using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Windows.Media.Imaging;
using System.Windows.Media;
using System.Windows.Input;
using System.Diagnostics;
using System.Windows.Shapes;

namespace TestApp
{
    public partial class TestPage : PhoneApplicationPage
    {
       

        int trX = 0;
        int trY = 0;
       
        TextBlock croppingRectangle;

        


        public TestPage()
        {
            InitializeComponent();

            init();
        }
        public void init()
        {


            TextBlock rect = new TextBlock();
            rect.Text = "Hello......Hello......";
            
            rect.Height = 94;  //fixed 
            rect.MaxHeight = image1.Height;
            rect.MaxWidth = image1.Width;
            rect.Width = 300; //fixed
            rect.TextWrapping = TextWrapping.Wrap;
            rect.Foreground = new SolidColorBrush(Colors.Black);
             rect.F
            rect.F
            rect.Margin = image1.Margin;
            rect.ManipulationDelta += new EventHandler<ManipulationDeltaEventArgs>(rect_ManipulationDelta);

            LayoutRoot.Children.Add(rect);
            LayoutRoot.Height = image1.Height;
            LayoutRoot.Width = image1.Width;
        }
        private void rect_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
        {
            GeneralTransform gt = ((TextBlock)sender).TransformToVisual(LayoutRoot);
            Point p = gt.Transform(new Point(0, 0));
            int intermediateValueY = (int)((LayoutRoot.Height - ((TextBlock)sender).Height));
            int intermediateValueX = (int)((LayoutRoot.Width - ((TextBlock)sender).Width));
            croppingRectangle = (TextBlock)sender;
            TranslateTransform tr = new TranslateTransform();
            trX += (int)e.DeltaManipulation.Translation.X;
            trY += (int)e.DeltaManipulation.Translation.Y;
            if (trY < (-intermediateValueY / 2))
            {
                trY = (-intermediateValueY / 2);
            }
            else if (trY > (intermediateValueY / 2))
            {
                trY = (intermediateValueY / 2);
            }

            if (trX < (-intermediateValueX / 2))
            {
                trX = (-intermediateValueX / 2);
            }
            else if (trX > (intermediateValueX / 2))
            {
                trX = (intermediateValueX / 2);
            }

            tr.X = trX;
            tr.Y = trY;

            croppingRectangle.RenderTransform = tr;
        }


    }
}