src/ui/dialog/print.cpp

   1 /** @file
   2  * @brief Print dialog
   3  */
   4 /* Authors:
   5  *   Kees Cook <kees@outflux.net>
   6  *
   7  * Copyright (C) 2007 Kees Cook
   8  * Released under GNU GPL.  Read the file 'COPYING' for more information.
   9  */
  10
  11 #ifdef HAVE_CONFIG_H
  12 # include <config.h>
  13 #endif
  14 #ifdef WIN32
  15 #include <io.h>
  16 #include <windows.h>
  17 #endif
  18
  19 #include <gtkmm/stock.h>
  20 #include "print.h"
  21
  22 #include "extension/internal/cairo-render-context.h"
  23 #include "extension/internal/cairo-renderer.h"
  24 #include "ui/widget/rendering-options.h"
  25 #include "document.h"
  26
  27 #include "unit-constants.h"
  28 #include "helper/png-write.h"
  29 #include "svg/svg-color.h"
  30 #include "io/sys.h"
  31
  32
  33
  34 static void
  35 draw_page (GtkPrintOperation *operation,
  36            GtkPrintContext   *context,
  37            gint               /*page_nr*/,
  38            gpointer           user_data)
  39 {
  40     struct workaround_gtkmm *junk = (struct workaround_gtkmm*)user_data;
  41     //printf("%s %d\n",__FUNCTION__, page_nr);
  42
  43     if (junk->_tab->as_bitmap()) {
  44         // Render as exported PNG
  45         gdouble width = sp_document_width(junk->_doc);
  46         gdouble height = sp_document_height(junk->_doc);
  47         gdouble dpi = junk->_tab->bitmap_dpi();
  48         std::string tmp_png;
  49         std::string tmp_base = "inkscape-print-png-XXXXXX";
  50
  51         int tmp_fd;
  52         if ( (tmp_fd = Inkscape::IO::file_open_tmp (tmp_png, tmp_base)) >= 0) {
  53             close(tmp_fd);
  54
  55             guint32 bgcolor = 0x00000000;
  56             Inkscape::XML::Node *nv = sp_repr_lookup_name (junk->_doc->rroot, "sodipodi:namedview");
  57             if (nv && nv->attribute("pagecolor"))
  58                 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
  59             if (nv && nv->attribute("inkscape:pageopacity"))
  60                 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
  61
  62             sp_export_png_file(junk->_doc, tmp_png.c_str(), 0.0, 0.0,
  63                 width, height,
  64                 (unsigned long)(width * dpi / PX_PER_IN),
  65                 (unsigned long)(height * dpi / PX_PER_IN),
  66                 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
  67
  68             // This doesn't seem to work:
  69             //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
  70             //
  71             // so we'll use a surface pattern blat instead...
  72             //
  73             // but the C++ interface isn't implemented in cairomm:
  74             //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
  75             //
  76             // so do it in C:
  77             {
  78                 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
  79                 cairo_t *cr = gtk_print_context_get_cairo_context (context);
  80                 cairo_matrix_t m;
  81                 cairo_get_matrix(cr, &m);
  82                 cairo_scale(cr, PT_PER_IN / dpi, PT_PER_IN / dpi);
  83                 // FIXME: why is the origin offset??
  84                 cairo_set_source_surface(cr, png->cobj(), -16.0, -16.0);
  85                 cairo_paint(cr);
  86                 cairo_set_matrix(cr, &m);
  87             }
  88
  89             // Clean up
  90             unlink (tmp_png.c_str());
  91         }
  92         else {
  93             g_warning(_("Could not open temporary PNG for bitmap printing"));
  94         }
  95     }
  96     else {
  97         // Render as vectors
  98         Inkscape::Extension::Internal::CairoRenderer renderer;
  99         Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
 100
 101         // ctx->setPSLevel(CAIRO_PS_LEVEL_3);
 102         ctx->setTextToPath(false);
 103         ctx->setFilterToBitmap(true);
 104         ctx->setBitmapResolution(72);
 105
 106         cairo_t *cr = gtk_print_context_get_cairo_context (context);
 107         cairo_surface_t *surface = cairo_get_target(cr);
 108         cairo_matrix_t ctm;
 109         cairo_get_matrix(cr, &ctm);
 110 #ifdef WIN32
 111         //Gtk+ does not take the non printable area into account
 112         //http://bugzilla.gnome.org/show_bug.cgi?id=381371
 113         //
 114         // This workaround translates the origin from the top left of the
 115         // printable area to the top left of the page.
 116         GtkPrintSettings *settings = gtk_print_operation_get_print_settings(operation);
 117         const gchar *printerName = gtk_print_settings_get_printer(settings);
 118         HDC hdc = CreateDC("WINSPOOL", printerName, NULL, NULL);
 119         if (hdc) {
 120             cairo_matrix_t mat;
 121             int x_off = GetDeviceCaps (hdc, PHYSICALOFFSETX);
 122             int y_off = GetDeviceCaps (hdc, PHYSICALOFFSETY);
 123             cairo_matrix_init_translate(&mat, -x_off, -y_off);
 124             cairo_matrix_multiply (&ctm, &ctm, &mat);
 125             DeleteDC(hdc);
 126         }
 127 #endif
 128         bool ret = ctx->setSurfaceTarget (surface, true, &ctm);
 129         if (ret) {
 130             ret = renderer.setupDocument (ctx, junk->_doc, TRUE, NULL);
 131             if (ret) {
 132                 renderer.renderItem(ctx, junk->_base);
 133                 ret = ctx->finish();
 134             }
 135             else {
 136                 g_warning(_("Could not set up Document"));
 137             }
 138         }
 139         else {
 140             g_warning(_("Failed to set CairoRenderContext"));
 141         }
 142
 143         // Clean up
 144         renderer.destroyContext(ctx);
 145     }
 146
 147 }
 148
 149 static GObject*
 150 create_custom_widget (GtkPrintOperation */*operation*/,
 151                       gpointer           user_data)
 152 {
 153     //printf("%s\n",__FUNCTION__);
 154     return G_OBJECT(user_data);
 155 }
 156
 157 static void
 158 begin_print (GtkPrintOperation *operation,
 159              GtkPrintContext   */*context*/,
 160              gpointer           /*user_data*/)
 161 {
 162     //printf("%s\n",__FUNCTION__);
 163     gtk_print_operation_set_n_pages (operation, 1);
 164 }
 165
 166 namespace Inkscape {
 167 namespace UI {
 168 namespace Dialog {
 169
 170 Print::Print(SPDocument *doc, SPItem *base) :
 171     _doc (doc),
 172     _base (base)
 173 {
 174     g_assert (_doc);
 175     g_assert (_base);
 176
 177     _printop = gtk_print_operation_new ();
 178
 179     // set up dialog title, based on document name
 180     gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
 181     Glib::ustring title = _("Print");
 182     title += " ";
 183     title += jobname;
 184     gtk_print_operation_set_job_name (_printop, title.c_str());
 185
 186     // set up paper size to match the document size
 187     gtk_print_operation_set_unit (_printop, GTK_UNIT_POINTS);
 188     GtkPageSetup *page_setup = gtk_page_setup_new();
 189     gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
 190     gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
 191     GtkPaperSize *paper_size;
 192     if (doc_width > doc_height) {
 193         gtk_page_setup_set_orientation (page_setup, GTK_PAGE_ORIENTATION_LANDSCAPE);
 194         paper_size = gtk_paper_size_new_custom("custom", "custom",
 195                                                doc_height, doc_width, GTK_UNIT_POINTS);
 196     } else {
 197         gtk_page_setup_set_orientation (page_setup, GTK_PAGE_ORIENTATION_PORTRAIT);
 198         paper_size = gtk_paper_size_new_custom("custom", "custom",
 199                                                doc_width, doc_height, GTK_UNIT_POINTS);
 200     }
 201
 202     gtk_page_setup_set_paper_size (page_setup, paper_size);
 203     gtk_print_operation_set_default_page_setup (_printop, page_setup);
 204     gtk_print_operation_set_use_full_page (_printop, TRUE);
 205
 206     // set up signals
 207     _workaround._doc = _doc;
 208     _workaround._base = _base;
 209     _workaround._tab = &_tab;
 210     g_signal_connect (_printop, "create-custom-widget", G_CALLBACK (create_custom_widget), _tab.gobj());
 211     g_signal_connect (_printop, "begin-print", G_CALLBACK (begin_print), NULL);
 212     g_signal_connect (_printop, "draw-page", G_CALLBACK (draw_page), &_workaround);
 213
 214     // build custom preferences tab
 215     gtk_print_operation_set_custom_tab_label (_printop, _("Rendering"));
 216 }
 217
 218 Gtk::PrintOperationResult Print::run(Gtk::PrintOperationAction, Gtk::Window &parent_window)
 219 {
 220     gtk_print_operation_run (_printop, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
 221             parent_window.gobj(), NULL);
 222     return Gtk::PRINT_OPERATION_RESULT_APPLY;
 223 }
 224
 225
 226 } // namespace Dialog
 227 } // namespace UI
 228 } // namespace Inkscape
 229
 230 /*
 231   Local Variables:
 232   mode:c++
 233   c-file-style:"stroustrup"
 234   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 235   indent-tabs-mode:nil
 236   fill-column:99
 237   End:
 238 */
 239 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :