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 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include "printing.h"
  34
  35 #include "app.h"
  36 #include "dialogs.h"
  37 #include "document.h"
  38 #include "geany.h"
  39 #include "highlighting.h"
  40 #include "msgwindow.h"
  41 #include "sciwrappers.h"
  42 #include "spawn.h"
  43 #include "support.h"
  44 #include "utils.h"
  45 #include "ui_utils.h"
  46
  47 #include <math.h>
  48 #include <time.h>
  49 #include <string.h>
  50
  51
  52 PrintingPrefs printing_prefs;
  53
  54
  55 /* document-related variables */
  56 typedef struct
  57 {
  58         GeanyDocument *doc;
  59         ScintillaObject *sci;
  60         gdouble margin_width;
  61         gdouble line_height;
  62         /* set in begin_print() to hold the time when printing was started to ensure all printed
  63          * pages have the same date and time (in case of slow machines and many pages where rendering
  64          * takes more than a second) */
  65         time_t print_time;
  66         PangoLayout *layout; /* commonly used layout object */
  67         gdouble sci_scale;
  68
  69         struct Sci_RangeToFormat fr;
  70         GArray *pages;
  71 } DocInfo;
  72
  73 /* widget references for the custom widget in the print dialog */
  74 typedef struct
  75 {
  76         GtkWidget *check_print_linenumbers;
  77         GtkWidget *check_print_pagenumbers;
  78         GtkWidget *check_print_pageheader;
  79         GtkWidget *check_print_basename;
  80         GtkWidget *entry_print_dateformat;
  81 } PrintWidgets;
  82
  83
  84 static GtkPrintSettings *settings = NULL;
  85 static GtkPageSetup *page_setup = NULL;
  86
  87
  88
  89 /* creates a commonly used layout object from the given context for use in get_page_count and
  90  * draw_page */
  91 static PangoLayout *setup_pango_layout(GtkPrintContext *context, PangoFontDescription *desc)
  92 {
  93         PangoLayout *layout;
  94
  95         layout = gtk_print_context_create_pango_layout(context);
  96         pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
  97         pango_layout_set_spacing(layout, 0);
  98         pango_layout_set_attributes(layout, NULL);
  99         pango_layout_set_font_description(layout, desc);
 100
 101         return layout;
 102 }
 103
 104
 105 static void get_text_dimensions(PangoLayout *layout, const gchar *text, gdouble *width, gdouble *height)
 106 {
 107         gint layout_w, layout_h;
 108
 109         pango_layout_set_text(layout, text, -1);
 110         pango_layout_get_size(layout, &layout_w, &layout_h);
 111         if (layout_w <= 0)
 112         {
 113                 gint default_w = 50 * strlen(text) * PANGO_SCALE;
 114
 115                 geany_debug("Invalid layout_w (%d). Falling back to default width (%d)",
 116                         layout_w, default_w);
 117                 layout_w = default_w;
 118         }
 119         if (layout_h <= 0)
 120         {
 121                 gint default_h = 100 * PANGO_SCALE;
 122
 123                 geany_debug("Invalid layout_h (%d). Falling back to default height (%d)",
 124                         layout_h, default_h);
 125                 layout_h = default_h;
 126         }
 127
 128         if (width)
 129                 *width = (gdouble)layout_w / PANGO_SCALE;
 130         if (height)
 131                 *height = (gdouble)layout_h / PANGO_SCALE;
 132 }
 133
 134
 135 static void add_page_header(DocInfo *dinfo, cairo_t *cr, gint width, gint page_nr)
 136 {
 137         gint ph_height = dinfo->line_height * 3;
 138         gchar *data;
 139         gchar *datetime;
 140         const gchar *tmp_file_name = DOC_FILENAME(dinfo->doc);
 141         gchar *file_name = (printing_prefs.page_header_basename) ?
 142                 g_path_get_basename(tmp_file_name) : g_strdup(tmp_file_name);
 143         PangoLayout *layout = dinfo->layout;
 144
 145         /* draw the frame */
 146         cairo_set_line_width(cr, 0.3);
 147         cairo_set_source_rgb(cr, 0, 0, 0);
 148         cairo_rectangle(cr, 2, 2, width - 4, ph_height - 4);
 149         cairo_stroke(cr);
 150
 151         /* width - 8: 2px between doc border and frame border, 2px between frame border and text
 152          * and this on left and right side, so (2 + 2) * 2 */
 153         pango_layout_set_width(layout, (width - 8) * PANGO_SCALE);
 154         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_MIDDLE);
 155
 156         data = g_strdup_printf("<b>%s</b>", file_name);
 157         pango_layout_set_markup(layout, data, -1);
 158         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 159         cairo_move_to(cr, 4, dinfo->line_height * 0.5);
 160         pango_cairo_show_layout(cr, layout);
 161         g_free(data);
 162         g_free(file_name);
 163
 164         data = g_strdup_printf(_("<b>Page %d of %d</b>"), page_nr + 1, dinfo->pages->len);
 165         pango_layout_set_markup(layout, data, -1);
 166         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 167         cairo_move_to(cr, 4, dinfo->line_height * 1.5);
 168         pango_cairo_show_layout(cr, layout);
 169         g_free(data);
 170
 171         datetime = utils_get_date_time(printing_prefs.page_header_datefmt, &(dinfo->print_time));
 172         if (G_LIKELY(!EMPTY(datetime)))
 173         {
 174                 data = g_strdup_printf("<b>%s</b>", datetime);
 175                 pango_layout_set_markup(layout, data, -1);
 176                 pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
 177                 cairo_move_to(cr, 2, dinfo->line_height * 1.5);
 178                 pango_cairo_show_layout(cr, layout);
 179                 g_free(data);
 180         }
 181         g_free(datetime);
 182
 183         /* reset layout and re-position cairo context */
 184         pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
 185         pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
 186         pango_layout_set_justify(layout, FALSE);
 187         pango_layout_set_width(layout, width * PANGO_SCALE);
 188         cairo_move_to(cr, 0, dinfo->line_height * 3);
 189 }
 190
 191
 192 static void custom_widget_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
 193 {
 194         PrintWidgets *w = user_data;
 195
 196         printing_prefs.print_line_numbers =
 197                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers));
 198
 199         printing_prefs.print_page_numbers =
 200                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers));
 201
 202         printing_prefs.print_page_header =
 203                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader));
 204
 205         printing_prefs.page_header_basename =
 206                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_basename));
 207
 208         g_free(printing_prefs.page_header_datefmt);
 209         printing_prefs.page_header_datefmt =
 210                 g_strdup(gtk_entry_get_text(GTK_ENTRY(w->entry_print_dateformat)));
 211 }
 212
 213
 214 static void on_page_header_toggled(GtkToggleButton *togglebutton, gpointer user_data)
 215 {
 216         gboolean sens = gtk_toggle_button_get_active(togglebutton);
 217         PrintWidgets *w = user_data;
 218
 219         gtk_widget_set_sensitive(w->check_print_basename, sens);
 220         gtk_widget_set_sensitive(w->entry_print_dateformat, sens);
 221 }
 222
 223
 224 static GtkWidget *create_custom_widget(GtkPrintOperation *operation, gpointer user_data)
 225 {       /* copied from interface.c */
 226         GtkWidget *page;
 227         GtkWidget *frame33;
 228         GtkWidget *alignment36;
 229         GtkWidget *vbox30;
 230         GtkWidget *hbox10;
 231         GtkWidget *label203;
 232         PrintWidgets *w = user_data;
 233
 234         gtk_print_operation_set_custom_tab_label(operation, _("Document Setup"));
 235
 236         page = gtk_vbox_new(FALSE, 0);
 237         gtk_container_set_border_width(GTK_CONTAINER(page), 5);
 238
 239         w->check_print_linenumbers = gtk_check_button_new_with_mnemonic(_("Print line numbers"));
 240         gtk_box_pack_start(GTK_BOX(page), w->check_print_linenumbers, FALSE, FALSE, 0);
 241         gtk_widget_set_tooltip_text(w->check_print_linenumbers, _("Add line numbers to the printed page"));
 242         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers), printing_prefs.print_line_numbers);
 243
 244         w->check_print_pagenumbers = gtk_check_button_new_with_mnemonic(_("Print page numbers"));
 245         gtk_box_pack_start(GTK_BOX(page), w->check_print_pagenumbers, FALSE, FALSE, 0);
 246         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."));
 247         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers), printing_prefs.print_page_numbers);
 248
 249         w->check_print_pageheader = gtk_check_button_new_with_mnemonic(_("Print page header"));
 250         gtk_box_pack_start(GTK_BOX(page), w->check_print_pageheader, FALSE, FALSE, 0);
 251         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."));
 252         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader), printing_prefs.print_page_header);
 253         g_signal_connect(w->check_print_pageheader, "toggled", G_CALLBACK(on_page_header_toggled), w);
 254
 255         frame33 = gtk_frame_new(NULL);
 256         gtk_box_pack_start(GTK_BOX(page), frame33, FALSE, FALSE, 0);
 257         gtk_frame_set_label_align(GTK_FRAME(frame33), 0, 0);
 258         gtk_frame_set_shadow_type(GTK_FRAME(frame33), GTK_SHADOW_NONE);
 259
 260         alignment36 = gtk_alignment_new(0, 0.5, 1, 1);
 261         gtk_container_add(GTK_CONTAINER(frame33), alignment36);
 262         gtk_alignment_set_padding(GTK_ALIGNMENT(alignment36), 0, 0, 12, 0);
 263
 264         vbox30 = gtk_vbox_new(FALSE, 1);
 265         gtk_container_add(GTK_CONTAINER(alignment36), vbox30);
 266
 267         w->check_print_basename = gtk_check_button_new_with_mnemonic(_("Use the basename of the printed file"));
 268         gtk_box_pack_start(GTK_BOX(vbox30), w->check_print_basename, FALSE, FALSE, 0);
 269         gtk_widget_set_tooltip_text(w->check_print_basename, _("Print only the basename(without the path) of the printed file"));
 270         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_basename), printing_prefs.page_header_basename);
 271
 272         hbox10 = gtk_hbox_new(FALSE, 5);
 273         gtk_box_pack_start(GTK_BOX(vbox30), hbox10, TRUE, TRUE, 0);
 274
 275         label203 = gtk_label_new(_("Date format:"));
 276         gtk_box_pack_start(GTK_BOX(hbox10), label203, FALSE, FALSE, 0);
 277
 278         w->entry_print_dateformat = gtk_entry_new();
 279         ui_entry_add_clear_icon(GTK_ENTRY(w->entry_print_dateformat));
 280         gtk_box_pack_start(GTK_BOX(hbox10), w->entry_print_dateformat, TRUE, TRUE, 0);
 281         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."));
 282         gtk_entry_set_text(GTK_ENTRY(w->entry_print_dateformat), printing_prefs.page_header_datefmt);
 283
 284         on_page_header_toggled(GTK_TOGGLE_BUTTON(w->check_print_pageheader), w);
 285         gtk_widget_show_all(page);
 286         return page;
 287 }
 288
 289
 290 static void end_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 291 {
 292         DocInfo *dinfo = user_data;
 293
 294         if (dinfo == NULL)
 295                 return;
 296
 297         gtk_widget_hide(main_widgets.progressbar);
 298         g_object_unref(dinfo->sci);
 299         g_object_unref(dinfo->layout);
 300         g_array_free(dinfo->pages, TRUE);
 301 }
 302
 303
 304 static void setup_range(DocInfo *dinfo, GtkPrintContext *ctx)
 305 {
 306         dinfo->fr.hdc = dinfo->fr.hdcTarget = gtk_print_context_get_cairo_context(ctx);
 307
 308         dinfo->fr.rcPage.left   = 0;
 309         dinfo->fr.rcPage.top    = 0;
 310         dinfo->fr.rcPage.right  = gtk_print_context_get_width(ctx);
 311         dinfo->fr.rcPage.bottom = gtk_print_context_get_height(ctx);
 312
 313         dinfo->fr.rc.left   = dinfo->fr.rcPage.left;
 314         dinfo->fr.rc.top    = dinfo->fr.rcPage.top;
 315         dinfo->fr.rc.right  = dinfo->fr.rcPage.right;
 316         dinfo->fr.rc.bottom = dinfo->fr.rcPage.bottom;
 317
 318         if (printing_prefs.print_page_header)
 319                 dinfo->fr.rc.top += dinfo->line_height * 3; /* header height */
 320         if (printing_prefs.print_page_numbers)
 321                 dinfo->fr.rc.bottom -= dinfo->line_height * 1; /* footer height */
 322
 323         dinfo->fr.rcPage.left   /= dinfo->sci_scale;
 324         dinfo->fr.rcPage.top    /= dinfo->sci_scale;
 325         dinfo->fr.rcPage.right  /= dinfo->sci_scale;
 326         dinfo->fr.rcPage.bottom /= dinfo->sci_scale;
 327         dinfo->fr.rc.left   /= dinfo->sci_scale;
 328         dinfo->fr.rc.top    /= dinfo->sci_scale;
 329         dinfo->fr.rc.right  /= dinfo->sci_scale;
 330         dinfo->fr.rc.bottom /= dinfo->sci_scale;
 331
 332         dinfo->fr.chrg.cpMin = 0;
 333         dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 334 }
 335
 336
 337 static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 338 {
 339         DocInfo *dinfo = user_data;
 340         PangoContext *pango_ctx, *widget_pango_ctx;
 341         PangoFontDescription *desc;
 342         gdouble pango_res, widget_res;
 343
 344         if (dinfo == NULL)
 345                 return;
 346
 347         gtk_widget_show(main_widgets.progressbar);
 348
 349         /* init dinfo fields */
 350
 351         /* setup printing scintilla object */
 352         dinfo->sci = editor_create_widget(dinfo->doc->editor);
 353         /* since we won't add the widget to any container, assume it's ownership */
 354         g_object_ref_sink(dinfo->sci);
 355         scintilla_send_message(dinfo->sci, SCI_SETDOCPOINTER, 0,
 356                         scintilla_send_message(dinfo->doc->editor->sci, SCI_GETDOCPOINTER, 0, 0));
 357         highlighting_set_styles(dinfo->sci, dinfo->doc->file_type);
 358         sci_set_line_numbers(dinfo->sci, printing_prefs.print_line_numbers);
 359         scintilla_send_message(dinfo->sci, SCI_SETVIEWWS, SCWS_INVISIBLE, 0);
 360         scintilla_send_message(dinfo->sci, SCI_SETVIEWEOL, FALSE, 0);
 361         scintilla_send_message(dinfo->sci, SCI_SETEDGEMODE, EDGE_NONE, 0);
 362         scintilla_send_message(dinfo->sci, SCI_SETPRINTCOLOURMODE, SC_PRINT_COLOURONWHITE, 0);
 363
 364         /* Scintilla doesn't respect the context resolution, so we'll scale ourselves.
 365          * Actually Scintilla simply doesn't know about the resolution since it creates its own
 366          * Pango context out of the Cairo target, and the resolution is in the GtkPrintOperation's
 367          * Pango context */
 368         pango_ctx = gtk_print_context_create_pango_context(context);
 369         pango_res = pango_cairo_context_get_resolution(pango_ctx);
 370         g_object_unref(pango_ctx);
 371         widget_pango_ctx = gtk_widget_get_pango_context(GTK_WIDGET(dinfo->sci));
 372         widget_res = pango_cairo_context_get_resolution(widget_pango_ctx);
 373         /* On Windows, for some reason the widget's resolution is -1, so follow
 374          * Pango docs and peek the font map's one. */
 375         if (widget_res < 0)
 376         {
 377                 widget_res = pango_cairo_font_map_get_resolution(
 378                         (PangoCairoFontMap*) pango_context_get_font_map(widget_pango_ctx));
 379         }
 380         dinfo->sci_scale = pango_res / widget_res;
 381
 382         dinfo->pages = g_array_new(FALSE, FALSE, sizeof(gint));
 383
 384         dinfo->print_time = time(NULL);
 385         /* create a PangoLayout to be commonly used in add_page_header() and draw_page() */
 386         desc = pango_font_description_from_string(interface_prefs.editor_font);
 387         dinfo->layout = setup_pango_layout(context, desc);
 388         pango_font_description_free(desc);
 389         get_text_dimensions(dinfo->layout, "|XMfjgq_" /* reasonably representative character set */,
 390                 NULL, &dinfo->line_height);
 391         get_text_dimensions(dinfo->layout, "99999 " /* Scintilla resets the margin to the width of "99999" when printing */,
 392                 &dinfo->margin_width, NULL);
 393         /* setup dinfo->fr */
 394         setup_range(dinfo, context);
 395 }
 396
 397
 398 static gint format_range(DocInfo *dinfo, gboolean draw)
 399 {
 400         gint pos;
 401
 402         cairo_save(dinfo->fr.hdc);
 403         cairo_scale(dinfo->fr.hdc, dinfo->sci_scale, dinfo->sci_scale);
 404         pos = (gint) scintilla_send_message(dinfo->sci, SCI_FORMATRANGE, draw, (sptr_t) &dinfo->fr);
 405         cairo_restore(dinfo->fr.hdc);
 406
 407         return pos;
 408 }
 409
 410
 411 static gboolean paginate(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
 412 {
 413         DocInfo *dinfo = user_data;
 414
 415         /* for whatever reason we get called one more time after we returned TRUE, so avoid adding
 416          * an empty page at the end */
 417         if (dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax)
 418                 return TRUE;
 419
 420         gtk_progress_bar_pulse(GTK_PROGRESS_BAR(main_widgets.progressbar));
 421         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), _("Paginating"));
 422
 423         g_array_append_val(dinfo->pages, dinfo->fr.chrg.cpMin);
 424         dinfo->fr.chrg.cpMin = format_range(dinfo, FALSE);
 425
 426         gtk_print_operation_set_n_pages(operation, dinfo->pages->len);
 427
 428         return dinfo->fr.chrg.cpMin >= dinfo->fr.chrg.cpMax;
 429 }
 430
 431
 432 static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
 433                                           gint page_nr, gpointer user_data)
 434 {
 435         DocInfo *dinfo = user_data;
 436         cairo_t *cr;
 437         gdouble width, height;
 438
 439         g_return_if_fail(dinfo != NULL);
 440         g_return_if_fail((guint)page_nr < dinfo->pages->len);
 441
 442         if (dinfo->pages->len > 0)
 443         {
 444                 gdouble fraction = (page_nr + 1) / (gdouble) dinfo->pages->len;
 445                 gchar *text = g_strdup_printf(_("Page %d of %d"), page_nr + 1, dinfo->pages->len);
 446                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(main_widgets.progressbar), fraction);
 447                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), text);
 448                 g_free(text);
 449         }
 450
 451         cr = gtk_print_context_get_cairo_context(context);
 452         width = gtk_print_context_get_width(context);
 453         height = gtk_print_context_get_height(context);
 454
 455         if (printing_prefs.print_page_header)
 456                 add_page_header(dinfo, cr, width, page_nr);
 457
 458         dinfo->fr.chrg.cpMin = g_array_index(dinfo->pages, gint, page_nr);
 459         if ((guint)page_nr + 1 < dinfo->pages->len)
 460                 dinfo->fr.chrg.cpMax = g_array_index(dinfo->pages, gint, page_nr + 1) - 1;
 461         else /* it's the last page, print 'til the end */
 462                 dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
 463
 464         format_range(dinfo, TRUE);
 465
 466         /* reset color */
 467         cairo_set_source_rgb(cr, 0, 0, 0);
 468
 469         if (printing_prefs.print_line_numbers)
 470         {       /* print a thin line between the line number margin and the data */
 471                 gdouble y1 = dinfo->fr.rc.top * dinfo->sci_scale;
 472                 gdouble y2 = dinfo->fr.rc.bottom * dinfo->sci_scale;
 473                 gdouble x = dinfo->fr.rc.left * dinfo->sci_scale + dinfo->margin_width;
 474
 475                 if (printing_prefs.print_page_header)
 476                         y1 -= 2 - 0.3;  /* to connect the line number line to the page header frame,
 477                                                          * 2 is the border, and 0.3 the line width */
 478
 479                 cairo_set_line_width(cr, 0.3);
 480                 cairo_move_to(cr, x, y1);
 481                 cairo_line_to(cr, x, y2);
 482                 cairo_stroke(cr);
 483         }
 484
 485         if (printing_prefs.print_page_numbers)
 486         {
 487                 gchar *line = g_strdup_printf("<small>- %d -</small>", page_nr + 1);
 488                 pango_layout_set_markup(dinfo->layout, line, -1);
 489                 pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_CENTER);
 490                 cairo_move_to(cr, 0, height - dinfo->line_height);
 491                 pango_cairo_show_layout(cr, dinfo->layout);
 492                 g_free(line);
 493         }
 494 }
 495
 496
 497 static void status_changed(GtkPrintOperation *op, gpointer data)
 498 {
 499         gchar *filename = (data != NULL) ? data : GEANY_STRING_UNTITLED;
 500         if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED_ABORTED)
 501                 msgwin_status_add(_("Did not send document %s to the printing subsystem."), filename);
 502         else if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED)
 503                 msgwin_status_add(_("Document %s was sent to the printing subsystem."), filename);
 504 }
 505
 506
 507 static void printing_print_gtk(GeanyDocument *doc)
 508 {
 509         GtkPrintOperation *op;
 510         GtkPrintOperationResult res = GTK_PRINT_OPERATION_RESULT_ERROR;
 511         GError *error = NULL;
 512         static const DocInfo dinfo0;
 513         DocInfo dinfo = dinfo0;
 514         PrintWidgets *widgets;
 515
 516         /** TODO check for monospace font, detect the widest character in the font and
 517           * use it at font_width */
 518
 519         widgets = g_new0(PrintWidgets, 1);
 520         /* all other fields are initialised in begin_print() */
 521         dinfo.doc = doc;
 522
 523         op = gtk_print_operation_new();
 524
 525         gtk_print_operation_set_unit(op, GTK_UNIT_POINTS);
 526         gtk_print_operation_set_show_progress(op, TRUE);
 527         gtk_print_operation_set_embed_page_setup(op, TRUE);
 528
 529         g_signal_connect(op, "begin-print", G_CALLBACK(begin_print), &dinfo);
 530         g_signal_connect(op, "end-print", G_CALLBACK(end_print), &dinfo);
 531         g_signal_connect(op, "paginate", G_CALLBACK(paginate), &dinfo);
 532         g_signal_connect(op, "draw-page", G_CALLBACK(draw_page), &dinfo);
 533         g_signal_connect(op, "status-changed", G_CALLBACK(status_changed), doc->file_name);
 534         g_signal_connect(op, "create-custom-widget", G_CALLBACK(create_custom_widget), widgets);
 535         g_signal_connect(op, "custom-widget-apply", G_CALLBACK(custom_widget_apply), widgets);
 536
 537         if (settings != NULL)
 538                 gtk_print_operation_set_print_settings(op, settings);
 539         if (page_setup != NULL)
 540                 gtk_print_operation_set_default_page_setup(op, page_setup);
 541
 542         res = gtk_print_operation_run(
 543                 op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(main_widgets.window), &error);
 544
 545         if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
 546         {
 547                 if (settings != NULL)
 548                         g_object_unref(settings);
 549                 settings = g_object_ref(gtk_print_operation_get_print_settings(op));
 550                 /* status message is printed in the status-changed handler */
 551         }
 552         else if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
 553         {
 554                 dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Printing of %s failed (%s)."),
 555                                                         doc->file_name, error->message);
 556                 g_error_free(error);
 557         }
 558
 559         g_object_unref(op);
 560         g_free(widgets);
 561 }
 562
 563
 564 void printing_page_setup_gtk(void)
 565 {
 566         GtkPageSetup *new_page_setup;
 567
 568         if (settings == NULL)
 569                 settings = gtk_print_settings_new();
 570
 571         new_page_setup = gtk_print_run_page_setup_dialog(
 572                 GTK_WINDOW(main_widgets.window), page_setup, settings);
 573
 574         if (page_setup != NULL)
 575                 g_object_unref(page_setup);
 576
 577         page_setup = new_page_setup;
 578 }
 579
 580
 581 /* simple file print using an external tool */
 582 static void print_external(GeanyDocument *doc)
 583 {
 584         gchar *cmdline;
 585
 586         if (doc->file_name == NULL)
 587                 return;
 588
 589         if (EMPTY(printing_prefs.external_print_cmd))
 590         {
 591                 dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 592                         _("Please set a print command in the preferences dialog first."));
 593                 return;
 594         }
 595
 596         cmdline = g_strdup(printing_prefs.external_print_cmd);
 597         utils_str_replace_all(&cmdline, "%f", doc->file_name);
 598
 599         if (dialogs_show_question(
 600                         _("The file \"%s\" will be printed with the following command:\n\n%s"),
 601                         doc->file_name, cmdline))
 602         {
 603                 GError *error = NULL;
 604                 /* /bin/sh -c emulates the system() call and makes complex commands possible
 605                  * but only on non-win32 systems due to the lack of win32's shell capabilities */
 606         #ifdef G_OS_UNIX
 607                 gchar *argv[] = { "/bin/sh", "-c", cmdline, NULL };
 608
 609                 if (!spawn_async(NULL, NULL, argv, NULL, NULL, &error))
 610         #else
 611                 if (!spawn_async(NULL, cmdline, NULL, NULL, NULL, &error))
 612         #endif
 613                 {
 614                         dialogs_show_msgbox(GTK_MESSAGE_ERROR,
 615                                 _("Printing of \"%s\" failed (return code: %s)."),
 616                                 doc->file_name, error->message);
 617                         g_error_free(error);
 618                 }
 619                 else
 620                 {
 621                         msgwin_status_add(_("File %s printed."), doc->file_name);
 622                 }
 623         }
 624         g_free(cmdline);
 625 }
 626
 627
 628 void printing_print_doc(GeanyDocument *doc)
 629 {
 630         g_return_if_fail(DOC_VALID(doc));
 631
 632         if (printing_prefs.use_gtk_printing)
 633                 printing_print_gtk(doc);
 634         else
 635                 print_external(doc);
 636 }