File: sticks.c

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/* Copyright (C) 2002 Damir Zucic */

/*=============================================================================

				sticks.c

Purpose:
	Execute sticks command: change the radius of sticks. This radius is
	used used to draw bonds as sticks.

Input:
	(1) Pointer to ConfigS structure.
	(2) Pointer to the remainder of the command string.

Output:
	(1) The radius of sticks changed.
	(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"

/*======function prototypes:=================================================*/

size_t		MainRefresh_ (MolComplexS *, int,
			      RuntimeS *, ConfigS *, GUIS *,
			      NearestAtomS *, size_t, unsigned int);
int		ControlRefresh_ (MolComplexS *, ConfigS *, GUIS *);

/*======execute sticks command:==============================================*/

int Sticks_ (MolComplexS *mol_complexSP, int mol_complexesN,
	     RuntimeS *runtimeSP,
	     ConfigS *configSP, GUIS *guiSP,
	     NearestAtomS *nearest_atomSP, size_t pixelsN,
	     unsigned int *refreshIP, char *stringP)
{
char		*P;
int		n;
double		value;
int		mol_complexI;
MolComplexS	*curr_mol_complexSP;

/* Replace each non-numeric character (except */
/* minus sign and  decimal point) with space: */
P = stringP;
while ((n = *P++) != '\0')
	{
	if (!isdigit (n) && (n != '-') && (n != '.')) *(P - 1) = ' ';
	}

/* Try to extract the radius of sticks: */
if (sscanf (stringP, "%lf", &value) != 1)
	{
	strcpy (runtimeSP->messageA,
		"Failed to extract the stick radius!");
	runtimeSP->message_length = strlen (runtimeSP->messageA);
	return ERROR_STICKS;
	}

/* Check the radius of sticks (must be positive): */
if (value < 0.0)
	{
	strcpy (runtimeSP->messageA, "Positive value expected!");
	runtimeSP->message_length = strlen (runtimeSP->messageA);
	return ERROR_STICKS;
	}

/* On success, set the radius of sticks for each caught complex: */
for (mol_complexI = 0; mol_complexI < mol_complexesN; mol_complexI++)
	{
	curr_mol_complexSP = mol_complexSP + mol_complexI;
	if (curr_mol_complexSP->catchF == 0) continue;
	curr_mol_complexSP->stick_radius = value;
	}

/* Refresh the main window: */
(*refreshIP)++;
MainRefresh_ (mol_complexSP, mol_complexesN, runtimeSP, configSP, guiSP,
	      nearest_atomSP, pixelsN, *refreshIP);

/* Refresh the control window: */
ControlRefresh_ (mol_complexSP + runtimeSP->default_complexI, configSP, guiSP);

/* Return the command code: */
return COMMAND_STICKS;
}

/*===========================================================================*/