1 /** \file
2 * Native PDF import using libpoppler.
3 *
4 * Authors:
5 * miklos erdelyi
6 *
7 * Copyright (C) 2007 Authors
8 *
9 * Released under GNU GPL, read the file 'COPYING' for more information
10 *
11 */
13 #ifdef HAVE_CONFIG_H
14 # include <config.h>
15 #endif
17 #ifdef HAVE_POPPLER
19 #include "goo/GooString.h"
20 #include "ErrorCodes.h"
21 #include "GlobalParams.h"
22 #include "PDFDoc.h"
23 #include "Page.h"
24 #include "Catalog.h"
26 #include "pdf-input.h"
27 #include "extension/system.h"
28 #include "extension/input.h"
29 #include "svg-builder.h"
30 #include "pdf-parser.h"
32 #include "document-private.h"
34 #include <gtk/gtkdialog.h>
36 namespace Inkscape {
37 namespace Extension {
38 namespace Internal {
40 /**
41 * \brief The PDF import dialog
42 * FIXME: Probably this should be placed into src/ui/dialog
43 */
45 static Glib::ustring crop_setting_choices[] = {
46 Glib::ustring(_("media box")),
47 Glib::ustring(_("crop box")),
48 Glib::ustring(_("trim box")),
49 Glib::ustring(_("bleed box")),
50 Glib::ustring(_("art box"))
51 };
53 PdfImportDialog::PdfImportDialog(PDFDoc *doc)
54 {
56 _pdf_doc = doc;
58 cancelbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-cancel")));
59 okbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-ok")));
60 _labelSelect = Gtk::manage(new class Gtk::Label(_("Select page:")));
62 // Page number
63 Gtk::Adjustment *_pageNumberSpin_adj = Gtk::manage(
64 new class Gtk::Adjustment(1, 1, _pdf_doc->getNumPages(), 1, 10, 0));
65 _pageNumberSpin = Gtk::manage(new class Gtk::SpinButton(*_pageNumberSpin_adj, 1, 1));
66 _labelTotalPages = Gtk::manage(new class Gtk::Label());
67 hbox2 = Gtk::manage(new class Gtk::HBox(false, 0));
68 // Disable the page selector when there's only one page
69 int num_pages = _pdf_doc->getCatalog()->getNumPages();
70 if ( num_pages == 1 ) {
71 _pageNumberSpin->set_sensitive(false);
72 } else {
73 // Display total number of pages
74 gchar *label_text = g_strdup_printf("/ %i", num_pages);
75 _labelTotalPages->set_label(label_text);
76 g_free(label_text);
77 }
79 // Crop settings
80 _cropCheck = Gtk::manage(new class Gtk::CheckButton(_("Crop to:")));
81 _cropTypeCombo = Gtk::manage(new class Gtk::ComboBoxText());
82 int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);
83 for ( int i = 0 ; i < num_crop_choices ; i++ ) {
84 _cropTypeCombo->append_text(crop_setting_choices[i]);
85 }
86 _cropTypeCombo->set_active_text(crop_setting_choices[0]);
87 _cropTypeCombo->set_sensitive(false);
89 hbox3 = Gtk::manage(new class Gtk::HBox(false, 0));
90 vbox2 = Gtk::manage(new class Gtk::VBox(false, 0));
91 alignment3 = Gtk::manage(new class Gtk::Alignment(0.5, 0.5, 1, 1));
92 _labelPageSettings = Gtk::manage(new class Gtk::Label(_("Page Settings")));
93 _pageSettingsFrame = Gtk::manage(new class Gtk::Frame());
94 _labelPrecision = Gtk::manage(new class Gtk::Label(_("Precision of approximation for gradient meshes:")));
96 _fallbackPrecisionSlider_adj = Gtk::manage(new class Gtk::Adjustment(2, 1, 256, 1, 10, 10));
97 _fallbackPrecisionSlider = Gtk::manage(new class Gtk::HScale(*_fallbackPrecisionSlider_adj));
98 _fallbackPrecisionSlider->set_value(2.0);
99 _labelPrecisionComment = Gtk::manage(new class Gtk::Label(_("rough")));
100 hbox6 = Gtk::manage(new class Gtk::HBox(false, 0));
102 // Text options
103 _labelText = Gtk::manage(new class Gtk::Label(_("Text handling:")));
104 _textHandlingCombo = Gtk::manage(new class Gtk::ComboBoxText());
105 _textHandlingCombo->append_text(_("import text as text"));
106 _textHandlingCombo->set_active_text(_("import text as text"));
108 hbox5 = Gtk::manage(new class Gtk::HBox(false, 0));
109 _embedImagesCheck = Gtk::manage(new class Gtk::CheckButton(_("Embed images")));
110 vbox3 = Gtk::manage(new class Gtk::VBox(false, 0));
111 alignment4 = Gtk::manage(new class Gtk::Alignment(0.5, 0.5, 1, 1));
112 _labelImportSettings = Gtk::manage(new class Gtk::Label(_("Import Settings")));
113 _importSettingsFrame = Gtk::manage(new class Gtk::Frame());
114 vbox1 = Gtk::manage(new class Gtk::VBox(false, 0));
115 _previewArea = Gtk::manage(new class Gtk::DrawingArea());
116 hbox1 = Gtk::manage(new class Gtk::HBox(false, 0));
117 cancelbutton->set_flags(Gtk::CAN_FOCUS);
118 cancelbutton->set_flags(Gtk::CAN_DEFAULT);
119 cancelbutton->set_relief(Gtk::RELIEF_NORMAL);
120 okbutton->set_flags(Gtk::CAN_FOCUS);
121 okbutton->set_flags(Gtk::CAN_DEFAULT);
122 okbutton->set_relief(Gtk::RELIEF_NORMAL);
123 this->get_action_area()->property_layout_style().set_value(Gtk::BUTTONBOX_END);
124 _labelSelect->set_alignment(0.5,0.5);
125 _labelSelect->set_padding(0,0);
126 _labelSelect->set_justify(Gtk::JUSTIFY_LEFT);
127 _labelSelect->set_line_wrap(false);
128 _labelSelect->set_use_markup(false);
129 _labelSelect->set_selectable(false);
130 _pageNumberSpin->set_flags(Gtk::CAN_FOCUS);
131 _pageNumberSpin->set_update_policy(Gtk::UPDATE_ALWAYS);
132 _pageNumberSpin->set_numeric(true);
133 _pageNumberSpin->set_digits(0);
134 _pageNumberSpin->set_wrap(false);
135 _labelTotalPages->set_alignment(0.5,0.5);
136 _labelTotalPages->set_padding(0,0);
137 _labelTotalPages->set_justify(Gtk::JUSTIFY_LEFT);
138 _labelTotalPages->set_line_wrap(false);
139 _labelTotalPages->set_use_markup(false);
140 _labelTotalPages->set_selectable(false);
141 hbox2->pack_start(*_labelSelect, Gtk::PACK_SHRINK, 0);
142 hbox2->pack_start(*_pageNumberSpin, Gtk::PACK_SHRINK, 4);
143 hbox2->pack_start(*_labelTotalPages, Gtk::PACK_SHRINK, 0);
144 _cropCheck->set_flags(Gtk::CAN_FOCUS);
145 _cropCheck->set_relief(Gtk::RELIEF_NORMAL);
146 _cropCheck->set_mode(true);
147 _cropCheck->set_active(false);
148 _cropTypeCombo->set_border_width(1);
149 hbox3->pack_start(*_cropCheck, Gtk::PACK_SHRINK, 0);
150 hbox3->pack_start(*_cropTypeCombo, Gtk::PACK_SHRINK, 4);
151 vbox2->pack_start(*hbox2);
152 vbox2->pack_start(*hbox3);
153 alignment3->add(*vbox2);
154 _labelPageSettings->set_alignment(0.5,0.5);
155 _labelPageSettings->set_padding(0,0);
156 _labelPageSettings->set_justify(Gtk::JUSTIFY_LEFT);
157 _labelPageSettings->set_line_wrap(false);
158 _labelPageSettings->set_use_markup(true);
159 _labelPageSettings->set_selectable(false);
160 _pageSettingsFrame->set_border_width(4);
161 _pageSettingsFrame->set_shadow_type(Gtk::SHADOW_ETCHED_IN);
162 _pageSettingsFrame->set_label_align(0,0.5);
163 _pageSettingsFrame->add(*alignment3);
164 _pageSettingsFrame->set_label_widget(*_labelPageSettings);
165 _labelPrecision->set_alignment(0.5,0.5);
166 _labelPrecision->set_padding(0,0);
167 _labelPrecision->set_justify(Gtk::JUSTIFY_LEFT);
168 _labelPrecision->set_line_wrap(false);
169 _labelPrecision->set_use_markup(false);
170 _labelPrecision->set_selectable(false);
171 _fallbackPrecisionSlider->set_size_request(180,-1);
172 _fallbackPrecisionSlider->set_flags(Gtk::CAN_FOCUS);
173 _fallbackPrecisionSlider->set_update_policy(Gtk::UPDATE_CONTINUOUS);
174 _fallbackPrecisionSlider->set_inverted(false);
175 _fallbackPrecisionSlider->set_digits(1);
176 _fallbackPrecisionSlider->set_draw_value(true);
177 _fallbackPrecisionSlider->set_value_pos(Gtk::POS_TOP);
178 _labelPrecisionComment->set_size_request(90,-1);
179 _labelPrecisionComment->set_alignment(0.5,0.5);
180 _labelPrecisionComment->set_padding(0,0);
181 _labelPrecisionComment->set_justify(Gtk::JUSTIFY_LEFT);
182 _labelPrecisionComment->set_line_wrap(false);
183 _labelPrecisionComment->set_use_markup(false);
184 _labelPrecisionComment->set_selectable(false);
185 hbox6->pack_start(*_fallbackPrecisionSlider, Gtk::PACK_SHRINK, 4);
186 hbox6->pack_start(*_labelPrecisionComment, Gtk::PACK_SHRINK, 4);
187 _labelText->set_alignment(0.5,0.5);
188 _labelText->set_padding(0,0);
189 _labelText->set_justify(Gtk::JUSTIFY_LEFT);
190 _labelText->set_line_wrap(false);
191 _labelText->set_use_markup(false);
192 _labelText->set_selectable(false);
193 hbox5->pack_start(*_labelText, Gtk::PACK_SHRINK, 0);
194 hbox5->pack_start(*_textHandlingCombo, Gtk::PACK_SHRINK, 0);
195 _embedImagesCheck->set_flags(Gtk::CAN_FOCUS);
196 _embedImagesCheck->set_relief(Gtk::RELIEF_NORMAL);
197 _embedImagesCheck->set_mode(true);
198 _embedImagesCheck->set_active(true);
199 vbox3->pack_start(*_labelPrecision, Gtk::PACK_SHRINK, 4);
200 vbox3->pack_start(*hbox6, Gtk::PACK_SHRINK, 0);
201 vbox3->pack_start(*hbox5);
202 vbox3->pack_start(*_embedImagesCheck, Gtk::PACK_SHRINK, 0);
203 alignment4->add(*vbox3);
204 _labelImportSettings->set_alignment(0.5,0.5);
205 _labelImportSettings->set_padding(0,0);
206 _labelImportSettings->set_justify(Gtk::JUSTIFY_LEFT);
207 _labelImportSettings->set_line_wrap(false);
208 _labelImportSettings->set_use_markup(true);
209 _labelImportSettings->set_selectable(false);
210 _importSettingsFrame->set_border_width(4);
211 _importSettingsFrame->set_shadow_type(Gtk::SHADOW_ETCHED_IN);
212 _importSettingsFrame->set_label_align(0,0.5);
213 _importSettingsFrame->add(*alignment4);
214 _importSettingsFrame->set_label_widget(*_labelImportSettings);
215 vbox1->pack_start(*_pageSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);
216 vbox1->pack_start(*_importSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);
217 hbox1->pack_start(*vbox1);
218 hbox1->pack_start(*_previewArea, Gtk::PACK_EXPAND_WIDGET, 4);
219 this->get_vbox()->set_homogeneous(false);
220 this->get_vbox()->set_spacing(0);
221 this->get_vbox()->pack_start(*hbox1);
222 this->set_title(_("PDF Import Settings"));
223 this->set_modal(true);
224 this->property_window_position().set_value(Gtk::WIN_POS_NONE);
225 this->set_resizable(true);
226 this->property_destroy_with_parent().set_value(false);
227 this->set_has_separator(true);
228 this->add_action_widget(*cancelbutton, -6);
229 this->add_action_widget(*okbutton, -5);
230 cancelbutton->show();
231 okbutton->show();
232 _labelSelect->show();
233 _pageNumberSpin->show();
234 _labelTotalPages->show();
235 hbox2->show();
236 _cropCheck->show();
237 _cropTypeCombo->show();
238 hbox3->show();
239 vbox2->show();
240 alignment3->show();
241 _labelPageSettings->show();
242 _pageSettingsFrame->show();
243 _labelPrecision->show();
244 _fallbackPrecisionSlider->show();
245 _labelPrecisionComment->show();
246 hbox6->show();
247 _labelText->show();
248 _textHandlingCombo->show();
249 hbox5->show();
250 _embedImagesCheck->show();
251 vbox3->show();
252 alignment4->show();
253 _labelImportSettings->show();
254 _importSettingsFrame->show();
255 vbox1->show();
256 _previewArea->show();
257 hbox1->show();
259 // Connect signals
260 _previewArea->signal_expose_event().connect(sigc::mem_fun(*this, &PdfImportDialog::_onExposePreview));
261 _pageNumberSpin_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportDialog::_onPageNumberChanged));
262 _cropCheck->signal_toggled().connect(sigc::mem_fun(*this, &PdfImportDialog::_onToggleCropping));
263 _fallbackPrecisionSlider_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportDialog::_onPrecisionChanged));
265 _render_thumb = false;
266 #ifdef HAVE_POPPLER_CAIRO
267 // Create an OutputDev
268 _preview_output_dev = new CairoOutputDev();
269 _preview_output_dev->startDoc(_pdf_doc->getXRef());
270 _cairo_surface = NULL;
271 _render_thumb = true;
272 #endif
274 // Set default preview size
275 _preview_width = 200;
276 _preview_height = 300;
278 // Init preview
279 _thumb_data = NULL;
280 _pageNumberSpin_adj->set_value(1.0);
281 }
283 PdfImportDialog::~PdfImportDialog() {
284 #ifdef HAVE_POPPLER_CAIRO
285 if (_preview_output_dev) {
286 delete _preview_output_dev;
287 }
288 if (_cairo_surface) {
289 cairo_surface_destroy(_cairo_surface);
290 }
291 #endif
292 if (_thumb_data) {
293 if (_render_thumb) {
294 delete _thumb_data;
295 } else {
296 gfree(_thumb_data);
297 }
298 }
299 }
301 bool PdfImportDialog::showDialog() {
302 show();
303 gint b = run();
304 hide();
305 if ( b == Gtk::RESPONSE_OK ) {
306 return TRUE;
307 } else {
308 return FALSE;
309 }
310 }
312 int PdfImportDialog::getSelectedPage() {
313 return _current_page;
314 }
316 /**
317 * \brief Retrieves the current settings into a repr which SvgBuilder will use
318 * for determining the behaviour desired by the user
319 */
320 void PdfImportDialog::getImportSettings(Inkscape::XML::Node *prefs) {
321 sp_repr_set_svg_double(prefs, "selectedPage", (double)_current_page);
322 if (_cropCheck->get_active()) {
323 Glib::ustring current_choice = _cropTypeCombo->get_active_text();
324 int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);
325 int i = 0;
326 for ( ; i < num_crop_choices ; i++ ) {
327 if ( current_choice == crop_setting_choices[i] ) {
328 break;
329 }
330 }
331 sp_repr_set_svg_double(prefs, "cropTo", (double)i);
332 } else {
333 sp_repr_set_svg_double(prefs, "cropTo", -1.0);
334 }
335 sp_repr_set_svg_double(prefs, "approximationPrecision",
336 _fallbackPrecisionSlider->get_value());
337 if (_embedImagesCheck->get_active()) {
338 prefs->setAttribute("embedImages", "1");
339 } else {
340 prefs->setAttribute("embedImages", "0");
341 }
342 }
344 /**
345 * \brief Redisplay the comment on the current approximation precision setting
346 * Evenly divides the interval of possible values between the available labels.
347 */
348 void PdfImportDialog::_onPrecisionChanged() {
350 static Glib::ustring precision_comments[] = {
351 Glib::ustring(_("rough")),
352 Glib::ustring(_("medium")),
353 Glib::ustring(_("fine")),
354 Glib::ustring(_("very fine"))
355 };
357 double min = _fallbackPrecisionSlider_adj->get_lower();
358 double max = _fallbackPrecisionSlider_adj->get_upper();
359 int num_intervals = sizeof(precision_comments) / sizeof(precision_comments[0]);
360 double interval_len = ( max - min ) / (double)num_intervals;
361 double value = _fallbackPrecisionSlider_adj->get_value();
362 int comment_idx = (int)floor( ( value - min ) / interval_len );
363 _labelPrecisionComment->set_label(precision_comments[comment_idx]);
364 }
366 void PdfImportDialog::_onToggleCropping() {
367 _cropTypeCombo->set_sensitive(_cropCheck->get_active());
368 }
370 void PdfImportDialog::_onPageNumberChanged() {
371 int page = _pageNumberSpin->get_value_as_int();
372 _current_page = CLAMP(page, 1, _pdf_doc->getCatalog()->getNumPages());
373 _setPreviewPage(_current_page);
374 }
376 #ifdef HAVE_POPPLER_CAIRO
377 /**
378 * \brief Copies image data from a Cairo surface to a pixbuf
379 *
380 * Borrowed from libpoppler, from the file poppler-page.cc
381 * Copyright (C) 2005, Red Hat, Inc.
382 *
383 */
384 static void copy_cairo_surface_to_pixbuf (cairo_surface_t *surface,
385 unsigned char *data,
386 GdkPixbuf *pixbuf)
387 {
388 int cairo_width, cairo_height, cairo_rowstride;
389 unsigned char *pixbuf_data, *dst, *cairo_data;
390 int pixbuf_rowstride, pixbuf_n_channels;
391 unsigned int *src;
392 int x, y;
394 cairo_width = cairo_image_surface_get_width (surface);
395 cairo_height = cairo_image_surface_get_height (surface);
396 cairo_rowstride = cairo_width * 4;
397 cairo_data = data;
399 pixbuf_data = gdk_pixbuf_get_pixels (pixbuf);
400 pixbuf_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
401 pixbuf_n_channels = gdk_pixbuf_get_n_channels (pixbuf);
403 if (cairo_width > gdk_pixbuf_get_width (pixbuf))
404 cairo_width = gdk_pixbuf_get_width (pixbuf);
405 if (cairo_height > gdk_pixbuf_get_height (pixbuf))
406 cairo_height = gdk_pixbuf_get_height (pixbuf);
407 for (y = 0; y < cairo_height; y++)
408 {
409 src = (unsigned int *) (cairo_data + y * cairo_rowstride);
410 dst = pixbuf_data + y * pixbuf_rowstride;
411 for (x = 0; x < cairo_width; x++)
412 {
413 dst[0] = (*src >> 16) & 0xff;
414 dst[1] = (*src >> 8) & 0xff;
415 dst[2] = (*src >> 0) & 0xff;
416 if (pixbuf_n_channels == 4)
417 dst[3] = (*src >> 24) & 0xff;
418 dst += pixbuf_n_channels;
419 src++;
420 }
421 }
422 }
423 #endif
425 /**
426 * \brief Updates the preview area with the previously rendered thumbnail
427 */
428 bool PdfImportDialog::_onExposePreview(GdkEventExpose *event) {
430 // Check if we have a thumbnail at all
431 if (!_thumb_data) {
432 return true;
433 }
435 // Create the pixbuf for the thumbnail
436 Glib::RefPtr<Gdk::Pixbuf> thumb;
437 if (_render_thumb) {
438 thumb = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true,
439 8, _thumb_width, _thumb_height);
440 } else {
441 thumb = Gdk::Pixbuf::create_from_data(_thumb_data, Gdk::COLORSPACE_RGB,
442 false, 8, _thumb_width, _thumb_height, _thumb_rowstride);
443 }
444 if (!thumb) {
445 return true;
446 }
448 // Set background to white
449 if (_render_thumb) {
450 thumb->fill(0xffffffff);
451 Glib::RefPtr<Gdk::Pixmap> back_pixmap = Gdk::Pixmap::create(
452 _previewArea->get_window(), _thumb_width, _thumb_height, -1);
453 if (!back_pixmap) {
454 return true;
455 }
456 back_pixmap->draw_pixbuf(Glib::RefPtr<Gdk::GC>(), thumb, 0, 0, 0, 0,
457 _thumb_width, _thumb_height,
458 Gdk::RGB_DITHER_NONE, 0, 0);
459 _previewArea->get_window()->set_back_pixmap(back_pixmap, false);
460 _previewArea->get_window()->clear();
461 }
462 #ifdef HAVE_POPPLER_CAIRO
463 // Copy the thumbnail image from the Cairo surface
464 if (_render_thumb) {
465 copy_cairo_surface_to_pixbuf(_cairo_surface, _thumb_data, thumb->gobj());
466 }
467 #endif
468 _previewArea->get_window()->draw_pixbuf(Glib::RefPtr<Gdk::GC>(), thumb,
469 0, 0, 0, _render_thumb ? 0 : 20,
470 -1, -1, Gdk::RGB_DITHER_NONE, 0, 0);
472 return true;
473 }
475 /**
476 * \brief Renders the given page's thumbnail using Cairo
477 */
478 void PdfImportDialog::_setPreviewPage(int page) {
480 _previewed_page = _pdf_doc->getCatalog()->getPage(page);
481 // Try to get a thumbnail from the PDF if possible
482 if (!_render_thumb) {
483 if (_thumb_data) {
484 gfree(_thumb_data);
485 _thumb_data = NULL;
486 }
487 if (!_previewed_page->loadThumb(&_thumb_data,
488 &_thumb_width, &_thumb_height, &_thumb_rowstride)) {
489 return;
490 }
491 // Redraw preview area
492 _previewArea->set_size_request(_thumb_width, _thumb_height + 20);
493 _previewArea->queue_draw();
494 return;
495 }
496 #ifdef HAVE_POPPLER_CAIRO
497 // Get page size by accounting for rotation
498 double width, height;
499 int rotate = _previewed_page->getRotate();
500 if ( rotate == 90 || rotate == 270 ) {
501 height = _previewed_page->getCropWidth();
502 width = _previewed_page->getCropHeight();
503 } else {
504 width = _previewed_page->getCropWidth();
505 height = _previewed_page->getCropHeight();
506 }
507 // Calculate the needed scaling for the page
508 double scale_x = (double)_preview_width / width;
509 double scale_y = (double)_preview_height / height;
510 double scale_factor = ( scale_x > scale_y ) ? scale_y : scale_x;
511 // Create new Cairo surface
512 _thumb_width = (int)ceil( width * scale_factor );
513 _thumb_height = (int)ceil( height * scale_factor );
514 _thumb_rowstride = _thumb_width * 4;
515 if (_thumb_data) {
516 delete _thumb_data;
517 }
518 _thumb_data = new unsigned char[ _thumb_rowstride * _thumb_height ];
519 if (_cairo_surface) {
520 cairo_surface_destroy(_cairo_surface);
521 }
522 _cairo_surface = cairo_image_surface_create_for_data(_thumb_data,
523 CAIRO_FORMAT_ARGB32, _thumb_width, _thumb_height, _thumb_rowstride);
524 cairo_t *cr = cairo_create(_cairo_surface);
525 cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); // Set fill color to white
526 cairo_paint(cr); // Clear it
527 cairo_scale(cr, scale_factor, scale_factor); // Use Cairo for resizing the image
528 _preview_output_dev->setCairo(cr);
529 // Render page
530 _previewed_page->displaySlice(_preview_output_dev,
531 72.0, 72.0, 0,
532 FALSE, /* useMediaBox */
533 TRUE, /* crop */
534 0, 0,
535 (int)ceil(_previewed_page->getCropWidth()),
536 (int)ceil(_previewed_page->getCropHeight()),
537 FALSE, /* printing */
538 _pdf_doc->getCatalog());
539 // Clean up
540 _preview_output_dev->setCairo(NULL);
541 cairo_destroy(cr);
542 // Redraw preview area
543 _previewArea->set_size_request(_preview_width, _preview_height);
544 _previewArea->queue_draw();
545 #endif
546 }
548 ////////////////////////////////////////////////////////////////////////////////
550 /**
551 * Parses the selected page of the given PDF document using PdfParser.
552 */
553 SPDocument *
554 PdfInput::open(::Inkscape::Extension::Input * mod, const gchar * uri) {
556 // Initialize the globalParams variable for poppler
557 if (!globalParams) {
558 globalParams = new GlobalParams();
559 }
560 GooString *filename_goo = new GooString(uri);
561 PDFDoc *pdf_doc = new PDFDoc(filename_goo, NULL, NULL, NULL); // TODO: Could ask for password
562 if (!pdf_doc->isOk()) {
563 int error = pdf_doc->getErrorCode();
564 delete pdf_doc;
565 if (error == errEncrypted) {
566 g_message("Document is encrypted.");
567 } else {
568 g_message("Failed to load document from data (error %d)", error);
569 }
571 return NULL;
572 }
573 PdfImportDialog *dlg = new PdfImportDialog(pdf_doc);
574 if (!dlg->showDialog()) {
575 delete dlg;
576 delete pdf_doc;
578 return NULL;
579 }
581 // Get needed page
582 int page_num = dlg->getSelectedPage();
583 Catalog *catalog = pdf_doc->getCatalog();
584 Page *page = catalog->getPage(page_num);
586 SPDocument *doc = sp_document_new(NULL, TRUE, TRUE);
587 bool saved = sp_document_get_undo_sensitive(doc);
588 sp_document_set_undo_sensitive(doc, false); // No need to undo in this temporary document
590 // Create builder
591 gchar *docname = g_path_get_basename(uri);
592 gchar *dot = g_strrstr(docname, ".");
593 if (dot) {
594 *dot = 0;
595 }
596 SvgBuilder *builder = new SvgBuilder(doc, docname, pdf_doc->getXRef());
598 // Get preferences
599 Inkscape::XML::Node *prefs = builder->getPreferences();
600 dlg->getImportSettings(prefs);
602 // Apply crop settings
603 PDFRectangle *clipToBox = NULL;
604 double crop_setting;
605 sp_repr_get_double(prefs, "cropTo", &crop_setting);
606 if ( crop_setting >= 0.0 ) { // Do page clipping
607 int crop_choice = (int)crop_setting;
608 switch (crop_choice) {
609 case 0: // Media box
610 clipToBox = page->getMediaBox();
611 break;
612 case 1: // Crop box
613 clipToBox = page->getCropBox();
614 break;
615 case 2: // Bleed box
616 clipToBox = page->getBleedBox();
617 break;
618 case 3: // Trim box
619 clipToBox = page->getTrimBox();
620 break;
621 case 4: // Art box
622 clipToBox = page->getArtBox();
623 break;
624 default:
625 break;
626 }
627 }
629 // Create parser
630 PdfParser *pdf_parser = new PdfParser(pdf_doc->getXRef(), builder, page_num-1, page->getRotate(),
631 page->getResourceDict(), page->getCropBox(), clipToBox);
633 // Set up approximation precision for parser
634 double color_delta;
635 sp_repr_get_double(prefs, "approximationPrecision", &color_delta);
636 if ( color_delta <= 0.0 ) {
637 color_delta = 1.0 / 2.0;
638 } else {
639 color_delta = 1.0 / color_delta;
640 }
641 for ( int i = 1 ; i <= pdfNumShadingTypes ; i++ ) {
642 pdf_parser->setApproximationPrecision(i, color_delta, 6);
643 }
645 // Parse the document structure
646 Object obj;
647 page->getContents(&obj);
648 if (!obj.isNull()) {
649 pdf_parser->parse(&obj);
650 }
652 // Cleanup
653 obj.free();
654 delete pdf_parser;
655 delete builder;
656 g_free(docname);
657 delete pdf_doc;
659 // Restore undo
660 sp_document_set_undo_sensitive(doc, saved);
662 return doc;
663 }
665 #include "../clear-n_.h"
667 void
668 PdfInput::init(void) {
669 Inkscape::Extension::Extension * ext;
671 /* PDF in */
672 ext = Inkscape::Extension::build_from_mem(
673 "<inkscape-extension>\n"
674 "<name>PDF Input</name>\n"
675 "<id>org.inkscape.input.pdf</id>\n"
676 "<input>\n"
677 "<extension>.pdf</extension>\n"
678 "<mimetype>application/pdf</mimetype>\n"
679 "<filetypename>Adobe PDF (*.pdf) [via poppler]</filetypename>\n"
680 "<filetypetooltip>Adobe Portable Document Format</filetypetooltip>\n"
681 "</input>\n"
682 "</inkscape-extension>", new PdfInput());
684 /* AI in */
685 ext = Inkscape::Extension::build_from_mem(
686 "<inkscape-extension>\n"
687 "<name>AI Input</name>\n"
688 "<id>org.inkscape.input.ai</id>\n"
689 "<input>\n"
690 "<extension>.ai</extension>\n"
691 "<mimetype>image/x-adobe-illustrator</mimetype>\n"
692 "<filetypename>Adobe Illustrator (*.ai) [PDF-based]</filetypename>\n"
693 "<filetypetooltip>Open files saved with recent versions of Adobe Illustrator</filetypetooltip>\n"
694 "</input>\n"
695 "</inkscape-extension>", new PdfInput());
696 } // init
698 } } } /* namespace Inkscape, Extension, Implementation */
700 #endif /* HAVE_POPPLER */
702 /*
703 Local Variables:
704 mode:c++
705 c-file-style:"stroustrup"
706 c-file-offsets:((innamespace . 0)(inline-open . 0))
707 indent-tabs-mode:nil
708 fill-column:99
709 End:
710 */
711 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :