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/*
* "$Id: hpgl-attr.c 4494 2005-02-18 02:18:11Z mike $"
*
* HP-GL/2 attribute processing for the Common UNIX Printing System (CUPS).
*
* Copyright 1993-2005 by Easy Software Products.
*
* These coded instructions, statements, and computer programs are the
* property of Easy Software Products and are protected by Federal
* copyright law. Distribution and use rights are outlined in the file
* "LICENSE.txt" which should have been included with this file. If this
* file is missing or damaged please contact Easy Software Products
* at:
*
* Attn: CUPS Licensing Information
* Easy Software Products
* 44141 Airport View Drive, Suite 204
* Hollywood, Maryland 20636 USA
*
* Voice: (301) 373-9600
* EMail: cups-info@cups.org
* WWW: http://www.cups.org
*
* This file is subject to the Apple OS-Developed Software exception.
*
* Contents:
*
* CR_color_range() - Set the range for color values.
* AC_anchor_corner() - Set the anchor corner.
* FT_fill_type() - Set the fill type or pattern.
* LA_line_attributes() - Set the line drawing attributes.
* LT_line_type() - Set the line type (style)...
* NP_number_pens() - Set the number of pens to be used.
* PC_pen_color() - Set the pen color...
* PW_pen_width() - Set the pen width.
* RF_raster_fill() - Set the raster fill pattern.
* SM_symbol_mode() - Set where symbols are drawn.
* SP_select_pen() - Select a pen for drawing.
* UL_user_line_type() - Set a user-defined line type.
* WU_width_units() - Set the units used for pen widths.
*/
/*
* Include necessary headers...
*/
#include "hpgltops.h"
/*
* 'CR_color_range()' - Set the range for color values.
*/
void
CR_color_range(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
if (num_params == 0)
{
/*
* Default to 0 to 255 for all color values.
*/
ColorRange[0][0] = 0.0;
ColorRange[0][1] = 255.0;
ColorRange[1][0] = 0.0;
ColorRange[1][1] = 255.0;
ColorRange[2][0] = 0.0;
ColorRange[2][1] = 255.0;
}
else if (num_params == 6)
{
/*
* Set the range based on the parameters...
*/
ColorRange[0][0] = params[0].value.number;
ColorRange[0][1] = params[1].value.number - params[0].value.number;
ColorRange[1][0] = params[2].value.number;
ColorRange[1][1] = params[3].value.number - params[2].value.number;
ColorRange[2][0] = params[4].value.number;
ColorRange[2][1] = params[5].value.number - params[4].value.number;
}
else
fprintf(stderr, "WARNING: HP-GL/2 \'CR\' command with invalid number of parameters (%d)!\n",
num_params);
}
/*
* 'AC_anchor_corner()' - Set the anchor corner.
*/
void
AC_anchor_corner(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
(void)num_params;
(void)params;
}
/*
* 'FT_fill_type()' - Set the fill type or pattern.
*
* Note:
*
* This needs to be updated to support non-solid fill.
*/
void
FT_fill_type(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
if (num_params == 0 ||
params[0].value.number == 1 ||
params[0].value.number == 2)
{
/**** SOLID PATTERN ****/
}
}
/*
* 'LA_line_attributes()' - Set the line drawing attributes.
*/
void
LA_line_attributes(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
int i; /* Looping var */
if (num_params == 0)
{
MiterLimit = 3.0f;
LineCap = 0;
LineJoin = 0;
}
else for (i = 0; i < (num_params - 1); i += 2)
switch ((int)params[i].value.number)
{
case 1 :
LineCap = params[i + 1].value.number == 1 ? 0 :
params[i + 1].value.number == 4 ? 1 : 2;
break;
case 2 :
switch ((int)params[i + 1].value.number)
{
case 1 :
case 2 :
case 3 :
LineJoin = 0;
break;
case 5 :
LineJoin = 2;
break;
default :
LineJoin = 1;
break;
}
break;
case 3 :
MiterLimit = 1.0 + 0.5 * (params[i + 1].value.number - 1.0);
break;
}
if (PageDirty)
{
printf("%.1f setmiterlimit\n", MiterLimit);
printf("%d setlinecap\n", LineCap);
printf("%d setlinejoin\n", LineJoin);
}
}
/*
* 'LT_line_type()' - Set the line type (style)...
*
* Note:
*
* This needs to be updated to support line types.
*/
void
LT_line_type(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
(void)num_params;
(void)params;
}
/*
* 'NP_number_pens()' - Set the number of pens to be used.
*/
void
NP_number_pens(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
int i; /* Looping var */
if (num_params == 0)
PenCount = 8;
else if (num_params == 1 && params[0].value.number <= 1024)
PenCount = (int)params[0].value.number;
else
fprintf(stderr, "WARNING: HP-GL/2 \'NP\' command with invalid number of parameters (%d)!\n",
num_params);
for (i = 0; i <= PenCount; i ++)
Pens[i].width = PenWidth;
PC_pen_color(0, NULL);
}
/*
* 'PC_pen_color()' - Set the pen color...
*/
void
PC_pen_color(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
int i; /* Looping var */
static float standard_colors[8][3] = /* Standard colors for first 8 pens */
{
{ 1.0, 1.0, 1.0 }, /* White */
{ 0.0, 0.0, 0.0 }, /* Black */
{ 1.0, 0.0, 0.0 }, /* Red */
{ 0.0, 1.0, 0.0 }, /* Green */
{ 1.0, 1.0, 0.0 }, /* Yellow */
{ 0.0, 0.0, 1.0 }, /* Blue */
{ 1.0, 0.0, 1.0 }, /* Magenta */
{ 0.0, 1.0, 1.0 } /* Cyan */
};
if (num_params == 0)
{
for (i = 0; i <= PenCount; i ++)
if (i < 8)
{
Pens[i].rgb[0] = standard_colors[i][0];
Pens[i].rgb[1] = standard_colors[i][1];
Pens[i].rgb[2] = standard_colors[i][2];
}
else
{
Pens[i].rgb[0] = 0.0f;
Pens[i].rgb[1] = 0.0f;
Pens[i].rgb[2] = 0.0f;
}
if (PageDirty)
printf("%.3f %.3f %.3f %.2f SP\n", Pens[PenNumber].rgb[0],
Pens[PenNumber].rgb[1], Pens[PenNumber].rgb[2],
Pens[PenNumber].width * PenScaling);
}
else if (num_params == 1 || num_params == 4)
{
i = (int)params[0].value.number;
if (num_params == 1)
{
Pens[i].rgb[0] = standard_colors[i & 7][0];
Pens[i].rgb[1] = standard_colors[i & 7][1];
Pens[i].rgb[2] = standard_colors[i & 7][2];
}
else
{
Pens[i].rgb[0] = (params[1].value.number - ColorRange[0][0]) /
(ColorRange[0][1] - ColorRange[0][0]);
Pens[i].rgb[1] = (params[2].value.number - ColorRange[1][0]) /
(ColorRange[1][1] - ColorRange[1][0]);
Pens[i].rgb[2] = (params[3].value.number - ColorRange[2][0]) /
(ColorRange[2][1] - ColorRange[2][0]);
fprintf(stderr, "DEBUG: Pen %d %.0f %.0f %.0f = %.3f %.3f %.3f\n",
i, params[1].value.number, params[2].value.number,
params[3].value.number, Pens[i].rgb[0], Pens[i].rgb[1],
Pens[i].rgb[2]);
}
if (PageDirty && i == PenNumber)
printf("%.3f %.3f %.3f %.2f SP\n", Pens[PenNumber].rgb[0],
Pens[PenNumber].rgb[1], Pens[PenNumber].rgb[2],
Pens[PenNumber].width * PenScaling);
}
else
fprintf(stderr, "WARNING: HP-GL/2 \'PC\' command with invalid number of parameters (%d)!\n",
num_params);
}
/*
* 'PW_pen_width()' - Set the pen width.
*/
void
PW_pen_width(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
int pen; /* Pen number */
float w; /* Width value */
if (WidthUnits == 0)
{
/*
* Metric...
*/
if (num_params == 0)
w = 0.35f / 25.4f * 72.0f;
else
w = params[0].value.number / 25.4f * 72.0f;
}
else
{
/*
* Relative...
*/
w = (float)hypot(PlotSize[0], PlotSize[1]) / 1016.0f * 72.0f;
if (num_params == 0)
w *= 0.01f;
else
w *= params[0].value.number;
}
if (num_params == 2)
{
pen = (int)params[1].value.number;
Pens[pen].width = w;
if (PageDirty && pen == PenNumber)
printf("%.3f %.3f %.3f %.2f SP\n", Pens[PenNumber].rgb[0],
Pens[PenNumber].rgb[1], Pens[PenNumber].rgb[2],
Pens[PenNumber].width * PenScaling);
}
else if (num_params < 2)
{
/*
* Set width for all pens...
*/
for (pen = 0; pen <= PenCount; pen ++)
Pens[pen].width = w;
if (PageDirty)
printf("%.3f %.3f %.3f %.2f SP\n", Pens[PenNumber].rgb[0],
Pens[PenNumber].rgb[1], Pens[PenNumber].rgb[2],
Pens[PenNumber].width * PenScaling);
}
else
fprintf(stderr, "WARNING: HP-GL/2 \'PW\' command with invalid number of parameters (%d)!\n",
num_params);
}
/*
* 'RF_raster_fill()' - Set the raster fill pattern.
*
* Note:
*
* This needs to be implemented.
*/
void
RF_raster_fill(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
(void)num_params;
(void)params;
}
/*
* 'SM_symbol_mode()' - Set where symbols are drawn.
*/
void
SM_symbol_mode(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
(void)num_params;
(void)params;
}
/*
* 'SP_select_pen()' - Select a pen for drawing.
*/
void
SP_select_pen(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
if (num_params == 0)
PenNumber = 1;
else if (params[0].value.number <= PenCount)
PenNumber = (int)params[0].value.number;
else
fprintf(stderr, "WARNING: HP-GL/2 \'SP\' command with invalid number or value of parameters (%d, %d)!\n",
num_params, (int)params[0].value.number);
if (PageDirty)
printf("%.3f %.3f %.3f %.2f SP\n", Pens[PenNumber].rgb[0],
Pens[PenNumber].rgb[1], Pens[PenNumber].rgb[2],
Pens[PenNumber].width * PenScaling);
}
/*
* 'UL_user_line_type()' - Set a user-defined line type.
*/
void
UL_user_line_type(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
(void)num_params;
(void)params;
}
/*
* 'WU_width_units()' - Set the units used for pen widths.
*/
void
WU_width_units(int num_params, /* I - Number of parameters */
param_t *params) /* I - Parameters */
{
if (num_params == 0)
WidthUnits = 0;
else if (num_params == 1)
WidthUnits = (int)params[0].value.number;
else
fprintf(stderr, "WARNING: HP-GL/2 \'WU\' command with invalid number of parameters (%d)!\n",
num_params);
}
/*
* End of "$Id: hpgl-attr.c 4494 2005-02-18 02:18:11Z mike $".
*/
|
