1 /**
2 * \brief Print dialog
3 *
4 * Authors:
5 * Kees Cook <kees@outflux.net>
6 *
7 * Copyright (C) 2007 Kees Cook
8 *
9 * Released under GNU GPL. Read the file 'COPYING' for more information.
10 */
12 #ifdef HAVE_CONFIG_H
13 # include <config.h>
14 #endif
15 #ifdef WIN32
16 #include <io.h>
17 #endif
19 #include <gtkmm/stock.h>
20 #include "print.h"
22 #include "extension/internal/cairo-render-context.h"
23 #include "extension/internal/cairo-renderer.h"
24 #include "ui/widget/rendering-options.h"
26 #include "unit-constants.h"
27 #include "helper/png-write.h"
28 #include "svg/svg-color.h"
31 static void
32 draw_page (GtkPrintOperation *operation,
33 GtkPrintContext *context,
34 gint page_nr,
35 gpointer user_data)
36 {
37 struct workaround_gtkmm *junk = (struct workaround_gtkmm*)user_data;
38 //printf("%s %d\n",__FUNCTION__, page_nr);
40 if (junk->_tab->as_bitmap()) {
41 // Render as exported PNG
42 gdouble width = sp_document_width(junk->_doc);
43 gdouble height = sp_document_height(junk->_doc);
44 gdouble dpi = junk->_tab->bitmap_dpi();
45 std::string tmp_png;
46 std::string tmp_base = "inkscape-print-png-XXXXXX";
48 int tmp_fd;
49 if ( (tmp_fd = Glib::file_open_tmp (tmp_png, tmp_base)) >= 0) {
50 close(tmp_fd);
52 guint32 bgcolor = 0x00000000;
53 Inkscape::XML::Node *nv = sp_repr_lookup_name (junk->_doc->rroot, "sodipodi:namedview");
54 if (nv && nv->attribute("pagecolor"))
55 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
56 if (nv && nv->attribute("inkscape:pageopacity"))
57 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
59 sp_export_png_file(junk->_doc, tmp_png.c_str(), 0.0, 0.0,
60 width, height,
61 (unsigned long)(width * PT_PER_IN / PX_PER_IN),
62 (unsigned long)(height * PT_PER_IN / PX_PER_IN),
63 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
65 // This doesn't seem to work:
66 //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
67 //
68 // so we'll use a surface pattern blat instead...
69 //
70 // but the C++ interface isn't implemented in cairomm:
71 //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
72 //
73 // so do it in C:
74 {
75 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
76 cairo_t *cr = gtk_print_context_get_cairo_context (context);
77 // FIXME: why is the origin offset??
78 cairo_set_source_surface(cr, png->cobj(), -16.0, -16.0);
79 }
80 cairo_paint(gtk_print_context_get_cairo_context (context));
82 // Clean up
83 unlink (tmp_png.c_str());
84 }
85 else {
86 g_warning(_("Could not open temporary PNG for bitmap printing"));
87 }
88 }
89 else {
90 // Render as vectors
91 Inkscape::Extension::Internal::CairoRenderer renderer;
92 Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
93 bool ret = ctx->setSurfaceTarget (cairo_get_target (gtk_print_context_get_cairo_context (context)), true);
94 if (ret) {
95 ret = renderer.setupDocument (ctx, junk->_doc);
96 if (ret) {
97 renderer.renderItem(ctx, junk->_base);
98 ret = ctx->finish();
99 }
100 else {
101 g_warning(_("Could not set up Document"));
102 }
103 }
104 else {
105 g_warning(_("Failed to set CairoRenderContext"));
106 }
108 // Clean up
109 renderer.destroyContext(ctx);
110 }
112 }
114 static GObject*
115 create_custom_widget (GtkPrintOperation *operation,
116 gpointer user_data)
117 {
118 //printf("%s\n",__FUNCTION__);
119 return G_OBJECT(user_data);
120 }
122 static void
123 begin_print (GtkPrintOperation *operation,
124 GtkPrintContext *context,
125 gpointer user_data)
126 {
127 //printf("%s\n",__FUNCTION__);
128 gtk_print_operation_set_n_pages (operation, 1);
129 }
131 namespace Inkscape {
132 namespace UI {
133 namespace Dialog {
135 Print::Print(SPDocument *doc, SPItem *base) :
136 _doc (doc),
137 _base (base)
138 {
139 g_assert (_doc);
140 g_assert (_base);
142 _printop = gtk_print_operation_new ();
144 // set up dialog title, based on document name
145 gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
146 Glib::ustring title = _("Print");
147 title += " ";
148 title += jobname;
149 gtk_print_operation_set_job_name (_printop, title.c_str());
151 // set up paper size to match the document size
152 GtkPageSetup *page_setup = gtk_page_setup_new();
153 gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
154 gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
155 GtkPaperSize *paper_size = gtk_paper_size_new_custom("custom", "custom",
156 doc_width, doc_height, GTK_UNIT_POINTS);
157 gtk_page_setup_set_paper_size (page_setup, paper_size);
158 gtk_print_operation_set_default_page_setup (_printop, page_setup);
160 // set up signals
161 _workaround._doc = _doc;
162 _workaround._base = _base;
163 _workaround._tab = &_tab;
164 g_signal_connect (_printop, "create-custom-widget", G_CALLBACK (create_custom_widget), _tab.gobj());
165 g_signal_connect (_printop, "begin-print", G_CALLBACK (begin_print), NULL);
166 g_signal_connect (_printop, "draw-page", G_CALLBACK (draw_page), &_workaround);
168 // build custom preferences tab
169 gtk_print_operation_set_custom_tab_label (_printop, _("Rendering"));
170 }
172 Gtk::PrintOperationResult Print::run(Gtk::PrintOperationAction, Gtk::Window&)
173 {
174 gtk_print_operation_run (_printop, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, NULL, NULL);
175 return Gtk::PRINT_OPERATION_RESULT_APPLY;
176 }
179 } // namespace Dialog
180 } // namespace UI
181 } // namespace Inkscape