/// <summary>
/// 查找输入符
/// </summary>
public void OnFindCaret()
{
//---获取焦点
this.Focus();
this.defaultIsCreateCaret = false;
//---判断选中行是否合法
if (this.defaultRowSelectedNum == -1)
{
return;
}
//---数据选择的列号
int currentColumn = this.CalcXScaleColIndex();
//---判断当前列号是否合法
if (currentColumn == -1)
{
return;
}
//---计算宽度
int fontWidth = this.FontWidth();
//---计算字体的高度
int fontHeight = this.FontHeigth();
//---当前起始位置
Point pointA = this.CalcDataScalePoint();
if (this.defaultMousePos.bLeftPos)
{
pointA.X = pointA.X + currentColumn * (fontWidth + this.defaultRowStaffWidth) + (fontWidth) / 2;
}
if (this.defaultMousePos.bRightPos)
{
pointA.X = pointA.X + currentColumn * (fontWidth + this.defaultRowStaffWidth) + fontWidth;
}
pointA.Y += (this.defaultRowSelectedNum) * (fontHeight + this.defaultColStaffWidth);
//---显示输入符
this.OnCreateCaret();
//---设置输入符的位置
//CWinAPICaret.SetCaretPos(pointA.X, pointA.Y+1);
CWinAPICaret.SetCaretPos((pointA.X - this.defaultCaretXOffset), (pointA.Y + this.defaultCaretYOffset));
//---显示输入符
CWinAPICaret.ShowCaret(this.Handle);
}
/// <summary>
/// 鼠标按下的处理-----用于获取光标的位置------显示光标的信息
/// </summary>
/// <param name="e"></param>
protected override void OnMouseDown(MouseEventArgs e)
{
if ((this.defaultNowData == null) || (this.defaultNowData.Length == 0))
{
return;
}
else
{
if (e.Button == MouseButtons.Left)
{
//---获取焦点
this.Focus();
//---记录鼠标的坐标
Point mousePoint = new Point(e.X, e.Y);
//---获取地址栏的起始位置
Point pointA = this.CalcYScalePoint();
//---计算字体的宽度
int fontWidth = this.FontWidth();
//---计算字体的高度
int fontHeight = this.FontHeigth();
//---计算当前控件能够显示的最大行数
int iMaxRowCount = this.defaultMaxRow; //this.CalcYScaleMaxRow();
//---计算数据需要显示的行数
int iTotalRowCount = this.defaultTotalRow; // this.CalcYScaleTotalRow();
//---判断鼠标左键是否是右侧的空白位置
if ((mousePoint.X < this.defaultDataStartHeight) || (mousePoint.X > (this.defaultDataStartWidth - 10)))
{
return;
}
//---判定是否在当前行中
Rectangle nowRectangle = new Rectangle();
Region nowRegion;
//---高度
int iHeight = pointA.Y;
#region 标位于地址区域 -----获取当前选中的行号
for (int ix = this.defaultRowNowNum; ix < this.defaultRowNowNum + iMaxRowCount; ix++)
{
if (iTotalRowCount <= ix)
{
//---表明没有选中行
this.defaultRowSelectedNum = -1;
break;
}
else
{
//---计算矩形区域的尺寸
nowRectangle.X = pointA.X;
nowRectangle.Y = iHeight;
nowRectangle.Width = this.Width - this.defaultExternalLineWidth;
nowRectangle.Height = fontHeight + this.defaultColStaffWidth;
//---指示由矩形和由路径构成的图形形状的内部
nowRegion = new Region(nowRectangle);
//---判断是否找到光标的位置
if (nowRegion.IsVisible(mousePoint))
{
//---表明选中了某一行
this.defaultRowSelectedNum = ix - this.defaultRowNowNum;
//---重新绘制控件
this.Invalidate();
break;
}
iHeight += fontHeight + this.defaultColStaffWidth;
}
}
//---判断是否是本行被选中
if (this.defaultRowSelectedNum == -1)
{
//---没有选中行
return;
}
#endregion
#region 标位于数据区域-----用于创建光标
Point poinaB;
int dataOffset = 0;
if (this.defaultYScaleShow)
{
dataOffset = this.defaultExternalLineWidth / 2 + this.defaultYScaleWidth;
}
else
{
dataOffset = this.defaultExternalLineWidth / 2;
}
poinaB = new Point(dataOffset, pointA.Y);
//---计算位置
nowRectangle.X = poinaB.X;
nowRectangle.Y = poinaB.Y + this.defaultRowSelectedNum * (fontHeight + this.defaultColStaffWidth);
nowRectangle.Width = this.defaultRowShowNum * (this.defaultRowStaffWidth + fontWidth);
nowRectangle.Height = fontHeight + this.defaultColStaffWidth;
//---断鼠标左键是否是左侧的空白位置
if (mousePoint.X < this.defaultDataEndWidth)
{
//---创建光标
this.OnCreateCaret();
//---设置光标
CWinAPICaret.SetCaretPos((this.defaultDataEndWidth + 8), (nowRectangle.Y + this.defaultCaretYOffset / 2));
//---显示光标
CWinAPICaret.ShowCaret(this.Handle);
this.defaultIsHideCaret = false;
this.defaultMousePos.iPos = (this.defaultRowNowNum + this.defaultRowSelectedNum) * this.defaultRowShowNum + 0;
this.defaultMousePos.iArea = 1;
this.defaultMousePos.bLeftPos = true;
this.defaultMousePos.bRightPos = false;
return;
}
nowRegion = new Region(nowRectangle);
//鼠标在指定的区域内
if (nowRegion.IsVisible(mousePoint))
{
//---创建光标
this.OnCreateCaret();
int iDataOffset = nowRectangle.X + this.defaultRowStaffWidth;
int iDataHeight = nowRectangle.Y;
//---遍历查找光标的位置
for (int iy = 0; iy < this.defaultRowShowNum; iy++)
{
nowRectangle.X = iDataOffset;
nowRectangle.Y = iDataHeight;
nowRectangle.Width = fontWidth / 2;
nowRectangle.Height = fontHeight + this.defaultColStaffWidth;
nowRegion = new Region(nowRectangle);
//---数据的左边
if (nowRegion.IsVisible(mousePoint))
{
//---设置光标
CWinAPICaret.SetCaretPos((nowRectangle.X - this.defaultCaretXOffset), (nowRectangle.Y + this.defaultCaretYOffset / 2));
//---显示光标
CWinAPICaret.ShowCaret(this.Handle);
this.defaultIsHideCaret = false;
this.defaultMousePos.iPos = (this.defaultRowNowNum + this.defaultRowSelectedNum) * this.defaultRowShowNum + iy;
this.defaultMousePos.iArea = 1;
this.defaultMousePos.bLeftPos = true;
this.defaultMousePos.bRightPos = false;
break;
}
nowRectangle.X += (fontWidth + 1) / 2;
nowRectangle.Width = (fontWidth + 3) / 2 + this.defaultRowStaffWidth;
nowRegion = new Region(nowRectangle);
//---数据的右边
if (nowRegion.IsVisible(mousePoint))
{
//---设置光标
CWinAPICaret.SetCaretPos((nowRectangle.X - this.defaultCaretXOffset), (nowRectangle.Y + this.defaultCaretYOffset / 2));
//---显示光标
CWinAPICaret.ShowCaret(this.Handle);
this.defaultIsHideCaret = false;
this.defaultMousePos.iPos = (this.defaultRowNowNum + this.defaultRowSelectedNum) * this.defaultRowShowNum + iy;
this.defaultMousePos.iArea = 1;
this.defaultMousePos.bLeftPos = false;
this.defaultMousePos.bRightPos = true;
break;
}
iDataOffset += fontWidth + this.defaultRowStaffWidth;
}
//---如果点击区域超过最大值，则不显示
if (this.defaultMousePos.iPos != -1 && this.defaultMousePos.iPos >= this.defaultNowData.Length)
{
this.OnHideCaret();
}
//---添加---注销
nowRegion.Dispose();
}
else
{
this.OnHideCaret();
}
#endregion
}
}
//处理基类鼠标按下的事件
//base.OnMouseDown( e );
}