/* * $Id: sv_draw.c,v 1.3 89/11/11 19:43:17 tynor Exp $ *---------------------------------------------------------------------------- * FPLAN - Flight Planner * Steve Tynor * tynor@prism.gatech.edu * * This program is in the public domain. Permission to copy, * distribute, modify this program is hearby given as long as this header * remains. If you redistribute this program after modifying it, please * document your changes so that I do not take the blame (or credit) for * those changes. If you fix bugs or add features, please send me a * patch so that I can keep the 'official' version up-to-date. * * Bug reports are welcome and I'll make an attempt to fix those * that are reported. * * USE AT YOUR OWN RISK! I assume no responsibility for any * errors in this program, its database or documentation. I will make an * effort to fix bugs, but if you crash and burn because, for example, * fuel estimates in this program were inaccurate, it's your own fault * for trusting somebody else's code! Remember, as PIC, it's _your_ * responsibility to do complete preflight planning. Use this program as * a flight planning aid, but verify its results before using them. *---------------------------------------------------------------------------- */ #ifdef GFX_SUNVIEW /* *============================================================================== * Graphics routines for Sunview *============================================================================== */ #include "wp_info.h" #include #include #include #include static char rcsid[] = "$Id: sv_draw.c,v 1.3 89/11/11 19:43:17 tynor Exp $"; static double min_lat; static double max_lat; static double min_long; static double max_long; #define PIX_OR (PIX_SRC | PIX_DST) /* Rasterop */ Pixfont *font; #define DEFAULT_SCALE 100 /* pixels per degree */ #define SV_MARGIN 40 Panel panel; Frame frame; Canvas canvas; static BOOLEAN brief_mode; int scale = DEFAULT_SCALE; BOOLEAN first_time; Scrollbar vert_scroll, horiz_scroll; /*----------------------------------------------------------------------------*/ static void sv_draw_pt (canvas, x, y) Canvas canvas; int x, y; { pw_writebackground (canvas_pixwin (canvas), x-1, y-1, 3, 3, PIX_NOT (PIX_SRC)); } /*----------------------------------------------------------------------------*/ static void sv_draw_str (canvas, x, y, str) Canvas canvas; int x, y; char *str; { pw_text (canvas_pixwin (canvas), x+3, y+3, PIX_OR, font, str); } /*----------------------------------------------------------------------------*/ static void sv_project (latitude, longitude, x, y) double latitude, longitude; int *x, *y; { /* * NOTE: this is "Tynor's naive projection system" - ignores the curvature * of the earth: */ *x = SV_MARGIN + (int) ((max_long - longitude) * (double) scale); *y = SV_MARGIN + (int) ((max_lat - latitude ) * (double) scale); } /*----------------------------------------------------------------------------*/ static void sv_draw_db (canvas, db) Canvas canvas; DATABASE_INFO *db; { int x, y; sv_project (db->latitude, db->longitude, &x, &y); sv_draw_pt (canvas, x, y); sv_draw_str (canvas, x, y, (db->mode != WP_INCREMENTAL) ? db->desig : db->name); } /*----------------------------------------------------------------------------*/ static void sv_draw_leg (canvas, db1, db2) Canvas canvas; DATABASE_INFO *db1, *db2; { int x1, y1, x2, y2; sv_project (db1->latitude, db1->longitude, &x1, &y1); sv_project (db2->latitude, db2->longitude, &x2, &y2); pw_vector (canvas_pixwin (canvas), x1, y1, x2, y2, PIX_OR, 1); } /*----------------------------------------------------------------------------*/ static void sv_scroll_to (db) DATABASE_INFO *db; { int x, y; sv_project (db->latitude, db->longitude, &x, &y); /* * try to center the waypoint on the canvas */ scrollbar_scroll_to (horiz_scroll, MIN ((int)window_get (canvas, CANVAS_WIDTH, 0), MAX (0, x - (int)window_get (canvas, WIN_WIDTH, 0) / 2))); scrollbar_scroll_to (vert_scroll, MIN ((int)window_get (canvas, CANVAS_HEIGHT, 0), MAX (0, y - (int)window_get (canvas, WIN_HEIGHT, 0) / 2))); } /*----------------------------------------------------------------------------*/ static void sv_redraw () { int width, height, i; #define MIN_WIDTH 400 #define XTRA_WIDTH 30 /* frame needs to be this much bigger than the canvas */ #define XTRA_HEIGHT 100 /* frame needs to be this much bigger than the canvas */ width = ABS ((int) ((max_long - min_long) * (double) scale)) + 2 * SV_MARGIN; height = ABS ((int) ((max_lat - min_lat) * (double) scale)) + 2 * SV_MARGIN; width = MAX (width, MIN_WIDTH); window_set (canvas, CANVAS_HEIGHT, height, 0); window_set (canvas, CANVAS_WIDTH, width, 0); pw_writebackground (canvas_pixwin (canvas), 0, 0, 3000, 3000, PIX_SRC); for (i = 0; i < num_cached; i++) { sv_draw_db (canvas, cache[i]); } for (i = 0; i < num_waypoints - 1; i++) { sv_draw_leg (canvas, waypoints[i].db, waypoints[i+1].db); if ((!brief_mode) && (waypoints[i].db->mode == WP_INCREMENTAL)) sv_draw_db (canvas, waypoints[i].db); } if (first_time) { Pixrect *screen = pr_open ("/dev/fb"); window_set (frame, WIN_WIDTH, MIN (screen->pr_size.x, XTRA_WIDTH + width), 0); window_set (frame, WIN_HEIGHT, MIN (screen->pr_size.y, XTRA_HEIGHT + height), 0); first_time = FALSE; sv_scroll_to (waypoints[0].db); } } /*----------------------------------------------------------------------------*/ sv_quit_event_proc (item, event) Panel_item item; Event *event; { window_destroy (frame); } /*----------------------------------------------------------------------------*/ sv_brief_event_proc (item, event) Panel_item item; Event *event; { brief_mode = (int) panel_get (item, PANEL_VALUE, 0); sv_redraw (); } /*----------------------------------------------------------------------------*/ sv_tofirst_event_proc (item, event) Panel_item item; Event *event; { sv_scroll_to (waypoints[0].db); } /*----------------------------------------------------------------------------*/ sv_tolast_event_proc (item, event) Panel_item item; Event *event; { sv_scroll_to (waypoints[num_waypoints-1].db); } /*----------------------------------------------------------------------------*/ sv_scale_event_proc (item, event) Panel_item item; Event *event; { scale = (int) panel_get (item, PANEL_VALUE, 0); sv_redraw (); } /*----------------------------------------------------------------------------*/ void sv_draw (brief) BOOLEAN brief; { min_max_lat_long (&min_lat, &max_lat, &min_long, &max_long); brief_mode = brief; font = pf_open ("/usr/lib/fonts/fixedwidthfonts/screen.r.7"); frame = window_create (NULL, FRAME, FRAME_LABEL, "FPLAN", 0); panel = window_create (frame, PANEL, 0); panel_create_item (panel, PANEL_BUTTON, PANEL_NOTIFY_PROC, sv_quit_event_proc, PANEL_LABEL_IMAGE, panel_button_image (panel, "Quit", 0, 0), PANEL_ITEM_X, ATTR_COL (0), PANEL_ITEM_Y, ATTR_ROW (0), 0); panel_create_item (panel, PANEL_BUTTON, PANEL_NOTIFY_PROC, sv_tofirst_event_proc, PANEL_LABEL_IMAGE, panel_button_image (panel, "To First", 0, 0), 0); panel_create_item (panel, PANEL_BUTTON, PANEL_NOTIFY_PROC, sv_tolast_event_proc, PANEL_LABEL_IMAGE, panel_button_image (panel, "To Last", 0, 0), 0); panel_create_item (panel, PANEL_CYCLE, PANEL_LABEL_STRING, "Brief:", PANEL_CHOICE_STRINGS, "NO", "YES", 0, PANEL_NOTIFY_PROC, sv_brief_event_proc, PANEL_VALUE, brief_mode, 0); panel_create_item (panel, PANEL_SLIDER, PANEL_LABEL_STRING, "Scale:", PANEL_VALUE, scale, PANEL_MIN_VALUE, 5, PANEL_MAX_VALUE, 400, PANEL_SLIDER_WIDTH, 200, PANEL_NOTIFY_PROC, sv_scale_event_proc, 0); window_fit_height (panel); horiz_scroll = scrollbar_create(0); vert_scroll = scrollbar_create(0); canvas = window_create (frame, CANVAS, CANVAS_AUTO_SHRINK, FALSE, WIN_VERTICAL_SCROLLBAR, vert_scroll, WIN_HORIZONTAL_SCROLLBAR, horiz_scroll, CANVAS_WIDTH, 1, CANVAS_HEIGHT, 1, 0); scrollbar_set (horiz_scroll, SCROLL_ADVANCED_MODE, 1, 0); scrollbar_set (vert_scroll, SCROLL_ADVANCED_MODE, 1, 0); first_time = TRUE; sv_redraw (); window_main_loop (frame); } #endif /* GFX_SUNVIEW */