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| author | Ted Gould <ted@gould.cx> | 2008-11-21 05:24:08 +0000 |
|---|---|---|
| committer | Ted Gould <ted@canonical.com> | 2008-11-21 05:24:08 +0000 |
| commit | 44a3a78fb6a3863c0c7f3c1193837337e68a67e4 (patch) | |
| tree | 1722ee5ec6f88c881cd4124923354b3c1311501b /src/extension/internal/pdf-cairo.cpp | |
| parent | Merge from trunk (diff) | |
| download | inkscape-44a3a78fb6a3863c0c7f3c1193837337e68a67e4.tar.gz inkscape-44a3a78fb6a3863c0c7f3c1193837337e68a67e4.zip | |
Merge from fe-moved
(bzr r6891)
Diffstat (limited to 'src/extension/internal/pdf-cairo.cpp')
| -rw-r--r-- | src/extension/internal/pdf-cairo.cpp | 1060 |
1 files changed, 0 insertions, 1060 deletions
diff --git a/src/extension/internal/pdf-cairo.cpp b/src/extension/internal/pdf-cairo.cpp deleted file mode 100644 index 6c2b2ed62..000000000 --- a/src/extension/internal/pdf-cairo.cpp +++ /dev/null @@ -1,1060 +0,0 @@ -#define __SP_PDF_CAIRO_C__ - -/** \file - * PDF printing with Cairo. - */ -/* - * Authors: - * Miklós Erdélyi <erdelyim@gmail.com> - * - * Based on pdf.cpp - * - * Licensed under GNU GPL - */ - -/* Plain Print */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#ifdef HAVE_CAIRO_PDF - -#ifndef PANGO_ENABLE_BACKEND -#define PANGO_ENABLE_BACKEND -#endif - -#ifndef PANGO_ENABLE_ENGINE -#define PANGO_ENABLE_ENGINE -#endif - - -#include <signal.h> -#include <errno.h> - -#include <glib/gmem.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 "display/inkscape-cairo.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 "libnr/nr-matrix.h" -#include "libnr/nr-matrix-fns.h" -#include "libnr/nr-matrix-ops.h" - -#include <unit-constants.h> - -#include "pdf-cairo.h" -#include "extension/system.h" -#include "extension/print.h" - -#include "io/sys.h" - -#include <cairo.h> -#include <cairo-pdf.h> - -#include <pango/pango.h> -#include <pango/pangofc-fontmap.h> - -#ifdef RENDER_WITH_PANGO_CAIRO -#include <pango/pangocairo.h> -#else -#include <cairo-ft.h> -#endif -namespace Inkscape { -namespace Extension { -namespace Internal { - -static cairo_status_t _write_callback(void *closure, const unsigned char *data, unsigned int length); -static void _concat_transform(cairo_t *cr, double xx, double yx, double xy, double yy, double x0, double y0); - -PrintCairoPDF::PrintCairoPDF() : - cr(NULL), - pdf_surface(NULL), - _layout(NULL), - _dpi(72), - _bitmap(false) -{ -} - -PrintCairoPDF::~PrintCairoPDF(void) -{ - if (cr) cairo_destroy(cr); - if (pdf_surface) cairo_surface_destroy(pdf_surface); - if (_layout) g_object_unref(_layout); - - /* restore default signal handling for SIGPIPE */ -#if !defined(_WIN32) && !defined(__WIN32__) - (void) signal(SIGPIPE, SIG_DFL); -#endif - - return; -} - -unsigned int -PrintCairoPDF::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 PDF operators")); - gtk_tooltips_set_tip((GtkTooltips *) tt, rb, - _("Use PDF vector operators. The resulting image is usually smaller " - "in file size and can be arbitrarily scaled, but " - "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 -PrintCairoPDF::begin(Inkscape::Extension::Print *mod, SPDocument *doc) -{ - FILE *osf = NULL; - FILE *osp = NULL; - - _alpha_stack.clear(); - _alpha_stack.push_back(1.0); - - 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; - 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 - } - - // test output 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 = mod->get_param_bool("pageBoundingBox"); - SPItem* doc_item = SP_ITEM(mod->base); - // printf("Page Bounding Box: %s\n", pageBoundingBox ? "TRUE" : "FALSE"); - Geom::Matrix t (Geom::identity()); - if (pageBoundingBox) { - d.x0 = d.y0 = 0; - d.x1 = _width; - d.y1 = _height; - } else { - // if not page, use our base, which is either root or the item we want to export - sp_item_invoke_bbox(doc_item, &d, sp_item_i2doc_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; - } - - // When rendering a standalone object, we must set cairo's transform to the accumulated - // ancestor transform of that item - e.g. it may be rotated or skewed by its parent group, and - // we must reproduce that in the export even though we start traversing the tree from the - // object itself, ignoring its ancestors - - // complete transform, including doc_item's own transform - t = sp_item_i2doc_affine (doc_item); - // subreact doc_item's transform (comes first) from it - t = Geom::Matrix(doc_item->transform).inverse() * t; - - // create cairo context - pdf_surface = cairo_pdf_surface_create_for_stream(Inkscape::Extension::Internal::_write_callback, _stream, d.x1-d.x0, d.y1-d.y0); - cr = cairo_create(pdf_surface); - - // move to the origin - cairo_translate (cr, -d.x0, -d.y0); - - // set cairo transform; we must scale the translation values to pt - _concat_transform (cr, t[0], t[1], t[2], t[3], t[4]*PT_PER_PX, t[5]*PT_PER_PX); - - if (!_bitmap) { - cairo_scale(cr, PT_PER_PX, PT_PER_PX); - - // from now on we can output px, but they will be treated as pt - // note that the we do not have to flip the y axis - // because Cairo's coordinate system is identical to Inkscape's - } - - return 1; -} - -unsigned int -PrintCairoPDF::finish(Inkscape::Extension::Print *mod) -{ - if (!_stream) return 0; - if (_bitmap) return 0; - - cairo_show_page(cr); - - cairo_destroy(cr); - cairo_surface_finish(pdf_surface); - cairo_status_t status = cairo_surface_status(pdf_surface); - cairo_surface_destroy(pdf_surface); - cr = NULL; - pdf_surface = NULL; - - /* Flush stream to be sure. */ - (void) fflush(_stream); - - /* fixme: should really use pclose for popen'd streams */ - fclose(_stream); - _stream = 0; - - if (status == CAIRO_STATUS_SUCCESS) - return true; - else - return false; -} - -unsigned int -PrintCairoPDF::bind(Inkscape::Extension::Print *mod, Geom::Matrix const *transform, float opacity) -{ - if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned. - if (_bitmap) return 0; - - if (opacity < 1.0) { - cairo_push_group(cr); - } else { - cairo_save(cr); - } - _concat_transform(cr, (*transform)[0], (*transform)[1], (*transform)[2], (*transform)[3], (*transform)[4], (*transform)[5]); - // printf("bind: (%f) %f %f %f %f %f %f\n", opacity, transform->c[0], transform->c[1], transform->c[2], transform->c[3], transform->c[4], transform->c[5]); - // remember these to be able to undo them when outputting text - _last_tx = (*transform)[4]; - _last_ty = (*transform)[5]; - - _alpha_stack.push_back(opacity); - - return 1; -} - -unsigned int -PrintCairoPDF::release(Inkscape::Extension::Print *mod) -{ - if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned. - if (_bitmap) return 0; - - float opacity = _alpha_stack.back(); - - if (opacity < 1.0) { - cairo_pop_group_to_source(cr); - cairo_paint_with_alpha(cr, opacity); - } else { - cairo_restore(cr); - } -// g_printf("release\n"); - _alpha_stack.pop_back(); - g_assert(_alpha_stack.size() > 0); - - return 1; -} - -unsigned int -PrintCairoPDF::comment(Inkscape::Extension::Print *mod, char const *comment) -{ - if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned. - if (_bitmap) return 0; - - return 1; -} - -cairo_pattern_t* -PrintCairoPDF::create_pattern_for_paint(SPPaintServer const *const paintserver, NRRect const *pbox, float alpha) -{ - cairo_pattern_t *pattern = NULL; - bool apply_bbox2user = false; - - if (SP_IS_LINEARGRADIENT (paintserver)) { - - SPLinearGradient *lg=SP_LINEARGRADIENT(paintserver); - - sp_gradient_ensure_vector(SP_GRADIENT(lg)); // when exporting from commandline, vector is not built - - Geom::Point p1 (lg->x1.computed, lg->y1.computed); - Geom::Point p2 (lg->x2.computed, lg->y2.computed); - if (pbox && SP_GRADIENT(lg)->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) { - // convert to userspace - Geom::Matrix bbox2user(pbox->x1 - pbox->x0, 0, 0, pbox->y1 - pbox->y0, pbox->x0, pbox->y0); - p1 *= bbox2user; - p2 *= bbox2user; - } - - // create linear gradient pattern - pattern = cairo_pattern_create_linear(p1[Geom::X], p1[Geom::Y], p2[Geom::X], p2[Geom::Y]); - - // add stops - for (gint i = 0; unsigned(i) < lg->vector.stops.size(); i++) { - float rgb[3]; - sp_color_get_rgb_floatv(&lg->vector.stops[i].color, rgb); - cairo_pattern_add_color_stop_rgba(pattern, lg->vector.stops[i].offset, rgb[0], rgb[1], rgb[2], lg->vector.stops[i].opacity * alpha); - } - } else if (SP_IS_RADIALGRADIENT (paintserver)) { - - SPRadialGradient *rg=SP_RADIALGRADIENT(paintserver); - - sp_gradient_ensure_vector(SP_GRADIENT(rg)); // when exporting from commandline, vector is not built - - Geom::Point c (rg->cx.computed, rg->cy.computed); - Geom::Point f (rg->fx.computed, rg->fy.computed); - double r = rg->r.computed; - - Geom::Coord const df = hypot(f[Geom::X] - c[Geom::X], f[Geom::Y] - c[Geom::Y]); - if (df >= r) { - f[Geom::X] = c[Geom::X] + (f[Geom::X] - c[Geom::X] ) * r / (float) df; - f[Geom::Y] = c[Geom::Y] + (f[Geom::Y] - c[Geom::Y] ) * r / (float) df; - } - - if (pbox && SP_GRADIENT(rg)->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) - apply_bbox2user = true; - - // create radial gradient pattern - pattern = cairo_pattern_create_radial(f[Geom::X], f[Geom::Y], 0, c[Geom::X], c[Geom::Y], r); - - // add stops - for (gint i = 0; unsigned(i) < rg->vector.stops.size(); i++) { - float rgb[3]; - sp_color_get_rgb_floatv(&rg->vector.stops[i].color, rgb); - cairo_pattern_add_color_stop_rgba(pattern, rg->vector.stops[i].offset, rgb[0], rgb[1], rgb[2], rg->vector.stops[i].opacity * alpha); - } - } - - if (pattern) { - SPGradient *g = SP_GRADIENT(paintserver); - - // set extend type - SPGradientSpread spread = sp_gradient_get_spread(g); - switch (spread) { - case SP_GRADIENT_SPREAD_REPEAT: - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); - break; - case SP_GRADIENT_SPREAD_REFLECT: - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REFLECT); - break; - case SP_GRADIENT_SPREAD_PAD: - default: - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_PAD); - break; - } - - cairo_matrix_t pattern_matrix; - if (g->gradientTransform_set) { - // apply gradient transformation - cairo_matrix_init(&pattern_matrix, - g->gradientTransform[0], g->gradientTransform[1], - g->gradientTransform[2], g->gradientTransform[3], - g->gradientTransform[4], g->gradientTransform[5]); - } else { - cairo_matrix_init_identity (&pattern_matrix); - } - - if (apply_bbox2user) { - // convert to userspace - cairo_matrix_t bbox2user; - cairo_matrix_init (&bbox2user, pbox->x1 - pbox->x0, 0, 0, pbox->y1 - pbox->y0, pbox->x0, pbox->y0); - cairo_matrix_multiply (&pattern_matrix, &bbox2user, &pattern_matrix); - } - cairo_matrix_invert(&pattern_matrix); // because Cairo expects a userspace->patternspace matrix - cairo_pattern_set_matrix(pattern, &pattern_matrix); - } - - return pattern; -} - -void -PrintCairoPDF::print_fill_style(cairo_t *cr, 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); - - float alpha = SP_SCALE24_TO_FLOAT(style->fill_opacity.value); - - cairo_set_source_rgba(cr, rgb[0], rgb[1], rgb[2], alpha); - } else { - g_assert( style->fill.isPaintserver() - && SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) ); - - cairo_pattern_t *pattern = create_pattern_for_paint(SP_STYLE_FILL_SERVER(style), pbox, 1.0); - - if (pattern) { - cairo_set_source(cr, pattern); - cairo_pattern_destroy(pattern); - } - } -} - -unsigned int -PrintCairoPDF::fill(Inkscape::Extension::Print *mod, Geom::PathVector const &pathv, Geom::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)) ) ) { - - float alpha = SP_SCALE24_TO_FLOAT(style->fill_opacity.value); - - cairo_save(cr); - - print_fill_style(cr, style, pbox); - - cairo_new_path(cr); - feed_pathvector_to_cairo(cr, pathv); - - if (style->fill_rule.computed == SP_WIND_RULE_EVENODD) { - cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD); - } else { - cairo_set_fill_rule(cr, CAIRO_FILL_RULE_WINDING); - } - if (alpha != 1.0 && - !style->fill.isColor()) { - - cairo_clip (cr); - cairo_paint_with_alpha (cr, alpha); - } else { - cairo_fill(cr); - } - - cairo_restore(cr); - } - - return 0; -} - -void -PrintCairoPDF::print_stroke_style(cairo_t *cr, SPStyle const *style, NRRect const *pbox) -{ - float alpha = SP_SCALE24_TO_FLOAT(style->stroke_opacity.value); - - if ( style->stroke.isColor() ) { - float rgb[3]; - sp_color_get_rgb_floatv(&style->stroke.value.color, rgb); - - cairo_set_source_rgba(cr, rgb[0], rgb[1], rgb[2], alpha); - } else if ( style->stroke.isPaintserver() - && SP_IS_GRADIENT(SP_STYLE_STROKE_SERVER(style)) ) { - - cairo_pattern_t *pattern = create_pattern_for_paint(SP_STYLE_STROKE_SERVER(style), pbox, alpha); - - if (pattern) { - cairo_set_source(cr, pattern); - cairo_pattern_destroy(pattern); - } - } - - if (style->stroke_dash.n_dash && - style->stroke_dash.dash ) - { - cairo_set_dash(cr, style->stroke_dash.dash, style->stroke_dash.n_dash, style->stroke_dash.offset); - } else { - cairo_set_dash(cr, NULL, 0, 0.0); // disable dashing - } - - cairo_set_line_width(cr, style->stroke_width.computed); - - // set line join type - cairo_line_join_t join = CAIRO_LINE_JOIN_MITER; - switch (style->stroke_linejoin.computed) { - case SP_STROKE_LINEJOIN_MITER: - join = CAIRO_LINE_JOIN_MITER; - break; - case SP_STROKE_LINEJOIN_ROUND: - join = CAIRO_LINE_JOIN_ROUND; - break; - case SP_STROKE_LINEJOIN_BEVEL: - join = CAIRO_LINE_JOIN_BEVEL; - break; - } - cairo_set_line_join(cr, join); - - // set line cap type - cairo_line_cap_t cap = CAIRO_LINE_CAP_BUTT; - switch (style->stroke_linecap.computed) { - case SP_STROKE_LINECAP_BUTT: - cap = CAIRO_LINE_CAP_BUTT; - break; - case SP_STROKE_LINECAP_ROUND: - cap = CAIRO_LINE_CAP_ROUND; - break; - case SP_STROKE_LINECAP_SQUARE: - cap = CAIRO_LINE_CAP_SQUARE; - break; - } - cairo_set_line_cap(cr, cap); - cairo_set_miter_limit(cr, MAX(1, style->stroke_miterlimit.value)); -} - -unsigned int -PrintCairoPDF::stroke(Inkscape::Extension::Print *mod, Geom::PathVector const &pathv, Geom::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() || - ( style->stroke.isPaintserver() - && SP_IS_GRADIENT(SP_STYLE_STROKE_SERVER(style)) ) ) { - - cairo_save(cr); - - cairo_new_path(cr); - print_stroke_style(cr, style, pbox); - - feed_pathvector_to_cairo(cr, pathv); - cairo_stroke(cr); - - cairo_restore(cr); - } - - return 0; -} - -unsigned int -PrintCairoPDF::image(Inkscape::Extension::Print *mod, guchar *px, unsigned int w, unsigned int h, unsigned int rs, - Geom::Matrix const *transform, SPStyle const *style) -{ - if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned. - if (_bitmap) return 0; - - guchar* px_rgba = (guchar*)g_malloc(4 * w * h); - if (!px_rgba) return 0; - - float alpha = _alpha_stack.back(); - - // make a copy of the original pixbuf with premultiplied alpha - // if we pass the original pixbuf it will get messed up - for (unsigned i = 0; i < h; i++) { - for (unsigned j = 0; j < w; j++) { - guchar const *src = px + i * rs + j * 4; - guint32 *dst = (guint32 *)(px_rgba + i * rs + j * 4); - guchar r, g, b, alpha_dst; - - // calculate opacity-modified alpha - alpha_dst = src[3]; - if (alpha != 1.0) - alpha_dst = (guchar)ceil((float)alpha_dst * alpha); - - // premul alpha (needed because this will be undone by cairo-pdf) - r = src[0]*alpha_dst/255; - g = src[1]*alpha_dst/255; - b = src[2]*alpha_dst/255; - - *dst = (((alpha_dst) << 24) | (((r)) << 16) | (((g)) << 8) | (b)); - } - } - - cairo_surface_t *image_surface = cairo_image_surface_create_for_data(px_rgba, CAIRO_FORMAT_ARGB32, w, h, w * 4); - if (cairo_surface_status(image_surface)) { - g_printf("Error: %s\n", cairo_status_to_string(cairo_surface_status(image_surface))); - return 0; - } - - cairo_save(cr); - - // scaling by width & height is not needed because it will be done by cairo-pdf - // we have to translate down by height also in order to eliminate the last translation done by sp_image_print - cairo_matrix_t matrix; - cairo_matrix_init(&matrix, - (*transform)[0]/w, (*transform)[1], - (*transform)[2], -(*transform)[3]/h, - (*transform)[4], (*transform)[5] + (*transform)[3]); - cairo_transform(cr, &matrix); - - cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image_surface); - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_NONE); - - cairo_set_source(cr, pattern); - cairo_pattern_destroy(pattern); - - // set clip region so that the pattern will not be repeated (bug in Cairo prior 1.2.1) - cairo_new_path(cr); - cairo_rectangle(cr, 0, 0, w, h); - cairo_clip(cr); - - cairo_paint(cr); - - cairo_restore(cr); - - cairo_surface_destroy(image_surface); - g_free(px_rgba); - - return 0; -} - -#define GLYPH_ARRAY_SIZE 64 - -#ifndef RENDER_WITH_PANGO_CAIRO - -Geom::Point -PrintCairoPDF::draw_glyphs(cairo_t *cr, Geom::Point p, PangoFont *font, PangoGlyphString *glyph_string, - bool vertical, bool stroke) -{ - cairo_glyph_t glyph_array[GLYPH_ARRAY_SIZE]; - cairo_glyph_t *glyphs = glyph_array; - if (glyph_string->num_glyphs > GLYPH_ARRAY_SIZE) - glyphs = (cairo_glyph_t*)g_malloc(sizeof(cairo_glyph_t) * glyph_string->num_glyphs); - - PangoGlyphUnit x_offset = 0, y_offset = 0; - PangoGlyphInfo *info; - int num_invalid_glyphs = 0; - for (gint i = 0; i < glyph_string->num_glyphs; i++) { - info = &glyph_string->glyphs[i]; - // skip glyphs which are PANGO_GLYPH_EMPTY (0x0FFFFFFF) or have - // the PANGO_GLYPH_UNKNOWN_FLAG (0x10000000) set - if (info->glyph == 0x0FFFFFFF || info->glyph & 0x10000000) { - num_invalid_glyphs++; - continue; - } - - glyphs[i - num_invalid_glyphs].index = info->glyph; - glyphs[i - num_invalid_glyphs].x = p[Geom::X] + (x_offset + info->geometry.x_offset)/PANGO_SCALE; - glyphs[i - num_invalid_glyphs].y = p[Geom::Y] + (y_offset + info->geometry.y_offset)/PANGO_SCALE; - - if (vertical) { - cairo_text_extents_t extents; - cairo_glyph_extents(cr, &glyphs[i - num_invalid_glyphs], 1, &extents); - y_offset += (PangoGlyphUnit)(extents.y_advance * PANGO_SCALE); - } - else - x_offset += info->geometry.width; - } - - if (stroke) - cairo_glyph_path(cr, glyphs, glyph_string->num_glyphs - num_invalid_glyphs); - else - cairo_show_glyphs(cr, glyphs, glyph_string->num_glyphs - num_invalid_glyphs); - - if (glyph_string->num_glyphs > GLYPH_ARRAY_SIZE) - g_free(glyphs); - - return Geom::Point(x_offset, y_offset); -} -#endif - - - -unsigned int -PrintCairoPDF::text(Inkscape::Extension::Print *mod, char const *text, Geom::Point p, - SPStyle const *const style) -{ - bool dirty_pattern = false; - - if (!_stream) return 0; // XXX: fixme, returning -1 as unsigned. - if (_bitmap) return 0; - - cairo_save(cr); - - // this needs to be there to encounter Cairo's userspace locking semantics for set_source - // otherwise gradients won't be shown correctly - // printf("\n _last_tx:%f _last_ty:%f", _last_tx, _last_ty); - cairo_translate(cr, -_last_tx, -_last_ty); - - // create pango layout and context if needed - if (_layout == NULL) { -#ifdef RENDER_WITH_PANGO_CAIRO - //_context = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(pango_cairo_font_map_get_default())); - _layout = pango_cairo_create_layout(cr); -#else - _layout = pango_layout_new((font_factory::Default())->fontContext); -#endif - } - - // create font instance from style and use it - font_instance *tf = font_factory::Default()->FaceFromStyle(style); - if (tf == NULL) { // do something - g_printf("Warning: trouble getting font_instance\n"); - tf = (font_factory::Default())->Face("sans", font_style_to_pos(*style)); - } - PangoFontDescription *adjusted = pango_font_description_copy(tf->descr); - - pango_font_description_set_absolute_size(adjusted, (gint)(style->font_size.computed * PANGO_SCALE)); - pango_layout_set_font_description(_layout, adjusted); - pango_layout_set_text(_layout, text, -1); - - pango_font_description_free(adjusted); - tf->Unref(); - -#ifdef RENDER_WITH_PANGO_CAIRO - pango_cairo_update_layout(cr, _layout); -#else - pango_layout_context_changed(_layout); // is this needed? -#endif - - PangoLayoutLine *line = pango_layout_get_line(_layout, 0); - if (line == NULL) - return 0; - -#ifndef RENDER_WITH_PANGO_CAIRO - // apply the selected font - double size; - PangoLayoutRun *first_run = (PangoLayoutRun *)line->runs->data; - PangoFcFont *fc_font = PANGO_FC_FONT(first_run->item->analysis.font); - FcPattern *fc_pattern = fc_font->font_pattern; - - if ( style->writing_mode.set && - (style->writing_mode.computed == SP_CSS_WRITING_MODE_TB_RL || - style->writing_mode.computed == SP_CSS_WRITING_MODE_TB_LR) ) - { - FcPatternDel(fc_pattern, FC_VERTICAL_LAYOUT); - FcPatternAddBool(fc_pattern, FC_VERTICAL_LAYOUT, FcTrue); - dirty_pattern = true; - } - - cairo_font_face_t *font_face = cairo_ft_font_face_create_for_pattern(fc_pattern); - cairo_set_font_face(cr, font_face); - - if (FcPatternGetDouble(fc_pattern, FC_PIXEL_SIZE, 0, &size) != FcResultMatch) - size = 12.0; - - // adjust size and horizontal flip - cairo_matrix_t matrix; - cairo_get_font_matrix(cr, &matrix); - matrix.xx = size; - matrix.yy = -matrix.xx; - cairo_set_font_matrix(cr, &matrix); -#endif - - if ( style->fill.isColor() - || ( style->fill.isPaintserver() - && SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style)) ) ) - { - // set fill style - print_fill_style(cr, style, NULL); - -#ifndef RENDER_WITH_PANGO_CAIRO - Geom::Point cursor(_last_tx, _last_ty); - for (GSList *tmpList = line->runs; tmpList && tmpList->data; tmpList = tmpList->next) { - PangoLayoutRun *run = (PangoLayoutRun *)tmpList->data; - cursor += draw_glyphs(cr, cursor, run->item->analysis.font, run->glyphs, dirty_pattern, false) / PANGO_SCALE; - } -#else - cairo_new_path(cr); - // as pango has inverted origin we simulate the moveto and apply the vertical flip - //cairo_move_to(cr, _last_tx, _last_ty); - cairo_translate(cr, _last_tx, _last_ty); - cairo_scale(cr, 1, -1); - cairo_move_to(cr, 0, 0); - pango_cairo_show_layout_line(cr, line); - cairo_scale(cr, 1, -1); - cairo_translate(cr, -_last_tx, -_last_ty); - -#endif - } - - if (style->stroke.isColor() - || ( style->stroke.isPaintserver() - && SP_IS_GRADIENT(SP_STYLE_STROKE_SERVER(style)) ) ) - { - // set stroke style - print_stroke_style(cr, style, NULL); - - // paint stroke -#ifndef RENDER_WITH_PANGO_CAIRO - Geom::Point cursor(_last_tx, _last_ty); - for (GSList *tmpList = line->runs; tmpList && tmpList->data; tmpList = tmpList->next) { - PangoLayoutRun *run = (PangoLayoutRun *)tmpList->data; - cursor += draw_glyphs(cr, cursor, run->item->analysis.font, run->glyphs, dirty_pattern, true) / PANGO_SCALE; - } -#else - cairo_new_path(cr); - // as pango has inverted origin we simulate the moveto and apply the vertical flip - //cairo_move_to(cr, _last_tx, _last_ty); - cairo_translate(cr, _last_tx, _last_ty); - cairo_scale(cr, 1, -1); - cairo_move_to(cr, 0, 0); - pango_cairo_layout_line_path(cr, line); - cairo_scale(cr, 1, -1); - cairo_translate(cr, -_last_tx, -_last_ty); -#endif - cairo_stroke(cr); - } - - - cairo_restore(cr); - -#ifndef RENDER_WITH_PANGO_CAIRO - cairo_font_face_destroy(font_face); - - if (dirty_pattern) { - FcPatternDel(fc_pattern, FC_VERTICAL_LAYOUT); - FcPatternAddBool(fc_pattern, FC_VERTICAL_LAYOUT, FcFalse); - } -#endif - - return 0; -} - -/* Helper functions */ - -static void -_concat_transform(cairo_t *cr, double xx, double yx, double xy, double yy, double x0, double y0) -{ - cairo_matrix_t matrix; - - cairo_matrix_init(&matrix, xx, yx, xy, yy, x0, y0); - cairo_transform(cr, &matrix); -} - -static cairo_status_t -_write_callback(void *closure, const unsigned char *data, unsigned int length) -{ - size_t written; - FILE *file = (FILE*)closure; - - written = fwrite (data, 1, length, file); - - if (written == length) - return CAIRO_STATUS_SUCCESS; - else - return CAIRO_STATUS_WRITE_ERROR; -} - -bool -PrintCairoPDF::textToPath(Inkscape::Extension::Print * ext) -{ - return ext->get_param_bool("textToPath"); -} - -#include "clear-n_.h" - -void -PrintCairoPDF::init(void) -{ - /* PDF out */ - (void) Inkscape::Extension::build_from_mem( - "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n" - "<name>" N_("PDF Print") "</name>\n" - "<id>" SP_MODULE_KEY_PRINT_CAIRO_PDF "</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=\"exportDrawing\" type=\"boolean\">false</param>\n" - "<param name=\"exportCanvas\" type=\"boolean\">false</param>\n" - "<param name=\"exportId\" type=\"string\"></param>\n" - "<print/>\n" - "</inkscape-extension>", new PrintCairoPDF()); -} - - -} /* namespace Internal */ -} /* namespace Extension */ -} /* namespace Inkscape */ - -/* End of GNU GPL code */ - -#endif /* HAVE_CAIRO_PDF */ - - -/* - 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 : |
