/* Callback for beginning the print operation, we give the printed pages our
tab width from the preferences, and the margins from the page setup dialog. */
static void
on_begin_print(GtkPrintOperation *print, GtkPrintContext *context,
I7Document *document)
{
I7App *theapp = i7_app_get();
GSettings *prefs = i7_app_get_prefs(theapp);
GtkSourcePrintCompositor *compositor = gtk_source_print_compositor_new(i7_document_get_buffer(document));
g_signal_connect(print, "draw-page", G_CALLBACK(on_draw_page), compositor);
g_signal_connect(print, "end-print", G_CALLBACK(on_end_print), compositor);
/* Design our printed page */
unsigned tabwidth = g_settings_get_uint(prefs, PREFS_TAB_WIDTH);
if(tabwidth == 0)
tabwidth = DEFAULT_TAB_WIDTH;
gtk_source_print_compositor_set_tab_width(compositor, tabwidth);
gtk_source_print_compositor_set_wrap_mode(compositor, GTK_WRAP_WORD_CHAR);
PangoFontDescription *font = get_font_description();
gchar *fontstring = pango_font_description_to_string(font);
pango_font_description_free(font);
gtk_source_print_compositor_set_body_font_name(compositor, fontstring);
g_free(fontstring);
GtkPageSetup *setup = i7_app_get_page_setup(i7_app_get());
gtk_source_print_compositor_set_top_margin(compositor, gtk_page_setup_get_top_margin(setup, GTK_UNIT_MM), GTK_UNIT_MM);
gtk_source_print_compositor_set_bottom_margin(compositor, gtk_page_setup_get_bottom_margin(setup, GTK_UNIT_MM), GTK_UNIT_MM);
gtk_source_print_compositor_set_left_margin(compositor, gtk_page_setup_get_left_margin(setup, GTK_UNIT_MM), GTK_UNIT_MM);
gtk_source_print_compositor_set_right_margin(compositor, gtk_page_setup_get_right_margin(setup, GTK_UNIT_MM), GTK_UNIT_MM);
/* Display a notification in the status bar while paginating */
i7_document_display_status_message(document, _("Paginating..."), PRINT_OPERATIONS);
while(!gtk_source_print_compositor_paginate(compositor, context)) {
i7_document_display_progress_percentage(document, gtk_source_print_compositor_get_pagination_progress(compositor));
while(gtk_events_pending())
gtk_main_iteration();
}
i7_document_display_progress_percentage(document, 0.0);
i7_document_remove_status_message(document, PRINT_OPERATIONS);
gtk_print_operation_set_n_pages(print, gtk_source_print_compositor_get_n_pages(compositor));
}
/* Display the NI compiler's status in the app status bar. This function is
called from a child process watch, so the GDK lock is not held and must be
acquired for any GUI calls. */
static void
display_ni_status(I7Document *document, gchar *text)
{
gint percent;
gchar *message;
if(sscanf(text, " ++ %d%% (%a[^)]", &percent, &message) == 2) {
gdk_threads_enter();
i7_document_display_progress_percentage(document, percent / 100.0);
gdk_threads_leave();
free(message);
}
}
