1.1 --- a/goatview/src/goatview.cc	Sun May 11 22:04:54 2014 +0300
     1.2 +++ b/goatview/src/goatview.cc	Mon May 12 07:22:52 2014 +0300
     1.3 @@ -17,30 +17,44 @@
     1.4  static float cam_theta, cam_phi, cam_dist = 8;
     1.5  static float fov = 60.0;
     1.6  static bool use_nodes = true;
     1.7 +static bool use_lighting = true;
     1.8  
     1.9  
    1.10  GoatView::GoatView()
    1.11  {
    1.12  	glview = 0;
    1.13  
    1.14 +	QSettings *settings = new QSettings;
    1.15 +	resize(settings->value("main/size", QSize(1024, 768)).toSize());
    1.16 +	move(settings->value("main/pos", QPoint(100, 100)).toPoint());
    1.17 +	use_nodes = settings->value("use_nodes", true).toBool();
    1.18 +	use_lighting = settings->value("use_lighting", true).toBool();
    1.19 +	delete settings;
    1.20 +
    1.21 +	make_center();	// must be first
    1.22  	make_menu();
    1.23  	make_dock();
    1.24 -	make_center();
    1.25  
    1.26  	statusBar();
    1.27  
    1.28  	setWindowTitle("GoatView");
    1.29 -
    1.30 -	QSettings *settings = new QSettings;
    1.31 -	resize(settings->value("main/size", QSize(1024, 768)).toSize());
    1.32 -	move(settings->value("main/pos", QPoint(100, 100)).toPoint());
    1.33 -	delete settings;
    1.34  }
    1.35  
    1.36  GoatView::~GoatView()
    1.37  {
    1.38  }
    1.39  
    1.40 +void GoatView::closeEvent(QCloseEvent *ev)
    1.41 +{
    1.42 +	QSettings *settings = new QSettings;
    1.43 +	settings->setValue("main/size", size());
    1.44 +	settings->setValue("main/pos", pos());
    1.45 +	settings->setValue("use_nodes", use_nodes);
    1.46 +	settings->setValue("use_lighting", use_lighting);
    1.47 +	delete settings;
    1.48 +}
    1.49 +
    1.50 +
    1.51  bool GoatView::load_scene(const char *fname)
    1.52  {
    1.53  	if(scene) {
    1.54 @@ -53,7 +67,7 @@
    1.55  	float bmin[3], bmax[3];
    1.56  	if(goat3d_get_bounds(scene, bmin, bmax) != -1) {
    1.57  		float bsize = (Vector3(bmax[0], bmax[1], bmax[2]) - Vector3(bmin[0], bmin[1], bmin[2])).length();
    1.58 -		cam_dist = bsize / tan(DEG_TO_RAD(fov) / 2.0) + bsize;
    1.59 +		cam_dist = bsize / tan(DEG_TO_RAD(fov) / 2.0);
    1.60  		printf("bounds size: %f, cam_dist: %f\n", bsize, cam_dist);
    1.61  	}
    1.62  
    1.63 @@ -61,14 +75,6 @@
    1.64  	return true;
    1.65  }
    1.66  
    1.67 -void GoatView::closeEvent(QCloseEvent *ev)
    1.68 -{
    1.69 -	QSettings *settings = new QSettings;
    1.70 -	settings->setValue("main/size", size());
    1.71 -	settings->setValue("main/pos", pos());
    1.72 -	delete settings;
    1.73 -}
    1.74 -
    1.75  bool GoatView::make_menu()
    1.76  {
    1.77  	// file menu
    1.78 @@ -94,8 +100,22 @@
    1.79  	QAction *act_use_nodes = new QAction("use nodes", this);
    1.80  	act_use_nodes->setCheckable(true);
    1.81  	act_use_nodes->setChecked(use_nodes);
    1.82 -	connect(act_use_nodes, &QAction::triggered, this, [&](){use_nodes = !use_nodes; glview->updateGL();});
    1.83 +	connect(act_use_nodes, &QAction::triggered, this,
    1.84 +			[&](){ use_nodes = !use_nodes; glview->updateGL(); });
    1.85  	menu_view->addAction(act_use_nodes);
    1.86 +
    1.87 +	QAction *act_use_lighting = new QAction("lighting", this);
    1.88 +	act_use_lighting->setCheckable(true);
    1.89 +	act_use_lighting->setChecked(use_lighting);
    1.90 +	connect(act_use_lighting, &QAction::triggered, glview, &GoatViewport::toggle_lighting);
    1.91 +	menu_view->addAction(act_use_lighting);
    1.92 +
    1.93 +	// help menu
    1.94 +	QMenu *menu_help = menuBar()->addMenu("&Help");
    1.95 +
    1.96 +	QAction *act_about = new QAction("&About", this);
    1.97 +	connect(act_about, &QAction::triggered, this, &GoatView::show_about);
    1.98 +	menu_help->addAction(act_about);
    1.99  	return true;
   1.100  }
   1.101  
   1.102 @@ -246,6 +266,13 @@
   1.103  
   1.104  	glEnable(GL_DEPTH_TEST);
   1.105  	glEnable(GL_CULL_FACE);
   1.106 +	if(use_lighting) {
   1.107 +		glEnable(GL_LIGHTING);
   1.108 +	}
   1.109 +	glEnable(GL_LIGHT0);
   1.110 +
   1.111 +	float ldir[] = {-1, 1, 2, 0};
   1.112 +	glLightfv(GL_LIGHT0, GL_POSITION, ldir);
   1.113  }
   1.114  
   1.115  void GoatViewport::resizeGL(int xsz, int ysz)
   1.116 @@ -272,7 +299,9 @@
   1.117  		int node_count = goat3d_get_node_count(scene);
   1.118  		for(int i=0; i<node_count; i++) {
   1.119  			goat3d_node *node = goat3d_get_node(scene, i);
   1.120 -			draw_node(node);	// only draw root nodes, the rest will be drawn recursively
   1.121 +			if(!goat3d_get_node_parent(node)) {
   1.122 +				draw_node(node);	// only draw root nodes, the rest will be drawn recursively
   1.123 +			}
   1.124  		}
   1.125  	} else {
   1.126  		int mesh_count = goat3d_get_mesh_count(scene);
   1.127 @@ -283,6 +312,17 @@
   1.128  	}
   1.129  }
   1.130  
   1.131 +void GoatViewport::toggle_lighting()
   1.132 +{
   1.133 +	use_lighting = !use_lighting;
   1.134 +	if(use_lighting) {
   1.135 +		glEnable(GL_LIGHTING);
   1.136 +	} else {
   1.137 +		glDisable(GL_LIGHTING);
   1.138 +	}
   1.139 +	updateGL();
   1.140 +}
   1.141 +
   1.142  #ifndef GLEW_ARB_transpose_matrix
   1.143  #error "GLEW_ARB_transpose_matrix undefined?"
   1.144  #endif
   1.145 @@ -301,16 +341,40 @@
   1.146  		draw_mesh(mesh);
   1.147  	}
   1.148  
   1.149 -	/*int num_child = goat3d_get_node_child_count(node);
   1.150 +	int num_child = goat3d_get_node_child_count(node);
   1.151  	for(int i=0; i<num_child; i++) {
   1.152  		draw_node(goat3d_get_node_child(node, i));
   1.153 -	}*/
   1.154 +	}
   1.155  
   1.156  	glPopMatrix();
   1.157  }
   1.158  
   1.159  static void draw_mesh(goat3d_mesh *mesh)
   1.160  {
   1.161 +	static const float white[] = {1, 1, 1, 1};
   1.162 +	static const float black[] = {0, 0, 0, 1};
   1.163 +
   1.164 +	const float *color;
   1.165 +	goat3d_material *mtl = goat3d_get_mesh_mtl(mesh);
   1.166 +
   1.167 +	if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_DIFFUSE))) {
   1.168 +		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);
   1.169 +	} else {
   1.170 +		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, white);
   1.171 +	}
   1.172 +	if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_SPECULAR))) {
   1.173 +		glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, color);
   1.174 +	} else {
   1.175 +		glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, black);
   1.176 +	}
   1.177 +	if(mtl && (color = goat3d_get_mtl_attrib(mtl, GOAT3D_MAT_ATTR_SHININESS))) {
   1.178 +		glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, color[0]);
   1.179 +	} else {
   1.180 +		glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60.0);
   1.181 +	}
   1.182 +	// TODO texture
   1.183 +
   1.184 +
   1.185  	int num_faces = goat3d_get_mesh_face_count(mesh);
   1.186  	int num_verts = goat3d_get_mesh_attrib_count(mesh, GOAT3D_MESH_ATTR_VERTEX);
   1.187  
   1.188 @@ -370,3 +434,25 @@
   1.189  	}
   1.190  	updateGL();
   1.191  }
   1.192 +
   1.193 +static const char *about_str =
   1.194 +	"GoatView - Goat3D scene file viewer<br>"
   1.195 +	"Copyright (C) 2014 John Tsiombikas &lt;<a href=\"mailto:nuclear@mutantstargoat.com\">nuclear@mutantstargoat.com</a>&gt;<br>"
   1.196 +	"<br>"
   1.197 +	"This program is free software: you can redistribute it and/or modify<br>"
   1.198 +	"it under the terms of the GNU General Public License as published by<br>"
   1.199 +	"the Free Software Foundation, either version 3 of the License, or<br>"
   1.200 +	"(at your option) any later version.<br>"
   1.201 +	"<br>"
   1.202 +	"This program is distributed in the hope that it will be useful,<br>"
   1.203 +	"but WITHOUT ANY WARRANTY; without even the implied warranty of<br>"
   1.204 +	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the<br>"
   1.205 +	"GNU General Public License for more details.<br>"
   1.206 +	"<br>"
   1.207 +	"You should have received a copy of the GNU General Public License<br>"
   1.208 +	"along with this program.  If not, see <a href=\"http://www.gnu.org/licenses/gpl\">http://www.gnu.org/licenses/gpl</a>.";
   1.209 +
   1.210 +void GoatView::show_about()
   1.211 +{
   1.212 +	QMessageBox::information(this, "About GoatView", about_str);
   1.213 +}