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preview function now does no more need to save whole schematic on the undo stack, it is just a matter of pointer switching

This commit is contained in:
Stefan Schippers 2020-10-15 18:08:14 +02:00
parent e7928727d6
commit 1c294ce31d
1 changed files with 13 additions and 25 deletions
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38
src/xinit.c
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@ -790,38 +790,29 @@ int source_tcl_file(char *s)
void preview_window(const char *what, const char *tk_win_path, const char *filename)
{
char *saveptr = NULL;
char save_name[PATH_MAX];
if(!strcmp(what, "create")) {
tkpre_window = Tk_NameToWindow(interp, tk_win_path, mainwindow);
Tk_MakeWindowExist(tkpre_window);
pre_window = Tk_WindowId(tkpre_window);
}
else if(!strcmp(what, "draw")) {
double xor, yor, z;
Xschem_ctx *save_xctx = NULL; /* save pointer to current schematic context structure */
char *saveptr = NULL;
int save_mod, save_ev, save_show_pin;
/* save context */
xor = xctx->xorigin;
yor = xctx->yorigin;
z = xctx->zoom;
save_xctx = xctx; /* save current schematic */
xctx = NULL; /* reset for preview */
alloc_xschem_data(); /* alloc data into xctx */
/* save some relevant global context */
save_window = window;
save_mod = modified;
save_ev = event_reporting;
event_reporting = 0;
save_show_pin = show_pin_net_names;
show_pin_net_names = 0;
my_strncpy(save_name, xctx->current_name, S(save_name));
my_strdup(117, &saveptr, tclgetvar("current_dirname"));
push_undo();
my_strdup(114, &xctx->sch_path[xctx->currsch+1], xctx->sch_path[xctx->currsch]);
my_strcat(115, &xctx->sch_path[xctx->currsch+1], "___preview___");
my_strcat(116, &xctx->sch_path[xctx->currsch+1], ".");
xctx->sch_inst_number[xctx->currsch+1] = 1;
xctx->currsch++;
unselect_all();
remove_symbols();
/* preview */
check_version = 0; /* if set refuse to load and preview anything if not a rel 1.1+ xschem file */
@ -837,21 +828,18 @@ void preview_window(const char *what, const char *tk_win_path, const char *filen
my_free(1144, &saveptr);
unselect_all();
remove_symbols();
my_strncpy(xctx->sch[xctx->currsch] , "", S(xctx->sch[xctx->currsch]));
xctx->currsch--;
clear_drawing();
free_xschem_data();
show_pin_net_names = save_show_pin;
pop_undo(0);
modified = save_mod;
set_modify(modified);
xctx = save_xctx; /* restore schematic */
window = save_window;
xctx->xorigin = xor;
xctx->yorigin = yor;
xctx->zoom = z;
xctx->mooz = 1/z;
resetwin();
change_linewidth(-1.);
my_strncpy(xctx->current_name, save_name, S(save_name));
draw();
event_reporting = save_ev;
}