struct sys *
sys_copy(struct sys *sys)
{
struct sys *copy;
int i;
copy = malloc(sizeof(struct sys));
memcpy(copy, sys, sizeof(struct sys));
copy->graph = graph_copy(sys->graph);
copy->sel = sel_copy(sys->sel);
copy->visible = sel_copy(sys->visible);
copy->frames = malloc(copy->nframesalloc * sizeof(struct frame));
for (i = 0; i < sys_get_frame_count(sys); i++)
copy->frames[i].atoms = atoms_copy(sys->frames[i].atoms);
return (copy);
}
/*
* sels_copy (sels)
*
* returns a copy of sels
*/
GList *
sels_copy (GList * sels)
{
GList * gl, * nsels = NULL;
sw_sel * sel, * nsel;
for (gl = sels; gl; gl = gl->next) {
sel = (sw_sel *)gl->data;
nsel = sel_copy (sel);
nsels = g_list_insert_sorted(nsels, nsel, (GCompareFunc)sel_cmp);
}
return nsels;
}
/*
* sounddata_copyin_selection (sounddata1, sounddata2)
*
* copies the selection of sounddata1 into sounddata2. If sounddata2 previously
* had a selection, the two are merged.
*/
void
sounddata_copyin_selection (sw_sounddata * sounddata1, sw_sounddata * sounddata2)
{
GList * gl;
sw_sel * sel, *sel2;
for (gl = sounddata1->sels; gl; gl = gl->next) {
sel = (sw_sel *)gl->data;
sel2 = sel_copy (sel);
sounddata_add_selection (sounddata2, sel2);
}
sounddata_normalise_selection (sounddata2);
}
void
sounddata_normalise_selection (sw_sounddata * sounddata)
{
GList * gl;
GList * nsels = NULL;
sw_sel * osel = NULL, * sel;
sw_framecount_t nr_frames;
if (!sounddata_sel_needs_normalising(sounddata)) return;
nr_frames = sounddata->nr_frames;
/* Seed osel with 'fake' iteration of following loop */
gl = sounddata->sels;
sel = (sw_sel *)gl->data;
sel->sel_start = CLAMP(sel->sel_start, 0, nr_frames);
sel->sel_end = CLAMP(sel->sel_end, 0, nr_frames);
osel = sel_copy(sel);
gl = gl->next;
for (; gl; gl = gl->next) {
sel = (sw_sel *)gl->data;
sel->sel_start = CLAMP(sel->sel_start, 0, nr_frames);
sel->sel_end = CLAMP(sel->sel_end, 0, nr_frames);
/* Check for an overlap */
if(osel->sel_end >= sel->sel_start) {
/* If sel is completely contained in osel, ignore it. */
if(osel->sel_end > sel->sel_end) {
continue;
}
/* Set: osel = osel INTERSECT sel
* we already know osel->sel_start <= sel->sel_start */
osel->sel_end = sel->sel_end;
} else {
/* No more overlaps with osel; insert it in nsels, and
* reset osel. */
if (osel->sel_start == osel->sel_end) {
g_free (osel);
} else {
nsels = g_list_insert_sorted(nsels, osel, (GCompareFunc)sel_cmp);
}
osel = sel_copy(sel);
}
}
/* Insert the last created osel */
if (osel->sel_start == osel->sel_end) {
g_free (osel);
} else {
nsels = g_list_insert_sorted(nsels, osel, (GCompareFunc)sel_cmp);
}
/* Clear the old selection */
sounddata_clear_selection (sounddata);
/* Set the newly created (normalised) selection */
sounddata->sels = nsels;
}
