#include <grits.h>
-#ifdef HAVE_GLUT
-#include <GL/glut.h>
-#endif
-
#include "env.h"
/***********
}
}
-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);
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);
+ GtkAllocation alloc;
+ gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+ float scale = CLAMP(MIN(alloc.width,alloc.height)/2.0 * 0.1, 40, 100);
float offset = scale + 20;
- glTranslatef(win_width - offset, offset, 0);
+ glTranslatef(alloc.width - offset, offset, 0);
/* Setup state */
glClear(GL_DEPTH_BUFFER_BIT);
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);
+ compass_draw_compass(scale);
}
static gboolean compass_click(GritsCallback *compass, GdkEvent *evnet, GritsViewer *viewer)
return TRUE;
}
+/* Info */
+static void info_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer _env)
+{
+ GtkAllocation alloc;
+ gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+
+ /* 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(alloc.width - width, alloc.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 *
***********/
/* Add compass */
GritsCallback *compass = grits_callback_new(compass_expose, env);
- grits_viewer_add(viewer, GRITS_OBJECT(compass), GRITS_LEVEL_HUD, FALSE);
+ 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);
+ /* 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 background */
//GritsTile *background = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
//glGenTextures(1, &env->tex);
/* Drop references */
if (env->viewer) {
for (GList *cur = env->refs; cur; cur = cur->next)
- grits_viewer_remove(env->viewer, cur->data);
- g_list_free(env->refs);
+ grits_object_destroy_pointer(&cur->data);
g_object_unref(env->viewer);
+ g_object_unref(env->prefs);
glDeleteTextures(1, &env->tex);
env->viewer = NULL;
}
projects / grits / blobdiff