X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fplugins%2Fenv.c;h=4b6ed795db783d4a6b47c70ada7612fb8c3a2f3a;hp=3a1f324f787c7f3b6744017694d8bd3d3691cd67;hb=b702b739df3d3dd601b0661c8349810f1fa0e46f;hpb=f383c18c9f85a1b439c6bfb2a27d652278ed019a diff --git a/src/plugins/env.c b/src/plugins/env.c index 3a1f324..4b6ed79 100644 --- a/src/plugins/env.c +++ b/src/plugins/env.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2010 Andy Spencer + * Copyright (C) 2009-2011 Andy Spencer * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -25,20 +25,24 @@ */ #include -#include -#include #include +#ifdef HAVE_GLUT +#include +#endif + #include "env.h" /*********** * Helpers * ***********/ -static void expose(GritsCallback *callback, GritsOpenGL *opengl, gpointer _env) + +/* Sky */ +static void sky_expose(GritsCallback *sky, GritsOpenGL *opengl, gpointer _env) { GritsPluginEnv *env = GRITS_PLUGIN_ENV(_env); - g_debug("GritsPluginEnv: expose"); + g_debug("GritsPluginEnv: expose_sky"); gdouble lat, lon, elev; grits_viewer_get_location(env->viewer, &lat, &lon, &elev); @@ -77,6 +81,225 @@ static void expose(GritsCallback *callback, GritsOpenGL *opengl, gpointer _env) glEnd(); } +/* Compass */ +static void compass_draw_compass(gdouble scale) +{ + gfloat thick = scale * 0.20; + + /* Setup lighting */ + float light_ambient[] = {0.4f, 0.4f, 0.4f, 0.4f}; + float light_diffuse[] = {0.9f, 0.9f, 0.9f, 1.0f}; + float light_position[] = {-scale*2, -scale*4, -scale*0.5, 1.0f}; + glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, light_position); + + /* Compass data */ + gdouble colors[][3] = { + {1, 0, 0}, + {1, 1, 1}, + {1, 1, 1}, + {1, 1, 1}, + }; + gdouble points[][3] = { + { 0, -scale, 0}, + { 0, 0, thick}, + { thick, -thick, 0}, + { 0, 0, -thick}, + {-thick, -thick, 0}, + }; + gint faces[][3] = { + {1, 0, 2}, + {2, 0, 3}, + {3, 0, 4}, + {4, 0, 1}, + }; + gint outline[] = { + 2, 0, 4, + 1, 2, 3, 4, + }; + + /* Draw compas */ + glEnable(GL_POLYGON_OFFSET_FILL); + glPolygonOffset(1, 1); + for (int i = 0; i < G_N_ELEMENTS(colors); i++) { + gdouble *color = colors[i]; + glColor3dv(color); + for (int j = 0; j < G_N_ELEMENTS(faces); j++) { + gdouble norm[3]; + gdouble *v0 = points[faces[j][0]]; + gdouble *v1 = points[faces[j][1]]; + gdouble *v2 = points[faces[j][2]]; + crossd3(v2, v1, v0, norm); + glNormal3dv(norm); + glBegin(GL_TRIANGLES); + glVertex3dv(v0); + glVertex3dv(v1); + glVertex3dv(v2); + glEnd(); + } + glRotatef(90, 0, 0, 1); + } + + /* Draw outline */ + glEnable(GL_POLYGON_OFFSET_LINE); + glDisable(GL_LIGHTING); + glPolygonOffset(0, 0); + glColor4f(0, 0, 0, 0.25); + glLineWidth(1); + for (int i = 0; i < G_N_ELEMENTS(colors); i++) { + glBegin(GL_LINE_STRIP); + for (int j = 0; j < G_N_ELEMENTS(outline); j++) + glVertex3dv(points[outline[j]]); + glEnd(); + glRotatef(90, 0, 0, 1); + } +} + +static gboolean compass_draw_teapot(gdouble scale, GritsPluginEnv *env) +{ + static int teatime = 0; +#ifdef HAVE_GLUT + static int init, argc; char *argv[] = {"", NULL}; + if (!init) { + teatime = grits_prefs_get_boolean(env->prefs, "grits/teatime", NULL); + glutInit(&argc, argv); + init = 1; + g_message("teatime=%d", teatime); + } + + if (teatime) { + /* Setup lighting */ + float light_ambient[] = {0.1f, 0.1f, 0.0f, 1.0f}; + float light_diffuse[] = {0.9f, 0.9f, 0.9f, 1.0f}; + float light_position[] = {-50.0f, -40.0f, -80.0f, 1.0f}; + glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); + glLightfv(GL_LIGHT0, GL_POSITION, light_position); + + /* Draw teapot */ + glRotatef(-90, 0, 0, 1); + glRotatef(-90, 1, 0, 0); + glColor4f(0.9, 0.9, 0.7, 1.0); + glutSolidTeapot(scale * 0.60); + } +#endif + return teatime; +} + +static void compass_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer _env) +{ + GritsPluginEnv *env = GRITS_PLUGIN_ENV(_env); + g_debug("GritsPluginEnv: compass_expose"); + gdouble x, y, z; + grits_viewer_get_rotation(env->viewer, &x, &y, &z); + + /* Setup projection */ + gint win_width = GTK_WIDGET(opengl)->allocation.width; + gint win_height = GTK_WIDGET(opengl)->allocation.height; + float scale = CLAMP(MIN(win_width,win_height)/2.0 * 0.1, 40, 100); + float offset = scale + 20; + glTranslatef(win_width - offset, offset, 0); + + /* Setup state */ + glClear(GL_DEPTH_BUFFER_BIT); + glEnable(GL_COLOR_MATERIAL); + glEnable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); + glEnable(GL_POLYGON_SMOOTH); + glEnable(GL_LINE_SMOOTH); + + /* Draw compass */ + x = CLAMP(x, -66, 66);; + glRotatef(x, 1, 0, 0); + glRotatef(-z, 0, 0, 1); + if (!compass_draw_teapot(scale, env)) + compass_draw_compass(scale); +} + +static gboolean compass_click(GritsCallback *compass, GdkEvent *evnet, GritsViewer *viewer) +{ + grits_viewer_set_rotation(viewer, 0, 0, 0); + return TRUE; +} + +/* Info */ +static void info_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer _env) +{ + gint win_width = GTK_WIDGET(opengl)->allocation.width; + gint win_height = GTK_WIDGET(opengl)->allocation.height; + + /* Create cairo surface */ + guint tex = 0; + const gchar *label0 = "Location: %7.3lf°, %8.3lf°, %4.0fm"; + const gchar *label1 = "Cursor: %7.3lf°, %8.3lf°, %4.0fm"; + gdouble width = 300; + gdouble height = 200; + cairo_surface_t *surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height); + cairo_t *cairo = cairo_create(surface); + + /* Text */ + gdouble lat, lon, elev; + grits_viewer_get_location(GRITS_VIEWER(opengl), &lat, &lon, &elev); + gchar *text0 = g_strdup_printf(label0, lat, lon, elev); + gchar *text1 = g_strdup_printf(label1, lat, lon, elev); + + /* Draw outline */ + cairo_set_line_width(cairo, 3); + cairo_set_source_rgba(cairo, 0, 0, 0, 0.75); + cairo_move_to(cairo, 2, 20); cairo_text_path(cairo, text0); + cairo_move_to(cairo, 2, 40); cairo_text_path(cairo, text1); + cairo_stroke(cairo); + + /* Draw filler */ + cairo_set_source_rgba(cairo, 1, 1, 1, 1); + cairo_move_to(cairo, 2, 20); cairo_show_text(cairo, text0); + cairo_move_to(cairo, 2, 40); cairo_show_text(cairo, text1); + + /* Setup pango */ + PangoLayout *layout = pango_cairo_create_layout(cairo); + PangoFontDescription *font = pango_font_description_from_string("Mono 9"); + pango_layout_set_font_description(layout, font); + pango_font_description_free(font); + pango_layout_set_text(layout, text0, -1); + pango_cairo_update_layout(cairo, layout); + cairo_set_line_join(cairo, CAIRO_LINE_JOIN_ROUND); + cairo_move_to(cairo, 2, 40); + pango_cairo_layout_path(cairo, layout); + for (float w = 0.2; w <= 0.8; w+=0.2) { + cairo_set_line_width(cairo, (1-w)*8); + cairo_set_source_rgba(cairo, 0, 0, 0, w); + cairo_stroke_preserve(cairo); + } + cairo_set_source_rgba(cairo, 1, 1, 1, 1); + pango_cairo_show_layout(cairo, layout); + + /* Load GL texture */ + glEnable(GL_TEXTURE_2D); + glGenTextures(1, &tex); + glBindTexture(GL_TEXTURE_2D, tex); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glPixelStorei(GL_PACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, + 0, GL_BGRA, GL_UNSIGNED_BYTE, cairo_image_surface_get_data(surface)); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + + /* Draw surface */ + glDisable(GL_LIGHTING); + glDisable(GL_COLOR_MATERIAL); + glDisable(GL_DEPTH_TEST); + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, tex); + glDisable(GL_CULL_FACE); + glTranslatef(win_width - width, win_height - height, 0); + glBegin(GL_QUADS); + glTexCoord2f(1, 0); glVertex3f(width, 0 , 0); // 0 - 3 0 + glTexCoord2f(1, 1); glVertex3f(width, height, 0); // 1 - | | + glTexCoord2f(0, 1); glVertex3f(0 , height, 0); // 2 - | | + glTexCoord2f(0, 0); glVertex3f(0 , 0 , 0); // 3 - 2----1 + glEnd(); +} /*********** * Methods * @@ -95,19 +318,32 @@ GritsPluginEnv *grits_plugin_env_new(GritsViewer *viewer, GritsPrefs *prefs) g_debug("GritsPluginEnv: new"); GritsPluginEnv *env = g_object_new(GRITS_TYPE_PLUGIN_ENV, NULL); env->viewer = g_object_ref(viewer); + env->prefs = g_object_ref(prefs); + + /* Add sky */ + GritsCallback *sky = grits_callback_new(sky_expose, env); + grits_viewer_add(viewer, GRITS_OBJECT(sky), GRITS_LEVEL_BACKGROUND, FALSE); + env->refs = g_list_prepend(env->refs, sky); + + /* Add compass */ + GritsCallback *compass = grits_callback_new(compass_expose, env); + grits_viewer_add(viewer, GRITS_OBJECT(compass), GRITS_LEVEL_HUD, TRUE); + g_signal_connect(compass, "clicked", G_CALLBACK(compass_click), viewer); + grits_object_set_cursor(GRITS_OBJECT(compass), GDK_CROSS); + env->refs = g_list_prepend(env->refs, compass); - /* Create objects */ - GritsCallback *callback = grits_callback_new(expose, env); - GritsTile *background = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST); - glGenTextures(1, &env->tex); - background->data = &env->tex; + /* Add info */ + //GritsCallback *info = grits_callback_new(info_expose, env); + //grits_viewer_add(viewer, GRITS_OBJECT(info), GRITS_LEVEL_HUD, FALSE); + //env->refs = g_list_prepend(env->refs, info); + (void)info_expose; - /* Add renderers */ - gpointer ref1, ref2; - ref1 = grits_viewer_add(viewer, GRITS_OBJECT(callback), GRITS_LEVEL_BACKGROUND, FALSE); - ref2 = grits_viewer_add(viewer, GRITS_OBJECT(background), GRITS_LEVEL_BACKGROUND, FALSE); - env->refs = g_list_prepend(env->refs, ref1); - env->refs = g_list_prepend(env->refs, ref2); + /* Add background */ + //GritsTile *background = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST); + //glGenTextures(1, &env->tex); + //background->data = &env->tex; + //grits_viewer_add(viewer, GRITS_OBJECT(background), GRITS_LEVEL_BACKGROUND, FALSE); + //env->refs = g_list_prepend(env->refs, background); return env; } @@ -140,8 +376,9 @@ static void grits_plugin_env_dispose(GObject *gobject) if (env->viewer) { for (GList *cur = env->refs; cur; cur = cur->next) grits_viewer_remove(env->viewer, cur->data); - g_list_free(env->refs); + g_list_free_full(env->refs, g_object_unref); g_object_unref(env->viewer); + g_object_unref(env->prefs); glDeleteTextures(1, &env->tex); env->viewer = NULL; }