/******************************************/
/* Kicad: Common plot Postscript Routines */
/******************************************/

#include "fctsys.h"
#include "trigo.h"
#include "wxstruct.h"
#include "base_struct.h"
#include "common.h"
#include "plot_common.h"
#include "macros.h"
#include "kicad_string.h"

/*************************************************************************************/
void PS_PLOTTER::set_viewport( wxPoint offset,
	double aScale, int orient )
/*************************************************************************************/

/* Set the plot offset for the current plotting */
{
    wxASSERT(!output_file);
    plot_orient_options = orient;
    plot_offset = offset;
    plot_scale = aScale;
    device_scale = 1; /* PS references in decimils */
    set_default_line_width(100); /* epaisseur du trait standard en 1/1000 pouce */
}

/*************************************************************************************/
void PS_PLOTTER::set_default_line_width( int width )
/*************************************************************************************/

/* Set the default line width (in 1/1000 inch) for the current plotting
 */
{
    default_pen_width = width;      // epaisseur du trait standard en 1/1000 pouce
    current_pen_width = -1;
}

/***************************************/
void PS_PLOTTER::set_current_line_width( int width )
/***************************************/

/* Set the Current line width (in 1/1000 inch) for the next plot
 */
{
    wxASSERT(output_file);
    int pen_width;

    if( width >= 0 )
        pen_width = width;
    else
        pen_width = default_pen_width;

    if( pen_width != current_pen_width )
        fprintf( output_file, "%g setlinewidth\n",
		user_to_device_size(pen_width));

    current_pen_width = pen_width;
}


/******************************/
void PS_PLOTTER::set_color( int color )
/******************************/

/* Print the postscript set color command:
 * r g b setrgbcolor,
 * r, g, b  = color values (= 0 .. 1.0 )
 *
 * color = color index in ColorRefs[]
 */
{
    wxASSERT(output_file);

	/* Return at invalid color index */
	if(color < 0)
		return;

    if(color_mode)
    {
    	if (negative_mode)
    	{
    		fprintf( output_file, "%.3g %.3g %.3g setrgbcolor\n",
    				(double) 1.0-ColorRefs[color].m_Red / 255,
    				(double) 1.0-ColorRefs[color].m_Green / 255,
    				(double) 1.0-ColorRefs[color].m_Blue / 255 );
    	} else
    	{
       		fprintf( output_file, "%.3g %.3g %.3g setrgbcolor\n",
        				(double) ColorRefs[color].m_Red / 255,
        				(double) ColorRefs[color].m_Green / 255,
        				(double) ColorRefs[color].m_Blue / 255 );
    	}
    }
    else
    /* B/W Mode - Use BLACK or WHITE for all items
     * note the 2 colors are used in B&W mode, mainly by Pcbnew to draw holes in white on pads in black
     */
    {
    	int bwcolor = WHITE;
        if( color != WHITE )
           bwcolor = BLACK;
    	if (negative_mode)
    		fprintf( output_file, "%.3g %.3g %.3g setrgbcolor\n",
    				(double) 1.0-ColorRefs[bwcolor].m_Red / 255,
    				(double) 1.0-ColorRefs[bwcolor].m_Green / 255,
    				(double) 1.0-ColorRefs[bwcolor].m_Blue / 255 );
    	else
       		fprintf( output_file, "%.3g %.3g %.3g setrgbcolor\n",
        				(double) ColorRefs[bwcolor].m_Red / 255,
        				(double) ColorRefs[bwcolor].m_Green / 255,
        				(double) ColorRefs[bwcolor].m_Blue / 255 );
    }
}

void PS_PLOTTER::set_dash( bool dashed )
{
    wxASSERT(output_file);
    if (dashed)
	fputs("dashedline\n", stderr);
    else
	fputs("solidline\n", stderr);
}

/***************************************************************/
void PS_PLOTTER::rect( wxPoint p1, wxPoint p2, FILL_T fill, int width )
/***************************************************************/
{
    user_to_device_coordinates( p1 );
    user_to_device_coordinates( p2 );

    set_current_line_width( width );
    fprintf( output_file, "%d %d %d %d rect%d\n", p1.x, p1.y,
    p2.x-p1.x, p2.y-p1.y, fill );
}

/******************************************************/
void PS_PLOTTER::circle( wxPoint pos, int diametre, FILL_T fill, int width )
/******************************************************/
{
    wxASSERT(output_file);
    user_to_device_coordinates( pos );
    double rayon = user_to_device_size(diametre / 2.0);

    if( rayon < 1 )
        rayon = 1;

    set_current_line_width( width );
    fprintf(output_file, "%d %d %g cir%d\n", pos.x, pos.y, rayon, fill);
}


/**************************************************************************************/
void PS_PLOTTER::arc( wxPoint centre, int StAngle, int EndAngle, int rayon,
	FILL_T fill, int width )
/**************************************************************************************/

/* Plot an arc:
 * StAngle, EndAngle = start and end arc in 0.1 degree
 */
{
    wxASSERT(output_file);
    if( rayon <= 0 )
        return;

    set_current_line_width( width );

    // Calcul des coord du point de depart :
    user_to_device_coordinates( centre );
    rayon = user_to_device_size(rayon);
    if( plot_orient_options == PLOT_MIROIR )
        fprintf( output_file, "%d %d %d %g %g arc%d\n", centre.x, centre.y,
            rayon, (double) -EndAngle / 10, (double) -StAngle / 10,
            fill);
    else
        fprintf( output_file, "%d %d %d %g %g arc%d\n", centre.x, centre.y,
            rayon, (double) StAngle / 10, (double) EndAngle / 10,
            fill);
}


/*****************************************************************/
void PS_PLOTTER::poly( int nb_segm, int* coord, FILL_T fill, int width )
/*****************************************************************/

/** Function poly
 * @brief Draw a polygon ( a filled polygon if fill == 1 ) in POSTSCRIPT format
 * @param nb_segm = corner count
 * @param coord = corner list (a corner uses 2 int = X coordinate followed by Y  coordinate
 * @param fill :if true : filled polygon
 * @param  width = line width
 */
{
    wxASSERT(output_file);
    wxPoint pos;

    if( nb_segm <= 1 )
        return;

    set_current_line_width( width );

    pos.x = coord[0];
    pos.y = coord[1];
    user_to_device_coordinates( pos );
    fprintf( output_file, "newpath\n%d %d moveto\n", pos.x, pos.y );

    for(int ii = 1; ii < nb_segm; ii++ )
    {
        pos.x = coord[2 * ii];
        pos.y = coord[2 * ii + 1];
        user_to_device_coordinates( pos );
        fprintf( output_file, "%d %d lineto\n", pos.x, pos.y );
    }

    // Close path
    fprintf(output_file, "poly%d\n", fill);
}


/*************************************/
void PS_PLOTTER::pen_to( wxPoint pos, char plume )
/*************************************/

/* Routine to draw to a new position
 */
{
    wxASSERT(output_file);
    if( plume == 'Z' ) {
	if (pen_state != 'Z') {
	    fputs( "stroke\n", output_file );
	    pen_state = 'Z';
	    pen_lastpos.x = -1;
	    pen_lastpos.y = -1;
	}
        return;
    }

    user_to_device_coordinates( pos );
    if (pen_state == 'Z') {
	fputs( "newpath\n", output_file );
    }
    if (pen_state != plume || pos != pen_lastpos)
	fprintf( output_file, "%d %d %sto\n", pos.x, pos.y, (plume=='D')?"line":"move" );
    pen_state = plume;
    pen_lastpos = pos;
}


/***********************************************************/
void PS_PLOTTER::start_plot( FILE *fout)
/***********************************************************/

/* The code within this function (and the CloseFilePS function)
 * creates postscript files whose contents comply with Adobe's
 * Document Structuring Convention, as documented by assorted
 * details described within the following URLs:
 *
 * http://en.wikipedia.org/wiki/Document_Structuring_Conventions
 * http://partners.adobe.com/public/developer/en/ps/5001.DSC_Spec.pdf
 *
 *
 * BBox is the boundary box (position and size of the "client rectangle"
 * for drawings (page - margins) in mils (0.001 inch)
 */
{
    wxASSERT(!output_file);
    wxString     msg;

    output_file = fout;
    static const char*  PSMacro[] = {
        "/line {\n",
        "    newpath\n",
        "    moveto\n",
        "    lineto\n",
        "    stroke\n",
        "} bind def\n",
        "/cir0 { newpath 0 360 arc stroke } bind def\n",
        "/cir1 { newpath 0 360 arc gsave fill grestore stroke } bind def\n",
        "/cir2 { newpath 0 360 arc gsave fill grestore stroke } bind def\n",
        "/arc0 { newpath arc stroke } bind def\n",
        "/arc1 { newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke } bind def\n",
        "/arc2 { newpath 4 index 4 index moveto arc closepath gsave fill grestore stroke } bind def\n",
        "/poly0 { stroke } bind def\n",
        "/poly1 { closepath gsave fill grestore stroke } bind def\n",
        "/poly2 { closepath gsave fill grestore stroke } bind def\n",
        "/rect0 { rectstroke } bind def\n",
        "/rect1 { rectfill } bind def\n",
        "/rect2 { rectfill } bind def\n",
	"/linemode0 { 0 setlinecap 0 setlinejoin 0 setlinewidth } bind def\n",
	"/linemode1 { 1 setlinecap 1 setlinejoin } bind def\n",
	"/dashedline { [50 50] 0 setdash } bind def\n",
	"/solidline { [] 0 setdash } bind def\n",
        "gsave\n",
        "0.0072 0.0072 scale\n", // Configure postscript for decimils
        "linemode1\n",
        NULL
    };

    const double DECIMIL_TO_INCH = 0.0001;
    time_t       time1970 = time( NULL );

    fputs( "%!PS-Adobe-3.0\n", output_file );    // Print header

    fprintf( output_file, "%%%%Creator: %s\n", CONV_TO_UTF8( creator ) );

    // A "newline" character ("\n") is not included in the following string,
    // because it is provided by the ctime() function.
    fprintf( output_file, "%%%%CreationDate: %s", ctime( &time1970 ) );
    fprintf( output_file, "%%%%Title: %s\n", CONV_TO_UTF8( filename ) );
    fprintf( output_file, "%%%%Pages: 1\n");
    fprintf( output_file, "%%%%PageOrder: Ascend\n" );

    // Print boundary box en 1/72 pouce, box is in decimils
    const double CONV_SCALE = DECIMIL_TO_INCH * 72;

    // The coordinates of the lower left corner of the boundary
    // box need to be "rounded down", but the coordinates of its
    // upper right corner need to be "rounded up" instead.
    fprintf( output_file, "%%%%BoundingBox: 0 0 %d %d\n",
        (int) ceil( paper_size.y * CONV_SCALE),
	(int) ceil( paper_size.x * CONV_SCALE));

    // Specify the size of the sheet and the name associated with that size.
    // (If the "User size" option has been selected for the sheet size,
    // identify the sheet size as "Custom" (rather than as "User"), but
    // otherwise use the name assigned by KiCad for each sheet size.)
    //
    // (The Document Structuring Convention also supports sheet weight,
    // sheet colour, and sheet type properties being specified within a
    // %%DocumentMedia comment, but they are not being specified here;
    // a zero and two null strings are subsequently provided instead.)
    //
    // (NOTE: m_Size.y is *supposed* to be listed before m_Size.x;
    // the order in which they are specified is not wrong!)
    // Also note sheet->m_Size is given in mils, not in decimils and must be
    // sheet->m_Size * 10 in decimils
    if( sheet->m_Name.Cmp( wxT( "User" ) ) == 0 )
        fprintf( output_file, "%%%%DocumentMedia: Custom %d %d 0 () ()\n",
                 wxRound( sheet->m_Size.y * CONV_SCALE ),
                 wxRound( sheet->m_Size.x * CONV_SCALE ) );

    else  // ( if sheet->m_Name does not equal "User" )
        fprintf( output_file, "%%%%DocumentMedia: %s %d %d 0 () ()\n",
                 CONV_TO_UTF8( sheet->m_Name ),
                 wxRound( sheet->m_Size.y * 10 * CONV_SCALE ),
                 wxRound( sheet->m_Size.x * 10 * CONV_SCALE ) );

    fprintf( output_file, "%%%%Orientation: Landscape\n" );

    fprintf( output_file, "%%%%EndComments\n" );

    // Now specify various other details.

    // The following string has been specified here (rather than within
    // PSMacro[]) to highlight that it has been provided to ensure that the
    // contents of the postscript file comply with the details specified
    // within the Document Structuring Convention.
    fprintf( output_file, "%%%%Page: 1 1\n" );

    for(int ii = 0; PSMacro[ii] != NULL; ii++ )
    {
        fputs( PSMacro[ii], output_file );
    }

    // (If support for creating postscript files with a portrait orientation
    // is ever provided, determine whether it would be necessary to provide
    // an "else" command and then an appropriate "sprintf" command here.)
    fprintf( output_file, "%d 0 translate 90 rotate\n", paper_size.y);

    // Apply the scale adjustments
    if (plot_scale_adjX != 1.0 || plot_scale_adjY != 1.0)
	fprintf( output_file, "%g %g scale\n",
	    plot_scale_adjX, plot_scale_adjY);

    // Set default line width ( g_Plot_DefaultPenWidth is in user units )
    fprintf( output_file, "%g setlinewidth\n",
	    user_to_device_size(default_pen_width) );
}

/******************************************/
void PS_PLOTTER::end_plot()
/******************************************/
{
    wxASSERT(output_file);
    fputs( "showpage\ngrestore\n%%EOF\n", output_file );
    fclose( output_file );
    output_file = 0;
}

/***********************************************************************************/
void PS_PLOTTER::flash_pad_oval( wxPoint pos, wxSize size, int orient,
	GRTraceMode modetrace )
/************************************************************************************/

/* Trace 1 pastille PAD_OVAL en position pos_X,Y:
 * dimensions dx,dy,
 * orientation orient
 * La forme est tracee comme un segment
 */
{
    wxASSERT(output_file);
    int x0, y0, x1, y1, delta;

    // la pastille est ramenee a une pastille ovale avec dy > dx
    if( size.x > size.y )
    {
        EXCHG( size.x, size.y );
        orient += 900;
        if( orient >= 3600 )
            orient -= 3600;
    }

    delta = size.y - size.x ;
    x0    = 0;
    y0    = -delta / 2;
    x1    = 0;
    y1    = delta / 2;
    RotatePoint( &x0, &y0, orient );
    RotatePoint( &x1, &y1, orient );

    if( modetrace == FILLED )
        thick_segment( wxPoint( pos.x + x0, pos.y + y0 ),
            wxPoint( pos.x + x1, pos.y + y1 ), size.x, modetrace );
    else
	sketch_oval(pos, size, orient, -1);
}

/*******************************************************************************/
void PS_PLOTTER::flash_pad_circle(wxPoint pos, int diametre,
	    GRTraceMode modetrace)
/*******************************************************************************/
/* Trace 1 pastille RONDE (via,pad rond) en position pos_X,Y
 */
{
    wxASSERT(output_file);
    if( modetrace == FILLED )
    {
	set_current_line_width( 0 );
	circle(pos, diametre, FILLED_SHAPE);
    }
    else
    {
	set_current_line_width(-1);
	int w = current_pen_width;
	circle(pos, diametre-2*w, NO_FILL);
    }
}

/**************************************************************************/
void PS_PLOTTER::flash_pad_rect(wxPoint pos, wxSize size,
	    int orient, GRTraceMode trace_mode)
/**************************************************************************/
/*
 * Trace 1 pad rectangulaire d'orientation quelconque
 * donne par son centre, ses dimensions,
 * et son orientation orient
 */
{
    wxASSERT(output_file);

    set_current_line_width(-1);
    int w = current_pen_width;
    size.x -= w;
    if( size.x < 1 )
	size.x = 1;
    size.y -= w;
    if( size.y < 1 )
	size.y = 1;

    int dx  = size.x / 2;
    int dy  = size.y / 2;

    int coord[10] = {
	pos.x - dx, pos.y + dy,
	pos.x - dx, pos.y - dy,
	pos.x + dx, pos.y - dy,
	pos.x + dx, pos.y + dy,
	0, 0
    };

    for(int ii = 0; ii < 4; ii++ )
    {
	RotatePoint( &coord[ii*2], &coord[ii*2+1], pos.x, pos.y, orient );
    }
    coord[8] = coord[0];
    coord[9] = coord[1];
    poly(5, coord, trace_mode==FILLED?FILLED_SHAPE:NO_FILL);
}

/*******************************************************************/
void PS_PLOTTER::flash_pad_trapez( wxPoint centre, wxSize size, wxSize delta,
	int orient, GRTraceMode modetrace )
/*******************************************************************/
/*
 * Trace 1 pad trapezoidal donne par :
 * son centre centre
 * ses dimensions size
 * les variations delta ( 1 des deux au moins doit etre nulle)
 * son orientation orient en 0.1 degres
 * le mode de trace (FILLED, SKETCH, FILAIRE)
 *
 * Le trace n'est fait que pour un trapeze, c.a.d que deltaX ou deltaY
 * = 0.
 *
 * les notation des sommets sont ( vis a vis de la table tracante )
 *
 * "       0 ------------- 3   "
 * "        .             .    "
 * "         .     O     .     "
 * "          .         .      "
 * "           1 ---- 2        "
 *
 *
 * exemple de Disposition pour deltaY > 0, deltaX = 0
 * "           1 ---- 2        "
 * "          .         .      "
 * "         .     O     .     "
 * "        .             .    "
 * "       0 ------------- 3   "
 *
 *
 * exemple de Disposition pour deltaY = 0, deltaX > 0
 * "       0                  "
 * "       . .                "
 * "       .     .            "
 * "       .           3      "
 * "       .           .      "
 * "       .     O     .      "
 * "       .           .      "
 * "       .           2      "
 * "       .     .            "
 * "       . .                "
 * "       1                  "
 */
{
    wxASSERT(output_file);
    set_current_line_width(-1);
    int w = current_pen_width;
    int     dx, dy;
    int     ddx, ddy;

    dx  = (size.x-w) / 2;
    dy  = (size.y-w) / 2;
    ddx = delta.x / 2;
    ddy = delta.y / 2;

    int coord[10] = {
	-dx - ddy, +dy + ddx,
	-dx + ddy, -dy - ddx,
	+dx - ddy, -dy + ddx,
	+dx + ddy, +dy - ddx,
	0, 0
    };

    for(int ii = 0; ii < 4; ii++ )
    {
	RotatePoint( &coord[ii*2], &coord[ii*2+1], orient );
        coord[ii*2] += centre.x;
        coord[ii*2+1] += centre.y;
    }
    coord[8] = coord[0];
    coord[9] = coord[1];
    poly(5, coord, modetrace==FILLED?FILLED_SHAPE:NO_FILL);
}