre's avatar
Thibault Soucarre committed
689

690 691 692 693 694
    glNewList(_list_containers, GL_COMPILE);/* open the list */
    _draw_container = true;
}

void Render_alternate::draw_container(const Element_pos , const Element_pos , const Element_pos , const Element_pos ){
Thibault Soucarre's avatar
Thibault Soucarre committed
695

696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807
}

void Render_alternate::draw_container_text(const Element_pos , const Element_pos , const std::string ){
}

void Render_alternate::end_draw_containers(){
    _draw_container = false;
    glEndList();/* close the list */
}

void Render_alternate::start_draw_states(){
    _current_vbo = NULL;
    _current_vbo = new Vbo((1<<20), _current_vbo->QUADS);/* Allocate 1 MiB */

    if (NULL == _current_vbo)
        message << tr("Cannot create a Vbo for states.").toStdString() << Message::ende;
}

void Render_alternate::draw_state(const Element_pos , const Element_pos , const Element_pos , const Element_pos , const Element_col , const Element_col , const Element_col ){
}

void Render_alternate::end_draw_states(){

    _vbos.push_back(_current_vbo);
}

void Render_alternate::start_draw_arrows(){
    _draw_arrow = true;

}

void Render_alternate::draw_arrow(const Element_pos start_time, const Element_pos end_time, const Element_pos start_height, const Element_pos end_height, const Element_col red, const Element_col green, const Element_col blue){

    Arrow_ buf;
    const Element_pos offset_x = -_default_entity_x_translate;
    const Element_pos offset_y = -_ruler_y - _ruler_height;

    buf.start_time   = start_time   + offset_x;
    buf.end_time     = end_time     + offset_x;
    buf.start_height = start_height + offset_y;
    buf.end_height   = end_height   + offset_y;
    buf.red          = red;
    buf.green        = green;
    buf.blue         = blue;

    _arrows.push_back(buf);
}

void Render_alternate::end_draw_arrows(){
    _draw_arrow = false;
}

void Render_alternate::start_draw_events(){
    _draw_event = true;
}

void Render_alternate::draw_event(const Element_pos time, const Element_pos height,  const Element_pos container_height){
    Event_ buf;
    const Element_pos offset_x = -_default_entity_x_translate;
    const Element_pos offset_y = -_ruler_y - _ruler_height;

    buf.time             = time   + offset_x;
    buf.height           = height + offset_y;
    buf.container_height = container_height   + offset_y;
    buf.red              = _red;
    buf.green            = _green;
    buf.blue             = _blue;

    _circles.push_back(buf);
}


void Render_alternate::end_draw_events(){
    _draw_event = false;
}

void Render_alternate::start_draw_counter(){
}

void Render_alternate::draw_counter(const Element_pos , const Element_pos ){
}

void Render_alternate::end_draw_counter(){
}

void Render_alternate::start_ruler(){
    _draw_ruler = true;
}

void Render_alternate::end_ruler(){
    _draw_ruler = false;
}

void Render_alternate::end_draw(){
}


void Render_alternate::draw_stored_texts(){
}

void Render_alternate::draw_stored_arrows(){

    /* Only draw triangle. Lines are already in a display list */
    const Element_pos coeff = 180.0f/M_PI;
    Element_pos angle;
    Element_pos start_time, end_time, start_height, end_height;
    Element_pos scaled_start_time, scaled_end_time, scaled_start_height, scaled_end_height;



    const unsigned int arrow_size = _arrows.size();
    for (unsigned int i=0 ; i<arrow_size ; i++){
Thibault Soucarre's avatar
Thibault Soucarre committed
808

809 810 811 812 813 814
        start_time   = _arrows[i].start_time;// + _x_state_scale*_x_state_translate;
        end_time     = _arrows[i].end_time;// + _x_state_scale*_x_state_translate;
        start_height = _arrows[i].start_height;
        end_height   = _arrows[i].end_height;

        set_color(_arrows[i].red, _arrows[i].green, _arrows[i].blue);
Thibault Soucarre's avatar
Thibault Soucarre committed
815

816 817 818 819 820 821 822
        scaled_start_time   = start_time   * _x_state_scale;
        scaled_end_time     = end_time     * _x_state_scale;
        scaled_start_height = start_height * _y_state_scale;
        scaled_end_height   = end_height   * _y_state_scale;

        glPushMatrix();
        {
Thibault Soucarre's avatar
Thibault Soucarre committed
823 824

            glTranslated(_default_entity_x_translate + _x_state_scale*end_time - _x_state_translate,
825 826 827 828 829 830 831 832 833
                         _ruler_y + _ruler_height + _y_state_scale*end_height - _y_state_translate,
                         _z_arrow);

            if (start_time != end_time){
                angle = atan2((scaled_end_height - scaled_start_height), (scaled_end_time - scaled_start_time))*coeff;/* arc tangent */
                glRotatef(angle, 0, 0, 1);
            }
            else
                glRotatef(90, 0, 0, 1);/* vertical alignment */
Thibault Soucarre's avatar
Thibault Soucarre committed
834

835 836 837 838 839 840 841 842
            glBegin(GL_TRIANGLES);
            {
                // glColor3d(_red, _green, _blue);
                glVertex2d(0.0, 0.0);
                glVertex2d(-1.2, -0.4);
                glVertex2d(-1.2, 0.4);
            }
            glEnd();
Thibault Soucarre's avatar
Thibault Soucarre committed
843

844 845 846 847 848
        }
        glPopMatrix();

        glPushMatrix();
        {
Thibault Soucarre's avatar
Thibault Soucarre committed
849

850 851 852 853
            glTranslated(_default_entity_x_translate - _x_state_translate,
                         _ruler_y + _ruler_height - _y_state_translate,
                         _z_arrow);
            glScalef(_x_state_scale, _y_state_scale, 1.0);
Thibault Soucarre's avatar
Thibault Soucarre committed
854

855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
            glBegin(GL_LINES);
            {
                glVertex2d(start_time, start_height);
                glVertex2d(end_time  , end_height  );
            }
            glEnd();
        }
        glPopMatrix();
    }
}

void Render_alternate::draw_stored_circles(){
    const int step          = 20;/* 20 polygons for the circle */
    const float angle       = M_PI/2.0f;
    const float delta_angle = 2*M_PI/step;
    const float radius = .5f;

    const unsigned int size = _circles.size();

    for (unsigned int i=0 ; i<size ; i++){
Thibault Soucarre's avatar
Thibault Soucarre committed
875

876 877 878
        glPushMatrix();
        {

Thibault Soucarre's avatar
Thibault Soucarre committed
879 880
            set_color(1.0 - _circles[i].red, 1.0 - _circles[i].green, 1.0 - _circles[i].blue);

881 882 883
            glTranslated(_default_entity_x_translate - _x_state_translate,
                         _ruler_y + _ruler_height - _y_state_translate,
                         _z_arrow);
Thibault Soucarre's avatar
Thibault Soucarre committed
884 885 886

             glScalef(_x_state_scale, _y_state_scale, 1.0);

887
             /* Draw the circle */
Thibault Soucarre's avatar
Thibault Soucarre committed
888

889 890 891 892
             glBegin(GL_POLYGON);
             {
                 for(int j = 0 ; j < step ; j ++){
                     glVertex2d(_circles[i].time + cos(angle+delta_angle*j)*radius/_x_state_scale,
Thibault Soucarre's avatar
Thibault Soucarre committed
893
                                _circles[i].height + sin(angle+delta_angle*j)*(radius/_y_state_scale)*Info::Screen::width/Info::Screen::height);
894 895 896 897
                 }
             }
             glEnd();

Thibault Soucarre's avatar
Thibault Soucarre committed
898 899 900

             set_color(_circles[i].red, _circles[i].green, _circles[i].blue);

901 902 903 904 905
             /* Draw the sub-circle */
             glBegin(GL_POLYGON);
             {
                 for(int j = 0 ; j < step ; j ++){
                     glVertex3d(_circles[i].time + cos(angle+delta_angle*j)*radius/(1.2*_x_state_scale) ,
Thibault Soucarre's avatar
Thibault Soucarre committed
906
                                _circles[i].height + sin(angle+delta_angle*j)*radius/(1.2*_y_state_scale)*Info::Screen::width/Info::Screen::height ,
907 908 909 910
                                0.1);
                 }
             }
             glEnd();
Thibault Soucarre's avatar
Thibault Soucarre committed
911 912


913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929
             glLineWidth( 3.0 );
            /* Draw the line */
             glBegin(GL_LINES);
            {
                glVertex2d(_circles[i].time, _circles[i].height);
                glVertex2d(_circles[i].time, _circles[i].height+_circles[i].container_height);
            }
            glEnd();

            glLineWidth( 1.0 );


        }
        glPopMatrix();
    }

    set_color(1.0, 1.0, 1.0);
Thibault Soucarre's avatar
Thibault Soucarre committed
930

931
}