Clip Text : Text « 2D Graphics « C# / C Sharp
Clip Text
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
class FontMenuForm : Form {
protected string strText = "Clip Text";
protected Font font = new Font("Times New Roman", 24);
public static void Main() {
Application.Run(new FontMenuForm());
}
public FontMenuForm() {
ResizeRedraw = true;
}
protected void DoPage(Graphics grfx, Color clr, int cx, int cy) {
GraphicsPath path = new GraphicsPath();
float fFontSize = PointsToPageUnits(grfx, font);
path.AddString(strText, font.FontFamily, (int)font.Style,
fFontSize, new PointF(0, 0), new StringFormat());
grfx.SetClip(path);
RectangleF rectfBounds = path.GetBounds();
grfx.TranslateClip(
(cx - rectfBounds.Width) / 2 - rectfBounds.Left,
(cy - rectfBounds.Height) / 2 - rectfBounds.Top);
Random rand = new Random();
for (int y = 0; y < cy; y++) {
Pen pen = new Pen(Color.FromArgb(rand.Next(255),
rand.Next(255),
rand.Next(255)));
grfx.DrawBezier(pen, new Point(0, y),
new Point(cx / 3, y + cy / 3),
new Point(2 * cx / 3, y - cy / 3),
new Point(cx, y));
}
}
public float GetAscent(Graphics grfx, Font font) {
return font.GetHeight(grfx) *
font.FontFamily.GetCellAscent(font.Style) /
font.FontFamily.GetLineSpacing(font.Style);
}
public float GetDescent(Graphics grfx, Font font) {
return font.GetHeight(grfx) *
font.FontFamily.GetCellDescent(font.Style) /
font.FontFamily.GetLineSpacing(font.Style);
}
public float PointsToPageUnits(Graphics grfx, Font font) {
float fFontSize;
if (grfx.PageUnit == GraphicsUnit.Display)
fFontSize = 100 * font.SizeInPoints / 72;
else
fFontSize = grfx.DpiX * font.SizeInPoints / 72;
return fFontSize;
}
}
