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ButtonBar Control using .NET

, 3 Dec 2009
Themed ButtonBar control supporting custom draw with full Designer support
using System;
using System.Drawing;
using System.Drawing.Text;
using System.Windows.Forms;
using ButtonBarsControl.Design.Entity;
using ButtonBarsControl.Design.Enums;
using ButtonBarsControl.Design.Layout;

namespace ButtonBarTest
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
            cbxTheme.SelectedIndex = 0;
        }

        private void bBarMain_CustomDrawBackGround(object sender, DrawBackGroundEventArgs e)
        {
            if (!chkUseCustomDrawBackground.Checked)
                return;
            e.Graphics.FillRectangle(new SolidBrush(Color.Gainsboro), e.Bounds);
            e.Graphics.DrawString("CustDrawBackground", Font, new SolidBrush(Color.LightYellow), 0, bBarMain.Height/2);
            e.DrawBorder();
            e.Handeled = true;
        }

        private void bBarMain_CustomDrawItems(object sender, DrawItemsEventArgs e)
        {
            if (!chkCustomDrawItems.Checked)
                return;
            Color c = Color.Transparent;
            switch (e.State)
            {
                case State.Disabled:
                    c = Color.Gray;
                    break;
                case State.Hover:
                    c = Color.Green;
                    break;
                case State.Pressed:
                    c = Color.Red;
                    break;
                case State.Normal:
                    c = Color.Blue;
                    break;
                case State.Selected:
                    c = Color.BlueViolet;
                    break;
                case State.SelectedHover:
                    c = Color.Green;
                    break;
            }
            DrawString(e.Graphics, e.Bounds, "CustomDrawItem", Color.LightYellow, e.Item.Appearance.AppearenceText, true);
            DrawString(e.Graphics, e.Bounds, e.Item.Caption, c, e.Item.Appearance.AppearenceText, e.Bar.UseMnemonic);
            e.Handeled = true;
        }

        private void DrawString(Graphics g, Rectangle rectangle, string text, Color color, AppearenceText app,
                                bool showShort)
        {
            if (rectangle.IsEmpty)
                return;
            var format = new StringFormat();
            format.Trimming = app.Trimming;
            format.Alignment = app.Alignment;
            format.LineAlignment = app.LineAlignment;
            if (showShort)
            {
                format.HotkeyPrefix = HotkeyPrefix.Show;
            }
            g.DrawString(text, app.Font, new SolidBrush(color), rectangle, format);
        }

        private void chkUseCustomDrawBackground_CheckedChanged(object sender, EventArgs e)
        {
            bBarMain.Invalidate();
        }

        private void chkCustomDrawItems_CheckedChanged(object sender, EventArgs e)
        {
            bBarMain.Invalidate();
        }

        private void chkUseTheme_CheckedChanged(object sender, EventArgs e)
        {
            cbxTheme.Enabled = chkUseTheme.Checked;
            bBarMain.ThemeProperty.UseTheme = chkUseTheme.Checked;
            bBarMain.Invalidate();
        }

        private void cbxTheme_SelectedIndexChanged(object sender, EventArgs e)
        {
            bBarMain.ThemeProperty.ColorScheme =
                (ColorScheme) Enum.Parse(typeof (ColorScheme), cbxTheme.SelectedItem.ToString());
            bBarMain.Invalidate();
        }

        private void chkShowBorders_CheckedChanged(object sender, EventArgs e)
        {
            bBarApp.ShowBorders = chkShowBorders.Checked;
            bBarApp.Invalidate();
        }

        private void buttonBar3_Click(object sender, EventArgs e)
        {
            HitTestInfo test = bBarHit.HitTest(bBarHit.PointToClient(MousePosition));
            richTextBox1.Text = "HitArea = " + test.Area + ", ButtonIndex = " + test.ButtonIndex + Environment.NewLine +
                                richTextBox1.Text;
        }

        private void chkRound_CheckedChanged(object sender, EventArgs e)
        {
            if (chkRound.Checked)
            {
                bBarApp.Appearance.Bar.CornerRadius = 8;
                bBarApp.Appearance.Bar.AppearanceBorder.CornerShape.Assign(new CornerShape(CornerType.Round));
                bBarApp.Padding = new Padding(6);
            }
            else
            {
                bBarApp.Appearance.Bar.CornerRadius = 0;
                bBarApp.Appearance.Bar.AppearanceBorder.CornerShape.Assign(new CornerShape(CornerType.Square));
                bBarApp.Padding = new Padding(4);
            }
        }

        private void chkShadow_CheckedChanged(object sender, EventArgs e)
        {
            if (chkShadow.Checked)
            {
                bBarApp.Appearance.Item.AppearenceText.Xshift = 1;
                bBarApp.Appearance.Item.AppearenceText.Yshift = 1;
            }
            else
            {
                bBarApp.Appearance.Item.AppearenceText.Xshift = 0;
                bBarApp.Appearance.Item.AppearenceText.Yshift = 0;
            }
            bBarApp.Invalidate();
        }

        private void chkDisabled_CheckedChanged(object sender, EventArgs e)
        {
            bBarApp.Enabled = !chkDisabled.Checked;
        }

        private void chkChangeSpacing_CheckedChanged(object sender, EventArgs e)
        {
            bBarApp.Spacing = chkChangeSpacing.Checked ? 8 : 4;
            bBarApp.Invalidate();
        }

        private void chkAlignment_CheckedChanged(object sender, EventArgs e)
        {
            bBarApp.Appearance.Item.AppearenceText.Alignment = chkAlignment.Checked
                                                                   ? StringAlignment.Near
                                                                   : StringAlignment.Center;
        }
    }
}

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About the Author

Manish Ranjan Kumar
Software Developer (Senior)
India India
No Biography provided

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Web03 | 2.8.140926.1 | Last Updated 3 Dec 2009
Article Copyright 2009 by Manish Ranjan Kumar
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