mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-19 20:39:01 +00:00
172 lines
6.1 KiB
C#
172 lines
6.1 KiB
C#
using System;
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namespace Orvid.Graphics.FontSupport.fnt
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{
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internal class FntTextRenderer : ITextRenderer
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{
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private FntLoader ldr;
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public FntTextRenderer(FntLoader loadr)
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{
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this.ldr = loadr;
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}
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public override void Render(Image im, BoundingBox clip, AffineTransform tx, string text, Vec2 loc, Pixel color)
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{
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if (text == null || text.Length == 0)
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return;
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int offset = 0,
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x = 0, y = 0,
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FontDepth = ldr.GetDepth(),
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x_min = int.MaxValue,
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y_min = int.MaxValue,
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x_max = int.MinValue,
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y_max = int.MinValue,
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charsCount = text.Length,
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fHeight, scan, fg_r, fg_g,
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fg_b, bx, by, offsetLine,
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fPixel, px, py, bg_r,
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bg_g, bg_b, r, g, b
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;
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int[] fData;
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Vec2 src, dst;
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Rectangle glyph_box = new Rectangle();
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FntGlyph glyph;
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Image img;
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if ((ldr != null) && (charsCount > 0))
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{
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char[] chrs = text.ToCharArray();
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int mH = 0;
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int mY = 0;
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int mxY = 0;
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int tW = 0;
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int tH = 0;
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for (uint m = 0; m < text.Length; m++)
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{
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glyph = ldr.GetGlyph(chrs[m]);
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glyph_box = glyph.GetBounds();
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if (glyph_box.Height > mH)
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{
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mH = glyph_box.Height + 2;
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}
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if (glyph_box.Y < mY)
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{
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mY = glyph_box.Y;
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}
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if (glyph_box.Y > mxY)
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{
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mxY = glyph_box.Y;
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}
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tW += glyph_box.Width + glyph_box.X + 2;
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}
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tH = mH + (mxY - mY);
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y = mH + -mY;
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img = new Image(tW, tH);
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float f_max = (1 << FontDepth) - 1;
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if (f_max == 0)
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f_max = 1;
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glyph_box = new Rectangle();
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src = new Vec2();
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dst = new Vec2();
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//throw new Exception();
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for (int i = 0; i < charsCount; i++)
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{
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glyph = ldr.GetGlyph(chrs[i]);
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//throw new Exception();
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if (glyph == null)
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{
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continue;
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}
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glyph_box = glyph.GetBounds();
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fHeight = glyph_box.Height;
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fData = glyph.Data;
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scan = fData.Length / fHeight;
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//throw new Exception();
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fg_r = color.R;
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fg_g = color.G;
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fg_b = color.B;
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//throw new Exception();
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//box location
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bx = x + offset + glyph_box.X;
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by = y - fHeight - glyph_box.Y;
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throw new Exception();
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for (int k = 0; k < fHeight; k++)
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{
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offsetLine = k * scan;
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for (int j = 0; j < scan; j++)
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{
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fPixel = fData[offsetLine + j];
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if (fPixel != 0)
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{
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//pixel location
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px = bx + j;
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py = by + k;
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if (tx != null)
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{
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//src.setLocation(px, py);
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//tx.transform(src, dst);
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#warning TODO: Add support for this.
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//px = dst.X;
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//py = dst.Y;
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}
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//clip
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if (clip == null || clip.Contains(px, py))
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{
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//compute color
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Pixel bg_color = img.GetPixel((uint)px, (uint)py);
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bg_r = bg_color.R;
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bg_g = bg_color.G;
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bg_b = bg_color.B;
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//todo improve this pixel composition
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float alpha = fPixel / f_max;
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r = bg_r + ((int)((fg_r - bg_r) * alpha)) & 0xFF;
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g = bg_g + ((int)((fg_g - bg_g) * alpha)) & 0xFF;
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b = bg_b + ((int)((fg_b - bg_b) * alpha)) & 0xFF;
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Pixel nw = new Pixel((byte)r, (byte)g, (byte)b, 255);
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img.SetPixel((uint)px, (uint)py, nw);
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if (x_min > px)
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x_min = px;
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if (y_min > py)
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y_min = py;
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if (x_max < px)
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x_max = px;
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if (y_max < py)
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y_max = py;
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}
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}
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}
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}
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offset += glyph.Width;
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}
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//img = ImageManipulator.Resize(img, new Vec2(img.Width * 8, img.Height * 8), ImageManipulator.ScalingAlgorithm.Bicubic);
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//img = ImageManipulator.Resize(img, Vec2.Zero, ImageManipulator.ScalingAlgorithm.Hq2x);
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//img = ImageManipulator.Resize(img, Vec2.Zero, ImageManipulator.ScalingAlgorithm.Hq4x);
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img.FloodFill(new Vec2(3,3), new Pixel(true), Colors.Green);
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im.DrawImage(loc, img);
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}
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}
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}
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}
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