util.c

/*
    Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd.
    All rights reserved.
    Copyright (C) Gabriel Dos Reis.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

        - Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.

        - Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in
          the documentation and/or other materials provided with the
          distribution.

        - Neither the name of The Numerical Algorithms Group Ltd. nor the
          names of its contributors may be used to endorse or promote products
          derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
    PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "openaxiom-c-macros.h"
#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "view.h"
#include "cfuns.h"

#include "util.H1"


/* FIXME: Remove this kludge */
using namespace OpenAxiom;


int
checker(int code, int lineNumber, const char* errorStr)
{
  if (code < 0) {
    fprintf(stderr, "Error occured during %s\n", errorStr);
    fprintf(stderr, "Error code of %d\n", errno);
    fprintf(stderr, "Error in line number %d of process %d\n", lineNumber, oa_getpid());
    perror("");
  }
  return (code);
}




const char*
getmemWithLine(int nbytes, const char* str, int lineNum)
{
  char *p;

  p = (char *) malloc(nbytes);
  if (!p) {
    fprintf(stderr, "getmem: Could not get %d bytes for %s at line %d\n", nbytes, str, lineNum);
    exit(99);
  }
  return p;
}


const char *
saymemWithLine(const char *str, int num, int size, int lineNum)
{
   return getmemWithLine(num * size, str, lineNum);
}


void
myfree(void *p, int size)
{
    free(p);
}




XPoint
getWindowPositionXY(Display *display, Window w)
{
  XPoint position;
  Window rootW, parentW, *childrenWs, tmpW;
  unsigned int nChildren;
  XWindowAttributes windowAttrib;
  int screen, tmp = 1;

  screen = DefaultScreen(display);
  tmpW = w;
  while (tmp) {
    XQueryTree(display, tmpW, &rootW, &parentW, &childrenWs, &nChildren);
    XFree((char *)childrenWs);
    if (parentW == RootWindow(display, screen))
      tmp = 0;
    else
      tmpW = parentW;
  }
  XGetWindowAttributes(display, tmpW, &windowAttrib);
  position.x = (short) windowAttrib.x;
  position.y = (short) windowAttrib.y;

  return (position);
}



XPoint
getWindowSizeXY(Display *display,Window w)
{
  XPoint size;
  Window rootW, parentW, *childrenWs, tmpW;
  unsigned int nChildren;
  XWindowAttributes windowAttrib;
  int screen, tmp = 1;

  screen = DefaultScreen(display);
  tmpW = w;
  while (tmp) {
    XQueryTree(display, tmpW, &rootW, &parentW, &childrenWs, &nChildren);
    XFree((char *)childrenWs);
    if (parentW == RootWindow(display, screen))
      tmp = 0;
    else
      tmpW = parentW;
  }
  XGetWindowAttributes(display, tmpW, &windowAttrib);
  size.x = (short) windowAttrib.width;
  size.y = (short) windowAttrib.height;

  return (size);
}