hOLOlu LCD

C# Kayan Yazı Denemesi

TextDesignerCSLibrary/GDIPath.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+
+namespace TextDesignerCSLibrary
+{
+    public class GDIPath
+    {
+        static public bool MeasureGraphicsPath(
+            System.Drawing.Graphics graphics,
+            System.Drawing.Drawing2D.GraphicsPath graphicsPath,
+            ref float fStartX,
+            ref float fStartY,
+            ref float fPixelsWidth,
+            ref float fPixelsHeight)
+        {
+	        if(graphicsPath.PathData.Points.Length<=0)
+		        return false;
+
+	        float fHighestX = graphicsPath.PathData.Points[0].X;
+	        float fHighestY = graphicsPath.PathData.Points[0].Y;
+	        float fLowestX = graphicsPath.PathData.Points[0].X;
+	        float fLowestY = graphicsPath.PathData.Points[0].Y;
+            int length = graphicsPath.PathData.Points.Length;
+            PointF[] points = graphicsPath.PathData.Points;
+	        for(int i=1; i<length; ++i)
+	        {
+                if (points[i].X < fLowestX)
+                    fLowestX = points[i].X;
+                if (points[i].Y < fLowestY)
+                    fLowestY = points[i].Y;
+                if (points[i].X > fHighestX)
+                    fHighestX = points[i].X;
+                if (points[i].Y > fHighestY)
+                    fHighestY = points[i].Y;
+	        }
+
+	        // Hack!
+            if (fLowestX < 0.0f)
+            {
+                fStartX = fLowestX;
+                fLowestX = -fLowestX;
+            }
+            else
+            {
+                fStartX = fLowestX;
+                fLowestX = 0.0f;
+            }
+
+            if (fLowestY < 0.0f)
+            {
+                fStartY = fLowestY;
+                fLowestY = -fLowestY;
+            }
+            else
+            {
+                fStartY = fLowestY;
+                fLowestY = 0.0f;
+            }
+
+	        bool b = ConvertToPixels(
+		        graphics,
+		        fLowestX + fHighestX - fPixelsWidth,
+                fLowestY + fHighestY - fPixelsHeight,
+                ref fStartX,
+                ref fStartY,
+		        ref fPixelsWidth,
+		        ref fPixelsHeight );
+
+	        return b;
+        }
+
+        static public bool MeasureGraphicsPathRealHeight(
+            System.Drawing.Graphics graphics,
+            System.Drawing.Drawing2D.GraphicsPath graphicsPath,
+            ref float fStartX,
+            ref float fStartY,
+            ref float fPixelsWidth,
+            ref float fPixelsHeight)
+        {
+            if (graphicsPath.PathData.Points.Length <= 0)
+                return false;
+
+            float fHighestX = graphicsPath.PathData.Points[0].X;
+            float fHighestY = graphicsPath.PathData.Points[0].Y;
+            float fLowestX = graphicsPath.PathData.Points[0].X;
+            float fLowestY = graphicsPath.PathData.Points[0].Y;
+            int length = graphicsPath.PathData.Points.Length;
+            PointF[] points = graphicsPath.PathData.Points;
+            for (int i = 1; i < length; ++i)
+            {
+                if (points[i].X < fLowestX)
+                    fLowestX = points[i].X;
+                if (points[i].Y < fLowestY)
+                    fLowestY = points[i].Y;
+                if (points[i].X > fHighestX)
+                    fHighestX = points[i].X;
+                if (points[i].Y > fHighestY)
+                    fHighestY = points[i].Y;
+            }
+
+            fStartX = fLowestX;
+            fStartY = fLowestY;
+
+            bool b = ConvertToPixels(
+                graphics,
+                fLowestX + fHighestX - fPixelsWidth,
+                fLowestY + fHighestY - fPixelsHeight,
+                ref fStartX,
+                ref fStartY,
+                ref fPixelsWidth,
+                ref fPixelsHeight);
+
+            return b;
+        }
+
+        static public bool ConvertToPixels(
+            System.Drawing.Graphics graphics,
+            float fSrcWidth,
+            float fSrcHeight,
+            ref float fStartX,
+            ref float fStartY,
+            ref float fDestWidth,
+            ref float fDestHeight)
+        {
+            GraphicsUnit unit = graphics.PageUnit;
+	        float fDpiX = graphics.DpiX;
+	        float fDpiY = graphics.DpiY;
+
+	        if(unit==GraphicsUnit.World)
+		        return false; // dunno how to convert
+
+	        if(unit==GraphicsUnit.Display||unit==GraphicsUnit.Pixel)
+	        {
+		        fDestWidth = fSrcWidth;
+		        fDestHeight = fSrcHeight;
+		        return true;
+	        }
+
+	        if(unit==GraphicsUnit.Point)
+	        {
+                fStartX = 1.0f / 72.0f * fDpiX * fStartX;
+                fStartY = 1.0f / 72.0f * fDpiY * fStartY;
+                fDestWidth = 1.0f / 72.0f * fDpiX * fSrcWidth;
+                fDestHeight = 1.0f / 72.0f * fDpiY * fSrcHeight;
+                return true;
+	        }
+
+	        if(unit==GraphicsUnit.Inch)
+	        {
+                fStartX = fDpiX * fStartX;
+                fStartY = fDpiY * fStartY;
+                fDestWidth = fDpiX * fSrcWidth;
+                fDestHeight = fDpiY * fSrcHeight;
+                return true;
+	        }
+
+	        if(unit==GraphicsUnit.Document)
+	        {
+                fStartX = 1.0f / 300.0f * fDpiX * fStartX;
+                fStartY = 1.0f / 300.0f * fDpiY * fStartY;
+                fDestWidth = 1.0f / 300.0f * fDpiX * fSrcWidth;
+                fDestHeight = 1.0f / 300.0f * fDpiY * fSrcHeight;
+                return true;
+	        }
+
+	        if(unit==GraphicsUnit.Millimeter)
+	        {
+                fStartX = 1.0f / 25.4f * fDpiX * fStartX;
+                fStartY = 1.0f / 25.4f * fDpiY * fStartY;
+                fDestWidth = 1.0f / 25.4f * fDpiX * fSrcWidth;
+                fDestHeight = 1.0f / 25.4f * fDpiY * fSrcHeight;
+                return true;
+	        }
+
+	        return false;
+        }
+    }
+}