add proxy index builds, perperual session, backup.prev, disarmed track indication...

[goodguy/history.git] / cinelerra-5.1 / cinelerra / undostack.C

diff --git a/cinelerra-5.1/cinelerra/undostack.C b/cinelerra-5.1/cinelerra/undostack.C
index 0c49981b22ff63f025deab29a4f2561de1633bad..4adef936fbae44f3b31d974eaf2da6e7a136b1e5 100644 (file)
--- a/cinelerra-5.1/cinelerra/undostack.C
+++ b/cinelerra-5.1/cinelerra/undostack.C
@@ -482,3 +482,58 @@ void* UndoStackItem::get_creator()
        return creator;
 }
 
+void UndoStackItem::save(FILE *fp)
+{
+       fwrite(&key,1,sizeof(key),fp);
+       fwrite(&load_flags,1,sizeof(load_flags),fp);
+       fwrite(&data_size,1,sizeof(data_size),fp);
+       fwrite(data,1,data_size,fp);
+       for( char *bp=session_filename; *bp; ++bp ) fputc(*bp, fp);
+       fputc(0, fp);
+       for( char *bp=description; *bp; ++bp ) fputc(*bp, fp);
+       fputc(0, fp);
+}
+
+void UndoStackItem::load(FILE *fp)
+{
+       fread(&key,1,sizeof(key),fp);
+       fread(&load_flags,1,sizeof(load_flags),fp);
+       fread(&data_size,1,sizeof(data_size),fp);
+       fread(data=new char[data_size],1,data_size,fp);
+       char filename[BCTEXTLEN], descr[BCTEXTLEN];
+       char *bp = filename, *ep = bp+sizeof(filename)-1;
+       for( int ch; bp<ep && (ch=fgetc(fp))>0; ++bp ) *bp = ch;
+       *bp = 0;
+       session_filename = cstrdup(filename);
+       bp = descr;  ep = bp+sizeof(descr)-1;
+       for( int ch; bp<ep && (ch=fgetc(fp))>0; ++bp ) *bp = ch;
+       *bp = 0;
+       description = cstrdup(descr);
+//printf("read undo key=%d,flags=%jx,data_size=%d,data=%p,file=%s,descr=%s\n",
+// key, load_flags, data_size, data, session_filename, description);
+}
+
+void UndoStack::save(FILE *fp)
+{
+       for( UndoStackItem *item=first; item; item=item->next ) {
+               int is_current = item == current ? 1 : 0;
+               fwrite(&is_current,1,sizeof(is_current),fp);
+               item->save(fp);
+//             if( item == current ) break; // stop at current
+       }
+}
+
+void UndoStack::load(FILE *fp)
+{
+       while( last ) delete last;
+       current = 0;
+       UndoStackItem *current_item = 0;
+       int is_current = 0;
+       while( fread(&is_current,1,sizeof(is_current),fp) == sizeof(is_current) ) {
+               UndoStackItem *item = push();
+               item->load(fp);
+               if( is_current ) current_item = item;
+       }
+       if( current_item ) current = current_item;
+}
+