#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 <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"

namespace Inkscape {

namespace Extension {

namespace Internal {

PrintPS::PrintPS() :

_stream(NULL),

_dpi(72),

_bitmap(false)

{

}

PrintPS::~PrintPS(void)

{

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

if (_stream) fclose(_stream);

/* 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;

/* Create dialog */

GtkTooltips *tt = gtk_tooltips_new();

g_object_ref((GObject *) tt);

gtk_object_sink((GtkObject *) tt);

GtkWidget *dlg = gtk_dialog_new_with_buttons(_("Print Destination"),

NULL,

(GtkDialogFlags) (GTK_DIALOG_MODAL | GTK_DIALOG_NO_SEPARATOR | GTK_DIALOG_DESTROY_WITH_PARENT),

GTK_STOCK_CANCEL,

GTK_RESPONSE_CANCEL,

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);

/* 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);

GtkWidget *e = gtk_entry_new();

if (1) {

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

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

? val

: "" ));

}

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);

/* 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_bool("bitmap", _bitmap);

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

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

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;

gsize bytesRead = 0;

gsize bytesWritten = 0;

GError *error = NULL;

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 (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 = 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;

}

_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 = 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(_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(_stream)) {

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

if (ferror(_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(_stream);

_stream = NULL;

fflush(stdout);

return 0;

}

// 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";

} 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";

}

os << "%%EndComments\n";

// 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

}

}

os << "%%EOF\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);

NRMatrix affine;

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

affine.c[1] = 0.0;

affine.c[2] = 0.0;

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

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

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

nr_arena_item_set_transform(mod->root, &affine);

guchar *const px = nr_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);

nr_matrix_set_identity(&gc.transform);

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

/* Blitter goes here */

NRMatrix imgt;

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

imgt.c[1] = 0.0;

imgt.c[2] = 0.0;

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

imgt.c[4] = 0.0;

imgt.c[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);

}

nr_free(px);

}

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

/* Flush stream to be sure. */

(void) fflush(_stream);

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

fclose(_stream);

_stream = 0;

_latin1_encoded_fonts.clear();

return res;

}

unsigned int

PrintPS::bind(Inkscape::Extension::Print *mod, NRMatrix const *transform, float opacity)

{

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

if (_bitmap) return 0;

Inkscape::SVGOStringStream os;

os << "gsave [" << transform->c[0] << " "

<< transform->c[1] << " "

<< transform->c[2] << " "

<< transform->c[3] << " "

<< transform->c[4] << " "

<< transform->c[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.type == SP_PAINT_TYPE_COLOR

|| ( style->fill.type == SP_PAINT_TYPE_PAINTSERVER

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

if (style->fill.type == SP_PAINT_TYPE_COLOR) {

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.type == SP_PAINT_TYPE_PAINTSERVER

&& 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 *= bbox2user.expansion();

}

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_dasharray_set &&

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, NRMatrix 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.type == SP_PAINT_TYPE_COLOR

|| ( style->fill.type == SP_PAINT_TYPE_PAINTSERVER

&& 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.value == SP_WIND_RULE_EVENODD) {

if (style->fill.type == SP_PAINT_TYPE_COLOR) {

os << "eofill\n";

} else {

g_assert( style->fill.type == SP_PAINT_TYPE_PAINTSERVER

&& 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.type == SP_PAINT_TYPE_COLOR) {

os << "fill\n";

} else {

g_assert( style->fill.type == SP_PAINT_TYPE_PAINTSERVER

&& 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, NRMatrix 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.type == SP_PAINT_TYPE_COLOR) {

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,

NRMatrix 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);

#if 0

fprintf(_stream, "gsave\n");

fprintf(_stream, "/rowdata %d string def\n", 3 * w);

fprintf(_stream, "[%g %g %g %g %g %g] concat\n",

transform->c[0],

transform->c[1],

transform->c[2],

transform->c[3],

transform->c[4],

transform->c[5]);

fprintf(_stream, "%d %d 8 [%d 0 0 -%d 0 %d]\n", w, h, w, h, h);

fprintf(_stream, "{currentfile rowdata readhexstring pop}\n");

fprintf(_stream, "false 3 colorimage\n");

for (unsigned int r = 0; r < h; r++) {

guchar *s;

unsigned int c0, c1, c;

s = px + r * rs;

for (c0 = 0; c0 < w; c0 += 24) {

c1 = MIN(w, c0 + 24);

for (c = c0; c < c1; c++) {

static char const xtab[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};

fputc(xtab[s[0] >> 4], _stream);

fputc(xtab[s[0] & 0xf], _stream);

fputc(xtab[s[1] >> 4], _stream);

fputc(xtab[s[1] & 0xf], _stream);

fputc(xtab[s[2] >> 4], _stream);

fputc(xtab[s[2] & 0xf], _stream);

s += 4;

}

fputs("\n", _stream);

}

}

fprintf(_stream, "grestore\n");

return 0;

#endif

}

char const *

PrintPS::PSFontName(SPStyle const *style)

{

font_instance *tf = (font_factory::Default())->Face(style->text->font_family.value, font_style_to_pos(*style));

char const *n;

char name_buf[256];

if (tf) {

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

n = 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);

}

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;

Inkscape::SVGOStringStream os;

// Escape chars

Inkscape::SVGOStringStream escaped_text;

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

char const *fn = PSFontName(style);

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;

}

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

_latin1_encoded_fonts.insert(fn);

} else

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

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

os << "setfont\n";

g_free((void *) fn);

if ( style->fill.type == SP_PAINT_TYPE_COLOR

|| ( style->fill.type == SP_PAINT_TYPE_PAINTSERVER

&& 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 << "(" << escaped_text.str() << ") show\n";

}

if (style->stroke.type == SP_PAINT_TYPE_COLOR) {

// set stroke style

print_stroke_style(os, style);

// paint stroke

os << "newpath\n";

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

os << "(" << escaped_text.str() << ") false charpath stroke\n";

}

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,

NRMatrix const *transform)

{

Inkscape::SVGOStringStream os;

os << "gsave\n";

os << "[" << transform->c[0] << " "

<< transform->c[1] << " "

<< transform->c[2] << " "

<< transform->c[3] << " "

<< transform->c[4] << " "

<< transform->c[5] << "] concat\n";

os << width << " " << height << " 8 ["

<< width << " 0 0 -" << height << " 0 " << height << "]\n";

/* Write read image procedure */

os << "% Strings to hold RGB-samples per scanline\n";

os << "/rstr " << width << " string def\n";

os << "/gstr " << width << " string def\n";

os << "/bstr " << width << " string def\n";

os << "{currentfile /ASCII85Decode filter /RunLengthDecode filter rstr readstring pop}\n";

os << "{currentfile /ASCII85Decode filter /RunLengthDecode filter gstr readstring pop}\n";

os << "{currentfile /ASCII85Decode filter /RunLengthDecode filter bstr readstring pop}\n";

os << "true 3\n";

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

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

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

/* ps_begin_data(ofp); */

os << "colorimage\n";

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

/* if ((i % tile_height) == 0) GET_RGB_TILE(data); */ /* Get more data */

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

/* Iterate over RGB */

for (int rgb = 0; rgb < 3; rgb++) {

guchar const *src_ptr = src + rgb;

guchar *plane_ptr = plane;

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

*(plane_ptr++) = *src_ptr;

src_ptr += 4;

}

int nout;

compress_packbits(width, plane, &nout, packb);

ascii85_init();

ascii85_nout(nout, packb, os);

ascii85_out(128, os); /* Write EOD of RunLengthDecode filter */

ascii85_done(os);

}

}

/* ps_end_data(ofp); */

#if 0

fprintf(ofp, "showpage\n");

g_free(data);

#endif

g_free(packb);

g_free(plane);

#if 0

if (ferror(ofp)) {

g_message(_("write error occurred"));

return (FALSE);

}

#endif

os << "grestore\n";

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

return 0;

}

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

{

return ext->get_param_bool("textToPath");

}

#include "clear-n_.h"

PrintPS::init(void)

{

/* SVG in */

(void) Inkscape::Extension::build_from_mem(

"<inkscape-extension>\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"

"<print/>\n"

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

}

} /* namespace Internal */

} /* namespace Extension */

} /* namespace Inkscape */