using System.ComponentModel;
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using System.Drawing;
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namespace System.Windows.Forms
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{
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public class RibbonLabel : RibbonItem
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{
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#region Fields
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private int _labelWidth;
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private const int spacing = 3;
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#endregion
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#region Methods
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protected virtual int MeasureHeight()
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{
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if (Owner != null)
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return 16 + Owner.ItemMargin.Vertical;
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return 16 + 4;
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}
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/// <summary>
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/// Measures the size of the panel on the mode specified by the event object
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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/// <returns></returns>
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public override Size MeasureSize(object sender, RibbonElementMeasureSizeEventArgs e)
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{
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if (!Visible && ((Site == null) || !Site.DesignMode))
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{
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return new Size(0, 0);
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}
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Font f = new Font("Microsoft Sans Serif", 8);
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if (Owner != null)
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f = Owner.Font;
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int w = string.IsNullOrEmpty(Text) ? 0 : ((_labelWidth > 0) ? _labelWidth : (e.Graphics.MeasureString(Text, f).ToSize().Width + 6));
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SetLastMeasuredSize(new Size(w, MeasureHeight()));
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return LastMeasuredSize;
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}
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/// <summary>
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/// Raises the paint event and draws the
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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public override void OnPaint(object sender, RibbonElementPaintEventArgs e)
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{
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if (Owner != null)
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{
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Owner.Renderer.OnRenderRibbonItem(new RibbonItemRenderEventArgs(Owner, e.Graphics, Bounds, this));
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StringFormat f = StringFormatFactory.CenterNoWrap(StringTrimming.None);
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f.Alignment = (StringAlignment)TextAlignment;
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Rectangle clipBounds = Rectangle.FromLTRB(Bounds.Left + 3, Bounds.Top + Owner.ItemMargin.Top, Bounds.Right - 3, Bounds.Bottom - Owner.ItemMargin.Bottom);
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Owner.Renderer.OnRenderRibbonItemText(new RibbonTextEventArgs(Owner, e.Graphics, Bounds, this, clipBounds, Text, f));
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}
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}
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/// <summary>
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/// Sets the bounds of the panel
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/// </summary>
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/// <param name="bounds"></param>
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public override void SetBounds(Rectangle bounds)
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{
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base.SetBounds(bounds);
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}
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#endregion
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#region Properties
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[Description("Sets the width of the label portion of the control")]
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[Category("Appearance")]
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[DefaultValue(0)]
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public int LabelWidth
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{
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get => _labelWidth;
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set
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{
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if (_labelWidth != value)
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{
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_labelWidth = value;
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NotifyOwnerRegionsChanged();
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}
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}
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}
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#endregion
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}
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}
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