glib/demo/forms.c - third_party/poppler - Git at Google

 /*
  * Copyright (C) 2007 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 <gtk/gtk.h>
 #include <string.h>

 #include "forms.h"
 #include "utils.h"

 enum {
 	FORMS_FIELD_TYPE_COLUMN,
 	FORMS_ID_COLUMN,
 	FORMS_READ_ONLY_COLUMN,
 	FORMS_X1_COLUMN,
 	FORMS_Y1_COLUMN,
 	FORMS_X2_COLUMN,
 	FORMS_Y2_COLUMN,
 	FORMS_FIELD_COLUMN,
 	N_COLUMNS
 };

 typedef struct {
 	PopplerDocument *doc;

 	GtkListStore    *model;
 	GtkWidget       *field_view;
 	GtkWidget       *timer_label;

 	gint             page;
 } PgdFormsDemo;

 static void
 pgd_forms_free (PgdFormsDemo *demo)
 {
 	if (!demo)
 		return;

 	if (demo->doc) {
 		g_object_unref (demo->doc);
 		demo->doc = NULL;
 	}

 	if (demo->model) {
 		g_object_unref (demo->model);
 		demo->model = NULL;
 	}

 	g_free (demo);
 }

 static GtkWidget *
 pgd_form_field_view_new (void)
 {
 	GtkWidget  *frame, *label;

 	frame = gtk_frame_new (NULL);
 	gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE);
 	label = gtk_label_new (NULL);
 	gtk_label_set_markup (GTK_LABEL (label), "<b>Form Field Properties</b>");
 	gtk_frame_set_label_widget (GTK_FRAME (frame), label);
 	gtk_widget_show (label);

 	return frame;
 }

 static void
 pgd_form_field_view_add_choice_items (GtkTable         *table,
 				      PopplerFormField *field,
 				      gint             *selected,
 				      gint             *row)
 {
 	GtkWidget     *label;
 	GtkWidget     *textview, *swindow;
 	GtkTextBuffer *buffer;
 	gint           i;

 	label = gtk_label_new (NULL);
 	g_object_set (G_OBJECT (label), "xalign", 0.0, NULL);
 	gtk_label_set_markup (GTK_LABEL (label), "<b>Items:</b>");
 	gtk_table_attach (GTK_TABLE (table), label, 0, 1, *row, *row + 1,
 			  GTK_FILL, GTK_FILL, 0, 0);
 	gtk_widget_show (label);

 	swindow = gtk_scrolled_window_new (NULL, NULL);
 	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
 					GTK_POLICY_AUTOMATIC,
 					GTK_POLICY_AUTOMATIC);

 	textview = gtk_text_view_new ();
 	gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
 	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (textview));

 	for (i = 0; i < poppler_form_field_choice_get_n_items (field); i++) {
 		gchar *item;

 		item = poppler_form_field_choice_get_item (field, i);
 		gtk_text_buffer_insert_at_cursor (buffer, item, strlen (item));
 		gtk_text_buffer_insert_at_cursor (buffer, "\n", strlen ("\n"));
 		g_free (item);

 		if (poppler_form_field_choice_is_item_selected (field, i))
 			*selected = i;
 	}

 	gtk_container_add (GTK_CONTAINER (swindow), textview);
 	gtk_widget_show (textview);

 	gtk_table_attach (GTK_TABLE (table), swindow, 1, 2, *row, *row + 1,
 			  GTK_FILL, GTK_FILL, 0, 0);
 	gtk_widget_show (swindow);

 	*row += 1;
 }

 static void
 pgd_form_field_view_set_field (GtkWidget        *field_view,
 			       PopplerFormField *field)
 {
 	GtkWidget     *alignment;
 	GtkWidget     *table;
         PopplerAction *action;
 	GEnumValue    *enum_value;
 	gchar         *text;
 	gint           row = 0;

 	alignment = gtk_bin_get_child (GTK_BIN (field_view));
 	if (alignment) {
 		gtk_container_remove (GTK_CONTAINER (field_view), alignment);
 	}

 	alignment = gtk_alignment_new (0.5, 0.5, 1, 1);
 	gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 5, 5, 12, 5);
 	gtk_container_add (GTK_CONTAINER (field_view), alignment);
 	gtk_widget_show (alignment);

 	if (!field)
 		return;

 	table = gtk_table_new (13, 2, FALSE);
 	gtk_table_set_col_spacings (GTK_TABLE (table), 6);
 	gtk_table_set_row_spacings (GTK_TABLE (table), 6);

 	text = poppler_form_field_get_name (field);
 	if (text) {
 		pgd_table_add_property (GTK_TABLE (table), "<b>Name:</b>", text, &row);
 		g_free (text);
 	}
 	text = poppler_form_field_get_partial_name (field);
 	if (text) {
 		pgd_table_add_property (GTK_TABLE (table), "<b>Partial Name:</b>", text, &row);
 		g_free (text);
 	}
 	text = poppler_form_field_get_mapping_name (field);
 	if (text) {
 		pgd_table_add_property (GTK_TABLE (table), "<b>Mapping Name:</b>", text, &row);
 		g_free (text);
 	}

         action = poppler_form_field_get_action (field);
         if (action) {
                 GtkWidget *action_view;

                 action_view = pgd_action_view_new (NULL);
                 pgd_action_view_set_action (action_view, action);
                 pgd_table_add_property_with_custom_widget (GTK_TABLE (table), "<b>Action:</b>", action_view, &row);
                 gtk_widget_show (action_view);
         }

 	switch (poppler_form_field_get_field_type (field)) {
 	case POPPLER_FORM_FIELD_BUTTON:
 		enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_BUTTON_TYPE),
 					       poppler_form_field_button_get_button_type (field));
 		pgd_table_add_property (GTK_TABLE (table), "<b>Button Type:</b>", enum_value->value_name, &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Button State:</b>",
 					poppler_form_field_button_get_state (field) ? "Active" : "Inactive", &row);
 		break;
 	case POPPLER_FORM_FIELD_TEXT:
 		enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_TEXT_TYPE),
 					       poppler_form_field_text_get_text_type (field));
 		pgd_table_add_property (GTK_TABLE (table), "<b>Text Type:</b>", enum_value->value_name, &row);

 		text = poppler_form_field_text_get_text (field);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Contents:</b>", text, &row);
 		g_free (text);

 		text = g_strdup_printf ("%d", poppler_form_field_text_get_max_len (field));
 		pgd_table_add_property (GTK_TABLE (table), "<b>Max Length:</b>", text, &row);
 		g_free (text);

 		pgd_table_add_property (GTK_TABLE (table), "<b>Do spellcheck:</b>",
 					poppler_form_field_text_do_spell_check (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Do scroll:</b>",
 					poppler_form_field_text_do_scroll (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Rich Text:</b>",
 					poppler_form_field_text_is_rich_text (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Pasword type:</b>",
 					poppler_form_field_text_is_password (field) ? "Yes" : "No", &row);
 		break;
 	case POPPLER_FORM_FIELD_CHOICE: {
 		gchar *item;
 		gint   selected = -1;

 		enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_CHOICE_TYPE),
 					       poppler_form_field_choice_get_choice_type (field));
 		pgd_table_add_property (GTK_TABLE (table), "<b>Choice Type:</b>", enum_value->value_name, &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Editable:</b>",
 					poppler_form_field_choice_is_editable (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Multiple Selection:</b>",
 					poppler_form_field_choice_can_select_multiple (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Do spellcheck:</b>",
 					poppler_form_field_choice_do_spell_check (field) ? "Yes" : "No", &row);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Commit on Change:</b>",
 					poppler_form_field_choice_commit_on_change (field) ? "Yes" : "No", &row);

 		text = g_strdup_printf ("%d", poppler_form_field_choice_get_n_items (field));
 		pgd_table_add_property (GTK_TABLE (table), "<b>Number of items:</b>", text, &row);
 		g_free (text);

 		pgd_form_field_view_add_choice_items (GTK_TABLE (table), field, &selected, &row);

 		if (selected >= 0 && poppler_form_field_choice_get_n_items (field) > selected) {
 			item = poppler_form_field_choice_get_item (field, selected);
 			text = g_strdup_printf ("%d (%s)", selected, item);
 			g_free (item);
 			pgd_table_add_property (GTK_TABLE (table), "<b>Selected item:</b>", text, &row);
 			g_free (text);
 		}

 		text = poppler_form_field_choice_get_text (field);
 		pgd_table_add_property (GTK_TABLE (table), "<b>Contents:</b>", text, &row);
 		g_free (text);
 	}
 		break;
 	case POPPLER_FORM_FIELD_SIGNATURE:
 	case POPPLER_FORM_FIELD_UNKNOWN:
 		break;
 	default:
 		g_assert_not_reached ();
 	}

 	gtk_container_add (GTK_CONTAINER (alignment), table);
 	gtk_widget_show (table);
 }

 const gchar *
 get_form_field_type (PopplerFormField *field)
 {
 	switch (poppler_form_field_get_field_type (field)) {
 	case POPPLER_FORM_FIELD_TEXT:
 		return "Text";
 	case POPPLER_FORM_FIELD_BUTTON:
 		return "Button";
 	case POPPLER_FORM_FIELD_CHOICE:
 		return "Choice";
 	case POPPLER_FORM_FIELD_SIGNATURE:
 		return "Signature";
 	case POPPLER_FORM_FIELD_UNKNOWN:
 	default:
 		break;
 	}

 	return "Unknown";
 }

 static void
 pgd_forms_get_form_fields (GtkWidget    *button,
 			   PgdFormsDemo *demo)
 {
 	PopplerPage *page;
 	GList       *mapping, *l;
 	gint         n_fields;
 	GTimer      *timer;

 	gtk_list_store_clear (demo->model);
 	pgd_form_field_view_set_field (demo->field_view, NULL);

 	page = poppler_document_get_page (demo->doc, demo->page);
 	if (!page)
 		return;

 	timer = g_timer_new ();
 	mapping = poppler_page_get_form_field_mapping (page);
 	g_timer_stop (timer);

 	n_fields = g_list_length (mapping);
 	if (n_fields > 0) {
 		gchar *str;

 		str = g_strdup_printf ("<i>%d form fields found in %.4f seconds</i>",
 				       n_fields, g_timer_elapsed (timer, NULL));
 		gtk_label_set_markup (GTK_LABEL (demo->timer_label), str);
 		g_free (str);
 	} else {
 		gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No form fields found</i>");
 	}

 	g_timer_destroy (timer);

 	for (l = mapping; l; l = g_list_next (l)) {
 		PopplerFormFieldMapping *fmapping;
 		GtkTreeIter              iter;
 		gchar                   *x1, *y1, *x2, *y2;

 		fmapping = (PopplerFormFieldMapping *)l->data;

 		x1 = g_strdup_printf ("%.2f", fmapping->area.x1);
 		y1 = g_strdup_printf ("%.2f", fmapping->area.y1);
 		x2 = g_strdup_printf ("%.2f", fmapping->area.x2);
 		y2 = g_strdup_printf ("%.2f", fmapping->area.y2);

 		gtk_list_store_append (demo->model, &iter);
 		gtk_list_store_set (demo->model, &iter,
 				    FORMS_FIELD_TYPE_COLUMN, get_form_field_type (fmapping->field),
 				    FORMS_ID_COLUMN, poppler_form_field_get_id (fmapping->field),
 				    FORMS_READ_ONLY_COLUMN, poppler_form_field_is_read_only (fmapping->field),
 				    FORMS_X1_COLUMN, x1,
 				    FORMS_Y1_COLUMN, y1,
 				    FORMS_X2_COLUMN, x2,
 				    FORMS_Y2_COLUMN, y2,
 				    FORMS_FIELD_COLUMN, fmapping->field,
 				    -1);
 		g_free (x1);
 		g_free (y1);
 		g_free (x2);
 		g_free (y2);
 	}

 	poppler_page_free_form_field_mapping (mapping);
 	g_object_unref (page);
 }

 static void
 pgd_forms_page_selector_value_changed (GtkSpinButton *spinbutton,
 				       PgdFormsDemo  *demo)
 {
 	demo->page = (gint)gtk_spin_button_get_value (spinbutton) - 1;
 }

 static void
 pgd_forms_selection_changed (GtkTreeSelection *treeselection,
 			     PgdFormsDemo     *demo)
 {
 	GtkTreeModel *model;
 	GtkTreeIter   iter;

 	if (gtk_tree_selection_get_selected (treeselection, &model, &iter)) {
 		PopplerFormField *field;

 		gtk_tree_model_get (model, &iter,
 				    FORMS_FIELD_COLUMN, &field,
 				    -1);
 		pgd_form_field_view_set_field (demo->field_view, field);
 		g_object_unref (field);
 	}
 }

 GtkWidget *
 pgd_forms_create_widget (PopplerDocument *document)
 {
 	PgdFormsDemo     *demo;
 	GtkWidget        *label;
 	GtkWidget        *vbox;
 	GtkWidget        *hbox, *page_selector;
 	GtkWidget        *button;
 	GtkWidget        *hpaned;
 	GtkWidget        *swindow, *treeview;
 	GtkTreeSelection *selection;
 	GtkCellRenderer  *renderer;
 	gchar            *str;
 	gint              n_pages;

 	demo = g_new0 (PgdFormsDemo, 1);

 	demo->doc = g_object_ref (document);

 	n_pages = poppler_document_get_n_pages (document);

 	vbox = gtk_vbox_new (FALSE, 12);

 	hbox = gtk_hbox_new (FALSE, 6);

 	label = gtk_label_new ("Page:");
 	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
 	gtk_widget_show (label);

 	page_selector = gtk_spin_button_new_with_range (1, n_pages, 1);
 	g_signal_connect (G_OBJECT (page_selector), "value-changed",
 			  G_CALLBACK (pgd_forms_page_selector_value_changed),
 			  (gpointer)demo);
 	gtk_box_pack_start (GTK_BOX (hbox), page_selector, FALSE, TRUE, 0);
 	gtk_widget_show (page_selector);

 	str = g_strdup_printf ("of %d", n_pages);
 	label = gtk_label_new (str);
 	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
 	gtk_widget_show (label);
 	g_free (str);

 	button = gtk_button_new_with_label ("Get Forms Fields");
 	g_signal_connect (G_OBJECT (button), "clicked",
 			  G_CALLBACK (pgd_forms_get_form_fields),
 			  (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);

 	demo->timer_label = gtk_label_new (NULL);
 	gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No form fields found</i>");
 	g_object_set (G_OBJECT (demo->timer_label), "xalign", 1.0, NULL);
 	gtk_box_pack_start (GTK_BOX (vbox), demo->timer_label, FALSE, TRUE, 0);
 	gtk_widget_show (demo->timer_label);

 	hpaned = gtk_hpaned_new ();

 	demo->field_view = pgd_form_field_view_new ();

 	swindow = gtk_scrolled_window_new (NULL, NULL);
 	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
 					GTK_POLICY_AUTOMATIC,
 					GTK_POLICY_AUTOMATIC);

 	demo->model = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING,
 					  G_TYPE_INT, G_TYPE_BOOLEAN,
 					  G_TYPE_STRING,
 					  G_TYPE_STRING, G_TYPE_STRING,
 					  G_TYPE_STRING, G_TYPE_OBJECT);
 	treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL (demo->model));

 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     0, "Form Field Type",
 						     renderer,
 						     "text", FORMS_FIELD_TYPE_COLUMN,
 						     NULL);

 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     1, "Form Field Id",
 						     renderer,
 						     "text", FORMS_ID_COLUMN,
 						     NULL);

 	renderer = gtk_cell_renderer_toggle_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     2, "Read Only",
 						     renderer,
 						     "active", FORMS_READ_ONLY_COLUMN,
 						     NULL);

 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     3, "X1",
 						     renderer,
 						     "text", FORMS_X1_COLUMN,
 						     NULL);
 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     4, "Y1",
 						     renderer,
 						     "text", FORMS_Y1_COLUMN,
 						     NULL);
 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     5, "X2",
 						     renderer,
 						     "text", FORMS_X2_COLUMN,
 						     NULL);
 	renderer = gtk_cell_renderer_text_new ();
 	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
 						     6, "Y2",
 						     renderer,
 						     "text", FORMS_Y2_COLUMN,
 						     NULL);

 	selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
 	g_signal_connect (G_OBJECT (selection), "changed",
 			  G_CALLBACK (pgd_forms_selection_changed),
 			  (gpointer)demo);

 	gtk_container_add (GTK_CONTAINER (swindow), treeview);
 	gtk_widget_show (treeview);

 	gtk_paned_add1 (GTK_PANED (hpaned), swindow);
 	gtk_widget_show (swindow);

 	gtk_paned_add2 (GTK_PANED (hpaned), demo->field_view);
 	gtk_widget_show (demo->field_view);

 	gtk_paned_set_position (GTK_PANED (hpaned), 300);

 	gtk_box_pack_start (GTK_BOX (vbox), hpaned, TRUE, TRUE, 0);
 	gtk_widget_show (hpaned);

 	g_object_weak_ref (G_OBJECT (vbox),
 			   (GWeakNotify)pgd_forms_free,
 			   demo);

 	return vbox;
 }
	/*
	* Copyright (C) 2007 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 <gtk/gtk.h>
	#include <string.h>

	#include "forms.h"
	#include "utils.h"

	enum {
	FORMS_FIELD_TYPE_COLUMN,
	FORMS_ID_COLUMN,
	FORMS_READ_ONLY_COLUMN,
	FORMS_X1_COLUMN,
	FORMS_Y1_COLUMN,
	FORMS_X2_COLUMN,
	FORMS_Y2_COLUMN,
	FORMS_FIELD_COLUMN,
	N_COLUMNS
	};

	typedef struct {
	PopplerDocument *doc;

	GtkListStore *model;
	GtkWidget *field_view;
	GtkWidget *timer_label;

	gint page;
	} PgdFormsDemo;

	static void
	pgd_forms_free (PgdFormsDemo *demo)
	{
	if (!demo)
	return;

	if (demo->doc) {
	g_object_unref (demo->doc);
	demo->doc = NULL;
	}

	if (demo->model) {
	g_object_unref (demo->model);
	demo->model = NULL;
	}

	g_free (demo);
	}

	static GtkWidget *
	pgd_form_field_view_new (void)
	{
	GtkWidget frame, label;

	frame = gtk_frame_new (NULL);
	gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_NONE);
	label = gtk_label_new (NULL);
	gtk_label_set_markup (GTK_LABEL (label), "<b>Form Field Properties</b>");
	gtk_frame_set_label_widget (GTK_FRAME (frame), label);
	gtk_widget_show (label);

	return frame;
	}

	static void
	pgd_form_field_view_add_choice_items (GtkTable *table,
	PopplerFormField *field,
	gint *selected,
	gint *row)
	{
	GtkWidget *label;
	GtkWidget textview, swindow;
	GtkTextBuffer *buffer;
	gint i;

	label = gtk_label_new (NULL);
	g_object_set (G_OBJECT (label), "xalign", 0.0, NULL);
	gtk_label_set_markup (GTK_LABEL (label), "<b>Items:</b>");
	gtk_table_attach (GTK_TABLE (table), label, 0, 1, row, row + 1,
	GTK_FILL, GTK_FILL, 0, 0);
	gtk_widget_show (label);

	swindow = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
	GTK_POLICY_AUTOMATIC,
	GTK_POLICY_AUTOMATIC);

	textview = gtk_text_view_new ();
	gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
	buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (textview));

	for (i = 0; i < poppler_form_field_choice_get_n_items (field); i++) {
	gchar *item;

	item = poppler_form_field_choice_get_item (field, i);
	gtk_text_buffer_insert_at_cursor (buffer, item, strlen (item));
	gtk_text_buffer_insert_at_cursor (buffer, "\n", strlen ("\n"));
	g_free (item);

	if (poppler_form_field_choice_is_item_selected (field, i))
	*selected = i;
	}

	gtk_container_add (GTK_CONTAINER (swindow), textview);
	gtk_widget_show (textview);

	gtk_table_attach (GTK_TABLE (table), swindow, 1, 2, row, row + 1,
	GTK_FILL, GTK_FILL, 0, 0);
	gtk_widget_show (swindow);

	*row += 1;
	}

	static void
	pgd_form_field_view_set_field (GtkWidget *field_view,
	PopplerFormField *field)
	{
	GtkWidget *alignment;
	GtkWidget *table;
	PopplerAction *action;
	GEnumValue *enum_value;
	gchar *text;
	gint row = 0;

	alignment = gtk_bin_get_child (GTK_BIN (field_view));
	if (alignment) {
	gtk_container_remove (GTK_CONTAINER (field_view), alignment);
	}

	alignment = gtk_alignment_new (0.5, 0.5, 1, 1);
	gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 5, 5, 12, 5);
	gtk_container_add (GTK_CONTAINER (field_view), alignment);
	gtk_widget_show (alignment);

	if (!field)
	return;

	table = gtk_table_new (13, 2, FALSE);
	gtk_table_set_col_spacings (GTK_TABLE (table), 6);
	gtk_table_set_row_spacings (GTK_TABLE (table), 6);

	text = poppler_form_field_get_name (field);
	if (text) {
	pgd_table_add_property (GTK_TABLE (table), "<b>Name:</b>", text, &row);
	g_free (text);
	}
	text = poppler_form_field_get_partial_name (field);
	if (text) {
	pgd_table_add_property (GTK_TABLE (table), "<b>Partial Name:</b>", text, &row);
	g_free (text);
	}
	text = poppler_form_field_get_mapping_name (field);
	if (text) {
	pgd_table_add_property (GTK_TABLE (table), "<b>Mapping Name:</b>", text, &row);
	g_free (text);
	}

	action = poppler_form_field_get_action (field);
	if (action) {
	GtkWidget *action_view;

	action_view = pgd_action_view_new (NULL);
	pgd_action_view_set_action (action_view, action);
	pgd_table_add_property_with_custom_widget (GTK_TABLE (table), "<b>Action:</b>", action_view, &row);
	gtk_widget_show (action_view);
	}

	switch (poppler_form_field_get_field_type (field)) {
	case POPPLER_FORM_FIELD_BUTTON:
	enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_BUTTON_TYPE),
	poppler_form_field_button_get_button_type (field));
	pgd_table_add_property (GTK_TABLE (table), "<b>Button Type:</b>", enum_value->value_name, &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Button State:</b>",
	poppler_form_field_button_get_state (field) ? "Active" : "Inactive", &row);
	break;
	case POPPLER_FORM_FIELD_TEXT:
	enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_TEXT_TYPE),
	poppler_form_field_text_get_text_type (field));
	pgd_table_add_property (GTK_TABLE (table), "<b>Text Type:</b>", enum_value->value_name, &row);

	text = poppler_form_field_text_get_text (field);
	pgd_table_add_property (GTK_TABLE (table), "<b>Contents:</b>", text, &row);
	g_free (text);

	text = g_strdup_printf ("%d", poppler_form_field_text_get_max_len (field));
	pgd_table_add_property (GTK_TABLE (table), "<b>Max Length:</b>", text, &row);
	g_free (text);

	pgd_table_add_property (GTK_TABLE (table), "<b>Do spellcheck:</b>",
	poppler_form_field_text_do_spell_check (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Do scroll:</b>",
	poppler_form_field_text_do_scroll (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Rich Text:</b>",
	poppler_form_field_text_is_rich_text (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Pasword type:</b>",
	poppler_form_field_text_is_password (field) ? "Yes" : "No", &row);
	break;
	case POPPLER_FORM_FIELD_CHOICE: {
	gchar *item;
	gint selected = -1;

	enum_value = g_enum_get_value ((GEnumClass *) g_type_class_ref (POPPLER_TYPE_FORM_CHOICE_TYPE),
	poppler_form_field_choice_get_choice_type (field));
	pgd_table_add_property (GTK_TABLE (table), "<b>Choice Type:</b>", enum_value->value_name, &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Editable:</b>",
	poppler_form_field_choice_is_editable (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Multiple Selection:</b>",
	poppler_form_field_choice_can_select_multiple (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Do spellcheck:</b>",
	poppler_form_field_choice_do_spell_check (field) ? "Yes" : "No", &row);
	pgd_table_add_property (GTK_TABLE (table), "<b>Commit on Change:</b>",
	poppler_form_field_choice_commit_on_change (field) ? "Yes" : "No", &row);

	text = g_strdup_printf ("%d", poppler_form_field_choice_get_n_items (field));
	pgd_table_add_property (GTK_TABLE (table), "<b>Number of items:</b>", text, &row);
	g_free (text);

	pgd_form_field_view_add_choice_items (GTK_TABLE (table), field, &selected, &row);

	if (selected >= 0 && poppler_form_field_choice_get_n_items (field) > selected) {
	item = poppler_form_field_choice_get_item (field, selected);
	text = g_strdup_printf ("%d (%s)", selected, item);
	g_free (item);
	pgd_table_add_property (GTK_TABLE (table), "<b>Selected item:</b>", text, &row);
	g_free (text);
	}

	text = poppler_form_field_choice_get_text (field);
	pgd_table_add_property (GTK_TABLE (table), "<b>Contents:</b>", text, &row);
	g_free (text);
	}
	break;
	case POPPLER_FORM_FIELD_SIGNATURE:
	case POPPLER_FORM_FIELD_UNKNOWN:
	break;
	default:
	g_assert_not_reached ();
	}

	gtk_container_add (GTK_CONTAINER (alignment), table);
	gtk_widget_show (table);
	}

	const gchar *
	get_form_field_type (PopplerFormField *field)
	{
	switch (poppler_form_field_get_field_type (field)) {
	case POPPLER_FORM_FIELD_TEXT:
	return "Text";
	case POPPLER_FORM_FIELD_BUTTON:
	return "Button";
	case POPPLER_FORM_FIELD_CHOICE:
	return "Choice";
	case POPPLER_FORM_FIELD_SIGNATURE:
	return "Signature";
	case POPPLER_FORM_FIELD_UNKNOWN:
	default:
	break;
	}

	return "Unknown";
	}

	static void
	pgd_forms_get_form_fields (GtkWidget *button,
	PgdFormsDemo *demo)
	{
	PopplerPage *page;
	GList mapping, l;
	gint n_fields;
	GTimer *timer;

	gtk_list_store_clear (demo->model);
	pgd_form_field_view_set_field (demo->field_view, NULL);

	page = poppler_document_get_page (demo->doc, demo->page);
	if (!page)
	return;

	timer = g_timer_new ();
	mapping = poppler_page_get_form_field_mapping (page);
	g_timer_stop (timer);

	n_fields = g_list_length (mapping);
	if (n_fields > 0) {
	gchar *str;

	str = g_strdup_printf ("<i>%d form fields found in %.4f seconds</i>",
	n_fields, g_timer_elapsed (timer, NULL));
	gtk_label_set_markup (GTK_LABEL (demo->timer_label), str);
	g_free (str);
	} else {
	gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No form fields found</i>");
	}

	g_timer_destroy (timer);

	for (l = mapping; l; l = g_list_next (l)) {
	PopplerFormFieldMapping *fmapping;
	GtkTreeIter iter;
	gchar x1, y1, x2, y2;

	fmapping = (PopplerFormFieldMapping *)l->data;

	x1 = g_strdup_printf ("%.2f", fmapping->area.x1);
	y1 = g_strdup_printf ("%.2f", fmapping->area.y1);
	x2 = g_strdup_printf ("%.2f", fmapping->area.x2);
	y2 = g_strdup_printf ("%.2f", fmapping->area.y2);

	gtk_list_store_append (demo->model, &iter);
	gtk_list_store_set (demo->model, &iter,
	FORMS_FIELD_TYPE_COLUMN, get_form_field_type (fmapping->field),
	FORMS_ID_COLUMN, poppler_form_field_get_id (fmapping->field),
	FORMS_READ_ONLY_COLUMN, poppler_form_field_is_read_only (fmapping->field),
	FORMS_X1_COLUMN, x1,
	FORMS_Y1_COLUMN, y1,
	FORMS_X2_COLUMN, x2,
	FORMS_Y2_COLUMN, y2,
	FORMS_FIELD_COLUMN, fmapping->field,
	-1);
	g_free (x1);
	g_free (y1);
	g_free (x2);
	g_free (y2);
	}

	poppler_page_free_form_field_mapping (mapping);
	g_object_unref (page);
	}

	static void
	pgd_forms_page_selector_value_changed (GtkSpinButton *spinbutton,
	PgdFormsDemo *demo)
	{
	demo->page = (gint)gtk_spin_button_get_value (spinbutton) - 1;
	}

	static void
	pgd_forms_selection_changed (GtkTreeSelection *treeselection,
	PgdFormsDemo *demo)
	{
	GtkTreeModel *model;
	GtkTreeIter iter;

	if (gtk_tree_selection_get_selected (treeselection, &model, &iter)) {
	PopplerFormField *field;

	gtk_tree_model_get (model, &iter,
	FORMS_FIELD_COLUMN, &field,
	-1);
	pgd_form_field_view_set_field (demo->field_view, field);
	g_object_unref (field);
	}
	}

	GtkWidget *
	pgd_forms_create_widget (PopplerDocument *document)
	{
	PgdFormsDemo *demo;
	GtkWidget *label;
	GtkWidget *vbox;
	GtkWidget hbox, page_selector;
	GtkWidget *button;
	GtkWidget *hpaned;
	GtkWidget swindow, treeview;
	GtkTreeSelection *selection;
	GtkCellRenderer *renderer;
	gchar *str;
	gint n_pages;

	demo = g_new0 (PgdFormsDemo, 1);

	demo->doc = g_object_ref (document);

	n_pages = poppler_document_get_n_pages (document);

	vbox = gtk_vbox_new (FALSE, 12);

	hbox = gtk_hbox_new (FALSE, 6);

	label = gtk_label_new ("Page:");
	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
	gtk_widget_show (label);

	page_selector = gtk_spin_button_new_with_range (1, n_pages, 1);
	g_signal_connect (G_OBJECT (page_selector), "value-changed",
	G_CALLBACK (pgd_forms_page_selector_value_changed),
	(gpointer)demo);
	gtk_box_pack_start (GTK_BOX (hbox), page_selector, FALSE, TRUE, 0);
	gtk_widget_show (page_selector);

	str = g_strdup_printf ("of %d", n_pages);
	label = gtk_label_new (str);
	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
	gtk_widget_show (label);
	g_free (str);

	button = gtk_button_new_with_label ("Get Forms Fields");
	g_signal_connect (G_OBJECT (button), "clicked",
	G_CALLBACK (pgd_forms_get_form_fields),
	(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);

	demo->timer_label = gtk_label_new (NULL);
	gtk_label_set_markup (GTK_LABEL (demo->timer_label), "<i>No form fields found</i>");
	g_object_set (G_OBJECT (demo->timer_label), "xalign", 1.0, NULL);
	gtk_box_pack_start (GTK_BOX (vbox), demo->timer_label, FALSE, TRUE, 0);
	gtk_widget_show (demo->timer_label);

	hpaned = gtk_hpaned_new ();

	demo->field_view = pgd_form_field_view_new ();

	swindow = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
	GTK_POLICY_AUTOMATIC,
	GTK_POLICY_AUTOMATIC);

	demo->model = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING,
	G_TYPE_INT, G_TYPE_BOOLEAN,
	G_TYPE_STRING,
	G_TYPE_STRING, G_TYPE_STRING,
	G_TYPE_STRING, G_TYPE_OBJECT);
	treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL (demo->model));

	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	0, "Form Field Type",
	renderer,
	"text", FORMS_FIELD_TYPE_COLUMN,
	NULL);

	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	1, "Form Field Id",
	renderer,
	"text", FORMS_ID_COLUMN,
	NULL);

	renderer = gtk_cell_renderer_toggle_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	2, "Read Only",
	renderer,
	"active", FORMS_READ_ONLY_COLUMN,
	NULL);

	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	3, "X1",
	renderer,
	"text", FORMS_X1_COLUMN,
	NULL);
	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	4, "Y1",
	renderer,
	"text", FORMS_Y1_COLUMN,
	NULL);
	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	5, "X2",
	renderer,
	"text", FORMS_X2_COLUMN,
	NULL);
	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
	6, "Y2",
	renderer,
	"text", FORMS_Y2_COLUMN,
	NULL);

	selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
	g_signal_connect (G_OBJECT (selection), "changed",
	G_CALLBACK (pgd_forms_selection_changed),
	(gpointer)demo);

	gtk_container_add (GTK_CONTAINER (swindow), treeview);
	gtk_widget_show (treeview);

	gtk_paned_add1 (GTK_PANED (hpaned), swindow);
	gtk_widget_show (swindow);

	gtk_paned_add2 (GTK_PANED (hpaned), demo->field_view);
	gtk_widget_show (demo->field_view);

	gtk_paned_set_position (GTK_PANED (hpaned), 300);

	gtk_box_pack_start (GTK_BOX (vbox), hpaned, TRUE, TRUE, 0);
	gtk_widget_show (hpaned);

	g_object_weak_ref (G_OBJECT (vbox),
	(GWeakNotify)pgd_forms_free,
	demo);

	return vbox;
	}