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Current File : //proc/thread-self/root/usr/share/emscripten/tests/poppler/glib/demo/find.c
/*
* Copyright (C) 2008 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 "find.h"
enum {
TITLE_COLUMN,
X1_COLUMN,
Y1_COLUMN,
X2_COLUMN,
Y2_COLUMN,
VISIBLE_COLUMN,
N_COLUMNS
};
typedef struct {
PopplerDocument *doc;
GtkTreeModel *model;
GtkWidget *entry;
GtkWidget *progress;
gint n_pages;
gint page_index;
guint idle_id;
} PgdFindDemo;
static void
pgd_find_free (PgdFindDemo *demo)
{
if (!demo)
return;
if (demo->idle_id > 0) {
g_source_remove (demo->idle_id);
demo->idle_id = 0;
}
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 void
pgd_find_update_progress (PgdFindDemo *demo,
gint scanned)
{
gchar *str;
str = g_strdup_printf ("Searching ... (%d%%)",
MIN (scanned * 100 / demo->n_pages, 100));
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (demo->progress), str);
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (demo->progress),
MIN ((gdouble)scanned / demo->n_pages, 1.0));
g_free (str);
}
static gboolean
pgd_find_find_text (PgdFindDemo *demo)
{
PopplerPage *page;
GList *matches;
GTimer *timer;
page = poppler_document_get_page (demo->doc, demo->page_index);
if (!page) {
demo->page_index++;
return demo->page_index < demo->n_pages;
}
timer = g_timer_new ();
matches = poppler_page_find_text (page, gtk_entry_get_text (GTK_ENTRY (demo->entry)));
g_timer_stop (timer);
if (matches) {
GtkTreeIter iter;
gchar *str;
GList *l;
gint n_match = 0;
str = g_strdup_printf ("%d matches found on page %d in %.4f seconds",
g_list_length (matches), demo->page_index + 1,
g_timer_elapsed (timer, NULL));
gtk_tree_store_append (GTK_TREE_STORE (demo->model), &iter, NULL);
gtk_tree_store_set (GTK_TREE_STORE (demo->model), &iter,
TITLE_COLUMN, str,
VISIBLE_COLUMN, FALSE,
-1);
g_free (str);
for (l = matches; l && l->data; l = g_list_next (l)) {
PopplerRectangle *rect = (PopplerRectangle *)l->data;
GtkTreeIter iter_child;
gchar *x1, *y1, *x2, *y2;
str = g_strdup_printf ("Match %d", ++n_match);
x1 = g_strdup_printf ("%.2f", rect->x1);
y1 = g_strdup_printf ("%.2f", rect->y1);
x2 = g_strdup_printf ("%.2f", rect->x2);
y2 = g_strdup_printf ("%.2f", rect->y2);
gtk_tree_store_append (GTK_TREE_STORE (demo->model), &iter_child, &iter);
gtk_tree_store_set (GTK_TREE_STORE (demo->model), &iter_child,
TITLE_COLUMN, str,
X1_COLUMN, x1,
Y1_COLUMN, y1,
X2_COLUMN, x2,
Y2_COLUMN, y2,
VISIBLE_COLUMN, TRUE,
-1);
g_free (str);
g_free (x1);
g_free (y1);
g_free (x2);
g_free (y2);
poppler_rectangle_free (rect);
}
g_list_free (matches);
}
g_timer_destroy (timer);
g_object_unref (page);
demo->page_index++;
pgd_find_update_progress (demo, demo->page_index);
return demo->page_index < demo->n_pages;
}
static void
pgd_find_button_clicked (GtkButton *button,
PgdFindDemo *demo)
{
gtk_tree_store_clear (GTK_TREE_STORE (demo->model));
demo->page_index = 0;
pgd_find_update_progress (demo, demo->page_index);
if (demo->idle_id > 0)
g_source_remove (demo->idle_id);
demo->idle_id = g_idle_add ((GSourceFunc)pgd_find_find_text, demo);
}
static void
pgd_find_button_sensitivity_cb (GtkWidget *button,
GtkEntry *entry)
{
const gchar *text;
text = gtk_entry_get_text (entry);
gtk_widget_set_sensitive (button, text != NULL && text[0] != '\0');
}
GtkWidget *
pgd_find_create_widget (PopplerDocument *document)
{
PgdFindDemo *demo;
GtkWidget *vbox, *hbox;
GtkWidget *button;
GtkWidget *swindow;
GtkWidget *treeview;
GtkCellRenderer *renderer;
demo = g_new0 (PgdFindDemo, 1);
demo->doc = g_object_ref (document);
demo->n_pages = poppler_document_get_n_pages (document);
vbox = gtk_vbox_new (FALSE, 12);
hbox = gtk_hbox_new (FALSE, 6);
demo->entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (hbox), demo->entry, FALSE, TRUE, 0);
gtk_widget_show (demo->entry);
demo->progress = gtk_progress_bar_new ();
gtk_progress_bar_set_ellipsize (GTK_PROGRESS_BAR (demo->progress),
PANGO_ELLIPSIZE_END);
gtk_box_pack_start (GTK_BOX (hbox), demo->progress, TRUE, TRUE, 0);
gtk_widget_show (demo->progress);
button = gtk_button_new_with_label ("Find");
gtk_widget_set_sensitive (button, FALSE);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (pgd_find_button_clicked),
(gpointer)demo);
g_signal_connect_swapped (G_OBJECT (demo->entry), "changed",
G_CALLBACK (pgd_find_button_sensitivity_cb),
(gpointer)button);
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, 6);
gtk_widget_show (hbox);
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_TREE_MODEL (
gtk_tree_store_new (N_COLUMNS,
G_TYPE_STRING,
G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_BOOLEAN));
treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL (demo->model));
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
GTK_SELECTION_NONE);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
TITLE_COLUMN, "Matches",
renderer,
"text", TITLE_COLUMN,
NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
X1_COLUMN, "X1",
renderer,
"text", X1_COLUMN,
"visible", VISIBLE_COLUMN,
NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
Y1_COLUMN, "Y1",
renderer,
"text", Y1_COLUMN,
"visible", VISIBLE_COLUMN,
NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
X2_COLUMN, "X2",
renderer,
"text", X2_COLUMN,
"visible", VISIBLE_COLUMN,
NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
Y2_COLUMN, "Y2",
renderer,
"text", Y2_COLUMN,
"visible", VISIBLE_COLUMN,
NULL);
gtk_container_add (GTK_CONTAINER (swindow), treeview);
gtk_widget_show (treeview);
gtk_box_pack_start (GTK_BOX (vbox), swindow, TRUE, TRUE, 0);
gtk_widget_show (swindow);
g_object_weak_ref (G_OBJECT (vbox),
(GWeakNotify)pgd_find_free,
(gpointer)demo);
return vbox;
}
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