@@ -66,6 +66,7 @@ typedef struct print_t {

         redata_t *data;

         int originline;

         int origincol;

+        int showonlyn;

         int dirty;

 } printout_t;

@@ -259,8 +260,15 @@ fprintf(stderr,"REDRAW Header (command)\n");

                                 }

                         }

                 }

-                if(re->contentsdirty)

+                if(re->contentsdirty) {

+                        /* set associated printouts as dirty too */

+                        for(i=0;i<re->sizeprints;i++) {

+                                if(re->prints[i].ui!=NULL && re->prints[i].data==NULL)

+                                        re->prints[i].dirty=1;

+                        }

+                        /* redraw contents */

                         re_drawcontents(re,NULL);

+                }

                 if(re->ui->rendererdirty) {

 #if 0

 fprintf(stderr,"RENDER\n");

@@ -661,12 +669,34 @@ re_textinsert(re_t *re, char *text, int sizetext)

         }

         if(redata_op_add(re->data,cursorpos,text,sizetext,NULL)!=0)

                 return(-1); /* couldn't add requested text */

+        /* fix selection */

         if(fixsel) {

                 if(cursorpos<=selstart)

                         redata_pos2linecol(re->data,selstart+sizetext,&(re->sellinefrom),&(re->selcolfrom));

                 if(cursorpos<=selend)

                         redata_pos2linecol(re->data,selend+sizetext,&(re->sellineto),&(re->selcolto));

         }

+        /* fix printouts scope */

+        if(re->usedprints>0) {

+                int i;

+                int numnl;

+                printout_t *printout;

+                for(numnl=0,ptr=strchr(text,'\n');ptr!=NULL;ptr=strchr(ptr+1,'\n'))

+                        numnl++;

+                for(i=0;i<re->usedprints;i++) {

+                        printout=re->prints+i;

+                        if(printout->data!=NULL)

+                                continue; /* has its own copy of the data */

+                        if(printout->originline>re->curline) {

+                                printout->originline+=numnl;

+                        } else if(printout->showonlyn>0

+                            && re->curline>=printout->originline

+                            && re->curline<(printout->originline+printout->showonlyn)) {

+                                printout->showonlyn+=numnl;

+                        }

+                }

+        }

+        /* fix cursor pos */

         for(ptr=text,next=memchr(text,'\n',sizetext);ptr!=NULL;ptr=(next!=NULL)?next+1:NULL,next=(ptr!=NULL)?memchr(ptr,'\n',sizetext-(ptr-text)):NULL) {

                 len=(next!=NULL)?(next-ptr):sizetext-(ptr-text);

                 re->curcol+=redata_generic_utf8len(ptr,len);

@@ -907,6 +937,23 @@ fprintf(stderr,"SDL_KEYDOWN: BACKSPACE%s\n",(event==&fakeevent)?" (fake)":"");

                         dellen=cursorpos-delpos;

                         redata_op_del(re->data,delpos,dellen,NULL);

                         cursorpos=delpos;

+                        /* fix printouts scope */

+                        if(re->usedprints>0) {

+                                int i;

+                                printout_t *printout;

+                                for(i=0;i<re->usedprints;i++) {

+                                        printout=re->prints+i;

+                                        if(printout->data!=NULL)

+                                                continue; /* has its own copy of the data */

+                                        if(printout->originline>re->curline) {

+                                                printout->originline--;

+                                        } else if(printout->showonlyn>1

+                                            && re->curline>=printout->originline

+                                            && re->curline<(printout->originline+printout->showonlyn)) {

+                                                printout->showonlyn--;

+                                        }

+                                }

+                        }

                 }

                 redata_pos2linecol(re->data,cursorpos,&(re->curline),&(re->curcol));

                 if(fixsel) {

@@ -1766,6 +1813,8 @@ re_addprint(re_t *re)

         /* setup window */

         if((re->prints[i].ui=reui_init(DEFAULTFONTHEIGHT*re->fontheightpercent/100,re->ui))==NULL)

                 return(-1); /* couldn't init window */

+#if 0

+/* option A: printouts are immutable */

         if((re->prints[i].data=redata_init(redata_highlighter_register,NULL))==NULL) {

                 reui_free(re->prints[i].ui),re->prints[i].ui=NULL;

                 return(-1); /* couldn't init data store */

@@ -1780,6 +1829,14 @@ re_addprint(re_t *re)

                 re_sel_toggle(re);

                 re->contentsdirty=1;

         }

+#else

+/* option B: printouts are a window into a fixed place of the file */

+        re->prints[i].data=NULL;

+        re->prints[i].originline=re->sellinefrom;

+        re->prints[i].origincol=0;

+        re->prints[i].showonlyn=re->sellineto-re->sellinefrom+1;

+        re->usedprints++;

+#endif

         re->prints[i].dirty=1;

         return(0);

 }

@@ -2002,7 +2059,8 @@ re_drawcontents(re_t *re, printout_t *printout)

         int matchingpos;

         char matchingchar;

         int mline,mcol;

-        if(re==NULL || (printout!=NULL && (printout->ui==NULL || printout->data==NULL)))

+        int showonlyn;

+        if(re==NULL || (printout!=NULL && printout->ui==NULL))

                 return(-1);

         /* init vars and clear screen */

         ui=re->ui;

@@ -2017,6 +2075,7 @@ re_drawcontents(re_t *re, printout_t *printout)

         curcol=re->curcol;

         maxcol=re->maxcol;

         maxrow=re->maxrow;

+        showonlyn=0;

         if(printout==NULL && re->viewonly==1) {

                 memset(&fakeprintout,0,sizeof(printout_t));

                 fakeprintout.ui=re->ui;

@@ -2026,7 +2085,7 @@ re_drawcontents(re_t *re, printout_t *printout)

                 printout=&fakeprintout;

         } else if(printout!=NULL) {

                 ui=printout->ui;

-                data=printout->data;

+                data=(printout->data==NULL)?re->data:printout->data;

                 x0=0;

                 y0=0;

                 w=ui->w;

@@ -2035,6 +2094,7 @@ re_drawcontents(re_t *re, printout_t *printout)

                 origincol=curcol=printout->origincol;

                 maxcol=w/ui->fontwidth-1;

                 maxrow=h/ui->fontheight-1;

+                showonlyn=printout->showonlyn;

         }

         if(redata_linecol2pos(data,curline,curcol,&cursorpos,NULL)!=0)

                 return(0); /* error obtaining position */

@@ -2053,7 +2113,7 @@ re_drawcontents(re_t *re, printout_t *printout)

         if(printout==NULL) {

                 reui_fill(ui,x0,y0+(curline-originline)*ui->fontheight,w,ui->fontheight+1,"\xef\xef\xef\xff");

         } else {

-                for(y=y0+(printout->originline%2)*ui->fontheight;y<(y0+h);y+=ui->fontheight*2)

+                for(y=y0+((printout->data==NULL)?1:(printout->originline%2))*ui->fontheight;y<(y0+h);y+=ui->fontheight*2)

                         reui_fill(ui,x0,y,w,ui->fontheight+1,"\xef\xef\xef\xff");

         }

         /* highlight the selection */

@@ -2096,6 +2156,8 @@ re_drawcontents(re_t *re, printout_t *printout)

                 /* definition of vars for tracking linecolor usage */

                 int curlinecolor; /* current linecolor */

                 int usedlenlinecolor; /* number of bytes of current linecolor already drawn */

+                if(showonlyn>0 && ui->fontheight>0 && (showonlyn)<((y-y0)/ui->fontheight))

+                        break; /* this printout is configured to only show up to here */

                 /* get start/end of line */

                 if(redata_line_realstart(data,pos,&realstart)==-1 || redata_line_realend(data,pos,&realend)==-1)

                         break; /* couldn't get real start/end */