rem: drawDocumentPartsOnPixmap(Text *tPtr, Bool all)
add: static void drawDocumentPartsOnPixmap(Text * tPtr, Bool all)
context: drawDocumentPartsOnPixmap(Text *tPtr, Bool all){    Paragraph *para;    para = tPtr->paragraphs;    while(para) {        /* the 32 reduces jitter on the human eye by preparing paragraphs         in anticipation of when the _moving_ scrollbar reaches them */        if(para->bottom + 32 < tPtr->vpos ||           para->top >  tPtr->visibleH + tPtr->vpos + 32 ) {            if(para->drawbuffer) {                XFreePixmap(tPtr->view->screen->display, para->drawbuffer);                para->drawbuffer = (Pixmap) NULL;            }        } else {            if(!para->drawbuffer || all)                putParagraphOnPixmap(tPtr, para, True);        }        para = para->next;    }}