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/** \file cmisc.c
 * Handling of the 'Describe' dialog
 */

/*  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 "track.h"
#include "common.h"
#include "i18n.h"

/*****************************************************************************
 *
 * DESCRIPTION WINDOW
 *
 */


EXPORT wIndex_t describeCmdInx;
EXPORT BOOL_T inDescribeCmd;

static track_p descTrk;
static descData_p descData;
static descUpdate_t descUpdateFunc;
static coOrd descOrig, descSize;
static POS_T descBorder;
static wDrawColor descColor = 0;
static BOOL_T descUndoStarted;
static BOOL_T descNeedDrawHilite;
static wPos_t describeW_posy;
static wPos_t describeCmdButtonEnd;


static paramFloatRange_t rdata = { 0, 0, 100, PDO_NORANGECHECK_HIGH|PDO_NORANGECHECK_LOW };
static paramIntegerRange_t idata = { 0, 0, 100, PDO_NORANGECHECK_HIGH|PDO_NORANGECHECK_LOW };
static paramTextData_t tdata = { 300, 150 };
static char * pivotLabels[] = { N_("First"), N_("Middle"), N_("Second"), NULL };
static paramData_t describePLs[] = {
#define I_FLOAT_0		(0)
	{ PD_FLOAT, NULL, "F1", 0, &rdata },
	{ PD_FLOAT, NULL, "F2", 0, &rdata },
	{ PD_FLOAT, NULL, "F3", 0, &rdata },
	{ PD_FLOAT, NULL, "F4", 0, &rdata },
	{ PD_FLOAT, NULL, "F5", 0, &rdata },
	{ PD_FLOAT, NULL, "F6", 0, &rdata },
	{ PD_FLOAT, NULL, "F7", 0, &rdata },
	{ PD_FLOAT, NULL, "F8", 0, &rdata },
	{ PD_FLOAT, NULL, "F9", 0, &rdata },
	{ PD_FLOAT, NULL, "F10", 0, &rdata },
	{ PD_FLOAT, NULL, "F11", 0, &rdata },
	{ PD_FLOAT, NULL, "F12", 0, &rdata },
	{ PD_FLOAT, NULL, "F13", 0, &rdata },
	{ PD_FLOAT, NULL, "F14", 0, &rdata },
	{ PD_FLOAT, NULL, "F15", 0, &rdata },
	{ PD_FLOAT, NULL, "F16", 0, &rdata },
	{ PD_FLOAT, NULL, "F17", 0, &rdata },
	{ PD_FLOAT, NULL, "F18", 0, &rdata },
	{ PD_FLOAT, NULL, "F19", 0, &rdata },
	{ PD_FLOAT, NULL, "F20", 0, &rdata },
#define I_FLOAT_N		I_FLOAT_0+20

#define I_LONG_0		I_FLOAT_N
	{ PD_LONG, NULL, "I1", 0, &idata },
	{ PD_LONG, NULL, "I2", 0, &idata },
	{ PD_LONG, NULL, "I3", 0, &idata },
	{ PD_LONG, NULL, "I4", 0, &idata },
	{ PD_LONG, NULL, "I5", 0, &idata },
#define I_LONG_N		I_LONG_0+5

#define I_STRING_0		I_LONG_N
	{ PD_STRING, NULL, "S1", 0, (void*)300 },
	{ PD_STRING, NULL, "S2", 0, (void*)300 },
	{ PD_STRING, NULL, "S3", 0, (void*)300 },
	{ PD_STRING, NULL, "S4", 0, (void*)300 },
#define I_STRING_N		I_STRING_0+4

#define I_LAYER_0		I_STRING_N
	{ PD_DROPLIST, NULL, "Y1", 0, (void*)150, NULL, 0 },
#define I_LAYER_N		I_LAYER_0+1

#define I_COLOR_0		I_LAYER_N
	{ PD_COLORLIST, NULL, "C1", 0, NULL, N_("Color") },
#define I_COLOR_N		I_COLOR_0+1

#define I_LIST_0		I_COLOR_N
	{ PD_DROPLIST, NULL, "L1", 0, (void*)150, NULL, 0 },
	{ PD_DROPLIST, NULL, "L2", 0, (void*)150, NULL, 0 },
#define I_LIST_N		I_LIST_0+2

#define I_EDITLIST_0	I_LIST_N
	{ PD_DROPLIST, NULL, "LE1", 0, (void*)150, NULL, BL_EDITABLE },
#define I_EDITLIST_N	I_EDITLIST_0+1

#define I_TEXT_0		I_EDITLIST_N
	{ PD_TEXT, NULL, "T1", 0, &tdata },
#define I_TEXT_N		I_TEXT_0+1

#define I_PIVOT_0		I_TEXT_N
	{ PD_RADIO, NULL, "P1", 0, pivotLabels, N_("Pivot"), BC_HORZ|BC_NOBORDER, 0 }
#define I_PIVOT_N		I_PIVOT_0+1
	};

static paramGroup_t describePG = { "describe", 0, describePLs, sizeof describePLs/sizeof describePLs[0] };


static void DrawDescHilite( void )
{
	wPos_t x, y, w, h;
	if ( descNeedDrawHilite == FALSE )
		return;
	if (descColor==0)
		descColor = wDrawColorGray(87);
	w = (wPos_t)((descSize.x/mainD.scale)*mainD.dpi+0.5);
	h = (wPos_t)((descSize.y/mainD.scale)*mainD.dpi+0.5);
	mainD.CoOrd2Pix(&mainD,descOrig,&x,&y);
	wDrawFilledRectangle( mainD.d, x, y, w, h, descColor, wDrawOptTemp );
}



static void DescribeUpdate(
		paramGroup_p pg,
		int inx,
		void * data )
{
	coOrd hi, lo;
	descData_p ddp;
	if ( inx < 0 )
		return;
	ddp = (descData_p)pg->paramPtr[inx].context;
	if ( (ddp->mode&(DESC_RO|DESC_IGNORE)) != 0 )
		return;
	if ( ddp->type == DESC_PIVOT )
		return;
	if ( (ddp->mode&DESC_NOREDRAW) == 0 )
		DrawDescHilite();
	if ( !descUndoStarted ) {
		UndoStart( _("Change Track"), "Change Track" );
		descUndoStarted = TRUE;
	}
	UndoModify( descTrk );
	descUpdateFunc( descTrk, ddp-descData, descData, FALSE );
	if ( descTrk ) {
		GetBoundingBox( descTrk, &hi, &lo );
		if ( OFF_D( mapD.orig, mapD.size, descOrig, descSize ) ) {
			ErrorMessage( MSG_MOVE_OUT_OF_BOUNDS );
		}
	}
	if ( (ddp->mode&DESC_NOREDRAW) == 0 ) {
		descOrig = lo;
		descSize = hi;
		descOrig.x -= descBorder;
		descOrig.y -= descBorder;
		descSize.x -= descOrig.x-descBorder;
		descSize.y -= descOrig.y-descBorder;
		DrawDescHilite();
	}
	for ( inx = 0; inx < sizeof describePLs/sizeof describePLs[0]; inx++ ) {
		if ( (describePLs[inx].option & PDO_DLGIGNORE) != 0 )
			continue;
		ddp = (descData_p)describePLs[inx].context;
		if ( (ddp->mode&DESC_IGNORE) != 0 )
			continue;
		if ( (ddp->mode&DESC_CHANGE) == 0 )
			continue;
		ddp->mode &= ~DESC_CHANGE;
		ParamLoadControl( &describePG, inx );
	}
}


static void DescOk( void * junk )
{
	wHide( describePG.win );
	if ( descTrk )
		DrawDescHilite();

	descUpdateFunc( descTrk, -1, descData, !descUndoStarted );
	descTrk = NULL;
	if (descUndoStarted) {
		UndoEnd();
		descUndoStarted = FALSE;
	}
	descNeedDrawHilite = FALSE;
	Reset();
}


static struct {
		parameterType pd_type;
		long option;
		int first;
		int last;
		} descTypeMap[] = {
/*NULL*/		{ 0, 0 },
/*POS*/			{ PD_FLOAT, PDO_DIM,   I_FLOAT_0, I_FLOAT_N },
/*FLOAT*/		{ PD_FLOAT, 0,		   I_FLOAT_0, I_FLOAT_N },
/*ANGLE*/		{ PD_FLOAT, PDO_ANGLE, I_FLOAT_0, I_FLOAT_N },
/*LONG*/		{ PD_LONG,	0,		   I_LONG_0, I_LONG_N },
/*COLOR*/		{ PD_LONG,	0,		   I_COLOR_0, I_COLOR_N },
/*DIM*/			{ PD_FLOAT, PDO_DIM,   I_FLOAT_0, I_FLOAT_N },
/*PIVOT*/		{ PD_RADIO, 0,		   I_PIVOT_0, I_PIVOT_N },
/*LAYER*/		{ PD_DROPLIST,PDO_LISTINDEX,	   I_LAYER_0, I_LAYER_N },
/*STRING*/		{ PD_STRING,0,		   I_STRING_0, I_STRING_N },
/*TEXT*/		{ PD_TEXT,	PDO_DLGNOLABELALIGN, I_TEXT_0, I_TEXT_N },
/*LIST*/		{ PD_DROPLIST, PDO_LISTINDEX,	   I_LIST_0, I_LIST_N },
/*EDITABLELIST*/{ PD_DROPLIST, 0,	   I_EDITLIST_0, I_EDITLIST_N } };

static wControl_p AllocateButt( descData_p ddp, void * valueP, char * label, wPos_t sep )
{
	int inx;

	for ( inx = descTypeMap[ddp->type].first; inx<descTypeMap[ddp->type].last; inx++ ) {
		if ( (describePLs[inx].option & PDO_DLGIGNORE) != 0 ) {
			describePLs[inx].option = descTypeMap[ddp->type].option;
			if ( describeW_posy > describeCmdButtonEnd )
				describePLs[inx].option |= PDO_DLGUNDERCMDBUTT;
			describeW_posy += wControlGetHeight( describePLs[inx].control ) + sep;
			describePLs[inx].context = ddp;
			describePLs[inx].valueP = valueP;
			if ( label && ddp->type != DESC_TEXT ) {
				wControlSetLabel( describePLs[inx].control, label );
				describePLs[inx].winLabel = label;
			}
			return describePLs[inx].control;
		}
	}
	AbortProg( "allocateButt: can't find %d", ddp->type );
	return NULL;
}


static void DescribeLayout(
		paramData_t * pd,
		int inx,
		wPos_t colX,
		wPos_t * x,
		wPos_t * y )
{
	descData_p ddp;
	wPos_t w, h;

	if ( inx < 0 )
		return;
	if ( pd->context == NULL )
		return;
	ddp = (descData_p)pd->context;
	*y = ddp->posy;
	if ( ddp->type == DESC_POS &&
		 ddp->control0 != pd->control ) {
		*y += wControlGetHeight( pd->control ) + 3;
	} else if ( ddp->type == DESC_TEXT ) {
		w = tdata.width;
		h = tdata.height;
		wTextSetSize( (wText_p)pd->control, w, h );
	}
	wControlShow( pd->control, TRUE );
}


/**
 * Creation and modification of the Describe dialog box is handled here. As the number
 * of values for a track element depends on the specific type, this dialog is dynamically
 * updated to hsow the changable parameters only
 * 
 * \param IN title Description of the selected part, shown in window title bar
 * \param IN trk Track element to be described
 * \param IN data
 * \param IN update
 *
 */
static wList_p setLayerL;
void DoDescribe( char * title, track_p trk, descData_p data, descUpdate_t update )
{
	int inx;
	descData_p ddp;
	char * label;
	int ro_mode;

	if (!inDescribeCmd)
		return;

	descTrk = trk;
	descData = data;
	descUpdateFunc = update;
	describeW_posy = 0;
	if ( describePG.win == NULL ) {
		/* SDB 5.13.2005 */
		ParamCreateDialog( &describePG, _("Description"), _("Done"), DescOk,
			(paramActionCancelProc) DescribeCancel,
			TRUE, DescribeLayout, F_RECALLPOS,
			DescribeUpdate );
		describeCmdButtonEnd = wControlBelow( (wControl_p)describePG.helpB );
	}
	for ( inx=0; inx<sizeof describePLs/sizeof describePLs[0]; inx++ ) {
		describePLs[inx].option = PDO_DLGIGNORE;
		wControlShow( describePLs[inx].control, FALSE );
	}
	ro_mode = (GetLayerFrozen(GetTrkLayer(trk))?DESC_RO:0);
	if (ro_mode)
		for ( ddp=data; ddp->type != DESC_NULL; ddp++ ) {
			if ( ddp->mode&DESC_IGNORE )
				continue;
			ddp->mode |= ro_mode;
		}
	for ( ddp=data; ddp->type != DESC_NULL; ddp++ ) {
		if ( ddp->mode&DESC_IGNORE )
			continue;
		label = _(ddp->label);

		ddp->posy = describeW_posy;
		ddp->control0 = AllocateButt( ddp, ddp->valueP, label, (ddp->type == DESC_POS?3:3) );
		wControlActive( ddp->control0, ((ddp->mode|ro_mode)&DESC_RO)==0 );
		switch (ddp->type) {
		case DESC_POS:
			ddp->control1 = AllocateButt( ddp,
				&((coOrd*)(ddp->valueP))->y,
				"Y",
				3 );
			wControlActive( ddp->control1, ((ddp->mode|ro_mode)&DESC_RO)==0 );
			break;
		case DESC_LAYER:
           wListClear((wList_p)ddp->control0);  // Rebuild list on each invovation
           for ( inx = 0; inx<NUM_LAYERS; inx++ ) {
				if (!GetLayerFrozen(inx))				// Avoid Frozen layers.
				{
					sprintf( message, "%2d : %s", inx+1,  GetLayerName(inx) );
					wListAddValue( (wList_p)ddp->control0, message, NULL, (void*)(intptr_t)inx );
				}
			}
			break;
		default:
			break;
		}
	}
	ParamLayoutDialog( &describePG );
	ParamLoadControls( &describePG );
	sprintf( message, "%s (T%d)", title, GetTrkIndex(trk) );
	wWinSetTitle( describePG.win, message );
	wShow( describePG.win );
}


static void DescChange( long changes )
{
	 if ( (changes&CHANGE_UNITS) && describePG.win && wWinIsVisible(describePG.win) )
		ParamLoadControls( &describePG );
}

/*****************************************************************************
 *
 * SIMPLE DESCRIPTION
 *
 */


EXPORT void DescribeCancel( void )
{
		if ( describePG.win && wWinIsVisible(describePG.win) ) {
			if ( descTrk ) {
				descUpdateFunc( descTrk, -1, descData, TRUE );
				descTrk = NULL;
				DrawDescHilite();
			}
			wHide( describePG.win );
			if ( descUndoStarted ) {
				UndoEnd();
				descUndoStarted = FALSE;
			}
		}
		descNeedDrawHilite = FALSE;
}


static STATUS_T CmdDescribe( wAction_t action, coOrd pos )
{
	track_p trk;
	char msg[STR_SIZE];

	switch (action) {
	case C_START:
		InfoMessage( _("Select track to describe") );
		descUndoStarted = FALSE;
		return C_CONTINUE;

	case C_DOWN:
		if ((trk = OnTrack( &pos, FALSE, FALSE )) != NULL) {
			if ( describePG.win && wWinIsVisible(describePG.win) && descTrk ) {
				DrawDescHilite();
				descUpdateFunc( descTrk, -1, descData, TRUE );
				descTrk = NULL;
			}
			descBorder = mainD.scale*0.1;
			if ( descBorder < trackGauge )
				descBorder = trackGauge;
			inDescribeCmd = TRUE;
			GetBoundingBox( trk, &descSize, &descOrig );
			descOrig.x -= descBorder;
			descOrig.y -= descBorder;
			descSize.x -= descOrig.x-descBorder;
			descSize.y -= descOrig.y-descBorder;
			descNeedDrawHilite = TRUE;
			DrawDescHilite();
			DescribeTrack( trk, msg, 255 );
			inDescribeCmd = FALSE;
			InfoMessage( msg );
		} else
			InfoMessage( "" );
		return C_CONTINUE;

	case C_REDRAW:
		if (describePG.win && wWinIsVisible(describePG.win) && descTrk)
			DrawDescHilite();
		break;

	case C_CANCEL:
		DescribeCancel();
		return C_CONTINUE;
	}
	return C_CONTINUE;
}



#include "bitmaps/describe.xpm"

void InitCmdDescribe( wMenu_p menu )
{
	describeCmdInx = AddMenuButton( menu, CmdDescribe, "cmdDescribe", _("Properties"), wIconCreatePixMap(describe_xpm),
				LEVEL0, IC_CANCEL|IC_POPUP, ACCL_DESCRIBE, NULL );
	RegisterChangeNotification( DescChange );
	ParamRegister( &describePG );
	/*AddPlaybackProc( "DESCRIBE", playbackDescribe, NULL );*/
}