5909N/A /*

5909N/A

5909N/A#ifdef HAVE_CONFIG_H

5909N/A# include <config.h>

5909N/A#endif

5909N/A

5909N/A#ifdef HAVE_POPPLER_GLIB

5909N/A#ifdef HAVE_POPPLER_CAIRO

5909N/A

5909N/A#include "pdf-input-cairo.h"

5909N/A#include "extension/system.h"

5909N/A#include "extension/input.h"

5909N/A#include "dialogs/dialog-events.h"

5909N/A#include "document.h"

5909N/A

5909N/A#include "inkscape.h"

5909N/A

5909N/A#include <cairo-svg.h>

5909N/A#include <poppler/glib/poppler.h>

5909N/A#include <poppler/glib/poppler-document.h>

5909N/A#include <poppler/glib/poppler-page.h>

5909N/A

5909N/A#include "ui/widget/spinbutton.h"

5909N/A#include "ui/widget/frame.h"

5909N/A

5909N/A#include <gdkmm/general.h>

5909N/A

5909N/Anamespace Inkscape {

5909N/Anamespace Extension {

5909N/Anamespace Internal {

5909N/A

5909N/A

5909N/A

5994N/Astatic const gchar * crop_setting_choices[] = {

5994N/A //TRANSLATORS: The following are document crop settings for PDF import

5994N/A // more info: http://www.acrobatusers.com/tech_corners/javascript_corner/tips/2006/page_bounds/

5994N/A N_("media box"),

5994N/A N_("crop box"),

5909N/A N_("trim box"),

5909N/A N_("bleed box"),

5909N/A N_("art box")

5909N/A};

5909N/A

5909N/APdfImportCairoDialog::PdfImportCairoDialog(PopplerDocument *doc)

5909N/A{

5909N/A if(doc == NULL) {

5909N/A // if there is no document, throw exception here

5909N/A throw;

5909N/A }

5909N/A

5909N/A _poppler_doc = doc;

5909N/A

5909N/A cancelbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-cancel")));

5909N/A okbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-ok")));

5909N/A _labelSelect = Gtk::manage(new class Gtk::Label(_("Select page:")));

5909N/A

5909N/A // Page number

5909N/A int num_pages = poppler_document_get_n_pages(_poppler_doc);

5909N/A Gtk::Adjustment *_pageNumberSpin_adj = Gtk::manage(new class Gtk::Adjustment(1, 1, num_pages, 1, 10, 0));

5994N/A _pageNumberSpin = Gtk::manage(new class Inkscape::UI::Widget::SpinButton(*_pageNumberSpin_adj, 1, 1));

5994N/A _labelTotalPages = Gtk::manage(new class Gtk::Label());

5994N/A hbox2 = Gtk::manage(new class Gtk::HBox(false, 0));

5994N/A // Disable the page selector when there's only one page

5994N/A if ( num_pages == 1 ) {

5994N/A _pageNumberSpin->set_sensitive(false);

5994N/A } else {

5994N/A // Display total number of pages

5909N/A gchar *label_text = g_strdup_printf(_("out of %i"), num_pages);

5909N/A _labelTotalPages->set_label(label_text);

5909N/A g_free(label_text);

5909N/A }

5909N/A

5909N/A // Crop settings

5909N/A _cropCheck = Gtk::manage(new class Gtk::CheckButton(_("Clip to:")));

5909N/A _cropTypeCombo = Gtk::manage(new class Gtk::ComboBoxText());

5909N/A int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);

5909N/A for ( int i = 0 ; i < num_crop_choices ; i++ ) {

5909N/A#if WITH_GTKMM_2_24

5909N/A _cropTypeCombo->append(_(crop_setting_choices[i]));

5909N/A#else

5909N/A _cropTypeCombo->append_text(_(crop_setting_choices[i]));

5909N/A#endif

5909N/A }

5994N/A _cropTypeCombo->set_active_text(_(crop_setting_choices[0]));

5909N/A _cropTypeCombo->set_sensitive(false);

5909N/A

5909N/A hbox3 = Gtk::manage(new class Gtk::HBox(false, 4));

5909N/A vbox2 = Gtk::manage(new class Gtk::VBox(false, 4));

5909N/A _pageSettingsFrame = Gtk::manage(new class Inkscape::UI::Widget::Frame(_("Page settings")));

5909N/A _labelPrecision = Gtk::manage(new class Gtk::Label(_("Precision of approximating gradient meshes:")));

5909N/A _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.")));

5909N/A

5909N/A _fallbackPrecisionSlider_adj = Gtk::manage(new class Gtk::Adjustment(2, 1, 256, 1, 10, 10));

5909N/A _fallbackPrecisionSlider = Gtk::manage(new class Gtk::HScale(*_fallbackPrecisionSlider_adj));

5909N/A _fallbackPrecisionSlider->set_value(2.0);

5909N/A _labelPrecisionComment = Gtk::manage(new class Gtk::Label(_("rough")));

5994N/A hbox6 = Gtk::manage(new class Gtk::HBox(false, 4));

5909N/A

5909N/A // Text options

5909N/A _labelText = Gtk::manage(new class Gtk::Label(_("Text handling:")));

5909N/A _textHandlingCombo = Gtk::manage(new class Gtk::ComboBoxText());

5909N/A#if WITH_GTKMM_2_24

5909N/A _textHandlingCombo->append(_("Import text as text"));

5909N/A#else

5909N/A _textHandlingCombo->append_text(_("Import text as text"));

5909N/A#endif

5909N/A _textHandlingCombo->set_active_text(_("Import text as text"));

5909N/A _localFontsCheck = Gtk::manage(new class Gtk::CheckButton(_("Replace PDF fonts by closest-named installed fonts")));

5909N/A

5909N/A hbox5 = Gtk::manage(new class Gtk::HBox(false, 4));

5909N/A _embedImagesCheck = Gtk::manage(new class Gtk::CheckButton(_("Embed images")));

5909N/A vbox3 = Gtk::manage(new class Gtk::VBox(false, 4));

5994N/A _importSettingsFrame = Gtk::manage(new class Inkscape::UI::Widget::Frame(_("Import settings")));

5994N/A vbox1 = Gtk::manage(new class Gtk::VBox(false, 4));

5994N/A _previewArea = Gtk::manage(new class Gtk::DrawingArea());

5994N/A hbox1 = Gtk::manage(new class Gtk::HBox(false, 4));

5994N/A cancelbutton->set_can_focus();

5909N/A cancelbutton->set_can_default();

5909N/A cancelbutton->set_relief(Gtk::RELIEF_NORMAL);

5909N/A okbutton->set_can_focus();

5909N/A okbutton->set_can_default();

5909N/A okbutton->set_relief(Gtk::RELIEF_NORMAL);

5909N/A this->get_action_area()->property_layout_style().set_value(Gtk::BUTTONBOX_END);

5909N/A _labelSelect->set_alignment(0.5,0.5);

5909N/A _labelSelect->set_padding(4,0);

5909N/A _labelSelect->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelSelect->set_line_wrap(false);

5909N/A _labelSelect->set_use_markup(false);

5909N/A _labelSelect->set_selectable(false);

5909N/A _pageNumberSpin->set_can_focus();

5909N/A _pageNumberSpin->set_update_policy(Gtk::UPDATE_ALWAYS);

5909N/A _pageNumberSpin->set_numeric(true);

5909N/A _pageNumberSpin->set_digits(0);

5909N/A _pageNumberSpin->set_wrap(false);

5909N/A _labelTotalPages->set_alignment(0.5,0.5);

5909N/A _labelTotalPages->set_padding(4,0);

5909N/A _labelTotalPages->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelTotalPages->set_line_wrap(false);

5909N/A _labelTotalPages->set_use_markup(false);

5909N/A _labelTotalPages->set_selectable(false);

5909N/A hbox2->pack_start(*_labelSelect, Gtk::PACK_SHRINK, 4);

5909N/A hbox2->pack_start(*_pageNumberSpin, Gtk::PACK_SHRINK, 4);

5909N/A hbox2->pack_start(*_labelTotalPages, Gtk::PACK_SHRINK, 4);

5909N/A _cropCheck->set_can_focus();

5909N/A _cropCheck->set_relief(Gtk::RELIEF_NORMAL);

5909N/A _cropCheck->set_mode(true);

5909N/A _cropCheck->set_active(false);

5909N/A _cropTypeCombo->set_border_width(1);

5909N/A hbox3->pack_start(*_cropCheck, Gtk::PACK_SHRINK, 4);

5909N/A hbox3->pack_start(*_cropTypeCombo, Gtk::PACK_SHRINK, 0);

5909N/A vbox2->pack_start(*hbox2);

5909N/A vbox2->pack_start(*hbox3);

5909N/A _pageSettingsFrame->add(*vbox2);

5909N/A _pageSettingsFrame->set_border_width(4);

5909N/A _labelPrecision->set_alignment(0,0.5);

5909N/A _labelPrecision->set_padding(4,0);

5909N/A _labelPrecision->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelPrecision->set_line_wrap(true);

5909N/A _labelPrecision->set_use_markup(false);

5909N/A _labelPrecision->set_selectable(false);

5909N/A _labelPrecisionWarning->set_alignment(0,0.5);

5909N/A _labelPrecisionWarning->set_padding(4,0);

5909N/A _labelPrecisionWarning->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelPrecisionWarning->set_line_wrap(true);

5909N/A _labelPrecisionWarning->set_use_markup(true);

5909N/A _labelPrecisionWarning->set_selectable(false);

5909N/A _fallbackPrecisionSlider->set_size_request(180,-1);

5909N/A _fallbackPrecisionSlider->set_can_focus();

5909N/A _fallbackPrecisionSlider->set_inverted(false);

5909N/A _fallbackPrecisionSlider->set_digits(1);

5909N/A _fallbackPrecisionSlider->set_draw_value(true);

5909N/A _fallbackPrecisionSlider->set_value_pos(Gtk::POS_TOP);

5909N/A _labelPrecisionComment->set_size_request(90,-1);

5909N/A _labelPrecisionComment->set_alignment(0.5,0.5);

5909N/A _labelPrecisionComment->set_padding(4,0);

5909N/A _labelPrecisionComment->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelPrecisionComment->set_line_wrap(false);

5909N/A _labelPrecisionComment->set_use_markup(false);

5909N/A _labelPrecisionComment->set_selectable(false);

5909N/A hbox6->pack_start(*_fallbackPrecisionSlider, Gtk::PACK_SHRINK, 4);

5909N/A hbox6->pack_start(*_labelPrecisionComment, Gtk::PACK_SHRINK, 0);

5909N/A _labelText->set_alignment(0.5,0.5);

5909N/A _labelText->set_padding(4,0);

5909N/A _labelText->set_justify(Gtk::JUSTIFY_LEFT);

5909N/A _labelText->set_line_wrap(false);

5909N/A _labelText->set_use_markup(false);

5909N/A _labelText->set_selectable(false);

5909N/A hbox5->pack_start(*_labelText, Gtk::PACK_SHRINK, 0);

5909N/A hbox5->pack_start(*_textHandlingCombo, Gtk::PACK_SHRINK, 0);

5909N/A _localFontsCheck->set_can_focus();

5909N/A _localFontsCheck->set_relief(Gtk::RELIEF_NORMAL);

5909N/A _localFontsCheck->set_mode(true);

5909N/A _localFontsCheck->set_active(true);

5909N/A _embedImagesCheck->set_can_focus();

5909N/A _embedImagesCheck->set_relief(Gtk::RELIEF_NORMAL);

5909N/A _embedImagesCheck->set_mode(true);

5909N/A _embedImagesCheck->set_active(true);

5909N/A vbox3->pack_start(*_labelPrecision, Gtk::PACK_SHRINK, 0);

5909N/A vbox3->pack_start(*hbox6, Gtk::PACK_SHRINK, 0);

5909N/A vbox3->pack_start(*_labelPrecisionWarning, Gtk::PACK_SHRINK, 0);

5909N/A vbox3->pack_start(*hbox5, Gtk::PACK_SHRINK, 4);

5909N/A vbox3->pack_start(*_localFontsCheck, Gtk::PACK_SHRINK, 0);

5909N/A vbox3->pack_start(*_embedImagesCheck, Gtk::PACK_SHRINK, 0);

5909N/A _importSettingsFrame->add(*vbox3);

5909N/A _importSettingsFrame->set_border_width(4);

5909N/A vbox1->pack_start(*_pageSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);

5909N/A vbox1->pack_start(*_importSettingsFrame, Gtk::PACK_EXPAND_PADDING, 0);

5909N/A hbox1->pack_start(*vbox1);

5909N/A hbox1->pack_start(*_previewArea, Gtk::PACK_EXPAND_WIDGET, 4);

5909N/A this->get_vbox()->set_homogeneous(false);

5909N/A this->get_vbox()->set_spacing(0);

5909N/A this->get_vbox()->pack_start(*hbox1);

5909N/A this->set_title(_("PDF Import Settings"));

5909N/A this->set_modal(true);

5909N/A sp_transientize((GtkWidget *)this->gobj()); //Make transient

5909N/A this->property_window_position().set_value(Gtk::WIN_POS_NONE);

5909N/A this->set_resizable(true);

5909N/A this->property_destroy_with_parent().set_value(false);

5909N/A this->set_has_separator(true);

5909N/A this->add_action_widget(*cancelbutton, -6);

5909N/A this->add_action_widget(*okbutton, -5);

5909N/A cancelbutton->show();

5909N/A okbutton->show();

5909N/A _labelSelect->show();

5909N/A _pageNumberSpin->show();

5909N/A _labelTotalPages->show();

5909N/A hbox2->show();

5909N/A _cropCheck->show();

5909N/A _cropTypeCombo->show();

5909N/A hbox3->show();

5909N/A vbox2->show();

5909N/A _pageSettingsFrame->show();

5909N/A _labelPrecision->show();

5909N/A _labelPrecisionWarning->show();

5909N/A _fallbackPrecisionSlider->show();

5909N/A _labelPrecisionComment->show();

5909N/A hbox6->show();

5909N/A _labelText->show();

5909N/A _textHandlingCombo->show();

5909N/A hbox5->show();

5909N/A _localFontsCheck->show();

5909N/A _embedImagesCheck->show();

5909N/A vbox3->show();

5909N/A _importSettingsFrame->show();

5909N/A vbox1->show();

5909N/A _previewArea->show();

5909N/A hbox1->show();

5909N/A

5909N/A // Connect signals

5909N/A _previewArea->signal_expose_event().connect(sigc::mem_fun(*this, &PdfImportCairoDialog::_onExposePreview));

5909N/A _pageNumberSpin_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportCairoDialog::_onPageNumberChanged));

5909N/A _cropCheck->signal_toggled().connect(sigc::mem_fun(*this, &PdfImportCairoDialog::_onToggleCropping));

5909N/A _fallbackPrecisionSlider_adj->signal_value_changed().connect(sigc::mem_fun(*this, &PdfImportCairoDialog::_onPrecisionChanged));

5909N/A

5909N/A _render_thumb = false;

5909N/A _cairo_surface = NULL;

5909N/A _render_thumb = true;

5909N/A

5909N/A // Set default preview size

5909N/A _preview_width = 200;

5909N/A _preview_height = 300;

5909N/A

5909N/A // Init preview

5909N/A _thumb_data = NULL;

5909N/A _pageNumberSpin_adj->set_value(1.0);

5909N/A _current_page = 1;

5909N/A _setPreviewPage(_current_page);

5909N/A

5909N/A set_default (*okbutton);

5909N/A set_focus (*okbutton);

5909N/A}

5909N/A

5909N/APdfImportCairoDialog::~PdfImportCairoDialog() {

5909N/A if (_cairo_surface) {

5909N/A cairo_surface_destroy(_cairo_surface);

5909N/A }

5909N/A if (_thumb_data) {

5909N/A if (_render_thumb) {

5909N/A delete _thumb_data;

5909N/A } else {

5909N/A // -->gfree(_thumb_data);

5909N/A delete _thumb_data;

5909N/A }

5909N/A }

5909N/A}

5909N/A

5909N/Abool PdfImportCairoDialog::showDialog() {

5909N/A show();

5909N/A gint b = run();

5909N/A hide();

5909N/A if ( b == Gtk::RESPONSE_OK ) {

5909N/A return TRUE;

5909N/A } else {

5909N/A return FALSE;

5909N/A }

5909N/A}

5909N/A

5909N/Aint PdfImportCairoDialog::getSelectedPage() {

5909N/A return _current_page;

5909N/A}

5909N/A

5909N/Avoid PdfImportCairoDialog::getImportSettings(Inkscape::XML::Node *prefs) {

5909N/A sp_repr_set_svg_double(prefs, "selectedPage", (double)_current_page);

5909N/A if (_cropCheck->get_active()) {

5909N/A Glib::ustring current_choice = _cropTypeCombo->get_active_text();

5909N/A int num_crop_choices = sizeof(crop_setting_choices) / sizeof(crop_setting_choices[0]);

5909N/A int i = 0;

5909N/A for ( ; i < num_crop_choices ; i++ ) {

5909N/A if ( current_choice == _(crop_setting_choices[i]) ) {

5909N/A break;

5909N/A }

5909N/A }

5909N/A sp_repr_set_svg_double(prefs, "cropTo", (double)i);

5909N/A } else {

5909N/A sp_repr_set_svg_double(prefs, "cropTo", -1.0);

5909N/A }

5909N/A sp_repr_set_svg_double(prefs, "approximationPrecision",

5909N/A _fallbackPrecisionSlider->get_value());

5909N/A if (_localFontsCheck->get_active()) {

5909N/A prefs->setAttribute("localFonts", "1");

5909N/A } else {

5909N/A prefs->setAttribute("localFonts", "0");

5909N/A }

5909N/A if (_embedImagesCheck->get_active()) {

5909N/A prefs->setAttribute("embedImages", "1");

5909N/A } else {

5909N/A prefs->setAttribute("embedImages", "0");

5909N/A }

5909N/A}

5909N/A

5909N/Avoid PdfImportCairoDialog::_onPrecisionChanged() {

5909N/A

5909N/A static Glib::ustring precision_comments[] = {

5909N/A Glib::ustring(C_("PDF input precision", "rough")),

5909N/A Glib::ustring(C_("PDF input precision", "medium")),

5909N/A Glib::ustring(C_("PDF input precision", "fine")),

5909N/A Glib::ustring(C_("PDF input precision", "very fine"))

5909N/A };

5909N/A

5909N/A double min = _fallbackPrecisionSlider_adj->get_lower();

5909N/A double max = _fallbackPrecisionSlider_adj->get_upper();

5909N/A int num_intervals = sizeof(precision_comments) / sizeof(precision_comments[0]);

5909N/A double interval_len = ( max - min ) / (double)num_intervals;

5909N/A double value = _fallbackPrecisionSlider_adj->get_value();

5909N/A int comment_idx = (int)floor( ( value - min ) / interval_len );

5909N/A _labelPrecisionComment->set_label(precision_comments[comment_idx]);

5909N/A}

5909N/A

5909N/Avoid PdfImportCairoDialog::_onToggleCropping() {

5909N/A _cropTypeCombo->set_sensitive(_cropCheck->get_active());

5909N/A}

5909N/A

5909N/Avoid PdfImportCairoDialog::_onPageNumberChanged() {

5909N/A int page = _pageNumberSpin->get_value_as_int();

5909N/A _current_page = CLAMP(page, 1, poppler_document_get_n_pages(_poppler_doc));

5909N/A _setPreviewPage(_current_page);

5909N/A}

5909N/A

5909N/Astatic void copy_cairo_surface_to_pixbuf (cairo_surface_t *surface,

5909N/A unsigned char *data,

5909N/A GdkPixbuf *pixbuf)

5909N/A{

5909N/A int cairo_width, cairo_height, cairo_rowstride;

5909N/A unsigned char *pixbuf_data, *dst, *cairo_data;

5909N/A int pixbuf_rowstride, pixbuf_n_channels;

5909N/A unsigned int *src;

5909N/A int x, y;

5909N/A

5909N/A cairo_width = cairo_image_surface_get_width (surface);

5909N/A cairo_height = cairo_image_surface_get_height (surface);

5909N/A cairo_rowstride = cairo_width * 4;

5909N/A cairo_data = data;

5909N/A

5909N/A pixbuf_data = gdk_pixbuf_get_pixels (pixbuf);

5909N/A pixbuf_rowstride = gdk_pixbuf_get_rowstride (pixbuf);

5909N/A pixbuf_n_channels = gdk_pixbuf_get_n_channels (pixbuf);

5909N/A

5909N/A if (cairo_width > gdk_pixbuf_get_width (pixbuf))

5909N/A cairo_width = gdk_pixbuf_get_width (pixbuf);

5909N/A if (cairo_height > gdk_pixbuf_get_height (pixbuf))

5909N/A cairo_height = gdk_pixbuf_get_height (pixbuf);

5909N/A for (y = 0; y < cairo_height; y++)

5909N/A {

5909N/A src = (unsigned int *) (cairo_data + y * cairo_rowstride);

5909N/A dst = pixbuf_data + y * pixbuf_rowstride;

5909N/A for (x = 0; x < cairo_width; x++)

5909N/A {

5909N/A dst[0] = (*src >> 16) & 0xff;

5909N/A dst[1] = (*src >> 8) & 0xff;

5909N/A dst[2] = (*src >> 0) & 0xff;

5909N/A if (pixbuf_n_channels == 4)

5909N/A dst[3] = (*src >> 24) & 0xff;

5909N/A dst += pixbuf_n_channels;

5909N/A src++;

5909N/A }

5909N/A }

5909N/A}

5909N/A

bool PdfImportCairoDialog::_onExposePreview(GdkEventExpose */*event*/) {

// Check if we have a thumbnail at all

if (!_thumb_data) {

return true;

}

// Create the pixbuf for the thumbnail

Glib::RefPtr<Gdk::Pixbuf> thumb;

if (_render_thumb) {

thumb = Gdk::Pixbuf::create(Gdk::COLORSPACE_RGB, true,

8, _thumb_width, _thumb_height);

} else {

thumb = Gdk::Pixbuf::create_from_data(_thumb_data, Gdk::COLORSPACE_RGB,

false, 8, _thumb_width, _thumb_height, _thumb_rowstride);

}

if (!thumb) {

return true;

}

// Set background to white

if (_render_thumb) {

thumb->fill(0xffffffff);

Glib::RefPtr<Gdk::Pixmap> back_pixmap = Gdk::Pixmap::create(

_previewArea->get_window(), _thumb_width, _thumb_height, -1);

if (!back_pixmap) {

return true;

}

Cairo::RefPtr<Cairo::Context> cr = back_pixmap->create_cairo_context();

Gdk::Cairo::set_source_pixbuf(cr, thumb, 0, 0);

cr->paint();

_previewArea->get_window()->set_back_pixmap(back_pixmap, false);

_previewArea->get_window()->clear();

}

// Copy the thumbnail image from the Cairo surface

if (_render_thumb) {

copy_cairo_surface_to_pixbuf(_cairo_surface, _thumb_data, thumb->gobj());

}

Cairo::RefPtr<Cairo::Context> cr = _previewArea->get_window()->create_cairo_context();

Gdk::Cairo::set_source_pixbuf(cr, thumb, 0, _render_thumb ? 0 : 20);

cr->paint();

return true;

}

void PdfImportCairoDialog::_setPreviewPage(int page) {

PopplerPage *_previewed_page = poppler_document_get_page(_poppler_doc, page);

// Try to get a thumbnail from the PDF if possible

if (!_render_thumb) {

if (_thumb_data) {

// --> gfree(_thumb_data);

free(_thumb_data);

_thumb_data = NULL;

}

// Redraw preview area

_previewArea->set_size_request(_thumb_width, _thumb_height + 20);

_previewArea->queue_draw();

return;

}

// Get page size by accounting for rotation

double width, height;

// --> int rotate = _previewed_page->getRotate();

int rotate = 0;

if ( rotate == 90 || rotate == 270 ) {

} else {

poppler_page_get_size (_previewed_page, &width, &height);

}

// Calculate the needed scaling for the page

double scale_x = (double)_preview_width / width;

double scale_y = (double)_preview_height / height;

double scale_factor = ( scale_x > scale_y ) ? scale_y : scale_x;

// Create new Cairo surface

_thumb_width = (int)ceil( width * scale_factor );

_thumb_height = (int)ceil( height * scale_factor );

_thumb_rowstride = _thumb_width * 4;

if (_thumb_data) {

delete _thumb_data;

}

_thumb_data = new unsigned char[ _thumb_rowstride * _thumb_height ];

if (_cairo_surface) {

cairo_surface_destroy(_cairo_surface);

}

_cairo_surface = cairo_image_surface_create_for_data(_thumb_data,

CAIRO_FORMAT_ARGB32, _thumb_width, _thumb_height, _thumb_rowstride);

cairo_t *cr = cairo_create(_cairo_surface);

cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); // Set fill color to white

cairo_paint(cr); // Clear it

cairo_scale(cr, scale_factor, scale_factor); // Use Cairo for resizing the image

// Render page

if (_poppler_doc != NULL) {

PopplerPage *poppler_page = poppler_document_get_page(_poppler_doc, page - 1);

poppler_page_render(poppler_page, cr);

g_object_unref(G_OBJECT(poppler_page));

}

// Clean up

cairo_destroy(cr);

// Redraw preview area

_previewArea->set_size_request(_preview_width, _preview_height);

_previewArea->queue_draw();

}

static cairo_status_t _write_ustring_cb(void *closure, const unsigned char *data, unsigned int length);

SPDocument *

PdfInputCairo::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri) {

g_message("Attempting to open using PdfInputCairo\n");

gchar* filename_uri = g_filename_to_uri(uri, NULL, NULL);

GError *error = NULL;

/// @todo handle passwort

/// @todo check if win32 unicode needs special attention

PopplerDocument* document = poppler_document_new_from_file(filename_uri, NULL, &error);

if(error != NULL) {

g_message("Unable to read file: %s\n", error->message);

g_error_free (error);

}

if (document == NULL) {

return NULL;

}

// create and show the import dialog

PdfImportCairoDialog *dlg = NULL;

if (inkscape_use_gui()) {

dlg = new PdfImportCairoDialog(document);

if (!dlg->showDialog()) {

delete dlg;

return NULL;

}

}

// Get needed page

int page_num;

if (dlg) {

page_num = dlg->getSelectedPage();

delete dlg;

}

else

page_num = 1;

double width, height;

PopplerPage* page = poppler_document_get_page(document, page_num - 1);

poppler_page_get_size(page, &width, &height);

Glib::ustring* output = new Glib::ustring("");

cairo_surface_t* surface = cairo_svg_surface_create_for_stream(Inkscape::Extension::Internal::_write_ustring_cb,

output, width, height);

cairo_t* cr = cairo_create(surface);

poppler_page_render(page, cr);

cairo_show_page(cr);

cairo_destroy(cr);

cairo_surface_destroy(surface);

SPDocument * doc = SPDocument::createNewDocFromMem(output->c_str(), output->length(), TRUE);

delete output;

g_object_unref(page);

g_object_unref(document);

return doc;

}

static cairo_status_t

_write_ustring_cb(void *closure, const unsigned char *data, unsigned int length)

{

Glib::ustring* stream = (Glib::ustring*)closure;

stream->append((const char*)data, length);

return CAIRO_STATUS_SUCCESS;

}

#include "clear-n_.h"

PdfInputCairo::init(void) {

Inkscape::Extension::Extension * ext;

ext = Inkscape::Extension::build_from_mem(

"<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"

"<name>PDF Input</name>\n"

"<id>org.inkscape.input.cairo-pdf</id>\n"

"<input>\n"

"<extension>.pdf</extension>\n"

"<mimetype>application/pdf</mimetype>\n"

"<filetypename>Adobe PDF via poppler-cairo (*.pdf)</filetypename>\n"

"<filetypetooltip>PDF Document</filetypetooltip>\n"

"</input>\n"

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

} // init

} } } /* namespace Inkscape, Extension, Implementation */

#endif /* HAVE_POPPLER_CAIRO */

#endif /* HAVE_POPPLER_GLIB */