private bool ReloadFile(ref CUIDocumentView view)
{
var info = view.Info;
if (info.StreamPositon > info.DocumentOffset)
{
if (view.UnicodeStart << 1 < PRE_SIZE)
{
//要向前加载
throw new NotImplementedException();
}
}
else
{
if (view.UnicodeEnd > view.Info.UnicodeSize - (PRE_SIZE >> 1))
{
//要向后加载
throw new NotImplementedException();
}
}
return(false);//不需要重新加载
}
private void Init()
{
if (IT8951API.Open() == 0)
{
MessageBox.Show("无法打开设备");
return;
}
UInt32[] deviceInfoData = new UInt32[28];
if (IT8951API.GetDeviceInfo(deviceInfoData) != deviceInfoData.Length)
{
MessageBox.Show("无法获取设备信息");
return;
}
DeviceInfo = new DeviceInfo(deviceInfoData);
//CUIEnvironment.WidthOfPixel = (int)DeviceInfo.Width;
CUIEnvironment.WidthOfPixel = (int)DeviceInfo.Width - 4;
CUIEnvironment.HeightOfPixel = (int)DeviceInfo.Height;
LblWidth.Text = CUIEnvironment.WidthOfPixel.ToString();
LblHeight.Text = CUIEnvironment.HeightOfPixel.ToString();
LblAddress.Text = DeviceInfo.ImageBufBase.ToString();
var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Test.txt");
Contract.Ensures(File.Exists(path));
//应该做一次文档格式转换，比如，转为Unicode编码，文档的前128个字节固定空出来；
//todo 加载时，应该往前一段距离加载，将起点落在10-90%之间
CDocumentInfo documentInfo = new CDocumentInfo();
//using (Stream stream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read))
//{
// Int32 buffSize = BUFF_SIZE;
// Int32 unicodeSize = BUFF_SIZE >> 1;
// documentInfo.FileSize = (Int32)stream.Length;
// documentInfo.Buffer = (ushort*)Marshal.AllocHGlobal(buffSize);
// documentInfo.BufferSize = unicodeSize;
// documentInfo.Path = path;
// documentInfo.StreamPositon = documentInfo.StreamPositon + buffSize;
// documentInfo.IsEnd = documentInfo.StreamPositon < documentInfo.FileSize;
//}
LoadDocument(ref documentInfo, path, 0);
//采用8bits格式
var image = new Bitmap(CUIEnvironment.WidthOfPixel, CUIEnvironment.HeightOfPixel, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
//配置调色板
ColorPalette palette = image.Palette;//这里取得的似乎是复制体
for (int i = 0; i < 256; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
image.Palette = palette;
//for (int i = 0; i < byte.MaxValue; i++)
//{
// var c = image.Palette.Entries[i];
// image.Palette.Entries[i] = Color.FromArgb(i, i, i);
//}
//刷成白色背景
var bitmapData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, image.PixelFormat);
var temp = Enumerable.Repeat <byte>(byte.MaxValue, image.Width * image.Height).ToArray();
Marshal.Copy(temp, 0, bitmapData.Scan0, temp.Length);
image.UnlockBits(bitmapData);
Picture.Image = image;
CUIFrameMethods.Create(out frame, CUIFrameType.Main);
CPadding padding;
CCommonLib.CCommonInits.InitPaddingAll(out padding, 12);
var view = CUIViewMethods.Create(CUIViewType.Document);
//view.FontSize = 12;
CFontInfo fontInfo;
CG.GetValidFontSize(view.Style.FontSize, out fontInfo);
view.Size = new CSize()
{
Width = (int)(CUIEnvironment.WidthOfPixel - padding.Left - padding.Right),
Height = (int)(CUIEnvironment.HeightOfPixel - padding.Top - padding.Bottom)
};
view.Style.FontSize = fontInfo.FontSize;
view.Style.FontColor = 0x00;
view.Style.BackColor = 0xFF;
view.Style.BorderColor = 0xFF000030;
view.Style.BorderThickness = 0;
//view.Text = (char*)documentInfo.Buffer;
//view.TextSize = documentInfo.BufferSize;
view.Location = new CPoint()
{
X = padding.Left,
Y = padding.Top
};
documentView = (CUIDocumentView)view.Properties;
documentView.Info = documentInfo;
documentView.Style = new CUIDocumentStyle()
{
MarginLeft = 0,
MarginRight = 0,
MarginTop = 0,
MarginBottom = 0,
SectionFirstLineMarginLeft = fontInfo.Width * 2,
//LineMarginTop = fontInfo.Height >> 1,
LineMarginTop = 2,
LineMarginBottom = 0,
RemainLines = 1,
};
CUIFrameMethods.AddToFrame(ref frame, view);
CUIApp.Add(in frame);
Draw();
}