src/extension/internal/gdkpixbuf-input.cpp

   1 #ifdef HAVE_CONFIG_H
   2 # include <config.h>
   3 #endif
   4 #include <glib/gprintf.h>
   5 #include "document-private.h"
   6 #include <dir-util.h>
   7 #include "extension/input.h"
   8 #include "extension/system.h"
   9 #include "gdkpixbuf-input.h"
  10 #include "selection-chemistry.h"
  11 #include "sp-image.h"
  12
  13 namespace Inkscape {
  14
  15 namespace IO {
  16 GdkPixbuf* pixbuf_new_from_file( char const *utf8name, GError **error );
  17 }
  18
  19 namespace Extension {
  20 namespace Internal {
  21
  22 static std::set<Glib::ustring> create_lossy_set()
  23 {
  24     std::set<Glib::ustring> lossy;
  25     lossy.insert(".jpg");
  26     lossy.insert(".jpeg");
  27     return lossy;
  28 }
  29
  30 SPDocument *
  31 GdkpixbufInput::open(Inkscape::Extension::Input *mod, char const *uri)
  32 {
  33     bool embed = (strcmp(mod->get_param_optiongroup("link"), "embed") == 0);
  34
  35     SPDocument *doc = NULL;
  36     GdkPixbuf *pb = Inkscape::IO::pixbuf_new_from_file( uri, NULL );
  37     static std::set<Glib::ustring> lossy = create_lossy_set();
  38
  39     if (pb) {         /* We are readable */
  40         bool is_lossy;
  41         Glib::ustring mime_type, ext;
  42         Glib::ustring u = uri;
  43         std::size_t dotpos = u.rfind('.');
  44         if (dotpos != Glib::ustring::npos) {
  45             ext = u.substr(dotpos, Glib::ustring::npos);
  46         }
  47
  48         // HACK: replace with something better based on GIO
  49         if (!ext.empty() && lossy.find(ext) != lossy.end()) {
  50             is_lossy = true;
  51             mime_type = "image/jpeg";
  52         } else {
  53             is_lossy = false;
  54             mime_type = "image/png";
  55         }
  56
  57         doc = SPDocument::createNewDoc(NULL, TRUE, TRUE);
  58         bool saved = SPDocumentUndo::get_undo_sensitive(doc);
  59                 SPDocumentUndo::set_undo_sensitive(doc, false); // no need to undo in this temporary document
  60
  61         double width = gdk_pixbuf_get_width(pb);
  62         double height = gdk_pixbuf_get_height(pb);
  63         gchar const *str = gdk_pixbuf_get_option( pb, "Inkscape::DpiX" );
  64         if ( str ) {
  65             gint dpi = atoi(str);
  66             if ( dpi > 0 && dpi != 72 ) {
  67                 double scale = 72.0 / (double)dpi;
  68                 width *= scale;
  69             }
  70         }
  71         str = gdk_pixbuf_get_option( pb, "Inkscape::DpiY" );
  72         if ( str ) {
  73             gint dpi = atoi(str);
  74             if ( dpi > 0 && dpi != 72 ) {
  75                 double scale = 72.0 / (double)dpi;
  76                 height *= scale;
  77             }
  78         }
  79
  80         // Create image node
  81         Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
  82         Inkscape::XML::Node *image_node = xml_doc->createElement("svg:image");
  83         sp_repr_set_svg_double(image_node, "width", width);
  84         sp_repr_set_svg_double(image_node, "height", height);
  85
  86         if (embed) {
  87             sp_embed_image(image_node, pb, mime_type);
  88         } else {
  89             // convert filename to uri
  90             gchar* _uri = g_filename_to_uri(uri, NULL, NULL);
  91             if(_uri) {
  92                 image_node->setAttribute("xlink:href", _uri);
  93                 g_free(_uri);
  94             } else {
  95                 image_node->setAttribute("xlink:href", uri);
  96             }
  97         }
  98
  99         g_object_unref(pb);
 100
 101         // Add it to the current layer
 102         SP_DOCUMENT_ROOT(doc)->appendChildRepr(image_node);
 103         Inkscape::GC::release(image_node);
 104         fit_canvas_to_drawing(doc);
 105         // restore undo, as now this document may be shown to the user if a bitmap was opened
 106                 SPDocumentUndo::set_undo_sensitive(doc, saved);
 107     } else {
 108         printf("GdkPixbuf loader failed\n");
 109     }
 110
 111     return doc;
 112 }
 113
 114 #include "clear-n_.h"
 115
 116 void
 117 GdkpixbufInput::init(void)
 118 {
 119     GSList * formatlist, * formatlisthead;
 120
 121     /* \todo I'm not sure if I need to free this list */
 122     for (formatlist = formatlisthead = gdk_pixbuf_get_formats();
 123          formatlist != NULL;
 124          formatlist = g_slist_next(formatlist)) {
 125
 126         GdkPixbufFormat *pixformat = (GdkPixbufFormat *)formatlist->data;
 127
 128         gchar *name =        gdk_pixbuf_format_get_name(pixformat);
 129         gchar *description = gdk_pixbuf_format_get_description(pixformat);
 130         gchar **extensions =  gdk_pixbuf_format_get_extensions(pixformat);
 131         gchar **mimetypes =   gdk_pixbuf_format_get_mime_types(pixformat);
 132
 133         for (int i = 0; extensions[i] != NULL; i++) {
 134         for (int j = 0; mimetypes[j] != NULL; j++) {
 135
 136             /* thanks but no thanks, we'll handle SVG extensions... */
 137             if (strcmp(extensions[i], "svg") == 0) {
 138                 continue;
 139             }
 140             if (strcmp(extensions[i], "svgz") == 0) {
 141                 continue;
 142             }
 143             if (strcmp(extensions[i], "svg.gz") == 0) {
 144                 continue;
 145             }
 146
 147             gchar *xmlString = g_strdup_printf(
 148                 "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
 149                     "<name>" N_("%s GDK pixbuf Input") "</name>\n"
 150                     "<id>org.inkscape.input.gdkpixbuf.%s</id>\n"
 151                     "<param name='link' type='optiongroup'  appearance='full' _gui-text='" N_("Link or embed image:") "' >\n"
 152                         "<_option value='embed'>" N_("embed") "</_option>\n"
 153                         "<_option value='link'>" N_("link") "</_option>\n"
 154                     "</param>\n"
 155                     "<_param name='help' type='description'>" N_("Embed results in stand-alone, larger SVG files. Link references a file outside this SVG document and all files must be moved together.") "</_param>\n"
 156                     "<input>\n"
 157                         "<extension>.%s</extension>\n"
 158                         "<mimetype>%s</mimetype>\n"
 159                         "<filetypename>%s (*.%s)</filetypename>\n"
 160                         "<filetypetooltip>%s</filetypetooltip>\n"
 161                     "</input>\n"
 162                 "</inkscape-extension>",
 163                 name,
 164                 extensions[i],
 165                 extensions[i],
 166                 mimetypes[j],
 167                 name,
 168                 extensions[i],
 169                 description
 170                 );
 171
 172             Inkscape::Extension::build_from_mem(xmlString, new GdkpixbufInput());
 173             g_free(xmlString);
 174         }}
 175
 176         g_free(name);
 177         g_free(description);
 178         g_strfreev(mimetypes);
 179         g_strfreev(extensions);
 180     }
 181
 182     g_slist_free(formatlisthead);
 183 }
 184
 185 } } }  /* namespace Inkscape, Extension, Implementation */
 186
 187 /*
 188   Local Variables:
 189   mode:c++
 190   c-file-style:"stroustrup"
 191   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 192   indent-tabs-mode:nil
 193   fill-column:99
 194   End:
 195 */
 196 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :