text: /*
   * Copyright (C) 2009 Carlos Garcia Campos  <carlosgc@gnome.org>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2, or (at your option)
   * any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
   */
  
  #include "config.h"
  
  #include <gtk/gtk.h>
  #include "print.h"
  
  typedef enum {
          PRINT_DOCUMENT,
          PRINT_DOCUMENT_MARKUPS,
          PRINT_DOCUMENT_STAMPS
  } PgdPrintOptions;
  
  typedef struct {
  	PopplerDocument *doc;
          GtkWidget       *options_combo;
          PgdPrintOptions  options;
  } PgdPrintDemo;
  
  #define PGD_PRINT_OPTIONS "pgd-print-options"
  
  static void
  pgd_print_free (PgdPrintDemo *demo)
  {
  	if (!demo)
  		return;
  
  	if (demo->doc) {
  		g_object_unref (demo->doc);
  		demo->doc = NULL;
  	}
  
  	g_free (demo);
  }
  
  static void
  pgd_print_begin_print (GtkPrintOperation *op,
  		       GtkPrintContext   *context,
  		       PgdPrintDemo      *demo)
  {
  	gtk_print_operation_set_n_pages (op, poppler_document_get_n_pages (demo->doc));
  }
  
  static void
  pgd_print_draw_page (GtkPrintOperation *op,
  		     GtkPrintContext   *context,
  		     gint               page_nr,
  		     PgdPrintDemo      *demo)
  {
  	PopplerPage      *page;
  	cairo_t          *cr;
          GtkPrintSettings *settings;
          PgdPrintOptions   options;
          PopplerPrintFlags flags = 0;
  
  	page = poppler_document_get_page (demo->doc, page_nr);
  	if (!page)
  		return;
  
          settings = gtk_print_operation_get_print_settings (op);
          /* Workaround for gtk+ bug, we need to save the options ourselves */
          options = demo->options;
  #if 0
          options = gtk_print_settings_get_int_with_default (settings,
                                                             PGD_PRINT_OPTIONS,
                                                             PRINT_DOCUMENT_MARKUPS);
  #endif
          switch (options) {
          case PRINT_DOCUMENT:
                  flags |= POPPLER_PRINT_DOCUMENT;
                  break;
          case PRINT_DOCUMENT_MARKUPS:
                  flags |= POPPLER_PRINT_MARKUP_ANNOTS;
                  break;
          case PRINT_DOCUMENT_STAMPS:
                  flags |= POPPLER_PRINT_STAMP_ANNOTS_ONLY;
                  break;
          default:
                  g_assert_not_reached ();
          }
  
  	cr = gtk_print_context_get_cairo_context (context);
  	poppler_page_render_for_printing_with_options (page, cr, flags);
  	g_object_unref (page);
  }
  
  static GObject *
  pgd_print_create_custom_widget (GtkPrintOperation *op,
                                  PgdPrintDemo      *demo)
  {
          GtkWidget        *hbox;
          GtkWidget        *label, *combo;
          GtkPrintSettings *settings;
          PgdPrintOptions   options;
  
          settings = gtk_print_operation_get_print_settings (op);
          options = gtk_print_settings_get_int_with_default (settings,
                                                             PGD_PRINT_OPTIONS,
                                                             PRINT_DOCUMENT_MARKUPS);
  
          hbox = gtk_hbox_new (FALSE, 0);
          gtk_container_set_border_width (GTK_CONTAINER (hbox), 12);
  
          label = gtk_label_new ("Print: ");
          gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
          gtk_widget_show (label);
  
          combo = gtk_combo_box_new_text ();
          demo->options_combo = combo;
          gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "Document");
          gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "Document and markup");
          gtk_combo_box_append_text (GTK_COMBO_BOX (combo), "Document and stamps");
          gtk_combo_box_set_active (GTK_COMBO_BOX (combo), options);
          gtk_box_pack_start (GTK_BOX (hbox), combo, FALSE, FALSE, 0);
          gtk_widget_show (combo);
  
          return G_OBJECT (hbox);
  }
  
  static void
  pgd_print_custom_widget_apply (GtkPrintOperation *op,
                                 GtkWidget         *widget,
                                 PgdPrintDemo      *demo)
  {
          GtkPrintSettings *settings;
          PgdPrintOptions   options;
  
          settings = gtk_print_operation_get_print_settings (op);
          options = gtk_combo_box_get_active (GTK_COMBO_BOX (demo->options_combo));
          /* Workaround for gtk+ bug, we need to save the options ourselves */
          demo->options = options;
          gtk_print_settings_set_int (settings, PGD_PRINT_OPTIONS, options);
  }
  
  static void
  pgd_print_print (GtkWidget    *button,
  		 PgdPrintDemo *demo)
  {
  	GtkPrintOperation *op;
  	GError            *error = NULL;
  
  	op = gtk_print_operation_new ();
          gtk_print_operation_set_custom_tab_label (op, "PDF Options");
  	g_signal_connect (op, "begin-print",
  			  G_CALLBACK (pgd_print_begin_print),
  			  demo);
  	g_signal_connect (op, "draw-page",
  			  G_CALLBACK (pgd_print_draw_page),
  			  demo);
          g_signal_connect (op, "create_custom_widget",
                            G_CALLBACK (pgd_print_create_custom_widget),
                            demo);
          g_signal_connect (op, "custom_widget_apply",
                            G_CALLBACK (pgd_print_custom_widget_apply),
                            demo);
  	gtk_print_operation_run (op,
  				 GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
  				 GTK_WINDOW (gtk_widget_get_toplevel (button)),
  				 &error);
  	if (error) {
  		GtkWidget *dialog;
  
  		dialog = gtk_message_dialog_new (GTK_WINDOW (gtk_widget_get_toplevel (button)),
  						 GTK_DIALOG_DESTROY_WITH_PARENT,
  						 GTK_MESSAGE_ERROR,
  						 GTK_BUTTONS_CLOSE,
  						 "%s", error->message);
  		g_error_free (error);
  
  		g_signal_connect (dialog, "response",
  				  G_CALLBACK (gtk_widget_destroy), NULL);
  
  		gtk_widget_show (dialog);
  	}
  	g_object_unref (op);
  }
  
  GtkWidget *
  pgd_print_create_widget (PopplerDocument *document)
  {
  	PgdPrintDemo *demo;
  	GtkWidget    *vbox;
  	GtkWidget    *hbox;
  	GtkWidget    *button;
  
  	demo = g_new0 (PgdPrintDemo, 1);
  
  	demo->doc = g_object_ref (document);
  
  	vbox = gtk_vbox_new (FALSE, 12);
  
  	hbox = gtk_hbox_new (FALSE, 6);
  
  	button = gtk_button_new_with_label ("Print...");
  	g_signal_connect (G_OBJECT (button), "clicked",
  			  G_CALLBACK (pgd_print_print),
  			  (gpointer)demo);
  	gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
  	gtk_widget_show (button);
  
  	gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);
  	gtk_widget_show (hbox);
  
  	g_object_weak_ref (G_OBJECT (vbox),
  			   (GWeakNotify)pgd_print_free,
  			   (gpointer)demo);
  
  	return vbox;
  }
  