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
16 #include <gtkmm/stock.h>
17 #include "print.h"
19 #include "extension/internal/cairo-render-context.h"
20 #include "extension/internal/cairo-renderer.h"
21 #include "ui/widget/rendering-options.h"
23 #include "unit-constants.h"
24 #include "helper/png-write.h"
25 #include "svg/svg-color.h"
27 namespace Inkscape {
28 namespace UI {
29 namespace Dialog {
31 void
32 Print::_draw_page (const Glib::RefPtr<Gtk::PrintContext> &context,
33 int page_nr)
34 {
35 if (_tab.as_bitmap()) {
36 // Render as exported PNG
37 gdouble width = sp_document_width(_doc);
38 gdouble height = sp_document_height(_doc);
39 gdouble dpi = _tab.bitmap_dpi();
40 std::string tmp_png;
41 std::string tmp_base = "inkscape-print-png-XXXXXX";
43 int tmp_fd;
44 if ( (tmp_fd = Glib::file_open_tmp (tmp_png, tmp_base)) >= 0) {
45 close(tmp_fd);
47 guint32 bgcolor = 0x00000000;
48 Inkscape::XML::Node *nv = sp_repr_lookup_name (_doc->rroot, "sodipodi:namedview");
49 if (nv && nv->attribute("pagecolor"))
50 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
51 if (nv && nv->attribute("inkscape:pageopacity"))
52 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
54 sp_export_png_file(_doc, tmp_png.c_str(), 0.0, 0.0,
55 width, height,
56 (unsigned long)width * dpi / PX_PER_IN,
57 (unsigned long)height * dpi / PX_PER_IN,
58 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
60 // This doesn't seem to work:
61 //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
62 //
63 // so we'll use a surface pattern blat instead...
64 //
65 // but the C++ interface isn't implemented in cairomm:
66 //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
67 //
68 // so do it in C:
69 {
70 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
71 cairo_t *cr = context->get_cairo_context ()->cobj();
72 // FIXME: why is the origin offset??
73 cairo_set_source_surface(cr, png->cobj(), -20.0, -20.0);
74 }
75 context->get_cairo_context ()->paint ();
77 // Clean up
78 unlink (tmp_png.c_str());
79 }
80 else {
81 g_warning(_("Could not open temporary PNG for bitmap printing"));
82 }
83 }
84 else {
85 // Render as vectors
86 Inkscape::Extension::Internal::CairoRenderer renderer;
87 Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
88 bool ret = ctx->setSurfaceTarget (context->get_cairo_context ()->get_target ()->cobj(), true);
89 if (ret) {
90 ret = renderer.setupDocument (ctx, _doc);
91 if (ret) {
92 renderer.renderItem(ctx, _base);
93 ret = ctx->finish();
94 }
95 else {
96 g_warning(_("Could not set up Document"));
97 }
98 }
99 else {
100 g_warning(_("Failed to set CairoRenderContext"));
101 }
103 // Clean up
104 renderer.destroyContext(ctx);
105 }
107 }
109 Gtk::Widget *
110 Print::_create_custom_widget ()
111 {
112 return &_tab;
113 }
115 void
116 Print::_custom_widget_apply (Gtk::Widget *widget)
117 {
118 g_warning (_("custom widget apply"));
119 }
121 Print::Print(SPDocument *doc, SPItem *base) :
122 _doc (doc),
123 _base (base),
124 _tab ()
125 {
126 g_assert (_doc);
127 g_assert (_base);
129 _printop = Gtk::PrintOperation::create();
131 // set up dialog title, based on document name
132 gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
133 Glib::ustring title = _("Print");
134 title += " ";
135 title += jobname;
136 _printop->set_job_name (title);
137 _printop->set_n_pages (1);
139 // set up paper size to match the document size
140 Glib::RefPtr<Gtk::PageSetup> page_setup = Gtk::PageSetup::create();
141 gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
142 gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
143 Gtk::PaperSize paper_size(Glib::ustring("custom"), Glib::ustring("custom"),
144 doc_width, doc_height, Gtk::UNIT_POINTS);
145 page_setup->set_paper_size (paper_size);
146 _printop->set_default_page_setup (page_setup);
148 // build custom preferences tab
149 _printop->set_custom_tab_label (Glib::ustring(_("Rendering")));
150 _printop->signal_create_custom_widget().connect(sigc::mem_fun(*this, &Print::_create_custom_widget));
151 // _printop->signal_custom_widget_apply().connect(sigc::mem_fun(*this, &Print::_custom_widget_apply));
153 // register actual page surface drawing callback
154 _printop->signal_draw_page().connect(sigc::mem_fun(*this, &Print::_draw_page));
156 }
158 Gtk::PrintOperationResult
159 Print::run(Gtk::PrintOperationAction action)
160 {
161 Gtk::PrintOperationResult res;
162 res = _printop->run (action);
163 return res;
164 }
167 } // namespace Dialog
168 } // namespace UI
169 } // namespace Inkscape