private static Bitmap CreateBarcode(String data)
{
data = data.ToUpper();
if (data.Length > 0)
{
if (data[0] != '*')
{
data = "*" + data;
}
if (data[data.Length - 1] != '*')
{
data = data + "*";
}
}
Bitmap barCode = new Bitmap(1, 1);
System.Drawing.Font threeOfNine = new System.Drawing.Font("Free 3 of 9", 240, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
System.Drawing.Font timesNR = new System.Drawing.Font("Times New Roman", 80, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
Graphics graphics = Graphics.FromImage(barCode);
SizeF dataSize = new SizeF();
SizeF dataSize_bar = graphics.MeasureString(data, threeOfNine);
SizeF dataSize_text = graphics.MeasureString(data, timesNR);
if (dataSize_bar.Width > dataSize_text.Width)
{
dataSize.Width = dataSize_bar.Width;
}
else
{
dataSize.Width = dataSize_text.Width;
}
dataSize.Height = (dataSize_bar.Height + dataSize_text.Height);
barCode = new Bitmap(barCode, dataSize.ToSize());
graphics = Graphics.FromImage(barCode);
graphics.Clear(Color.White);
graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
graphics.DrawString(data, threeOfNine, new SolidBrush(Color.Black), ((dataSize.Width/2f)-(dataSize_bar.Width/2f)), 0);
graphics.DrawString(data, timesNR, new SolidBrush(Color.Black), ((dataSize.Width / 2f) - (dataSize_text.Width / 2f)), dataSize_bar.Height);
graphics.Flush();
threeOfNine.Dispose();
graphics.Dispose();
return barCode;
}
// 根据Font，得到字符串的宽度
// parameter:
// g Graphics对象
// font Font对象
// strText 字符串
// return:
// 字符串的宽度
public static int GetWidth(Graphics g,
Font font,
string strText)
{
SizeF sizef = new SizeF();
sizef = g.MeasureString(
strText,
font);
return sizef.ToSize().Width + 6; // 微调
}
private void timer1_Tick(object sender, EventArgs e)
{
//Thread.Sleep(100);
label3.Text = load + l1;
if (i < 10)
{
label2.Text = "0" + i.ToString();
}
else
{
label2.Text = i.ToString();
}
int r = random.Next(100, 150);
int g = random.Next(50, 100);
int b = random.Next(150, 250);
SizeF s = new SizeF(textBox2.Size.Width + 2, textBox2.Size.Height);
textBox2.Size = s.ToSize();
if (i % 5 == 0)
{
textBox2.BackColor = Color.FromArgb(r, g, b);
label1.ForeColor = Color.FromArgb(b, r, g);
textBox1.BackColor = Color.FromArgb(g, b, r);
label3.Text = load + l2;
}
textBox2.Update();
label1.Update();
textBox1.Update();
label3.Update();
Thread.Sleep(100);
if (textBox2.Size.Width >= textBox1.Size.Width)
{
timer1.Stop();
Thread.Sleep(1000);
this.Hide();
main.ShowDialog();
}
i++;
}
private Size CalculateMinimumSize()
{
using ( Graphics g = Graphics.FromHwnd( Handle ) )
{
_sizeText = g.MeasureString( Text, Font, -1, _stringFormat );
}
// MeasureString() cuts off the bottom pixel for descenders no matter
// which StringFormatFlags are chosen
//
_sizeText.Height += 1F;
return _sizeText.ToSize();
}
protected override void OnPaint(PaintEventArgs e)
{
if (target == null)
return;
if (scale <= float.Epsilon)
return;
//calc startPlace
var r = target.VisibleRange;
if (startPlace.iLine > r.Start.iLine)
startPlace.iLine = r.Start.iLine;
else
{
var endP = target.PlaceToPoint(r.End);
endP.Offset(0, -(int)(ClientSize.Height / scale) + target.CharHeight);
var pp = target.PointToPlace(endP);
if (pp.iLine > startPlace.iLine)
startPlace.iLine = pp.iLine;
}
startPlace.iChar = 0;
//calc scroll pos
var linesCount = target.Lines.Count;
var sp1 = (float)r.Start.iLine / linesCount;
var sp2 = (float)r.End.iLine / linesCount;
//scale graphics
e.Graphics.ScaleTransform(scale, scale);
//draw text
var size = new SizeF(ClientSize.Width / scale, ClientSize.Height / scale);
target.DrawText(e.Graphics, startPlace, size.ToSize());
//draw visible rect
var p0 = target.PlaceToPoint(startPlace);
var p1 = target.PlaceToPoint(r.Start);
var p2 = target.PlaceToPoint(r.End);
var y1 = p1.Y - p0.Y;
var y2 = p2.Y + target.CharHeight - p0.Y;
e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
using (var brush = new SolidBrush(Color.FromArgb(50, ForeColor)))
using (var pen = new Pen(brush, 1 / scale))
{
var rect = new Rectangle(0, y1, (int)((ClientSize.Width - 1) / scale), y2 - y1);
e.Graphics.FillRectangle(brush, rect);
e.Graphics.DrawRectangle(pen, rect);
}
//draw scrollbar
if (scrollbarVisible)
{
e.Graphics.ResetTransform();
e.Graphics.SmoothingMode = SmoothingMode.None;
using (var brush = new SolidBrush(Color.FromArgb(200, ForeColor)))
{
var rect = new RectangleF(ClientSize.Width - 3, ClientSize.Height*sp1, 2,
ClientSize.Height*(sp2 - sp1));
e.Graphics.FillRectangle(brush, rect);
}
}
needRepaint = false;
}
protected override void OnHandleCreated(EventArgs e)
{
if ( builder.Length > 0 )
{
this.exactSize = MeasureString( builder.ToString() );
this.AutoScrollMinSize = exactSize.ToSize();
}
this.OnFontChanged(e);
base.OnHandleCreated (e);
}
public void Write( string text )
{
int lengthSoFar = builder.Length;
builder.Append( text );
if ( this.IsHandleCreated )
{
bool isUpdateVisible = this.AutoScrollPosition.Y + this.AutoScrollMinSize.Height <= this.ClientRectangle.Height;
if ( text != null && lengthSoFar > 0 && builder[lengthSoFar-1] == '\n' ) // use fast path
{
SizeF textSize = MeasureString( text );
this.exactSize = new SizeF(
Math.Max( this.exactSize.Width, textSize.Width ),
this.exactSize.Height + textSize.Height - this.fastPathHeightAdjust );
this.AutoScrollMinSize = exactSize.ToSize();
}
else
{
this.exactSize = MeasureString( builder.ToString() );
this.AutoScrollMinSize = exactSize.ToSize();
}
if ( isUpdateVisible ) this.Invalidate();
}
}
private static Bitmap CreateLabel(String data)
{
data = data.ToUpper();
Bitmap docTypeLabel = new Bitmap(1, 1);
System.Drawing.Font timesNR = new System.Drawing.Font("Times New Roman", 80, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
Graphics graphics = Graphics.FromImage(docTypeLabel);
SizeF dataSize = new SizeF();
SizeF dataSize_text = graphics.MeasureString(data, timesNR);
dataSize.Width = dataSize_text.Width;
dataSize.Height = dataSize_text.Height;
docTypeLabel = new Bitmap(docTypeLabel, dataSize.ToSize());
graphics = Graphics.FromImage(docTypeLabel);
graphics.Clear(Color.White);
graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
graphics.DrawString(data, timesNR, new SolidBrush(Color.Black), ((dataSize.Width / 2f) - (dataSize_text.Width / 2f)), 0);
graphics.Flush();
timesNR.Dispose();
graphics.Dispose();
return docTypeLabel;
}