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 draw_page(
  35 #ifdef WIN32
  36                       GtkPrintOperation *operation,
  37 #else
  38                       GtkPrintOperation *,
  39 #endif
  40                       GtkPrintContext   *context,
  41                       gint               /*page_nr*/,
  42                       gpointer           user_data)
  43 {
  44     struct workaround_gtkmm *junk = (struct workaround_gtkmm*)user_data;
  45     //printf("%s %d\n",__FUNCTION__, page_nr);
  46
  47     if (junk->_tab->as_bitmap()) {
  48         // Render as exported PNG
  49         gdouble width = (junk->_doc)->getWidth();
  50         gdouble height = (junk->_doc)->getHeight();
  51         gdouble dpi = junk->_tab->bitmap_dpi();
  52         std::string tmp_png;
  53         std::string tmp_base = "inkscape-print-png-XXXXXX";
  54
  55         int tmp_fd;
  56         if ( (tmp_fd = Inkscape::IO::file_open_tmp (tmp_png, tmp_base)) >= 0) {
  57             close(tmp_fd);
  58
  59             guint32 bgcolor = 0x00000000;
  60             Inkscape::XML::Node *nv = sp_repr_lookup_name (junk->_doc->rroot, "sodipodi:namedview");
  61             if (nv && nv->attribute("pagecolor"))
  62                 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
  63             if (nv && nv->attribute("inkscape:pageopacity"))
  64                 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
  65
  66             sp_export_png_file(junk->_doc, tmp_png.c_str(), 0.0, 0.0,
  67                 width, height,
  68                 (unsigned long)(width * dpi / PX_PER_IN),
  69                 (unsigned long)(height * dpi / PX_PER_IN),
  70                 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
  71
  72             // This doesn't seem to work:
  73             //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
  74             //
  75             // so we'll use a surface pattern blat instead...
  76             //
  77             // but the C++ interface isn't implemented in cairomm:
  78             //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
  79             //
  80             // so do it in C:
  81             {
  82                 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
  83                 cairo_t *cr = gtk_print_context_get_cairo_context (context);
  84                 cairo_matrix_t m;
  85                 cairo_get_matrix(cr, &m);
  86                 cairo_scale(cr, PT_PER_IN / dpi, PT_PER_IN / dpi);
  87                 // FIXME: why is the origin offset??
  88                 cairo_set_source_surface(cr, png->cobj(), -16.0, -16.0);
  89                 cairo_paint(cr);
  90                 cairo_set_matrix(cr, &m);
  91             }
  92
  93             // Clean up
  94             unlink (tmp_png.c_str());
  95         }
  96         else {
  97             g_warning(_("Could not open temporary PNG for bitmap printing"));
  98         }
  99     }
 100     else {
 101         // Render as vectors
 102         Inkscape::Extension::Internal::CairoRenderer renderer;
 103         Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
 104
 105         // ctx->setPSLevel(CAIRO_PS_LEVEL_3);
 106         ctx->setTextToPath(false);
 107         ctx->setFilterToBitmap(true);
 108         ctx->setBitmapResolution(72);
 109
 110         cairo_t *cr = gtk_print_context_get_cairo_context (context);
 111         cairo_surface_t *surface = cairo_get_target(cr);
 112         cairo_matrix_t ctm;
 113         cairo_get_matrix(cr, &ctm);
 114 #ifdef WIN32
 115         //Gtk+ does not take the non printable area into account
 116         //http://bugzilla.gnome.org/show_bug.cgi?id=381371
 117         //
 118         // This workaround translates the origin from the top left of the
 119         // printable area to the top left of the page.
 120         GtkPrintSettings *settings = gtk_print_operation_get_print_settings(operation);
 121         const gchar *printerName = gtk_print_settings_get_printer(settings);
 122         HDC hdc = CreateDC("WINSPOOL", printerName, NULL, NULL);
 123         if (hdc) {
 124             cairo_matrix_t mat;
 125             int x_off = GetDeviceCaps (hdc, PHYSICALOFFSETX);
 126             int y_off = GetDeviceCaps (hdc, PHYSICALOFFSETY);
 127             cairo_matrix_init_translate(&mat, -x_off, -y_off);
 128             cairo_matrix_multiply (&ctm, &ctm, &mat);
 129             DeleteDC(hdc);
 130         }
 131 #endif
 132         bool ret = ctx->setSurfaceTarget (surface, true, &ctm);
 133         if (ret) {
 134             ret = renderer.setupDocument (ctx, junk->_doc, TRUE, NULL);
 135             if (ret) {
 136                 renderer.renderItem(ctx, junk->_base);
 137                 ret = ctx->finish();
 138             }
 139             else {
 140                 g_warning(_("Could not set up Document"));
 141             }
 142         }
 143         else {
 144             g_warning(_("Failed to set CairoRenderContext"));
 145         }
 146
 147         // Clean up
 148         renderer.destroyContext(ctx);
 149     }
 150
 151 }
 152
 153 static GObject*
 154 create_custom_widget (GtkPrintOperation */*operation*/,
 155                       gpointer           user_data)
 156 {
 157     //printf("%s\n",__FUNCTION__);
 158     return G_OBJECT(user_data);
 159 }
 160
 161 static void
 162 begin_print (GtkPrintOperation *operation,
 163              GtkPrintContext   */*context*/,
 164              gpointer           /*user_data*/)
 165 {
 166     //printf("%s\n",__FUNCTION__);
 167     gtk_print_operation_set_n_pages (operation, 1);
 168 }
 169
 170 namespace Inkscape {
 171 namespace UI {
 172 namespace Dialog {
 173
 174 Print::Print(SPDocument *doc, SPItem *base) :
 175     _doc (doc),
 176     _base (base)
 177 {
 178     g_assert (_doc);
 179     g_assert (_base);
 180
 181     _printop = gtk_print_operation_new ();
 182
 183     // set up dialog title, based on document name
 184     gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
 185     Glib::ustring title = _("Print");
 186     title += " ";
 187     title += jobname;
 188     gtk_print_operation_set_job_name (_printop, title.c_str());
 189
 190     // set up paper size to match the document size
 191     gtk_print_operation_set_unit (_printop, GTK_UNIT_POINTS);
 192     GtkPageSetup *page_setup = gtk_page_setup_new();
 193     gdouble doc_width = _doc->getWidth() * PT_PER_PX;
 194     gdouble doc_height = _doc->getHeight() * PT_PER_PX;
 195     GtkPaperSize *paper_size;
 196     if (doc_width > doc_height) {
 197         gtk_page_setup_set_orientation (page_setup, GTK_PAGE_ORIENTATION_LANDSCAPE);
 198         paper_size = gtk_paper_size_new_custom("custom", "custom",
 199                                                doc_height, doc_width, GTK_UNIT_POINTS);
 200     } else {
 201         gtk_page_setup_set_orientation (page_setup, GTK_PAGE_ORIENTATION_PORTRAIT);
 202         paper_size = gtk_paper_size_new_custom("custom", "custom",
 203                                                doc_width, doc_height, GTK_UNIT_POINTS);
 204     }
 205
 206     gtk_page_setup_set_paper_size (page_setup, paper_size);
 207     gtk_print_operation_set_default_page_setup (_printop, page_setup);
 208     gtk_print_operation_set_use_full_page (_printop, TRUE);
 209
 210     // set up signals
 211     _workaround._doc = _doc;
 212     _workaround._base = _base;
 213     _workaround._tab = &_tab;
 214     g_signal_connect (_printop, "create-custom-widget", G_CALLBACK (create_custom_widget), _tab.gobj());
 215     g_signal_connect (_printop, "begin-print", G_CALLBACK (begin_print), NULL);
 216     g_signal_connect (_printop, "draw-page", G_CALLBACK (draw_page), &_workaround);
 217
 218     // build custom preferences tab
 219     gtk_print_operation_set_custom_tab_label (_printop, _("Rendering"));
 220 }
 221
 222 Gtk::PrintOperationResult Print::run(Gtk::PrintOperationAction, Gtk::Window &parent_window)
 223 {
 224     gtk_print_operation_run (_printop, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
 225             parent_window.gobj(), NULL);
 226     return Gtk::PRINT_OPERATION_RESULT_APPLY;
 227 }
 228
 229
 230 } // namespace Dialog
 231 } // namespace UI
 232 } // namespace Inkscape
 233
 234 /*
 235   Local Variables:
 236   mode:c++
 237   c-file-style:"stroustrup"
 238   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 239   indent-tabs-mode:nil
 240   fill-column:99
 241   End:
 242 */
 243 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :