makes a new window out of a graphics path that has been traced on this forms space : Form Frame Window « GUI Windows Form « C# / C Sharp

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C# / C Sharp » GUI Windows Form » Form Frame WindowScreenshots 
makes a new window out of a graphics path that has been traced on this forms space
makes a new window out of a graphics path that has been traced on this forms space

/*
GDI+ Programming in C# and VB .NET
by Nick Symmonds

Publisher: Apress
ISBN: 159059035X
*/
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace CustomWindow
{
    /// <summary>
    /// This project makes a new window out of a graphics path that has been traced on this forms space.
    /// Features include: Smoothing capability via turning sub paths into curves, etc
    /// Use point for stretching curve.
    /// 
    /// Have some kind of window that allows the user to set or view smoothing factor.
    /// The user can then see the shape in the smoother form side-by-side with the original.
    /// The user can then choose which one to make the new window with.
    /// Show the smoothing factor as percentage reduction in number of points = 1-(p1/p2)
    /// Have user choose some basic aspects of the form.
    ///   min and max buttons
    ///   border style
    ///   inflation size
    ///     have another form that has a slider so the user can graphically size the shape
    ///   opacity
    ///   background color
    ///   background image
    ///   Quit button on form
    /// </summary>
    public class CustomWindow : System.Windows.Forms.Form
    {
    #region Class Local Storage
    private GraphicsPath m_WindowPath;
    private GraphicsPath m_path;
    private Point m_StartPoint;
    private Point m_LastPoint;
    private bool  m_Drawing;
    private Rectangle InvalidRect;
    private Cursor DrawCursor;
    #endregion

    private System.Windows.Forms.MainMenu mainMenu1;
    private System.Windows.Forms.MenuItem menuItem1;
    private System.Windows.Forms.MenuItem mnuExit;
    private System.Windows.Forms.MenuItem menuItem3;
    private System.Windows.Forms.MenuItem menuItem4;
    private System.Windows.Forms.MenuItem menuItem5;
    private System.Windows.Forms.MenuItem menuItem2;
    private System.Windows.Forms.MenuItem menuItem6;
    private System.Windows.Forms.MenuItem menuItem7;
    private System.Windows.Forms.MenuItem menuItem8;
    private System.Windows.Forms.MenuItem menuItem9;
    private System.Windows.Forms.TreeView PathTree;
    private System.Windows.Forms.Panel P1;
    private System.Windows.Forms.Splitter TreeSplitter;
    private System.Windows.Forms.MenuItem menuItem10;
    private System.Windows.Forms.Splitter PanelSplitter;
    private System.Windows.Forms.RichTextBox DebugWindow;




        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public CustomWindow()
        {
            InitializeComponent();

      this.Icon = new Icon("Icon.ico");
      DrawCursor = new Cursor("Pen.cur");

      this.Size = new Size(800600);
      this.SetStyle(ControlStyles.AllPaintingInWmPaint,true);
      this.SetStyle(ControlStyles.DoubleBuffer,true);

//      this.MouseDown  += new MouseEventHandler(this.M_Down);
//      this.MouseUp    += new MouseEventHandler(this.M_Up);
//      this.MouseMove  += new MouseEventHandler(this.M_Move);

      P1.Paint      += new PaintEventHandler(this.PanelPaint);
      P1.MouseDown  += new MouseEventHandler(this.M_Down);
      P1.MouseUp    += new MouseEventHandler(this.M_Up);
      P1.MouseMove  += new MouseEventHandler(this.M_Move);

      m_WindowPath = new GraphicsPath();
      m_path = new GraphicsPath();
      InvalidRect = Rectangle.Empty;

      //Set RichTextBox properties
      DebugWindow.Height = this.Height /8;
      DebugWindow.Dock = DockStyle.Bottom;

      // Set properties of TreeView control.
      PathTree.Dock = DockStyle.Left;
      PathTree.Width = this.ClientSize.Width / 6;
      PathTree.TabIndex = 0;
      PathTree.Nodes.Add("Shapes");

      //Set Panel Properties
      P1.Dock = DockStyle.Fill;
      P1.BackColor = Color.Bisque;


      //Set up the splitters
      TreeSplitter.Location = new Point(PathTree.Width, 0);
      TreeSplitter.Size = new Size(2this.Height);
      TreeSplitter.BackColor = Color.Black;

      PanelSplitter.Dock = DockStyle.Bottom;
      PanelSplitter.Height = 2;
      PanelSplitter.BackColor = Color.Black;

        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Disposebool disposing )
        {
            ifdisposing )
            {
                if (components != null
                {
                    components.Dispose();
                }
            }
            base.Disposedisposing );
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
      this.mainMenu1 = new System.Windows.Forms.MainMenu();
      this.menuItem1 = new System.Windows.Forms.MenuItem();
      this.mnuExit = new System.Windows.Forms.MenuItem();
      this.menuItem3 = new System.Windows.Forms.MenuItem();
      this.menuItem4 = new System.Windows.Forms.MenuItem();
      this.menuItem5 = new System.Windows.Forms.MenuItem();
      this.menuItem2 = new System.Windows.Forms.MenuItem();
      this.menuItem6 = new System.Windows.Forms.MenuItem();
      this.menuItem7 = new System.Windows.Forms.MenuItem();
      this.menuItem8 = new System.Windows.Forms.MenuItem();
      this.menuItem9 = new System.Windows.Forms.MenuItem();
      this.PathTree = new System.Windows.Forms.TreeView();
      this.P1 = new System.Windows.Forms.Panel();
      this.TreeSplitter = new System.Windows.Forms.Splitter();
      this.menuItem10 = new System.Windows.Forms.MenuItem();
      this.DebugWindow = new System.Windows.Forms.RichTextBox();
      this.PanelSplitter = new System.Windows.Forms.Splitter();
      this.SuspendLayout();
      // 
      // mainMenu1
      // 
      this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                              this.menuItem1,
                                                                              this.menuItem3,
                                                                              this.menuItem7});
      // 
      // menuItem1
      // 
      this.menuItem1.Index = 0;
      this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                              this.mnuExit});
      this.menuItem1.Text = "File";
      // 
      // mnuExit
      // 
      this.mnuExit.Index = 0;
      this.mnuExit.Text = "&Exit";
      this.mnuExit.Click += new System.EventHandler(this.mnuExit_Click);
      // 
      // menuItem3
      // 
      this.menuItem3.Index = 1;
      this.menuItem3.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                              this.menuItem4,
                                                                              this.menuItem10,
                                                                              this.menuItem5,
                                                                              this.menuItem2,
                                                                              this.menuItem6,
                                                                              this.menuItem9});
      this.menuItem3.Text = "Shape";
      // 
      // menuItem4
      // 
      this.menuItem4.Index = 0;
      this.menuItem4.Text = "Create";
      // 
      // menuItem5
      // 
      this.menuItem5.Index = 2;
      this.menuItem5.Text = "Resize";
      // 
      // menuItem2
      // 
      this.menuItem2.Index = 3;
      this.menuItem2.Text = "-";
      // 
      // menuItem6
      // 
      this.menuItem6.Index = 4;
      this.menuItem6.Text = "Load Shape";
      // 
      // menuItem7
      // 
      this.menuItem7.Index = 2;
      this.menuItem7.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                              this.menuItem8});
      this.menuItem7.Text = "Form";
      // 
      // menuItem8
      // 
      this.menuItem8.Index = 0;
      this.menuItem8.Text = "Spawn";
      // 
      // menuItem9
      // 
      this.menuItem9.Index = 5;
      this.menuItem9.Text = "Save Shape";
      // 
      // PathTree
      // 
      this.PathTree.ImageIndex = -1;
      this.PathTree.Name = "PathTree";
      this.PathTree.SelectedImageIndex = -1;
      this.PathTree.Size = new System.Drawing.Size(88488);
      this.PathTree.TabIndex = 0;
      // 
      // P1
      // 
      this.P1.Location = new System.Drawing.Point(11216);
      this.P1.Name = "P1";
      this.P1.Size = new System.Drawing.Size(464472);
      this.P1.TabIndex = 1;
      // 
      // TreeSplitter
      // 
      this.TreeSplitter.Name = "TreeSplitter";
      this.TreeSplitter.Size = new System.Drawing.Size(8573);
      this.TreeSplitter.TabIndex = 2;
      this.TreeSplitter.TabStop = false;
      // 
      // menuItem10
      // 
      this.menuItem10.Index = 1;
      this.menuItem10.Text = "Smooth";
      // 
      // DebugWindow
      // 
      this.DebugWindow.Location = new System.Drawing.Point(24520);
      this.DebugWindow.Name = "DebugWindow";
      this.DebugWindow.Size = new System.Drawing.Size(53640);
      this.DebugWindow.TabIndex = 3;
      this.DebugWindow.Text = "richTextBox1";
      // 
      // PanelSplitter
      // 
      this.PanelSplitter.Location = new System.Drawing.Point(80);
      this.PanelSplitter.Name = "PanelSplitter";
      this.PanelSplitter.Size = new System.Drawing.Size(8573);
      this.PanelSplitter.TabIndex = 4;
      this.PanelSplitter.TabStop = false;
      // 
      // CustomWindow
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(513);
      this.ClientSize = new System.Drawing.Size(592573);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                  this.PanelSplitter,
                                                                  this.DebugWindow,
                                                                  this.TreeSplitter,
                                                                  this.P1,
                                                                  this.PathTree});
      this.Menu = this.mainMenu1;
      this.Name = "CustomWindow";
      this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
      this.Text = "CustomWindow";
      this.Load += new System.EventHandler(this.CustomWindow_Load);
      this.ResumeLayout(false);

    }
        #endregion

    #region Main Entry Point
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new CustomWindow());
        }
    #endregion

    private void CustomWindow_Load(object sender, System.EventArgs e)
    {
    }

//    protected override void OnPaint(PaintEventArgs e)
//    {
//      Graphics G = e.Graphics;
//      PaintMe(e.Graphics);
//    }

    private void PanelPaint(object sender, PaintEventArgs e)
    {
      PaintMe(e.Graphics);
    }

    private void PaintMe(Graphics G)
    {
      G.SmoothingMode = SmoothingMode.AntiAlias;

      if (m_WindowPath.PointCount > 0)
        G.DrawPath(Pens.Black, m_WindowPath);

      if (m_path.PointCount > 0)
        G.DrawPath(Pens.Red, m_path);
    }

    private void M_Down(object sender, MouseEventArgs m)
    {
      m_StartPoint  = new Point(m.X, m.Y);
      m_LastPoint   = m_StartPoint;
      m_WindowPath  = new GraphicsPath();
      m_Drawing     = true;
      P1.Invalidate();
    }

    private void M_Up(object sender, MouseEventArgs m)
    {
      m_WindowPath.CloseFigure();
      m_Drawing     = false;

      //Smooth out the path by reducing lines that make up path
      m_path = SmootherPath(m_WindowPath);
      Matrix Q = new Matrix();
      Q.Translate(505);
      m_path.Transform(Q);

      int a = m_WindowPath.PointCount;
      int b = m_path.PointCount;

      //Draw the paths and make a window.
      P1.Invalidate();
      MakeWindow();
    }

    private void M_Move(object sender, MouseEventArgs m)
    {
      if(m_Drawing)
      {
        m_WindowPath.AddLine(m_LastPoint.X, m_LastPoint.Y, m.X, m.Y);
        m_LastPoint.X = m.X;
        m_LastPoint.Y = m.Y;

        InvalidRect = Rectangle.Truncate(m_WindowPath.GetBounds());
        InvalidRect.Inflatenew Size(22) );
        P1.Invalidate(InvalidRect);
      }
    }

    /// <doc>
    /// Start first with reducing the number of lines in this graphics path
    /// 1. read first point
    /// 2. if x value of next point = x value of last point then skip
    /// 3. if x value of next point != value of last point then...
    /// 3a. make line based on these two points
    /// 3b. add line to new path
    /// 3c. first point = next point 
    /// 4. repeat 1-3c
    /// 5. Repeat 1-4 for both X and Y
    /// </doc>
    private GraphicsPath SmootherPath(GraphicsPath gp)
    {
      PathData pd = gp.PathData;
      PointF pt1 = new Point(-1,-1);

      //First do all values in the X range
      GraphicsPath FixedPath_X = new GraphicsPath();
      foreach (PointF p in pd.Points)
      {
        if (pt1.X == -1)
        {
          pt1 = p;
          continue;
        }
        // If I introduced an error factor here I could smooth it out even more
        if (p.X != pt1.X)
        {
          FixedPath_X.AddLine(pt1, p);
          pt1 = p;
        }
      }
      FixedPath_X.CloseFigure();

      //Second do all values in the Y range
      pd = FixedPath_X.PathData;
      pt1 = new Point(-1,-1);
      GraphicsPath FixedPath_Y = new GraphicsPath();
      foreach (PointF p in pd.Points)
      {
        if (pt1.Y == -1)
        {
          pt1 = p;
          continue;
        }
        // If I introduced an error factor here I could smooth it out even more
        if (p.Y != pt1.Y)
        {
          FixedPath_Y.AddLine(pt1, p);
          pt1 = p;
        }
      }
      FixedPath_Y.CloseFigure();

      return FixedPath_Y;
    }

    private void MakeWindow()
    {
      Form frm = new Form();
      GraphicsPath path = (GraphicsPath)m_WindowPath.Clone();
      Matrix Xlate = new Matrix();

      //Find the lowest Y value and normalize all Y values to zero
      //Find the lowest X value and normalize all X values to zero
      PointF[] p = path.PathPoints;
      int Xoffset = 9999;
      int Yoffset = 9999;
      foreach (PointF p2 in p)
      {
        if (p2.X < Xoffset)
          Xoffset = (int)p2.X;
        if (p2.Y < Yoffset)
          Yoffset = (int)p2.Y;
      }
      Xlate.Translate(-Xoffset, -Yoffset);
      path.Transform(Xlate);
     

      // Set the paractical viewing region of the form
      frm.Region = new Region(path);
      //Set the size of the form
      Rectangle frmRect = Rectangle.Truncate(path.GetBounds());
      frm.Size = frmRect.Size;
      //Set some other parameters
      frm.StartPosition = FormStartPosition.CenterParent;
      frm.FormBorderStyle = FormBorderStyle.FixedSingle;
      frm.ShowDialog();

      frm.Dispose();
      Xlate.Dispose();

    }

    private void mnuExit_Click(object sender, System.EventArgs e)
    {
      this.Close();
    }

  }
}



           
       
CustomWindow.zip( 34 k)
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