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Current File : //usr/share/emscripten/tests/poppler/glib/demo/forms.c /*
* 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;
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);
}
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;
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 (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;
}
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