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"
30 namespace Inkscape {
31 namespace UI {
32 namespace Dialog {
34 void
35 Print::on_begin_print(const Glib::RefPtr<Gtk::PrintContext> &context)
36 {
37 //printf("%s\n",__FUNCTION__);
38 set_n_pages (1);
39 }
41 bool
42 Print::on_paginate(const Glib::RefPtr<Gtk::PrintContext> &context)
43 {
44 /* this should not be called since begin-print sets the n pages */
45 //printf("%s\n",__FUNCTION__);
46 set_n_pages (1);
47 return false;
48 }
50 void
51 Print::on_draw_page (const Glib::RefPtr<Gtk::PrintContext> &context, int page_nr)
52 {
53 //printf("%s %d\n",__FUNCTION__, page_nr);
54 if (_tab.as_bitmap()) {
55 // Render as exported PNG
56 gdouble width = sp_document_width(_doc);
57 gdouble height = sp_document_height(_doc);
58 gdouble dpi = _tab.bitmap_dpi();
59 std::string tmp_png;
60 std::string tmp_base = "inkscape-print-png-XXXXXX";
62 int tmp_fd;
63 if ( (tmp_fd = Glib::file_open_tmp (tmp_png, tmp_base)) >= 0) {
64 close(tmp_fd);
66 guint32 bgcolor = 0x00000000;
67 Inkscape::XML::Node *nv = sp_repr_lookup_name (_doc->rroot, "sodipodi:namedview");
68 if (nv && nv->attribute("pagecolor"))
69 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
70 if (nv && nv->attribute("inkscape:pageopacity"))
71 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
73 sp_export_png_file(_doc, tmp_png.c_str(), 0.0, 0.0,
74 width, height,
75 (unsigned long)(width * dpi / PX_PER_IN),
76 (unsigned long)(height * dpi / PX_PER_IN),
77 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
79 // This doesn't seem to work:
80 //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
81 //
82 // so we'll use a surface pattern blat instead...
83 //
84 // but the C++ interface isn't implemented in cairomm:
85 //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
86 //
87 // so do it in C:
88 {
89 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
90 cairo_t *cr = context->get_cairo_context ()->cobj();
91 // FIXME: why is the origin offset??
92 cairo_set_source_surface(cr, png->cobj(), -20.0, -20.0);
93 }
94 context->get_cairo_context ()->paint ();
96 // Clean up
97 unlink (tmp_png.c_str());
98 }
99 else {
100 g_warning(_("Could not open temporary PNG for bitmap printing"));
101 }
102 }
103 else {
104 // Render as vectors
105 Inkscape::Extension::Internal::CairoRenderer renderer;
106 Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
107 bool ret = ctx->setSurfaceTarget (context->get_cairo_context ()->get_target ()->cobj(), true);
108 if (ret) {
109 ret = renderer.setupDocument (ctx, _doc);
110 if (ret) {
111 renderer.renderItem(ctx, _base);
112 ret = ctx->finish();
113 }
114 else {
115 g_warning(_("Could not set up Document"));
116 }
117 }
118 else {
119 g_warning(_("Failed to set CairoRenderContext"));
120 }
122 // Clean up
123 renderer.destroyContext(ctx);
124 }
126 }
128 Gtk::Widget *
129 Print::on_create_custom_widget ()
130 {
131 return &_tab;
132 }
134 Print::Print(SPDocument *doc, SPItem *base) :
135 Gtk::PrintOperation (),
136 _doc (doc),
137 _base (base),
138 _tab ()
139 {
140 g_assert (_doc);
141 g_assert (_base);
143 // set up dialog title, based on document name
144 gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
145 Glib::ustring title = _("Print");
146 title += " ";
147 title += jobname;
148 set_job_name (title);
149 set_n_pages (1);
151 // set up paper size to match the document size
152 Glib::RefPtr<Gtk::PageSetup> page_setup = Gtk::PageSetup::create();
153 gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
154 gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
155 Gtk::PaperSize paper_size(Glib::ustring("custom"), Glib::ustring("custom"),
156 doc_width, doc_height, Gtk::UNIT_POINTS);
157 page_setup->set_paper_size (paper_size);
158 set_default_page_setup (page_setup);
160 // build custom preferences tab
161 set_custom_tab_label (Glib::ustring(_("Rendering")));
162 }
165 } // namespace Dialog
166 } // namespace UI
167 } // namespace Inkscape