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"
29 #include "io/sys.h"
33 #ifdef WIN32
34 #include <windows.h>
35 #include <commdlg.h>
36 #include <cairo.h>
37 #include <cairo-win32.h>
41 static cairo_surface_t *
42 _cairo_win32_printing_surface_create (HDC hdc)
43 {
44 int x, y, x_dpi, y_dpi, x_off, y_off, depth;
45 XFORM xform;
46 cairo_surface_t *surface;
48 x = GetDeviceCaps (hdc, HORZRES);
49 y = GetDeviceCaps (hdc, VERTRES);
51 x_dpi = GetDeviceCaps (hdc, LOGPIXELSX);
52 y_dpi = GetDeviceCaps (hdc, LOGPIXELSY);
54 x_off = GetDeviceCaps (hdc, PHYSICALOFFSETX);
55 y_off = GetDeviceCaps (hdc, PHYSICALOFFSETY);
57 depth = GetDeviceCaps(hdc, BITSPIXEL);
59 SetGraphicsMode (hdc, GM_ADVANCED);
60 xform.eM11 = x_dpi/72.0;
61 xform.eM12 = 0;
62 xform.eM21 = 0;
63 xform.eM22 = y_dpi/72.0;
64 xform.eDx = -x_off;
65 xform.eDy = -y_off;
66 SetWorldTransform (hdc, &xform);
68 surface = cairo_win32_printing_surface_create (hdc);
70 /**
71 Read fallback dpi from device capabilities. Was a workaround for a bug patched
72 in cairo 1.5.14. Without this, fallback defaults to 300dpi, which is quite acceptable.
73 Going higher can cause spool size and memory problems.
74 */
75 // cairo_surface_set_fallback_resolution (surface, x_dpi, y_dpi);
77 return surface;
78 }
79 #endif
83 static void
84 draw_page (GtkPrintOperation */*operation*/,
85 GtkPrintContext *context,
86 gint /*page_nr*/,
87 gpointer user_data)
88 {
89 struct workaround_gtkmm *junk = (struct workaround_gtkmm*)user_data;
90 //printf("%s %d\n",__FUNCTION__, page_nr);
92 if (junk->_tab->as_bitmap()) {
93 // Render as exported PNG
94 gdouble width = sp_document_width(junk->_doc);
95 gdouble height = sp_document_height(junk->_doc);
96 gdouble dpi = junk->_tab->bitmap_dpi();
97 std::string tmp_png;
98 std::string tmp_base = "inkscape-print-png-XXXXXX";
100 int tmp_fd;
101 if ( (tmp_fd = Inkscape::IO::file_open_tmp (tmp_png, tmp_base)) >= 0) {
102 close(tmp_fd);
104 guint32 bgcolor = 0x00000000;
105 Inkscape::XML::Node *nv = sp_repr_lookup_name (junk->_doc->rroot, "sodipodi:namedview");
106 if (nv && nv->attribute("pagecolor"))
107 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
108 if (nv && nv->attribute("inkscape:pageopacity"))
109 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
111 sp_export_png_file(junk->_doc, tmp_png.c_str(), 0.0, 0.0,
112 width, height,
113 (unsigned long)(width * PT_PER_IN / PX_PER_IN),
114 (unsigned long)(height * PT_PER_IN / PX_PER_IN),
115 dpi, dpi, bgcolor, NULL, NULL, true, NULL);
117 // This doesn't seem to work:
118 //context->set_cairo_context ( Cairo::Context::create (Cairo::ImageSurface::create_from_png (tmp_png) ), dpi, dpi );
119 //
120 // so we'll use a surface pattern blat instead...
121 //
122 // but the C++ interface isn't implemented in cairomm:
123 //context->get_cairo_context ()->set_source_surface(Cairo::ImageSurface::create_from_png (tmp_png) );
124 //
125 // so do it in C:
126 {
127 Cairo::RefPtr<Cairo::ImageSurface> png = Cairo::ImageSurface::create_from_png (tmp_png);
128 cairo_t *cr = gtk_print_context_get_cairo_context (context);
129 // FIXME: why is the origin offset??
130 cairo_set_source_surface(cr, png->cobj(), -16.0, -16.0);
131 }
132 cairo_paint(gtk_print_context_get_cairo_context (context));
134 // Clean up
135 unlink (tmp_png.c_str());
136 }
137 else {
138 g_warning(_("Could not open temporary PNG for bitmap printing"));
139 }
140 }
141 else {
142 // Render as vectors
143 Inkscape::Extension::Internal::CairoRenderer renderer;
144 Inkscape::Extension::Internal::CairoRenderContext *ctx = renderer.createContext();
146 // ctx->setPSLevel(CAIRO_PS_LEVEL_3);
147 ctx->setTextToPath(false);
148 ctx->setFilterToBitmap(true);
149 ctx->setBitmapResolution(72);
151 cairo_t *cr = gtk_print_context_get_cairo_context (context);
152 cairo_surface_t *surface = cairo_get_target(cr);
155 /**
156 Call cairo_win32_printing_surface directly as a workaround until GTK uses this call.
157 When GTK uses cairo_win32_printing_surface this automatically reverts.
158 */
159 #ifdef WIN32
160 if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_WIN32) {
161 HDC dc = cairo_win32_surface_get_dc (surface);
162 surface = _cairo_win32_printing_surface_create (dc);
163 }
164 #endif
166 bool ret = ctx->setSurfaceTarget (surface, true); if (ret) {
167 ret = renderer.setupDocument (ctx, junk->_doc);
168 if (ret) {
169 renderer.renderItem(ctx, junk->_base);
170 ret = ctx->finish();
171 }
172 else {
173 g_warning(_("Could not set up Document"));
174 }
175 }
176 else {
177 g_warning(_("Failed to set CairoRenderContext"));
178 }
180 // Clean up
181 renderer.destroyContext(ctx);
182 }
184 }
186 static GObject*
187 create_custom_widget (GtkPrintOperation */*operation*/,
188 gpointer user_data)
189 {
190 //printf("%s\n",__FUNCTION__);
191 return G_OBJECT(user_data);
192 }
194 static void
195 begin_print (GtkPrintOperation *operation,
196 GtkPrintContext */*context*/,
197 gpointer /*user_data*/)
198 {
199 //printf("%s\n",__FUNCTION__);
200 gtk_print_operation_set_n_pages (operation, 1);
201 }
203 namespace Inkscape {
204 namespace UI {
205 namespace Dialog {
207 Print::Print(SPDocument *doc, SPItem *base) :
208 _doc (doc),
209 _base (base)
210 {
211 g_assert (_doc);
212 g_assert (_base);
214 _printop = gtk_print_operation_new ();
216 // set up dialog title, based on document name
217 gchar *jobname = _doc->name ? _doc->name : _("SVG Document");
218 Glib::ustring title = _("Print");
219 title += " ";
220 title += jobname;
221 gtk_print_operation_set_job_name (_printop, title.c_str());
223 // set up paper size to match the document size
224 gtk_print_operation_set_unit (_printop, GTK_UNIT_POINTS);
225 GtkPageSetup *page_setup = gtk_page_setup_new();
226 gdouble doc_width = sp_document_width(_doc) * PT_PER_PX;
227 gdouble doc_height = sp_document_height(_doc) * PT_PER_PX;
228 GtkPaperSize *paper_size = gtk_paper_size_new_custom("custom", "custom",
229 doc_width, doc_height, GTK_UNIT_POINTS);
230 gtk_page_setup_set_paper_size (page_setup, paper_size);
231 #ifndef WIN32
232 gtk_print_operation_set_default_page_setup (_printop, page_setup);
233 #endif
234 gtk_print_operation_set_use_full_page (_printop, TRUE);
236 // set up signals
237 _workaround._doc = _doc;
238 _workaround._base = _base;
239 _workaround._tab = &_tab;
240 g_signal_connect (_printop, "create-custom-widget", G_CALLBACK (create_custom_widget), _tab.gobj());
241 g_signal_connect (_printop, "begin-print", G_CALLBACK (begin_print), NULL);
242 g_signal_connect (_printop, "draw-page", G_CALLBACK (draw_page), &_workaround);
244 // build custom preferences tab
245 gtk_print_operation_set_custom_tab_label (_printop, _("Rendering"));
246 }
248 Gtk::PrintOperationResult Print::run(Gtk::PrintOperationAction, Gtk::Window &parent_window)
249 {
250 gtk_print_operation_run (_printop, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
251 parent_window.gobj(), NULL);
252 return Gtk::PRINT_OPERATION_RESULT_APPLY;
253 }
256 } // namespace Dialog
257 } // namespace UI
258 } // namespace Inkscape