private void Timer_Tick(object sender, EventArgs e)
{
try
{
if (BoundScreen != null)
{
BoundScreen.ActionFlush();
}
}
finally
{
timer.Start();
}
}
private void buildBuffer()
{
var tSize = this.Size;
if (tSize.Height < 1)
{
return;
}
if (TerminalFont == null)
{
return;
}
var tmpG = this.CreateGraphics();
terminalCanvasBitmap = new Bitmap(tSize.Width, tSize.Height, tmpG);
terminalCanvasBitmapGraphic = Graphics.FromImage((Image)terminalCanvasBitmap);;
var charS = terminalCanvasBitmapGraphic.MeasureString("M", TerminalFont);
charWidth = Convert.ToInt32(charS.Width + .5) - 6; // This is HACK! Need to figure out how to deal with font margins
charHeight = Convert.ToInt32(charS.Height + .5);
charSize = new Size(charWidth, charHeight);
termWidth = tSize.Width / charWidth;
termHeight = tSize.Height / charHeight;
terminalRectangle = new Rectangle(new Point(0, 0), new Size(termWidth * charWidth, termHeight * charHeight));
if (BoundScreen.Width != termWidth ||
BoundScreen.Height != termHeight)
{
OnTerminalSizeChanged?.Invoke(termWidth, termHeight); // Need to resize the ansi-decoder/vt100 BoundScreen is attached to
BoundScreen.ReSize(termWidth, termHeight);
}
BoundScreen.DoRefresh(false);
}
protected override void OnPaint(PaintEventArgs pe)
{
// Dump our frame buffer bitmap to the screen (double-buffered hopefully)
if (terminalCanvasBitmap != null)
{
pe.Graphics.DrawImage((Image)terminalCanvasBitmap, 0, 0);
}
// Paint the cursor (if any)
if (!cursorIsVisible)
{
return;
}
// Flashing
if (!cursorOn)
{
return;
}
// For now, we just draw the character inverted
var glyph = BoundScreen.GetGlyph(cursorCurrent.X, cursorCurrent.Y);
glyph.Invert();
var glyphMap = getGlyph(glyph.Attributes.BackgroundColor,
glyph.Attributes.ForegroundColor,
glyph.Attributes.Elements,
glyph.Char);
var cursorRect = new Rectangle(new Point(cursorCurrent.X * charWidth, cursorCurrent.Y * charHeight), charSize);
pe.Graphics.DrawImage((Image)glyphMap, cursorRect);
base.OnPaint(pe);
}
