2 * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include <gtk/gtkgl.h>
28 static gboolean rotate(gpointer _self)
30 GisPluginTeapot *self = _self;
31 if (gtk_toggle_button_get_active(self->button)) {
32 self->rotation += 1.0;
33 gtk_widget_queue_draw(GTK_WIDGET(self->viewer));
38 static gpointer expose(GisCallback *callback, gpointer _self)
40 GisPluginTeapot *self = GIS_PLUGIN_TEAPOT(_self);
41 g_debug("GisPluginTeapot: expose");
43 glMatrixMode(GL_PROJECTION);
45 glOrtho(1,-1, -1,1, -10,10);
47 glMatrixMode(GL_MODELVIEW);
50 float light_ambient[] = {0.1f, 0.1f, 0.0f, 1.0f};
51 float light_diffuse[] = {0.9f, 0.9f, 0.9f, 1.0f};
52 float light_position[] = {-30.0f, 50.0f, 40.0f, 1.0f};
53 glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
54 glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
55 glLightfv(GL_LIGHT0, GL_POSITION, light_position);
56 glEnable(GL_COLOR_MATERIAL);
58 glTranslatef(-0.5, -0.5, -2);
59 glRotatef(self->rotation, 1, 1, 0);
60 glColor4f(0.9, 0.9, 0.7, 1.0);
61 glDisable(GL_CULL_FACE);
62 gdk_gl_draw_teapot(TRUE, 0.25);
71 GisPluginTeapot *gis_plugin_teapot_new(GisViewer *viewer, GisPrefs *prefs)
73 g_debug("GisPluginTeapot: new");
74 GisPluginTeapot *self = g_object_new(GIS_TYPE_PLUGIN_TEAPOT, NULL);
75 self->viewer = viewer;
78 GisCallback *callback = gis_callback_new(expose, self);
79 gis_viewer_add(viewer, GIS_OBJECT(callback), GIS_LEVEL_WORLD, 0);
84 static GtkWidget *gis_plugin_teapot_get_config(GisPlugin *_self)
86 GisPluginTeapot *self = GIS_PLUGIN_TEAPOT(_self);
87 return GTK_WIDGET(self->button);
95 static void gis_plugin_teapot_plugin_init(GisPluginInterface *iface);
96 G_DEFINE_TYPE_WITH_CODE(GisPluginTeapot, gis_plugin_teapot, G_TYPE_OBJECT,
97 G_IMPLEMENT_INTERFACE(GIS_TYPE_PLUGIN,
98 gis_plugin_teapot_plugin_init));
99 static void gis_plugin_teapot_plugin_init(GisPluginInterface *iface)
101 g_debug("GisPluginTeapot: plugin_init");
102 /* Add methods to the interface */
103 iface->get_config = gis_plugin_teapot_get_config;
105 /* Class/Object init */
106 static void gis_plugin_teapot_init(GisPluginTeapot *self)
108 g_debug("GisPluginTeapot: init");
110 self->button = GTK_TOGGLE_BUTTON(gtk_toggle_button_new_with_label("Rotate"));
111 self->rotate_id = g_timeout_add(1000/60, rotate, self);
112 self->rotation = 30.0;
114 static void gis_plugin_teapot_dispose(GObject *gobject)
116 g_debug("GisPluginTeapot: dispose");
117 GisPluginTeapot *self = GIS_PLUGIN_TEAPOT(gobject);
118 g_source_remove(self->rotate_id);
119 /* Drop references */
120 G_OBJECT_CLASS(gis_plugin_teapot_parent_class)->dispose(gobject);
122 static void gis_plugin_teapot_class_init(GisPluginTeapotClass *klass)
124 g_debug("GisPluginTeapot: class_init");
125 GObjectClass *gobject_class = (GObjectClass*)klass;
126 gobject_class->dispose = gis_plugin_teapot_dispose;