private void RenderToPictureBox()
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
CBitmap context;
CGraphicInits.InitBitmap(out context, CPixelFormat.Format8bppIndexed, CUIEnvironment.WidthOfPixel, CUIEnvironment.HeightOfPixel);
CUIApp.Render(ref context, true);//渲染出来
var renderTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
var image = (Bitmap)Picture.Image;
var modifyRect = new CRect()
{
MinX = 0,
MinY = 0,
MaxX = Picture.Width,
MaxY = Picture.Height
};
//画到屏幕上
EInkRender.DrawToBitmap(ref image, context, modifyRect);
var drawToBitmapTime = stopwatch.ElapsedMilliseconds;
stopwatch.Restart();
Picture.Invalidate();
Picture.Update();
var updateTime = stopwatch.ElapsedMilliseconds;
}
private unsafe void BtnRender_Click(object sender, EventArgs e)
{
int fontSize = (int)NudFontSize.Value;
CFont.Init(MakePath());
Bitmap image = new Bitmap(Picture.Width, Picture.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Picture.Image = image;
Graphics g = Graphics.FromImage(image);
g.Clear(Color.White);
g.Dispose();
var text = string.Intern(Txt.Text);//弄成常量
//var text = Charset.Content;
CFontInfo fontInfo;
CG.GetValidFontSize((int)NudFontSize.Value, out fontInfo);
CBitmap bitmap;
CGraphicInits.InitBitmap(out bitmap, CPixelFormat.Format8bppIndexed, image.Width, image.Height);
CTextInfo textInfo = new CTextInfo()
{
Start = 0,
End = text.Length,
Length = text.Length
};
textInfo.Text = Utils.ToCharPointer(text);
var modifyRect = new CRect();
var rect = new CRect()
{
MinX = 0, MinY = 0, MaxX = 400, MaxY = 300
};
CG.DrawText(ref bitmap, textInfo, fontInfo, rect, new CPoint()
{
X = 0, Y = 0
}, out modifyRect);
EInkRender.DrawToBitmap(ref image, bitmap, rect);
////注意：设置负数的缩进，会有文本绘制不全的问题
//FontMargin margin = new FontMargin();
//margin.PageMarginLeft = 12;
//margin.PageMarginRight = margin.PageMarginLeft;
//margin.PageMarginTop = margin.PageMarginLeft;
//margin.PageMarginRight = margin.PageMarginLeft;
//margin.LineMarginTop = 4;
//margin.LineMarginBottom = 2;
//margin.MarginLeft = -2;
//margin.MarginRight = -1;
//margin.MarginTop = 0;
//margin.MarginBottom = 0;
//margin.ParagraphFirstLineMarginLeft = (short)((info.Width + margin.MarginLeft + margin.MarginRight) * 2);//空2个字符
//int startX = margin.PageMarginLeft + margin.MarginLeft;
//int x = startX + margin.ParagraphFirstLineMarginLeft;
//int y = margin.PageMarginTop + margin.MarginTop;
//FontBitmap matrix;
//int maxX = bitmap.Width - margin.PageMarginRight - margin.MarginRight - 1;
//int maxY = bitmap.Height - margin.PageMarginBottom - margin.LineMarginBottom - margin.MarginBottom - 1;
//int lineHeight = info.Height + margin.LineMarginTop + margin.LineMarginBottom + margin.MarginTop + margin.MarginBottom;
////注意
//for (int i = 0; i < text.Length; i++)
//{
// var character = text[i];
// //强制换行
// if (character == '\n' || (character == '\r' && i < text.Length - 1) && character == '\n')
// {
// x = startX + margin.ParagraphFirstLineMarginLeft;
// y += lineHeight;
// //跳过\n
// if (character == '\r')
// {
// i++;
// }
// continue;
// }
// if (Fonts.ePageGetFontMatrix(character, fontSize, out matrix))
// {
// int width = info.Width;
// //新起一行
// if (x + width > maxX)
// {
// x = startX;
// y += lineHeight;
// }
// if (y > maxY)
// {
// break;
// }
// Fonts.ePageDrawFontMatrix(bitmap, x, y, matrix, info);
// x += width + margin.MarginLeft + margin.MarginRight;
// }
//}
}