Method RenderTexture

TexturedFontEditor/FontEditor.cs:1109–1182

()

        }

        public void RenderTexture()
        {
            _MaxLineHeight = 0;

            Bitmap tTexture = new Bitmap(_TexWidth, _TexHeight);
            using (Graphics tGraph = Graphics.FromImage(tTexture))
            {
                tGraph.Clear(Color.Transparent);
                tGraph.TextRenderingHint = AntiAlias;

                // 第一次遍历 计算出字形大小和Location.x以及行索引
                Dictionary<CharDef, int> tLineDict = new Dictionary<CharDef, int>();
                SortedDictionary<int, int> tLineHeight = new SortedDictionary<int, int>();
                int tLeft = 0;
                int tLine = 0;
                foreach (CharDef x in _CharList)
                {
                    Size tCharSize = x.GetCharSize(tGraph);

                    // 检查字体能不能容纳到纹理中
                    if (tLeft + tCharSize.Width >= TexWidth - 1)
                    {
                        tLine++;
                        tLeft = 0;

                        x.Location = new Point(tLeft, x.Location.Y);
                        tLineDict.Add(x, tLine);

                        tLeft += tCharSize.Width;
                    }
                    else
                    {
                        x.Location = new Point(tLeft, x.Location.Y);
                        tLineDict.Add(x, tLine);

                        tLeft += tCharSize.Width;
                    }

                    // 处理行高
                    int tCurLineHeight = tCharSize.Height;
                    if (!tLineHeight.ContainsKey(tLine))
                        tLineHeight.Add(tLine, tCurLineHeight);
                    else
                    {
                        if (tCurLineHeight > tLineHeight[tLine])
                            tLineHeight[tLine] = tCurLineHeight;
                    }
                }

                // 计算行基线
                int[] tBaseLine = new int[tLineHeight.Count];
                foreach (KeyValuePair<int, int> y in tLineHeight)
                {
                    if (y.Key == 0)
                        tBaseLine[0] = y.Value;
                    else
                        tBaseLine[y.Key] = tBaseLine[y.Key - 1] + y.Value;