From 6d4f9ceeb56d9b41efbce7349220b7742e085c20 Mon Sep 17 00:00:00 2001
From: Sreerenj Balachandran <bsreerenj@gmailcom>
Date: Tue, 2 Mar 2010 13:18:19 +0530
Subject: [PATCH] Added the property for setting the "thickness" of font 
 modified:   ext/opencv/textwrite/gsttextwrite.c 	modified:  
 ext/opencv/textwrite/gsttextwrite.h

---
 ext/opencv/textwrite/gsttextwrite.c | 31 +++++++++++++++++++++----------
 ext/opencv/textwrite/gsttextwrite.h |  1 +
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/ext/opencv/textwrite/gsttextwrite.c b/ext/opencv/textwrite/gsttextwrite.c
index 807aed2..c5de38a 100644
--- a/ext/opencv/textwrite/gsttextwrite.c
+++ b/ext/opencv/textwrite/gsttextwrite.c
@@ -71,6 +71,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_textwrite_debug);
 #define DEFAULT_PROP_HEIGHT 	1
 #define DEFAULT_PROP_XPOS	50
 #define DEFAULT_PROP_YPOS	50
+#define DEFAULT_PROP_THICKNESS	2
 
 /* Filter signals and args */
 enum
@@ -85,6 +86,7 @@ enum
   PROP_0,
   PROP_XPOS,
   PROP_YPOS,
+  PROP_THICKNESS,
   PROP_TEXT,
   PROP_HEIGHT,
   PROP_WIDTH
@@ -184,6 +186,11 @@ gst_textwrite_class_init (GsttextwriteClass * klass)
           "Sets the Vertical position", 0, G_MAXINT,
           DEFAULT_PROP_YPOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
+g_object_class_install_property (gobject_class, PROP_THICKNESS,
+      g_param_spec_int ("thickness", "font thickness",
+          "Sets the Thickness of Font", 0, G_MAXINT,
+          DEFAULT_PROP_THICKNESS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
   g_object_class_install_property (gobject_class, PROP_HEIGHT,
       g_param_spec_double ("height", "Height",
           "Sets the height of fonts",1.0,5.0,
@@ -220,11 +227,12 @@ gst_textwrite_init (Gsttextwrite * filter,
   gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
   gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
   filter->textbuf = g_strdup (DEFAULT_PROP_TEXT); 
-  filter->width=DEFAULT_PROP_WIDTH;
-  filter->height=DEFAULT_PROP_HEIGHT;
-  filter->xpos=DEFAULT_PROP_XPOS;
-  filter->ypos=DEFAULT_PROP_XPOS;
-  
+  filter->width = DEFAULT_PROP_WIDTH;
+  filter->height = DEFAULT_PROP_HEIGHT;
+  filter->xpos = DEFAULT_PROP_XPOS;
+  filter->ypos = DEFAULT_PROP_YPOS;
+  filter->thickness = DEFAULT_PROP_THICKNESS;
+
 }
 
 static void
@@ -244,6 +252,9 @@ gst_textwrite_set_property (GObject * object, guint prop_id,
     case PROP_YPOS:
       filter->ypos = g_value_get_int(value);
       break;
+    case PROP_THICKNESS:
+      filter->thickness = g_value_get_int(value);
+      break;
     case PROP_HEIGHT:
       filter->height = g_value_get_double(value);
       break;
@@ -272,6 +283,9 @@ gst_textwrite_get_property (GObject * object, guint prop_id,
     case PROP_YPOS:
       g_value_set_int (value, filter->ypos);
       break;
+    case PROP_THICKNESS:
+      g_value_set_int (value, filter->thickness);
+      break;
     case PROP_HEIGHT:
       g_value_set_double (value, filter->height);
       break;
@@ -322,15 +336,12 @@ gst_textwrite_chain (GstPad * pad, GstBuffer * buf)
   filter = GST_textwrite (GST_OBJECT_PARENT (pad));
 
   filter->cvImage->imageData = (char *) GST_BUFFER_DATA (buf);
-  int    lineWidth=1;
-  cvInitFont(&(filter->font),CV_FONT_VECTOR0, filter->width,filter->height,0,lineWidth,0);
-
+ 
+  cvInitFont(&(filter->font),CV_FONT_VECTOR0, filter->width,filter->height,0,filter->thickness,0);
   
   cvPutText (filter->cvImage,filter->textbuf,cvPoint(filter->xpos,filter->ypos), &(filter->font), cvScalar(165,14,14,0));
 
-
   gst_buffer_set_data (buf, filter->cvImage->imageData,filter->cvImage->imageSize);
-
  
   return gst_pad_push (filter->srcpad, buf);
 }
diff --git a/ext/opencv/textwrite/gsttextwrite.h b/ext/opencv/textwrite/gsttextwrite.h
index 350e267..f36de2a 100644
--- a/ext/opencv/textwrite/gsttextwrite.h
+++ b/ext/opencv/textwrite/gsttextwrite.h
@@ -80,6 +80,7 @@ struct _Gsttextwrite
 
   gint xpos;
   gint ypos;
+  gint thickness;
   gdouble height;
   gdouble width;
   gchar *textbuf;
-- 
2.7.4