Add support for libcdr

(bzr r12059.1.1)

1 files changed, 293 insertions, 0 deletions

diff --git a/src/extension/internal/cdr-input.cpp b/src/extension/internal/cdr-input.cpp
new file mode 100644
index 000000000..63531d082
--- /dev/null
+++ b/src/extension/internal/cdr-input.cpp
@@ -0,0 +1,293 @@
+/*
+ *  This file came from libwpg as a source, their utility wpg2svg
+ *  specifically.  It has been modified to work as an Inkscape extension.
+ *  The Inkscape extension code is covered by this copyright, but the
+ *  rest is covered by the one bellow.
+ *
+ * Authors:
+ *   Fridrich Strba (fridrich.strba@bluewin.ch)
+ *
+ * Copyright (C) 2012 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#include <stdio.h>
+#include "config.h"
+
+#include "cdr-input.h"
+
+#ifdef WITH_LIBCDR
+
+#include <string>
+#include <cstring>
+
+#include <libcdr/libcdr.h>
+#include <libwpd-stream/libwpd-stream.h>
+
+#include <gtkmm/alignment.h>
+#include <gtkmm/comboboxtext.h>
+#include <gtkmm/drawingarea.h>
+#include <gtkmm/frame.h>
+#include <gtkmm/scale.h>
+
+#include "extension/system.h"
+#include "extension/input.h"
+#include "document.h"
+
+#include "document-private.h"
+#include "document-undo.h"
+#include "inkscape.h"
+
+#include "dialogs/dialog-events.h"
+#include <gtk/gtk.h>
+#include "ui/widget/spinbutton.h"
+#include "ui/widget/frame.h"
+#include <glibmm/i18n.h>
+
+#include <gdkmm/general.h>
+
+#include "svg-view.h"
+#include "svg-view-widget.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+
+class CdrImportDialog : public Gtk::Dialog {
+public:
+     CdrImportDialog(const std::vector<WPXString> &vec);
+     virtual ~CdrImportDialog();
+
+     bool showDialog();
+     unsigned getSelectedPage();
+     void getImportSettings(Inkscape::XML::Node *prefs);
+
+private:
+     void _setPreviewPage(unsigned page);
+
+     // Signal handlers
+#if !WITH_GTKMM_3_0
+     bool _onExposePreview(GdkEventExpose *event);
+#endif
+
+     void _onPageNumberChanged();
+
+     class Gtk::Button * cancelbutton;
+     class Gtk::Button * okbutton;
+     class Gtk::Label * _labelSelect;
+     class Inkscape::UI::Widget::SpinButton * _pageNumberSpin;
+     class Gtk::Label * _labelTotalPages;
+     class Gtk::VBox * vbox1;
+     class Gtk::VBox * vbox2;
+     class Gtk::Widget * _previewArea;
+
+     const std::vector<WPXString> &_vec;   // Document to be imported
+     unsigned _current_page;  // Current selected page
+     int _preview_width, _preview_height;    // Size of the preview area
+};
+
+CdrImportDialog::CdrImportDialog(const std::vector<WPXString> &vec)
+     : _vec(vec), _current_page(1)
+{
+     int num_pages = _vec.size();
+     if ( num_pages <= 1 )
+          return;
+     cancelbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-cancel")));
+     okbutton = Gtk::manage(new class Gtk::Button(Gtk::StockID("gtk-ok")));
+     _labelSelect = Gtk::manage(new class Gtk::Label(_("Select page:")));
+
+     // Page number
+#if WITH_GTKMM_3_0
+     Glib::RefPtr<Gtk::Adjustment> _pageNumberSpin_adj = Gtk::Adjustment::create(1, 1, _vec.size(), 1, 10, 0);
+     _pageNumberSpin = Gtk::manage(new Inkscape::UI::Widget::SpinButton(_pageNumberSpin_adj, 1, 1));
+#else
+     Gtk::Adjustment *_pageNumberSpin_adj = Gtk::manage(
+               new class Gtk::Adjustment(1, 1, _vec.size(), 1, 10, 0));
+     _pageNumberSpin = Gtk::manage(new class Inkscape::UI::Widget::SpinButton(*_pageNumberSpin_adj, 1, 1));
+#endif
+     _labelTotalPages = Gtk::manage(new class Gtk::Label());
+     gchar *label_text = g_strdup_printf(_("out of %i"), num_pages);
+     _labelTotalPages->set_label(label_text);
+     g_free(label_text);
+
+     vbox1 = Gtk::manage(new class Gtk::VBox(false, 4));
+     SPDocument *doc = SPDocument::createNewDocFromMem(_vec[0].cstr(), strlen(_vec[0].cstr()), 0);
+     _previewArea = Glib::wrap(sp_svg_view_widget_new(doc));
+
+     vbox2 = Gtk::manage(new class Gtk::VBox(false, 4));
+     cancelbutton->set_can_focus();
+     cancelbutton->set_can_default();
+     cancelbutton->set_relief(Gtk::RELIEF_NORMAL);
+     okbutton->set_can_focus();
+     okbutton->set_can_default();
+     okbutton->set_relief(Gtk::RELIEF_NORMAL);
+     this->get_action_area()->property_layout_style().set_value(Gtk::BUTTONBOX_END);
+     _labelSelect->set_line_wrap(false);
+     _labelSelect->set_use_markup(false);
+     _labelSelect->set_selectable(false);
+     _pageNumberSpin->set_can_focus();
+     _pageNumberSpin->set_update_policy(Gtk::UPDATE_ALWAYS);
+     _pageNumberSpin->set_numeric(true);
+     _pageNumberSpin->set_digits(0);
+     _pageNumberSpin->set_wrap(false);
+     _labelTotalPages->set_line_wrap(false);
+     _labelTotalPages->set_use_markup(false);
+     _labelTotalPages->set_selectable(false);
+     vbox2->pack_start(*_previewArea, Gtk::PACK_SHRINK, 0);
+     this->get_vbox()->set_homogeneous(false);
+     this->get_vbox()->set_spacing(0);
+     this->get_vbox()->pack_start(*vbox2);
+     this->set_title(_("Page Selector"));
+     this->set_modal(true);
+     sp_transientize(GTK_WIDGET(this->gobj()));  //Make transient
+     this->property_window_position().set_value(Gtk::WIN_POS_NONE);
+     this->set_resizable(true);
+     this->property_destroy_with_parent().set_value(false);
+     this->get_action_area()->add(*_labelSelect);
+     this->add_action_widget(*_pageNumberSpin, -7);
+     this->get_action_area()->add(*_labelTotalPages);
+     this->add_action_widget(*cancelbutton, -6);
+     this->add_action_widget(*okbutton, -5);
+     cancelbutton->show();
+     okbutton->show();
+     _labelSelect->show();
+     _pageNumberSpin->show();
+     _labelTotalPages->show();
+     vbox1->show();
+     _previewArea->show();
+     vbox2->show();
+
+     // Connect signals
+     _pageNumberSpin_adj->signal_value_changed().connect(sigc::mem_fun(*this, &CdrImportDialog::_onPageNumberChanged));
+}
+
+CdrImportDialog::~CdrImportDialog() {}
+
+bool CdrImportDialog::showDialog()
+{
+     show();
+     gint b = run();
+     hide();
+     if ( b == Gtk::RESPONSE_OK ) {
+          return TRUE;
+     } else {
+          return FALSE;
+     }
+}
+
+unsigned CdrImportDialog::getSelectedPage()
+{
+     return _current_page;
+}
+
+void CdrImportDialog::_onPageNumberChanged()
+{
+     int page = _pageNumberSpin->get_value_as_int();
+     _current_page = CLAMP(page, 1, _vec.size());
+     _setPreviewPage(_current_page);
+}
+
+/**
+ * \brief Renders the given page's thumbnail
+ */
+void CdrImportDialog::_setPreviewPage(unsigned page)
+{
+     SPDocument *doc = SPDocument::createNewDocFromMem(_vec[page-1].cstr(), strlen(_vec[page-1].cstr()), 0);
+     Gtk::Widget * tmpPreviewArea = Glib::wrap(sp_svg_view_widget_new(doc));
+     std::swap(_previewArea, tmpPreviewArea);
+     if (tmpPreviewArea) {
+          _previewArea->set_size_request( tmpPreviewArea->get_width(), tmpPreviewArea->get_height() );
+          delete tmpPreviewArea;
+     }
+     vbox2->pack_start(*_previewArea, Gtk::PACK_SHRINK, 0);
+     _previewArea->show_now();
+}
+
+SPDocument *CdrInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri)
+{
+     WPXFileStream input(uri);
+
+     if (!libcdr::CDRDocument::isSupported(&input)) {
+          return NULL;
+     }
+
+     libcdr::CDRStringVector output;
+     if (!libcdr::CDRDocument::generateSVG(&input, output)) {
+          return NULL;
+     }
+
+     if (output.empty()) {
+          return NULL;
+     }
+
+     std::vector<WPXString> tmpSVGOutput;
+     for (unsigned i=0; i<output.size(); ++i) {
+          WPXString tmpString("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+          tmpString.append(output[i]);
+          tmpSVGOutput.push_back(tmpString);
+     }
+
+     unsigned page_num = 1;
+
+     // If only one page is present, import that one without bothering user
+     if (tmpSVGOutput.size() > 1) {
+          CdrImportDialog *dlg = 0;
+          if (inkscape_use_gui()) {
+               dlg = new CdrImportDialog(tmpSVGOutput);
+               if (!dlg->showDialog()) {
+                    delete dlg;
+                    return NULL;
+               }
+          }
+
+          // Get needed page
+          if (dlg) {
+               page_num = dlg->getSelectedPage();
+               if (page_num < 1)
+                    page_num = 1;
+               if (page_num > tmpSVGOutput.size())
+                    page_num = tmpSVGOutput.size();
+          }
+     }
+
+     SPDocument * doc = SPDocument::createNewDocFromMem(tmpSVGOutput[page_num-1].cstr(), strlen(tmpSVGOutput[page_num-1].cstr()), TRUE);
+     return doc;
+}
+
+#include "clear-n_.h"
+
+void CdrInput::init(void)
+{
+    /* CDR */
+     Inkscape::Extension::build_from_mem(
+        "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+            "<name>" N_("Corel DRAW Input") "</name>\n"
+            "<id>org.inkscape.input.cdr</id>\n"
+            "<input>\n"
+                "<extension>.cdr</extension>\n"
+                "<mimetype>image/x-xcdr</mimetype>\n"
+                "<filetypename>" N_("Corel DRAW 7-X4 files (*.cdr)") "</filetypename>\n"
+                "<filetypetooltip>" N_("Open files saved in Corel DRAW 7-X4") "</filetypetooltip>\n"
+            "</input>\n"
+        "</inkscape-extension>", new CdrInput());
+
+     return;
+
+} // init
+
+} } }  /* namespace Inkscape, Extension, Implementation */
+#endif /* WITH_LIBCDR */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :