src/printing.c

   1 /*
   2  *      printing.c - this file is part of Geany, a fast and lightweight IDE
   3  *
   4  *      Copyright 2007 The Geany contributors
   5  *
   6  *      This program is free software; you can redistribute it and/or modify
   7  *      it under the terms of the GNU General Public License as published by
   8  *      the Free Software Foundation; either version 2 of the License, or
   9  *      (at your option) any later version.
  10  *
  11  *      This program is distributed in the hope that it will be useful,
  12  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *      GNU General Public License for more details.
  15  *
  16  *      You should have received a copy of the GNU General Public License along
  17  *      with this program; if not, write to the Free Software Foundation, Inc.,
  18  *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21
  22 /*
  23  * GTK printing support
  24  * (basic code layout were adopted from Sylpheed's printing implementation, thanks)
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include "printing.h"
  32
  33 #include "app.h"
  34 #include "dialogs.h"
  35 #include "document.h"
  36 #include "geany.h"
  37 #include "highlighting.h"
  38 #include "msgwindow.h"
  39 #include "sciwrappers.h"
  40 #include "spawn.h"
  41 #include "support.h"
  42 #include "utils.h"
  43 #include "ui_utils.h"
  44
  45 #include <math.h>
  46 #include <time.h>
  47 #include <string.h>
  48
  49
  50 PrintingPrefs printing_prefs;
  51
  52
  53 /* document-related variables */
  54 typedef struct
  55 {
  56         GeanyDocument *doc;
  57         ScintillaObject *sci;
  58         gdouble margin_width;
  59         gdouble line_height;
  60         /* set in begin_print() to hold the time when printing was started to ensure all printed
  61          * pages have the same date and time (in case of slow machines and many pages where rendering
  62          * takes more than a second) */
  63         time_t print_time;
  64         PangoLayout *layout; /* commonly used layout object */
  65         gdouble sci_scale;
  66
  67         struct Sci_RangeToFormat fr;
  68         GArray *pages;
  69 } DocInfo;
  70
  71 /* widget references for the custom widget in the print dialog */
  72 typedef struct
  73 {
  74         GtkWidget *check_print_linenumbers;
  75         GtkWidget *check_print_pagenumbers;
  76         GtkWidget *check_print_pageheader;
  77         GtkWidget *check_print_basename;
  78         GtkWidget *entry_print_dateformat;
  79 } PrintWidgets;
  80
  81
  82 static GtkPrintSettings *settings = NULL;
  83 static GtkPageSetup *page_setup = NULL;
  84
  85
  86
  87 /* creates a commonly used layout object from the given context for use in get_page_count and
  88  * draw_page */
  89 static PangoLayout *setup_pango_layout(GtkPrintContext *context, PangoFontDescription *desc)
  90 {
  91         PangoLayout *layout;
  92
  93         layout = gtk_print_context_create_pango_layout(context);
  94         pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
  95         pango_layout_set_spacing(layout, 0);
  96         pango_layout_set_attributes(layout, NULL);
  97         pango_layout_set_font_description(layout, desc);
  98
  99         return layout;
 100 }
 101
 102
 103 static void get_text_dimensions(PangoLayout *layout, const gchar *text, gdouble *width, gdouble *height)
 104 {
 105         gint layout_w, layout_h;
 106
 107         pango_layout_set_text(layout, text, -1);
 108         pango_layout_get_size(layout, &layout_w, &layout_h);
 109         if (layout_w <= 0)
 110         {
 111                 gint default_w = 50 * strlen(text) * PANGO_SCALE;
 112
 113                 geany_debug("Invalid layout_w (%d). Falling back to default width (%d)",
 114                         layout_w, default_w);
 115                 layout_w = default_w;
 116         }
 117         if (layout_h <= 0)
 118         {
 119                 gint default_h = 100 * PANGO_SCALE;
 120
 121                 geany_debug("Invalid layout_h (%d). Falling back to default height (%d)",
 122                         layout_h, default_h);
 123                 layout_h = default_h;
 124         }
 125
 126         if (width)
 127                 *width = (gdouble)layout_w / PANGO_SCALE;
 128         if (height)
 129                 *height = (gdouble)layout_h / PANGO_SCALE;
 130 }
 131
 132
 133 static void add_page_header(DocInfo *dinfo, cairo_t *cr, gint width, gint page_nr)
 134 {
 135         gint ph_height = dinfo->line_height * 3;
 136         gchar *data;
 137         gchar *datetime;
 138         const gchar *tmp_file_name = DOC_FILENAME(dinfo->doc);
 139         gchar *file_name = (printing_prefs.page_header_basename) ?
 140                 g_path_get_basename(tmp_file_name) : g_strdup(tmp_file_name);
 141         PangoLayout *layout = dinfo->layout;
 142
 143         /* draw the frame */
 144         cairo_set_line_width(cr, 0.3);
 145         cairo_set_source_rgb(cr, 0, 0, 0);
 146         cairo_rectangle(cr, 2, 2, width - 4, ph_height - 4);
 147         cairo_stroke(cr);
 148
 149         /* width - 8: 2px between doc border and frame border, 2px between frame border and text
 150          * and this on left and right side, so (2 + 2) * 2 */
 151         pango_layout_set_width(layout, (width - 8) * PANGO_SCALE);
 152         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_MIDDLE);
 153
 154         data = g_strdup_printf("<b>%s</b>", file_name);
 155         pango_layout_set_markup(layout, data, -1);
 156         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 157         cairo_move_to(cr, 4, dinfo->line_height * 0.5);
 158         pango_cairo_show_layout(cr, layout);
 159         g_free(data);
 160         g_free(file_name);
 161
 162         data = g_strdup_printf(_("<b>Page %d of %d</b>"), page_nr + 1, dinfo->pages->len);
 163         pango_layout_set_markup(layout, data, -1);
 164         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 165         cairo_move_to(cr, 4, dinfo->line_height * 1.5);
 166         pango_cairo_show_layout(cr, layout);
 167         g_free(data);
 168
 169         datetime = utils_get_date_time(printing_prefs.page_header_datefmt, &(dinfo->print_time));
 170         if (G_LIKELY(!EMPTY(datetime)))
 171         {
 172                 data = g_strdup_printf("<b>%s</b>", datetime);
 173                 pango_layout_set_markup(layout, data, -1);
 174                 pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
 175                 cairo_move_to(cr, 2, dinfo->line_height * 1.5);
 176                 pango_cairo_show_layout(cr, layout);
 177                 g_free(data);
 178         }
 179         g_free(datetime);
 180
 181         /* reset layout and re-position cairo context */
 182         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 183         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
 184         pango_layout_set_justify(layout, FALSE);
 185         pango_layout_set_width(layout, width * PANGO_SCALE);
 186         cairo_move_to(cr, 0, dinfo->line_height * 3);
 187 }
 188
 189
 190 static void custom_widget_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
 191 {
 192         PrintWidgets *w = user_data;
 193
 194         printing_prefs.print_line_numbers =
 195                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers));
 196
 197         printing_prefs.print_page_numbers =
 198                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers));
 199
 200         printing_prefs.print_page_header =
 201                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader));
 202
 203         printing_prefs.page_header_basename =
 204                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_basename));
 205
 206         g_free(printing_prefs.page_header_datefmt);
 207         printing_prefs.page_header_datefmt =
 208                 g_strdup(gtk_entry_get_text(GTK_ENTRY(w->entry_print_dateformat)));
 209 }
 210
 211
 212 static void on_page_header_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 213 {
 214         gboolean sens = gtk_toggle_button_get_active(togglebutton);
 215         PrintWidgets *w = user_data;
 216
 217         gtk_widget_set_sensitive(w->check_print_basename, sens);
 218         gtk_widget_set_sensitive(w->entry_print_dateformat, sens);
 219 }
 220
 221
 222 static GtkWidget *create_custom_widget(GtkPrintOperation *operation, gpointer user_data)
 223 {       /* copied from interface.c */
 224         GtkWidget *page;
 225         GtkWidget *frame33;
 226         GtkWidget *alignment36;
 227         GtkWidget *vbox30;
 228         GtkWidget *hbox10;
 229         GtkWidget *label203;
 230         PrintWidgets *w = user_data;
 231
 232         gtk_print_operation_set_custom_tab_label(operation, _("Document Setup"));
 233
 234         page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 235         gtk_container_set_border_width(GTK_CONTAINER(page), 5);
 236
 237         w->check_print_linenumbers = gtk_check_button_new_with_mnemonic(_("Print line numbers"));
 238         gtk_box_pack_start(GTK_BOX(page), w->check_print_linenumbers, FALSE, FALSE, 0);
 239         gtk_widget_set_tooltip_text(w->check_print_linenumbers, _("Add line numbers to the printed page"));
 240         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers), printing_prefs.print_line_numbers);
 241
 242         w->check_print_pagenumbers = gtk_check_button_new_with_mnemonic(_("Print page numbers"));
 243         gtk_box_pack_start(GTK_BOX(page), w->check_print_pagenumbers, FALSE, FALSE, 0);
 244         gtk_widget_set_tooltip_text(w->check_print_pagenumbers, _("Add page numbers at the bottom of each page. It takes 2 lines of the page."));
 245         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers), printing_prefs.print_page_numbers);
 246
 247         w->check_print_pageheader = gtk_check_button_new_with_mnemonic(_("Print page header"));
 248         gtk_box_pack_start(GTK_BOX(page), w->check_print_pageheader, FALSE, FALSE, 0);
 249         gtk_widget_set_tooltip_text(w->check_print_pageheader, _("Add a little header to every page containing the page number, the filename and the current date (see below). It takes 3 lines of the page."));
 250         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader), printing_prefs.print_page_header);
 251         g_signal_connect(w->check_print_pageheader, "toggled", G_CALLBACK(on_page_header_toggled), w);
 252
 253         frame33 = gtk_frame_new(NULL);
 254         gtk_box_pack_start(GTK_BOX(page), frame33, FALSE, FALSE, 0);
 255         gtk_frame_set_label_align(GTK_FRAME(frame33), 0, 0);
 256         gtk_frame_set_shadow_type(GTK_FRAME(frame33), GTK_SHADOW_NONE);
 257
 258         alignment36 = gtk_alignment_new(0, 0.5, 1, 1);
 259         gtk_container_add(GTK_CONTAINER(frame33), alignment36);
 260         gtk_alignment_set_padding(GTK_ALIGNMENT(alignment36), 0, 0, 12, 0);
 261
 262         vbox30 = gtk_box_new(GTK_ORIENTATION_VERTICAL, 1);
 263         gtk_container_add(GTK_CONTAINER(alignment36), vbox30);
 264
 265         w->check_print_basename = gtk_check_button_new_with_mnemonic(_("Use the basename of the printed file"));
 266         gtk_box_pack_start(GTK_BOX(vbox30), w->check_print_basename, FALSE, FALSE, 0);
 267         gtk_widget_set_tooltip_text(w->check_print_basename, _("Print only the basename(without the path) of the printed file"));
 268         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_basename), printing_prefs.page_header_basename);
 269
 270         hbox10 = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5);
 271         gtk_box_pack_start(GTK_BOX(vbox30), hbox10, TRUE, TRUE, 0);
 272
 273         label203 = gtk_label_new(_("Date format:"));
 274         gtk_box_pack_start(GTK_BOX(hbox10), label203, FALSE, FALSE, 0);
 275
 276         w->entry_print_dateformat = gtk_entry_new();
 277         ui_entry_add_clear_icon(GTK_ENTRY(w->entry_print_dateformat));
 278         gtk_box_pack_start(GTK_BOX(hbox10), w->entry_print_dateformat, TRUE, TRUE, 0);
 279         gtk_widget_set_tooltip_text(w->entry_print_dateformat, _("Specify a format for the date and time stamp which is added to the page header on each page. For a list of available conversion specifiers see https://docs.gtk.org/glib/method.DateTime.format.html."));
 280         gtk_entry_set_text(GTK_ENTRY(w->entry_print_dateformat), printing_prefs.page_header_datefmt);
 281
 282         on_page_header_toggled(GTK_TOGGLE_BUTTON(w->check_print_pageheader), w);
 283         gtk_widget_show_all(page);
 284         return page;
 285 }
 286
 287
 288 static void end_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 289 {
 290         DocInfo *dinfo = user_data;
 291
 292         if (dinfo == NULL)
 293                 return;
 294
 295         gtk_widget_hide(main_widgets.progressbar);
 296         g_object_unref(dinfo->sci);
 297         g_object_unref(dinfo->layout);
 298         g_array_free(dinfo->pages, TRUE);
 299 }
 300
 301
 302 static void setup_range(DocInfo *dinfo, GtkPrintContext *ctx)
 303 {
 304         dinfo->fr.hdc = dinfo->fr.hdcTarget = gtk_print_context_get_cairo_context(ctx);
 305
 306         dinfo->fr.rcPage.left   = 0;
 307         dinfo->fr.rcPage.top    = 0;
 308         dinfo->fr.rcPage.right  = gtk_print_context_get_width(ctx);
 309         dinfo->fr.rcPage.bottom = gtk_print_context_get_height(ctx);
 310
 311         dinfo->fr.rc.left   = dinfo->fr.rcPage.left;
 312         dinfo->fr.rc.top    = dinfo->fr.rcPage.top;
 313         dinfo->fr.rc.right  = dinfo->fr.rcPage.right;
 314         dinfo->fr.rc.bottom = dinfo->fr.rcPage.bottom;
 315
 316         if (printing_prefs.print_page_header)
 317                 dinfo->fr.rc.top += dinfo->line_height * 3; /* header height */
 318         if (printing_prefs.print_page_numbers)
 319                 dinfo->fr.rc.bottom -= dinfo->line_height * 1; /* footer height */
 320
 321         dinfo->fr.rcPage.left   /= dinfo->sci_scale;
 322         dinfo->fr.rcPage.top    /= dinfo->sci_scale;
 323         dinfo->fr.rcPage.right  /= dinfo->sci_scale;
 324         dinfo->fr.rcPage.bottom /= dinfo->sci_scale;
 325         dinfo->fr.rc.left   /= dinfo->sci_scale;
 326         dinfo->fr.rc.top    /= dinfo->sci_scale;
 327         dinfo->fr.rc.right  /= dinfo->sci_scale;
 328         dinfo->fr.rc.bottom /= dinfo->sci_scale;
 329
 330         dinfo->fr.chrg.cpMin = 0;
 331         dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 332 }
 333
 334
 335 static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 336 {
 337         DocInfo *dinfo = user_data;
 338         PangoContext *pango_ctx, *widget_pango_ctx;
 339         PangoFontDescription *desc;
 340         gdouble pango_res, widget_res;
 341
 342         if (dinfo == NULL)
 343                 return;
 344
 345         gtk_widget_show(main_widgets.progressbar);
 346
 347         /* init dinfo fields */
 348
 349         /* setup printing scintilla object */
 350         dinfo->sci = editor_create_widget(dinfo->doc->editor);
 351         /* since we won't add the widget to any container, assume it's ownership */
 352         g_object_ref_sink(dinfo->sci);
 353         SSM(dinfo->sci, SCI_SETDOCPOINTER, 0,
 354                         SSM(dinfo->doc->editor->sci, SCI_GETDOCPOINTER, 0, 0));
 355         highlighting_set_styles(dinfo->sci, dinfo->doc->file_type);
 356         sci_set_line_numbers(dinfo->sci, printing_prefs.print_line_numbers);
 357         SSM(dinfo->sci, SCI_SETVIEWWS, SCWS_INVISIBLE, 0);
 358         SSM(dinfo->sci, SCI_SETVIEWEOL, FALSE, 0);
 359         SSM(dinfo->sci, SCI_SETEDGEMODE, EDGE_NONE, 0);
 360         SSM(dinfo->sci, SCI_SETPRINTCOLOURMODE, SC_PRINT_COLOURONWHITE, 0);
 361
 362         /* Scintilla doesn't respect the context resolution, so we'll scale ourselves.
 363          * Actually Scintilla simply doesn't know about the resolution since it creates its own
 364          * Pango context out of the Cairo target, and the resolution is in the GtkPrintOperation's
 365          * Pango context */
 366         pango_ctx = gtk_print_context_create_pango_context(context);
 367         pango_res = pango_cairo_context_get_resolution(pango_ctx);
 368         g_object_unref(pango_ctx);
 369         widget_pango_ctx = gtk_widget_get_pango_context(GTK_WIDGET(dinfo->sci));
 370         widget_res = pango_cairo_context_get_resolution(widget_pango_ctx);
 371         /* On Windows, for some reason the widget's resolution is -1, so follow
 372          * Pango docs and peek the font map's one. */
 373         if (widget_res < 0)
 374         {
 375                 widget_res = pango_cairo_font_map_get_resolution(
 376                         (PangoCairoFontMap*) pango_context_get_font_map(widget_pango_ctx));
 377         }
 378         dinfo->sci_scale = pango_res / widget_res;
 379
 380         dinfo->pages = g_array_new(FALSE, FALSE, sizeof(gint));
 381
 382         dinfo->print_time = time(NULL);
 383         /* create a PangoLayout to be commonly used in add_page_header() and draw_page() */
 384         desc = pango_font_description_from_string(interface_prefs.editor_font);
 385         dinfo->layout = setup_pango_layout(context, desc);
 386         pango_font_description_free(desc);
 387         get_text_dimensions(dinfo->layout, "|XMfjgq_" /* reasonably representative character set */,
 388                 NULL, &dinfo->line_height);
 389         get_text_dimensions(dinfo->layout, "99999 " /* Scintilla resets the margin to the width of "99999" when printing */,
 390                 &dinfo->margin_width, NULL);
 391         /* setup dinfo->fr */
 392         setup_range(dinfo, context);
 393 }
 394
 395
 396 static gint format_range(DocInfo *dinfo, gboolean draw)
 397 {
 398         gint pos;
 399
 400         cairo_save(dinfo->fr.hdc);
 401         cairo_scale(dinfo->fr.hdc, dinfo->sci_scale, dinfo->sci_scale);
 402         pos = (gint) SSM(dinfo->sci, SCI_FORMATRANGE, draw, (sptr_t) &dinfo->fr);
 403         cairo_restore(dinfo->fr.hdc);
 404
 405         return pos;
 406 }
 407
 408
 409 static gboolean paginate(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 410 {
 411         DocInfo *dinfo = user_data;
 412
 413         /* for whatever reason we get called one more time after we returned TRUE, so avoid adding
 414          * an empty page at the end */
 415         if (dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax)
 416                 return TRUE;
 417
 418         gtk_progress_bar_pulse(GTK_PROGRESS_BAR(main_widgets.progressbar));
 419         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), _("Paginating"));
 420
 421         g_array_append_val(dinfo->pages, dinfo->fr.chrg.cpMin);
 422         dinfo->fr.chrg.cpMin = format_range(dinfo, FALSE);
 423
 424         gtk_print_operation_set_n_pages(operation, dinfo->pages->len);
 425
 426         return dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax;
 427 }
 428
 429
 430 static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
 431                                           gint page_nr, gpointer user_data)
 432 {
 433         DocInfo *dinfo = user_data;
 434         cairo_t *cr;
 435         gdouble width, height;
 436
 437         g_return_if_fail(dinfo != NULL);
 438         g_return_if_fail((guint)page_nr < dinfo->pages->len);
 439
 440         if (dinfo->pages->len > 0)
 441         {
 442                 gdouble fraction = (page_nr + 1) / (gdouble) dinfo->pages->len;
 443                 gchar *text = g_strdup_printf(_("Page %d of %d"), page_nr + 1, dinfo->pages->len);
 444                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(main_widgets.progressbar), fraction);
 445                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), text);
 446                 g_free(text);
 447         }
 448
 449         cr = gtk_print_context_get_cairo_context(context);
 450         width = gtk_print_context_get_width(context);
 451         height = gtk_print_context_get_height(context);
 452
 453         if (printing_prefs.print_page_header)
 454                 add_page_header(dinfo, cr, width, page_nr);
 455
 456         dinfo->fr.chrg.cpMin = g_array_index(dinfo->pages, gint, page_nr);
 457         if ((guint)page_nr + 1 < dinfo->pages->len)
 458                 dinfo->fr.chrg.cpMax = g_array_index(dinfo->pages, gint, page_nr + 1) - 1;
 459         else /* it's the last page, print 'til the end */
 460                 dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 461
 462         format_range(dinfo, TRUE);
 463
 464         /* reset color */
 465         cairo_set_source_rgb(cr, 0, 0, 0);
 466
 467         if (printing_prefs.print_line_numbers)
 468         {       /* print a thin line between the line number margin and the data */
 469                 gdouble y1 = dinfo->fr.rc.top * dinfo->sci_scale;
 470                 gdouble y2 = dinfo->fr.rc.bottom * dinfo->sci_scale;
 471                 gdouble x = dinfo->fr.rc.left * dinfo->sci_scale + dinfo->margin_width;
 472
 473                 if (printing_prefs.print_page_header)
 474                         y1 -= 2 - 0.3;  /* to connect the line number line to the page header frame,
 475                                                          * 2 is the border, and 0.3 the line width */
 476
 477                 cairo_set_line_width(cr, 0.3);
 478                 cairo_move_to(cr, x, y1);
 479                 cairo_line_to(cr, x, y2);
 480                 cairo_stroke(cr);
 481         }
 482
 483         if (printing_prefs.print_page_numbers)
 484         {
 485                 gchar *line = g_strdup_printf("<small>- %d -</small>", page_nr + 1);
 486                 pango_layout_set_markup(dinfo->layout, line, -1);
 487                 pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_CENTER);
 488                 cairo_move_to(cr, 0, height - dinfo->line_height);
 489                 pango_cairo_show_layout(cr, dinfo->layout);
 490                 g_free(line);
 491         }
 492 }
 493
 494
 495 static void status_changed(GtkPrintOperation *op, gpointer data)
 496 {
 497         gchar *filename = (data != NULL) ? data : GEANY_STRING_UNTITLED;
 498         if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED_ABORTED)
 499                 msgwin_status_add(_("Did not send document %s to the printing subsystem."), filename);
 500         else if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED)
 501                 msgwin_status_add(_("Document %s was sent to the printing subsystem."), filename);
 502 }
 503
 504
 505 static void printing_print_gtk(GeanyDocument *doc)
 506 {
 507         GtkPrintOperation *op;
 508         GtkPrintOperationResult res = GTK_PRINT_OPERATION_RESULT_ERROR;
 509         GError *error = NULL;
 510         static const DocInfo dinfo0;
 511         DocInfo dinfo = dinfo0;
 512         PrintWidgets *widgets;
 513
 514         /** TODO check for monospace font, detect the widest character in the font and
 515           * use it at font_width */
 516
 517         widgets = g_new0(PrintWidgets, 1);
 518         /* all other fields are initialised in begin_print() */
 519         dinfo.doc = doc;
 520
 521         op = gtk_print_operation_new();
 522
 523         gtk_print_operation_set_unit(op, GTK_UNIT_POINTS);
 524         gtk_print_operation_set_show_progress(op, TRUE);
 525         gtk_print_operation_set_embed_page_setup(op, TRUE);
 526
 527         g_signal_connect(op, "begin-print", G_CALLBACK(begin_print), &dinfo);
 528         g_signal_connect(op, "end-print", G_CALLBACK(end_print), &dinfo);
 529         g_signal_connect(op, "paginate", G_CALLBACK(paginate), &dinfo);
 530         g_signal_connect(op, "draw-page", G_CALLBACK(draw_page), &dinfo);
 531         g_signal_connect(op, "status-changed", G_CALLBACK(status_changed), doc->file_name);
 532         g_signal_connect(op, "create-custom-widget", G_CALLBACK(create_custom_widget), widgets);
 533         g_signal_connect(op, "custom-widget-apply", G_CALLBACK(custom_widget_apply), widgets);
 534
 535         if (settings != NULL)
 536                 gtk_print_operation_set_print_settings(op, settings);
 537         if (page_setup != NULL)
 538                 gtk_print_operation_set_default_page_setup(op, page_setup);
 539
 540         res = gtk_print_operation_run(
 541                 op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(main_widgets.window), &error);
 542
 543         if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
 544         {
 545                 if (settings != NULL)
 546                         g_object_unref(settings);
 547                 settings = g_object_ref(gtk_print_operation_get_print_settings(op));
 548                 /* status message is printed in the status-changed handler */
 549         }
 550         else if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
 551         {
 552                 dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Printing of %s failed (%s)."),
 553                                                         doc->file_name, error->message);
 554                 g_error_free(error);
 555         }
 556
 557         g_object_unref(op);
 558         g_free(widgets);
 559 }
 560
 561
 562 void printing_page_setup_gtk(void)
 563 {
 564         GtkPageSetup *new_page_setup;
 565
 566         if (settings == NULL)
 567                 settings = gtk_print_settings_new();
 568
 569         new_page_setup = gtk_print_run_page_setup_dialog(
 570                 GTK_WINDOW(main_widgets.window), page_setup, settings);
 571
 572         if (page_setup != NULL)
 573                 g_object_unref(page_setup);
 574
 575         page_setup = new_page_setup;
 576 }
 577
 578
 579 /* simple file print using an external tool */
 580 static void print_external(GeanyDocument *doc)
 581 {
 582         gchar *cmdline;
 583
 584         if (doc->file_name == NULL)
 585                 return;
 586
 587         if (EMPTY(printing_prefs.external_print_cmd))
 588         {
 589                 dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 590                         _("Please set a print command in the preferences dialog first."));
 591                 return;
 592         }
 593
 594         cmdline = g_strdup(printing_prefs.external_print_cmd);
 595         utils_str_replace_all(&cmdline, "%f", doc->file_name);
 596
 597         if (dialogs_show_question(
 598                         _("The file \"%s\" will be printed with the following command:\n\n%s"),
 599                         doc->file_name, cmdline))
 600         {
 601                 GError *error = NULL;
 602                 /* /bin/sh -c emulates the system() call and makes complex commands possible
 603                  * but only on non-win32 systems due to the lack of win32's shell capabilities */
 604         #ifdef G_OS_UNIX
 605                 gchar *argv[] = { "/bin/sh", "-c", cmdline, NULL };
 606
 607                 if (!spawn_async(NULL, NULL, argv, NULL, NULL, &error))
 608         #else
 609                 if (!spawn_async(NULL, cmdline, NULL, NULL, NULL, &error))
 610         #endif
 611                 {
 612                         dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 613                                 _("Cannot execute print command \"%s\": %s. "
 614                                 "Check the path setting in Preferences."),
 615                                 printing_prefs.external_print_cmd, error->message);
 616                         g_error_free(error);
 617                 }
 618                 else
 619                 {
 620                         msgwin_status_add(_("File %s printed."), doc->file_name);
 621                 }
 622         }
 623         g_free(cmdline);
 624 }
 625
 626
 627 void printing_print_doc(GeanyDocument *doc)
 628 {
 629         g_return_if_fail(DOC_VALID(doc));
 630
 631         if (printing_prefs.use_gtk_printing)
 632                 printing_print_gtk(doc);
 633         else
 634                 print_external(doc);
 635 }