/*------------------------------------------------------------------------------*
 * File Name: AddEditTextLabelInGraph.c											*
 * Creation: ER, 03/17/05														*
 * Purpose: Programming Example													*
 * Copyright (c) OriginLab Corp.2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010	*
 * All Rights Reserved															*
 * 																				*
 * Modification Log:															*
 *------------------------------------------------------------------------------*/
 
#include <Origin.h>

/////////////////////////////////////////////////////////////////////////////////
// This example shows how to add and change properties of a text label in a graph.
// NOTE: It is assumed that a graph layer is active.
//
void add_edit_text_label_in_graph()
{
	// Declare graph layer using active layer
	GraphLayer gly = Project.ActiveLayer();
	if( !gly )
	{
		out_str("Active layer is not a graph!");
		return;
	}
	// Note: Labels can exist in pages such as worksheet as well
	// This example just works with graph layer

	// Declare graph object in OC using name of the label
	GraphObject grobj;
	
	// Create a new label object
	string strLabelName = "MyTextLabel";
	grobj = gly.CreateGraphObject(GROT_TEXT, strLabelName);		
	
	// Can now assign text value to label such as:
	grobj.Text = "This is my text";
	
	// Can use formatting in text string such as to make multiline label:
	string strLabelText;
	double dVal1 = 10.3, dVal2 = 0.035;
	strLabelText.Format("Value 1 = \t%e\nValue 2 = \t%e", dVal1, dVal2);
	grobj.Text = strLabelText;
	
	// Can change other properties of label as well.
	// To see properties, can get into tree and dump to script window
	Tree tr;
	tr = grobj.Label;
	out_str("Label Properties:");
	out_tree(tr);
	
	// Once you know what properties are available, can set them:
	grobj.Label.Font.Size.nVal = 30;
	grobj.Label.Color.nVal = 1;
	grobj.Label.Angle.nVal = 45;
	grobj.Label.Dimension.Left.dVal = 0;
	grobj.Label.Dimension.Top.dVal = 5;
	
	gly.GetPage().Refresh();
}
/////////////////////////////////////////////////////////////////////////////////