diff -C 3 -P '--exclude-from=/home/ed/src/exclude-iu-file' -r ./ENHANCEMENTS ../grace-5.1.22iu/ENHANCEMENTS
*** ./ENHANCEMENTS	1969-12-31 17:00:00.000000000 -0700
--- ../grace-5.1.22iu/ENHANCEMENTS	2011-10-12 21:55:55.000000000 -0600
***************
*** 0 ****
--- 1,4 ----
+ Instantaneous updating
+ PDFs can be cropped to the minimum bounding box: use the "Tight BB" device
+ option
+ 
Binary files ./src/buildinfo and ../grace-5.1.22iu/src/buildinfo differ
diff -C 3 -P '--exclude-from=/home/ed/src/exclude-iu-file' -r ./src/pdfdrv.c ../grace-5.1.22iu/src/pdfdrv.c
*** ./src/pdfdrv.c	2004-08-04 13:37:47.000000000 -0600
--- ../grace-5.1.22iu/src/pdfdrv.c	2011-10-12 16:02:54.000000000 -0600
***************
*** 75,80 ****
--- 75,81 ----
  
  static int pdf_setup_pdf1_3 = TRUE;
  static int pdf_setup_pdfpattern = FALSE;
+ static int pdf_setup_tightbb = FALSE;
  static int pdf_setup_compression = 4;
  
  extern FILE *prstream;
***************
*** 189,195 ****
      
      pdfinitpatterns();
  
!     PDF_begin_page(phandle, pg.width*72.0/pg.dpi, pg.height*72.0/pg.dpi);
  
      if ((s = get_project_description())) {
          PDF_set_border_style(phandle, "dashed", 3.0);
--- 190,208 ----
      
      pdfinitpatterns();
  
!     float xorg;
!     float yorg;
! 
!     if( pdf_setup_tightbb ) {
!       view v = get_bbox(BBOX_TYPE_GLOB);
!       float bbwidth  = (v.xv2-v.xv1)*page_scalef;
!       float bbheight = (v.yv2-v.yv1)*page_scalef;
!       xorg     = (v.xv1)*page_scalef;
!       yorg     = (v.yv1)*page_scalef;
!       PDF_begin_page(phandle, bbwidth, bbheight );
!     } else {
!       PDF_begin_page(phandle, pg.width*72.0/pg.dpi, pg.height*72.0/pg.dpi);
!     }
  
      if ((s = get_project_description())) {
          PDF_set_border_style(phandle, "dashed", 3.0);
***************
*** 200,205 ****
--- 213,220 ----
              20.0, 50.0, 320.0, 100.0, s, "Project description", "note", 0);
      }
      
+     if( pdf_setup_tightbb )
+       PDF_translate( phandle, -xorg, -yorg );
      PDF_scale(phandle, page_scalef, page_scalef);
  
      return RETURN_SUCCESS;
***************
*** 686,691 ****
--- 701,707 ----
  static Widget pdf_setup_frame;
  static Widget pdf_setup_pdf1_3_item;
  static Widget pdf_setup_pdfpattern_item;
+ static Widget pdf_setup_tightbb_item;
  static SpinStructure *pdf_setup_compression_item;
  
  void pdf_gui_setup(void)
***************
*** 701,706 ****
--- 717,723 ----
          rc = CreateVContainer(fr);
  	pdf_setup_pdf1_3_item = CreateToggleButton(rc, "PDF-1.3");
  	pdf_setup_pdfpattern_item = CreateToggleButton(rc, "Use patterns");
+ 	pdf_setup_tightbb_item = CreateToggleButton(rc, "Tight BBox");
  	pdf_setup_compression_item = CreateSpinChoice(rc,
              "Compression:", 1, SPIN_TYPE_INT, 0.0, 9.0, 1.0);
  
***************
*** 716,721 ****
--- 733,739 ----
      if (pdf_setup_frame) {
          SetToggleButtonState(pdf_setup_pdf1_3_item, pdf_setup_pdf1_3);
          SetToggleButtonState(pdf_setup_pdfpattern_item, pdf_setup_pdfpattern);
+         SetToggleButtonState(pdf_setup_tightbb_item, pdf_setup_tightbb);
          SetSpinChoice(pdf_setup_compression_item, (double) pdf_setup_compression);
      }
  }
***************
*** 724,729 ****
--- 742,748 ----
  {
      pdf_setup_pdf1_3 = GetToggleButtonState(pdf_setup_pdf1_3_item);
      pdf_setup_pdfpattern = GetToggleButtonState(pdf_setup_pdfpattern_item);
+     pdf_setup_tightbb = GetToggleButtonState(pdf_setup_tightbb_item);
      pdf_setup_compression = (int) GetSpinChoice(pdf_setup_compression_item);
      
      return RETURN_SUCCESS;