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path: root/app/bin/dprmfile.c
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/** \file dprmfile.c
 * Param File Management
 */

/*  XTrkCad - Model Railroad CAD
 *  Copyright (C) 2005 Dave Bullis
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <time.h>

#include "custom.h"
#include "fileio.h"
#include "i18n.h"
#include "messages.h"
#include "param.h"
#include "paths.h"
#include "track.h"

typedef struct {
		char * name;
		char * contents;
		int deleted;
		int deletedShadow;
		int valid;
		} paramFileInfo_t;
typedef paramFileInfo_t * paramFileInfo_p;
static dynArr_t paramFileInfo_da;
#define paramFileInfo(N) DYNARR_N( paramFileInfo_t, paramFileInfo_da, N )

EXPORT int curParamFileIndex = PARAM_DEMO;
static char curParamDir[STR_LONG_SIZE];
static struct wFilSel_t * paramFile_fs;


EXPORT wBool_t IsParamValid(
		int fileInx )
{
	if (fileInx == PARAM_DEMO)
		return (curDemo>=0);
	else if (fileInx == PARAM_CUSTOM)
		return TRUE;
	else if (fileInx == PARAM_LAYOUT)
		return TRUE;
	else if (fileInx >= 0 && fileInx < paramFileInfo_da.cnt)
		return (!paramFileInfo(fileInx).deleted) && paramFileInfo(fileInx).valid;
	else
		return FALSE;
}


EXPORT char * GetParamFileName(
		int fileInx )
{
	return paramFileInfo(fileInx).contents;
}


static BOOL_T UpdateParamFiles( void )
{
	char fileName[STR_LONG_SIZE], *fileNameP;
	char * contents;
	const char * cp;
	FILE * updateF;
	FILE * paramF;
	long updateTime;
	long lastTime;

	MakeFullpath(&fileNameP, libDir, "xtrkcad.upd", NULL);
	updateF = fopen( fileNameP, "r" );
	free(fileNameP);
	if ( updateF == NULL )
		return FALSE;
	if ( fgets( message, sizeof message, updateF ) == NULL ) {
		NoticeMessage( "short file: xtrkcad.upd", _("Ok"), NULL ); 
		return FALSE;
	}
	wPrefGetInteger( "file", "updatetime", &lastTime, 0 );
	updateTime = atol( message );
	if ( lastTime >= updateTime )
		return FALSE;

	while ( ( fgets( fileName, STR_LONG_SIZE, updateF ) ) != NULL ) {
		Stripcr( fileName );
		InfoMessage( _("Updating %s"), fileName );
		MakeFullpath(&fileNameP, libDir, "params", fileName, NULL);
		paramF = fopen( fileNameP, "r" );
		if ( paramF == NULL ) {
			NoticeMessage( MSG_PRMFIL_OPEN_NEW, _("Ok"), NULL, fileNameP );
			free(fileNameP);
			continue;
		}
		contents = NULL;
		while ( ( fgets(message, sizeof message, paramF) ) != NULL ) {
			if (strncmp( message, "CONTENTS", 8 ) == 0) {
				Stripcr( message );
				contents = message+9;
				break;
			}
		}
		fclose( paramF );
		if (contents == NULL) {
			NoticeMessage( MSG_PRMFIL_NO_CONTENTS, _("Ok"), NULL, fileNameP );
			free(fileNameP);
			continue;
		}
		cp = wPrefGetString( "Parameter File Map", contents );
		wPrefSetString( "Parameter File Map", contents, fileNameP );
		if (cp!=NULL && *cp!='\0') {
			/* been there, done that */
			free(fileNameP);
			continue;
		}

		DYNARR_APPEND( paramFileInfo_t, paramFileInfo_da, 10 );
		curParamFileIndex = paramFileInfo_da.cnt-1;
		paramFileInfo(curParamFileIndex).name = MyStrdup( fileNameP );
		curContents = curSubContents = NULL;
		paramFileInfo(curParamFileIndex).deleted = FALSE;
		paramFileInfo(curParamFileIndex).valid = TRUE;
		paramFileInfo(curParamFileIndex).deletedShadow = 
		paramFileInfo(curParamFileIndex).deleted = !ReadParams( 0, NULL, fileNameP );
		paramFileInfo(curParamFileIndex).contents = curContents;

		free(fileNameP);
	}
	wPrefSetInteger( "file", "updatetime", updateTime );
	return TRUE;
}


EXPORT void ReadParamFiles( void )
{
	int fileNo;
	const char *fileName;
	const char * contents;
	BOOL_T updated = FALSE;

	updated = UpdateParamFiles();

	for ( fileNo=1; ; fileNo++ ) {
		sprintf( message, "File%d", fileNo );
		contents = wPrefGetString( "Parameter File Names", message );
		if (contents==NULL || *contents=='\0')
			break;
		InfoMessage( "Parameters for %s", contents );
		fileName = wPrefGetString( "Parameter File Map", contents );
		if (fileName==NULL || *fileName=='\0') {
			NoticeMessage( MSG_PRMFIL_NO_MAP, _("Ok"), NULL, contents );
			continue;
		}
		DYNARR_APPEND( paramFileInfo_t, paramFileInfo_da, 10 );
		curParamFileIndex = paramFileInfo_da.cnt-1;
		paramFileInfo(curParamFileIndex).name = MyStrdup( fileName );
		curContents = NULL;
		paramFileInfo(curParamFileIndex).deleted = FALSE;
		paramFileInfo(curParamFileIndex).valid = TRUE;
		paramFileInfo(curParamFileIndex).deletedShadow = 
		paramFileInfo(curParamFileIndex).deleted = !ReadParams( 0, NULL, fileName );
		if (curContents == NULL)
			curContents = curSubContents = MyStrdup(contents);
		paramFileInfo(curParamFileIndex).contents = curContents;
	}
	curParamFileIndex = PARAM_CUSTOM;
	if (updated) {
		RememberParamFiles();
	}
}


EXPORT void RememberParamFiles( void )
{
	int fileInx;
	int fileNo;
	char * contents, *cp;

	for (fileInx=0, fileNo=1; fileInx<paramFileInfo_da.cnt; fileInx++ ) {
		if (paramFileInfo(fileInx).valid && !paramFileInfo(fileInx).deleted) {
			sprintf( message, "File%d", fileNo++ );
			contents = paramFileInfo(fileInx).contents;
			for ( cp=contents; *cp; cp++ ) {
				if ( *cp == '=' || *cp == '\'' || *cp == '"'  || *cp == ':' || *cp == '.' )
					*cp = ' ';
			}
			wPrefSetString( "Parameter File Names", message, contents );
			wPrefSetString("Parameter File Map", contents, paramFileInfo(fileInx).name);
		}
	}
	sprintf( message, "File%d", fileNo++ );
	wPrefSetString( "Parameter File Names", message, "" );
}



/****************************************************************************
 *
 * Param File Dialog
 *
 */

static wWin_p paramFileW;

static long paramFileSel = 0;
static wIcon_p mtbox_bm;
static wIcon_p chkbox_bm;

static void ParamFileAction( void * );
static void ParamFileBrowse( void * );
static void ParamFileSelectAll( void * );

static paramListData_t paramFileListData = { 10, 370 };
static char * paramFileLabels[] = { N_("Show File Names"), NULL };
static paramData_t paramFilePLs[] = {
#define I_PRMFILLIST	(0)
#define paramFileL				((wList_p)paramFilePLs[I_PRMFILLIST].control)
	{	PD_LIST, NULL, "inx", 0, &paramFileListData, NULL, BL_DUP|BL_SETSTAY|BL_MANY },
#define I_PRMFILTOGGLE	(1)
	{	PD_TOGGLE, &paramFileSel, "mode", 0, paramFileLabels, NULL, BC_HORZ|BC_NOBORDER },
	{	PD_BUTTON, (void *)ParamFileSelectAll, "selectall", PDO_DLGCMDBUTTON, NULL, N_("Select all") },
#define I_PRMFILACTION	(3)
#define paramFileActionB		((wButton_p)paramFilePLs[I_PRMFILACTION].control)
	{	PD_BUTTON, (void*)ParamFileAction, "action", PDO_DLGCMDBUTTON, NULL, N_("Unload"), 0L, FALSE },
	{	PD_BUTTON, (void*)ParamFileBrowse, "browse", 0, NULL, N_("Browse ...") } };

static paramGroup_t paramFilePG = { "prmfile", 0, paramFilePLs, sizeof paramFilePLs/sizeof paramFilePLs[0] };


static void ParamFileLoadList( void )
{
	int fileInx;
	wIndex_t listInx;
	wControlShow( (wControl_p)paramFileL, FALSE );
	listInx = wListGetIndex(paramFileL);
	wListClear( paramFileL );
	for ( fileInx = 0; fileInx < paramFileInfo_da.cnt; fileInx++ ) {
		if (paramFileInfo(fileInx).valid) {
			strcpy( message, ((!paramFileSel) && paramFileInfo(fileInx).contents)?
						paramFileInfo(fileInx).contents:
						paramFileInfo(fileInx).name );
			wListAddValue( paramFileL, message, (paramFileInfo(fileInx).deleted)?mtbox_bm:chkbox_bm, (void*)(intptr_t)fileInx );
		}
	}
	wListSetIndex( paramFileL, listInx );
	wControlShow( (wControl_p)paramFileL, TRUE );
}

/**
 * Load the selected parameter files. This is a callback executed when the file selection dialog
 * is closed. 
 * Steps:
 * - the parameters are read from file
 * - check is performed to see whether the content is already present, if yes the previously
 * loaded content is invalidated
 * - loaded parameter file is added to list of parameter files
 * - if a parameter file dialog exists the list is updated. It is either rewritten in
 * in case of an invalidated file or the new file is appended
 * - the settings are updated
 * These steps are repeated for every file in list
 *
 * \param files IN the number of filenames in the fileName array
 * \param fileName IN an array of fully qualified filenames
 * \param data IN ignored
 * \return  TRUE on success, FALSE on error
 */

EXPORT int LoadParamFile(
		int files,
		char ** fileName,
		void * data )
{
	wIndex_t inx;
	int i = 0;

	wBool_t redrawList = FALSE;

	assert( fileName != NULL );
	assert( files > 0);

	for( i=0; i < files; i++ ) 
	{
		curContents = curSubContents = NULL;
		curParamFileIndex = paramFileInfo_da.cnt;
		if ( !ReadParams( 0, NULL, fileName[ i ] ) )
			return FALSE;

		assert( curContents != NULL );
		// in case the contents is already presented, make invalid 
		for ( inx=0; inx<paramFileInfo_da.cnt; inx++ ) {
			if ( paramFileInfo(inx).valid &&
				strcmp( paramFileInfo(inx).contents, curContents ) == 0 ) {
					paramFileInfo(inx).valid = FALSE;
					redrawList = TRUE;
					break;
			}
		}

		DYNARR_APPEND( paramFileInfo_t, paramFileInfo_da, 10 );
		paramFileInfo(curParamFileIndex).name = MyStrdup( fileName[ i ] );
		paramFileInfo(curParamFileIndex).valid = TRUE;
		paramFileInfo(curParamFileIndex).deletedShadow =
			paramFileInfo(curParamFileIndex).deleted = FALSE;
		paramFileInfo(curParamFileIndex).contents = curContents;

		if ( paramFilePG.win ) {
			if ( redrawList ) {
				ParamFileLoadList();
			} else {
				strcpy( message, ((!paramFileSel) && paramFileInfo(curParamFileIndex).contents)?
					paramFileInfo(curParamFileIndex).contents:
				paramFileInfo(curParamFileIndex).name );
				wListAddValue( paramFileL, message, chkbox_bm, (void*)(intptr_t)curParamFileIndex );
				wListSetIndex( paramFileL, wListGetCount(paramFileL)-1 );
			}
		}

		wPrefSetString( "Parameter File Map", curContents,
			paramFileInfo(curParamFileIndex).name );
	}
	curParamFileIndex = PARAM_CUSTOM;
	DoChangeNotification( CHANGE_PARAMS );
	return TRUE;
}


static void ParamFileBrowse( void * junk )
{
	wFilSelect( paramFile_fs, curParamDir );
	return;
}

/**
 * Update the action button. If at least one selected file is unloaded, the action button
 * is set to 'Reload'. If all selected files are loaded, the button will be set to 'Unload'.
 *
 * \param varname1 IN this is a variable
 * \return 
 */

static void UpdateParamFileButton(
		wIndex_t fileInx )
{
	wIndex_t selcnt = wListGetSelectedCount( paramFileL );
	wIndex_t inx, cnt;
	
	// set the default
	wButtonSetLabel( paramFileActionB, _("Unload"));
	paramFilePLs[ I_PRMFILACTION ].context = FALSE;
	
	//nothing selected -> leave
	if( selcnt <= 0 )
		return;

	// get the number of items in list
	cnt = wListGetCount( paramFileL );

	// walk through the whole list box
	for ( inx=0; inx<cnt; inx++ ) 
	{
		if ( wListGetItemSelected( (wList_p)paramFileL, inx )) 
		{
			// if item is selected, get status
			fileInx = (intptr_t)wListGetItemContext( paramFileL, inx );
	
			if (fileInx < 0 || fileInx >= paramFileInfo_da.cnt)
				return;
			if( paramFileInfo(fileInx).deleted ) {
				// if selected file was unloaded, set button to reload and finish loop
				wButtonSetLabel( paramFileActionB, _("Reload"));
				paramFilePLs[ I_PRMFILACTION ].context = (void *)TRUE;
				break;
			} 
		}
	}
}


/**
 * Unload selected files. 
 *
 * \param action IN FALSE = unload, TRUE = reload parameter files
 * \return
 */

static void ParamFileAction( void * action )
{
	wIndex_t selcnt = wListGetSelectedCount( paramFileL );
	wIndex_t inx, cnt;
	wIndex_t fileInx;
	unsigned newDeletedState;

	if( action )
		newDeletedState = FALSE;
	else
		newDeletedState = TRUE;
	
	//nothing selected -> leave
	if( selcnt <= 0 )
		return;

	// get the number of items in list
	cnt = wListGetCount( paramFileL );

	// walk through the whole list box
	for ( inx=0; inx<cnt; inx++ ) 
	{
		if ( wListGetItemSelected( (wList_p)paramFileL, inx ) ) 
		{
			fileInx = (intptr_t)wListGetItemContext( paramFileL, inx );

			// set the desired state
			paramFileInfo(fileInx).deleted = newDeletedState;

			strcpy( message, ((!paramFileSel) && paramFileInfo(fileInx).contents)?
						 paramFileInfo(fileInx).contents:
						 paramFileInfo(fileInx).name );
			wListSetValues( paramFileL, inx, message, (paramFileInfo(fileInx).deleted)?mtbox_bm:chkbox_bm, (void*)(intptr_t)fileInx );
		}
	}
	DoChangeNotification( CHANGE_PARAMS );
	UpdateParamFileButton( fileInx );
}

/**
 * Select all files in the list and set action button
 *
 * \param junk IN ignored
 * \return 
 */

static void ParamFileSelectAll( void *junk )
{
	wListSelectAll( paramFileL );
	UpdateParamFileButton( 0 );
}

static void ParamFileOk( void * junk )
{
	wIndex_t fileInx;
	for ( fileInx = 0; fileInx < paramFileInfo_da.cnt; fileInx++ )
		paramFileInfo(fileInx).deletedShadow = paramFileInfo(fileInx).deleted;
	wHide( paramFileW );
}


static void ParamFileCancel( wWin_p junk )
{
	wIndex_t fileInx;
	for ( fileInx = 0; fileInx < paramFileInfo_da.cnt; fileInx++ )
		paramFileInfo(fileInx).deleted = paramFileInfo(fileInx).deletedShadow;
	wHide( paramFileW );
	DoChangeNotification( CHANGE_PARAMS );
}


static void ParamFilesChange( long changes )
{
#ifdef LATER
	int fileInx;
	wIndex_t listInx;
	if ((changes&CHANGE_PARAMS) == 0 ||
		paramFileW == NULL || !wWinIsVisible(paramFileW) )
		return;
	wControlShow( (wControl_p)paramFileL, FALSE );
	listInx = wListGetIndex(paramFileL);
	wListClear( paramFileL );
	for ( fileInx = 0; fileInx < paramFileInfo_da.cnt; fileInx++ ) {
		if (paramFileInfo(fileInx).valid) {
			strcpy( message, ((!paramFileSel) && paramFileInfo(fileInx).contents)?
						paramFileInfo(fileInx).contents:
						paramFileInfo(fileInx).name );
			wListAddValue( paramFileL, message, (paramFileInfo(fileInx).deleted)?mtbox_bm:chkbox_bm, (void*)fileInx );
		}
	}
	wListSetIndex( paramFileL, listInx );
	wControlShow( (wControl_p)paramFileL, TRUE );
#endif
}


static void ParamFileDlgUpdate(
		paramGroup_p pg,
		int inx,
		void * valueP )
{
	switch (inx) {
	case I_PRMFILLIST:
		UpdateParamFileButton( (wIndex_t)(long)wListGetItemContext(paramFileL,wListGetIndex(paramFileL)) );
		break;
	case I_PRMFILTOGGLE:
		ParamFileLoadList();
		break;
	}
}


#include "bitmaps/mtbox.xbm"
#include "bitmaps/chkbox.xbm"
static void DoParamFiles( void * junk )
{
	wIndex_t listInx;
	void * data;

	if (paramFileW == NULL) {
		const char * dir;
		dir = wPrefGetString( "file", "paramdir" );
		if (dir != NULL)
			strcpy( curParamDir, dir );
		else {
			// in case there is no preference setting, use the installation's param directory as default
			char *str;
			MakeFullpath(&str, libDir, PARAM_SUBDIR, NULL);
			strcpy( curParamDir, str );
			free(str);
		}
		mtbox_bm = wIconCreateBitMap( mtbox_width, mtbox_height, mtbox_bits, drawColorBlack );
		chkbox_bm = wIconCreateBitMap( chkbox_width, chkbox_height, chkbox_bits, drawColorBlack );
		paramFileW = ParamCreateDialog( &paramFilePG, MakeWindowTitle(_("Parameter Files")), _("Ok"), ParamFileOk, ParamFileCancel, TRUE, NULL, 0, ParamFileDlgUpdate );
		paramFile_fs = wFilSelCreate( mainW, FS_LOAD, FS_MULTIPLEFILES, _("Load Parameters"), _("Parameter files|*.xtp"), LoadParamFile, NULL );
		ParamFileLoadList();
	}
	ParamLoadControls( &paramFilePG );
	ParamGroupRecord( &paramFilePG );
	if ((listInx = wListGetValues( paramFileL, NULL, 0, NULL, &data ))>=0)
		UpdateParamFileButton( (wIndex_t)(long)data );
	ParamFileLoadList();
	wShow( paramFileW );
}


EXPORT addButtonCallBack_t ParamFilesInit( void )
{
	BOOL_T initted = FALSE;
	if (!initted) {
		ParamRegister( &paramFilePG );
		RegisterChangeNotification( ParamFilesChange );
		initted = TRUE;
	}
	return &DoParamFiles;
}