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Current File : //usr/share/emscripten/tests/poppler/glib/demo/fonts.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 "fonts.h"
enum {
FONTS_NAME_COLUMN,
FONTS_DETAILS_COLUMN,
N_COLUMNS
};
typedef struct {
PopplerDocument *doc;
GtkWidget *treeview;
GtkWidget *progress;
guint idle_id;
} PgdFontsDemo;
static void
pgd_fonts_free (PgdFontsDemo *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;
}
g_free (demo);
}
static void
pdg_fonts_cell_data_func (GtkTreeViewColumn *col,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer user_data)
{
char *name;
char *details;
char *markup;
gtk_tree_model_get (model, iter,
FONTS_NAME_COLUMN, &name,
FONTS_DETAILS_COLUMN, &details,
-1);
if (details) {
markup = g_strdup_printf ("<b><big>%s</big></b>\n<small>%s</small>",
name, details);
} else {
markup = g_strdup_printf ("<b><big>%s</big></b>", name);
}
g_object_set (renderer, "markup", markup, NULL);
g_free (markup);
g_free (details);
g_free (name);
}
static const gchar *
font_type_to_string (PopplerFontType type)
{
switch (type) {
case POPPLER_FONT_TYPE_TYPE1:
return "Type 1";
case POPPLER_FONT_TYPE_TYPE1C:
return "Type 1C";
case POPPLER_FONT_TYPE_TYPE3:
return "Type 3";
case POPPLER_FONT_TYPE_TRUETYPE:
return "TrueType";
case POPPLER_FONT_TYPE_CID_TYPE0:
return "Type 1 (CID)";
case POPPLER_FONT_TYPE_CID_TYPE0C:
return "Type 1C (CID)";
case POPPLER_FONT_TYPE_CID_TYPE2:
return "TrueType (CID)";
default:
return "Unknown font type";
}
}
static void
pgd_fonts_update_progress (PgdFontsDemo *demo,
gint n_pages,
gint scanned)
{
gchar *str;
str = g_strdup_printf ("Scanning fonts (%d%%)",
MIN (scanned * 100 / 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 / n_pages, 1.0));
g_free (str);
}
static gboolean
pgd_fonts_fill_model (PgdFontsDemo *demo)
{
GtkTreeModel *model;
PopplerFontInfo *font_info;
PopplerFontsIter *fonts_iter;
gint n_pages, scanned = 0;
n_pages = poppler_document_get_n_pages (demo->doc);
model = gtk_tree_view_get_model (GTK_TREE_VIEW (demo->treeview));
g_object_ref (model);
gtk_list_store_clear (GTK_LIST_STORE (model));
font_info = poppler_font_info_new (demo->doc);
while (poppler_font_info_scan (font_info, 20, &fonts_iter)) {
pgd_fonts_update_progress (demo, n_pages, scanned);
while (gtk_events_pending ())
gtk_main_iteration ();
scanned += 20;
if (!fonts_iter)
continue;
do {
GtkTreeIter iter;
const gchar *name;
const gchar *type;
const gchar *embedded;
const gchar *filename;
gchar *details;
name = poppler_fonts_iter_get_name (fonts_iter);
if (!name)
name = "No name";
type = font_type_to_string (poppler_fonts_iter_get_font_type (fonts_iter));
if (poppler_fonts_iter_is_embedded (fonts_iter)) {
if (poppler_fonts_iter_is_subset (fonts_iter))
embedded = "Embedded subset";
else
embedded = "Embedded";
} else {
embedded = "Not embedded";
}
filename = poppler_fonts_iter_get_file_name (fonts_iter);
if (filename)
details = g_markup_printf_escaped ("%s\n%s (%s)", type, embedded, filename);
else
details = g_markup_printf_escaped ("%s\n%s", type, embedded);
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
FONTS_NAME_COLUMN, name,
FONTS_DETAILS_COLUMN, details,
-1);
g_free (details);
} while (poppler_fonts_iter_next (fonts_iter));
poppler_fonts_iter_free (fonts_iter);
}
pgd_fonts_update_progress (demo, n_pages, scanned);
g_object_unref (font_info);
g_object_unref (model);
return FALSE;
}
static void
pgd_fonts_scan_button_clicked (GtkButton *button,
PgdFontsDemo *demo)
{
demo->idle_id = g_idle_add ((GSourceFunc)pgd_fonts_fill_model, demo);
}
GtkWidget *
pgd_fonts_create_widget (PopplerDocument *document)
{
PgdFontsDemo *demo;
GtkWidget *vbox;
GtkListStore *model;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
GtkWidget *swindow;
GtkWidget *hbox, *button;
demo = g_new0 (PgdFontsDemo, 1);
demo->doc = g_object_ref (document);
vbox = gtk_vbox_new (FALSE, 12);
hbox = gtk_hbox_new (FALSE, 6);
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 ("Scan");
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (pgd_fonts_scan_button_clicked),
(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, 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);
model = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING, G_TYPE_STRING);
demo->treeview = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (demo->treeview), FALSE);
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (demo->treeview), TRUE);
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (demo->treeview)),
GTK_SELECTION_NONE);
g_object_unref (model);
column = gtk_tree_view_column_new ();
gtk_tree_view_append_column (GTK_TREE_VIEW (demo->treeview), column);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
gtk_tree_view_column_set_cell_data_func (column, renderer,
pdg_fonts_cell_data_func,
NULL, NULL);
gtk_container_add (GTK_CONTAINER (swindow), demo->treeview);
gtk_widget_show (demo->treeview);
gtk_box_pack_start (GTK_BOX (vbox), swindow, TRUE, TRUE, 0);
gtk_widget_show (swindow);
g_object_weak_ref (G_OBJECT (swindow),
(GWeakNotify)pgd_fonts_free,
(gpointer)demo);
return vbox;
}
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