+++ /dev/null
-/*
- * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
- *
- * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-#include <math.h>
-#include <gps.h>
-
-#include "globals.h"
-#include "dialog.h"
-#include "vikgpsdlayer.h"
-#include "viklayer.h"
-#include "vikgpsdlayer_pixmap.h"
-
-static void gpsd_layer_marshall( VikGpsdLayer *vgl, guint8 **data, gint *len );
-static VikGpsdLayer *gpsd_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp );
-static gboolean gpsd_layer_set_param ( VikGpsdLayer *vgl, guint16 id, VikLayerParamData data, VikViewport *vp );
-static VikLayerParamData gpsd_layer_get_param ( VikGpsdLayer *vgl, guint16 id );
-static VikGpsdLayer *vik_gpsd_layer_new ( VikViewport *vp );
-static void vik_gpsd_layer_free ( VikGpsdLayer *vgl );
-static void vik_gpsd_layer_draw ( VikGpsdLayer *vgl, gpointer data );
-
-
-static VikLayerParam gpsd_layer_params[] = {
-};
-
-
-enum { NUM_PARAMS=0 };
-
-VikLayerInterface vik_gpsd_layer_interface = {
- "Gpsd",
- &gpsdlayer_pixbuf,
-
- NULL,
- 0,
-
-// gpsd_layer_params,
- NULL,
- NUM_PARAMS,
- NULL,
- 0,
-
- VIK_MENU_ITEM_ALL,
-
- (VikLayerFuncCreate) vik_gpsd_layer_new,
- (VikLayerFuncRealize) NULL,
- NULL,
- (VikLayerFuncFree) vik_gpsd_layer_free,
-
- (VikLayerFuncProperties) NULL,
- (VikLayerFuncDraw) vik_gpsd_layer_draw,
- (VikLayerFuncChangeCoordMode) NULL,
-
- (VikLayerFuncSetMenuItemsSelection) NULL,
- (VikLayerFuncGetMenuItemsSelection) NULL,
-
- (VikLayerFuncAddMenuItems) NULL,
- (VikLayerFuncSublayerAddMenuItems) NULL,
-
- (VikLayerFuncSublayerRenameRequest) NULL,
- (VikLayerFuncSublayerToggleVisible) NULL,
-
- (VikLayerFuncMarshall) gpsd_layer_marshall,
- (VikLayerFuncUnmarshall) gpsd_layer_unmarshall,
-
- (VikLayerFuncSetParam) gpsd_layer_set_param,
- (VikLayerFuncGetParam) gpsd_layer_get_param,
-
- (VikLayerFuncReadFileData) NULL,
- (VikLayerFuncWriteFileData) NULL,
-
- (VikLayerFuncDeleteItem) NULL,
- (VikLayerFuncCopyItem) NULL,
- (VikLayerFuncPasteItem) NULL,
- (VikLayerFuncFreeCopiedItem) NULL,
- (VikLayerFuncDragDropRequest) NULL,
-};
-
-typedef struct {
- struct gps_data_t data;
- VikGpsdLayer *vgl;
-} FakeGpsData;
-
-struct _VikGpsdLayer {
- VikLayer vl;
- GdkGC *gc, *pt_gc;
- struct LatLon ll;
- gdouble course;
- FakeGpsData *fgd;
- gint timeout;
-};
-
-GType vik_gpsd_layer_get_type ()
-{
- static GType vgl_type = 0;
-
- if (!vgl_type)
- {
- static const GTypeInfo vgl_info =
- {
- sizeof (VikGpsdLayerClass),
- NULL, /* base_init */
- NULL, /* base_finalize */
- NULL, /* class init */
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof (VikGpsdLayer),
- 0,
- NULL /* instance init */
- };
- vgl_type = g_type_register_static ( VIK_LAYER_TYPE, "VikGpsdLayer", &vgl_info, 0 );
- }
-
- return vgl_type;
-}
-
-static void gpsd_layer_marshall( VikGpsdLayer *vgl, guint8 **data, gint *len )
-{
- vik_layer_marshall_params ( VIK_LAYER(vgl), data, len );
-}
-
-static VikGpsdLayer *gpsd_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp )
-{
- VikGpsdLayer *rv = vik_gpsd_layer_new ( vvp );
- vik_layer_unmarshall_params ( VIK_LAYER(rv), data, len, vvp );
- return rv;
-}
-
-gboolean gpsd_layer_set_param ( VikGpsdLayer *vgl, guint16 id, VikLayerParamData data, VikViewport *vp )
-{
- switch ( id )
- {
-
- }
- return TRUE;
-}
-
-static VikLayerParamData gpsd_layer_get_param ( VikGpsdLayer *vgl, guint16 id )
-{
- VikLayerParamData rv;
- switch ( id )
- {
-// case PARAM_COLOR: rv.s = vgl->color ? vgl->color : ""; break;
- }
- return rv;
-}
-
-static void vik_gpsd_layer_draw ( VikGpsdLayer *vgl, gpointer data )
-{
- VikViewport *vp = (VikViewport *) data;
- VikCoord nw, se;
- struct LatLon lnw, lse;
- vik_viewport_screen_to_coord ( vp, -20, -20, &nw );
- vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp)+20, vik_viewport_get_width(vp)+20, &se );
- vik_coord_to_latlon ( &nw, &lnw );
- vik_coord_to_latlon ( &se, &lse );
- if ( vgl->ll.lat > lse.lat &&
- vgl->ll.lat < lnw.lat &&
- vgl->ll.lon > lnw.lon &&
- vgl->ll.lon < lse.lon ) {
- VikCoord gps;
- gint x, y;
- gint half_back_x, half_back_y;
- gint pt_x, pt_y;
- gint side1_x, side1_y, side2_x, side2_y;
-
- vik_coord_load_from_latlon ( &gps, vik_viewport_get_coord_mode(vp), &(vgl->ll) );
- vik_viewport_coord_to_screen ( vp, &gps, &x, &y );
-
- half_back_y = y+8*cos(M_PI/180*vgl->course);
- half_back_x = x-8*sin(M_PI/180*vgl->course);
-
- pt_y = half_back_y-24*cos(M_PI/180*vgl->course);
- pt_x = half_back_x+24*sin(M_PI/180*vgl->course);
-
- side1_y = half_back_y+9*sin(M_PI/180*vgl->course);
- side1_x = half_back_x+9*cos(M_PI/180*vgl->course);
-
- side2_y = half_back_y-9*sin(M_PI/180*vgl->course);
- side2_x = half_back_x-9*cos(M_PI/180*vgl->course);
-
- GdkPoint trian[3] = { { pt_x, pt_y }, {side1_x, side1_y}, {side2_x, side2_y} };
-
- g_print("%d %d %d %d\n", x, y, pt_x, pt_y);
- vik_viewport_draw_polygon ( vp, vgl->gc, TRUE, trian, 3 );
- vik_viewport_draw_rectangle ( vp, vgl->pt_gc, TRUE, x-2, y-2, 4, 4 );
- }
-}
-
-static void vik_gpsd_layer_free ( VikGpsdLayer *vgl )
-{
- /* we already free'd the original gps_data,
- * and the current one lives in the VikGpsdLayer and would be freed twice.
- * so we malloc one, copy the data, and close/free it.
- */
- if ( vgl->fgd ) {
- gps_close ( (struct gps_data_t *) vgl->fgd );
- gtk_timeout_remove ( vgl->timeout );
- }
-
- if ( vgl->gc != NULL )
- g_object_unref ( G_OBJECT(vgl->gc) );
- if ( vgl->pt_gc != NULL )
- g_object_unref ( G_OBJECT(vgl->pt_gc) );
-}
-
-void gpsd_hook(struct gps_data_t *gps_data, char *data)
-{
- FakeGpsData *fgd = (FakeGpsData *) gps_data;
- gdouble lat, lon, alt, herror, verror, course, speed;
- /* skip thru three spaces */
- while (*data && *data != ' ') data++; if (*data) data++;
- while (*data && *data != ' ') data++; if (*data) data++;
- while (*data && *data != ' ') data++; if (*data) data++;
- if ( sscanf(data, "%lf %lf %lf %lf %lf %lf %lf", &lat, &lon,
- &alt, &herror, &verror, &course, &speed) ) {
- VikGpsdLayer *vgl = fgd->vgl;
- vgl->ll.lat = lat;
- vgl->ll.lon = lon;
- vgl->course = course;
- /* could/should emit update here. */
- }
-}
-
-static gboolean gpsd_timeout(VikGpsdLayer *vgl)
-{
- if ( vgl->fgd ) {
- gps_query( (struct gps_data_t *) vgl->fgd, "o");
- vik_layer_emit_update ( VIK_LAYER(vgl) );
- }
- return TRUE;
-}
-
-static VikGpsdLayer *vik_gpsd_layer_new ( VikViewport *vp )
-{
- VikGpsdLayer *vgl = VIK_GPSD_LAYER ( g_object_new ( VIK_GPSD_LAYER_TYPE, NULL ) );
-
- vik_layer_init ( VIK_LAYER(vgl), VIK_LAYER_GPSD );
-
- struct gps_data_t *orig_data = gps_open ("localhost", DEFAULT_GPSD_PORT);
- if ( orig_data ) {
- vgl->fgd = g_realloc ( orig_data, sizeof(FakeGpsData) );
- vgl->fgd->vgl = vgl;
-
- gps_set_raw_hook( (struct gps_data_t *) vgl->fgd, gpsd_hook ); /* pass along vgl in fgd */
-
- vgl->timeout = gtk_timeout_add ( 1000, (GtkFunction)gpsd_timeout, vgl);
- } else {
- a_dialog_warning_msg(VIK_GTK_WINDOW_FROM_WIDGET(vp), "No Gpsd found! Right-click layer and click 'Enable GPSD' (not yet implemented) once daemon is started.");
- }
-
- vgl->gc = vik_viewport_new_gc ( vp, "#203070", 2 );
- vgl->pt_gc = vik_viewport_new_gc ( vp, "red", 2 );
- vgl->ll.lat = vgl->ll.lon = vgl->course = 0;
-
- return vgl;
-}
-
projects / andy / viking.git / commitdiff