void read_node_desc_from_pvm(dg_node *nod, window *win)
{
int key;
receive_int_array(&nod->node_id, 1);
receive_int_array(&nod->posx, 1);
receive_int_array(&nod->posy, 1);
receive_int_array(&key, 1);
if ( key & 0x08 ){
receive_str(nod->weight);
}else{
*nod->weight = 0;
}
if ( key & 0x04 ) {
receive_str(nod->label);
} else {
sprintf(nod->label, "%i", nod->node_id);
}
if ( key & 0x02 ) {
receive_str(nod->dash);
} else {
strcpy(nod->dash, win->desc.node_dash);
}
if ( key & 0x01 ) {
receive_int_array(&nod->radius, 1);
} else {
nod->radius = win->desc.node_radius;
}
nod->deleted = FALSE;
}
void set_window_desc_pvm(int key, window *win)
{
win_desc *desc = &win->desc;
switch ( key ) {
case CANVAS_WIDTH:
receive_int_array(&desc->canvas_width, 1);
break;
case CANVAS_HEIGHT:
receive_int_array(&desc->canvas_height, 1);
break;
case VIEWABLE_WIDTH:
receive_int_array(&desc->viewable_width, 1);
break;
case VIEWABLE_HEIGHT:
receive_int_array(&desc->viewable_height, 1);
break;
case DISP_NODELABELS:
receive_int_array(&desc->disp_nodelabels, 1);
break;
case DISP_NODEWEIGHTS:
receive_int_array(&desc->disp_nodeweights, 1);
break;
case DISP_EDGEWEIGHTS:
receive_int_array(&desc->disp_edgeweights, 1);
break;
case NODE_DASH:
receive_str(desc->node_dash);
break;
case EDGE_DASH:
receive_str(desc->edge_dash);
break;
case NODE_RADIUS:
receive_int_array(&desc->node_radius, 1);
break;
case INTERACTIVE_MODE:
receive_int_array(&desc->interactive_mode, 1);
break;
case MOUSE_TRACKING:
receive_int_array(&desc->mouse_tracking, 1);
break;
case SCALE_FACTOR:
receive_dbl_array(&desc->scale_factor, 1);
break;
case NODELABEL_FONT:
receive_str(desc->nodelabel_font);
break;
case NODEWEIGHT_FONT:
receive_str(desc->nodeweight_font);
break;
case EDGEWEIGHT_FONT:
receive_str(desc->edgeweight_font);
break;
}
}
void read_edge_desc_from_pvm(dg_edge *edg, window *win)
{
int key;
receive_int_array(&edg->edge_id, 1);
receive_int_array(&edg->tail, 1);
receive_int_array(&edg->head, 1);
receive_int_array(&key, 1);
if ( key & 0x08 ){
receive_str(edg->weight);
}else{
*edg->weight = 0;
}
if ( key & 0x02 ) {
receive_str(edg->dash);
} else {
strcpy(edg->dash, win->desc.edge_dash);
}
edg->deleted = FALSE;
}
int main(void)
{
uint32_t i;
char c;
char s1[64], s2[64];
uint8_t bufb[512];
init_serial();
lcd_init();
lcd_printf("Hello World! \n n: %d", 152);
// init card
send_str("\ninit mmc card: ");
c = mmc_init();
if (c) {
send_str("failed (");
send_int(c);
send_str(")\n");
} else {
send_str("success\n");
init_partition(0);
c = 'h';
while (1) {
switch (c) {
case 'l' :
ls();
break;
case 'c' :
send_str("dir: ");
receive_str(s1);
cd(s1);
break;
case 'r' :
send_str("rename file: ");
receive_str(s1);
send_str("new name: ");
receive_str(s2);
rn(s1, s2);
break;
case 'd' :
send_str("delete file: ");
receive_str(s1);
del(s1);
break;
case 'p' :
send_str("file: ");
receive_str(s1);
cat(s1);
break;
case 't' :
send_str("name: ");
receive_str(s1);
touch(s1);
break;
case 's' :
send_str("sector: 0x");
i = receive_hex();
if (mmc_readsector(i, bufb)) {
send_str("error reading sector\n");
} else {
dump_sector(bufb);
send_char('\n');
}
break;
case 'h' :
default :
send_str("h - help\nl - dir listing\nc - change dir\nd - delete file\np - print file contents\nt - create empty file\ns - dump sector\n");
break;
}
// prompt
send_str("> ");
c = receive_char();
send_char('\n');
}
}
while (1) ;
return 0;
}
int main (int argc, char* argv[])
{
struct gps_location gl1 , gl2;
struct gps_displacement gd;
struct fatwrite_t fout;
char logging_state = 0;
char flag_reset = 0;
gps_init_serial();
lcd_init();
camera_init();
camera_sleep();
lcd_printf("sd card:\nconnecting");
char rt = mmc_init();
if (rt) {
lcd_printf("sd card: error\n");
while (1) ;
}
init_partition(0);
init_logtoggle();
lcd_printf("GPS ...");
gps_disable_unwanted();
char in[64];
int i, img_counter = 0;
char c = 0;
char loading_map[] = {'-', '\\', '|', '/'};
const char * fpic;
while (1) {
// wait until valid location
do {
receive_str(in);
gps_log_data(in , &gl1);
lcd_printf("GPS Fixing %c\n", loading_map[(c++)&0x3]);
} while (gl1.status != 'A');
// got fix
lcd_printf("Acquired Fix");
// compute displacement
while (1) {
// read in gps data
receive_str(in);
if (flag_reset) {
// reset waypoint
gps_log_data(in, &gl1);
flag_reset = 0;
}
i = gps_log_data(in , &gl2);
// end log
if (logging_state && !CHECK_LOGTOGGLE()) {
logging_state = 0;
lcd_printf("log: finishing..\n");
log_end(&fout);
}
// check if we have a fix
if (gl2.status != 'A') {
lcd_printf("Lost GPS Fix %c\n", loading_map[(c++)&0x3]);
continue;
}
// compute and display gps data
gps_calc_disp(&gl1, &gl2, &gd);
lcd_printf("I: %d\xb2 F: %d\xb2\nMg: %dm Sp: %d",
(int)gd.initial_bearing,
(int)gd.final_bearing,
(int)gd.magnitude,
(int)(1.15*gl2.sog + 0.5));
// start / update logging
if (logging_state) {
// add to log
fpic = gps_gen_name(img_counter++);
camera_init();
camera_takephoto(fpic, &fout);
camera_sleep();
log_add(&fout, &gl2, &gd, fpic);
} else if (CHECK_LOGTOGGLE()) {
// start logging
logging_state = 1;
flag_reset = 1;
img_counter = 0;
log_start(&fout);
}
}
}
return 0;
}
void shell(void *userdata)
{
receive_str();
}
int main(void)
{
dg_prob *dgp;
dg_params *par;
FILE *read_from, *write_to;
int childpid, sender;
char tcl_msg[MAX_LINE_LENGTH +1];
char name[MAX_NAME_LENGTH +1], name2[MAX_NAME_LENGTH +1];
char source[MAX_NAME_LENGTH +1], target[MAX_NAME_LENGTH +1];
char title[MAX_TITLE_LENGTH +1], title2[MAX_TITLE_LENGTH +1];
char fname[MAX_FILE_NAME_LENGTH +1];
char old_weight[MAX_WEIGHT_LENGTH +1], new_weight[MAX_WEIGHT_LENGTH +1];
char new_label[MAX_LABEL_LENGTH +1];
char new_dash[MAX_DASH_PATTERN_LENGTH +1];
char *str;
int msgtag, keyword, key, r_bufid, s_bufid, bufid, bytes, len;
int i, j, k, number, add_nodenum, change_nodenum, delete_nodenum;
int add_edgenum, change_edgenum, delete_edgenum;
int nodenum, new_nodenum, edgenum, new_edgenum, node_id, edge_id;
int new_radius, old_deleted_nodenum;
unsigned int id;
win_desc *desc;
dg_graph *g;
dg_node *nodes, *nod;
dg_edge *edges, *edg;
window *win, *new_win, *source_win, *target_win;
register_process();
dgp = (dg_prob *) calloc(1, sizeof(dg_prob));
/* receive parameters from the master */
r_bufid = receive_msg(ANYONE, DG_DATA);
bufinfo(r_bufid, &bytes, &msgtag, &dgp->master);
receive_char_array((char *)&dgp->par, sizeof(dg_params));
freebuf(r_bufid);
par = &(dgp->par);
echo_commands = par->echo_commands;
/* fork the wish shell */
childpid = start_child((char *)"wish", &read_from, &write_to);
/* Source the tcl scripts into wish and invoke startUp*/
spprint(write_to, "source %s/Init.tcl\n", par->source_path);
spprint(write_to, "source %s/Tools.tcl\n", par->source_path);
spprint(write_to, "source %s/NodeEdgeBasics.tcl\n", par->source_path);
spprint(write_to, "source %s/FileMenu.tcl\n", par->source_path);
spprint(write_to, "source %s/WindowMenu.tcl\n", par->source_path);
spprint(write_to, "source %s/NodeMenu.tcl\n", par->source_path);
spprint(write_to, "source %s/EdgeMenu.tcl\n", par->source_path);
spprint(write_to, "source %s/CAppl.tcl\n", par->source_path);
spprint(write_to, "Igd_StartUp\n");
/* set application defaults to those stored in par */
spprint(write_to,
"Igd_SetApplDefaults %i %i %i %i %i %i %i {%s} {%s} %i %i %i %f {%s} {%s} {%s}\n",
par->canvas_width, par->canvas_height, par->viewable_width,
par->viewable_height, par->disp_nodelabels,
par->disp_nodeweights, par->disp_edgeweights, par->node_dash,
par->edge_dash, par->node_radius, par->interactive_mode,
par->mouse_tracking, par->scale_factor, par->nodelabel_font,
par->nodeweight_font, par->edgeweight_font);
/* invoke user initialization */
#ifdef USE_SYM_APPLICATION
CALL_USER_FUNCTION( user_initialize_dg(&dgp->user) );
#endif
while(TRUE){
msgtag = 0;
if (dgp->waiting_to_die){
for ( i = 0; i < dgp->window_num; ){
if ( ! dgp->windows[i]->wait_for_click ){
spprint(write_to, "Igd_QuitWindow %u\n",dgp->windows[i]->id);
free_window(&dgp->window_num, dgp->windows, i);
}else{
i++;
}
}
if ( ! dgp->window_num )
wait_for_you_can_die(dgp, write_to);
}
/* Interpret message coming from the tcl application. */
if (fgets(tcl_msg, 80, read_from) != NULL) {
sscanf(tcl_msg, "%i", &msgtag);
switch(msgtag){
case IGDTOI_CLICK_HAPPENED:
/* if wait_for_click is 2, send a message to the owner */
fgets(name2, MAX_NAME_LENGTH +1, read_from);
sscanf(name2, "%u", &id);
for (i = dgp->window_num - 1; i >= 0; i-- )
if ( dgp->windows[i]->id == id )
break;
if ( i < 0 ) {
/* this should never happen */
printf("Window of id %u is not found\n", id);
break;
}
if ( dgp->windows[i]->wait_for_click == 2 ) {
s_bufid = init_send(DataInPlace);
send_str(name);
send_msg(dgp->windows[i]->owner_tid, ITOC_CLICK_HAPPENED);
freebuf(s_bufid);
}
dgp->windows[i]->wait_for_click = 0;
break;
case IGDTOI_QUIT_WINDOW:
/* delete data structure corresponding to this window */
fgets(name2, MAX_NAME_LENGTH +1, read_from);
sscanf(name2, "%u", &id);
for (i = dgp->window_num - 1; i >= 0; i-- )
if ( dgp->windows[i]->id == id )
break;
if ( i < 0 ) {
/* this should never happen */
printf("Window of id %u is not found\n", id);
break;
}
spprint(write_to, "Igd_QuitWindow %u\n", id);
free_window(&dgp->window_num, dgp->windows, i);
break;
case IGDTOI_QUIT_APPLICATION:
/* delete all windows */
for ( i = 0; i < dgp->window_num; ){
if ( ! dgp->windows[i]->wait_for_click ){
spprint(write_to, "Igd_QuitWindow %u\n",dgp->windows[i]->id);
free_window(&dgp->window_num, dgp->windows, i);
}else{
i++;
}
}
dgp->waiting_to_die = TRUE;
break;
case IGDTOI_TEXT_ENTERED:
fgets(name2, MAX_NAME_LENGTH +1, read_from);
sscanf(name2, "%u", &id);
for (i = dgp->window_num - 1; i >= 0; i-- )
if ( dgp->windows[i]->id == id )
break;
win = dgp->windows[i];
if ( i < 0 ) {
/* this should never happen */
printf("Window of id %u is not found\n", id);
break;
}
fgets(tcl_msg, MAX_LINE_LENGTH +1, read_from);
sscanf(tcl_msg, "%i", &win->text_length);
win->text = (char *) malloc( (win->text_length + 1) * CSIZE);
fread(win->text, CSIZE, win->text_length, read_from);
win->text[win->text_length] = 0;
/* invoke function that interprets the message */
#ifdef USE_SYM_APPLICATION
CALL_USER_FUNCTION( user_interpret_text(dgp->user,
win->text_length,
win->text,
win->owner_tid) );
#endif
break;
case IGDTOI_REQUEST_GRAPH:
fgets(name2, MAX_NAME_LENGTH +1, read_from);
sscanf(name2, "%u", &id);
for (i = dgp->window_num - 1; i >= 0; i-- )
if ( dgp->windows[i]->id == id )
break;
if ( i < 0 ) {
/* this should never happen */
printf("Window of id %u is not found\n", id);
break;
}
display_graph_on_canvas(dgp->windows[i], write_to);
break;
default:
printf("Unknown message type from IGD to I (%i)\n", msgtag);
break;
} /* end switch */
} /* end if */
if (dgp->waiting_to_die)
continue;
/* Interpret the message coming from the C application.
All the messages except INITIALIZE_WINDOW and COPY_GRAPH
and QUIT will be put on the pipe corresponding to the appropriate
window (messages are processed in FIFO order
In case of INITIALIZE_WINDOW the data structure associated
with a winow is created (including the pipes.
In case of COPY_GRAPH a message must be placed on both the
source and the target window's pipe.
In case of QUIT all data structures are disassembled and then
the tcl application is killed. */
r_bufid = nreceive_msg(ANYONE, ANYTHING);
if (r_bufid > 0){
bufinfo(r_bufid, &bytes, &msgtag, &sender);
switch (msgtag){
case CTOI_INITIALIZE_WINDOW:
/* get the name of the new window */
receive_str(name);
receive_str(title);
/* if a window with this name already exists: error */
i = find_window(dgp->window_num, dgp->windows, name);
if ( i >= 0 ) {
INTERMED_ERROR(name, msgtag, sender,ITOC_WINDOW_ALREADY_EXISTS);
freebuf(r_bufid);
break;
}
/* allocate space for the new window */
win = init_dgwin(dgp, sender, name, title);
/* set up the window description */
receive_int_array(&number, 1);
copy_win_desc_from_par(win, &dgp->par);
for ( ; number > 0; number-- ) {
/* read out the key - value pairs */
receive_int_array(&key, 1);
set_window_desc_pvm(key, win);
}
freebuf(r_bufid);
break;
case CTOI_COPY_GRAPH:
/* Copy source's graph into target's window.
Here a message is placed onto both target's and source's
pipe so that they can wait for each other before the
actual copying happens (shake hands) */
receive_str(target);
receive_str(source);
i = find_window(dgp->window_num, dgp->windows, target);
if (i < 0) { /* target doesn't exist, send error message */
INTERMED_ERROR(target, msgtag, sender,ITOC_WINDOW_DOESNT_EXIST);
freebuf(r_bufid);
break;
}
j = find_window(dgp->window_num, dgp->windows, source);
if (j < 0) { /* source doesn't exist, send error message */
INTERMED_ERROR(source, msgtag, sender,ITOC_WINDOW_DOESNT_EXIST);
freebuf(r_bufid);
break;
}
bufid = init_send(DataInPlace);
msgtag = WAITING_TO_GET_A_COPY;
send_int_array(&msgtag, 1);
send_str(source);
add_msg(dgp->windows[i], bufid);
setsbuf(0);
bufid = init_send(DataInPlace);
msgtag = WAITING_TO_BE_COPIED;
send_int_array(&msgtag, 1);
send_str(target);
add_msg(dgp->windows[j], bufid);
setsbuf(0);
freebuf(r_bufid);
break;
case CTOI_QUIT:
/* quit from all windows, disassemble data structures.
* (actually, this will happen on the top of the while loop...) */
if (! dgp->waiting_to_die)
dgp->waiting_to_die = TRUE;
freebuf(r_bufid);
break;
case CTOI_YOU_CAN_DIE:
/* quit from all windows, disassemble data structures.
* (actually, this will happen on the top of the while loop...)
* and die */
dgp->waiting_to_die = 2 * TRUE;
freebuf(r_bufid);
break;
default:
/* Check if window with name exists. If not, send back error
message. If yes, copy the message over to window's pipe. */
receive_str(name);
len = strlen(name);
i = find_window(dgp->window_num, dgp->windows, name);
if (i < 0){
/* there is no window of that name: send error message */
INTERMED_ERROR(name, msgtag, sender,ITOC_WINDOW_DOESNT_EXIST);
freebuf(r_bufid);
break;
}
add_msg(dgp->windows[i], r_bufid);
setrbuf(0);
break;
} /* end switch */
} /* endif r_bufid > 0 */
if (dgp->waiting_to_die)
continue;
/* Process one message from each window's pipe. */
for ( i = 0; i < dgp->window_num; i++ ) {
win = dgp->windows[i];
/* if wait_for_click is set, skip */
if ( win->wait_for_click )
continue;
/* if window is waiting to be copied or waiting to get a copy, skip */
if ( win->copy_status )
continue;
/* if no message in the pipe, skip */
if (win->buf.bufread == -1)
continue;
/* else: process the message .... */
msgtag = 0;
r_bufid = get_next_msg(win);
setrbuf(r_bufid);
bufinfo(r_bufid, &bytes, &msgtag, &sender);
if (msgtag == 0){
/* This means that the message was locally 'hand-packed' */
receive_int_array(&msgtag, 1);
}
switch ( msgtag ) {
case CTOI_USER_MESSAGE:
#ifdef USE_SYM_APPLICATION
user_dg_process_message(win->user, win, write_to);
#endif
break;
case CTOI_QUIT_WINDOW:
/* delete this window */
spprint(write_to, "Igd_QuitWindow %u\n", win->id);
free_window(&dgp->window_num, dgp->windows, i);
i--;
break;
case CTOI_CHANGE_WINDOW_DESC:
/* change window descriptions */
receive_int_array(&number, 1);
for ( ; number > 0; number-- ) {
/* read out the key - value pairs */
receive_int_array(&key, 1);
set_window_desc_pvm(key, win);
}
desc = &(win->desc);
if ( win->window_displayed ) {
spprint(write_to, "Igd_SetAndExecuteWindowDesc %u %i %i %i %i %i %i %i {%s} {%s} %i %i %i %f {%s} {%s} {%s}\n",
win->id, desc->canvas_width, desc->canvas_height,
desc->viewable_width, desc->viewable_height,
desc->disp_nodelabels, desc->disp_nodeweights,
desc->disp_edgeweights, desc->node_dash,
desc->edge_dash, desc->node_radius,
desc->interactive_mode, desc->mouse_tracking,
desc->scale_factor, desc->nodelabel_font,
desc->nodeweight_font, desc->edgeweight_font);
}
break;
case CTOI_SET_GRAPH:
case CTOI_SET_AND_DRAW_GRAPH:
/* define the graph corresponding to this window */
g = &(win->g);
FREE(g->nodes);
FREE(g->edges);
receive_int_array(&g->nodenum, 1);
if ( g->nodenum ) {
nodes = g->nodes =
(dg_node *) malloc(g->nodenum * sizeof(dg_node));
for ( j = 0; j < g->nodenum; j++ ) {
read_node_desc_from_pvm(nodes+j, win);
}
}
receive_int_array(&g->edgenum, 1);
if ( g->edgenum ) {
edges = g->edges =
(dg_edge *) malloc(g->edgenum * sizeof(dg_edge));
for ( j = 0; j < g->edgenum; j++ ) {
read_edge_desc_from_pvm(edges+j, win);
}
}
if ( msgtag == CTOI_SET_AND_DRAW_GRAPH || win->window_displayed )
display_graph_on_canvas(win, write_to);
break;
case CTOI_DRAW_GRAPH:
/* first erase/create the window itself, then display all the nodes
and edges */
display_graph_on_canvas(win, write_to);
break;
case CTOI_DELETE_GRAPH:
/* delete the data structure of the graph and erase its window
if open */
FREE(win->g.nodes);
FREE(win->g.edges);
win->g.nodenum = win->g.deleted_nodenum = 0;
win->g.edgenum = win->g.deleted_edgenum = 0;
if ( win->window_displayed ){
spprint(write_to, "Igd_EraseWindow %u\n", win->id);
}
break;
case CTOI_WAIT_FOR_CLICK_NO_REPORT:
/* window will not get any messages until the Continue button
is pressed. the window has to be open to have an effect */
if ( win->window_displayed ) {
win->wait_for_click = 1;
spprint(write_to, "Igd_CApplWaitForClick %u\n", win->id);
} else {
INTERMED_ERROR(win->name, msgtag, win->owner_tid,
ITOC_WINDOW_ISNT_DISPLAYED);
}
break;
case CTOI_WAIT_FOR_CLICK_AND_REPORT:
/* window will not get any messages until the Continue button
is pressed. the window has to be open to have an effect.
the owner gets a message */
if ( win->window_displayed ) {
win->wait_for_click = 2;
spprint(write_to, "Igd_CApplWaitForClick %u\n", win->id);
} else {
INTERMED_ERROR(win->name, msgtag, win->owner_tid,
ITOC_WINDOW_ISNT_DISPLAYED);
}
break;
case CTOI_SAVE_GRAPH_TO_FILE:
/* save the graph into a file (only if it is displayed!) */
receive_str(fname);
if ( win->window_displayed ) {
spprint(write_to, "Igd_SaveGraph %u {%s}\n", win->id, fname);
} else {
INTERMED_ERROR(win->name, msgtag, win->owner_tid,
ITOC_WINDOW_ISNT_DISPLAYED);
}
break;
case CTOI_SAVE_GRAPH_PS_TO_FILE:
/* save postscript of the picture displayed. works only if
window is displayed. */
receive_str(fname);
if ( win->window_displayed ) {
spprint(write_to, "Igd_SavePs %u {%s}\n", win->id, fname);
} else {
INTERMED_ERROR(win->name, msgtag, win->owner_tid,
ITOC_WINDOW_ISNT_DISPLAYED);
}
break;
case CTOI_CLONE_WINDOW:
/* clone this window. if window is not displayed, only the
graph data structure will be copied over. */
/* wait_for_click, copy_status and text will not be copied over. */
receive_str(name2);
receive_str(title2);
if ( find_window(dgp->window_num, dgp->windows, name2) >= 0 ) {
INTERMED_ERROR(win->name, msgtag, sender,
ITOC_WINDOW_ALREADY_EXISTS);
break;
}
new_win = init_dgwin(dgp, sender, name2, title2);
copy_window_structure(new_win, win);
if ( win->window_displayed ) {
spprint(write_to,
"Igd_CopyWindowDesc %u %u\n", new_win->id, win->id);
spprint(write_to,
"Igd_InitWindow %u {%s}\n", new_win->id, title2);
spprint(write_to, "Igd_DisplayWindow %u\n", new_win->id);
spprint(write_to, "Igd_EnableCAppl %u\n", new_win->id);
spprint(write_to, "Igd_CopyGraph %u %u\n", new_win->id,win->id);
new_win->window_displayed = 1;
}
break;
case CTOI_RENAME_WINDOW:
/* change the title of the window */
receive_str(win->title);
if ( win->window_displayed ){
spprint(write_to,
"Igd_RenameWindow %u {%s}\n", win->id, win->title);
}
break;
case CTOI_RESIZE_VIEWABLE_WINDOW:
/* change the sizes of canvas */
receive_int_array(&win->desc.viewable_width, 1);
receive_int_array(&win->desc.viewable_height, 1);
if ( win->window_displayed ){
spprint(write_to, "Igd_ResizeViewableWindow %u %i %i\n",
win->id, win->desc.viewable_width,
win->desc.viewable_height);
}
break;
case CTOI_RESIZE_CANVAS:
/* change the size of the canvas */
receive_int_array(&win->desc.canvas_width, 1);
receive_int_array(&win->desc.canvas_height, 1);
if ( win->window_displayed ){
spprint(write_to, "Igd_ResizeCanvas %u %i %i\n", win->id,
win->desc.canvas_width, win->desc.canvas_height);
}
break;
case WAITING_TO_GET_A_COPY:
/* Read out the name of the source-graph from the pipe.
If the source-graph is waiting to be copied, source and
target have found each other */
receive_str(win->source) ;
win->copy_status = 2;
j = find_window(dgp->window_num, dgp->windows, win->source);
if ( j >= 0 && dgp->windows[j]->copy_status == 1 ) {
/* source graph exists and it is waiting to be copied */
source_win = dgp->windows[j];
/* copy the data structure */
copy_window_structure(win, source_win);
/* if the window is displayed, change picture */
if ( win->window_displayed ) {
display_graph_on_canvas(win, write_to);
}
/* zero out the copy stati */
win->copy_status = 0;
win->source[0] = 0;
source_win->copy_status = 0;
source_win->target[0] = 0;
}
break;
case WAITING_TO_BE_COPIED:
/* Read out the name of the target graph from the pipe.
If the target-graph is waiting to get a copy, source and
target have found each other. */
receive_str(win->target);
win->copy_status = 1;
j = find_window(dgp->window_num, dgp->windows, win->target);
if ( j >= 0 && dgp->windows[j]->copy_status == 2 ) {
/* target exists and waiting for a copy */
target_win = dgp->windows[j];
/* copy the data structure */
copy_window_structure(target_win, win);
/* if the target window is displayed, update the picture */
if ( target_win->window_displayed ) {
display_graph_on_canvas(target_win, write_to);
}
/* zero out the copy stati */
win->copy_status = 0;
win->target[0] = 0;
target_win->copy_status = 0;
target_win->source[0] = 0;
}
break;
case CTOI_MODIFY_GRAPH:
/* Make changes in the graph. The data structure is updated,
and if the window is displayed, the picture gets updated, too */
/* The message is in keyword - description pairs, with the
END_OF_MESSAGE keyword at the end. We switch on the keyword */
do {
receive_int_array(&keyword, 1);
switch ( keyword ) {
case MODIFY_ADD_NODES:
/* same format as in SET_GRAPH */
receive_int_array(&add_nodenum, 1);
if ( add_nodenum ) {
g = &(win->g);
nodenum = g->nodenum;
nodes = g->nodes = (dg_node *)
realloc(g->nodes,
(nodenum + add_nodenum) * sizeof(dg_node));
for (j = 0, new_nodenum = nodenum; j < add_nodenum; j++) {
read_node_desc_from_pvm(nodes+new_nodenum, win);
if (find_node(nodes[new_nodenum].node_id, g) < 0)
new_nodenum++;
}
g->nodenum = new_nodenum;
if ( win->window_displayed ) {
for ( j = nodenum; j < new_nodenum; j++ ) {
nod = nodes + j;
spprint(write_to,
"Igd_MakeNode %u %i %i %i {%s} {%s} %i\n",
win->id, nod->node_id, nod->posx,
nod->posy, nod->label, nod->dash,
nod->radius);
if ( *nod->weight != 0 ){
spprint(write_to,
"Igd_MakeNodeWeight %u %i {%s}\n",
win->id, nod->node_id, nod->weight);
}
}
}
}
break;
case MODIFY_CHANGE_WEIGHTS_OF_NODES:
/* change weights of nodes. nodes not in the graph or nodes
already deleted are skipped, no error message is given. */
g = &(win->g);
receive_int_array(&change_nodenum, 1);
for ( j = 0; j < change_nodenum; j++ ) {
receive_int_array(&node_id, 1);
receive_str(new_weight);
if ( (k = find_node(node_id, g)) >= 0 ) {
strcpy(g->nodes[k].weight, new_weight);
if ( win->window_displayed ) {
strcpy(old_weight, g->nodes[k].weight);
if ( *old_weight != 0 ) {
if ( *new_weight != 0 ) {
spprint(write_to,
"Igd_ChangeOneNodeWeight %u %i {%s}\n"
, win->id, node_id, new_weight);
} else {
/* new weight == 0 */
spprint(write_to,
"Igd_DeleteNodeWeight %u %i\n",
win->id, node_id);
}
} else {
/* no weight before */
if ( *new_weight != 0 ) {
spprint(write_to,
"Igd_MakeNodeWeight %u %i {%s}\n",
win->id, node_id, new_weight);
}
}
}
}
}
break;
case MODIFY_CHANGE_LABELS_OF_NODES:
/* change labels of nodes. nodes not in the graph or nodes
already deleted are skipped, no error message is given */
g = &(win->g);
receive_int_array(&change_nodenum, 1);
for ( j = 0; j < change_nodenum; j++ ) {
receive_int_array(&node_id, 1);
receive_str(new_label);
if ( (k = find_node(node_id, g)) >= 0 ) {
strcpy(g->nodes[k].label, new_label);
if ( win->window_displayed ) {
spprint(write_to,
"Igd_ChangeOneNodeLabel %u %i {%s}\n",
win->id, node_id, new_label);
}
}
}
break;
case MODIFY_CHANGE_DASH_OF_NODES:
/* change dash pattern of individual nodes. nodes not in the
graph will not cause error messages */
g = &(win->g);
receive_int_array(&change_nodenum, 1);
for ( j = 0; j < change_nodenum; j++ ) {
receive_int_array(&node_id, 1);
receive_str(new_dash);
if ( (k = find_node(node_id, g)) >= 0 ) {
strcpy(g->nodes[k].dash, new_dash);
if ( win->window_displayed ){
spprint(write_to,
"Igd_ChangeOneNodeDash %u %i {%s}\n",
win->id, node_id, new_dash);
}
}
}
break;
case MODIFY_CHANGE_RADII_OF_NODES:
/* change radii of individual nodes. nodes not in the
graph will not cause error messages */
g = &(win->g);
receive_int_array(&change_nodenum, 1);
for ( j = 0; j < change_nodenum; j++ ) {
receive_int_array(&node_id, 1);
receive_int_array(&new_radius, 1);
if ( (k = find_node(node_id, g)) >= 0 ) {
g->nodes[k].radius = new_radius;
if ( win->window_displayed ){
spprint(write_to,
"Igd_ChangeOneNodeRadius %u %i %i\n",
win->id, node_id, new_radius);
}
}
}
break;
case MODIFY_DELETE_NODES:
/* nodes not in the graph will not cause error messages */
receive_int_array(&delete_nodenum, 1);
if ( delete_nodenum ) {
g = &(win->g);
old_deleted_nodenum = g->deleted_nodenum;
for ( j = 0; j < delete_nodenum; j++ ) {
receive_int_array(&node_id, 1);
if ( (k = find_node(node_id, g)) >= 0 ) {
g->nodes[k].deleted = 1;
g->deleted_nodenum++;
if ( win->window_displayed ){
spprint(write_to,
"Igd_DeleteNode %u %i\n", win->id,
node_id);
}
}
}
if ( g->deleted_nodenum > old_deleted_nodenum ) {
/* mark edges that have at least one deleted endpoint
to be deleted. Igd_DeleteNode already took care of
deleting these edges from the picture */
for (k=g->edgenum-1, edg=g->edges; k >= 0; k--, edg++)
if ( ! edg->deleted &&
((find_node(edg->tail, g) < 0) ||
(find_node(edg->head, g) < 0))){
edg->deleted = 1;
g->deleted_edgenum++;
}
}
/* if too many nodes and/or edges have been deleted,
compress the graph */
if ( g->deleted_nodenum > 0.1 * g->nodenum ||
g->deleted_edgenum > 0.1 * g->edgenum )
compress_graph(g);
}
break;
case MODIFY_ADD_EDGES:
/* same format as in SET_GRAPH. Nonvalid edges (one or
both endpoints is not in the graph will not cause an error
message. */
receive_int_array(&add_edgenum, 1);
if ( add_edgenum ) {
g = &(win->g);
edgenum = g->edgenum;
edges = g->edges = (dg_edge *)
realloc(g->edges,
(edgenum+add_edgenum)*sizeof(dg_edge));
for (j = 0, new_edgenum = edgenum; j < add_edgenum; j++) {
edg = edges + new_edgenum;
read_edge_desc_from_pvm(edg, win);
if ((find_edge(edg->edge_id, g) < 0) &&
(find_node(edg->tail, g) >= 0) &&
(find_node(edg->head, g) >= 0))
new_edgenum++;
}
g->edgenum = new_edgenum;
if ( win->window_displayed ) {
for ( j = edgenum; j < new_edgenum; j++ ) {
edg = edges + j;
spprint(write_to, "Igd_MakeEdge %u %i %i %i {%s}\n",
win->id, edg->edge_id, edg->tail,
edg->head, edg->dash);
if ( *edg->weight != 0 ){
spprint(write_to,
"Igd_MakeEdgeWeight %u %i {%s}\n",
win->id, edg->edge_id, edg->weight);
}
}
}
}
break;
case MODIFY_CHANGE_WEIGHTS_OF_EDGES:
/* change weights of edges. edges not in the graph or edges
already deleted are skipped, no error message is given. */
g = &(win->g);
receive_int_array(&change_edgenum, 1);
for ( j = 0; j < change_edgenum; j++ ) {
receive_int_array(&edge_id, 1);
receive_str(new_weight);
if ( (k = find_edge(edge_id, g)) >= 0 ) {
strcpy(g->edges[k].weight, new_weight);
if ( win->window_displayed ) {
strcpy(old_weight, g->edges[k].weight);
if ( *old_weight != 0 ) {
if ( *new_weight != 0 ) {
spprint(write_to,
"Igd_ChangeOneEdgeWeight %u %i {%s}\n"
, win->id, edge_id, new_weight);
} else {
/* new weight : 0 */
spprint(write_to,
"Igd_DeleteEdgeWeight %u %i\n",
win->id, edge_id);
}
} else {
/* no weight before */
if ( *new_weight != 0 ) {
spprint(write_to,
"Igd_MakeEdgeWeight %u %i {%s}\n",
win->id, edge_id, new_weight);
}
}
}
}
}
break;
case MODIFY_CHANGE_DASH_OF_EDGES:
/* change dash pattern of individual edges. edges not in the
graph will not cause error messages */
g = &(win->g);
receive_int_array(&change_edgenum, 1);
for ( j = 0; j < change_edgenum; j++ ) {
receive_int_array(&edge_id, 1);
receive_str(new_dash);
if ( (k = find_edge(edge_id, g)) >= 0 ) {
strcpy(g->edges[k].dash, new_dash);
if ( win->window_displayed ){
spprint(write_to,
"Igd_ChangeOneEdgeDash %u %i {%s}\n",
win->id, edge_id, new_dash);
}
}
}
break;
case MODIFY_DELETE_EDGES:
/* edges not in the graph will not cause error messages */
g = &(win->g);
receive_int_array(&delete_edgenum, 1);
for ( j = 0; j < delete_edgenum; j++ ) {
receive_int_array(&edge_id, 1);
if ( (k = find_edge(edge_id, g)) >= 0 ) {
g->edges[k].deleted = 1;
g->deleted_edgenum++;
if ( win->window_displayed ) {
spprint(write_to, "Igd_DeleteEdge %u %i\n",
win->id, edge_id);
}
}
}
/* if too many edges have been deleted, compress the
graph */
if ( g->deleted_edgenum > 0.1 * g->edgenum )
compress_graph(g);
break;
case MODIFY_DELETE_ALL_EDGES:
/* will delete all edges from the graph */
g = &(win->g);
if ( win->window_displayed ) {
for ( j = 0; j < g->edgenum; j++ )
if ( ! g->edges[j].deleted ){
spprint(write_to, "Igd_DeleteEdge %u %i\n",
win->id, g->edges[j].edge_id);
}
}
FREE(g->edges);
g->edgenum = 0;
break;
case MODIFY_END_OF_MESSAGE:
break;
default:
printf("Unrecognized keyword %i\n", keyword);
break;
} /* end switch (keyword) */
} while ( keyword != MODIFY_END_OF_MESSAGE );
break;
case CTOI_CLEAR_MESSAGE:
if ( win->window_displayed ) {
spprint(write_to, "Igd_CApplClearCmsg %u\n", win->id);
}
break;
case CTOI_PRINT_MESSAGE:
if ( win->window_displayed ) {
str = malloc(bytes);
receive_str(str);
spprint(write_to, "Igd_CApplSetCmsg %u {%s}\n", win->id, str);
FREE(str);
}
break;
case CTOI_APPEND_MESSAGE:
if ( win->window_displayed ) {
str = malloc(bytes);
receive_str(str);
spprint(write_to, "Igd_CApplAppendCmsg %u {%s}\n", win->id,str);
FREE(str);
}
break;
default:
printf("Unknown message tag: %i\n", msgtag);
break;
} /* end switch (msgtag) */
freebuf(r_bufid);
} /* end for */
} /* end while */
return(0);
}
