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#include <stdio.h>
#include <unistd.h>
#include <math.h>
#include "gis.h"
#include "Vect.h"
#include "dbmi.h"
#include "raster.h"
#include "display.h"
#include "colors.h"
#include "form.h"
#include "global.h"
#include "proto.h"
int
write_line ( struct Map_info *Map, int type, struct line_pnts *Points )
{
int i, field, cat, ret;
static int first_form = 1;
char *form;
struct line_cats *Cats;
struct field_info *Fi;
dbString html;
Cats = Vect_new_cats_struct ();
db_init_string (&html);
cat = var_geti(VAR_CAT);
if ( var_geti(VAR_CAT_MODE) != CAT_MODE_NO && cat > 0 && var_geti(VAR_FIELD) > 0 ) {
Vect_cat_set ( Cats, var_geti(VAR_FIELD), cat );
G_debug (2, "write field = %d cat = %d", var_geti(VAR_FIELD), var_geti(VAR_CAT));
if ( cat_max_get( var_geti(VAR_FIELD) ) < var_geti(VAR_CAT) ) {
cat_max_set( var_geti(VAR_FIELD), var_geti(VAR_CAT) );
}
}
ret = Vect_write_line ( Map, type, Points, Cats );
for ( i = 0; i < Vect_get_num_updated_lines(Map); i++ )
G_debug (2, "Updated line: %d", Vect_get_updated_line( Map, i ) );
for ( i = 0; i < Vect_get_num_updated_nodes(Map); i++ )
G_debug (2, "Updated node: %d", Vect_get_updated_node( Map, i ) );
/* Reset category (this automaticaly resets cat for next not used) */
var_seti ( VAR_FIELD, var_geti ( VAR_FIELD ) );
if ( var_geti(VAR_CAT_MODE) != CAT_MODE_NO && var_geti(VAR_INSERT) && cat > 0 ) {
G_debug (2, "Insert new record" );
db_set_string (&html, "<HTML><HEAD><TITLE>Form</TITLE><BODY>");
field = var_geti(VAR_FIELD);
ret = new_record(field, cat);
if ( ret == -1 ) {
return -1;
} else if ( ret == 0 ) {
db_append_string (&html, "New record was created.<BR>");
} else { /* record already existed */
db_append_string (&html, "Record for this category already existed.<BR>");
}
/* Open form */
Fi = Vect_get_field( Map, field );
if ( Fi == NULL ) {
return -1;
}
F_generate ( Fi->driver, Fi->database, Fi->table, Fi->key, cat, NULL, NULL,
F_EDIT, F_HTML, &form);
db_append_string (&html, form );
db_append_string (&html, "</BODY></HTML>");
/* Note: F_open() must be run first time with closed monitor, otherwise next
* attempt to open driver hangs until form child process is killed */
if ( first_form ) driver_close();
F_clear ();
F_open ( "Attributes", db_get_string(&html) );
if ( first_form ) { driver_open(); first_form = 0; }
G_free (form);
db_free_string (&html);
}
return 0;
}
/* Snap to node */
int snap ( double *x, double *y )
{
int node;
double thresh;
G_debug (2, "snap(): x = %f, y = %f", *x, *y);
if ( !var_geti(VAR_SNAP) ) return 0;
if ( var_geti(VAR_SNAP_MODE) == SNAP_MAP ) {
thresh = var_getd(VAR_SNAP_MAP);
} else {
thresh = Scale * var_geti(VAR_SNAP_SCREEN);
}
node = Vect_find_node ( &Map, *x, *y, 0, thresh, 0 );
if ( node > 0 ) Vect_get_node_coor (&Map, node, x, y, NULL );
G_debug (2, "node = %d x = %f, y = %f", node, *x, *y);
return node;
}
/* Digitize new line */
int new_line ( int type )
{
int i, sxo = 0, syo = 0, sxn, syn;
int button, first, line, node1, node2;
double x, y;
char buf[1000];
struct line_pnts *Points;
struct line_cats *Cats;
G_debug (2, "new_line(): type = %d", type);
Points = Vect_new_line_struct ();
Cats = Vect_new_cats_struct ();
sprintf ( buf, "Digitize new %s:", get_line_type_name (type) );
i_prompt ( buf );
i_prompt_buttons ( "New point", "", "Quit tool");
i_new_line_options ( 1 );
driver_open();
first = 1;
sxn = COOR_NULL; syn = COOR_NULL;
while ( 1 ) {
/* Get next coordinate */
R_set_update_function ( update );
if ( first ) {
R_get_location_with_pointer ( &sxn, &syn, &button);
i_prompt_buttons ( "New point", "Undo last point", "Close line");
} else R_get_location_with_line (sxo, syo, &sxn, &syn, &button);
x = D_d_to_u_col ( sxn );
y = D_d_to_u_row ( syn );
G_debug (3, "button = %d x = %d = %f y = %d = %f", button, sxn, x, syn, y);
if ( button == 0 ) break; /* Tool broken by GUI */
if ( first && button == 3 ) { /* Quit tool ( points & lines ), first is always for points */
Tool_next = TOOL_NOTHING;
break;
}
if ( type & GV_POINTS ) {
/* We can get here with button = 1 or 2 -> the same write point */
snap ( &x, &y );
Vect_append_point ( Points, x, y, 0 );
write_line ( &Map, type, Points );
updated_lines_and_nodes_erase_refresh_display();
break;
} else { /* GV_LINES */
/* Button may be 1,2,3 */
if ( button == 1 ) { /* New point */
snap ( &x, &y );
Vect_append_point ( Points, x, y, 0 );
if ( type == GV_LINE ) symb_set_driver_color ( SYMB_LINE );
else symb_set_driver_color ( SYMB_BOUNDARY_0 );
display_points ( Points, 1);
sxo = D_u_to_d_col(x); syo = D_u_to_d_row (y);;
first = 0;
} else if ( button == 2 ) { /* Undo last point */
if ( Points->n_points >= 1 ) {
symb_set_driver_color ( SYMB_BACKGROUND );
display_points ( Points, 1);
Points->n_points--;
if ( type == GV_LINE ) symb_set_driver_color ( SYMB_LINE );
else symb_set_driver_color ( SYMB_BOUNDARY_0 );
display_points ( Points, 1);
sxo = D_u_to_d_col ( Points->x[Points->n_points - 1] );
syo = D_u_to_d_row ( Points->y[Points->n_points - 1] );
}
if ( Points->n_points == 0 ) {
i_prompt_buttons ( "New point", "", "Quit tool");
first = 1;
}
} else { /* button = 3 -> write the line and quit */
if ( Points->n_points > 1 ) {
/* Before the line is written, we must check if connected to existing nodes, if yes,
* such nodes must be add to update list before! the line is written (areas/isles */
node1 = Vect_find_node(&Map, Points->x[0], Points->y[0], Points->z[0], 0, Vect_is_3d(&Map));
i = Points->n_points - 1;
node2 = Vect_find_node(&Map, Points->x[i], Points->y[i], Points->z[i], 0, Vect_is_3d(&Map));
G_debug (2, " old node1 = %d old node2 = %d", node1, node2);
line = write_line ( &Map, type, Points );
updated_lines_and_nodes_erase_refresh_display();
} else G_warning ("Less than 2 points for line -> nothing written" );
break;
}
G_debug (2, "n_points = %d", Points->n_points);
}
}
driver_close();
i_prompt ("");
i_prompt_buttons ( "", "", "");
i_coor ( COOR_NULL, COOR_NULL);
i_new_line_options ( 0 );
G_debug (3, "new_line(): End");
return 1;
}
/* Delete line */
int delete_line (void)
{
int i, sxn, syn, line, last_line, node1, node2;
int button, first;
double x, y, thresh;
struct line_pnts *Points;
struct line_cats *Cats;
G_debug (2, "delete_line()");
Points = Vect_new_line_struct ();
Cats = Vect_new_cats_struct ();
i_prompt ( "Delete point, line, boundary, or centroid:");
i_prompt_buttons ( "Select", "Unselect", "Quit tool");
driver_open();
/* TODO: use some better threshold */
thresh = fabs ( D_d_to_u_col ( 10 ) - D_d_to_u_col ( 0 ) ) ;
G_debug (2, "thresh = %f", thresh );
line = 0;
first = 1;
last_line = 0;
sxn = COOR_NULL; syn = COOR_NULL;
while ( 1 ) {
/* Get next coordinate */
R_set_update_function ( update );
R_get_location_with_pointer ( &sxn, &syn, &button);
x = D_d_to_u_col ( sxn );
y = D_d_to_u_row ( syn );
G_debug (3, "button = %d x = %d = %f y = %d = %f", button, sxn, x, syn, y);
/* Display last highlighted in normal color */
if ( last_line > 0 ) {
display_line ( last_line, SYMB_DEFAULT, 1);
}
if ( button == 0 || button == 3 ) break; /* Quit tool */
if ( button == 1 ) { /* Confirm / select */
/* Delete last if any */
if ( last_line > 0 ) {
/* Erase line and nodes !!! (because if the line is not connected to any other, nodes will die */
display_line ( last_line, SYMB_BACKGROUND, 1 );
Vect_get_line_nodes ( &Map, line, &node1, &node2 );
G_debug (2, "delete line = %d node1 = %d node2 = %d", last_line, node1, node2);
display_node ( node1, SYMB_BACKGROUND, 1);
display_node ( node2, SYMB_BACKGROUND, 1);
Vect_read_line ( &Map, NULL, Cats, last_line );
Vect_delete_line ( &Map, last_line );
for ( i = 0 ; i < Cats->n_cats; i++ ) {
check_record ( Cats->field[i], Cats->cat[i] );
}
for ( i = 0; i < Vect_get_num_updated_lines(&Map); i++ )
G_debug (2, "Updated line: %d", Vect_get_updated_line( &Map, i ) );
for ( i = 0; i < Vect_get_num_updated_nodes(&Map); i++ )
G_debug (2, "Updated node: %d", Vect_get_updated_node( &Map, i ) );
updated_lines_and_nodes_erase_refresh_display();
}
/* Find neares point or line */
line = Vect_find_line (&Map, x, y, 0, GV_POINT|GV_CENTROID, thresh, 0, 0);
G_debug (2, "point found = %d", line );
if ( line == 0 ) line = Vect_find_line (&Map, x, y, 0, GV_LINE|GV_BOUNDARY, thresh, 0, 0);
G_debug (2, "line found = %d", line );
/* Display new selected line if any */
if ( line > 0 ) {
display_line ( line, SYMB_HIGHLIGHT, 1);
}
} else { /* button == 2 -> unselect */
line = 0;
}
if ( line > 0 )
i_prompt_buttons ( "Confirm and select next", "Unselect", "Quit tool");
else
i_prompt_buttons ( "Select", "Unselect", "Quit tool");
last_line = line;
first = 0;
}
driver_close();
i_prompt ("");
i_prompt_buttons ( "", "", "");
i_coor ( COOR_NULL, COOR_NULL);
G_debug (3, "delete_line(): End");
return 1;
}
/* Move line */
int move_line (void)
{
int i, sxn, syn, sxo = 0, syo = 0, line, last_line, node1, node2, type;
int button, first;
double x, y, thresh, xo, yo;
struct line_pnts *Points;
struct line_cats *Cats;
G_debug (2, "move_line()");
Points = Vect_new_line_struct ();
Cats = Vect_new_cats_struct ();
i_prompt ( "Move point, line, boundary, or centroid:");
driver_open();
/* TODO: use some better threshold */
thresh = fabs ( D_d_to_u_col ( 10 ) - D_d_to_u_col ( 0 ) ) ;
G_debug (2, "thresh = %f", thresh );
first = 1;
last_line = 0;
sxn = COOR_NULL; syn = COOR_NULL;
while ( 1 ) {
/* Get next coordinate */
R_set_update_function ( update );
if ( last_line == 0 ) {
i_prompt_buttons ( "Select", "", "Quit tool");
R_get_location_with_pointer ( &sxn, &syn, &button);
} else R_get_location_with_line (sxo, syo, &sxn, &syn, &button);
if ( last_line > 0 ) {
display_line ( last_line, SYMB_DEFAULT, 1);
}
x = D_d_to_u_col ( sxn );
y = D_d_to_u_row ( syn );
G_debug (3, "button = %d x = %d = %f y = %d = %f", button, sxn, x, syn, y);
if ( button == 0 || button == 3 ) break;
if ( button == 1 ) { /* Select / new location */
if ( last_line == 0 ) { /* Select line */
line = Vect_find_line (&Map, x, y, 0, GV_POINT|GV_CENTROID, thresh, 0, 0);
G_debug (2, "point found = %d", line );
if ( line == 0 ) line = Vect_find_line (&Map, x, y, 0, GV_LINE|GV_BOUNDARY, thresh, 0, 0);
G_debug (2, "line found = %d", line );
/* Display new selected line if any */
if ( line > 0 ) {
display_line ( line, SYMB_HIGHLIGHT, 1);
/* Find the nearest point on the line */
type = Vect_read_line ( &Map, Points, NULL, line );
Vect_line_distance ( Points, x, y, 0, 0, &xo, &yo, NULL, NULL, NULL, NULL );
sxo = D_u_to_d_col ( xo ) ;
syo = D_u_to_d_row ( yo );
i_prompt_buttons ( "New location", "Unselect", "Quit tool");
}
last_line = line;
} else { /* Line is already selected */
display_line ( last_line, SYMB_BACKGROUND, 1);
Vect_get_line_nodes ( &Map, last_line, &node1, &node2 );
display_node ( node1, SYMB_BACKGROUND, 1);
display_node ( node2, SYMB_BACKGROUND, 1);
type = Vect_read_line ( &Map, Points, Cats, last_line );
for ( i = 0; i < Points->n_points; i++ ) {
Points->x[i] = Points->x[i] + x - xo;
Points->y[i] = Points->y[i] + y - yo;
}
Vect_rewrite_line(&Map, last_line, type, Points, Cats);
updated_lines_and_nodes_erase_refresh_display();
last_line = 0;
}
}
if ( button == 2 ) { /* Unselect */
if ( last_line > 0 ) {
last_line = 0;
}
}
}
driver_close();
i_prompt ("");
i_prompt_buttons ( "", "", "");
i_coor ( COOR_NULL, COOR_NULL);
G_debug (3, "move_line(): End");
return 1;
}
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