/// <summary>
/// 绘制操作
/// </summary>
/// <param name="e"></param>
protected override void OnPaint(PaintEventArgs e)
{
//自己声明的Graphics
Graphics g = e.Graphics;
if (backGroundColor != null)
{
Brush background = new SolidBrush(backGroundColor);
Rectangle rect = new Rectangle(0, 0, this.Width, this.Height);
g.FillRectangle(background, rect);
background.Dispose();
}
if (adapter != null)
{
adapter.setIndex(-1);
DataModel data = null;
PositionRectData rectData = null;
while (adapter.next())
{
data = adapter.getItem();
rectData = adapter.getPositionRect();
childPaint(e, rectData, myColor, TextColor);
rectData.right = this.Width;
list.Add(rectData);
}
introducePaint(g, currentData, myColor, TextColor);
}
//释放资源
//utils.disposeGraphics(g);
//g.Dispose();
}
/// <summary>
/// 鼠标移动判定是哪个数据被选中
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns>DataModel 基础数据类型</returns>
private DataModel mouseMove(int x, int y)
{
//Console.WriteLine("x = {0}, y ={1}", x, y);
//全部遍历太耗时;从y获取比较接近的index
//如果panel的数据太多超过最大高度 Y会变为负数;
if (y < 0)
{
y = -y;
if (MaxHeight < y)
{
MaxHeight = y;
}
y = MaxHeight + (MaxHeight - y);
}
//Console.WriteLine("x = {0}, y ={1}", x, y);
int index = getIndexFromList(y);
int size = list.Count;
Console.WriteLine("index = {0}, count = {1}", index, list.Count);
PositionRectData item = null;
int times = 0;
for (int i = index; i < size; i++)
{
item = list[i];
times++;
if (item.isInRect(x, y))
{
if (currentIndex == i)
{
return(item.data);
}
currentIndex = i;
this.Invalidate();
currentData = new CurrentPositionRectData(x, y, item.data);
popPanel.Location = new Point(x, y);
popPanel.Width = currentData.Width;
popPanel.Height = currentData.Height;
popPanel.BackColor = Color.White;
//graphics.FillRectangle(new SolidBrush(Color.Black), rect);
return(item.data);
}
}
Console.WriteLine("times = {0}", times);
return(null);
}
/// <summary> /// 子类的绘制 /// </summary> /// <param name="e"></param> public abstract void childPaint(PaintEventArgs e, PositionRectData rectPosData, Color GraphicalColor, Color TextColor);
