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 #ifdef HAVE_POPPLER_CAIRO
27 #include <poppler/glib/poppler.h>
28 #include <poppler/glib/poppler-document.h>
29 #include <poppler/glib/poppler-page.h>
30 #endif
32 #include "pdf-input.h"
33 #include "extension/system.h"
34 #include "extension/input.h"
35 #include "svg-builder.h"
36 #include "pdf-parser.h"
38 #include "document-private.h"
39 #include "application/application.h"
41 #include "dialogs/dialog-events.h"
42 #include <gtk/gtkdialog.h>
44 namespace Inkscape {
45 namespace Extension {
46 namespace Internal {
48 /**
49 * \brief The PDF import dialog
50 * FIXME: Probably this should be placed into src/ui/dialog
51 */
53 static const gchar * crop_setting_choices[] = {
54 //TRANSLATORS: The following are document crop settings for PDF import
55 // more info: http://www.acrobatusers.com/tech_corners/javascript_corner/tips/2006/page_bounds/
56 N_("media box"),
57 N_("crop box"),
58 N_("trim box"),
59 N_("bleed box"),
60 N_("art box")
61 };
63 PdfImportDialog::PdfImportDialog(PDFDoc *doc, const gchar *uri)
64 {
65 #ifdef HAVE_POPPLER_CAIRO
66 _poppler_doc = NULL;
67 #endif // HAVE_POPPLER_CAIRO
68 _pdf_doc = doc;
70 cancelbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-cancel")));
71 okbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-ok")));
72 _labelSelect = Gtk::manage(new class Gtk::Label(_("Select page:")));
74 // Page number
75 Gtk::Adjustment *_pageNumberSpin_adj = Gtk::manage(
76 new class Gtk::Adjustment(1, 1, _pdf_doc->getNumPages(), 1, 10, 0));
77 _pageNumberSpin = Gtk::manage(new class Gtk::SpinButton(*_pageNumberSpin_adj, 1, 1));
78 _labelTotalPages = Gtk::manage(new class Gtk::Label());
79 hbox2 = Gtk::manage(new class Gtk::HBox(false, 0));
80 // Disable the page selector when there's only one page
81 int num_pages = _pdf_doc->getCatalog()->getNumPages();
82 if ( num_pages == 1 ) {
83 _pageNumberSpin->set_sensitive(false);
84 } else {
85 // Display total number of pages
86 gchar *label_text = g_strdup_printf(_("out of %i"), num_pages);
87 _labelTotalPages->set_label(label_text);
88 g_free(label_text);
89 }
91 // Crop settings
92 _cropCheck = Gtk::manage(new class Gtk::CheckButton(_("Clip to:")));
93 _cropTypeCombo = Gtk::manage(new class Gtk::ComboBoxText());
94 int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);
95 for ( int i = 0 ; i < num_crop_choices ; i++ ) {
96 _cropTypeCombo->append_text(_(crop_setting_choices[i]));
97 }
98 _cropTypeCombo->set_active_text(_(crop_setting_choices[0]));
99 _cropTypeCombo->set_sensitive(false);
101 hbox3 = Gtk::manage(new class Gtk::HBox(false, 4));
102 vbox2 = Gtk::manage(new class Gtk::VBox(false, 4));
103 alignment3 = Gtk::manage(new class Gtk::Alignment(0.5, 0.5, 1, 1));
104 _labelPageSettings = Gtk::manage(new class Gtk::Label(_("Page settings")));
105 _pageSettingsFrame = Gtk::manage(new class Gtk::Frame());
106 _labelPrecision = Gtk::manage(new class Gtk::Label(_("Precision of approximating gradient meshes:")));
107 _labelPrecisionWarning = Gtk::manage(new class Gtk::Label(_("<b>Note</b>: setting the precision too high may result in a large SVG file and slow performance.")));
109 _fallbackPrecisionSlider_adj = Gtk::manage(new class Gtk::Adjustment(2, 1, 256, 1, 10, 10));
110 _fallbackPrecisionSlider = Gtk::manage(new class Gtk::HScale(*_fallbackPrecisionSlider_adj));
111 _fallbackPrecisionSlider->set_value(2.0);
112 _labelPrecisionComment = Gtk::manage(new class Gtk::Label(_("rough")));
113 hbox6 = Gtk::manage(new class Gtk::HBox(false, 4));
115 // Text options
116 _labelText = Gtk::manage(new class Gtk::Label(_("Text handling:")));
117 _textHandlingCombo = Gtk::manage(new class Gtk::ComboBoxText());
118 _textHandlingCombo->append_text(_("Import text as text"));
119 _textHandlingCombo->set_active_text(_("Import text as text"));
120 _localFontsCheck = Gtk::manage(new class Gtk::CheckButton(_("Replace PDF fonts by closest-named installed fonts")));
122 hbox5 = Gtk::manage(new class Gtk::HBox(false, 4));
123 _embedImagesCheck = Gtk::manage(new class Gtk::CheckButton(_("Embed images")));
124 vbox3 = Gtk::manage(new class Gtk::VBox(false, 4));
125 alignment4 = Gtk::manage(new class Gtk::Alignment(0.5, 0.5, 1, 1));
126 _labelImportSettings = Gtk::manage(new class Gtk::Label(_("Import settings")));
127 _importSettingsFrame = Gtk::manage(new class Gtk::Frame());
128 vbox1 = Gtk::manage(new class Gtk::VBox(false, 4));
129 _previewArea = Gtk::manage(new class Gtk::DrawingArea());
130 hbox1 = Gtk::manage(new class Gtk::HBox(false, 4));
131 cancelbutton->set_flags(Gtk::CAN_FOCUS);
132 cancelbutton->set_flags(Gtk::CAN_DEFAULT);
133 cancelbutton->set_relief(Gtk::RELIEF_NORMAL);
134 okbutton->set_flags(Gtk::CAN_FOCUS);
135 okbutton->set_flags(Gtk::CAN_DEFAULT);
136 okbutton->set_relief(Gtk::RELIEF_NORMAL);
137 this->get_action_area()->property_layout_style().set_value(Gtk::BUTTONBOX_END);
138 _labelSelect->set_alignment(0.5,0.5);
139 _labelSelect->set_padding(4,0);
140 _labelSelect->set_justify(Gtk::JUSTIFY_LEFT);
141 _labelSelect->set_line_wrap(false);
142 _labelSelect->set_use_markup(false);
143 _labelSelect->set_selectable(false);
144 _pageNumberSpin->set_flags(Gtk::CAN_FOCUS);
145 _pageNumberSpin->set_update_policy(Gtk::UPDATE_ALWAYS);
146 _pageNumberSpin->set_numeric(true);
147 _pageNumberSpin->set_digits(0);
148 _pageNumberSpin->set_wrap(false);
149 _labelTotalPages->set_alignment(0.5,0.5);
150 _labelTotalPages->set_padding(4,0);
151 _labelTotalPages->set_justify(Gtk::JUSTIFY_LEFT);
152 _labelTotalPages->set_line_wrap(false);
153 _labelTotalPages->set_use_markup(false);
154 _labelTotalPages->set_selectable(false);
155 hbox2->pack_start(*_labelSelect, Gtk::PACK_SHRINK, 4);
156 hbox2->pack_start(*_pageNumberSpin, Gtk::PACK_SHRINK, 4);
157 hbox2->pack_start(*_labelTotalPages, Gtk::PACK_SHRINK, 4);
158 _cropCheck->set_flags(Gtk::CAN_FOCUS);
159 _cropCheck->set_relief(Gtk::RELIEF_NORMAL);
160 _cropCheck->set_mode(true);
161 _cropCheck->set_active(false);
162 _cropTypeCombo->set_border_width(1);
163 hbox3->pack_start(*_cropCheck, Gtk::PACK_SHRINK, 4);
164 hbox3->pack_start(*_cropTypeCombo, Gtk::PACK_SHRINK, 0);
165 vbox2->pack_start(*hbox2);
166 vbox2->pack_start(*hbox3);
167 alignment3->add(*vbox2);
168 _labelPageSettings->set_alignment(0.5,0.5);
169 _labelPageSettings->set_padding(4,0);
170 _labelPageSettings->set_justify(Gtk::JUSTIFY_LEFT);
171 _labelPageSettings->set_line_wrap(false);
172 _labelPageSettings->set_use_markup(true);
173 _labelPageSettings->set_selectable(false);
174 _pageSettingsFrame->set_border_width(4);
175 _pageSettingsFrame->set_shadow_type(Gtk::SHADOW_ETCHED_IN);
176 _pageSettingsFrame->set_label_align(0,0.5);
177 _pageSettingsFrame->add(*alignment3);
178 _pageSettingsFrame->set_label_widget(*_labelPageSettings);
179 _labelPrecision->set_alignment(0,0.5);
180 _labelPrecision->set_padding(4,0);
181 _labelPrecision->set_justify(Gtk::JUSTIFY_LEFT);
182 _labelPrecision->set_line_wrap(true);
183 _labelPrecision->set_use_markup(false);
184 _labelPrecision->set_selectable(false);
185 _labelPrecisionWarning->set_alignment(0,0.5);
186 _labelPrecisionWarning->set_padding(4,0);
187 _labelPrecisionWarning->set_justify(Gtk::JUSTIFY_LEFT);
188 _labelPrecisionWarning->set_line_wrap(true);
189 _labelPrecisionWarning->set_use_markup(true);
190 _labelPrecisionWarning->set_selectable(false);
191 _fallbackPrecisionSlider->set_size_request(180,-1);
192 _fallbackPrecisionSlider->set_flags(Gtk::CAN_FOCUS);
193 _fallbackPrecisionSlider->set_update_policy(Gtk::UPDATE_CONTINUOUS);
194 _fallbackPrecisionSlider->set_inverted(false);
195 _fallbackPrecisionSlider->set_digits(1);
196 _fallbackPrecisionSlider->set_draw_value(true);
197 _fallbackPrecisionSlider->set_value_pos(Gtk::POS_TOP);
198 _labelPrecisionComment->set_size_request(90,-1);
199 _labelPrecisionComment->set_alignment(0.5,0.5);
200 _labelPrecisionComment->set_padding(4,0);
201 _labelPrecisionComment->set_justify(Gtk::JUSTIFY_LEFT);
202 _labelPrecisionComment->set_line_wrap(false);
203 _labelPrecisionComment->set_use_markup(false);
204 _labelPrecisionComment->set_selectable(false);
205 hbox6->pack_start(*_fallbackPrecisionSlider, Gtk::PACK_SHRINK, 4);
206 hbox6->pack_start(*_labelPrecisionComment, Gtk::PACK_SHRINK, 0);
207 _labelText->set_alignment(0.5,0.5);
208 _labelText->set_padding(4,0);
209 _labelText->set_justify(Gtk::JUSTIFY_LEFT);
210 _labelText->set_line_wrap(false);
211 _labelText->set_use_markup(false);
212 _labelText->set_selectable(false);
213 hbox5->pack_start(*_labelText, Gtk::PACK_SHRINK, 0);
214 hbox5->pack_start(*_textHandlingCombo, Gtk::PACK_SHRINK, 0);
215 _localFontsCheck->set_flags(Gtk::CAN_FOCUS);
216 _localFontsCheck->set_relief(Gtk::RELIEF_NORMAL);
217 _localFontsCheck->set_mode(true);
218 _localFontsCheck->set_active(true);
219 _embedImagesCheck->set_flags(Gtk::CAN_FOCUS);
220 _embedImagesCheck->set_relief(Gtk::RELIEF_NORMAL);
221 _embedImagesCheck->set_mode(true);
222 _embedImagesCheck->set_active(true);
223 vbox3->pack_start(*_labelPrecision, Gtk::PACK_SHRINK, 0);
224 vbox3->pack_start(*hbox6, Gtk::PACK_SHRINK, 0);
225 vbox3->pack_start(*_labelPrecisionWarning, Gtk::PACK_SHRINK, 0);
226 vbox3->pack_start(*hbox5, Gtk::PACK_SHRINK, 4);
227 vbox3->pack_start(*_localFontsCheck, Gtk::PACK_SHRINK, 0);
228 vbox3->pack_start(*_embedImagesCheck, Gtk::PACK_SHRINK, 0);
229 alignment4->add(*vbox3);
230 _labelImportSettings->set_alignment(0.5,0.5);
231 _labelImportSettings->set_padding(4,0);
232 _labelImportSettings->set_justify(Gtk::JUSTIFY_LEFT);
233 _labelImportSettings->set_line_wrap(false);
234 _labelImportSettings->set_use_markup(true);
235 _labelImportSettings->set_selectable(false);
236 _importSettingsFrame->set_border_width(4);
237 _importSettingsFrame->set_shadow_type(Gtk::SHADOW_ETCHED_IN);
238 _importSettingsFrame->set_label_align(0,0.5);
239 _importSettingsFrame->add(*alignment4);
240 _importSettingsFrame->set_label_widget(*_labelImportSettings);
241 vbox1->pack_start(*_pageSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);
242 vbox1->pack_start(*_importSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);
243 hbox1->pack_start(*vbox1);
244 hbox1->pack_start(*_previewArea, Gtk::PACK_EXPAND_WIDGET, 4);
245 this->get_vbox()->set_homogeneous(false);
246 this->get_vbox()->set_spacing(0);
247 this->get_vbox()->pack_start(*hbox1);
248 this->set_title(_("PDF Import Settings"));
249 this->set_modal(true);
250 sp_transientize((GtkWidget *)this->gobj()); //Make transient
251 this->property_window_position().set_value(Gtk::WIN_POS_NONE);
252 this->set_resizable(true);
253 this->property_destroy_with_parent().set_value(false);
254 this->set_has_separator(true);
255 this->add_action_widget(*cancelbutton, -6);
256 this->add_action_widget(*okbutton, -5);
257 cancelbutton->show();
258 okbutton->show();
259 _labelSelect->show();
260 _pageNumberSpin->show();
261 _labelTotalPages->show();
262 hbox2->show();
263 _cropCheck->show();
264 _cropTypeCombo->show();
265 hbox3->show();
266 vbox2->show();
267 alignment3->show();
268 _labelPageSettings->show();
269 _pageSettingsFrame->show();
270 _labelPrecision->show();
271 _labelPrecisionWarning->show();
272 _fallbackPrecisionSlider->show();
273 _labelPrecisionComment->show();
274 hbox6->show();
275 _labelText->show();
276 _textHandlingCombo->show();
277 hbox5->show();
278 _localFontsCheck->show();
279 _embedImagesCheck->show();
280 vbox3->show();
281 alignment4->show();
282 _labelImportSettings->show();
283 _importSettingsFrame->show();
284 vbox1->show();
285 _previewArea->show();
286 hbox1->show();
288 // Connect signals
289 _previewArea->signal_expose_event().connect(sigc::mem_fun(*this, &PdfImportDialog::_onExposePreview));
290 _pageNumberSpin_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportDialog::_onPageNumberChanged));
291 _cropCheck->signal_toggled().connect(sigc::mem_fun(*this, &PdfImportDialog::_onToggleCropping));
292 _fallbackPrecisionSlider_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportDialog::_onPrecisionChanged));
294 _render_thumb = false;
295 #ifdef HAVE_POPPLER_CAIRO
296 _cairo_surface = NULL;
297 _render_thumb = true;
298 // Create PopplerDocument
299 gchar *doc_uri = g_filename_to_uri(uri, NULL, NULL);
300 if (doc_uri) {
301 _poppler_doc = poppler_document_new_from_file(doc_uri, NULL, NULL);
302 g_free(doc_uri);
303 }
304 #endif
306 // Set default preview size
307 _preview_width = 200;
308 _preview_height = 300;
310 // Init preview
311 _thumb_data = NULL;
312 _pageNumberSpin_adj->set_value(1.0);
313 _current_page = 1;
314 _setPreviewPage(_current_page);
316 set_default (*okbutton);
317 set_focus (*okbutton);
318 }
320 PdfImportDialog::~PdfImportDialog() {
321 #ifdef HAVE_POPPLER_CAIRO
322 if (_cairo_surface) {
323 cairo_surface_destroy(_cairo_surface);
324 }
325 if (_poppler_doc) {
326 g_object_unref(G_OBJECT(_poppler_doc));
327 }
328 #endif
329 if (_thumb_data) {
330 if (_render_thumb) {
331 delete _thumb_data;
332 } else {
333 gfree(_thumb_data);
334 }
335 }
336 }
338 bool PdfImportDialog::showDialog() {
339 show();
340 gint b = run();
341 hide();
342 if ( b == Gtk::RESPONSE_OK ) {
343 return TRUE;
344 } else {
345 return FALSE;
346 }
347 }
349 int PdfImportDialog::getSelectedPage() {
350 return _current_page;
351 }
353 /**
354 * \brief Retrieves the current settings into a repr which SvgBuilder will use
355 * for determining the behaviour desired by the user
356 */
357 void PdfImportDialog::getImportSettings(Inkscape::XML::Node *prefs) {
358 sp_repr_set_svg_double(prefs, "selectedPage", (double)_current_page);
359 if (_cropCheck->get_active()) {
360 Glib::ustring current_choice = _cropTypeCombo->get_active_text();
361 int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);
362 int i = 0;
363 for ( ; i < num_crop_choices ; i++ ) {
364 if ( current_choice == _(crop_setting_choices[i]) ) {
365 break;
366 }
367 }
368 sp_repr_set_svg_double(prefs, "cropTo", (double)i);
369 } else {
370 sp_repr_set_svg_double(prefs, "cropTo", -1.0);
371 }
372 sp_repr_set_svg_double(prefs, "approximationPrecision",
373 _fallbackPrecisionSlider->get_value());
374 if (_localFontsCheck->get_active()) {
375 prefs->setAttribute("localFonts", "1");
376 } else {
377 prefs->setAttribute("localFonts", "0");
378 }
379 if (_embedImagesCheck->get_active()) {
380 prefs->setAttribute("embedImages", "1");
381 } else {
382 prefs->setAttribute("embedImages", "0");
383 }
384 }
386 /**
387 * \brief Redisplay the comment on the current approximation precision setting
388 * Evenly divides the interval of possible values between the available labels.
389 */
390 void PdfImportDialog::_onPrecisionChanged() {
392 static Glib::ustring precision_comments[] = {
393 Glib::ustring(C_("PDF input precision", "rough")),
394 Glib::ustring(C_("PDF input precision", "medium")),
395 Glib::ustring(C_("PDF input precision", "fine")),
396 Glib::ustring(C_("PDF input precision", "very fine"))
397 };
399 double min = _fallbackPrecisionSlider_adj->get_lower();
400 double max = _fallbackPrecisionSlider_adj->get_upper();
401 int num_intervals = sizeof(precision_comments) / sizeof(precision_comments[0]);
402 double interval_len = ( max - min ) / (double)num_intervals;
403 double value = _fallbackPrecisionSlider_adj->get_value();
404 int comment_idx = (int)floor( ( value - min ) / interval_len );
405 _labelPrecisionComment->set_label(precision_comments[comment_idx]);
406 }
408 void PdfImportDialog::_onToggleCropping() {
409 _cropTypeCombo->set_sensitive(_cropCheck->get_active());
410 }
412 void PdfImportDialog::_onPageNumberChanged() {
413 int page = _pageNumberSpin->get_value_as_int();
414 _current_page = CLAMP(page, 1, _pdf_doc->getCatalog()->getNumPages());
415 _setPreviewPage(_current_page);
416 }
418 #ifdef HAVE_POPPLER_CAIRO
419 /**
420 * \brief Copies image data from a Cairo surface to a pixbuf
421 *
422 * Borrowed from libpoppler, from the file poppler-page.cc
423 * Copyright (C) 2005, Red Hat, Inc.
424 *
425 */
426 static void copy_cairo_surface_to_pixbuf (cairo_surface_t *surface,
427 unsigned char *data,
428 GdkPixbuf *pixbuf)
429 {
430 int cairo_width, cairo_height, cairo_rowstride;
431 unsigned char *pixbuf_data, *dst, *cairo_data;
432 int pixbuf_rowstride, pixbuf_n_channels;
433 unsigned int *src;
434 int x, y;
436 cairo_width = cairo_image_surface_get_width (surface);
437 cairo_height = cairo_image_surface_get_height (surface);
438 cairo_rowstride = cairo_width * 4;
439 cairo_data = data;
441 pixbuf_data = gdk_pixbuf_get_pixels (pixbuf);
442 pixbuf_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
443 pixbuf_n_channels = gdk_pixbuf_get_n_channels (pixbuf);
445 if (cairo_width > gdk_pixbuf_get_width (pixbuf))
446 cairo_width = gdk_pixbuf_get_width (pixbuf);
447 if (cairo_height > gdk_pixbuf_get_height (pixbuf))
448 cairo_height = gdk_pixbuf_get_height (pixbuf);
449 for (y = 0; y < cairo_height; y++)
450 {
451 src = (unsigned int *) (cairo_data + y * cairo_rowstride);
452 dst = pixbuf_data + y * pixbuf_rowstride;
453 for (x = 0; x < cairo_width; x++)
454 {
455 dst[0] = (*src >> 16) & 0xff;
456 dst[1] = (*src >> 8) & 0xff;
457 dst[2] = (*src >> 0) & 0xff;
458 if (pixbuf_n_channels == 4)
459 dst[3] = (*src >> 24) & 0xff;
460 dst += pixbuf_n_channels;
461 src++;
462 }
463 }
464 }
466 #endif
468 /**
469 * \brief Updates the preview area with the previously rendered thumbnail
470 */
471 bool PdfImportDialog::_onExposePreview(GdkEventExpose */*event*/) {
473 // Check if we have a thumbnail at all
474 if (!_thumb_data) {
475 return true;
476 }
478 // Create the pixbuf for the thumbnail
479 Glib::RefPtr<Gdk::Pixbuf> thumb;
480 if (_render_thumb) {
481 thumb = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true,
482 8, _thumb_width, _thumb_height);
483 } else {
484 thumb = Gdk::Pixbuf::create_from_data(_thumb_data, Gdk::COLORSPACE_RGB,
485 false, 8, _thumb_width, _thumb_height, _thumb_rowstride);
486 }
487 if (!thumb) {
488 return true;
489 }
491 // Set background to white
492 if (_render_thumb) {
493 thumb->fill(0xffffffff);
494 Glib::RefPtr<Gdk::Pixmap> back_pixmap = Gdk::Pixmap::create(
495 _previewArea->get_window(), _thumb_width, _thumb_height, -1);
496 if (!back_pixmap) {
497 return true;
498 }
499 back_pixmap->draw_pixbuf(Glib::RefPtr<Gdk::GC>(), thumb, 0, 0, 0, 0,
500 _thumb_width, _thumb_height,
501 Gdk::RGB_DITHER_NONE, 0, 0);
502 _previewArea->get_window()->set_back_pixmap(back_pixmap, false);
503 _previewArea->get_window()->clear();
504 }
505 #ifdef HAVE_POPPLER_CAIRO
506 // Copy the thumbnail image from the Cairo surface
507 if (_render_thumb) {
508 copy_cairo_surface_to_pixbuf(_cairo_surface, _thumb_data, thumb->gobj());
509 }
510 #endif
511 _previewArea->get_window()->draw_pixbuf(Glib::RefPtr<Gdk::GC>(), thumb,
512 0, 0, 0, _render_thumb ? 0 : 20,
513 -1, -1, Gdk::RGB_DITHER_NONE, 0, 0);
515 return true;
516 }
518 /**
519 * \brief Renders the given page's thumbnail using Cairo
520 */
521 void PdfImportDialog::_setPreviewPage(int page) {
523 _previewed_page = _pdf_doc->getCatalog()->getPage(page);
524 // Try to get a thumbnail from the PDF if possible
525 if (!_render_thumb) {
526 if (_thumb_data) {
527 gfree(_thumb_data);
528 _thumb_data = NULL;
529 }
530 if (!_previewed_page->loadThumb(&_thumb_data,
531 &_thumb_width, &_thumb_height, &_thumb_rowstride)) {
532 return;
533 }
534 // Redraw preview area
535 _previewArea->set_size_request(_thumb_width, _thumb_height + 20);
536 _previewArea->queue_draw();
537 return;
538 }
539 #ifdef HAVE_POPPLER_CAIRO
540 // Get page size by accounting for rotation
541 double width, height;
542 int rotate = _previewed_page->getRotate();
543 if ( rotate == 90 || rotate == 270 ) {
544 height = _previewed_page->getCropWidth();
545 width = _previewed_page->getCropHeight();
546 } else {
547 width = _previewed_page->getCropWidth();
548 height = _previewed_page->getCropHeight();
549 }
550 // Calculate the needed scaling for the page
551 double scale_x = (double)_preview_width / width;
552 double scale_y = (double)_preview_height / height;
553 double scale_factor = ( scale_x > scale_y ) ? scale_y : scale_x;
554 // Create new Cairo surface
555 _thumb_width = (int)ceil( width * scale_factor );
556 _thumb_height = (int)ceil( height * scale_factor );
557 _thumb_rowstride = _thumb_width * 4;
558 if (_thumb_data) {
559 delete _thumb_data;
560 }
561 _thumb_data = new unsigned char[ _thumb_rowstride * _thumb_height ];
562 if (_cairo_surface) {
563 cairo_surface_destroy(_cairo_surface);
564 }
565 _cairo_surface = cairo_image_surface_create_for_data(_thumb_data,
566 CAIRO_FORMAT_ARGB32, _thumb_width, _thumb_height, _thumb_rowstride);
567 cairo_t *cr = cairo_create(_cairo_surface);
568 cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); // Set fill color to white
569 cairo_paint(cr); // Clear it
570 cairo_scale(cr, scale_factor, scale_factor); // Use Cairo for resizing the image
571 // Render page
572 if (_poppler_doc != NULL) {
573 PopplerPage *poppler_page = poppler_document_get_page(_poppler_doc, page-1);
574 poppler_page_render(poppler_page, cr);
575 g_object_unref(G_OBJECT(poppler_page));
576 }
577 // Clean up
578 cairo_destroy(cr);
579 // Redraw preview area
580 _previewArea->set_size_request(_preview_width, _preview_height);
581 _previewArea->queue_draw();
582 #endif
583 }
585 ////////////////////////////////////////////////////////////////////////////////
587 /**
588 * Parses the selected page of the given PDF document using PdfParser.
589 */
590 SPDocument *
591 PdfInput::open(::Inkscape::Extension::Input * /*mod*/, const gchar * uri) {
593 // Initialize the globalParams variable for poppler
594 if (!globalParams) {
595 globalParams = new GlobalParams();
596 }
597 // poppler does not use glib g_open. So on win32 we must use unicode call. code was copied from glib gstdio.c
598 #ifndef WIN32
599 GooString *filename_goo = new GooString(uri);
600 PDFDoc *pdf_doc = new PDFDoc(filename_goo, NULL, NULL, NULL); // TODO: Could ask for password
601 //delete filename_goo;
602 #else
603 wchar_t *wfilename = (wchar_t*)g_utf8_to_utf16 (uri, -1, NULL, NULL, NULL);
605 if (wfilename == NULL) {
606 return NULL;
607 }
609 PDFDoc *pdf_doc = new PDFDoc(wfilename, wcslen(wfilename), NULL, NULL, NULL); // TODO: Could ask for password
610 g_free (wfilename);
611 #endif
613 if (!pdf_doc->isOk()) {
614 int error = pdf_doc->getErrorCode();
615 delete pdf_doc;
616 if (error == errEncrypted) {
617 g_message("Document is encrypted.");
618 } else if (error == errOpenFile) {
619 g_message("couldn't open the PDF file.");
620 } else if (error == errBadCatalog) {
621 g_message("couldn't read the page catalog.");
622 } else if (error == errDamaged) {
623 g_message("PDF file was damaged and couldn't be repaired.");
624 } else if (error == errHighlightFile) {
625 g_message("nonexistent or invalid highlight file.");
626 } else if (error == errBadPrinter) {
627 g_message("invalid printer.");
628 } else if (error == errPrinting) {
629 g_message("Error during printing.");
630 } else if (error == errPermission) {
631 g_message("PDF file does not allow that operation.");
632 } else if (error == errBadPageNum) {
633 g_message("invalid page number.");
634 } else if (error == errFileIO) {
635 g_message("file IO error.");
636 } else {
637 g_message("Failed to load document from data (error %d)", error);
638 }
640 return NULL;
641 }
643 PdfImportDialog *dlg = NULL;
644 if (Inkscape::NSApplication::Application::getUseGui()) {
645 dlg = new PdfImportDialog(pdf_doc, uri);
646 if (!dlg->showDialog()) {
647 delete dlg;
648 delete pdf_doc;
649 return NULL;
650 }
651 }
653 // Get needed page
654 int page_num;
655 if (dlg)
656 page_num = dlg->getSelectedPage();
657 else
658 page_num = 1;
659 Catalog *catalog = pdf_doc->getCatalog();
660 Page *page = catalog->getPage(page_num);
662 SPDocument *doc = sp_document_new(NULL, TRUE, TRUE);
663 bool saved = sp_document_get_undo_sensitive(doc);
664 sp_document_set_undo_sensitive(doc, false); // No need to undo in this temporary document
666 // Create builder
667 gchar *docname = g_path_get_basename(uri);
668 gchar *dot = g_strrstr(docname, ".");
669 if (dot) {
670 *dot = 0;
671 }
672 SvgBuilder *builder = new SvgBuilder(doc, docname, pdf_doc->getXRef());
674 // Get preferences
675 Inkscape::XML::Node *prefs = builder->getPreferences();
676 if (dlg)
677 dlg->getImportSettings(prefs);
679 // Apply crop settings
680 PDFRectangle *clipToBox = NULL;
681 double crop_setting;
682 sp_repr_get_double(prefs, "cropTo", &crop_setting);
683 if ( crop_setting >= 0.0 ) { // Do page clipping
684 int crop_choice = (int)crop_setting;
685 switch (crop_choice) {
686 case 0: // Media box
687 clipToBox = page->getMediaBox();
688 break;
689 case 1: // Crop box
690 clipToBox = page->getCropBox();
691 break;
692 case 2: // Bleed box
693 clipToBox = page->getBleedBox();
694 break;
695 case 3: // Trim box
696 clipToBox = page->getTrimBox();
697 break;
698 case 4: // Art box
699 clipToBox = page->getArtBox();
700 break;
701 default:
702 break;
703 }
704 }
706 // Create parser
707 PdfParser *pdf_parser = new PdfParser(pdf_doc->getXRef(), builder, page_num-1, page->getRotate(),
708 page->getResourceDict(), page->getCropBox(), clipToBox);
710 // Set up approximation precision for parser
711 double color_delta;
712 sp_repr_get_double(prefs, "approximationPrecision", &color_delta);
713 if ( color_delta <= 0.0 ) {
714 color_delta = 1.0 / 2.0;
715 } else {
716 color_delta = 1.0 / color_delta;
717 }
718 for ( int i = 1 ; i <= pdfNumShadingTypes ; i++ ) {
719 pdf_parser->setApproximationPrecision(i, color_delta, 6);
720 }
722 // Parse the document structure
723 Object obj;
724 page->getContents(&obj);
725 if (!obj.isNull()) {
726 pdf_parser->parse(&obj);
727 }
729 // Cleanup
730 obj.free();
731 delete pdf_parser;
732 delete builder;
733 g_free(docname);
734 delete pdf_doc;
735 delete dlg;
737 // Restore undo
738 sp_document_set_undo_sensitive(doc, saved);
740 return doc;
741 }
743 #include "../clear-n_.h"
745 void
746 PdfInput::init(void) {
747 Inkscape::Extension::Extension * ext;
749 /* PDF in */
750 ext = Inkscape::Extension::build_from_mem(
751 "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
752 "<name>" N_("PDF Input") "</name>\n"
753 "<id>org.inkscape.input.pdf</id>\n"
754 "<input>\n"
755 "<extension>.pdf</extension>\n"
756 "<mimetype>application/pdf</mimetype>\n"
757 "<filetypename>" N_("Adobe PDF (*.pdf)") "</filetypename>\n"
758 "<filetypetooltip>" N_("Adobe Portable Document Format") "</filetypetooltip>\n"
759 "</input>\n"
760 "</inkscape-extension>", new PdfInput());
762 /* AI in */
763 ext = Inkscape::Extension::build_from_mem(
764 "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
765 "<name>" N_("AI Input") "</name>\n"
766 "<id>org.inkscape.input.ai</id>\n"
767 "<input>\n"
768 "<extension>.ai</extension>\n"
769 "<mimetype>image/x-adobe-illustrator</mimetype>\n"
770 "<filetypename>" N_("Adobe Illustrator 9.0 and above (*.ai)") "</filetypename>\n"
771 "<filetypetooltip>" N_("Open files saved in Adobe Illustrator 9.0 and newer versions") "</filetypetooltip>\n"
772 "</input>\n"
773 "</inkscape-extension>", new PdfInput());
774 } // init
776 } } } /* namespace Inkscape, Extension, Implementation */
778 #endif /* HAVE_POPPLER */
780 /*
781 Local Variables:
782 mode:c++
783 c-file-style:"stroustrup"
784 c-file-offsets:((innamespace . 0)(inline-open . 0))
785 indent-tabs-mode:nil
786 fill-column:99
787 End:
788 */
789 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :