FontCombobox 和FontSizeCombobox

 

附件：http://files.cnblogs.com/xe2011/WindowsFormsFontCombox.rar

1. 自定义组件字体组合框
2. 自定义组件字体组合框如何使用
3. 自定义组件字体大小组合框
4. 自定义组件字体大小组合框如何使用
5. 如何设置richTextBox1选中的字体名称
6. 如何获得richTextBox1选中的字体名称
7. 如何设置richTextBox1选中的字体大小
8. 如何获得richTextBox1选中的字体大小
9. 如何在toolStrip中添加这2个控件

自定义组件的做法

1 新个新的工程，先做一个想要达到效果的样子来。

2 然后转到 InitializeComponent(); 把相关代码复制过来

3 选中工程添加一个类然后继承一个组件的类 如 class FontComboBox : ComboBox{}

4 小修改一下 基本完成了

 

自定义组件字体组合框类

using System;

using System.Collections.Generic;

using System.Text;

using System.Drawing;



namespace System.Windows.Forms

{

    class FontComboBox : ComboBox

    {

        public FontComboBox()

        {

            this.comboBox1 = this;

            this.comboBox1.FormattingEnabled = true;

            this.comboBox1.Location = new System.Drawing.Point(12, 12);

            this.comboBox1.Name = "comboBox1";

            this.comboBox1.Size = new System.Drawing.Size(121, 20);

            this.comboBox1.TabIndex = 1;



            //OwnerDrawVariable

            this.comboBox1.DrawMode = DrawMode.OwnerDrawVariable;

            this.comboBox1.MaxDropDownItems = 20;

            this.comboBox1.DropDownWidth = 200;









            this.comboBox1.Text = "Times New Roman";

            this.comboBox1.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.comboBox1_DrawItem);

            this.comboBox1.MeasureItem += new System.Windows.Forms.MeasureItemEventHandler(this.comboBox1_MeasureItem);

        }



        //这么写原因

        //1 comboBox1.Items初始化在Form1.Designer.cs产生了大量的代码 多出165行代码 我的系统上有165种字体

        //        

        //private void Form1_Load(object sender, EventArgs e)

        //{

        //    fontComboBox1.Initialize();

        //}

        public void Initialize()

        {

            this.comboBox1.Items.Clear();

            foreach (FontFamily f in FontFamily.Families)

            {

                comboBox1.Items.Add(f.Name);

            }

        }





        private System.Windows.Forms.ComboBox comboBox1;



        private void comboBox1_DrawItem(object sender, DrawItemEventArgs e)

        {

            e.DrawBackground();

            //e.DrawFocusRectangle();

            string s = comboBox1.Items[e.Index].ToString();



            string fontName = comboBox1.Items[e.Index].ToString();

            Font font = new Font(fontName, 12);



            e.Graphics.DrawString(s, font, Brushes.Black, e.Bounds);

        }



        private void comboBox1_MeasureItem(object sender, MeasureItemEventArgs e)

        {

            e.ItemHeight = 20;

        }

    }

}

FontComboBox.cs

初始化下就可以使用了

   private void Form1_Load(object sender, EventArgs e)

        {

            fontComboBox1.Initialize();

        }

 

自定义组件字体大小组合框类

using System;

using System.Collections.Generic;

using System.Text;

using System.Drawing;



namespace System.Windows.Forms

{

    class FontSizeComboBox : ComboBox

    {

        public FontSizeComboBox()

        {

            this.comboBox1 = this;

            // 

            // comboBox1

            // 

            this.comboBox1.FormattingEnabled = true;

            this.comboBox1.Location = new System.Drawing.Point(12, 12);

            this.comboBox1.Name = "comboBox1";

            this.comboBox1.Size = new System.Drawing.Size(121, 20);

            this.comboBox1.TabIndex = 1;

            //this.comboBox1.Sorted = true;



            //OwnerDrawVariable

            this.comboBox1.DrawMode = DrawMode.OwnerDrawVariable;

            this.comboBox1.MaxDropDownItems = 15;

            this.comboBox1.DropDownWidth = 200;

            this.comboBox1.Text = "9";                   

            this.comboBox1.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.comboBox1_DrawItem);

            this.comboBox1.MeasureItem += new System.Windows.Forms.MeasureItemEventHandler(this.comboBox1_MeasureItem);

        }



        //这么写原因有2

        //1 comboBox1.Items的赋值了2次

        //2 comboBox1.Items初始化在Form1.Designer.cs产生了大量的代码

        //private void Form1_Load(object sender, EventArgs e)

        //{

        //    fontSizeComboBox1.Initialize();

        //}

        public void Initialize()

        {

            this.comboBox1.Items.Clear();

            this.comboBox1.Items.AddRange(new string[] {

            "8",

            "9",

            "10",

            "11",

            "12",

            "14",

            "16",

            "18",

            "20",

            "22",

            "24",

            "26",

            "28",

            "36",

            "48",

            "72"});

        }



        private System.Windows.Forms.ComboBox comboBox1;



        private void comboBox1_DrawItem(object sender, DrawItemEventArgs e)

        {

            e.DrawBackground();

            //e.DrawFocusRectangle();



            string s = comboBox1.Items[e.Index].ToString();

            int fontSize = Convert.ToInt32(comboBox1.Items[e.Index].ToString());

            Font font = new Font("Times New Roman", fontSize, FontStyle.Bold);



            e.Graphics.DrawString(s, font, Brushes.Black, e.Bounds);

        }



        private void comboBox1_MeasureItem(object sender, MeasureItemEventArgs e)

        {

            e.ItemHeight = Convert.ToInt32(comboBox1.Items[e.Index].ToString()) + 12;

        }



    }

}

FontSizeComboBox.cs

初始化下就可以使用了

   private void Form1_Load(object sender, EventArgs e)

        {

            fontSizeComboBox1.Initialize();

        }

 

 

设置richTextBox1选中的字体名称

        private void fontComboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            float fontSize;

            try

            {

                fontSize = richTextBox1.SelectionFont.Size;

            }

            catch

            {

                fontSize = richTextBox1.Font.Size;

            }

            richTextBox1.SelectionFont = new Font(fontComboBox1.Text, fontSize);

        }

View Code

 

获得richTextBox1选中的字体名称

 private void richTextBox1_SelectionChanged(object sender, EventArgs e)

        {

            if (richTextBox1.SelectionFont == null)

                return;



            fontComboBox1.Text = richTextBox1.SelectionFont.Name.ToString();

        }

View Code

 

如何设置richTextBox1选中的字体大小

        private void fontSizeComboBox1_SelectedIndexChanged(object sender, EventArgs e)

        {

            string fontName;

            try

            {

                fontName = richTextBox1.SelectionFont.Name;

            }

            catch

            {

                fontName = richTextBox1.Font.Name;

            }



            float fontSize = Convert.ToSingle(fontSizeComboBox1.Text);

            richTextBox1.SelectionFont = new Font(fontName, fontSize);

        }

View Code

 

获得richTextBox1选中的字体大小

        private void richTextBox1_SelectionChanged(object sender, EventArgs e)

        {

            if (richTextBox1.SelectionFont == null)

                return;

            fontSizeComboBox1.Text = richTextBox1.SelectionFont.Size.ToString();

        }

View Code

 

 

 在toolStrip中添加这2个控件

1 选中TOOL STRIP 置于底层，选中这2个控件置于顶层

2 选中这2个控件按键盘的↑键把控件移上去