public override void Draw(int int_0, Rectangle rectangle_0, double double_0, double double_1)
{
IStyleGalleryClass styleGalleryClass = null;
if (this.m_pStyle is IScaleBar)
{
styleGalleryClass = new ScaleBarStyleGalleryClass();
}
else if (this.m_pStyle is IScaleText)
{
styleGalleryClass = new ScaleTextStyleGalleryClass();
}
else if (this.m_pStyle is INorthArrow)
{
styleGalleryClass = new NorthArrowStyleGalleryClass();
}
if (styleGalleryClass != null)
{
tagRECT tagRECT = default(tagRECT);
tagRECT.left = rectangle_0.Left;
tagRECT.right = rectangle_0.Right;
tagRECT.top = rectangle_0.Top;
tagRECT.bottom = rectangle_0.Bottom;
styleGalleryClass.Preview(this.m_pStyle, int_0, ref tagRECT);
}
}
public Image CreateImageFromStyleGalleryClass(IStyleGalleryClass pStyleGalleryClass, object pSymbol, int iWidth, int iHeight, Color pBackColor)
{
try
{
if (pStyleGalleryClass == null)
{
return(null);
}
if (pSymbol == null)
{
return(null);
}
if (iWidth <= 0)
{
iWidth = 0x20;
}
if (iHeight <= 0)
{
iHeight = 0x20;
}
Bitmap image = null;
image = new Bitmap(iWidth, iHeight);
Graphics graphics = null;
graphics = Graphics.FromImage(image);
if (!pBackColor.IsEmpty)
{
SolidBrush brush = new SolidBrush(pBackColor);
graphics.FillRectangle(brush, 0, 0, iWidth, iHeight);
}
IntPtr hdc = new IntPtr();
hdc = graphics.GetHdc();
if (hdc.ToInt64() == 0L)
{
return(null);
}
tagRECT rectangle = new tagRECT();
try
{
pStyleGalleryClass.Preview(pSymbol, int.Parse(hdc.ToInt64().ToString()), ref rectangle);
}
catch (Exception)
{
}
graphics.ReleaseHdc(hdc);
return(image);
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "FunFactory.SymbolFun", "CreateImageFromStyleGalleryClass", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
return(null);
}
}
public Bitmap PreviewSymbol(IStyleGalleryClass pStyleGalleryClass, object galleryItem, int imgWidth, int imgHeight)
{
Bitmap bitmap = new Bitmap(imgWidth, imgHeight);
Graphics graphics = Graphics.FromImage(bitmap);
tagRECT rect = new tagRECT();
rect.right = bitmap.Width;
rect.bottom = bitmap.Height;
System.IntPtr hdc = graphics.GetHdc();
pStyleGalleryClass.Preview(galleryItem, hdc.ToInt32(), ref rect);
graphics.ReleaseHdc(hdc);
graphics.Dispose();
return bitmap;
}
public Bitmap PreviewSymbol(IStyleGalleryClass pStyleGalleryClass, object galleryItem, int imgWidth, int imgHeight)
{
Bitmap bitmap = new Bitmap(imgWidth, imgHeight);
Graphics graphics = Graphics.FromImage(bitmap);
tagRECT rect = new tagRECT();
rect.right = bitmap.Width;
rect.bottom = bitmap.Height;
System.IntPtr hdc = graphics.GetHdc();
pStyleGalleryClass.Preview(galleryItem, hdc.ToInt32(), ref rect);
graphics.ReleaseHdc(hdc);
graphics.Dispose();
return(bitmap);
}
///<summary>
///获取符号库中符号
///</summary>
///<param name="sServerStylePath">符号库全路径名称</param>
///<param name="sGalleryClassName">GalleryClass名称</param>
///<param name="symbolName">符号名称</param>
///<returns>符号</returns>
private ISymbol GetSymbol(string sServerStylePath, string sGalleryClassName, string symbolName)
{
try
{
//ServerStyleGallery对象
IStyleGallery pStyleGaller = new ServerStyleGalleryClass();
IStyleGalleryStorage pStyleGalleryStorage = pStyleGaller as IStyleGalleryStorage;
IEnumStyleGalleryItem pEnumSyleGalleryItem = null;
IStyleGalleryItem pStyleGallerItem = null;
IStyleGalleryClass pStyleGalleryClass = null;
//使用IStyleGalleryStorage接口的AddFile方法加载ServerStyle文件
pStyleGalleryStorage.AddFile(sServerStylePath);
//遍历ServerGallery中的Class
for (int i = 0; i < pStyleGaller.ClassCount; i++)
{
pStyleGalleryClass = pStyleGaller.get_Class(i);
if (pStyleGalleryClass.Name != sGalleryClassName)
{
continue;
}
//获取EnumStyleGalleryItem对象
pEnumSyleGalleryItem = pStyleGaller.get_Items(sGalleryClassName, sServerStylePath, "");
pEnumSyleGalleryItem.Reset();
//遍历pEnumSyleGalleryItem
pStyleGallerItem = pEnumSyleGalleryItem.Next();
while (pStyleGallerItem != null)
{
if (pStyleGallerItem.Name == symbolName)
{
//获取符号
ISymbol pSymbol = pStyleGallerItem.Item as ISymbol;
System.Runtime.InteropServices.Marshal.ReleaseComObject(pEnumSyleGalleryItem);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pStyleGalleryClass);
return(pSymbol);
}
pStyleGallerItem = pEnumSyleGalleryItem.Next();
}
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(pEnumSyleGalleryItem);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pStyleGalleryClass);
return(null);
}
catch (Exception Err)
{
MessageBox.Show(Err.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return(null);
}
}
public static Bitmap StyleGalleryItemToBmp(int pWidth, int pHeight, IStyleGalleryClass pStyleGalleryClass, IStyleGalleryItem pStyleGalleryItem)
{
/// 通过符号库中的IStyleGalleryItem 和 IStyleGalleryClass类别生成图片预览
Bitmap bitmap = new Bitmap(pWidth, pHeight);
System.Drawing.Graphics pGraphics = System.Drawing.Graphics.FromImage(bitmap);
tagRECT rect = new tagRECT();
rect.right = bitmap.Width;
rect.bottom = bitmap.Height;
//生成预览
IntPtr hdc = new IntPtr();
hdc = pGraphics.GetHdc();
pStyleGalleryClass.Preview(pStyleGalleryItem.Item, hdc.ToInt32(), ref rect);
pGraphics.ReleaseHdc(hdc);
pGraphics.Dispose();
return bitmap;
}
/// <summary>
/// 获取指定种类，指定符号id的符号
/// </summary>
/// <param name="sGallery">符号种类（e.g.填充颜色）</param>
/// <param name="id">符号id</param>
/// <returns>符号</returns>
public static ISymbol GetStyleSymbol(string sGallery, int id)
{
try
{
IStyleGallery pStyleGallery = new ServerStyleGalleryClass();
IStyleGalleryStorage pStyleGalleryStorage = pStyleGallery as IStyleGalleryStorage;
for (int i = pStyleGalleryStorage.FileCount - 1; i >= 0; i--)
{
pStyleGalleryStorage.RemoveFile(pStyleGalleryStorage.get_File(i));
}
pStyleGalleryStorage.AddFile(_STYLEFILE);
IEnumStyleGalleryItem pEnumStyleItem = pStyleGallery.get_Items(sGallery, _STYLEFILE, "");
pEnumStyleItem.Reset();
IStyleGalleryItem mStyleItem = pEnumStyleItem.Next();
IStyleGalleryClass mStyleClass = null;
for (int i = 0; i < pStyleGallery.ClassCount; i++)
{
mStyleClass = pStyleGallery.get_Class(i);
string str = mStyleClass.Name;
if (str == sGallery)
{
break;
}
}
ISymbol result = null;
while (mStyleItem != null)
{
if (mStyleItem.ID == id)
{
result = mStyleItem.Item as ISymbol;
break;
}
mStyleItem = pEnumStyleItem.Next();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(pEnumStyleItem);
return(result);
}
catch
{
return(null);
}
}
public static Bitmap StyleGalleryItemToBmp(int pWidth, int pHeight, IStyleGalleryClass pStyleGalleryClass, IStyleGalleryItem pStyleGalleryItem)
{ /// 通过符号库中的IStyleGalleryItem 和 IStyleGalleryClass类别生成图片预览
Bitmap bitmap = new Bitmap(pWidth, pHeight);
System.Drawing.Graphics pGraphics = System.Drawing.Graphics.FromImage(bitmap);
tagRECT rect = new tagRECT();
rect.right = bitmap.Width;
rect.bottom = bitmap.Height;
//生成预览
IntPtr hdc = new IntPtr();
hdc = pGraphics.GetHdc();
pStyleGalleryClass.Preview(pStyleGalleryItem.Item, hdc.ToInt32(), ref rect);
pGraphics.ReleaseHdc(hdc);
pGraphics.Dispose();
return(bitmap);
}
public Bitmap StyleGalleryItemToBmp(int iWidth, int iHeight, IStyleGalleryClass mStyleGlyCs, IStyleGalleryItem mStyleGlyItem)
{
//建立符合规格的内存图片
Bitmap bmp = new Bitmap(iWidth, iHeight);
Graphics gImage = Graphics.FromImage(bmp);
//建立对应的符号显示范围
tagRECT rect = new tagRECT();
rect.right = bmp.Width;
rect.bottom = bmp.Height;
//生成预览
System.IntPtr hdc = new IntPtr();
hdc = gImage.GetHdc();
//在图片上绘制符号
mStyleGlyCs.Preview(mStyleGlyItem.Item, hdc.ToInt32(), ref rect);
gImage.ReleaseHdc(hdc);
gImage.Dispose();
return(bmp);
}
//通过指定的高度和宽度生成图象
public System.Drawing.Bitmap StyleGalleryItemToBmp(
int iWidth,
int iHeight,
IStyleGalleryClass styleGalleryClass,
IStyleGalleryItem styleGalleryItem)
{
Bitmap bmp = new Bitmap(iWidth, iHeight);
Graphics gImage = Graphics.FromImage(bmp);
ESRI.ArcGIS.esriSystem.tagRECT rect = new ESRI.ArcGIS.esriSystem.tagRECT();
rect.right = bmp.Width;
rect.bottom = bmp.Height;
//生成预览
System.IntPtr hdc = new IntPtr();
hdc = gImage.GetHdc();
styleGalleryClass.Preview(styleGalleryItem.Item, hdc.ToInt32(), ref rect);
gImage.ReleaseHdc(hdc);
gImage.Dispose();
return(bmp);
}
public Bitmap StyleGalleryItemToBmp(int iWidth, int iHeight, IStyleGalleryClass mStyleGlyCs, IStyleGalleryItem mStyleGlyItem)
{
//建立符合规格的内存图片
Bitmap bmp = new Bitmap(iWidth, iHeight);
Graphics gImage = Graphics.FromImage(bmp);
//建立对应的符号显示范围
tagRECT rect = new tagRECT();
rect.right = bmp.Width;
rect.bottom = bmp.Height;
//生成预览
System.IntPtr hdc = new IntPtr();
hdc = gImage.GetHdc();
//在图片上绘制符号
mStyleGlyCs.Preview(mStyleGlyItem.Item, hdc.ToInt32(), ref rect);
gImage.ReleaseHdc(hdc);
gImage.Dispose();
return bmp;
}
/// <summary>
/// 读取ServerStyle中的文件并显示
/// </summary>
/// <param name="StyleGalleryClass">符号文件的种类</param>
/// <param name="CategoryClass">符号的种类</param>
/// <param name="cbxCategory">符号文件的种类的容器</param>
/// <param name="lvSymbol">符号位图的容器</param>
public static void ReadServerStyle(string StyleGalleryClass, string CategoryClass, ComboBox cbxCategory, ListView lvSymbol)
{
lvSymbol.Items.Clear();
lvSymbol.LargeImageList.Images.Clear();
IStyleGallery pStyleGallery = new ServerStyleGalleryClass();
IStyleGalleryStorage pStyleGalleryStorage = pStyleGallery as IStyleGalleryStorage;
// 增加符号文件
//pStyleGalleryStorage.TargetFile = _STYLEFILE;
for (int i = pStyleGalleryStorage.FileCount - 1; i >= 0; i--)
{
pStyleGalleryStorage.RemoveFile(pStyleGalleryStorage.get_File(i));
}
pStyleGalleryStorage.AddFile(_STYLEFILE);
// 根据当前符号的类别和文件得到符号的枚举循环子,符号类别包括Fill Symbol,Line Symbol等
IEnumStyleGalleryItem pEnumStyleItem = pStyleGallery.get_Items(StyleGalleryClass, _STYLEFILE, "");
// 得到符号文件类别的各个条目,增加到一个Combox中
if (cbxCategory != null)
{
cbxCategory.Items.Clear();
cbxCategory.Items.Add(_ALLSYMBOLS);
IEnumBSTR pEnumBSTR = pStyleGallery.get_Categories(StyleGalleryClass);
pEnumBSTR.Reset();
string Category = "";
Category = pEnumBSTR.Next();
while (Category != null)
{
cbxCategory.Items.Add(Category);
Category = pEnumBSTR.Next();
}
}
pEnumStyleItem.Reset();
IStyleGalleryItem mStyleItem = pEnumStyleItem.Next();
IStyleGalleryClass mStyleClass = null;
for (int i = 0; i < pStyleGallery.ClassCount; i++)
{
mStyleClass = pStyleGallery.get_Class(i);
string str = mStyleClass.Name;
if (str == StyleGalleryClass)
{
break;
}
}
// 得到各个符号并转化为图片
int ImageIndex = 0;
ImageList Largeimage = lvSymbol.LargeImageList;
if (CategoryClass == "" || CategoryClass == _ALLSYMBOLS)
{
while (mStyleItem != null)
{
// 调用另一个类的方法将符号转化为图片
Bitmap bmpB = StyleGalleryItemToBmp(32, 32, mStyleClass, mStyleItem);
Largeimage.Images.Add(bmpB);
ListViewItem lvItem = new ListViewItem(new string[] { mStyleItem.Name, mStyleItem.ID.ToString(), mStyleItem.Category }, ImageIndex);
lvSymbol.Items.Add(lvItem);
ImageIndex++;
mStyleItem = pEnumStyleItem.Next();
}
}
else
{
while (mStyleItem != null)
{
if (CategoryClass == mStyleItem.Category)
{
// 调用另一个类的方法将符号转化为图片
Bitmap bmpB = StyleGalleryItemToBmp(32, 32, mStyleClass, mStyleItem);
Largeimage.Images.Add(bmpB);
ListViewItem lvItem = new ListViewItem(new string[] { mStyleItem.Name, mStyleItem.ID.ToString(), mStyleItem.Category }, ImageIndex);
lvSymbol.Items.Add(lvItem);
ImageIndex++;
}
mStyleItem = pEnumStyleItem.Next();
}
}
// 必须采用此方式进行释放，第二次才能正常读取
System.Runtime.InteropServices.Marshal.ReleaseComObject(pEnumStyleItem);
}
