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 <io.h>
18 #include "print.h"
20 #include "extension/internal/cairo-render-context.h"
21 #include "extension/internal/cairo-renderer.h"
22 #include "ui/widget/rendering-options.h"
24 #include "unit-constants.h"
25 #include "helper/png-write.h"
26 #include "svg/svg-color.h"
28 namespace Inkscape {
29 namespace UI {
30 namespace Dialog {
32 void
33 Print::_draw_page (const Glib::RefPtr<Gtk::PrintContext> &context,
34 int page_nr)
35 {
36 if (_tab.as_bitmap()) {
37 // Render as exported PNG
38 gdouble width = sp_document_width(_doc);
39 gdouble height = sp_document_height(_doc);
40 gdouble dpi = _tab.bitmap_dpi();
41 std::string tmp_png;
42 std::string tmp_base = "inkscape-print-png-XXXXXX";
44 int tmp_fd;
45 if ( (tmp_fd = Glib::file_open_tmp (tmp_png, tmp_base)) >= 0) {
46 close(tmp_fd);
48 guint32 bgcolor = 0x00000000;
49 Inkscape::XML::Node *nv = sp_repr_lookup_name (_doc->rroot, "sodipodi:namedview");
50 if (nv && nv->attribute("pagecolor"))
51 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
52 if (nv && nv->attribute("inkscape:pageopacity"))
53 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
55 sp_export_png_file(_doc, tmp_png.c_str(), 0.0, 0.0,
56 width, height,
57 (unsigned long)width * dpi / PX_PER_IN,
58 (unsigned long)height * dpi / PX_PER_IN,
59 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
61 // This doesn't seem to work:
62 //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
63 //
64 // so we'll use a surface pattern blat instead...
65 //
66 // but the C++ interface isn't implemented in cairomm:
67 //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
68 //
69 // so do it in C:
70 {
71 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
72 cairo_t *cr = context->get_cairo_context ()->cobj();
73 // FIXME: why is the origin offset??
74 cairo_set_source_surface(cr, png->cobj(), -20.0, -20.0);
75 }
76 context->get_cairo_context ()->paint ();
78 // Clean up
79 unlink (tmp_png.c_str());
80 }
81 else {
82 g_warning(_("Could not open temporary PNG for bitmap printing"));
83 }
84 }
85 else {
86 // Render as vectors
87 Inkscape::Extension::Internal::CairoRenderer renderer;
88 Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
89 bool ret = ctx->setSurfaceTarget (context->get_cairo_context ()->get_target ()->cobj(), true);
90 if (ret) {
91 ret = renderer.setupDocument (ctx, _doc);
92 if (ret) {
93 renderer.renderItem(ctx, _base);
94 ret = ctx->finish();
95 }
96 else {
97 g_warning(_("Could not set up Document"));
98 }
99 }
100 else {
101 g_warning(_("Failed to set CairoRenderContext"));
102 }
104 // Clean up
105 renderer.destroyContext(ctx);
106 }
108 }
110 Gtk::Widget *
111 Print::_create_custom_widget ()
112 {
113 return &_tab;
114 }
116 void
117 Print::_custom_widget_apply (Gtk::Widget *widget)
118 {
119 g_warning (_("custom widget apply"));
120 }
122 Print::Print(SPDocument *doc, SPItem *base) :
123 _doc (doc),
124 _base (base),
125 _tab ()
126 {
127 g_assert (_doc);
128 g_assert (_base);
130 _printop = Gtk::PrintOperation::create();
132 // set up dialog title, based on document name
133 gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
134 Glib::ustring title = _("Print");
135 title += " ";
136 title += jobname;
137 _printop->set_job_name (title);
138 _printop->set_n_pages (1);
140 // set up paper size to match the document size
141 Glib::RefPtr<Gtk::PageSetup> page_setup = Gtk::PageSetup::create();
142 gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
143 gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
144 Gtk::PaperSize paper_size(Glib::ustring("custom"), Glib::ustring("custom"),
145 doc_width, doc_height, Gtk::UNIT_POINTS);
146 page_setup->set_paper_size (paper_size);
147 _printop->set_default_page_setup (page_setup);
149 // build custom preferences tab
150 _printop->set_custom_tab_label (Glib::ustring(_("Rendering")));
151 _printop->signal_create_custom_widget().connect(sigc::mem_fun(*this, &Print::_create_custom_widget));
152 // _printop->signal_custom_widget_apply().connect(sigc::mem_fun(*this, &Print::_custom_widget_apply));
154 // register actual page surface drawing callback
155 _printop->signal_draw_page().connect(sigc::mem_fun(*this, &Print::_draw_page));
157 }
159 Gtk::PrintOperationResult
160 Print::run(Gtk::PrintOperationAction action)
161 {
162 Gtk::PrintOperationResult res;
163 res = _printop->run (action);
164 return res;
165 }
168 } // namespace Dialog
169 } // namespace UI
170 } // namespace Inkscape