Image CreatePreviewImage(string r)
{
int width = 530;
int startX = 10;
int maxHeight = 145;
int heightUnit;
int histogramWidth = 20;
int histogramSpace = 15;
int bottomY = 30;
heightUnit = (maxHeight - bottomY - 15) / r.Length;
int height = 0;
ArrayList squareArray = new ArrayList();
IGlyph glyph;
glyph = new MyRectangle(startX,maxHeight - bottomY - 45,histogramWidth,45,Color.Gold,GlyphAppearance.Popup,"?");
squareArray.Add(glyph);
for(int i=0;i<r.Length;i++)
{
height = GetHeight(r,i,heightUnit);
glyph = new MyRectangle(startX + (i + 1)*(histogramWidth + histogramSpace),maxHeight - bottomY - height,histogramWidth,height,Color.HotPink,GlyphAppearance.Popup,r[i].ToString());
squareArray.Add(glyph);
}
squareLine = new SquareLine(1,1,1,squareArray);
//最后初始化所有的迭代器
IIterator arrayIterator = squareLine.CreateIterator();
Bitmap bmp = new Bitmap(width,maxHeight);
Graphics g = Graphics.FromImage(bmp);
if(arrayIterator != null)
{
for(IIterator iterator = arrayIterator.First();!arrayIterator.IsDone();iterator = arrayIterator.Next())
{
iterator.CurrentItem.Draw(g);
}
}
return bmp;
}
public override void InitGraph()
{
heightUnit = (maxHeight - bottomY - 15) / (status.High - status.Low + 1);
int height = 0;
ArrayList squareArray = new ArrayList();
IGlyph glyph;
glyph = new MyRectangle(startX,maxHeight - bottomY - 100,histogramWidth,100,status.头元素背景色,status.图形外观,"?");
squareArray.Add(glyph);
for(int i = 0;i < (status.High - status.Low + 1);i++)
{
height = GetHeight(status.R,i,heightUnit);
glyph = new MyRectangle(startX + (i + 1)*(histogramWidth + histogramSpace),maxHeight - bottomY - height,histogramWidth,height,status.图形背景色,status.图形外观,status.R[i].ToString());
squareArray.Add(glyph);
}
squareLine = new SquareLine(1,1,1,squareArray);
//最后初始化所有的迭代器
arrayIterator = squareLine.CreateIterator();
}