goat3d

annotate goatview/src/goatview.cc @ 88:7941e89798e5

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author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 15 May 2014 06:52:01 +0300
parents 91e3aa1a60c3
children 8b156bc5205b
rev   line source
nuclear@78 1 #include <stdio.h>
nuclear@85 2 #include <map>
nuclear@82 3 #include "opengl.h"
nuclear@76 4 #include <QtOpenGL/QtOpenGL>
nuclear@76 5 #include <vmath/vmath.h>
nuclear@73 6 #include "goatview.h"
nuclear@74 7 #include "goat3d.h"
nuclear@74 8
nuclear@78 9 static void draw_node(goat3d_node *node);
nuclear@82 10 static void draw_mesh(goat3d_mesh *mesh);
nuclear@78 11
nuclear@74 12 goat3d *scene;
nuclear@85 13 static SceneModel *sdata;
nuclear@88 14 static GoatViewport *glview;
nuclear@75 15
nuclear@75 16 static long anim_time;
nuclear@75 17 static float cam_theta, cam_phi, cam_dist = 8;
nuclear@76 18 static float fov = 60.0;
nuclear@82 19 static bool use_nodes = true;
nuclear@83 20 static bool use_lighting = true;
nuclear@75 21
nuclear@88 22 void post_redisplay()
nuclear@88 23 {
nuclear@88 24 glview->updateGL();
nuclear@88 25 }
nuclear@88 26
nuclear@82 27
nuclear@82 28 GoatView::GoatView()
nuclear@82 29 {
nuclear@82 30 glview = 0;
nuclear@85 31 scene_model = 0;
nuclear@82 32
nuclear@84 33 QSettings settings;
nuclear@84 34 resize(settings.value("main/size", QSize(1024, 768)).toSize());
nuclear@84 35 move(settings.value("main/pos", QPoint(100, 100)).toPoint());
nuclear@84 36 use_nodes = settings.value("use_nodes", true).toBool();
nuclear@84 37 use_lighting = settings.value("use_lighting", true).toBool();
nuclear@83 38
nuclear@83 39 make_center(); // must be first
nuclear@82 40 make_menu();
nuclear@82 41 make_dock();
nuclear@82 42
nuclear@82 43 statusBar();
nuclear@82 44
nuclear@82 45 setWindowTitle("GoatView");
nuclear@82 46 }
nuclear@82 47
nuclear@82 48 GoatView::~GoatView()
nuclear@82 49 {
nuclear@85 50 delete scene_model;
nuclear@85 51 sdata = 0;
nuclear@82 52 }
nuclear@82 53
nuclear@83 54 void GoatView::closeEvent(QCloseEvent *ev)
nuclear@83 55 {
nuclear@84 56 QSettings settings;
nuclear@84 57 settings.setValue("main/size", size());
nuclear@84 58 settings.setValue("main/pos", pos());
nuclear@84 59 settings.setValue("use_nodes", use_nodes);
nuclear@84 60 settings.setValue("use_lighting", use_lighting);
nuclear@83 61 }
nuclear@83 62
nuclear@83 63
nuclear@82 64 bool GoatView::load_scene(const char *fname)
nuclear@76 65 {
nuclear@76 66 if(scene) {
nuclear@76 67 goat3d_free(scene);
nuclear@76 68 }
nuclear@76 69 if(!(scene = goat3d_create()) || goat3d_load(scene, fname) == -1) {
nuclear@76 70 return false;
nuclear@76 71 }
nuclear@76 72
nuclear@76 73 float bmin[3], bmax[3];
nuclear@82 74 if(goat3d_get_bounds(scene, bmin, bmax) != -1) {
nuclear@82 75 float bsize = (Vector3(bmax[0], bmax[1], bmax[2]) - Vector3(bmin[0], bmin[1], bmin[2])).length();
nuclear@83 76 cam_dist = bsize / tan(DEG_TO_RAD(fov) / 2.0);
nuclear@82 77 printf("bounds size: %f, cam_dist: %f\n", bsize, cam_dist);
nuclear@82 78 }
nuclear@76 79
nuclear@85 80 scene_model->set_scene(scene);
nuclear@85 81 treeview->expandAll();
nuclear@85 82 treeview->resizeColumnToContents(0);
nuclear@85 83
nuclear@85 84 sdata = scene_model; // set the global sdata ptr
nuclear@76 85 return true;
nuclear@76 86 }
nuclear@73 87
nuclear@73 88 bool GoatView::make_menu()
nuclear@73 89 {
nuclear@82 90 // file menu
nuclear@73 91 QMenu *menu_file = menuBar()->addMenu("&File");
nuclear@73 92
nuclear@73 93 QAction *act_open_sce = new QAction("&Open Scene", this);
nuclear@73 94 act_open_sce->setShortcuts(QKeySequence::Open);
nuclear@73 95 connect(act_open_sce, &QAction::triggered, this, &GoatView::open_scene);
nuclear@73 96 menu_file->addAction(act_open_sce);
nuclear@73 97
nuclear@73 98 QAction *act_open_anm = new QAction("Open &Animation", this);
nuclear@73 99 connect(act_open_anm, &QAction::triggered, this, &GoatView::open_anim);
nuclear@73 100 menu_file->addAction(act_open_anm);
nuclear@73 101
nuclear@73 102 QAction *act_quit = new QAction("&Quit", this);
nuclear@73 103 act_quit->setShortcuts(QKeySequence::Quit);
nuclear@73 104 connect(act_quit, &QAction::triggered, [&](){qApp->quit();});
nuclear@73 105 menu_file->addAction(act_quit);
nuclear@82 106
nuclear@82 107 // view menu
nuclear@82 108 QMenu *menu_view = menuBar()->addMenu("&View");
nuclear@82 109
nuclear@82 110 QAction *act_use_nodes = new QAction("use nodes", this);
nuclear@82 111 act_use_nodes->setCheckable(true);
nuclear@82 112 act_use_nodes->setChecked(use_nodes);
nuclear@83 113 connect(act_use_nodes, &QAction::triggered, this,
nuclear@88 114 [&](){ use_nodes = !use_nodes; post_redisplay(); });
nuclear@82 115 menu_view->addAction(act_use_nodes);
nuclear@83 116
nuclear@83 117 QAction *act_use_lighting = new QAction("lighting", this);
nuclear@83 118 act_use_lighting->setCheckable(true);
nuclear@83 119 act_use_lighting->setChecked(use_lighting);
nuclear@83 120 connect(act_use_lighting, &QAction::triggered, glview, &GoatViewport::toggle_lighting);
nuclear@83 121 menu_view->addAction(act_use_lighting);
nuclear@83 122
nuclear@83 123 // help menu
nuclear@83 124 QMenu *menu_help = menuBar()->addMenu("&Help");
nuclear@83 125
nuclear@83 126 QAction *act_about = new QAction("&About", this);
nuclear@83 127 connect(act_about, &QAction::triggered, this, &GoatView::show_about);
nuclear@83 128 menu_help->addAction(act_about);
nuclear@73 129 return true;
nuclear@73 130 }
nuclear@73 131
nuclear@73 132 bool GoatView::make_dock()
nuclear@73 133 {
nuclear@73 134 // ---- side-dock ----
nuclear@73 135 QWidget *dock_cont = new QWidget;
nuclear@73 136 QVBoxLayout *dock_vbox = new QVBoxLayout;
nuclear@73 137 dock_cont->setLayout(dock_vbox);
nuclear@73 138
nuclear@73 139 QDockWidget *dock = new QDockWidget("Scene graph", this);
nuclear@73 140 dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
nuclear@73 141 dock->setWidget(dock_cont);
nuclear@73 142 addDockWidget(Qt::LeftDockWidgetArea, dock);
nuclear@73 143
nuclear@82 144 // make the tree view widget
nuclear@85 145 treeview = new QTreeView;
nuclear@85 146 treeview->setAlternatingRowColors(true);
nuclear@88 147 treeview->setSelectionMode(QAbstractItemView::SingleSelection);
nuclear@85 148 dock_vbox->addWidget(treeview);
nuclear@82 149
nuclear@85 150 scene_model = new SceneModel;
nuclear@88 151 connect(scene_model, &SceneModel::dataChanged, [&](){ post_redisplay(); });
nuclear@85 152 treeview->setModel(scene_model);
nuclear@82 153
nuclear@88 154 connect(treeview->selectionModel(), &QItemSelectionModel::selectionChanged,
nuclear@88 155 [&](){ scene_model->selchange(treeview->selectionModel()->selectedIndexes()); });
nuclear@88 156
nuclear@82 157 // misc
nuclear@82 158 QPushButton *bn_quit = new QPushButton("quit");
nuclear@82 159 dock_vbox->addWidget(bn_quit);
nuclear@85 160 connect(bn_quit, &QPushButton::clicked, [&](){ qApp->quit(); });
nuclear@82 161
nuclear@73 162 // ---- bottom dock ----
nuclear@73 163 dock_cont = new QWidget;
nuclear@73 164 QHBoxLayout *dock_hbox = new QHBoxLayout;
nuclear@73 165 dock_cont->setLayout(dock_hbox);
nuclear@73 166
nuclear@73 167 QSlider *slider_time = new QSlider(Qt::Orientation::Horizontal);
nuclear@73 168 slider_time->setDisabled(true);
nuclear@73 169 dock_hbox->addWidget(slider_time);
nuclear@73 170
nuclear@73 171 dock = new QDockWidget("Animation", this);
nuclear@73 172 dock->setAllowedAreas(Qt::BottomDockWidgetArea);
nuclear@73 173 dock->setWidget(dock_cont);
nuclear@73 174 addDockWidget(Qt::BottomDockWidgetArea, dock);
nuclear@73 175
nuclear@73 176 return true;
nuclear@73 177 }
nuclear@73 178
nuclear@73 179 bool GoatView::make_center()
nuclear@73 180 {
nuclear@88 181 glview = ::glview = new GoatViewport(this);
nuclear@82 182 setCentralWidget(glview);
nuclear@73 183 return true;
nuclear@73 184 }
nuclear@73 185
nuclear@73 186 void GoatView::open_scene()
nuclear@73 187 {
nuclear@74 188 std::string fname = QFileDialog::getOpenFileName(this, "Open scene file", "",
nuclear@74 189 "Goat3D Scene (*.goatsce);;All Files (*)").toStdString();
nuclear@74 190 if(fname.empty()) {
nuclear@74 191 statusBar()->showMessage("Abort: No file selected!");
nuclear@74 192 return;
nuclear@74 193 }
nuclear@74 194
nuclear@74 195 statusBar()->showMessage("opening scene file");
nuclear@76 196 if(!load_scene(fname.c_str())) {
nuclear@74 197 statusBar()->showMessage("failed to load scene file");
nuclear@74 198 }
nuclear@73 199 }
nuclear@73 200
nuclear@73 201 void GoatView::open_anim()
nuclear@73 202 {
nuclear@73 203 statusBar()->showMessage("opening animation...");
nuclear@73 204 }
nuclear@73 205
nuclear@73 206
nuclear@73 207 // ---- OpenGL viewport ----
nuclear@82 208 GoatViewport::GoatViewport(QWidget *main_win)
nuclear@73 209 : QGLWidget(QGLFormat(QGL::DepthBuffer))
nuclear@73 210 {
nuclear@82 211 this->main_win = main_win;
nuclear@82 212 initialized = false;
nuclear@73 213 }
nuclear@73 214
nuclear@73 215 GoatViewport::~GoatViewport()
nuclear@73 216 {
nuclear@73 217 }
nuclear@73 218
nuclear@73 219 QSize GoatViewport::sizeHint() const
nuclear@73 220 {
nuclear@73 221 return QSize(800, 600);
nuclear@73 222 }
nuclear@73 223
nuclear@82 224 #define CRITICAL(error, detail) \
nuclear@82 225 do { \
nuclear@82 226 fprintf(stderr, "%s: %s\n", error, detail); \
nuclear@82 227 QMessageBox::critical(main_win, error, detail); \
nuclear@82 228 abort(); \
nuclear@82 229 } while(0)
nuclear@82 230
nuclear@73 231 void GoatViewport::initializeGL()
nuclear@73 232 {
nuclear@82 233 if(initialized) return;
nuclear@82 234 initialized = true;
nuclear@82 235
nuclear@79 236 init_opengl();
nuclear@79 237
nuclear@82 238 if(!GLEW_ARB_transpose_matrix) {
nuclear@82 239 CRITICAL("OpenGL initialization failed", "ARB_transpose_matrix extension not found!");
nuclear@82 240 }
nuclear@82 241
nuclear@79 242 glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
nuclear@78 243
nuclear@78 244 glEnable(GL_DEPTH_TEST);
nuclear@78 245 glEnable(GL_CULL_FACE);
nuclear@83 246 if(use_lighting) {
nuclear@83 247 glEnable(GL_LIGHTING);
nuclear@83 248 }
nuclear@83 249 glEnable(GL_LIGHT0);
nuclear@83 250
nuclear@83 251 float ldir[] = {-1, 1, 2, 0};
nuclear@83 252 glLightfv(GL_LIGHT0, GL_POSITION, ldir);
nuclear@73 253 }
nuclear@73 254
nuclear@73 255 void GoatViewport::resizeGL(int xsz, int ysz)
nuclear@73 256 {
nuclear@73 257 glViewport(0, 0, xsz, ysz);
nuclear@75 258 glMatrixMode(GL_PROJECTION);
nuclear@75 259 glLoadIdentity();
nuclear@75 260 gluPerspective(60.0, (float)xsz / (float)ysz, 0.5, 5000.0);
nuclear@73 261 }
nuclear@73 262
nuclear@73 263 void GoatViewport::paintGL()
nuclear@73 264 {
nuclear@75 265 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@75 266
nuclear@75 267 glMatrixMode(GL_MODELVIEW);
nuclear@75 268 glLoadIdentity();
nuclear@75 269 glTranslatef(0, 0, -cam_dist);
nuclear@75 270 glRotatef(cam_phi, 1, 0, 0);
nuclear@75 271 glRotatef(cam_theta, 0, 1, 0);
nuclear@75 272
nuclear@82 273 if(!scene) return;
nuclear@82 274
nuclear@82 275 if(use_nodes) {
nuclear@75 276 int node_count = goat3d_get_node_count(scene);
nuclear@75 277 for(int i=0; i<node_count; i++) {
nuclear@75 278 goat3d_node *node = goat3d_get_node(scene, i);
nuclear@83 279 if(!goat3d_get_node_parent(node)) {
nuclear@83 280 draw_node(node); // only draw root nodes, the rest will be drawn recursively
nuclear@83 281 }
nuclear@82 282 }
nuclear@82 283 } else {
nuclear@82 284 int mesh_count = goat3d_get_mesh_count(scene);
nuclear@82 285 for(int i=0; i<mesh_count; i++) {
nuclear@82 286 goat3d_mesh *mesh = goat3d_get_mesh(scene, i);
nuclear@82 287 draw_mesh(mesh);
nuclear@75 288 }
nuclear@75 289 }
nuclear@73 290 }
nuclear@75 291
nuclear@83 292 void GoatViewport::toggle_lighting()
nuclear@83 293 {
nuclear@83 294 use_lighting = !use_lighting;
nuclear@83 295 if(use_lighting) {
nuclear@83 296 glEnable(GL_LIGHTING);
nuclear@83 297 } else {
nuclear@83 298 glDisable(GL_LIGHTING);
nuclear@83 299 }
nuclear@83 300 updateGL();
nuclear@83 301 }
nuclear@83 302
nuclear@82 303 #ifndef GLEW_ARB_transpose_matrix
nuclear@82 304 #error "GLEW_ARB_transpose_matrix undefined?"
nuclear@82 305 #endif
nuclear@82 306
nuclear@75 307 static void draw_node(goat3d_node *node)
nuclear@75 308 {
nuclear@85 309 SceneNodeData *data = sdata ? sdata->get_node_data(node) : 0;
nuclear@85 310 if(!data) return;
nuclear@85 311
nuclear@75 312 float xform[16];
nuclear@75 313 goat3d_get_node_matrix(node, xform, anim_time);
nuclear@78 314
nuclear@78 315 glPushMatrix();
nuclear@82 316 glMultTransposeMatrixf(xform);
nuclear@75 317
nuclear@85 318 if(data->visible) {
nuclear@85 319 if(goat3d_get_node_type(node) == GOAT3D_NODE_MESH) {
nuclear@85 320 goat3d_mesh *mesh = (goat3d_mesh*)goat3d_get_node_object(node);
nuclear@75 321
nuclear@85 322 draw_mesh(mesh);
nuclear@88 323
nuclear@88 324 if(data->selected) {
nuclear@88 325 float bmin[3], bmax[3];
nuclear@88 326 goat3d_get_mesh_bounds(mesh, bmin, bmax);
nuclear@88 327
nuclear@88 328 glPushAttrib(GL_ENABLE_BIT);
nuclear@88 329 glDisable(GL_LIGHTING);
nuclear@88 330
nuclear@88 331 glColor3f(0.3, 1, 0.2);
nuclear@88 332
nuclear@88 333 glBegin(GL_LINE_LOOP);
nuclear@88 334 glVertex3f(bmin[0], bmin[1], bmin[2]);
nuclear@88 335 glVertex3f(bmax[0], bmin[1], bmin[2]);
nuclear@88 336 glVertex3f(bmax[0], bmin[1], bmax[2]);
nuclear@88 337 glVertex3f(bmin[0], bmin[1], bmax[2]);
nuclear@88 338 glEnd();
nuclear@88 339
nuclear@88 340 glBegin(GL_LINE_LOOP);
nuclear@88 341 glVertex3f(bmin[0], bmax[1], bmin[2]);
nuclear@88 342 glVertex3f(bmax[0], bmax[1], bmin[2]);
nuclear@88 343 glVertex3f(bmax[0], bmax[1], bmax[2]);
nuclear@88 344 glVertex3f(bmin[0], bmax[1], bmax[2]);
nuclear@88 345 glEnd();
nuclear@88 346
nuclear@88 347 glBegin(GL_LINES);
nuclear@88 348 glVertex3f(bmin[0], bmin[1], bmin[2]);
nuclear@88 349 glVertex3f(bmin[0], bmax[1], bmin[2]);
nuclear@88 350 glVertex3f(bmin[0], bmin[1], bmax[2]);
nuclear@88 351 glVertex3f(bmin[0], bmax[1], bmax[2]);
nuclear@88 352 glVertex3f(bmax[0], bmin[1], bmin[2]);
nuclear@88 353 glVertex3f(bmax[0], bmax[1], bmin[2]);
nuclear@88 354 glVertex3f(bmax[0], bmin[1], bmax[2]);
nuclear@88 355 glVertex3f(bmax[0], bmax[1], bmax[2]);
nuclear@88 356 glEnd();
nuclear@88 357
nuclear@88 358 glPopAttrib();
nuclear@88 359 }
nuclear@85 360 }
nuclear@75 361 }
nuclear@75 362
nuclear@83 363 int num_child = goat3d_get_node_child_count(node);
nuclear@75 364 for(int i=0; i<num_child; i++) {
nuclear@75 365 draw_node(goat3d_get_node_child(node, i));
nuclear@83 366 }
nuclear@78 367
nuclear@78 368 glPopMatrix();
nuclear@78 369 }
nuclear@78 370
nuclear@82 371 static void draw_mesh(goat3d_mesh *mesh)
nuclear@82 372 {
nuclear@83 373 static const float white[] = {1, 1, 1, 1};
nuclear@83 374 static const float black[] = {0, 0, 0, 1};
nuclear@83 375
nuclear@83 376 const float *color;
nuclear@83 377 goat3d_material *mtl = goat3d_get_mesh_mtl(mesh);
nuclear@83 378
nuclear@83 379 if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_DIFFUSE))) {
nuclear@83 380 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);
nuclear@83 381 } else {
nuclear@83 382 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, white);
nuclear@83 383 }
nuclear@83 384 if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_SPECULAR))) {
nuclear@83 385 glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, color);
nuclear@83 386 } else {
nuclear@83 387 glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
nuclear@83 388 }
nuclear@83 389 if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_SHININESS))) {
nuclear@83 390 glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, color[0]);
nuclear@83 391 } else {
nuclear@83 392 glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60.0);
nuclear@83 393 }
nuclear@83 394 // TODO texture
nuclear@83 395
nuclear@83 396
nuclear@82 397 int num_faces = goat3d_get_mesh_face_count(mesh);
nuclear@82 398 int num_verts = goat3d_get_mesh_attrib_count(mesh, GOAT3D_MESH_ATTR_VERTEX);
nuclear@82 399
nuclear@82 400 glEnableClientState(GL_VERTEX_ARRAY);
nuclear@82 401 glVertexPointer(3, GL_FLOAT, 0, goat3d_get_mesh_attribs(mesh, GOAT3D_MESH_ATTR_VERTEX));
nuclear@82 402
nuclear@82 403 float *data;
nuclear@82 404 if((data = (float*)goat3d_get_mesh_attribs(mesh, GOAT3D_MESH_ATTR_NORMAL))) {
nuclear@82 405 glEnableClientState(GL_NORMAL_ARRAY);
nuclear@82 406 glNormalPointer(GL_FLOAT, 0, data);
nuclear@82 407 }
nuclear@82 408 if((data = (float*)goat3d_get_mesh_attribs(mesh, GOAT3D_MESH_ATTR_TEXCOORD))) {
nuclear@82 409 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
nuclear@82 410 glTexCoordPointer(2, GL_FLOAT, 0, data);
nuclear@82 411 }
nuclear@82 412
nuclear@82 413 int *indices;
nuclear@82 414 if((indices = goat3d_get_mesh_faces(mesh))) {
nuclear@82 415 glDrawElements(GL_TRIANGLES, num_faces * 3, GL_UNSIGNED_INT, indices);
nuclear@82 416 } else {
nuclear@82 417 glDrawArrays(GL_TRIANGLES, 0, num_verts * 3);
nuclear@82 418 }
nuclear@82 419
nuclear@82 420 glDisableClientState(GL_VERTEX_ARRAY);
nuclear@82 421 glDisableClientState(GL_NORMAL_ARRAY);
nuclear@82 422 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
nuclear@82 423 }
nuclear@82 424
nuclear@78 425
nuclear@78 426 static float prev_x, prev_y;
nuclear@78 427 void GoatViewport::mousePressEvent(QMouseEvent *ev)
nuclear@78 428 {
nuclear@78 429 prev_x = ev->x();
nuclear@78 430 prev_y = ev->y();
nuclear@78 431 }
nuclear@78 432
nuclear@78 433 void GoatViewport::mouseMoveEvent(QMouseEvent *ev)
nuclear@78 434 {
nuclear@78 435 int dx = ev->x() - prev_x;
nuclear@78 436 int dy = ev->y() - prev_y;
nuclear@80 437 prev_x = ev->x();
nuclear@80 438 prev_y = ev->y();
nuclear@78 439
nuclear@78 440 if(!dx && !dy) return;
nuclear@78 441
nuclear@78 442 if(ev->buttons() & Qt::LeftButton) {
nuclear@78 443 cam_theta += dx * 0.5;
nuclear@78 444 cam_phi += dy * 0.5;
nuclear@78 445
nuclear@78 446 if(cam_phi < -90) cam_phi = -90;
nuclear@78 447 if(cam_phi > 90) cam_phi = 90;
nuclear@78 448 }
nuclear@78 449 if(ev->buttons() & Qt::RightButton) {
nuclear@78 450 cam_dist += dy * 0.1;
nuclear@78 451
nuclear@78 452 if(cam_dist < 0.0) cam_dist = 0.0;
nuclear@78 453 }
nuclear@78 454 updateGL();
nuclear@78 455 }
nuclear@83 456
nuclear@83 457 static const char *about_str =
nuclear@83 458 "GoatView - Goat3D scene file viewer<br>"
nuclear@83 459 "Copyright (C) 2014 John Tsiombikas &lt;<a href=\"mailto:nuclear@mutantstargoat.com\">nuclear@mutantstargoat.com</a>&gt;<br>"
nuclear@83 460 "<br>"
nuclear@83 461 "This program is free software: you can redistribute it and/or modify<br>"
nuclear@83 462 "it under the terms of the GNU General Public License as published by<br>"
nuclear@83 463 "the Free Software Foundation, either version 3 of the License, or<br>"
nuclear@83 464 "(at your option) any later version.<br>"
nuclear@83 465 "<br>"
nuclear@83 466 "This program is distributed in the hope that it will be useful,<br>"
nuclear@83 467 "but WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
nuclear@83 468 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the<br>"
nuclear@83 469 "GNU General Public License for more details.<br>"
nuclear@83 470 "<br>"
nuclear@83 471 "You should have received a copy of the GNU General Public License<br>"
nuclear@83 472 "along with this program. If not, see <a href=\"http://www.gnu.org/licenses/gpl\">http://www.gnu.org/licenses/gpl</a>.";
nuclear@83 473
nuclear@83 474 void GoatView::show_about()
nuclear@83 475 {
nuclear@83 476 QMessageBox::information(this, "About GoatView", about_str);
nuclear@83 477 }