src/printing.c

   1 /*
   2  *      printing.c - this file is part of Geany, a fast and lightweight IDE
   3  *
   4  *      Copyright 2007-2012 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
   5  *      Copyright 2007-2012 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
   6  *      Copyright 2012 Colomban Wendling <ban(at)herbesfolles(dot)org>
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  *      This program is distributed in the hope that it will be useful,
  14  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *      GNU General Public License for more details.
  17  *
  18  *      You should have received a copy of the GNU General Public License along
  19  *      with this program; if not, write to the Free Software Foundation, Inc.,
  20  *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23
  24 /*
  25  * GTK printing support
  26  * (basic code layout were adopted from Sylpheed's printing implementation, thanks)
  27  */
  28
  29 #include <math.h>
  30 #include <time.h>
  31 #include <string.h>
  32
  33 #include "geany.h"
  34 #include "printing.h"
  35 #include "document.h"
  36 #include "sciwrappers.h"
  37 #include "editor.h"
  38 #include "utils.h"
  39 #include "support.h"
  40 #include "dialogs.h"
  41 #include "ui_utils.h"
  42 #include "msgwindow.h"
  43 #include "highlighting.h"
  44 #include "Scintilla.h"
  45
  46
  47 PrintingPrefs printing_prefs;
  48
  49
  50 /* document-related variables */
  51 typedef struct
  52 {
  53         GeanyDocument *doc;
  54         ScintillaObject *sci;
  55         gdouble margin_width;
  56         gdouble line_height;
  57         /* set in begin_print() to hold the time when printing was started to ensure all printed
  58          * pages have the same date and time (in case of slow machines and many pages where rendering
  59          * takes more than a second) */
  60         time_t print_time;
  61         PangoLayout *layout; /* commonly used layout object */
  62         gdouble sci_scale;
  63
  64         struct Sci_RangeToFormat fr;
  65         GArray *pages;
  66 } DocInfo;
  67
  68 /* widget references for the custom widget in the print dialog */
  69 typedef struct
  70 {
  71         GtkWidget *check_print_linenumbers;
  72         GtkWidget *check_print_pagenumbers;
  73         GtkWidget *check_print_pageheader;
  74         GtkWidget *check_print_basename;
  75         GtkWidget *entry_print_dateformat;
  76 } PrintWidgets;
  77
  78
  79 static GtkPrintSettings *settings = NULL;
  80 static GtkPageSetup *page_setup = NULL;
  81
  82
  83
  84 /* creates a commonly used layout object from the given context for use in get_page_count and
  85  * draw_page */
  86 static PangoLayout *setup_pango_layout(GtkPrintContext *context, PangoFontDescription *desc)
  87 {
  88         PangoLayout *layout;
  89
  90         layout = gtk_print_context_create_pango_layout(context);
  91         pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
  92         pango_layout_set_spacing(layout, 0);
  93         pango_layout_set_attributes(layout, NULL);
  94         pango_layout_set_font_description(layout, desc);
  95
  96         return layout;
  97 }
  98
  99
 100 static void get_text_dimensions(PangoLayout *layout, const gchar *text, gdouble *width, gdouble *height)
 101 {
 102         gint layout_w, layout_h;
 103
 104         pango_layout_set_text(layout, text, -1);
 105         pango_layout_get_size(layout, &layout_w, &layout_h);
 106         if (layout_w <= 0)
 107         {
 108                 gint default_w = 50 * strlen(text) * PANGO_SCALE;
 109
 110                 geany_debug("Invalid layout_w (%d). Falling back to default width (%d)",
 111                         layout_w, default_w);
 112                 layout_w = default_w;
 113         }
 114         if (layout_h <= 0)
 115         {
 116                 gint default_h = 100 * PANGO_SCALE;
 117
 118                 geany_debug("Invalid layout_h (%d). Falling back to default height (%d)",
 119                         layout_h, default_h);
 120                 layout_h = default_h;
 121         }
 122
 123         if (width)
 124                 *width = (gdouble)layout_w / PANGO_SCALE;
 125         if (height)
 126                 *height = (gdouble)layout_h / PANGO_SCALE;
 127 }
 128
 129
 130 static void add_page_header(DocInfo *dinfo, cairo_t *cr, gint width, gint page_nr)
 131 {
 132         gint ph_height = dinfo->line_height * 3;
 133         gchar *data;
 134         gchar *datetime;
 135         const gchar *tmp_file_name = DOC_FILENAME(dinfo->doc);
 136         gchar *file_name = (printing_prefs.page_header_basename) ?
 137                 g_path_get_basename(tmp_file_name) : g_strdup(tmp_file_name);
 138         PangoLayout *layout = dinfo->layout;
 139
 140         /* draw the frame */
 141         cairo_set_line_width(cr, 0.3);
 142         cairo_set_source_rgb(cr, 0, 0, 0);
 143         cairo_rectangle(cr, 2, 2, width - 4, ph_height - 4);
 144         cairo_stroke(cr);
 145
 146         /* width - 8: 2px between doc border and frame border, 2px between frame border and text
 147          * and this on left and right side, so (2 + 2) * 2 */
 148         pango_layout_set_width(layout, (width - 8) * PANGO_SCALE);
 149         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_MIDDLE);
 150
 151         data = g_strdup_printf("<b>%s</b>", file_name);
 152         pango_layout_set_markup(layout, data, -1);
 153         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 154         cairo_move_to(cr, 4, dinfo->line_height * 0.5);
 155         pango_cairo_show_layout(cr, layout);
 156         g_free(data);
 157         g_free(file_name);
 158
 159         data = g_strdup_printf(_("<b>Page %d of %d</b>"), page_nr + 1, dinfo->pages->len);
 160         pango_layout_set_markup(layout, data, -1);
 161         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 162         cairo_move_to(cr, 4, dinfo->line_height * 1.5);
 163         pango_cairo_show_layout(cr, layout);
 164         g_free(data);
 165
 166         datetime = utils_get_date_time(printing_prefs.page_header_datefmt, &(dinfo->print_time));
 167         if (G_LIKELY(!EMPTY(datetime)))
 168         {
 169                 data = g_strdup_printf("<b>%s</b>", datetime);
 170                 pango_layout_set_markup(layout, data, -1);
 171                 pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
 172                 cairo_move_to(cr, 2, dinfo->line_height * 1.5);
 173                 pango_cairo_show_layout(cr, layout);
 174                 g_free(data);
 175         }
 176         g_free(datetime);
 177
 178         /* reset layout and re-position cairo context */
 179         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 180         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
 181         pango_layout_set_justify(layout, FALSE);
 182         pango_layout_set_width(layout, width * PANGO_SCALE);
 183         cairo_move_to(cr, 0, dinfo->line_height * 3);
 184 }
 185
 186
 187 static void custom_widget_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
 188 {
 189         PrintWidgets *w = user_data;
 190
 191         printing_prefs.print_line_numbers =
 192                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers));
 193
 194         printing_prefs.print_page_numbers =
 195                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers));
 196
 197         printing_prefs.print_page_header =
 198                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader));
 199
 200         printing_prefs.page_header_basename =
 201                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_basename));
 202
 203         g_free(printing_prefs.page_header_datefmt);
 204         printing_prefs.page_header_datefmt =
 205                 g_strdup(gtk_entry_get_text(GTK_ENTRY(w->entry_print_dateformat)));
 206 }
 207
 208
 209 static void on_page_header_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 210 {
 211         gboolean sens = gtk_toggle_button_get_active(togglebutton);
 212         PrintWidgets *w = user_data;
 213
 214         gtk_widget_set_sensitive(w->check_print_basename, sens);
 215         gtk_widget_set_sensitive(w->entry_print_dateformat, sens);
 216 }
 217
 218
 219 static GtkWidget *create_custom_widget(GtkPrintOperation *operation, gpointer user_data)
 220 {       /* copied from interface.c */
 221         GtkWidget *page;
 222         GtkWidget *frame33;
 223         GtkWidget *alignment36;
 224         GtkWidget *vbox30;
 225         GtkWidget *hbox10;
 226         GtkWidget *label203;
 227         PrintWidgets *w = user_data;
 228
 229         gtk_print_operation_set_custom_tab_label(operation, _("Document Setup"));
 230
 231         page = gtk_vbox_new(FALSE, 0);
 232         gtk_container_set_border_width(GTK_CONTAINER(page), 5);
 233
 234         w->check_print_linenumbers = gtk_check_button_new_with_mnemonic(_("Print line numbers"));
 235         gtk_box_pack_start(GTK_BOX(page), w->check_print_linenumbers, FALSE, FALSE, 0);
 236         gtk_widget_set_tooltip_text(w->check_print_linenumbers, _("Add line numbers to the printed page"));
 237         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers), printing_prefs.print_line_numbers);
 238
 239         w->check_print_pagenumbers = gtk_check_button_new_with_mnemonic(_("Print page numbers"));
 240         gtk_box_pack_start(GTK_BOX(page), w->check_print_pagenumbers, FALSE, FALSE, 0);
 241         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."));
 242         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers), printing_prefs.print_page_numbers);
 243
 244         w->check_print_pageheader = gtk_check_button_new_with_mnemonic(_("Print page header"));
 245         gtk_box_pack_start(GTK_BOX(page), w->check_print_pageheader, FALSE, FALSE, 0);
 246         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."));
 247         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader), printing_prefs.print_page_header);
 248         g_signal_connect(w->check_print_pageheader, "toggled", G_CALLBACK(on_page_header_toggled), w);
 249
 250         frame33 = gtk_frame_new(NULL);
 251         gtk_box_pack_start(GTK_BOX(page), frame33, FALSE, FALSE, 0);
 252         gtk_frame_set_label_align(GTK_FRAME(frame33), 0, 0);
 253         gtk_frame_set_shadow_type(GTK_FRAME(frame33), GTK_SHADOW_NONE);
 254
 255         alignment36 = gtk_alignment_new(0, 0.5, 1, 1);
 256         gtk_container_add(GTK_CONTAINER(frame33), alignment36);
 257         gtk_alignment_set_padding(GTK_ALIGNMENT(alignment36), 0, 0, 12, 0);
 258
 259         vbox30 = gtk_vbox_new(FALSE, 1);
 260         gtk_container_add(GTK_CONTAINER(alignment36), vbox30);
 261
 262         w->check_print_basename = gtk_check_button_new_with_mnemonic(_("Use the basename of the printed file"));
 263         gtk_box_pack_start(GTK_BOX(vbox30), w->check_print_basename, FALSE, FALSE, 0);
 264         gtk_widget_set_tooltip_text(w->check_print_basename, _("Print only the basename(without the path) of the printed file"));
 265         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_basename), printing_prefs.page_header_basename);
 266
 267         hbox10 = gtk_hbox_new(FALSE, 5);
 268         gtk_box_pack_start(GTK_BOX(vbox30), hbox10, TRUE, TRUE, 0);
 269
 270         label203 = gtk_label_new(_("Date format:"));
 271         gtk_box_pack_start(GTK_BOX(hbox10), label203, FALSE, FALSE, 0);
 272
 273         w->entry_print_dateformat = gtk_entry_new();
 274         ui_entry_add_clear_icon(GTK_ENTRY(w->entry_print_dateformat));
 275         gtk_box_pack_start(GTK_BOX(hbox10), w->entry_print_dateformat, TRUE, TRUE, 0);
 276         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. You can use any conversion specifiers which can be used with the ANSI C strftime function."));
 277         gtk_entry_set_text(GTK_ENTRY(w->entry_print_dateformat), printing_prefs.page_header_datefmt);
 278
 279         on_page_header_toggled(GTK_TOGGLE_BUTTON(w->check_print_pageheader), w);
 280         gtk_widget_show_all(page);
 281         return page;
 282 }
 283
 284
 285 static void end_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 286 {
 287         DocInfo *dinfo = user_data;
 288
 289         if (dinfo == NULL)
 290                 return;
 291
 292         gtk_widget_hide(main_widgets.progressbar);
 293         g_object_unref(dinfo->sci);
 294         g_object_unref(dinfo->layout);
 295         g_array_free(dinfo->pages, TRUE);
 296 }
 297
 298
 299 static void setup_range(DocInfo *dinfo, GtkPrintContext *ctx)
 300 {
 301         dinfo->fr.hdc = dinfo->fr.hdcTarget = gtk_print_context_get_cairo_context(ctx);
 302
 303         dinfo->fr.rcPage.left   = 0;
 304         dinfo->fr.rcPage.top    = 0;
 305         dinfo->fr.rcPage.right  = gtk_print_context_get_width(ctx);
 306         dinfo->fr.rcPage.bottom = gtk_print_context_get_height(ctx);
 307
 308         dinfo->fr.rc.left   = dinfo->fr.rcPage.left;
 309         dinfo->fr.rc.top    = dinfo->fr.rcPage.top;
 310         dinfo->fr.rc.right  = dinfo->fr.rcPage.right;
 311         dinfo->fr.rc.bottom = dinfo->fr.rcPage.bottom;
 312
 313         if (printing_prefs.print_page_header)
 314                 dinfo->fr.rc.top += dinfo->line_height * 3; /* header height */
 315         if (printing_prefs.print_page_numbers)
 316                 dinfo->fr.rc.bottom -= dinfo->line_height * 1; /* footer height */
 317
 318         dinfo->fr.rcPage.left   /= dinfo->sci_scale;
 319         dinfo->fr.rcPage.top    /= dinfo->sci_scale;
 320         dinfo->fr.rcPage.right  /= dinfo->sci_scale;
 321         dinfo->fr.rcPage.bottom /= dinfo->sci_scale;
 322         dinfo->fr.rc.left   /= dinfo->sci_scale;
 323         dinfo->fr.rc.top    /= dinfo->sci_scale;
 324         dinfo->fr.rc.right  /= dinfo->sci_scale;
 325         dinfo->fr.rc.bottom /= dinfo->sci_scale;
 326
 327         dinfo->fr.chrg.cpMin = 0;
 328         dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 329 }
 330
 331
 332 static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 333 {
 334         DocInfo *dinfo = user_data;
 335         PangoContext *pango_ctx, *widget_pango_ctx;
 336         PangoFontDescription *desc;
 337         gdouble pango_res, widget_res;
 338
 339         if (dinfo == NULL)
 340                 return;
 341
 342         gtk_widget_show(main_widgets.progressbar);
 343
 344         /* init dinfo fields */
 345
 346         /* setup printing scintilla object */
 347         dinfo->sci = editor_create_widget(dinfo->doc->editor);
 348         scintilla_send_message(dinfo->sci, SCI_SETDOCPOINTER, 0,
 349                         scintilla_send_message(dinfo->doc->editor->sci, SCI_GETDOCPOINTER, 0, 0));
 350         highlighting_set_styles(dinfo->sci, dinfo->doc->file_type);
 351         sci_set_line_numbers(dinfo->sci, printing_prefs.print_line_numbers, 0);
 352         scintilla_send_message(dinfo->sci, SCI_SETVIEWWS, SCWS_INVISIBLE, 0);
 353         scintilla_send_message(dinfo->sci, SCI_SETVIEWEOL, FALSE, 0);
 354         scintilla_send_message(dinfo->sci, SCI_SETEDGEMODE, EDGE_NONE, 0);
 355         scintilla_send_message(dinfo->sci, SCI_SETPRINTCOLOURMODE, SC_PRINT_COLOURONWHITE, 0);
 356
 357         /* Scintilla doesn't respect the context resolution, so we'll scale ourselves.
 358          * Actually Scintilla simply doesn't know about the resolution since it creates its own
 359          * Pango context out of the Cairo target, and the resolution is in the GtkPrintOperation's
 360          * Pango context */
 361         pango_ctx = gtk_print_context_create_pango_context(context);
 362         pango_res = pango_cairo_context_get_resolution(pango_ctx);
 363         g_object_unref(pango_ctx);
 364         widget_pango_ctx = gtk_widget_get_pango_context(GTK_WIDGET(dinfo->sci));
 365         widget_res = pango_cairo_context_get_resolution(widget_pango_ctx);
 366         /* On Windows, for some reason the widget's resolution is -1, so follow
 367          * Pango docs and peek the font map's one. */
 368         if (widget_res < 0)
 369         {
 370                 widget_res = pango_cairo_font_map_get_resolution(
 371                         (PangoCairoFontMap*) pango_context_get_font_map(widget_pango_ctx));
 372         }
 373         dinfo->sci_scale = pango_res / widget_res;
 374
 375         dinfo->pages = g_array_new(FALSE, FALSE, sizeof(gint));
 376
 377         dinfo->print_time = time(NULL);
 378         /* create a PangoLayout to be commonly used in add_page_header() and draw_page() */
 379         desc = pango_font_description_from_string(interface_prefs.editor_font);
 380         dinfo->layout = setup_pango_layout(context, desc);
 381         pango_font_description_free(desc);
 382         get_text_dimensions(dinfo->layout, "|XMfjgq_" /* reasonably representative character set */,
 383                 NULL, &dinfo->line_height);
 384         get_text_dimensions(dinfo->layout, "99999 " /* Scintilla resets the margin to the width of "99999" when printing */,
 385                 &dinfo->margin_width, NULL);
 386         /* setup dinfo->fr */
 387         setup_range(dinfo, context);
 388 }
 389
 390
 391 static gint format_range(DocInfo *dinfo, gboolean draw)
 392 {
 393         gint pos;
 394
 395         cairo_save(dinfo->fr.hdc);
 396         cairo_scale(dinfo->fr.hdc, dinfo->sci_scale, dinfo->sci_scale);
 397         pos = (gint) scintilla_send_message(dinfo->sci, SCI_FORMATRANGE, draw, (sptr_t) &dinfo->fr);
 398         cairo_restore(dinfo->fr.hdc);
 399
 400         return pos;
 401 }
 402
 403
 404 static gboolean paginate(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 405 {
 406         DocInfo *dinfo = user_data;
 407
 408         /* for whatever reason we get called one more time after we returned TRUE, so avoid adding
 409          * an empty page at the end */
 410         if (dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax)
 411                 return TRUE;
 412
 413         gtk_progress_bar_pulse(GTK_PROGRESS_BAR(main_widgets.progressbar));
 414         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), _("Paginating"));
 415
 416         g_array_append_val(dinfo->pages, dinfo->fr.chrg.cpMin);
 417         dinfo->fr.chrg.cpMin = format_range(dinfo, FALSE);
 418
 419         gtk_print_operation_set_n_pages(operation, dinfo->pages->len);
 420
 421         return dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax;
 422 }
 423
 424
 425 static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
 426                                           gint page_nr, gpointer user_data)
 427 {
 428         DocInfo *dinfo = user_data;
 429         cairo_t *cr;
 430         gdouble width, height;
 431
 432         g_return_if_fail(dinfo != NULL);
 433         g_return_if_fail((guint)page_nr < dinfo->pages->len);
 434
 435         if (dinfo->pages->len > 0)
 436         {
 437                 gdouble fraction = (page_nr + 1) / (gdouble) dinfo->pages->len;
 438                 gchar *text = g_strdup_printf(_("Page %d of %d"), page_nr + 1, dinfo->pages->len);
 439                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(main_widgets.progressbar), fraction);
 440                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), text);
 441                 g_free(text);
 442         }
 443
 444         cr = gtk_print_context_get_cairo_context(context);
 445         width = gtk_print_context_get_width(context);
 446         height = gtk_print_context_get_height(context);
 447
 448         if (printing_prefs.print_page_header)
 449                 add_page_header(dinfo, cr, width, page_nr);
 450
 451         dinfo->fr.chrg.cpMin = g_array_index(dinfo->pages, gint, page_nr);
 452         if ((guint)page_nr + 1 < dinfo->pages->len)
 453                 dinfo->fr.chrg.cpMax = g_array_index(dinfo->pages, gint, page_nr + 1) - 1;
 454         else /* it's the last page, print 'til the end */
 455                 dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 456
 457         format_range(dinfo, TRUE);
 458
 459         /* reset color */
 460         cairo_set_source_rgb(cr, 0, 0, 0);
 461
 462         if (printing_prefs.print_line_numbers)
 463         {       /* print a thin line between the line number margin and the data */
 464                 gdouble y1 = dinfo->fr.rc.top * dinfo->sci_scale;
 465                 gdouble y2 = dinfo->fr.rc.bottom * dinfo->sci_scale;
 466                 gdouble x = dinfo->fr.rc.left * dinfo->sci_scale + dinfo->margin_width;
 467
 468                 if (printing_prefs.print_page_header)
 469                         y1 -= 2 - 0.3;  /* to connect the line number line to the page header frame,
 470                                                          * 2 is the border, and 0.3 the line width */
 471
 472                 cairo_set_line_width(cr, 0.3);
 473                 cairo_move_to(cr, x, y1);
 474                 cairo_line_to(cr, x, y2);
 475                 cairo_stroke(cr);
 476         }
 477
 478         if (printing_prefs.print_page_numbers)
 479         {
 480                 gchar *line = g_strdup_printf("<small>- %d -</small>", page_nr + 1);
 481                 pango_layout_set_markup(dinfo->layout, line, -1);
 482                 pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_CENTER);
 483                 cairo_move_to(cr, 0, height - dinfo->line_height);
 484                 pango_cairo_show_layout(cr, dinfo->layout);
 485                 g_free(line);
 486         }
 487 }
 488
 489
 490 static void status_changed(GtkPrintOperation *op, gpointer data)
 491 {
 492         gchar *filename = (data != NULL) ? data : GEANY_STRING_UNTITLED;
 493         if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED_ABORTED)
 494                 msgwin_status_add(_("Did not send document %s to the printing subsystem."), filename);
 495         else if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED)
 496                 msgwin_status_add(_("Document %s was sent to the printing subsystem."), filename);
 497 }
 498
 499
 500 static void printing_print_gtk(GeanyDocument *doc)
 501 {
 502         GtkPrintOperation *op;
 503         GtkPrintOperationResult res = GTK_PRINT_OPERATION_RESULT_ERROR;
 504         GError *error = NULL;
 505         static const DocInfo dinfo0;
 506         DocInfo dinfo = dinfo0;
 507         PrintWidgets *widgets;
 508
 509         /** TODO check for monospace font, detect the widest character in the font and
 510           * use it at font_width */
 511
 512         widgets = g_new0(PrintWidgets, 1);
 513         /* all other fields are initialised in begin_print() */
 514         dinfo.doc = doc;
 515
 516         op = gtk_print_operation_new();
 517
 518         gtk_print_operation_set_unit(op, GTK_UNIT_POINTS);
 519         gtk_print_operation_set_show_progress(op, TRUE);
 520 #if GTK_CHECK_VERSION(2, 18, 0)
 521         gtk_print_operation_set_embed_page_setup(op, TRUE);
 522 #endif
 523
 524         g_signal_connect(op, "begin-print", G_CALLBACK(begin_print), &dinfo);
 525         g_signal_connect(op, "end-print", G_CALLBACK(end_print), &dinfo);
 526         g_signal_connect(op, "paginate", G_CALLBACK(paginate), &dinfo);
 527         g_signal_connect(op, "draw-page", G_CALLBACK(draw_page), &dinfo);
 528         g_signal_connect(op, "status-changed", G_CALLBACK(status_changed), doc->file_name);
 529         g_signal_connect(op, "create-custom-widget", G_CALLBACK(create_custom_widget), widgets);
 530         g_signal_connect(op, "custom-widget-apply", G_CALLBACK(custom_widget_apply), widgets);
 531
 532         if (settings != NULL)
 533                 gtk_print_operation_set_print_settings(op, settings);
 534         if (page_setup != NULL)
 535                 gtk_print_operation_set_default_page_setup(op, page_setup);
 536
 537         res = gtk_print_operation_run(
 538                 op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(main_widgets.window), &error);
 539
 540         if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
 541         {
 542                 if (settings != NULL)
 543                         g_object_unref(settings);
 544                 settings = g_object_ref(gtk_print_operation_get_print_settings(op));
 545                 /* status message is printed in the status-changed handler */
 546         }
 547         else if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
 548         {
 549                 dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Printing of %s failed (%s)."),
 550                                                         doc->file_name, error->message);
 551                 g_error_free(error);
 552         }
 553
 554         g_object_unref(op);
 555         g_free(widgets);
 556 }
 557
 558
 559 void printing_page_setup_gtk(void)
 560 {
 561         GtkPageSetup *new_page_setup;
 562
 563         if (settings == NULL)
 564                 settings = gtk_print_settings_new();
 565
 566         new_page_setup = gtk_print_run_page_setup_dialog(
 567                 GTK_WINDOW(main_widgets.window), page_setup, settings);
 568
 569         if (page_setup != NULL)
 570                 g_object_unref(page_setup);
 571
 572         page_setup = new_page_setup;
 573 }
 574
 575
 576 /* simple file print using an external tool */
 577 static void print_external(GeanyDocument *doc)
 578 {
 579         gchar *cmdline;
 580
 581         if (doc->file_name == NULL)
 582                 return;
 583
 584         if (EMPTY(printing_prefs.external_print_cmd))
 585         {
 586                 dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 587                         _("Please set a print command in the preferences dialog first."));
 588                 return;
 589         }
 590
 591         cmdline = g_strdup(printing_prefs.external_print_cmd);
 592         utils_str_replace_all(&cmdline, "%f", doc->file_name);
 593
 594         if (dialogs_show_question(
 595                         _("The file \"%s\" will be printed with the following command:\n\n%s"),
 596                         doc->file_name, cmdline))
 597         {
 598                 GError *error = NULL;
 599
 600 #ifdef G_OS_WIN32
 601                 gchar *tmp_cmdline = g_strdup(cmdline);
 602 #else
 603                 /* /bin/sh -c emulates the system() call and makes complex commands possible
 604                  * but only needed on non-win32 systems due to the lack of win32's shell capabilities */
 605                 gchar *tmp_cmdline = g_strconcat("/bin/sh -c \"", cmdline, "\"", NULL);
 606 #endif
 607
 608                 if (! g_spawn_command_line_async(tmp_cmdline, &error))
 609                 {
 610                         dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 611                                 _("Printing of \"%s\" failed (return code: %s)."),
 612                                 doc->file_name, error->message);
 613                         g_error_free(error);
 614                 }
 615                 else
 616                 {
 617                         msgwin_status_add(_("File %s printed."), doc->file_name);
 618                 }
 619                 g_free(tmp_cmdline);
 620         }
 621         g_free(cmdline);
 622 }
 623
 624
 625 void printing_print_doc(GeanyDocument *doc)
 626 {
 627         g_return_if_fail(DOC_VALID(doc));
 628
 629         if (printing_prefs.use_gtk_printing)
 630                 printing_print_gtk(doc);
 631         else
 632                 print_external(doc);
 633 }