/*
 * Copyright (C) 2001-2003, R3vis Corporation.
 *
 * 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,
 * or visit http://www.gnu.org/copyleft/gpl.html.
 *
 * Contributor(s):
 *   Wes Bethel, R3vis Corporation, Marin County, California
 *
 * The OpenRM project is located at http://openrm.sourceforge.net/.
 */
/*
 * $Id: markers2d.c,v 1.5 2003/04/13 18:13:23 wes Exp $
 * $Revision: 1.5 $
 * $Name: OpenRM-1-5-2-RC1 $
 * $Log: markers2d.c,v $
 * Revision 1.5  2003/04/13 18:13:23  wes
 * Updated copyright dates.
 *
 * Revision 1.4  2003/01/16 22:22:45  wes
 * Updated all source files to reflect new organization of header files: all
 * headers that were formerly located in include/rmaux, include/rmv and
 * include/rmi are now located in include/rm.
 *
 * Revision 1.3  2002/06/17 00:39:40  wes
 * Updated copyright line.
 *
 * Revision 1.2  2001/07/15 22:33:19  wes
 * Added rmPipeDelete to the end of all demo progs. For those that use
 * an initfunc, added a new RMnode * parm (which is unused, except for rm2screen).
 *
 * Revision 1.1  2001/06/03 17:54:06  wes
 * Initial entry. This program is currently non-operational pending some
 * work inside OpenRM that will separate access to 2d geometric markers from
 * the RMV library.
 *
 *
 */

/*
 * June 3, 2001 - this program is not yet operational. Some additional
 * work is needed to separate 2d geometric markers from the RMV library.
 * wes
 */

#include <rm/rm.h>
#include <rm/rmv.h>
#include <rm/rmaux.h>
#include "procmode.h"

static RMnode *MyRoot;
int img_width=800,img_height=480;

typedef struct
{
    RMvertex2D p;
    char string[54];
} labelStruct;

#define CZERO  0.1
#define CONE   0.2
#define CTWO   0.3
#define CTHREE 0.4
#define CFOUR  0.5
#define CFIVE  0.6
#define CSIX   0.7
#define CSEVEN 0.8

#define HHW 0.05
/*#define HHW 0.05 */

#define NUM_COLUMN_LABELS 1
#define NUM_ROW_LABELS    8

labelStruct columnLabels[NUM_COLUMN_LABELS] =
{
    {
	{CONE-1.8*HHW, 1.F}, "Markers"
    }
};

labelStruct rowLabels[NUM_ROW_LABELS] =
{
    {
	{CONE-1.8*HHW, CSEVEN}, "RMV_2DMARKER_SQUARE"
    },
    {
	{CONE-1.8*HHW, CSIX}, "RMV_2DMARKER_CROSS"
    },
    {
	{CONE-1.8*HHW, CFIVE}, "RMV_2DMARKER_X"
    },
    {
	{CONE-1.8*HHW, CFOUR}, "RMV_2DMARKER_NORTHTRIANGLE"
    },
    {
	{CONE-1.8*HHW, CTHREE}, "RMV_2DMARKER_BOWTIE"
    },
    {
	{CONE-1.8*HHW, CTWO}, "RMV_2DMARKER_SOUTHTRIANGLE"
    },
    {
	{CONE-1.8*HHW, CONE}, "RMV_2DMARKER_DIAMOND"
    },
    {
	{CONE-1.8*HHW, CZERO}, "RMV_2DMARKER_NORTHTRIANGLE_FILLED"
    }
};

#define NUM_MARKERS 8

RMenum markerTypes[NUM_MARKERS] =
{
    RMV_2DMARKER_SQUARE,
    RMV_2DMARKER_CROSS,
    RMV_2DMARKER_X,
    RMV_2DMARKER_NORTHTRIANGLE,
    RMV_2DMARKER_BOWTIE,
    RMV_2DMARKER_SOUTHTRIANGLE,
    RMV_2DMARKER_DIAMOND,
    RMV_2DMARKER_NORTHTRIANGLE_FILLED
};

RMvertex2D markersVerts[NUM_MARKERS] =
{
    {CZERO, 0.0F},
    {CONE, 0.0F},
    {CTWO, 0.0F},
    {CTHREE, 0.0F},
    {CFOUR, 0.0F},
    {CFIVE, 0.0F},
    {CSIX, 0.0F},
    {CSEVEN, 0.0F}
};

float markerYCoords[NUM_MARKERS] =
{
    CZERO, CONE, CTWO, CTHREE, CFOUR, CFIVE, CSIX, CSEVEN
};

float markerScale[NUM_MARKERS] =
{
    0.01, 0.05, 0.1, 0.25, 0.5, 1.0, 3.0
};

void
my_set_scene(RMnode *addTo)
{
    RMcamera2D *c = rmCamera2DNew();;

    rmDefaultCamera2D(c);	/* assign it some default values. */

    /* change the default scene camera from (0,0) to (1,1) */
    rmCamera2DSetExtents(c, -0.25F, -0.2F, 1.25F, 1.2F);

    /* add the camera to "my root's" scene parms. */
    rmNodeSetSceneCamera2D(addTo,c);
}

void
makeMarkers(RMenum markerType,
	    int nmarkers,
	    RMvertex2D *markerVerts,
	    float markerYCoord,
	    float *markerScales)
{
    RMinternalMarker2D *m;
    int i;
    RMvertex2D *v = rmVertex2DNew(nmarkers);

    memcpy((void *)v, (void *)markerVerts, sizeof(RMvertex2D)*nmarkers);
    for (i=0;i<nmarkers;i++)
	v[i].y = markerYCoord;
    
    m = rmInternalMarker2DNew(rmv2DMarkerTools[markerType].nv,
			      rmv2DMarkerTools[markerType].gl_begin_flag,
			      rmv2DMarkerTools[markerType].shape);
    
    rmPrimitiveSetVertex2D(t, npts, v, RM_COPY_DATA, NULL);

#if 0
    if (c)
    {
        rmPrimitiveSetColor4D(t, npts, c, RM_COPY_DATA, NULL);
	rmColor4DDelete(c);
    }
#endif

    rmPrimitiveSetMarkerScale(t, nmarkers, markerScales, RM_COPY_DATA, NULL);
    rmPrimitiveSetMarkerPrims(t, 1, &m);

}

void
my_build_objs(void)
{
    int i,limit;
    RMprimitive *tlist;
    RMnode *textRoot;
    RMnode *textNode;
    RMnode *markersRoot;

    MyRoot = rmNodeNew("MyRoot", RM_RENDERPASS_2D, RM_RENDERPASS_OPAQUE);
    textRoot = rmNodeNew("textRoot",RM_RENDERPASS_2D, RM_RENDERPASS_OPAQUE);
    markersRoot = rmNodeNew("linesRoot",RM_RENDERPASS_2D,
			    RM_RENDERPASS_OPAQUE);
    rmNodeAddChild(rmRootNode(),MyRoot); 
    rmNodeAddChild(MyRoot,textRoot);
    rmNodeAddChild(MyRoot,markersRoot);

    limit = NUM_MARKERS;
    for (i=0;i<limit;i++)
    {
	RMnode *n;
	RMprimitive *p;
	char buf[32];

	sprintf(buf,"marker-%d",i);
	n = rmNodeNew(buf,RM_RENDERPASS_2D,RM_RENDERPASS_OPAQUE);

	p = makeMarkers(markerTypes[i],NUM_MARKERS,markerVerts,
			markerYCoords[i],makerScale);
	
	rmNodeAddPrimitive(n,p);
#if 0
	rmPrimitiveSetVertex2D(p,2,lines[i].p,RM_COPY_DATA,NULL);
	rmNodeSetLineStyle(n,lines[i].lineStyle);
	rmNodeSetLineWidth(n,lines[i].lineWidth);
#endif
	rmNodeAddChild(markersRoot, n);
    }

    /*
     * for all the column headers, we have to set node-level text properties
     * to declare horizontal centering for justification, and use a smaller-
     * than-default font size.
     */
    limit = NUM_COLUMN_LABELS;
    for (i=0;i<limit;i++) 
    {
	char name[32];
	char *strings[1];
	RMtextProps *tp;
	RMcolor4D c={1.0F, 1.0F, 0.5F, 1.0F};

	sprintf(name,"text-%d",i);
	
	textNode = rmNodeNew(name,RM_RENDERPASS_2D,RM_RENDERPASS_OPAQUE);
	rmNodeSetUnlitColor(textNode, &c);
	tlist = rmPrimitiveNew(RM_TEXT);
	rmNodeAddPrimitive(textNode, tlist);
	rmNodeAddChild(textRoot, textNode);
	
	rmPrimitiveSetVertex2D(tlist,1,
			       &(columnLabels[i].p), /* pointer to stuff */
			       RM_COPY_DATA, /* let RM manage this data */
			       NULL); /* don't need a freefunc for RM_COPY_DATA */
	
	strings[0] = columnLabels[i].string;
	rmPrimitiveSetText(tlist,1,strings);

	tp = rmTextPropsNew();
	rmTextPropsSetAttribs(tp,
			      RM_FONT_SANS, /* font family */
			      RM_FONT_M, /* size */
			      RM_FALSE,	/* embolden? */
			      RM_FALSE,	/* italicize? */
			      RM_CENTER, /* horiz justification */
			      RM_BOTTOM); /* vertical justification */
	
	rmNodeSetSceneTextProps(textNode, tp);
	rmTextPropsDelete(tp);
    }
    
    /*
     * for all the column headers, we have to set node-level text properties
     * to declare horizontal centering for justification, and use a smaller-
     * than-default font size.
     */
    limit = NUM_ROW_LABELS;
    for (i=0;i<limit;i++) 
    {
	char name[32];
	char *strings[1];
	RMtextProps *tp;
	RMcolor4D c={0.5F, 1.0F, 0.5F, 1.0F};

	sprintf(name,"text-%d",i);
	
	textNode = rmNodeNew(name,RM_RENDERPASS_2D,RM_RENDERPASS_OPAQUE);
	rmNodeSetUnlitColor(textNode,&c);
	tlist = rmPrimitiveNew(RM_TEXT);
	rmNodeAddPrimitive(textNode, tlist);
	rmNodeAddChild(textRoot, textNode);
	
	rmPrimitiveSetVertex2D(tlist,1,
			       &(rowLabels[i].p), /* pointer to stuff */
			       RM_COPY_DATA, /* let RM manage this data */
			       NULL); /* don't need a freefunc for RM_COPY_DATA */
	
	strings[0] = rowLabels[i].string;
	rmPrimitiveSetText(tlist,1,strings);

	tp = rmTextPropsNew();
	rmTextPropsSetAttribs(tp,
			      RM_FONT_SANS, /* font family */
			      RM_FONT_XXS, /* size */
			      RM_FALSE,	/* embolden? */
			      RM_FALSE,	/* italicize? */
			      RM_RIGHT, /* horiz justification */
			      RM_BOTTOM); /* vertical justification */
	
	rmNodeSetSceneTextProps(textNode, tp);
	rmTextPropsDelete(tp);
    }
    
#if 0
    /*
     * set text justification parameter, controls justification for all
     * text prims at the given node.
     */

    {
        RMvertex3D bmin,bmax,center;

        rmNodeUnionAllBoxes(rmRootNode()); 

	rmNodeGetBoundingBox(rmRootNode(),&bmin,&bmax);
	center.x = bmin.x + 0.5F *(bmax.x - bmin.x);
	center.y = bmin.y + 0.5F *(bmax.y - bmin.y);
	center.z = bmin.z + 0.5F *(bmax.z - bmin.z);

	rmNodeSetCenter(rmRootNode(),&center);
    }
#endif
    {
	RMcolor4D bgcolor={0.2,0.2,0.3,1.0};
	/*
	 * assign a background color to take effect at "MyRoot"
	 */
	rmNodeSetSceneBackgroundColor(MyRoot,&bgcolor);
    }
}

void
myinitfunc(RMpipe *p)
{
    my_build_objs();
    my_set_scene();
    rmauxUI(rmRootNode(),p);

    /*
     * set handler to reset aspect ratio when the window is resized.
     */
    rmauxSetResizeFunc(p, MyRoot, rmauxDefaultResizeFunc);
    
    rmFrame(p,rmRootNode());
    rmFrame(p,rmRootNode());
}

#ifdef RM_WIN
int WINAPI WinMain (HINSTANCE hInstance,
		    HINSTANCE hPrevInstance,
                    LPSTR lpszCmdLine, int nCmdShow)
{
    MSG      msg; 
    HWND     hWnd; 
    void *fptr;
#else  /* assume RM_X */
int
main()
{
    void *msg;			/* needed for rmauxEventLoop
				 win32/unix API consistency */
#endif
    int status;
    RMpipe *pipe=NULL;
    RMenum processingMode = DEFAULT_PROCESSING_MODE; /* in procmode.h */

    /* 
     * first stage of RM initialization.
     */
    rmInit();

    /* 
     * create the rendering pipe. this step is required in both
     * Win32 and X.
     */
    status = rmPipeInit(getenv("DISPLAY"),RM_MONO_CHANNEL,&pipe);
    rmPipeSetProcessingMode(pipe, processingMode);
    
#ifdef RM_WIN
    {
        /*
	 * Win32: when a window is created, we have to tell windows the
	 * name of the "WndProc," the procedure that gets called by
	 * windows with events (the event loop) (contrast to the X model 
	 * where the name of the event loop is not part of the window). 
	 * Since we're using RMaux, we know about the event handling 
	 * procedure named "rmauxWndProc" and we provide that here. 
	 */

        fptr = (void *)(rmauxWndProc);
	hWnd = rmauxCreateW32Window(pipe,
				    NULL, /* no parent window */
				    20,20,img_width,img_height,
				    "OpenRM - 2D Markers",
				    hInstance,fptr);
	if (hWnd == 0)
	  exit(-1);

	/* 
	 * assign the new window handle to the rendering pipe.
	 */
	rmPipeSetWindow(pipe,hWnd, img_width, img_height);
    }
#endif
    
#ifdef RM_X
    {
	Window w;

	w = rmauxCreateXWindow(pipe,
			       (Window)NULL, /* parent window */
			       0,0,img_width,img_height,
			       "OpenRM - 2D Markers","OpenRM",1);
	/* 
	 * assign the window to the rendering pipe.
	 */
	rmPipeSetWindow(pipe,w,img_width,img_height);
    }
#endif
    /* 
     * specify the name of the "init" function. the "init" function is
     * mandatory in the Win32 world, and optional in the X world. 
     *
     * in Win32, we don't want to call RM services until OpenGL is
     * ready. we can be assured of readiness by using an init function
     * with RMaux. 
     *
     * in X, at this point, the window is mapped and OpenGL is ready,
     * and we could call our init function directly.
     */

    rmauxSetInitFunc(myinitfunc); 

    /* 
     * X-ism: once the window is created and assigned to the 
     * rendering pipe, rmUsePipe makes the OpenGL rendering context
     * current for the pipe+window combination. 
     *
     * this step is required for X. in these demo programs, it is not 
     * strictly required by Win32, as the newly created context is made
     * current as part of the OpenGL initialization sequence.
     */
    rmPipeMakeCurrent(pipe);	

    /*
     * set key handler function so this prog will exit on "q" key
     */
    rmauxSetKeyFunc(lone_pipe, rmauxDefaultKeyFunc);
    
    rmauxEventLoop(lone_pipe,rmRootNode(), &msg);

    rmPipeDelete(lone_pipe);
    rmFinish();

#ifdef RM_WIN
    return( msg.wParam );
#else
    return(1);
#endif
}