// 画单元格，包括背景，文字 和 左上线条
// parameter:
// g Graphics对象
// nCol 列号
// 0 字段说明;
// 1 字段名;
// 2 字段指示符
// 3 字段内容
// rect 区域 如果为null，则自动根据列号计算 但目前不支持
// return:
// void
internal void DrawCell(Graphics g,
int nCol,
Rectangle rect)
{
Debug.Assert(g != null, "g参数不能为null");
string strText = "";
int nWidth = 0;
bool bEnabled = this.container.MarcEditor.Enabled;
bool bReadOnly = this.container.MarcEditor.ReadOnly;
Brush brush = null;
try
{
if (nCol == 0)
{
// NameCaption
Color backColor;
if (bEnabled == false || bReadOnly == true)
{
backColor = SystemColors.Control;
}
else
{
backColor = this.container.MarcEditor.defaultNameCaptionBackColor;
}
// 如果本行为当前活动行，则名称部分高亮显示
if (this.Selected == true)//this.container.marcEditor.CurField == this)
{
if (backColor.GetBrightness() < 0.5f)
{
backColor = ControlPaint.Light(backColor);
}
else
{
backColor = ControlPaint.Dark(backColor);
}
}
strText = this.m_strNameCaption;
nWidth = this.container.record.NameCaptionPureWidth;
brush = new SolidBrush(backColor);
}
else if (nCol == 1)
{
// Name
Color backColor;
if (bEnabled == false || bReadOnly == true)
{
backColor = SystemColors.Control;
}
else
{
backColor = this.container.MarcEditor.defaultNameBackColor;
}
if (this.Name == "###")
{
backColor = this.container.record.marcEditor.defaultNameCaptionBackColor;
}
// 如果本行为当前活动行，则名称部分高亮显示
if (this.Selected == true)//this.container.marcEditor.FocusedField == this)
{
backColor = ControlPaint.Light(backColor);
}
strText = this.m_strName;
nWidth = this.container.record.NamePureWidth;
brush = new SolidBrush(backColor);
}
else if (nCol == 2)
{
// Indicator
Color backColor;
if (bEnabled == false || bReadOnly == true)
{
backColor = SystemColors.Control;
}
else
{
backColor = this.container.MarcEditor.defaultIndicatorBackColor;
}
if (Record.IsControlFieldName(this.Name) == true)
{
backColor = this.container.MarcEditor.defaultIndicatorBackColorDisabled;
}
// 如果本行为当前活动行，则名称部分高亮显示
if (this.Selected == true)//this.container.marcEditor.FocusedField == this)
{
backColor = ControlPaint.Light(backColor);
}
strText = this.m_strIndicator;
nWidth = this.container.record.IndicatorPureWidth;
brush = new SolidBrush(backColor);
}
else if (nCol == 3)
{
// m_strValue
strText = this.m_strValue;
nWidth = this.container.record.ValuePureWidth + 0; // 1为微调,正好!
if (bEnabled == false || bReadOnly == true)
{
brush = new SolidBrush(SystemColors.Control);
}
else
{
brush = new SolidBrush(this.container.MarcEditor.defaultContentBackColor);
}
}
else
{
Debug.Assert(false, "nCol的值'" + Convert.ToString(nCol) + "'不合法");
}
// new Point(-this.container.MarcEditor.DocumentOrgX + 0, -this.container.MarcEditor.DocumentOrgY + this.container.MarcEditor.DocumentHeight),
//new Point(-this.container.MarcEditor.DocumentOrgX + this.container.MarcEditor.DocumentWidth, - this.container.MarcEditor.DocumentOrgY + 0),
using (LinearGradientBrush linGrBrush = new LinearGradientBrush(
new Point(0, 0),
new Point(this.container.MarcEditor.DocumentWidth, 0),
Color.FromArgb(255, 240, 240, 240), // 240, 240, 240
Color.FromArgb(255, 255, 255, 255) // Opaque red
)) // Opaque blue
{
linGrBrush.GammaCorrection = true;
// --------画背景----------------------------
if ((nCol == 1 || nCol == 2 || nCol == 3) &&
(bEnabled == true && bReadOnly == false))
{
g.FillRectangle(linGrBrush, rect);
}
else
{
g.FillRectangle(brush, rect);
}
}
// --------画线条----------------------------
// 只画上，左
// 画上方的线条
Field.DrawLines(g,
rect,
this.container.record.GridHorzLineHeight,
0,
0,
0,
this.container.record.marcEditor.defaultHorzGridColor);
// 画左方的线条
int nGridWidth = 0;
if (nCol == 1)
{
nGridWidth = this.container.record.GridVertLineWidthForSplit;
}
else
{
nGridWidth = this.container.record.GridVertLineWidth;
}
// indicator左边的竖线短一点
if (nCol == 2)
{
rect.Y += 2;
rect.Height = this.container.record.NamePureHeight;
}
Field.DrawLines(g,
rect,
0,
0,
nGridWidth,//this.container.GridVertLineWidth,
0,
this.container.MarcEditor.defaultVertGridColor);
if (nCol == 2) // 还原
{
rect.Y -= 2;
}
// --------画文字----------------------------
if (nWidth > 0)
{
Rectangle textRect = new Rectangle(
rect.X + nGridWidth /*this.container.GridVertLineWidth*/ + this.container.record.CellLeftBlank,
rect.Y + this.container.record.GridHorzLineHeight + this.container.record.CellTopBlank,
nWidth,
this.PureHeight);
// 这里的 font 是引用，因此不需要释放
Font font = null;
if (nCol == 0)
{
font = this.container.MarcEditor.CaptionFont;
//Debug.Assert(font != null, "");
}
else if (nCol == 1 || nCol == 2)
{
font = this.container.MarcEditor.FixedSizeFont;
//Debug.Assert(font != null, "");
}
else
{
font = this.container.MarcEditor.Font;
// Debug.Assert(font != null, "");
}
if (font == null)
{
font = this.container.MarcEditor.Font;
}
Debug.Assert(font != null, "");
// System.Drawing.Text.TextRenderingHint oldrenderhint = g.TextRenderingHint;
// g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
if (nCol == 0) // 字段名提示
{
/*
* StringFormat format = StringFormat.GenericDefault; //new StringFormat();
* g.DrawString(strText,
* font,
* brush, // System.Drawing.Brushes.Blue,
* textRect,
* format);
*/
Color textcolor = this.container.MarcEditor.defaultNameCaptionTextColor;
if (this.Selected == true)
{
textcolor = ReverseColor(textcolor);
}
TextRenderer.DrawText(
g,
strText,
font,
textRect,
textcolor,
TextFormatFlags.EndEllipsis);
}
else if (nCol == 1) // 字段名
{
TextRenderer.DrawText(
g,
strText,
font,
textRect,
this.container.MarcEditor.defaultNameTextColor,
MarcEditor.editflags); // TextFormatFlags.TextBoxControl | TextFormatFlags.WordBreak | TextFormatFlags.NoPadding);
}
else if (nCol == 2) // 指示符
{
TextRenderer.DrawText(
g,
strText,
font,
textRect,
this.container.MarcEditor.defaultIndicatorTextColor,
MarcEditor.editflags); // TextFormatFlags.TextBoxControl | TextFormatFlags.WordBreak | TextFormatFlags.NoPadding);
}
else
{ // 内容
#if BIDI_SUPPORT
strText = strText.Replace(new string(Record.KERNEL_SUBFLD, 1), "\x200e" + new string(Record.KERNEL_SUBFLD, 1));
#endif
TextRenderer.DrawText(
g,
strText,
font,
textRect,
this.container.MarcEditor.m_contentTextColor,
MarcEditor.editflags); // TextFormatFlags.TextBoxControl | TextFormatFlags.WordBreak | TextFormatFlags.NoPadding);
}
}
}
finally
{
if (brush != null)
{
brush.Dispose();
}
}
#if NO
// 2015/10/19
if (linGrBrush != null)
{
linGrBrush.Dispose();
}
#endif
}
// 绘制
internal void Paint(PaintEventArgs pe,
int nBaseX,
int nBaseY)
{
if (this.Fields.Count == 0)
{
return;
}
int x = nBaseX;
int y = nBaseY;
// 循环行
for (int i = 0; i < this.Fields.Count; i++)
{
Field field = this.Fields[i];
// 优化
if (y > pe.ClipRectangle.Y + pe.ClipRectangle.Height)
{
break;
}
// 调Field的Paint函数
field.Paint(pe, x, y);
y += field.TotalHeight;
}
// 绘共同的右下的线////////////
Rectangle rect = new Rectangle(nBaseX,
nBaseY,
this.Width,
this.Height);
// 调整
if (this.GridVertLineWidth == 1 &&
this.GridHorzLineHeight == 1)
{
rect.Height = rect.Height - 1;
}
// 下
Field.DrawLines(pe.Graphics,
rect,
0,
this.GridHorzLineHeight,
0,
0,
this.marcEditor.defaultHorzGridColor);
// 调整
if (this.GridVertLineWidth == 1 &&
this.GridHorzLineHeight == 1)
{
rect.Height = rect.Height + 1;
}
if (this.GridVertLineWidth == 1 ||
this.GridHorzLineHeight == 1)
{
rect.Width = rect.Width - 1;
}
// 右
Field.DrawLines(pe.Graphics,
rect,
0,
0,
0,
this.GridVertLineWidth,
this.marcEditor.defaultVertGridColor);
}