#define __SP_PS_C__ /** \file * PostScript printing. */ /* * Authors: * Lauris Kaplinski * bulia byak * * Basic printing code, EXCEPT image and * ascii85 filter is in public domain * * Image printing and Ascii85 filter: * * Copyright (C) 2006 Johan Engelen * Copyright (C) 1997-98 Peter Kirchgessner * Copyright (C) 1995 Spencer Kimball and Peter Mattis * George White * Austin Donnelly * * Licensed under GNU GPL */ /* Plain Print */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #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 #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"), // SP_DT_WIDGET(SP_ACTIVE_DESKTOP)->window, 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 * gui or batch mode (e.g. --print=blah). Consider throwing an exception: currently one of * the callers (sp_print_document_to_file, "ret = mod->begin(doc)") wrongly ignores the * return code. */ 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"; 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"; os << "%%DocumentMedia: plain " << (int) ceil(_width) << " " << (int) ceil(_height) << " " << "0 () ()\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 << "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 * * that can be zero if the first fprintf failed (os is empty) or "negative" (i.e. very positive * in unsigned int interpretation) if the first fprintf failed but this one succeeds, or * positive if both succeed. */ 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 = 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); 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); } g_free(px); } fprintf(_stream, "showpage\n"); int const res = fprintf(_stream, "%%%%EOF\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); } void 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"; } } } void 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, 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); } 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]; // 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); } 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(c); else if (c >= 0x80) escaped_text << '\\' << c; else escaped_text << static_cast(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; } /* PostScript helpers */ void 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"; } } /* The following code is licensed under GNU GPL. ** The packbits, ascii85 and imaging printing code ** is from the gimp's postscript.c. */ /** * \param nin Number of bytes of source data. * \param src Source data. * \param nout Number of output bytes. * \param dst Buffer for output. */ void 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; } void PrintPS::ascii85_init(void) { ascii85_len = 0; ascii85_linewidth = 0; } void 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 * at end of data. */ 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++; } void PrintPS::ascii85_nout(int n, guchar *uptr, SVGOStringStream &os) { while (n-- > 0) { ascii85_out(*uptr, os); uptr++; } } void 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"; /* 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; } bool PrintPS::textToPath(Inkscape::Extension::Print * ext) { return ext->get_param_bool("textToPath"); } #include "clear-n_.h" void PrintPS::init(void) { /* SVG in */ (void) Inkscape::Extension::build_from_mem( "\n" "" N_("Postscript Print") "\n" "" SP_MODULE_KEY_PRINT_PS "\n" "FALSE\n" "72\n" "| lp\n" "TRUE\n" "TRUE\n" "\n" "", new PrintPS()); } } /* namespace Internal */ } /* namespace Extension */ } /* namespace Inkscape */ /* End of GNU GPL code */ /* Local Variables: mode:c++ c-file-style:"stroustrup" c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) indent-tabs-mode:nil fill-column:99 End: */ // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :