1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
|
/* Copyright (C) 2000 Damir Zucic */
/*=============================================================================
window.c
Purpose:
Execute window command: set the sliding window width. The hard-coded
default is 11. The minimal value is 1.
Input:
(1) Pointer to RuntimeS structure.
Output:
(1) The sliding window width set.
(2) Return value.
Return value:
(1) Positive (command) code on success.
(2) Negative (error) code on failure.
========includes:============================================================*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/Xatom.h>
#include "defines.h"
#include "commands.h"
#include "typedefs.h"
/*======execute window command:==============================================*/
int Window_ (RuntimeS *runtimeSP)
{
char string_copyA[STRINGSIZE];
char *P;
int n;
int value;
/* Copy the original command string: */
strncpy (string_copyA, runtimeSP->curr_commandA, STRINGSIZE - 1);
string_copyA[STRINGSIZE - 1] = '\0';
/* Replace each non-numeric character (except */
/* minus sign and decimal point) with space: */
P = string_copyA;
while ((n = *P++) != '\0')
{
if (!isdigit (n) && (n != '-') && (n != '.')) *(P - 1) = ' ';
}
/* Try to extract the sliding window width: */
if (sscanf (string_copyA, "%d", &value) != 1)
{
strcpy (runtimeSP->messageA,
"Failed to extract the sliding window width!");
runtimeSP->message_length = strlen (runtimeSP->messageA);
return ERROR_WINDOW;
}
/* Check the value: */
if (value < 1)
{
strcpy (runtimeSP->messageA, "Positive value expected!");
runtimeSP->message_length = strlen (runtimeSP->messageA);
return ERROR_WINDOW;
}
/* On success, copy the extracted value to RuntimeS structure: */
runtimeSP->sliding_window_width = value;
/* Return the command code: */
return COMMAND_WINDOW;
}
/*===========================================================================*/
|