[evince] [libdocument] Add EvDocumentText interface

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 05fdc61391b2d3f13a539ba8c870a4b60342d06a
Author: Daniel Garcia <danigm yaco es>
Date:   Sat Jun 26 15:52:25 2010 +0200

    [libdocument] Add EvDocumentText interface

 libdocument/Makefile.am        |    2 +
 libdocument/ev-document-text.c |   70 +++++++++++++++++++++++++++++++++++++
 libdocument/ev-document-text.h |   75 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 147 insertions(+), 0 deletions(-)
---
diff --git a/libdocument/Makefile.am b/libdocument/Makefile.am
index 357de3d..2d74540 100644
--- a/libdocument/Makefile.am
+++ b/libdocument/Makefile.am
@@ -25,6 +25,7 @@ INST_H_SRC_FILES = 				\
 	ev-document-security.h			\
 	ev-document-thumbnails.h		\
 	ev-document-transition.h		\
+	ev-document-text.h			\
 	ev-file-exporter.h			\
 	ev-file-helpers.h			\
 	ev-form-field.h				\
@@ -74,6 +75,7 @@ libevdocument_la_SOURCES=			\
 	ev-document-transition.c		\
 	ev-document-forms.c			\
 	ev-document-type-builtins.c		\
+	ev-document-text.c			\
 	ev-form-field.c 			\
 	ev-debug.c				\
 	ev-file-exporter.c			\
diff --git a/libdocument/ev-document-text.c b/libdocument/ev-document-text.c
new file mode 100644
index 0000000..fac4356
--- /dev/null
+++ b/libdocument/ev-document-text.c
@@ -0,0 +1,70 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
+/*
+ *  Copyright (C) 2010 Yaco Sistemas, Daniel Garcia <danigm yaco es>
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#include "config.h"
+
+#include "ev-document-text.h"
+
+G_DEFINE_INTERFACE (EvDocumentText, ev_document_text, 0)
+
+static void
+ev_document_text_default_init (EvDocumentTextInterface *klass)
+{
+}
+
+gchar *
+ev_document_text_get_text (EvDocumentText   *document_text,
+			   EvPage           *page)
+{
+	EvDocumentTextInterface *iface = EV_DOCUMENT_TEXT_GET_IFACE (document_text);
+
+	if (!iface->get_text)
+		return NULL;
+
+	return iface->get_text (document_text, page);
+}
+
+
+gboolean
+ev_document_text_get_text_layout (EvDocumentText   *document_text,
+				  EvPage           *page,
+				  EvRectangle     **areas,
+				  guint            *n_areas)
+{
+	EvDocumentTextInterface *iface = EV_DOCUMENT_TEXT_GET_IFACE (document_text);
+
+	if (!iface->get_text_layout)
+		return FALSE;
+
+	return iface->get_text_layout (document_text, page, areas, n_areas);
+}
+
+GdkRegion *
+ev_document_text_get_text_mapping (EvDocumentText *document_text,
+				   EvPage         *page)
+{
+	EvDocumentTextInterface *iface = EV_DOCUMENT_TEXT_GET_IFACE (document_text);
+
+	if (!iface->get_text_mapping)
+		return NULL;
+
+	return iface->get_text_mapping (document_text, page);
+}
diff --git a/libdocument/ev-document-text.h b/libdocument/ev-document-text.h
new file mode 100644
index 0000000..bb6c34b
--- /dev/null
+++ b/libdocument/ev-document-text.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
+/*
+ *  Copyright (C) 2010 Yaco Sistemas, Daniel Garcia <danigm yaco es>
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#if !defined (__EV_EVINCE_DOCUMENT_H_INSIDE__) && !defined (EVINCE_COMPILATION)
+#error "Only <evince-document.h> can be included directly."
+#endif
+
+#ifndef EV_DOCUMENT_TEXT_H
+#define EV_DOCUMENT_TEXT_H
+
+#include <glib-object.h>
+#include <glib.h>
+#include <gdk/gdk.h>
+
+#include "ev-document.h"
+
+G_BEGIN_DECLS
+
+#define EV_TYPE_DOCUMENT_TEXT               (ev_document_text_get_type ())
+#define EV_DOCUMENT_TEXT(o)                 (G_TYPE_CHECK_INSTANCE_CAST ((o), EV_TYPE_DOCUMENT_TEXT, EvDocumentText))
+#define EV_DOCUMENT_TEXT_IFACE(k)           (G_TYPE_CHECK_CLASS_CAST((k), EV_TYPE_DOCUMENT_TEXT, EvDocumentTextInterface))
+#define EV_IS_DOCUMENT_TEXT(o)              (G_TYPE_CHECK_INSTANCE_TYPE ((o), EV_TYPE_DOCUMENT_TEXT))
+#define EV_IS_DOCUMENT_TEXT_IFACE(k)        (G_TYPE_CHECK_CLASS_TYPE ((k), EV_TYPE_DOCUMENT_TEXT))
+#define EV_DOCUMENT_TEXT_GET_IFACE(inst)    (G_TYPE_INSTANCE_GET_INTERFACE ((inst), EV_TYPE_DOCUMENT_TEXT, EvDocumentTextInterface))
+
+typedef struct _EvDocumentText          EvDocumentText;
+typedef struct _EvDocumentTextInterface EvDocumentTextInterface;
+
+struct _EvDocumentTextInterface
+{
+        GTypeInterface base_iface;
+
+        /* Methods */
+        GdkRegion *(* get_text_mapping) (EvDocumentText   *document_text,
+                                         EvPage           *page);
+        gchar     *(* get_text)         (EvDocumentText   *document_text,
+                                         EvPage           *page);
+        gboolean   (* get_text_layout)  (EvDocumentText   *document_text,
+                                         EvPage           *page,
+                                         EvRectangle     **areas,
+                                         guint            *n_areas);
+};
+
+GType      ev_document_text_get_type         (void) G_GNUC_CONST;
+
+gchar     *ev_document_text_get_text         (EvDocumentText  *document_text,
+                                              EvPage          *page);
+gboolean   ev_document_text_get_text_layout  (EvDocumentText  *document_text,
+                                              EvPage          *page,
+                                              EvRectangle    **areas,
+                                              guint           *n_areas);
+GdkRegion *ev_document_text_get_text_mapping (EvDocumentText  *document_text,
+                                              EvPage          *page);
+
+G_END_DECLS
+
+#endif /* EV_DOCUMENT_TEXT_H */