protected void LoadItemFromStreamAlone(Stream aStream, ref HCCustomItem aItem)
{
string vFileExt = "";
ushort vFileVersion = 0;
byte vLan = 0;
aStream.Position = 0;
HC._LoadFileFormatAndVersion(aStream, ref vFileExt, ref vFileVersion, ref vLan); // 文件格式和版本
if ((vFileExt != HC.HC_EXT) && (vFileExt != "cff."))
{
throw new Exception("加载失败，不是" + HC.HC_EXT + "文件！");
}
int vStyleNo = HCStyle.Null;
byte[] vBuffer = BitConverter.GetBytes(vStyleNo);
aStream.Read(vBuffer, 0, vBuffer.Length);
vStyleNo = BitConverter.ToInt32(vBuffer, 0);
if (aItem == null)
{
aItem = CreateItemByStyle(vStyleNo);
}
aItem.LoadFromStream(aStream, null, vFileVersion);
if (vStyleNo > HCStyle.Null)
{
HCTextStyle vTextStyle = new HCTextStyle();
try
{
vTextStyle.LoadFromStream(aStream, vFileVersion);
vStyleNo = Style.GetStyleNo(vTextStyle, true);
aItem.StyleNo = vStyleNo;
}
finally
{
vTextStyle.Dispose();
}
}
int vParaNo = -1;
HCParaStyle vParaStyle = new HCParaStyle();
try
{
vParaStyle.LoadFromStream(aStream, vFileVersion);
vParaNo = Style.GetParaNo(vParaStyle, true);
}
finally
{
vParaStyle.Dispose();
}
aItem.ParaNo = vParaNo;
}
protected void DataLoadLiteStream(Stream stream, HCLoadProc proc)
{
string vFileFormat = "";
ushort vFileVersion = 0;
byte vLang = 0;
HC._LoadFileFormatAndVersion(stream, ref vFileFormat, ref vFileVersion, ref vLang);
using (HCStyle vStyle = new HCStyle())
{
vStyle.LoadFromStream(stream, vFileVersion);
proc(vFileVersion, vStyle);
}
}
public void LoadFromStream(Stream aStream)
{
this.BeginUpdate();
try
{
// 清除撤销恢复数据
FUndoList.Clear();
FUndoList.SaveState();
try
{
FUndoList.Enable = false;
FData.Clear();
FStyle.Initialize();
aStream.Position = 0;
string vFileExt = "";
ushort viVersion = 0;
byte vLang = 0;
HC._LoadFileFormatAndVersion(aStream, ref vFileExt, ref viVersion, ref vLang);
if (vFileExt != HC.HC_EXT)
{
throw new Exception("加载失败，不是" + HC.HC_EXT + "文件！");
}
FStyle.LoadFromStream(aStream, viVersion);
FData.LoadFromStream(aStream, FStyle, viVersion);
DoMapChanged();
}
finally
{
FUndoList.RestoreState();
}
}
finally
{
this.EndUpdate();
}
}
private void DoLoadFromStream(Stream stream, HCStyle style, LoadSectionProcHandler loadSectionProc)
{
stream.Position = 0;
string vFileExt = "";
ushort vFileVersion = 0;
byte vLang = 0;
HC._LoadFileFormatAndVersion(stream, ref vFileExt, ref vFileVersion, ref vLang);
if (vFileExt != HC.HC_EXT)
{
throw new Exception("加载失败，不是" + HC.HC_EXT + "文件！");
}
if (vFileVersion > HC.HC_FileVersionInt)
{
throw new Exception("加载失败，当前编辑器最高支持版本为"
+ HC.HC_FileVersionInt.ToString() + "的文件，无法打开版本为" + vFileVersion.ToString() + "的文件！");
}
DoLoadStreamBefor(stream, vFileVersion); // 触发加载前事件
style.LoadFromStream(stream, vFileVersion); // 加载样式表
loadSectionProc(vFileVersion); // 加载节数量、节数据
DoLoadStreamAfter(stream, vFileVersion);
}
protected void Paste()
{
IDataObject vIData = Clipboard.GetDataObject();
if (vIData.GetDataPresent(HC.HC_EXT))
{
MemoryStream vStream = (MemoryStream)vIData.GetData(HC.HC_EXT);
try
{
string vFileFormat = "";
ushort vFileVersion = 0;
byte vLan = 0;
vStream.Position = 0;
HC._LoadFileFormatAndVersion(vStream, ref vFileFormat, ref vFileVersion, ref vLan); // 文件格式和版本
HCStyle vStyle = new HCStyle();
try
{
vStyle.LoadFromStream(vStream, vFileVersion);
this.BeginUpdate();
try
{
FData.InsertStream(vStream, vStyle, vFileVersion);
}
finally
{
this.EndUpdate();
}
}
finally
{
vStyle.Dispose();
}
}
finally
{
vStream.Close();
vStream.Dispose();
}
}
else
if (vIData.GetDataPresent(DataFormats.Text))
{
FData.InsertText(Clipboard.GetText());
}
else
if (vIData.GetDataPresent(DataFormats.Bitmap))
{
Image vImage = (Image)vIData.GetData(typeof(Bitmap));
HCRichData vTopData = FData.GetTopLevelData() as HCRichData;
HCImageItem vImageItem = new HCImageItem(vTopData);
vImageItem.Image = new Bitmap(vImage);
vImageItem.Width = vImageItem.Image.Width;
vImageItem.Height = vImageItem.Image.Height;
vImageItem.RestrainSize(vTopData.Width, vImageItem.Height);
FData.InsertItem(vImageItem);
}
}
