#define __SP_PS_C__

#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include <signal.h>

#include <errno.h>

#include <libnr/n-art-bpath.h>

#include <libnr/nr-matrix-fns.h>

#include <glib/gmem.h>

#include <glib/gstrfuncs.h>

#include <gtk/gtkstock.h>

#include <gtk/gtkvbox.h>

#include <gtk/gtkframe.h>

#include <gtk/gtkradiobutton.h>

#include <gtk/gtkcombo.h>

#include <gtk/gtklabel.h>

#include <gtk/gtkentry.h>

#include <gtk/gtktooltips.h>

#include <glibmm/i18n.h>

#include "display/nr-arena-item.h"

#include "display/canvas-bpath.h"

#include "sp-item.h"

#include "style.h"

#include "sp-linear-gradient.h"

#include "sp-radial-gradient.h"

#include "libnrtype/font-instance.h"

#include "libnrtype/font-style-to-pos.h"

#include <unit-constants.h>

#include "ps.h"

#include "extension/system.h"

#include "extension/print.h"

#include "io/sys.h"

#include <ft2build.h>

#include FT_FREETYPE_H

#include FT_XFREE86_H

#include <pango/pangoft2.h>

#include <string>

#include <iostream>

#include <fstream>

#include <cstring>

#include <cstdio>

#include <cstdlib>

#include <cmath>

using namespace std;

namespace Inkscape {

namespace Extension {

namespace Internal {

PrintPS::PrintPS() :

_stream(NULL),

_dpi(72),

_bitmap(false)

{

//map font types

_fontTypesMap["Type 1"] = FONT_TYPE1;

_fontTypesMap["TrueType"] = FONT_TRUETYPE;

//TODO: support other font types (cf. embed_font())

}

PrintPS::~PrintPS(void)

{

/* fixme: should really use pclose for popen'd streams */

if (_stream) fclose(_stream);

if(_begin_stream) fclose(_begin_stream);

if(_fonts) g_tree_destroy(_fonts);

/* restore default signal handling for SIGPIPE */

#if !defined(_WIN32) && !defined(__WIN32__)

(void) signal(SIGPIPE, SIG_DFL);

#endif

return;

}

unsigned int

PrintPS::setup(Inkscape::Extension::Print * mod)

{

static gchar const *const pdr[] = {"72", "75", "100", "144", "150", "200", "300", "360", "600", "1200", "2400", NULL};

#ifdef TED

Inkscape::XML::Node *repr = ((SPModule *) mod)->repr;

#endif

unsigned int ret = FALSE;

gchar const *destination = mod->get_param_string("destination");

/* Create dialog */

GtkTooltips *tt = gtk_tooltips_new();

g_object_ref((GObject *) tt);

gtk_object_sink((GtkObject *) tt);

GtkWidget *dlg = gtk_dialog_new_with_buttons(

destination ? _("Print Configuration") : _("Print Destination"),

NULL,

(GtkDialogFlags) (GTK_DIALOG_MODAL | GTK_DIALOG_NO_SEPARATOR | GTK_DIALOG_DESTROY_WITH_PARENT),

GTK_STOCK_CANCEL,

GTK_RESPONSE_CANCEL,

destination ? GTK_STOCK_GO_FORWARD : GTK_STOCK_PRINT,

GTK_RESPONSE_OK,

NULL);

gtk_dialog_set_default_response(GTK_DIALOG(dlg), GTK_RESPONSE_OK);

GtkWidget *vbox = GTK_DIALOG(dlg)->vbox;

gtk_container_set_border_width(GTK_CONTAINER(vbox), 4);

/* Print properties frame */

GtkWidget *f = gtk_frame_new(_("Print properties"));

gtk_box_pack_start(GTK_BOX(vbox), f, FALSE, FALSE, 4);

GtkWidget *vb = gtk_vbox_new(FALSE, 4);

gtk_container_add(GTK_CONTAINER(f), vb);

gtk_container_set_border_width(GTK_CONTAINER(vb), 4);

/* Print type */

bool const p2bm = mod->get_param_bool("bitmap");

GtkWidget *rb = gtk_radio_button_new_with_label(NULL, _("Print using PostScript operators"));

gtk_tooltips_set_tip((GtkTooltips *) tt, rb,

_("Use PostScript vector operators. The resulting image is usually smaller "

"in file size and can be arbitrarily scaled, but alpha transparency "

"and patterns will be lost."), NULL);

if (!p2bm) gtk_toggle_button_set_active((GtkToggleButton *) rb, TRUE);

gtk_box_pack_start(GTK_BOX(vb), rb, FALSE, FALSE, 0);

rb = gtk_radio_button_new_with_label(gtk_radio_button_get_group((GtkRadioButton *) rb), _("Print as bitmap"));

gtk_tooltips_set_tip((GtkTooltips *) tt, rb,

_("Print everything as bitmap. The resulting image is usually larger "

"in file size and cannot be arbitrarily scaled without quality loss, "

"but all objects will be rendered exactly as displayed."), NULL);

if (p2bm) gtk_toggle_button_set_active((GtkToggleButton *) rb, TRUE);

gtk_box_pack_start(GTK_BOX(vb), rb, FALSE, FALSE, 0);

/* Resolution */

GtkWidget *hb = gtk_hbox_new(FALSE, 4);

gtk_box_pack_start(GTK_BOX(vb), hb, FALSE, FALSE, 0);

GtkWidget *combo = gtk_combo_new();

gtk_combo_set_value_in_list(GTK_COMBO(combo), FALSE, FALSE);

gtk_combo_set_use_arrows(GTK_COMBO(combo), TRUE);

gtk_combo_set_use_arrows_always(GTK_COMBO(combo), TRUE);

gtk_widget_set_size_request(combo, 64, -1);

gtk_tooltips_set_tip((GtkTooltips *) tt, GTK_COMBO(combo)->entry,

_("Preferred resolution (dots per inch) of bitmap"), NULL);

/* Setup strings */

GList *sl = NULL;

for (unsigned i = 0; pdr[i] != NULL; i++) {

sl = g_list_prepend(sl, (gpointer) pdr[i]);

}

sl = g_list_reverse(sl);

gtk_combo_set_popdown_strings(GTK_COMBO(combo), sl);

g_list_free(sl);

if (1) {

gchar const *val = mod->get_param_string("resolution");

gtk_entry_set_text(GTK_ENTRY(GTK_COMBO(combo)->entry), val);

}

gtk_box_pack_end(GTK_BOX(hb), combo, FALSE, FALSE, 0);

GtkWidget *l = gtk_label_new(_("Resolution:"));

gtk_box_pack_end(GTK_BOX(hb), l, FALSE, FALSE, 0);

GtkWidget *e = NULL;

/* if the destination isn't already set, we must prompt for it */

if (!destination) {

/* Print destination frame */

f = gtk_frame_new(_("Print destination"));

gtk_box_pack_start(GTK_BOX(vbox), f, FALSE, FALSE, 4);

vb = gtk_vbox_new(FALSE, 4);

gtk_container_add(GTK_CONTAINER(f), vb);

gtk_container_set_border_width(GTK_CONTAINER(vb), 4);

l = gtk_label_new(_("Printer name (as given by lpstat -p);\n"

"leave empty to use the system default printer.\n"

"Use '> filename' to print to file.\n"

"Use '| prog arg...' to pipe to a program."));

gtk_box_pack_start(GTK_BOX(vb), l, FALSE, FALSE, 0);

e = gtk_entry_new();

gtk_entry_set_text(GTK_ENTRY(e), ( destination != NULL

? destination

: "" ));

gtk_box_pack_start(GTK_BOX(vb), e, FALSE, FALSE, 0);

// pressing enter in the destination field is the same as clicking Print:

gtk_entry_set_activates_default(GTK_ENTRY(e), TRUE);

}

gtk_widget_show_all(vbox);

int const response = gtk_dialog_run(GTK_DIALOG(dlg));

g_object_unref((GObject *) tt);

if (response == GTK_RESPONSE_OK) {

gchar const *fn;

char const *sstr;

_bitmap = gtk_toggle_button_get_active((GtkToggleButton *) rb);

sstr = gtk_entry_get_text(GTK_ENTRY(GTK_COMBO(combo)->entry));

_dpi = (unsigned int) MAX((int)(atof(sstr)), 1);

/* if the destination was prompted for, record the new value */

if (e) {

/* Arrgh, have to do something */

fn = gtk_entry_get_text(GTK_ENTRY(e));

/* skip leading whitespace, bug #1068483 */

while (fn && *fn==' ') { fn++; }

/* g_print("Printing to %s\n", fn); */

mod->set_param_string("destination", (gchar *)fn);

}

mod->set_param_bool("bitmap", _bitmap);

mod->set_param_string("resolution", (gchar *)sstr);

ret = TRUE;

}

gtk_widget_destroy(dlg);

return ret;

}

unsigned int

PrintPS::begin(Inkscape::Extension::Print *mod, SPDocument *doc)

{

gboolean epsexport = false;

_latin1_encoded_fonts.clear();

_newlatin1font_proc_defined = false;

FILE *osf = NULL;

FILE *osp = NULL;

FILE *osf_tmp = NULL;

gsize bytesRead = 0;

gsize bytesWritten = 0;

GError *error = NULL;

//check whether fonts have to be embedded in the (EPS only) output

bool font_embedded = mod->fontEmbedded();

gchar const *utf8_fn = mod->get_param_string("destination");

gchar *local_fn = g_filename_from_utf8( utf8_fn,

-1, &bytesRead, &bytesWritten, &error);

gchar const *fn = local_fn;

/* TODO: Replace the below fprintf's with something that does the right thing whether in

if (fn != NULL) {

if (*fn == '|') {

fn += 1;

while (g_ascii_isspace(*fn)) fn += 1;

#ifndef WIN32

osp = popen(fn, "w");

#else

osp = _popen(fn, "w");

#endif

if (!osp) {

fprintf(stderr, "inkscape: popen(%s): %s\n",

fn, strerror(errno));

return 0;

}

_stream = _begin_stream = osp;

} else if (*fn == '>') {

fn += 1;

epsexport = g_str_has_suffix(fn,".eps");

while (isspace(*fn)) fn += 1;

Inkscape::IO::dump_fopen_call(fn, "K");

osf = Inkscape::IO::fopen_utf8name(fn, "w+");

if (!osf) {

fprintf(stderr, "inkscape: fopen(%s): %s\n",

fn, strerror(errno));

return 0;

}

_begin_stream = osf;

/* if font embedding is requested for EPS export...

if(font_embedded && epsexport)

{

/**

osf_tmp = tmpfile();

if(!osf_tmp)

{

g_warning("Could not create a temporary file for font embedding. Font embedding canceled.");

mod->set_param_bool("fontEmbedded", false);

font_embedded = false;

_stream = osf;

} else _stream = osf_tmp;

} else _stream = osf;

} else {

/* put cwd stuff in here */

gchar *qn = ( *fn

? g_strdup_printf("lpr -P %s", fn) /* FIXME: quote fn */

: g_strdup("lpr") );

#ifndef WIN32

osp = popen(qn, "w");

#else

osp = _popen(qn, "w");

#endif

if (!osp) {

fprintf(stderr, "inkscape: popen(%s): %s\n",

qn, strerror(errno));

return 0;

}

g_free(qn);

_stream = _begin_stream = osp;

}

}

g_free(local_fn);

if (_stream) {

/* fixme: this is kinda icky */

#if !defined(_WIN32) && !defined(__WIN32__)

(void) signal(SIGPIPE, SIG_IGN);

#endif

}

int const res = fprintf(_begin_stream, ( epsexport

? "%%!PS-Adobe-3.0 EPSF-3.0\n"

: "%%!PS-Adobe-3.0\n" ));

/* flush this to test output stream as early as possible */

if (fflush(_begin_stream)) {

/*g_print("caught error in sp_module_print_plain_begin\n");*/

if (ferror(_begin_stream)) {

g_print("Error %d on output stream: %s\n", errno,

g_strerror(errno));

}

g_print("Printing failed\n");

/* fixme: should use pclose() for pipes */

fclose(_begin_stream);

_begin_stream = NULL;

fflush(stdout);

return 0;

}

//TODO: do this same test on _stream

// width and height in pt

_width = sp_document_width(doc) * PT_PER_PX;

_height = sp_document_height(doc) * PT_PER_PX;

NRRect d;

bool pageBoundingBox;

bool pageLandscape;

pageBoundingBox = mod->get_param_bool("pageBoundingBox");

// printf("Page Bounding Box: %s\n", pageBoundingBox ? "TRUE" : "FALSE");

if (pageBoundingBox) {

d.x0 = d.y0 = 0;

d.x1 = ceil(_width);

d.y1 = ceil(_height);

} else {

SPItem* doc_item = SP_ITEM(sp_document_root(doc));

sp_item_invoke_bbox(doc_item, &d, sp_item_i2r_affine(doc_item), TRUE);

// convert from px to pt

d.x0 *= PT_PER_PX;

d.x1 *= PT_PER_PX;

d.y0 *= PT_PER_PX;

d.y1 *= PT_PER_PX;

}

Inkscape::SVGOStringStream os;

if (res >= 0) {

os << "%%Creator: " << PACKAGE_STRING << "\n";

// This will become problematic if inkscape gains the

// ability to handle multi paged documents. If this is

// the case the %%Orientation: comments should be

// renamed to %%PageOrientation: and moved to the

// respective pages.

os << "%%Pages: 1\n";

// 2004 Dec 10, BFC:

// The point of the following code is (1) to do the thing that's expected by users

// who have done File>New>A4_landscape or ...letter_landscape (i.e., rotate

// the output), while (2) not messing up users who simply want their output wider

// than it is tall (e.g., small figures for inclusion in LaTeX).

// The original patch by WQ only had the w>h condition.

{

double w = (d.x1 - d.x0); // width and height of bounding box, in pt

double h = (d.y1 - d.y0);

pageLandscape = (

(w > 0. && h > 0.) // empty documents fail this sanity check, have w<0, h<0

&& (w > h) // implies, but does not prove, the user wanted landscape

&& (w > 600) // approximate maximum printable width of an A4

&& (!epsexport) // eps should always be portrait

)

? true : false;

}

if (pageLandscape) {

os << "%%Orientation: Landscape\n";

os << "%%BoundingBox: " << (int) (_height - d.y1) << " "

<< (int) d.x0 << " "

<< (int) ceil(_height - d.y0) << " "

<< (int) ceil(d.x1) << "\n";

// According to Mike Sweet (the author of CUPS)

// HiResBoundingBox is only appropriate

// for EPS files. This means that we should

// distinguish if we export to ps or eps here.

// FIXME: I couldn't find HiResBoundingBox in the PS

// reference manual, so I guess we should skip

// it.

os << "%%HiResBoundingBox: " << (_height - d.y1) << " "

<< d.x0 << " "

<< (_height - d.y0) << " "

<< d.x1 << "\n";

if (!epsexport) {

os << "%%DocumentMedia: plain "

<< (int) ceil(_height) << " "

<< (int) ceil(_width) << " "

<< "0 () ()\n";

}

} else {

os << "%%Orientation: Portrait\n";

os << "%%BoundingBox: " << (int) d.x0 << " "

<< (int) d.y0 << " "

<< (int) ceil(d.x1) << " "

<< (int) ceil(d.y1) << "\n";

os << "%%HiResBoundingBox: " << d.x0 << " "

<< d.y0 << " "

<< d.x1 << " "

<< d.y1 << "\n";

if (!epsexport) {

os << "%%DocumentMedia: plain "

<< (int) ceil(_width) << " "

<< (int) ceil(_height) << " "

<< "0 () ()\n";

}

}

os << "%%EndComments\n";

/* If font embedding requested, begin document setup section where to include font resources */

if(font_embedded) os << "%%BeginSetup\n";/* Resume it later with Begin(End)Resource sections for font embedding. So, for now, we are done with the prolog/setup part. */

gint ret = fprintf(_begin_stream, "%s", os.str().c_str());

if(ret < 0) return ret;

/* Main Script part (after document setup) begins */

/* Empty os from all previous printing */

std::string clrstr = "";

os.str(clrstr);

// This will become problematic if we print multi paged documents:

os << "%%Page: 1 1\n";

if (pageLandscape) {

os << "90 rotate\n";

if (_bitmap) {

os << "0 " << (int) -ceil(_height) << " translate\n";

}

} else {

if (!_bitmap) {

os << "0 " << (int) ceil(_height) << " translate\n";

}

}

if (!_bitmap) {

os << PT_PER_PX << " " << -PT_PER_PX << " scale\n";

// from now on we can output px, but they will be treated as pt

}

/* As a new PS document is created, _fontlist has to be reinitialized (unref fonts from possible former PS docs) */

_fonts = g_tree_new_full((GCompareDataFunc)strcmp, NULL, (GDestroyNotify)g_free, (GDestroyNotify)g_free);

}

os << "0 0 0 setrgbcolor\n"

<< "[] 0 setdash\n"

<< "1 setlinewidth\n"

<< "0 setlinejoin\n"

<< "0 setlinecap\n";

/* FIXME: This function is declared to return unsigned, whereas fprintf returns a signed int *

return fprintf(_stream, "%s", os.str().c_str());

}

unsigned int

PrintPS::finish(Inkscape::Extension::Print *mod)

{

if (!_stream) return 0;

if (_bitmap) {

double const dots_per_pt = _dpi / PT_PER_IN;

double const x0 = 0.0;

double const y0 = 0.0;

double const x1 = x0 + _width;

double const y1 = y0 + _height;

/* Bitmap width/height in bitmap dots. */

int const width = (int) (_width * dots_per_pt + 0.5);

int const height = (int) (_height * dots_per_pt + 0.5);

NR::Matrix affine;

affine[0] = width / ((x1 - x0) * PX_PER_PT);

affine[1] = 0.0;

affine[2] = 0.0;

affine[3] = height / ((y1 - y0) * PX_PER_PT);

affine[4] = -affine[0] * x0;

affine[5] = -affine[3] * y0;

nr_arena_item_set_transform(mod->root, &affine);

guchar *const px = g_new(guchar, 4 * width * 64);

for (int y = 0; y < height; y += 64) {

/* Set area of interest. */

NRRectL bbox;

bbox.x0 = 0;

bbox.y0 = y;

bbox.x1 = width;

bbox.y1 = MIN(height, y + 64);

/* Update to renderable state. */

NRGC gc(NULL);

gc.transform.set_identity();

nr_arena_item_invoke_update(mod->root, &bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);

/* Render */

/* This should take guchar* instead of unsigned char*) */

NRPixBlock pb;

nr_pixblock_setup_extern(&pb, NR_PIXBLOCK_MODE_R8G8B8A8N,

bbox.x0, bbox.y0, bbox.x1, bbox.y1,

(guchar*)px, 4 * width, FALSE, FALSE);

memset(px, 0xff, 4 * width * 64);

nr_arena_item_invoke_render(NULL, mod->root, &bbox, &pb, 0);

/* Blitter goes here */

NR::Matrix imgt;

imgt[0] = (bbox.x1 - bbox.x0) / dots_per_pt;

imgt[1] = 0.0;

imgt[2] = 0.0;

imgt[3] = (bbox.y1 - bbox.y0) / dots_per_pt;

imgt[4] = 0.0;

imgt[5] = _height - y / dots_per_pt - (bbox.y1 - bbox.y0) / dots_per_pt;

print_image(_stream, px, bbox.x1 - bbox.x0, bbox.y1 - bbox.y0, 4 * width, &imgt);

}

g_free(px);

}

fprintf(_stream, "showpage\n");

int const res = fprintf(_stream, "%%%%EOF\n");

/* Flush stream to be sure. */

(void) fflush(_stream);

char c;

/* If font embedding... */

if(mod->get_param_bool("fontEmbedded"))

{

/* Close the document setup section that had been started (because all the needed resources are supposed to be included now) */

/*res = */fprintf(_begin_stream, "%s", "%%EndSetup\n");

/* If font embedding requested, the following PS script part was printed to a different file from the prolog/setup, so script part (current _stream) needs to be copied to prolog/setup file to get the complete (E)PS document */

if(fseek(_stream, 0, SEEK_SET) == 0)

{

while((c = fgetc(_stream))!=EOF) fputc(c, _begin_stream);

}

fclose(_stream);

_stream = _begin_stream;

}

/* fixme: should really use pclose for popen'd streams */

fclose(_stream);

_stream = NULL;

_latin1_encoded_fonts.clear();

g_tree_destroy(_fonts);

return res;

}

unsigned int

PrintPS::bind(Inkscape::Extension::Print */*mod*/, NR::Matrix const *transform, float /*opacity*/)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

Inkscape::SVGOStringStream os;

os << "gsave [" << (*transform)[0] << " "

<< (*transform)[1] << " "

<< (*transform)[2] << " "

<< (*transform)[3] << " "

<< (*transform)[4] << " "

<< (*transform)[5] << "] concat\n";

return fprintf(_stream, "%s", os.str().c_str());

}

unsigned int

PrintPS::release(Inkscape::Extension::Print */*mod*/)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

return fprintf(_stream, "grestore\n");

}

unsigned int

PrintPS::comment(Inkscape::Extension::Print */*mod*/, char const *comment)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

return fprintf(_stream, "%%! %s\n",comment);

}

PrintPS::print_fill_style(SVGOStringStream &os, SPStyle const *const style, NRRect const *pbox)

{

g_return_if_fail( style->fill.isColor()

|| ( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) ) );

if (style->fill.isColor()) {

float rgb[3];

sp_color_get_rgb_floatv(&style->fill.value.color, rgb);

os << rgb[0] << " " << rgb[1] << " " << rgb[2] << " setrgbcolor\n";

} else {

g_assert( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) );

if (SP_IS_LINEARGRADIENT(SP_STYLE_FILL_SERVER(style))) {

SPLinearGradient *lg = SP_LINEARGRADIENT(SP_STYLE_FILL_SERVER(style));

NR::Point p1 (lg->x1.computed, lg->y1.computed);

NR::Point p2 (lg->x2.computed, lg->y2.computed);

if (pbox && SP_GRADIENT(lg)->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {

// convert to userspace

NR::Matrix bbox2user(pbox->x1 - pbox->x0, 0, 0, pbox->y1 - pbox->y0, pbox->x0, pbox->y0);

p1 *= bbox2user;

p2 *= bbox2user;

}

os << "<<\n/ShadingType 2\n/ColorSpace /DeviceRGB\n";

os << "/Coords [" << p1[NR::X] << " " << p1[NR::Y] << " " << p2[NR::X] << " " << p2[NR::Y] <<"]\n";

os << "/Extend [true true]\n";

os << "/Domain [0 1]\n";

os << "/Function <<\n/FunctionType 3\n/Functions\n[\n";

sp_gradient_ensure_vector(SP_GRADIENT(lg)); // when exporting from commandline, vector is not built

for (unsigned i = 0; i + 1 < lg->vector.stops.size(); i++) {

float rgb[3];

sp_color_get_rgb_floatv(&lg->vector.stops[i].color, rgb);

os << "<<\n/FunctionType 2\n/Domain [0 1]\n";

os << "/C0 [" << rgb[0] << " " << rgb[1] << " " << rgb[2] << "]\n";

sp_color_get_rgb_floatv(&lg->vector.stops[i+1].color, rgb);

os << "/C1 [" << rgb[0] << " " << rgb[1] << " " << rgb[2] << "]\n";

os << "/N 1\n>>\n";

}

os << "]\n/Domain [0 1]\n";

os << "/Bounds [ ";

for (unsigned i = 0; i + 2 < lg->vector.stops.size(); i++) {

os << lg->vector.stops[i+1].offset <<" ";

}

os << "]\n";

os << "/Encode [ ";

for (unsigned i = 0; i + 1 < lg->vector.stops.size(); i++) {

os << "0 1 ";

}

os << "]\n";

os << ">>\n>>\n";

} else if (SP_IS_RADIALGRADIENT(SP_STYLE_FILL_SERVER(style))) {

SPRadialGradient *rg = SP_RADIALGRADIENT(SP_STYLE_FILL_SERVER(style));

NR::Point c(rg->cx.computed, rg->cy.computed);

NR::Point f(rg->fx.computed, rg->fy.computed);

double r = rg->r.computed;

if (pbox && SP_GRADIENT(rg)->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {

// convert to userspace

NR::Matrix const bbox2user(pbox->x1 - pbox->x0, 0,

0, pbox->y1 - pbox->y0,

pbox->x0, pbox->y0);

c *= bbox2user;

f *= bbox2user;

r *= NR::expansion(bbox2user);

}

os << "<<\n/ShadingType 3\n/ColorSpace /DeviceRGB\n";

os << "/Coords ["<< f[NR::X] <<" "<< f[NR::Y] <<" 0 "<< c[NR::X] <<" "<< c[NR::Y] <<" "<< r <<"]\n";

os << "/Extend [true true]\n";

os << "/Domain [0 1]\n";

os << "/Function <<\n/FunctionType 3\n/Functions\n[\n";

sp_gradient_ensure_vector(SP_GRADIENT(rg)); // when exporting from commandline, vector is not built

for (unsigned i = 0; i + 1 < rg->vector.stops.size(); i++) {

float rgb[3];

sp_color_get_rgb_floatv(&rg->vector.stops[i].color, rgb);

os << "<<\n/FunctionType 2\n/Domain [0 1]\n";

os << "/C0 [" << rgb[0] << " " << rgb[1] << " " << rgb[2] << "]\n";

sp_color_get_rgb_floatv(&rg->vector.stops[i+1].color, rgb);

os << "/C1 [" << rgb[0] << " " << rgb[1] << " " << rgb[2] << "]\n";

os << "/N 1\n>>\n";

}

os << "]\n/Domain [0 1]\n";

os << "/Bounds [ ";

for (unsigned i = 0; i + 2 < rg->vector.stops.size(); i++) {

os << rg->vector.stops[i+1].offset << " ";

}

os << "]\n";

os << "/Encode [ ";

for (unsigned i = 0; i + 1 < rg->vector.stops.size(); i++) {

os << "0 1 ";

}

os << "]\n";

os << ">>\n>>\n";

}

}

}

PrintPS::print_stroke_style(SVGOStringStream &os, SPStyle const *style)

{

float rgb[3];

sp_color_get_rgb_floatv(&style->stroke.value.color, rgb);

os << rgb[0] << " " << rgb[1] << " " << rgb[2] << " setrgbcolor\n";

// There are rare cases in which for a solid line stroke_dasharray_set is true. To avoid

// invalid PS-lines such as "[0.0000000 0.0000000] 0.0000000 setdash", which should be "[] 0 setdash",

// we first check if all components of stroke_dash.dash are 0.

bool LineSolid = true;

if (style->stroke_dash.n_dash &&

style->stroke_dash.dash )

{

int i = 0;

while (LineSolid && (i < style->stroke_dash.n_dash)) {

if (style->stroke_dash.dash[i] > 0.00000001)

LineSolid = false;

i++;

}

if (!LineSolid) {

os << "[";

for (i = 0; i < style->stroke_dash.n_dash; i++) {

if (i > 0) {

os << " ";

}

os << style->stroke_dash.dash[i];

}

os << "] " << style->stroke_dash.offset << " setdash\n";

} else {

os << "[] 0 setdash\n";

}

} else {

os << "[] 0 setdash\n";

}

os << style->stroke_width.computed << " setlinewidth\n";

os << style->stroke_linejoin.computed << " setlinejoin\n";

os << style->stroke_linecap.computed << " setlinecap\n";

}

unsigned int

PrintPS::fill(Inkscape::Extension::Print *mod, NRBPath const *bpath, NR::Matrix const *ctm, SPStyle const *const style,

NRRect const *pbox, NRRect const *dbox, NRRect const *bbox)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

if ( style->fill.isColor()

|| ( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) ) )

{

Inkscape::SVGOStringStream os;

os << "gsave\n";

print_fill_style(os, style, pbox);

print_bpath(os, bpath->path);

if (style->fill_rule.computed == SP_WIND_RULE_EVENODD) {

if (style->fill.isColor()) {

os << "eofill\n";

} else {

g_assert( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) );

SPGradient const *g = SP_GRADIENT(SP_STYLE_FILL_SERVER(style));

os << "eoclip\n";

if (g->gradientTransform_set) {

os << "gsave [" << g->gradientTransform[0] << " " << g->gradientTransform[1]

<< " " << g->gradientTransform[2] << " " << g->gradientTransform[3]

<< " " << g->gradientTransform[4] << " " << g->gradientTransform[5] << "] concat\n";

}

os << "shfill\n";

if (g->gradientTransform_set) {

os << "grestore\n";

}

}

} else {

if (style->fill.isColor()) {

os << "fill\n";

} else {

g_assert( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) );

SPGradient const *g = SP_GRADIENT(SP_STYLE_FILL_SERVER(style));

os << "clip\n";

if (g->gradientTransform_set) {

os << "gsave [" << g->gradientTransform[0] << " " << g->gradientTransform[1]

<< " " << g->gradientTransform[2] << " " << g->gradientTransform[3]

<< " " << g->gradientTransform[4] << " " << g->gradientTransform[5] << "] concat\n";

}

os << "shfill\n";

if (g->gradientTransform_set) {

os << "grestore\n";

}

}

}

os << "grestore\n";

fprintf(_stream, "%s", os.str().c_str());

}

return 0;

}

unsigned int

PrintPS::stroke(Inkscape::Extension::Print *mod, NRBPath const *bpath, NR::Matrix const *ctm, SPStyle const *style,

NRRect const *pbox, NRRect const *dbox, NRRect const *bbox)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

if (style->stroke.isColor()) {

Inkscape::SVGOStringStream os;

print_stroke_style(os, style);

print_bpath(os, bpath->path);

os << "stroke\n";

fprintf(_stream, "%s", os.str().c_str());

}

return 0;

}

unsigned int

PrintPS::image(Inkscape::Extension::Print *mod, guchar *px, unsigned int w, unsigned int h, unsigned int rs,

NR::Matrix const *transform, SPStyle const *style)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

return print_image(_stream, px, w, h, rs, transform);

}

char const *

PrintPS::PSFontName(SPStyle const *style)

{

font_instance *tf = font_factory::Default()->FaceFromStyle(style);

char const *n;

char name_buf[256];

// PS does not like spaces in fontnames, replace them with the usual dashes.

if (tf) {

tf->PSName(name_buf, sizeof(name_buf));

n = g_strdelimit(name_buf, " ", '-');

tf->Unref();

} else {

// this system does not have this font, so just use the name from SVG in the hope that PS interpreter will make sense of it

bool i = (style->font_style.value == SP_CSS_FONT_STYLE_ITALIC);

bool o = (style->font_style.value == SP_CSS_FONT_STYLE_OBLIQUE);

bool b = (style->font_weight.value == SP_CSS_FONT_WEIGHT_BOLD) ||

(style->font_weight.value >= SP_CSS_FONT_WEIGHT_500 && style->font_weight.value <= SP_CSS_FONT_WEIGHT_900);

n = g_strdup_printf("%s%s%s%s",

g_strdelimit(style->text->font_family.value, " ", '-'),

(b || i || o) ? "-" : "",

(b) ? "Bold" : "",

(i) ? "Italic" : ((o) ? "Oblique" : "") );

}

return g_strdup(n);

}

#define INT32_LSB_2_5(q) ((q)[2] + ((q)[3] << 8) + ((q)[4] << 16) + ((q)[5] << 24))

PrintPS::embed_t1 (SVGOStringStream &os, font_instance* font)

{

//check font type

FT_Face font_face = pango_ft2_font_get_face(font->pFont);

const FT_String* font_type = FT_Get_X11_Font_Format(font_face);

g_return_val_if_fail (_fontTypesMap[font_type] == FONT_TYPE1, false);

//get font filename, stream to font file and size

FT_Stream font_stream = font_face->stream;

const char* font_filename = (char*) font_stream->pathname.pointer;

unsigned long font_stream_size = font_stream->size;

//first detect if font file is in IBM PC format

/**

char* buf = new char[7];

unsigned char* buffer = new unsigned char[7];//for the 6 header bytes (data segment length is unknown at this point) and final '\0'

std::string ascii_data;//for data segment "type 1" in IBM PC Format

//read the 6 header bytes

//for debug: g_warning("Reading from font file %s...", font_filename);

font_stream->close(font_stream);

ifstream font_file (font_filename, ios::in|ios::binary);

if (!font_file.is_open()) {

g_warning ("file %s: line %d: Cannot open font file %s", __FILE__, __LINE__, font_filename);

return false;

}

font_file.read(buf, 6);

buffer = (unsigned char*) buf;

//If font file is pfb, do the same as pfb to pfa converter

//check byte 1

if (buffer[0] == 0x80) {

const char hextab[17] = "0123456789abcdef";

unsigned long offset = 0;

while (offset < font_stream_size) {

gint length, i;

if (buffer[0] != 0x80) {

g_warning ("file %s: line %d: Corrupt %s", __FILE__, __LINE__, font_filename);

//TODO: print some default font data anyway like libgnomeprint/gnome_font_face_ps_embed_empty

return false;

}

switch (buffer[1]) {

case 1:

//get data segment length from bytes 3-6

//(Note: byte 1 is first byte in comments to match Adobe technical note 5040, but index 0 in code)

length = INT32_LSB_2_5 (buffer);

offset += 6;

//resize the buffer to fit the data segment length

delete [] buf;

buf = new char[length + 1];

buffer = new unsigned char[length + 1];

//read and print all the data segment length

font_file.read(buf, length);

buffer = (unsigned char*) buf;

/**

ascii_data.assign(buf, 0, length);

os << ascii_data;

offset += length;

//read next 6 header bytes

font_file.read(buf, 6);

break;

case 2:

length = INT32_LSB_2_5 (buffer);

offset += 6;

//resize the buffer to fit the data segment length

delete [] buf;

buf = new char[length + 1];

buffer = new unsigned char[length + 1];

//read and print all the data segment length

font_file.read(buf, length);

buffer = (unsigned char*) buf;

for (i = 0; i < length; i++) {

os << hextab[buffer[i] >> 4];

os << hextab[buffer[i] & 15];

offset += 1;

if ((i & 31) == 31 || i == length - 1)

os << "\n";

}

//read next 6 header bytes

font_file.read(buf, 6);

break;

case 3:

/* Finished */

os << "\n";

offset = font_stream_size;

break;

default:

os << "%%%ERROR: Font file corrupted at byte " << offset << "\n";

//TODO: print some default font data anyway like libgnomeprint/gnome_font_face_ps_embed_empty

return false;

}

}

}

//else: font file is pfa, include all directly

else {

//font is not in IBM PC format, all the file content can be directly printed

//resize buffer

delete [] buf;

buf = new char[font_stream_size + 1];

delete [] buffer;

font_file.seekg (0, ios::beg);

font_file.read(buf, font_stream_size);

/**

ascii_data.assign(buf, 0, font_stream_size);

os << ascii_data;

}

font_file.close();

delete [] buf;

buf = NULL;

buffer = NULL;// Clear buffer to prevent using invalid memory reference.

char font_psname[256];

font->PSName(font_psname, sizeof(font_psname));

FT_Long font_num_glyphs = font_face->num_glyphs;

if (font_num_glyphs < 256) {

gint glyph;

/* 8-bit vector */

os << "(" << font_psname << ") cvn findfont dup length dict begin\n";

os << "{1 index /FID ne {def} {pop pop} ifelse} forall\n";

os << "/Encoding [\n";

for (glyph = 0; glyph < 256; glyph++) {

guint g;

gchar c[256];

FT_Error status;

g = (glyph < font_num_glyphs) ? glyph : 0;

status = FT_Get_Glyph_Name (font_face, g, c, 256);

if (status != FT_Err_Ok) {

g_warning ("file %s: line %d: Glyph %d has no name in %s", __FILE__, __LINE__, g, font_filename);

g_snprintf (c, 256, ".notdef");

}

os << "/" << c << ( ((glyph & 0xf) == 0xf)?"\n":" " );

}

os << "] def currentdict end\n";

//TODO: manage several font instances for same ps name like in libgnomeprint/gnome_print_ps2_set_font_real()

//gf_pso_sprintf (pso, "(%s) cvn exch definefont pop\n", pso->encodedname);

os << "(" << font_psname << ") cvn exch definefont pop\n";

} else {

gint nfonts, i, j;

/* 16-bit vector */

nfonts = (font_num_glyphs + 255) >> 8;

os << "32 dict begin\n";

/* Common entries */

os << "/FontType 0 def\n";

os << "/FontMatrix [1 0 0 1 0 0] def\n";

os << "/FontName (" << font_psname << "-Glyph-Composite) cvn def\n";

os << "/LanguageLevel 2 def\n";

/* Type 0 entries */

os << "/FMapType 2 def\n";

/* Bitch 'o' bitches */

os << "/FDepVector [\n";

for (i = 0; i < nfonts; i++) {

os << "(" << font_psname << ") cvn findfont dup length dict begin\n";

os << "{1 index /FID ne {def} {pop pop} ifelse} forall\n";

os << "/Encoding [\n";

for (j = 0; j < 256; j++) {

gint glyph;

gchar c[256];

FT_Error status;

glyph = 256 * i + j;

if (glyph >= font_num_glyphs)

glyph = 0;

status = FT_Get_Glyph_Name (font_face, glyph, c, 256);

if (status != FT_Err_Ok) {

g_warning ("file %s: line %d: Glyph %d has no name in %s", __FILE__, __LINE__, glyph, font_filename);

g_snprintf (c, 256, ".notdef");

}

os << "/" << c << ( ((j & 0xf) == 0xf)?"\n":" " );

}

os << "] def\n";

os << "currentdict end (" << font_psname << "-Glyph-Page-";

os << std::dec << i;

os << ") cvn exch definefont\n";

}

os << "] def\n";

os << "/Encoding [\n";

for (i = 0; i < 256; i++) {

gint fn;

fn = (i < nfonts) ? i : 0;

os << std::dec << fn;

os << ( ((i & 0xf) == 0xf) ? "\n" : " " );

}

os << "] def\n";

os << "currentdict end\n";

//TODO: manage several font instances for same ps name like in libgnomeprint/gnome_print_ps2_set_font_real()

//gf_pso_sprintf (pso, "(%s) cvn exch definefont pop\n", pso->encodedname);

os << "(" << font_psname << ") cvn exch definefont pop\n";

}

//font embedding completed

return true;

}

bool PrintPS::embed_font(SVGOStringStream &os, font_instance* font)

{

//Hinted at by a comment in libgnomeprint/fcpattern_to_gp_font_entry()

//Determining the font type in the "Pango way"

FT_Face font_face = pango_ft2_font_get_face(font->pFont);

const FT_String* font_type = FT_Get_X11_Font_Format(font_face);

/**

//TODO: provide support for other font types (TrueType is a priority)

switch(_fontTypesMap[font_type])

{

case FONT_TYPE1:

return embed_t1 (os, font);

//TODO: implement TT font embedding

/*case FONT_TRUETYPE:

default:

g_warning("Unknown (not supported) font type for embedding: %s", font_type);

//TODO: embed something like in libgnomeprint/gnome_font_face_ps_embed_empty();

return false;

}

}

void PrintPS::print_glyphlist(SVGOStringStream &os, font_instance* font, Glib::ustring unistring)

{

//iterate through unicode chars in unistring

Glib::ustring::iterator unistring_iter;

gunichar unichar;

gint glyph_index, glyph_page;

FT_Face font_face = pango_ft2_font_get_face(font->pFont);

FT_Long font_num_glyphs = font_face->num_glyphs;

//whether font has more than one glyph pages (16-bit encoding)

bool two_bytes_encoded = (font_num_glyphs > 255);

for (unistring_iter = unistring.begin(); unistring_iter!=unistring.end(); unistring_iter++)

{

//get unicode char

unichar = *unistring_iter;

//get matching glyph index in current font for unicode char

//default glyph index is 0 for undefined font character (glyph unavailable)

//TODO: if glyph unavailable for current font, use a default font among the most Unicode-compliant - e.g. Bitstream Cyberbit - I guess

glyph_index = font->MapUnicodeChar(unichar);

//if more than one glyph pages for current font (16-bit encoding),

if(two_bytes_encoded)

{

//add glyph page before glyph index.

glyph_page = (glyph_index >> 8) & 0xff;

os << "\\";

//convert in octal code before printing

os << std::oct << glyph_page;

}

//(If one page - 8-bit encoding -, nothing to add.)

//TODO: explain the following line inspired from libgnomeprint/gnome_print_ps2_glyphlist()

glyph_index = glyph_index & 0xff;

//TODO: mark glyph as used for current font, if Inkscape has to embed minimal font data in PS

os << "\\";

//convert in octal code before printing

os << std::oct << glyph_index;

}

}

unsigned int

PrintPS::text(Inkscape::Extension::Print *mod, char const *text, NR::Point p,

SPStyle const *const style)

{

if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned.

if (_bitmap) return 0;

//check whether fonts have to be embedded in the PS output

//if not, use the former way of Inkscape to print text

gboolean font_embedded = mod->fontEmbedded();

Inkscape::SVGOStringStream os;

//find font

/**

font_instance *tf = font_factory::Default()->FaceFromStyle(style);

const gchar *fn = NULL;

char name_buf[256];

//check whether font was found

/**

if (tf) {

//get font PS name

tf->PSName(name_buf, sizeof(name_buf));

fn = name_buf;

} else {

// this system does not have this font, so cancel font embedding...

font_embedded = FALSE;

//this case seems to never happen since Inkscape uses a default font instead (like BitstreamVeraSans on Windows)

g_warning("Font %s not found.", fn);

//...and just use the name from SVG in the hope that PS interpreter will make sense of it

bool i = (style->font_style.value == SP_CSS_FONT_STYLE_ITALIC);

bool o = (style->font_style.value == SP_CSS_FONT_STYLE_OBLIQUE);

bool b = (style->font_weight.value == SP_CSS_FONT_WEIGHT_BOLD) ||

(style->font_weight.value >= SP_CSS_FONT_WEIGHT_500 && style->font_weight.value <= SP_CSS_FONT_WEIGHT_900);

fn = g_strdup_printf("%s%s%s%s",

g_strdelimit(style->text->font_family.value, " ", '-'),

(b || i || o) ? "-" : "",

(b) ? "Bold" : "",

(i) ? "Italic" : ((o) ? "Oblique" : "") );

}

/**

gpointer is_embedded;

//if not first time the font is used and if font embedding requested, check whether the font has been embedded (successfully the first time).

if(g_tree_lookup_extended(_fonts, fn, NULL, &is_embedded)) font_embedded = font_embedded && (strcmp((char *)is_embedded, "TRUE") == 0);

else

{

//first time the font is used

if(font_embedded)

{

//embed font in PS output

//adapted from libgnomeprint/gnome_print_ps2_close()

os << "%%BeginResource: font " << fn << "\n";

font_embedded = embed_font(os, tf);

os << "%%EndResource: font " << fn << "\n";

if(!font_embedded) g_warning("Font embedding canceled for font: %s", fn);

else fprintf(_begin_stream, "%s", os.str().c_str());

//empty os before resume printing to the script stream

std::string clrstr = "";

os.str(clrstr);

}

//add to the list

g_tree_insert(_fonts, g_strdup(fn), g_strdup((font_embedded)?"TRUE":"FALSE"));

}

Glib::ustring s;

// Escape chars

Inkscape::SVGOStringStream escaped_text;

//if font embedding, all characters will be converted to glyph indices (cf. PrintPS::print_glyphlist()),

//so no need to escape characters

//else back to the old way, i.e. escape chars: '\',')','(' and UTF-8 ones

if(font_embedded) s = text;

else {

escaped_text << std::oct;

for (gchar const *p_text = text ; *p_text ; p_text = g_utf8_next_char(p_text)) {

gunichar const c = g_utf8_get_char(p_text);

if (c == '\\' || c == ')' || c == '(')

escaped_text << '\\' << static_cast<char>(c);

else if (c >= 0x80)

escaped_text << '\\' << c;

else

escaped_text << static_cast<char>(c);

}

}

os << "gsave\n";

// set font

if(font_embedded) os << "/" << fn << " findfont\n";

else {

if (_latin1_encoded_fonts.find(fn) == _latin1_encoded_fonts.end()) {

if (!_newlatin1font_proc_defined) {

// input: newfontname, existingfontname

// output: new font object, also defined to newfontname

os << "/newlatin1font " // name of the proc

"{findfont dup length dict copy " // load the font and create a copy of it

"dup /Encoding ISOLatin1Encoding put " // change the encoding in the copy

"definefont} def\n"; // create the new font and leave it on the stack, define the proc

_newlatin1font_proc_defined = true;

}

if(strchr(fn, ' ') == NULL)

os << "/" << fn << "-ISOLatin1 /" << fn << " newlatin1font\n";

else

os << "(/" << fn << "-ISOLatin1) (/" << fn << ") newlatin1font\n";

_latin1_encoded_fonts.insert(fn);

} else

if(strchr(fn, ' ') == NULL)

os << "/" << fn << "-ISOLatin1 findfont\n";

else

os << "(/" << fn << "-ISOLatin1) findfont\n";

}

os << style->font_size.computed << " scalefont\n";

os << "setfont\n";

//The commented line beneath causes Inkscape to crash under Linux but not under Windows

//g_free((void*) fn);

if ( style->fill.isColor()

|| ( style->fill.isPaintserver()

&& SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) ) )

{

// set fill style

print_fill_style(os, style, NULL);

// FIXME: we don't know the pbox of text, so have to pass NULL. This means gradients with

// bbox units won't work with text. However userspace gradients don't work with text either

// (text is black) for some reason.

os << "newpath\n";

os << p[NR::X] << " " << p[NR::Y] << " moveto\n";

os << "(";

if(font_embedded) print_glyphlist(os, tf, s);

else os << escaped_text.str();

os << ") show\n";

}

if (style->stroke.isColor()) {

// set stroke style

print_stroke_style(os, style);

// paint stroke

os << "newpath\n";

os << p[NR::X] << " " << p[NR::Y] << " moveto\n";

os << "(";

if(font_embedded) print_glyphlist(os, tf, s);

else os << escaped_text.str();

os << ") false charpath stroke\n";

}

if(tf) tf->Unref();

os << "grestore\n";

fprintf(_stream, "%s", os.str().c_str());

return 0;

}

PrintPS::print_bpath(SVGOStringStream &os, NArtBpath const *bp)

{

os << "newpath\n";

bool closed = false;

while (bp->code != NR_END) {

switch (bp->code) {

case NR_MOVETO:

if (closed) {

os << "closepath\n";

}

closed = true;

os << bp->x3 << " " << bp->y3 << " moveto\n";

break;

case NR_MOVETO_OPEN:

if (closed) {

os << "closepath\n";

}

closed = false;

os << bp->x3 << " " << bp->y3 << " moveto\n";

break;

case NR_LINETO:

os << bp->x3 << " " << bp->y3 << " lineto\n";

break;

case NR_CURVETO:

os << bp->x1 << " " << bp->y1 << " "

<< bp->x2 << " " << bp->y2 << " "

<< bp->x3 << " " << bp->y3 << " curveto\n";

break;

default:

break;

}

bp += 1;

}

if (closed) {

os << "closepath\n";

}

}

PrintPS::compress_packbits(int nin,

guchar *src,

int *nout,

guchar *dst)

{

register guchar c;

int nrepeat, nliteral;

guchar *run_start;

guchar *start_dst = dst;

guchar *last_literal = NULL;

for (;;) {

if (nin <= 0) break;

run_start = src;

c = *run_start;

/* Search repeat bytes */

if ((nin > 1) && (c == src[1])) {

nrepeat = 1;

nin -= 2;

src += 2;

while ((nin > 0) && (c == *src)) {

nrepeat++;

src++;

nin--;

if (nrepeat == 127) break; /* Maximum repeat */

}

/* Add two-byte repeat to last literal run ? */

if ( (nrepeat == 1)

&& (last_literal != NULL) && (((*last_literal)+1)+2 <= 128) )

{

*last_literal += 2;

*(dst++) = c;

*(dst++) = c;

continue;

}

/* Add repeat run */

*(dst++) = (guchar)((-nrepeat) & 0xff);

*(dst++) = c;

last_literal = NULL;

continue;

}

/* Search literal bytes */

nliteral = 1;

nin--;

src++;

for (;;) {

if (nin <= 0) break;

if ((nin >= 2) && (src[0] == src[1])) /* A two byte repeat ? */

break;

nliteral++;

nin--;

src++;

if (nliteral == 128) break; /* Maximum literal run */

}

/* Could be added to last literal run ? */

if ((last_literal != NULL) && (((*last_literal)+1)+nliteral <= 128)) {

*last_literal += nliteral;

} else {

last_literal = dst;

*(dst++) = (guchar)(nliteral-1);

}

while (nliteral-- > 0) *(dst++) = *(run_start++);

}

*nout = dst - start_dst;

}

PrintPS::ascii85_init(void)

{

ascii85_len = 0;

ascii85_linewidth = 0;

}

PrintPS::ascii85_flush(SVGOStringStream &os)

{

char c[5];

bool const zero_case = (ascii85_buf == 0);

static int const max_linewidth = 75;

for (int i = 4; i >= 0; i--) {

c[i] = (ascii85_buf % 85) + '!';

ascii85_buf /= 85;

}

/* check for special case: "!!!!!" becomes "z", but only if not

if (zero_case && (ascii85_len == 4)) {

if (ascii85_linewidth >= max_linewidth) {

os << '\n';

ascii85_linewidth = 0;

}

os << 'z';

ascii85_linewidth++;

} else {

for (int i = 0; i < ascii85_len+1; i++) {

if ((ascii85_linewidth >= max_linewidth) && (c[i] != '%')) {

os << '\n';

ascii85_linewidth = 0;

}

os << c[i];

ascii85_linewidth++;

}

}

ascii85_len = 0;

ascii85_buf = 0;

}

inline void

PrintPS::ascii85_out(guchar byte, SVGOStringStream &os)

{

if (ascii85_len == 4)

ascii85_flush(os);

ascii85_buf <<= 8;

ascii85_buf |= byte;

ascii85_len++;

}

PrintPS::ascii85_nout(int n, guchar *uptr, SVGOStringStream &os)

{

while (n-- > 0) {

ascii85_out(*uptr, os);

uptr++;

}

}

PrintPS::ascii85_done(SVGOStringStream &os)

{

if (ascii85_len) {

/* zero any unfilled buffer portion, then flush */

ascii85_buf <<= (8 * (4-ascii85_len));

ascii85_flush(os);

}

os << "~>\n";

}

unsigned int

PrintPS::print_image(FILE *ofp, guchar *px, unsigned int width, unsigned int height, unsigned int rs,

NR::Matrix const *transform)

{

Inkscape::SVGOStringStream os;

os << "gsave\n";

os << "[" << (*transform)[0] << " "

<< (*transform)[1] << " "

<< (*transform)[2] << " "

<< (*transform)[3] << " "

<< (*transform)[4] << " "

<< (*transform)[5] << "] concat\n";

/* Write read image procedure */

os << "<<\n";

os << " /ImageType 3\n";

os << " /InterleaveType 1\n";

os << " /MaskDict\n";

os << " <<\n";

os << " /ImageType 1\n";

os << " /Width " << width << "\n";

os << " /Height " << height << "\n";

os << " /ImageMatrix "

<< "[" << width << " "

<< 0 << " "

<< 0 << " "

<< -((long) height) << " "

<< 0 << " "

<< height << "]\n";

os << " /BitsPerComponent 8\n";

os << " /Decode [1 0]\n";

os << " >>\n";

os << " /DataDict\n";

os << " <<\n";

os << " /ImageType 1\n";

os << " /Width " << width << "\n";

os << " /Height " << height << "\n";

os << " /ImageMatrix "

<< "[" << width << " "

<< 0 << " "

<< 0 << " "

<< -((long )height) << " "

<< 0 << " "

<< height << "]\n";

os << " /DataSource currentfile /ASCII85Decode filter\n";

os << " /BitsPerComponent 8\n";

os << " /Decode [0 1 0 1 0 1]\n";

os << " >>\n";

os << ">>\n";

/* Allocate buffer for packbits data. Worst case: Less than 1% increase */

guchar *const packb = (guchar *)g_malloc((4*width * 105)/100+2);

guchar *const plane = (guchar *)g_malloc(4*width);

os << "image\n";

ascii85_init();

for (unsigned i = 0; i < height; i++) {

guchar const *const src = px + i * rs;

guchar const *src_ptr = src;

guchar *plane_ptr = plane;

for (unsigned j = 0; j < width; j++) {

*(plane_ptr++) = *(src_ptr+3);

*(plane_ptr++) = *(src_ptr+0);

*(plane_ptr++) = *(src_ptr+1);

*(plane_ptr++) = *(src_ptr+2);

src_ptr += 4;

}

ascii85_nout(4*width, plane, os);

}

ascii85_done(os);

g_free(packb);

g_free(plane);

os << "grestore\n";

fprintf(ofp, "%s", os.str().c_str());

return 0;

}

PrintPS::textToPath(Inkscape::Extension::Print * ext)

{

return ext->get_param_bool("textToPath");

}

PrintPS::fontEmbedded(Inkscape::Extension::Print * ext)

{

return ext->get_param_bool("fontEmbedded");

}

#include "clear-n_.h"

PrintPS::init(void)

{

/* SVG in */

(void) Inkscape::Extension::build_from_mem(

"<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"

"<name>" N_("Postscript Print") "</name>\n"

"<id>" SP_MODULE_KEY_PRINT_PS "</id>\n"

"<param name=\"bitmap\" type=\"boolean\">false</param>\n"

"<param name=\"resolution\" type=\"string\">72</param>\n"

"<param name=\"destination\" type=\"string\">| lp</param>\n"

"<param name=\"pageBoundingBox\" type=\"boolean\">true</param>\n"

"<param name=\"textToPath\" type=\"boolean\">true</param>\n"

"<param name=\"fontEmbedded\" type=\"boolean\">false</param>\n"

"<print/>\n"

"</inkscape-extension>", new PrintPS());

}

} /* namespace Internal */

} /* namespace Extension */

} /* namespace Inkscape */