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/** \file cstraigh.c
* STRAIGHT
*/
/* 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 <math.h>
#include "cstraigh.h"
#include "cundo.h"
#include "fileio.h"
#include "i18n.h"
#include "messages.h"
#include "param.h"
#include "track.h"
#include "utility.h"
/*
* STATE INFO
*/
static struct {
coOrd pos0, pos1;
track_p trk;
EPINX_T ep;
BOOL_T down;
} Dl;
static STATUS_T CmdStraight( wAction_t action, coOrd pos )
{
track_p t;
DIST_T dist;
coOrd p;
switch (action) {
case C_START:
Dl.pos0=pos;
Dl.pos1=pos;
Dl.trk = NULL;
Dl.ep=-1;
Dl.down = FALSE;
InfoMessage( _("Place 1st end point of straight track + Shift -> snap to unconnected endpoint") );
return C_CONTINUE;
case C_DOWN:
p = pos;
BOOL_T found = FALSE;
Dl.trk = NULL;
if ((MyGetKeyState() & WKEY_SHIFT) != 0) {
if ((t = OnTrack(&p, FALSE, TRUE)) != NULL) {
EPINX_T ep = PickUnconnectedEndPointSilent(p, t);
if (ep != -1) {
Dl.trk = t;
Dl.ep = ep;
pos = GetTrkEndPos(t, ep);
found = TRUE;
} else {
InfoMessage(_("No unconnected end-point on track - Try again or release Shift and click"));
Dl.pos0=pos;
Dl.pos1=pos;
return C_CONTINUE;
}
} else {
InfoMessage(_("Not on a track - Try again or release Shift and click"));
Dl.pos0=pos;
Dl.pos1=pos;
return C_CONTINUE;
}
}
Dl.down = TRUE;
if (!found) SnapPos( &pos );
Dl.pos0 = pos;
InfoMessage( _("Drag to place 2nd end point") );
DYNARR_SET( trkSeg_t, tempSegs_da, 1 );
tempSegs(0).color = wDrawColorBlack;
tempSegs(0).width = 0;
tempSegs_da.cnt = 0;
tempSegs(0).type = SEG_STRTRK;
tempSegs(0).u.l.pos[0] = pos;
return C_CONTINUE;
case C_MOVE:
if (!Dl.down) return C_CONTINUE;
DrawSegs( &tempD, zero, 0.0, &tempSegs(0), tempSegs_da.cnt, trackGauge, wDrawColorBlack );
ANGLE_T angle, angle2;
if (Dl.trk) {
angle = NormalizeAngle(GetTrkEndAngle( Dl.trk, Dl.ep));
angle2 = NormalizeAngle(FindAngle(pos, Dl.pos0)-angle);
if (angle2 > 90.0 && angle2 < 270.0)
Translate( &pos, Dl.pos0, angle, FindDistance( Dl.pos0, pos ) );
else pos = Dl.pos0;
} else SnapPos( &pos );
InfoMessage( _("Straight Track Length=%s Angle=%0.3f"),
FormatDistance(FindDistance( Dl.pos0, pos )),
PutAngle(FindAngle( Dl.pos0, pos )) );
tempSegs(0).u.l.pos[1] = pos;
tempSegs_da.cnt = 1;
DrawSegs( &tempD, zero, 0.0, &tempSegs(0), tempSegs_da.cnt, trackGauge, wDrawColorBlack );
return C_CONTINUE;
case C_UP:
if (!Dl.down) return C_CONTINUE;
DrawSegs( &tempD, zero, 0.0, &tempSegs(0), tempSegs_da.cnt, trackGauge, wDrawColorBlack );
tempSegs_da.cnt = 0;
if (Dl.trk) {
angle = NormalizeAngle(GetTrkEndAngle( Dl.trk, Dl.ep));
angle2 = NormalizeAngle(FindAngle(pos, Dl.pos0)-angle);
if (angle2 > 90.0 && angle2 < 270.0)
Translate( &pos, Dl.pos0, angle, FindDistance( Dl.pos0, pos ));
else pos = Dl.pos0;
} else SnapPos( &pos );
if ((dist=FindDistance( Dl.pos0, pos )) <= minLength) {
ErrorMessage( MSG_TRK_TOO_SHORT, "Straight ", PutDim(fabs(minLength-dist)) );
return C_TERMINATE;
}
UndoStart( _("Create Straight Track"), "newStraight" );
t = NewStraightTrack( Dl.pos0, pos );
if (Dl.trk) {
ConnectTracks(Dl.trk, Dl.ep, t, 0);
}
UndoEnd();
DrawNewTrack(t);
return C_TERMINATE;
case C_REDRAW:
case C_CANCEL:
DrawSegs( &tempD, zero, 0.0, &tempSegs(0), tempSegs_da.cnt, trackGauge, wDrawColorBlack );
Dl.down = FALSE;
return C_CONTINUE;
default:
return C_CONTINUE;
}
}
#include "bitmaps/straight.xpm"
void InitCmdStraight( wMenu_p menu )
{
AddMenuButton( menu, CmdStraight, "cmdStraight", _("Straight Track"), wIconCreatePixMap(straight_xpm), LEVEL0_50, IC_STICKY|IC_POPUP2, ACCL_STRAIGHT, NULL );
}
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