/// <summary>
/// 是否在Button按钮区域
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
protected bool IsInRegion(Point p, int columnIndex, int rowIndex)
{
Rectangle cellBounds = DataGridView[columnIndex, rowIndex].ContentBounds;
RectangleCommon.GetSmallRectOfRectangle(cellBounds, this.Size, out this.m_absBtnRegion);
return(this.m_absBtnRegion.Contains(p));
}
/// <summary>
/// 鼠标捕获期间绘制可逆图形的回调处理
/// </summary>
protected virtual void OnReversibleDrawCallback()
{
System.Drawing.Rectangle rect = RectangleCommon.GetRectangle(this.myStartPosition, this.myCurrentPosition);
switch (intReversibleShape)
{
case ReversibleShapeStyle.Line:
System.Windows.Forms.ControlPaint.DrawReversibleLine(this.myStartPosition, this.myCurrentPosition, System.Drawing.Color.Black);
break;
case ReversibleShapeStyle.Rectangle:
System.Windows.Forms.ControlPaint.DrawReversibleFrame(rect, System.Drawing.Color.SkyBlue, System.Windows.Forms.FrameStyle.Dashed);
break;
case ReversibleShapeStyle.FillRectangle:
System.Windows.Forms.ControlPaint.FillReversibleRectangle(rect, System.Drawing.Color.Black);
break;
case ReversibleShapeStyle.Custom:
if (Draw != null)
{
Draw(this, null);
}
break;
}
}
protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
//此段代码主要解决xp下，如果鼠标默认在按钮列上，按钮的默认绘制样式问题
if (this.m_firstDraw)
{
this.m_firstDraw = false;
this.m_curBtnState = this.Enabled ? PushButtonState.Normal : PushButtonState.Disabled;
}
// 是否需要重绘单元格的背景颜色
m_brushCellBack = this.DataGridView.SelectedCells.Contains(this) ?
new SolidBrush(cellStyle.SelectionBackColor) : new SolidBrush(cellStyle.BackColor);
graphics.FillRectangle(m_brushCellBack, cellBounds.X, cellBounds.Y, cellBounds.Width, cellBounds.Height);
//计算button的区域
m_buttonRegion = RectangleCommon.GetSmallRectOfRectangle(cellBounds, this.Size, out this.m_absBtnRegion);
//绘制按钮
if (m_enabled)
{
this.InternalDrawButton(graphics, m_buttonRegion, m_curBtnState, Text);
}
else
{
this.InternalDrawButton(graphics, m_buttonRegion, PushButtonState.Disabled, Text);
}
// 填充单元格的边框
base.PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
}
public System.Drawing.PointF AbsUnTransformPoint(float x, float y)
{
SimpleRectangleTransform pre = null;
SimpleRectangleTransform next = null;
SimpleRectangleTransform cur = null;
foreach (SimpleRectangleTransform item in this)
{
if (item.Enable == false)
{
continue;
}
if (intLimitedPageIndex >= 0 && item.PageIndex != intLimitedPageIndex)
{
continue;
}
if (item.DescRectF.Contains(x, y))
{
return(item.UnTransformPointF(x, y));
}
if (y >= item.DescRectF.Top && y < item.DescRectF.Bottom)
{
cur = item;
break;
}
if (y < item.DescRectF.Top)
{
if (next == null || item.DescRectF.Top < next.DescRectF.Top)
{
next = item;
}
}
if (y > item.DescRectF.Bottom)
{
if (pre == null || item.DescRectF.Bottom > pre.DescRectF.Bottom)
{
pre = item;
}
}
}//foreach
if (cur == null)
{
if (pre != null)
{
cur = pre;
}
else
{
cur = next;
}
}
if (cur == null)
{
return(System.Drawing.PointF.Empty);
}
System.Drawing.PointF p = new System.Drawing.PointF(x, y);
p = RectangleCommon.MoveInto(p, cur.DescRectF);
return(cur.UnTransformPointF(p));
}
private System.Drawing.Point GetMousePosition(System.Drawing.Point p)
{
if (myBindControl != null)
{
p = myBindControl.PointToClient(p);
}
return(RectangleCommon.MoveInto(p, this.myClipRectangle));
}
public static System.Drawing.Drawing2D.Matrix RotateGraphics(
System.Drawing.Graphics g,
System.Drawing.Rectangle Bounds,
float Angle)
{
// System.Drawing.Point cp = RectangleCommon.Center( Bounds );
// System.Drawing.Rectangle rect = new System.Drawing.Rectangle (
// cp.X - ContentBounds.Width / 2 ,
// cp.Y - ContentBounds.Height / 2 ,
// ContentBounds.Width ,
// ContentBounds.Height );
System.Drawing.Drawing2D.Matrix om = g.Transform;
System.Drawing.Drawing2D.Matrix nm = om.Clone();
System.Drawing.Point p = RectangleCommon.Center(Bounds);
nm.RotateAt(Angle, new System.Drawing.PointF(p.X, p.Y));
g.Transform = nm;
return(om);
}
/// <summary>
/// 根据转换后的坐标位置查找转换信息对象
/// </summary>
/// <param name="x">点X坐标</param>
/// <param name="y">点Y坐标</param>
/// <param name="compatibility">是否启用兼容模式。若启用兼容模式，
/// 如果没有找到和指定点精确匹配的坐标转换信息对象，
/// 则尽量查找距离点最近的坐标转换信息对象</param>
/// <param name="onlyIncludeEnabledItem">只对可用的对象进行处理</param>
/// <param name="useSourceRect">模式，True:匹配源矩形；False:匹配目标矩形。</param>
/// <returns>找到的坐标转换信息对象</returns>
public SimpleRectangleTransform GetItemByPoint(
float x,
float y,
bool useSourceRect,
bool compatibility,
bool onlyIncludeEnabledItem)
{
if (this.Count == 0)
{
// 列表为空，没法获得值
return(null);
}
foreach (SimpleRectangleTransform item in this.myItems)
{
if (onlyIncludeEnabledItem && item.Enable == false)
{
continue;
}
if (useSourceRect)
{
if (item.SourceRectF.Contains(x, y))
{
return(item);
}
}
else
{
if (item.DescRectF.Contains(x, y))
{
return(item);
}
}
}//foreach
if (compatibility)
{
// 寻找距离最近的目标矩形区域
float minLen = 0;
int index = 0;
for (int iCount = 0; iCount < this.myItems.Count; iCount++)
{
SimpleRectangleTransform item = myItems[iCount];
if (onlyIncludeEnabledItem && item.Enable == false)
{
continue;
}
RectangleF rect = useSourceRect ? item.SourceRectF : item.DescRectF;
if (rect.Contains(x, y))
{
return(myItems[iCount]);
}
float len = RectangleCommon.GetDistance(x, y, rect);
if (iCount == 0 || len < minLen)
{
minLen = len;
index = iCount;
}
}//for
return(myItems[index]);
}
else
{
return(null);
}
}
protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, DataGridViewElementStates dataGridViewElementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
base.Paint(graphics, clipBounds, cellBounds, rowIndex, dataGridViewElementState, @"", @"", errorText, cellStyle, advancedBorderStyle, paintParts);
this.m_chkboxRegion = RectangleCommon.GetSmallRectOfRectangle(cellBounds, CheckBoxRenderer.GetGlyphSize(graphics, CheckBoxState.UncheckedNormal), out m_absChkboxRegion);
this.RenderCheckBox(graphics);
}
