#include <AppKit/NSGraphics.h>
#include <AppKit/DPSOperators.h>

#include "QF/sys.h"

#include "Clipper.h"
#include "Map.h"
#include "XYView.h"
#include "ZView.h"
#include "CameraView.h"
#include "QuakeEd.h"

id          clipper_i;

@implementation Clipper

-init
{
	[super init];
	clipper_i = self;
	return self;
}

-(BOOL) hide
{
	int         oldnum;

	oldnum = num;
	num = 0;
	return (oldnum > 0);
}

-flipNormal
{
	vec3_t      temp;

	if (num == 2) {
		VectorCopy (pos[0], temp);
		VectorCopy (pos[1], pos[0]);
		VectorCopy (temp, pos[1]);
	} else if (num == 3) {
		VectorCopy (pos[0], temp);
		VectorCopy (pos[2], pos[0]);
		VectorCopy (temp, pos[2]);
	} else {
		Sys_Printf ("no clipplane");
		NSBeep ();
	}

	return self;
}

-(BOOL) getFace:(face_t *) f
{
	vec3_t      v1, v2, norm;
	int         i;

	VectorCopy (vec3_origin, plane.normal);
	plane.dist = 0;
	if (num < 2)
		return NO;
	if (num == 2) {
		VectorCopy (pos[0], pos[2]);
		pos[2][2] += 16;
	}

	for (i = 0; i < 3; i++)
		VectorCopy (pos[i], f->planepts[i]);

	VectorSubtract (pos[2], pos[0], v1);
	VectorSubtract (pos[1], pos[0], v2);

	CrossProduct (v1, v2, norm);
	VectorNormalize (norm);

	if (!norm[0] && !norm[1] && !norm[2])
		return NO;

	[texturepalette_i getTextureDef:&f->texture];

	return YES;
}

/*
================
XYClick
================
*/
-XYClick:(NSPoint) pt
{
	int         i;
	vec3_t      new;

	new[0] =[xyview_i snapToGrid:pt.x];
	new[1] =[xyview_i snapToGrid:pt.y];
	new[2] =[map_i currentMinZ];

// see if a point is allready there
	for (i = 0; i < num; i++) {
		if (new[0] == pos[i][0] && new[1] == pos[i][1]) {
			if (pos[i][2] ==[map_i currentMinZ])
				pos[i][2] =[map_i currentMaxZ];
			else
				pos[i][2] =[map_i currentMinZ];
			[quakeed_i updateAll];
			return self;
		}
	}


	if (num == 3)
		num = 0;

	VectorCopy (new, pos[num]);
	num++;

	[quakeed_i updateAll];

	return self;
}

/*
================
XYDrag
================
*/
-(BOOL) XYDrag:(NSPoint *) pt
{
	int         i;

	for (i = 0; i < 3; i++) {
		if (fabs (pt->x - pos[i][0] > 10) || fabs (pt->y - pos[i][1] > 10))
			continue;
		// drag this point

	}

	return NO;
}

-ZClick:(NSPoint) pt
{
	return self;
}

//=============================================================================

-carve
{
	[map_i makeSelectedPerform:@selector (carveByClipper)];
	num = 0;
	return self;
}


-cameraDrawSelf
{
	vec3_t      mid;
	int         i;

	linecolor (1, 0.5, 0);

	for (i = 0; i < num; i++) {
		VectorCopy (pos[i], mid);
		mid[0] -= 8;
		mid[1] -= 8;
		CameraMoveto (mid);
		mid[0] += 16;
		mid[1] += 16;
		CameraLineto (mid);

		VectorCopy (pos[i], mid);
		mid[0] -= 8;
		mid[1] += 8;
		CameraMoveto (mid);
		mid[0] += 16;
		mid[1] -= 16;
		CameraLineto (mid);
	}

	return self;
}

-XYDrawSelf
{
	int         i;
	char        text[8];

	PSsetrgbcolor (1, 0.5, 0);
	GSSetFont (DEFCTXT, [NSFont fontWithName: @"Helvetica-Medium"
	                                    size: 10 / [xyview_i currentScale]]);
	PSrotate (0);

	for (i = 0; i < num; i++) {
		PSmoveto (pos[i][0] - 4, pos[i][1] - 4);
		sprintf (text, "%i", i);
		PSshow (text);
		PSstroke ();
		PSarc (pos[i][0], pos[i][1], 10, 0, 360);
		PSstroke ();
	}
	return self;
}

-ZDrawSelf
{
	int         i;
	char        text[8];

	PSsetrgbcolor (1, 0.5, 0);
	GSSetFont (DEFCTXT, [NSFont fontWithName: @"Helvetica-Medium"
	                                    size: 10 / [zview_i currentScale]]);
	PSrotate (0);

	for (i = 0; i < num; i++) {
		PSmoveto (-28 + i * 8 - 4, pos[i][2] - 4);
		sprintf (text, "%i", i);
		PSshow (text);
		PSstroke ();
		PSarc (-28 + i * 8, pos[i][2], 10, 0, 360);
		PSstroke ();
	}
	return self;
}

@end