Csharp/C Sharp by API/System.Windows.Forms

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FontDialog.Apply

 

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        public ColorFontDialog()
        {
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&Font";
            this.button2.Text = "&Color";
            this.label1.Text = "Change my FONT and COLOR!";
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);
        }
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }
        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }
        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }


FontDialog.Color

 


using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        public ColorFontDialog()
        {
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&Font";
            this.button2.Text = "&Color";
            this.label1.Text = "Change my FONT and COLOR!";
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);
        }
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }
        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }
        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }


FontDialog.ShowApply

 

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        public ColorFontDialog()
        {
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&Font";
            this.button2.Text = "&Color";
            this.label1.Text = "Change my FONT and COLOR!";
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);
        }
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }
        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }
        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }


FontDialog.ShowColor

 

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        public ColorFontDialog()
        {
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&Font";
            this.button2.Text = "&Color";
            this.label1.Text = "Change my FONT and COLOR!";
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);
        }
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }
        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }
        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }


FontDialog.ShowDialog

   
using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
public class MenuDialog : Form {
  TextBox text = new TextBox();
  public MenuDialog() {
    Size = new Size(500,200);
    text.Size = new Size(490,190);
    text.Multiline = true;
    text.ScrollBars = ScrollBars.Both;
    text.WordWrap = false;
    text.Location = new Point(5,5);
    MenuItem fileMenu = new MenuItem("File");
    MenuItem open = new MenuItem("Open");
    open.Shortcut = Shortcut.CtrlO;
    MenuItem save = new MenuItem("Save");
    save.Shortcut = Shortcut.CtrlS;
    fileMenu.MenuItems.Add(open);
    fileMenu.MenuItems.Add(save);
    MenuItem formatMenu = new MenuItem("Format");
    MenuItem font = new MenuItem("Font");
    font.Shortcut = Shortcut.CtrlF;
    formatMenu.MenuItems.Add(font);
     
    MainMenu bar = new MainMenu();
    Menu = bar;
    bar.MenuItems.Add(fileMenu);
    bar.MenuItems.Add(formatMenu);
    Controls.Add(text);
    open.Click += new EventHandler(Open_Click);
    save.Click += new EventHandler(Save_Click);
    font.Click += new EventHandler(Font_Click); 
  }
  
  protected void Open_Click(Object sender, EventArgs e) {
    OpenFileDialog o = new OpenFileDialog();
    if(o.ShowDialog() == DialogResult.OK) {
      Stream file = o.OpenFile();
      StreamReader reader = new StreamReader(file);
      char[] data = new char[file.Length];
      reader.ReadBlock(data,0,(int)file.Length);
      text.Text = new String(data);  
      reader.Close();
    }
  }
  protected void Save_Click(Object sender, EventArgs e) {
    SaveFileDialog s = new SaveFileDialog();
    if(s.ShowDialog() == DialogResult.OK) {
      StreamWriter writer = new StreamWriter(s.OpenFile());
      writer.Write(text.Text);
      writer.Close();
    }
  }
  protected void Font_Click(Object sender, EventArgs e) {
    FontDialog f = new FontDialog();
    if(f.ShowDialog() == DialogResult.OK) 
      text.Font = f.Font;
  }
  public static void Main() {
    Application.Run(new MenuDialog());
  }
}


FontDialog.ShowHelp

  
  using System;
  using System.Drawing;
  using System.Collections;
  using System.ruponentModel;
  using System.Windows.Forms;
  using System.Data;
  public class Form1 : System.Windows.Forms.Form
  {
    private System.ruponentModel.Container components;
    private System.Windows.Forms.FontDialog fontDlg;
    private Font currFont;
    public Form1()
    {
      InitializeComponent();
      CenterToScreen();
      fontDlg = new System.Windows.Forms.FontDialog();    
      fontDlg.ShowHelp = true;    
      Text = "Click on me to change the font";
      currFont = new Font("Times New Roman", 12);
    }
    private void InitializeComponent()
    {
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Text = "Form1";
      this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseUp);
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
    }
    static void Main() 
    {
      Application.Run(new Form1());
    }
    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
    {
      Graphics g = e.Graphics;
      g.DrawString("www.nfex.ru...", currFont, 
        new SolidBrush(Color.Black), 0, 0);  
    }
    private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
    {
      if (fontDlg.ShowDialog() != DialogResult.Cancel)
      {
        currFont = fontDlg.Font;
        Invalidate();
      }
    }
  }


new FontDialog()

   
using System;
using System.Drawing;
using System.Windows.Forms;
   
class FontMenuForm: Form
{
     protected string strText = "Sample Text";
     protected Font font = new Font("Times New Roman", 24, FontStyle.Italic);
   
     public static void Main()
     {
          Application.Run(new FontMenuForm());
     }
     public FontMenuForm()
     {
          ResizeRedraw = true;
          Menu = new MainMenu();
          Menu.MenuItems.Add("&Font!", new EventHandler(MenuFontOnClick));
     }
     void MenuFontOnClick(object obj, EventArgs ea)
     {
          FontDialog dlg = new FontDialog();
          dlg.Font = font;
   
          if (dlg.ShowDialog() == DialogResult.OK)
          {
               font = dlg.Font;
               Invalidate();
          }
     }
     protected override void OnPaint(PaintEventArgs pea)
     {
          DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);
     }       
     protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
     {
          SizeF sizef = grfx.MeasureString(strText, font);
          Brush brush = new SolidBrush(clr);
   
          grfx.DrawString(strText, font, brush, (cx - sizef.Width) / 2,
                                                (cy - sizef.Height) / 2);
     }
     public float GetAscent(Graphics grfx, Font font)
     {
          return font.GetHeight(grfx) * 
                    font.FontFamily.GetCellAscent(font.Style) /
                         font.FontFamily.GetLineSpacing(font.Style);
     }
     public float GetDescent(Graphics grfx, Font font)
     {
          return font.GetHeight(grfx) * 
                    font.FontFamily.GetCellDescent(font.Style) /
                         font.FontFamily.GetLineSpacing(font.Style);
     }
     public float PointsToPageUnits(Graphics grfx, Font font)
     {
          float fFontSize;
   
          if (grfx.PageUnit == GraphicsUnit.Display)
               fFontSize = 100 * font.SizeInPoints / 72;
          else
               fFontSize = grfx.DpiX * font.SizeInPoints / 72;
   
          return fFontSize;
     }
}
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