Diff of /trunk/src/pos.c

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revision 2 by achadwick, Wed Dec 10 00:00:05 2008 UTC revision 9 by harbaum, Fri Dec 12 20:06:32 2008 UTC
# Line 23  Line 23 
23    
24  #define TAG_STATE  GTK_STATE_PRELIGHT  #define TAG_STATE  GTK_STATE_PRELIGHT
25    
26  void pos_lat_str(char *str, int len, double latitude) {  void pos_lat_str(char *str, int len, pos_float_t latitude) {
27    snprintf(str, len-1, "%.5f", latitude);    snprintf(str, len-1, "%.5f", latitude);
28    /* eliminate trailing zeros */    /* eliminate trailing zeros */
29    if((strchr(str, '.') != NULL) || (strchr(str, ',') != NULL)) {    if((strchr(str, '.') != NULL) || (strchr(str, ',') != NULL)) {
# Line 35  void pos_lat_str(char *str, int len, dou Line 35  void pos_lat_str(char *str, int len, dou
35    strcat(str, "°");    strcat(str, "°");
36  }  }
37    
38  void pos_lon_str(char *str, int len, double longitude) {  void pos_lon_str(char *str, int len, pos_float_t longitude) {
39    snprintf(str, len-1, "%.5f", longitude);    snprintf(str, len-1, "%.5f", longitude);
40    /* eliminate trailing zeros */    /* eliminate trailing zeros */
41    if((strchr(str, '.') != NULL) || (strchr(str, ',') != NULL)) {    if((strchr(str, '.') != NULL) || (strchr(str, ',') != NULL)) {
# Line 47  void pos_lon_str(char *str, int len, dou Line 47  void pos_lon_str(char *str, int len, dou
47    strcat(str, "°");    strcat(str, "°");
48  }  }
49    
50  double pos_parse_lat(char *str) {  pos_float_t pos_parse_lat(char *str) {
51    return g_strtod(str, NULL);    return g_strtod(str, NULL);
52  }  }
53    
54  double pos_parse_lon(char *str) {  pos_float_t pos_parse_lon(char *str) {
55    return g_strtod(str, NULL);    return g_strtod(str, NULL);
56  }  }
57    
58  gboolean pos_lat_valid(double lat) {  gboolean pos_lat_valid(pos_float_t lat) {
59    return(!isnan(lat) && (lat >= -90.0) && (lat <= 90.0));    return(!isnan(lat) && (lat >= -90.0) && (lat <= 90.0));
60  }  }
61    
62  gboolean pos_lon_valid(double lon) {  gboolean pos_lon_valid(pos_float_t lon) {
63    return(!isnan(lon) && (lon >= -180.0) && (lon <= 180.0));    return(!isnan(lon) && (lon >= -180.0) && (lon <= 180.0));
64  }  }
65    
# Line 69  static gboolean mark(GtkWidget *widget, Line 69  static gboolean mark(GtkWidget *widget,
69  }  }
70    
71  static void callback_modified_lat(GtkWidget *widget, gpointer data ) {  static void callback_modified_lat(GtkWidget *widget, gpointer data ) {
72    double i = pos_parse_lat((char*)gtk_entry_get_text(GTK_ENTRY(widget)));    pos_float_t i = pos_parse_lat((char*)gtk_entry_get_text(GTK_ENTRY(widget)));
73    mark(widget, pos_lat_valid(i));    mark(widget, pos_lat_valid(i));
74  }  }
75    
76  /* a entry that is colored red when being "active" */  /* a entry that is colored red when being "active" */
77  GtkWidget *pos_lat_entry_new(double lat) {  GtkWidget *pos_lat_entry_new(pos_float_t lat) {
78    GdkColor color;    GdkColor color;
79    GtkWidget *widget = gtk_entry_new();    GtkWidget *widget = gtk_entry_new();
80    gdk_color_parse("red", &color);    gdk_color_parse("red", &color);
# Line 91  GtkWidget *pos_lat_entry_new(double lat) Line 91  GtkWidget *pos_lat_entry_new(double lat)
91  }  }
92    
93  static void callback_modified_lon(GtkWidget *widget, gpointer data ) {  static void callback_modified_lon(GtkWidget *widget, gpointer data ) {
94    double i = pos_parse_lon((char*)gtk_entry_get_text(GTK_ENTRY(widget)));    pos_float_t i = pos_parse_lon((char*)gtk_entry_get_text(GTK_ENTRY(widget)));
95    mark(widget, pos_lon_valid(i));    mark(widget, pos_lon_valid(i));
96  }  }
97    
98  /* a entry that is colored red when filled with invalid coordinate */  /* a entry that is colored red when filled with invalid coordinate */
99  GtkWidget *pos_lon_entry_new(double lon) {  GtkWidget *pos_lon_entry_new(pos_float_t lon) {
100    GdkColor color;    GdkColor color;
101    GtkWidget *widget = gtk_entry_new();    GtkWidget *widget = gtk_entry_new();
102    gdk_color_parse("#ff0000", &color);    gdk_color_parse("#ff0000", &color);
# Line 112  GtkWidget *pos_lon_entry_new(double lon) Line 112  GtkWidget *pos_lon_entry_new(double lon)
112    return widget;    return widget;
113  }  }
114    
115  double pos_lat_get(GtkWidget *widget) {  pos_float_t pos_lat_get(GtkWidget *widget) {
116    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));
117    return pos_parse_lat(p);    return pos_parse_lat(p);
118  }  }
119    
120  double pos_lon_get(GtkWidget *widget) {  pos_float_t pos_lon_get(GtkWidget *widget) {
121    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));
122    return pos_parse_lon(p);    return pos_parse_lon(p);
123  }  }
124    
125  void pos_lat_entry_set(GtkWidget *entry, double lat) {  void pos_lat_entry_set(GtkWidget *entry, pos_float_t lat) {
126    char str[32];    char str[32];
127    pos_lat_str(str, sizeof(str), lat);    pos_lat_str(str, sizeof(str), lat);
128    gtk_entry_set_text(GTK_ENTRY(entry), str);    gtk_entry_set_text(GTK_ENTRY(entry), str);
129  }  }
130    
131  void pos_lon_entry_set(GtkWidget *entry, double lon) {  void pos_lon_entry_set(GtkWidget *entry, pos_float_t lon) {
132    char str[32];    char str[32];
133    pos_lon_str(str, sizeof(str), lon);    pos_lon_str(str, sizeof(str), lon);
134    gtk_entry_set_text(GTK_ENTRY(entry), str);    gtk_entry_set_text(GTK_ENTRY(entry), str);
135  }  }
136    
137  GtkWidget *pos_lat_label_new(double lat) {  GtkWidget *pos_lat_label_new(pos_float_t lat) {
138    char str[32];    char str[32];
139    pos_lat_str(str, sizeof(str), lat);    pos_lat_str(str, sizeof(str), lat);
140    return gtk_label_new(str);    return gtk_label_new(str);
141  }  }
142    
143  GtkWidget *pos_lon_label_new(double lon) {  GtkWidget *pos_lon_label_new(pos_float_t lon) {
144    char str[32];    char str[32];
145    pos_lon_str(str, sizeof(str), lon);    pos_lon_str(str, sizeof(str), lon);
146    return gtk_label_new(str);    return gtk_label_new(str);
147  }  }
148    
149  void pos_lat_label_set(GtkWidget *label, double lat) {  void pos_lat_label_set(GtkWidget *label, pos_float_t lat) {
150    char str[32];    char str[32];
151    pos_lat_str(str, sizeof(str), lat);    pos_lat_str(str, sizeof(str), lat);
152    gtk_label_set_text(GTK_LABEL(label), str);    gtk_label_set_text(GTK_LABEL(label), str);
153  }  }
154    
155  void pos_lon_label_set(GtkWidget *label, double lon) {  void pos_lon_label_set(GtkWidget *label, pos_float_t lon) {
156    char str[32];    char str[32];
157    pos_lon_str(str, sizeof(str), lon);    pos_lon_str(str, sizeof(str), lon);
158    gtk_label_set_text(GTK_LABEL(label), str);    gtk_label_set_text(GTK_LABEL(label), str);
# Line 182  void lpos2pos(bounds_t *bounds, lpos_t * Line 182  void lpos2pos(bounds_t *bounds, lpos_t *
182    pos->lat = RAD2DEG(2 * atan(exp(tmp.y/POS_EQ_RADIUS)) - M_PI/2);    pos->lat = RAD2DEG(2 * atan(exp(tmp.y/POS_EQ_RADIUS)) - M_PI/2);
183  }  }
184    
185  void pos_dist_str(char *str, int len, double dist, gboolean is_mil) {  void pos_dist_str(char *str, int len, pos_float_t dist, gboolean is_mil) {
186    /* is this to be displayed as miles? */    /* is this to be displayed as miles? */
187    if(is_mil) dist /= KMPMIL;  // kilometer per mile    if(is_mil) dist /= KMPMIL;  // kilometer per mile
188    
# Line 196  void pos_dist_str(char *str, int len, do Line 196  void pos_dist_str(char *str, int len, do
196    }    }
197  }  }
198    
199  void pos_dist_entry_set(GtkWidget *entry, double dist, gboolean is_mil) {  void pos_dist_entry_set(GtkWidget *entry, pos_float_t dist, gboolean is_mil) {
200    char str[32];    char str[32];
201    pos_dist_str(str, sizeof(str), dist, is_mil);    pos_dist_str(str, sizeof(str), dist, is_mil);
202    gtk_entry_set_text(GTK_ENTRY(entry), str);    gtk_entry_set_text(GTK_ENTRY(entry), str);
203  }  }
204    
205  double pos_parse_dist(char *str, gboolean is_mil) {  pos_float_t pos_parse_dist(char *str, gboolean is_mil) {
206    return g_strtod(str, NULL) * (is_mil?KMPMIL:1.0);    return g_strtod(str, NULL) * (is_mil?KMPMIL:1.0);
207  }  }
208    
209  double pos_dist_get(GtkWidget *widget, gboolean is_mil) {  pos_float_t pos_dist_get(GtkWidget *widget, gboolean is_mil) {
210    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));    char *p = (char*)gtk_entry_get_text(GTK_ENTRY(widget));
211    return pos_parse_dist(p, is_mil);    return pos_parse_dist(p, is_mil);
212  }  }
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