ekiga r6691 - trunk/lib/gui

[jpuydt svn gnome org]

Author: jpuydt
Date: Sun Aug 24 22:35:46 2008
New Revision: 6691
URL: http://svn.gnome.org/viewvc/ekiga?rev=6691&view=rev

Log:
New regex-based external link code

Added:
   trunk/lib/gui/gm-text-extlink.c
   trunk/lib/gui/gm-text-extlink.h
Modified:
   trunk/lib/gui/Makefile.am

Modified: trunk/lib/gui/Makefile.am
==============================================================================
--- trunk/lib/gui/Makefile.am	(original)
+++ trunk/lib/gui/Makefile.am	Sun Aug 24 22:35:46 2008
@@ -45,6 +45,8 @@
 	gm-text-anchored-tag.h \
 	gm-text-smiley.c \
 	gm-text-smiley.h \
+	gm-text-extlink.c \
+	gm-text-extlink.h \
 	gm-text-buffer-enhancer.c \
 	gm-text-buffer-enhancer.h
 

Added: trunk/lib/gui/gm-text-extlink.c
==============================================================================
--- (empty file)
+++ trunk/lib/gui/gm-text-extlink.c	Sun Aug 24 22:35:46 2008
@@ -0,0 +1,238 @@
+
+/* Ekiga -- A VoIP and Video-Conferencing application
+ * Copyright (C) 2000-2008 Damien Sandras
+ *
+ * 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 of the License, 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 St, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *
+ * Ekiga is licensed under the GPL license and as a special exception,
+ * you have permission to link or otherwise combine this program with the
+ * programs OPAL, OpenH323 and PWLIB, and distribute the combination,
+ * without applying the requirements of the GNU GPL to the OPAL, OpenH323
+ * and PWLIB programs, as long as you do follow the requirements of the
+ * GNU GPL for all the rest of the software thus combined.
+ */
+
+
+/*
+ *                        gm-text-extlink.c  -  description
+ *                         --------------------------------
+ *   begin                : written in july 2008 by Julien Puydt
+ *   copyright            : (C) 2008 by Julien Puydt
+ *   description          : Implementation of a text decorator for external links
+ *
+ */
+
+#include "gm-text-extlink.h"
+
+#include <string.h>
+#include <sys/types.h>
+#include <regex.h>
+
+static GObjectClass* parent_class = NULL;
+
+typedef struct _GmTextExtlinkPrivate GmTextExtlinkPrivate;
+
+struct _GmTextExtlinkPrivate {
+  regex_t* regex;
+  GtkTextTag* tag;
+};
+
+#define GM_TEXT_EXTLINK_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), GM_TYPE_TEXT_EXTLINK, GmTextExtlinkPrivate))
+
+/* declaration of the GmTextBufferEnhancerHelperIFace code */
+
+static void enhancer_helper_check (GmTextBufferEnhancerHelperIFace* self,
+				   const gchar* full_text,
+				   gint from,
+				   gint* start,
+				   gint* length);
+
+static void enhancer_helper_enhance (GmTextBufferEnhancerHelperIFace* self,
+				     GtkTextBuffer* buffer,
+				     GtkTextIter* iter,
+				     GSList** tags,
+				     const gchar* full_text,
+				     gint* start,
+				     gint length);
+
+static void enhancer_helper_iface_init (gpointer g_iface,
+					gpointer iface_data);
+
+/* implementation of the GmTextBufferEnhancerHelperIFace code */
+
+static void
+enhancer_helper_check (GmTextBufferEnhancerHelperIFace* self,
+		       const gchar* full_text,
+		       gint from,
+		       gint* start,
+		       gint* length)
+{
+  GmTextExtlinkPrivate* priv = GM_TEXT_EXTLINK_GET_PRIVATE (self);
+  gint match;
+  regmatch_t regmatch;
+
+  match = regexec (priv->regex, full_text + from, 1, &regmatch, 0);
+  if (!match) {
+
+    *start = from + regmatch.rm_so;
+    *length = regmatch.rm_eo - regmatch.rm_so;
+  } else {
+
+    *length = 0;
+  }
+}
+
+static void
+enhancer_helper_enhance (GmTextBufferEnhancerHelperIFace* self,
+			 GtkTextBuffer* buffer,
+			 GtkTextIter* iter,
+			 G_GNUC_UNUSED GSList** tags,
+			 const gchar* full_text,
+			 gint* start,
+			 gint length)
+{
+  GmTextExtlinkPrivate* priv = GM_TEXT_EXTLINK_GET_PRIVATE (self);
+  gchar* link = NULL;
+
+  link = g_malloc0 (length + 1);
+
+  strncpy (link, full_text + *start, length);
+
+  gtk_text_buffer_insert_with_tags (buffer, iter, link, length,
+				    priv->tag, NULL);
+  g_free (link);
+
+  *start = *start + length;
+}
+
+static void
+enhancer_helper_iface_init (gpointer g_iface,
+			    G_GNUC_UNUSED gpointer iface_data)
+{
+  GmTextBufferEnhancerHelperIFaceClass* iface = NULL;
+
+  iface = (GmTextBufferEnhancerHelperIFaceClass*)g_iface;
+  iface->do_check = &enhancer_helper_check;
+  iface->do_enhance = &enhancer_helper_enhance;
+}
+
+/* GObject boilerplate */
+
+static void
+gm_text_extlink_dispose (GObject* obj)
+{
+  GmTextExtlinkPrivate* priv = GM_TEXT_EXTLINK_GET_PRIVATE(obj);
+
+  if (priv->tag != NULL) {
+
+    g_object_unref (priv->tag);
+    priv->tag = NULL;
+  }
+
+  parent_class->dispose (obj);
+}
+
+static void
+gm_text_extlink_finalize (GObject* obj)
+{
+  GmTextExtlinkPrivate* priv = GM_TEXT_EXTLINK_GET_PRIVATE(obj);
+
+  if (priv->regex != NULL) {
+
+    regfree (priv->regex);
+    priv->regex = NULL;
+  }
+
+  parent_class->finalize (obj);
+}
+
+static void
+gm_text_extlink_class_init (GmTextExtlinkClass* g_class)
+{
+  GObjectClass* gobject_class = NULL;
+
+  parent_class = g_type_class_peek_parent (g_class);
+
+  gobject_class = (GObjectClass*)g_class;
+  gobject_class->dispose = gm_text_extlink_dispose;
+  gobject_class->finalize = gm_text_extlink_finalize;
+
+  g_type_class_add_private (gobject_class, sizeof (GmTextExtlinkPrivate));
+}
+
+GType
+gm_text_extlink_get_type ()
+{
+  static GType result = 0;
+  if (!result) {
+
+    static const GTypeInfo my_info = {
+      sizeof(GmTextExtlinkClass),
+      NULL,
+      NULL,
+      (GClassInitFunc) gm_text_extlink_class_init,
+      NULL,
+      NULL,
+      sizeof(GmTextExtlink),
+      0,
+      NULL,
+      NULL
+    };
+
+    static const GInterfaceInfo enhancer_helper_info = {
+      enhancer_helper_iface_init,
+      NULL,
+      NULL
+    };
+
+    result = g_type_register_static (G_TYPE_OBJECT,
+				     "GmTextExtlink",
+				     &my_info, 0);
+    g_type_add_interface_static (result,
+				 GM_TYPE_TEXT_BUFFER_ENHANCER_HELPER_IFACE,
+				 &enhancer_helper_info);
+  }
+  return result;
+}
+
+/* public api */
+
+GmTextBufferEnhancerHelperIFace*
+gm_text_extlink_new (const gchar* regex,
+		     GtkTextTag* tag)
+{
+  GmTextBufferEnhancerHelperIFace* result = NULL;
+  GmTextExtlinkPrivate* priv = NULL;
+
+  g_return_val_if_fail (regex != NULL, NULL);
+
+  result = (GmTextBufferEnhancerHelperIFace*)g_object_new(GM_TYPE_TEXT_EXTLINK, NULL);
+  priv = GM_TEXT_EXTLINK_GET_PRIVATE (result);
+
+  g_object_ref (tag);
+  priv->tag = tag;
+
+  priv->regex = (regex_t*)g_malloc0 (sizeof(regex_t));
+  if (regcomp (priv->regex, regex, REG_EXTENDED) != 0) {
+
+    regfree (priv->regex);
+    priv->regex = NULL;
+    g_object_unref (result);
+    result = NULL;
+  }
+
+  return result;
+}

Added: trunk/lib/gui/gm-text-extlink.h
==============================================================================
--- (empty file)
+++ trunk/lib/gui/gm-text-extlink.h	Sun Aug 24 22:35:46 2008
@@ -0,0 +1,74 @@
+
+/* Ekiga -- A VoIP and Video-Conferencing application
+ * Copyright (C) 2000-2008 Damien Sandras
+ *
+ * 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 of the License, 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 St, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *
+ * Ekiga is licensed under the GPL license and as a special exception,
+ * you have permission to link or otherwise combine this program with the
+ * programs OPAL, OpenH323 and PWLIB, and distribute the combination,
+ * without applying the requirements of the GNU GPL to the OPAL, OpenH323
+ * and PWLIB programs, as long as you do follow the requirements of the
+ * GNU GPL for all the rest of the software thus combined.
+ */
+
+
+/*
+ *                        gm-text-extlink.h  -  description
+ *                         --------------------------------
+ *   begin                : written in august 2008 by Julien Puydt
+ *   copyright            : (C) 2008 by Julien Puydt
+ *   description          : Declaration of a text decorator for external links
+ *
+ */
+
+#ifndef __GM_TEXT_EXTLINK_H__
+#define __GM_TEXT_EXTLINK_H__
+
+#include "gm-text-buffer-enhancer-helper-iface.h"
+
+G_BEGIN_DECLS
+
+/* public api */
+
+GmTextBufferEnhancerHelperIFace* gm_text_extlink_new (const gchar* regex,
+						      GtkTextTag* tag);
+
+/* GObject boilerplate */
+
+typedef struct _GmTextExtlink      GmTextExtlink;
+typedef struct _GmTextExtlinkClass GmTextExtlinkClass;
+
+struct _GmTextExtlink {
+  GObject parent;
+};
+
+struct _GmTextExtlinkClass {
+  GObjectClass parent_class;
+};
+
+#define GM_TYPE_TEXT_EXTLINK (gm_text_extlink_get_type())
+#define GM_TEXT_EXTLINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GM_TYPE_TEXT_EXTLINK,GmTextExtlink))
+#define GM_TEXT_EXTLINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GM_TYPE_TEXT_EXTLINK,GObject))
+#define GM_IS_TEXT_EXTLINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GM_TYPE_TEXT_EXTLINK))
+#define GM_IS_TEXT_EXTLINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GM_TYPE_TEXT_EXTLINK))
+#define GM_TEXT_EXTLINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GM_TYPE_TEXT_EXTLINK,GmTextExtlinkClass))
+
+GType gm_text_extlink_get_type () G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* __GM_TEXT_EXTLINK_H__ */