Image CreatePreviewImage(string s,int pos,char c)
{
int height = 80;
int width = 530;
int space = 2;
int size = 35;
int leftSpan = 15;
int topSpan = 40;
ArrayList squareArray = new ArrayList();
IGlyph glyph;
for(int i=0;i<s.Length;i++)
{
glyph = new Square(leftSpan + i*(size + space),topSpan,size,Color.HotPink,GlyphAppearance.Flat,s[i].ToString());
squareArray.Add(glyph);
}
SquareLine squareLine = new SquareLine(1,1,1,squareArray);
Rectangle rec = new Rectangle(0,0,0,0);
if(pos >= 1 && pos <= s.Length)
{
rec = ((IGlyph)squareArray[pos-1]).Bounds;
}
else if(pos == s.Length + 1)
{
Rectangle lastRectangle = ((IGlyph)squareArray[pos-2]).Bounds;
rec = new Rectangle(lastRectangle.X + lastRectangle.Width + space,lastRectangle.Y - lastRectangle.Height,lastRectangle.Width,lastRectangle.Height);
}
Square insertSquare = new Square(rec.X,topSpan - size - 2,rec.Width,Color.Green,GlyphAppearance.Flat,c.ToString());
//最后初始化所有的迭代器
IIterator arrayIterator = squareLine.CreateIterator();
IIterator nullIterator = insertSquare.CreateIterator();
Bitmap bmp = new Bitmap(width,height);
Graphics g = Graphics.FromImage(bmp);
for(IIterator iterator = arrayIterator.First();!arrayIterator.IsDone();iterator = arrayIterator.Next())
{
iterator.CurrentItem.Draw(g);
}
nullIterator.CurrentItem.Draw(g);
return bmp;
}
public override void InitGraph()
{
SquareLine squareLine;
Square insertSquare;
ArrayList squareArray = new ArrayList();
IGlyph glyph;
for(int i=0;i<status.Length;i++)
{
glyph = new Square(40 + i*(squareSize + squareSpace),20 + squareSize + 10,squareSize,status.图形背景色,status.图形外观,status.L[i].ToString());
squareArray.Add(glyph);
}
//最后再添加一个额外的元素,以保存插入元素后的数组的最后一个元素
squareArray.Add(new Square(1,1,2,Color.Transparent,""));
squareLine = new SquareLine(20,80,status.Length*(squareSize+20+10),squareArray);
Rectangle rec = new Rectangle(0,0,0,0);
if(status.I >= 1 && status.I <= status.Length)
{
rec = ((IGlyph)squareArray[status.I-1]).Bounds;
}
else if(status.I == status.Length + 1)
{
Rectangle lastRectangle = ((IGlyph)squareArray[status.I-2]).Bounds;
rec = new Rectangle(lastRectangle.X + lastRectangle.Width + squareSpace,lastRectangle.Y - 10 - lastRectangle.Height,lastRectangle.Width,lastRectangle.Height);
}
insertSquare = new Square(rec.X,20,rec.Width,status.插入元素背景色,status.图形外观,status.E.ToString());
//最后初始化所有的迭代器
arrayIterator = squareLine.CreateIterator();
nullIterator = insertSquare.CreateIterator();
}
