[GRASS5] [bug #2786] (grass) d.zoomed in and out too much, now can't get back exactly

[Florian Goessmann]

alright, that was easy. i guess i'm supposed to send the files to this 
list.
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#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "gis.h"
#include "display.h"
#include "raster.h"
#include "local_proto.h"
#include "glocale.h"

int quit (struct Cell_head *defwin, struct Cell_head *currwin) {
  
  int screen_x, screen_y, button;
  int hand = 0;
  double ux1, uy1, ux2, uy2, ew, ns;
  
  fprintf(stderr, "\n\nButtons:\n") ;
  fprintf(stderr, "%s reset to default region\n", lefts) ;
  fprintf(stderr, "%s reset to region before d.zoom started\n", middles) ;
  fprintf(stderr, "%s Quit\n", rights) ;	
  
  R_get_location_with_pointer(&screen_x, &screen_y, &button);		
  
  if (button == leftb) {
    ew = defwin->east - defwin->west;
    ns = defwin->north - defwin->south;

    if ( ns <= defwin->ns_res ) {
      ns = 2 * defwin->ns_res;
    }

    if ( ew <= defwin->ew_res ) {
      ew = 2 * defwin->ew_res;
    }

    ux1 = defwin->east;
    ux2 = defwin->west;
    uy1 = defwin->north;
    uy2 = defwin->south;

    set_win (defwin, ux1, uy1, ux2, uy2, hand);
    return 0;
  }
 
  if (button == middleb) {
    ew = currwin->east - currwin->west;
    ns = currwin->north - currwin->south;

    if ( ns <= currwin->ns_res ) {
      ns = 2 * currwin->ns_res;
    }

    if ( ew <= currwin->ew_res ) {
      ew = 2 * currwin->ew_res;
    }

    ux1 = currwin->east;
    ux2 = currwin->west;
    uy1 = currwin->north;
    uy2 = currwin->south;

    set_win (currwin, ux1, uy1, ux2, uy2, hand);
    return 0;
  }
  
  if (button == rightb) {
    return 0;
  }

}
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so here they are. the two diff files, for d.m and d.zoom as well as the 
two new files needed. the new button for the gis manager and the quit 
function for d.zoom.

regards
florian


On 09 Dec 2004, at 14:02, Markus Neteler wrote:

> Florian,
>
> making diffs is quite simple and does not require cvs write access.
> The few steps are (nothing to program):
>
> - have a fresh 5.7 source code tree (needed anyway);
>   run
>     cvs up -dP
>   to refresh again (works fine even over 56k modem)
> - create the diffs:
>   cd display/d.zoom/
>   cvs diff -u > dzoom.diffs
>
> - send/post the file (as attachment).
>
> That's it!
>
> Thanks
>
>  Markus