public void ToolStripRenderer_DrawItemText_Invoke_CallsRenderItemText(ToolStripItem item, string text, Rectangle textRectangle, Color textColor, Font textFont, TextFormatFlags format)
{
using var image = new Bitmap(10, 10);
using Graphics graphics = Graphics.FromImage(image);
var eventArgs = new ToolStripItemTextRenderEventArgs(graphics, item, text, textRectangle, textColor, textFont, format);
var renderer = new SubToolStripRenderer();
int callCount = 0;
ToolStripItemTextRenderEventHandler handler = (sender, e) =>
{
Assert.Same(renderer, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
renderer.RenderItemText += handler;
renderer.DrawItemText(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
renderer.RenderItemText -= handler;
renderer.DrawItemText(eventArgs);
Assert.Equal(1, callCount);
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// toolstripitemtextrendereventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this ToolStripItemTextRenderEventHandler toolstripitemtextrendereventhandler, Object sender, ToolStripItemTextRenderEventArgs e, AsyncCallback callback)
{
if (toolstripitemtextrendereventhandler == null)
{
throw new ArgumentNullException("toolstripitemtextrendereventhandler");
}
return(toolstripitemtextrendereventhandler.BeginInvoke(sender, e, callback, null));
}
public void DrawItemText(ToolStripItemTextRenderEventArgs e)
{
this.OnRenderItemText(e);
ToolStripItemTextRenderEventHandler handler = this.Events[EventRenderItemText] as ToolStripItemTextRenderEventHandler;
if (handler != null)
{
handler(this, e);
}
}
/// <include file='doc\ToolStripRenderer.uex' path='docs/doc[@for="ToolStripRenderer.DrawItemText"]/*' />
/// <devdoc>
/// Draw text
/// </devdoc>
public void DrawItemText(ToolStripItemTextRenderEventArgs e)
{
OnRenderItemText(e);
ToolStripItemTextRenderEventHandler eh = Events[EventRenderItemText] as ToolStripItemTextRenderEventHandler;
if (eh != null)
{
eh(this, e);
}
}
protected virtual void OnRenderItemText(ToolStripItemTextRenderEventArgs e)
{
if (e.TextDirection == ToolStripTextDirection.Vertical90)
{
GraphicsState gs = e.Graphics.Save();
PointF p = new PointF(e.Graphics.Transform.OffsetX, e.Graphics.Transform.OffsetY);
e.Graphics.ResetTransform();
e.Graphics.RotateTransform(90);
RectangleF r = new RectangleF((e.Item.Height - e.TextRectangle.Height) / 2, (e.TextRectangle.Width + p.X) * -1 - 18, e.TextRectangle.Height, e.TextRectangle.Width);
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
e.Graphics.DrawString(e.Text, e.TextFont, ThemeEngine.Current.ResPool.GetSolidBrush(e.TextColor), r, sf);
e.Graphics.Restore(gs);
}
else if (e.TextDirection == ToolStripTextDirection.Vertical270)
{
GraphicsState gs = e.Graphics.Save();
PointF p = new PointF(e.Graphics.Transform.OffsetX, e.Graphics.Transform.OffsetY);
e.Graphics.ResetTransform();
e.Graphics.RotateTransform(270);
RectangleF r = new RectangleF(-e.TextRectangle.Height - (e.Item.Height - e.TextRectangle.Height) / 2, (e.TextRectangle.Width + p.X) + 4, e.TextRectangle.Height, e.TextRectangle.Width);
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
e.Graphics.DrawString(e.Text, e.TextFont, ThemeEngine.Current.ResPool.GetSolidBrush(e.TextColor), r, sf);
e.Graphics.Restore(gs);
}
else
{
TextRenderer.DrawText(e.Graphics, e.Text, e.TextFont, e.TextRectangle, e.TextColor, e.TextFormat);
}
ToolStripItemTextRenderEventHandler eh = (ToolStripItemTextRenderEventHandler)Events[RenderItemTextEvent];
if (eh != null)
{
eh(this, e);
}
}
