public override void DirectDraw(Canvas ca, float x, float y, float dpiZoom)
{
SetBorder();
Graphics g = ca.Graphics;
if (null == g)
{
return;
}
if (null != Border)
{
Border.FillAreaBackground(ca.Graphics, x, y);
}
try
{
if (!string.IsNullOrEmpty(RealText))
{
byte[] imageArr = Convert.FromBase64String(RealText);
if (null != imageArr)
{
this.Image = System.Drawing.Image.FromStream(new MemoryStream(imageArr));
}
}
switch (Mode)
{
case PictureBoxSizeMode.Normal:
if (null != Image)
{
int w = this.Width > Image.Width ? Image.Width : this.Width;
int h = this.Height > Image.Height ? Image.Height : this.Height;
g.DrawImage(this.Image, x, y, new Rectangle(0, 0, w, h), GraphicsUnit.Pixel);
}
else if (null != ErrorImage)
{
int w = this.Width > Image.Width ? Image.Width : this.Width;
int h = this.Height > Image.Height ? Image.Height : this.Height;
g.DrawImage(this.ErrorImage, x, y, new Rectangle(0, 0, w, h), GraphicsUnit.Pixel);
}
break;
case PictureBoxSizeMode.CenterImage:
float imageLeft = 0, imageTop = 0;
float bckLeft = 0, bckTop = 0;
float imgDrawWidth = 0, imgDrawHeight = 0;
if (this.Width >= Image.Width)
{
//imageLeft = x;
imageLeft = 0;
bckLeft = x + ((this.Width - Image.Width) / 2);
imgDrawWidth = Image.Width;
}
else
{
imageLeft = (Image.Width - this.Width) / 2;
bckLeft = x;
imgDrawWidth = this.Width;
}
if (this.Height >= Image.Height)
{
//imageTop = y;
imageTop = 0;
bckTop = y + ((this.Height - Image.Height) / 2);
imgDrawHeight = Image.Height;
}
else
{
imageTop = (Image.Height - this.Height) / 2;
bckTop = y;
imgDrawHeight = this.Height;
}
if (null != Image)
{
g.DrawImage(Image, bckLeft, bckTop,
new Rectangle((int)imageLeft, (int)imageTop, (int)imgDrawWidth, (int)imgDrawHeight), GraphicsUnit.Pixel);
}
else if (null != ErrorImage)
{
g.DrawImage(ErrorImage, bckLeft, bckTop,
new Rectangle((int)imageLeft, (int)imageTop, (int)imgDrawWidth, (int)imgDrawHeight), GraphicsUnit.Pixel);
}
break;
case PictureBoxSizeMode.AutoSize:
this.Width = Image.Width;
this.Height = Image.Height;
if (null != Image)
{
g.DrawImage(Image, x, y, Image.Width, Image.Height);
}
else if (null != ErrorImage)
{
g.DrawImage(ErrorImage, x, y, Image.Width, Image.Height);
}
break;
case PictureBoxSizeMode.StretchImage:
if (null != Image)
{
g.DrawImage(Image, x, y, this.Width, this.Height);
}
else if (null != ErrorImage)
{
g.DrawImage(ErrorImage, x, y, this.Width, this.Height);
}
break;
case PictureBoxSizeMode.Zoom:
float imgWidthHeightScale = (float)Image.Width / Image.Height;
float imgWidth = 0, imgHeight = 0;
float drawLeft = 0, drawTop = 0;
float ctrlWidthHeightScale = (float)this.Width / this.Height;
if (ctrlWidthHeightScale > imgWidthHeightScale)
{
imgHeight = this.Height;
imgWidth = imgHeight * imgWidthHeightScale;
drawLeft = ((float)this.Width - imgWidth) / 2 + x;
drawTop = y;
}
else
{
imgWidth = this.Width;
imgHeight = imgWidth / imgWidthHeightScale;
drawLeft = x;
drawTop = ((float)this.Height - imgHeight) / 2 + y;
}
if (null != Image)
{
g.DrawImage(Image, drawLeft, drawTop, imgWidth, imgHeight);
}
else if (null != ErrorImage)
{
g.DrawImage(ErrorImage, drawLeft, drawTop, imgWidth, imgHeight);
}
break;
}
}
catch
{
if (null != ErrorImage)
{
g.DrawImage(ErrorImage, x, y, this.Width, this.Height);
}
}
if (null != Border)
{
Border.DirectDraw(ca, x, y, dpiZoom);
}
}
/// <summary>
/// 直接绘制
/// </summary>
/// <param name="ca"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void DirectDraw(Canvas ca, float x, float y, float dpiZoom)
{
SetBorder();
MoveX = x;
MoveY = y;
Graphics g = ca.Graphics;
SizeF textSize = SizeF.Empty;
if (null != RealText)
{
textSize = g.MeasureString(RealText, this.Font);
}
float left = x;
float top = y;
if (AutoSize)
{
this.Width = (int)textSize.Width;
this.Height = (int)textSize.Height;
}
// 上面的计算可能会改变控件的大小，所以将
// 边框的绘制放在放在这里
if (null != Border)
{
Border.FillAreaBackground(g, x, y);
Border.DirectDraw(ca, x, y, dpiZoom);
left += Border.BorderWidth;
top += Border.BorderWidth;
}
Brush foreBrush = new SolidBrush(this.ForeColor);
float tempWidth = this.Width - Border.BorderWidth;
float tempHeight = this.Height - Border.BorderWidth;
if (null != RealText && tempWidth != 0 && tempHeight != 0)
{
StringFormat sf = GetStringFormat();
try
{
//GraphicsContainer container = g.BeginContainer();
System.Drawing.Drawing2D.GraphicsState state = g.Save();
RectangleF rect = new RectangleF(left, top, tempWidth, tempHeight);
Matrix mx = new Matrix();
if (RotateDegree != 0)
{
mx.RotateAt(RotateDegree, new PointF(rect.X + rect.Width / 2, rect.Y + rect.Height / 2));
//mx.Translate(textSize.Height, textSize.Width / 2);
mx.Multiply(g.Transform, MatrixOrder.Append);
g.Transform = mx;
}
g.DrawString(RealText, this.Font, foreBrush, rect /*new RectangleF(0, 0, tempWidth, tempHeight)*/, sf);
mx.Reset();
mx.Dispose();
g.Restore(state);
//g.EndContainer(container);
}
finally
{
sf.Dispose();
}
}
foreBrush.Dispose();
}
/// <summary>
/// 直接绘制
/// </summary>
/// <param name="ca"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void DirectDraw(Canvas ca, float x, float y, float dpiZoom)
{
SetBorder();
MoveX = x;
MoveY = y;
if (null == ca || null == ca.Graphics)
{
return;
}
if (string.IsNullOrEmpty(RealText) && !string.IsNullOrEmpty(Text))
{
RealText = Text;
}
else if (string.IsNullOrEmpty(RealText))
{
return;
}
try
{
if (null == _QRCodeControl)
{
_QRCodeControl = new QRCodeControl();
_QRCodeControl.IncludeLabel = IncludeLabel;
_QRCodeControl.backColor = BackColor;
_QRCodeControl.foreColor = ForeColor;
_QRCodeControl.CorrectionLevel = CorrectionLevel;
_QRCodeControl.EncodedMode = EncodedMode;
_QRCodeControl.QRCodeScale = _QRCodeScale;
_QRCodeControl.Version = Version;
_QRCodeControl.RawData = RealText;
}
Image img = _QRCodeControl.PictureBoxImage;
if (null != img)
{
ca.Graphics.DrawImage(img, x, y, this.Width, this.Height);
img.Dispose();
}
}
catch (Exception ex)
{
string message = ex.Message;
if (!string.IsNullOrEmpty(message))
{
SizeF size = ca.Graphics.MeasureString(ErrorText, this.Font);
float left = ((float)this.Width - size.Width) / 2;
if (left < 0)
{
left = x;
}
else
{
left += x;
}
float top = ((float)this.Height - size.Height) / 2;
if (top < 0)
{
top = y;
}
else
{
top += y;
}
float width = this.Width > size.Width ? size.Width : this.Width;
float height = this.Height > size.Height ? size.Height : this.Height;
ca.Graphics.DrawString(ErrorText, this.Font, Brushes.Red, new RectangleF(left, top, width, height));
}
}
finally
{
if (null != _QRCodeControl)
{
_QRCodeControl.Dispose();
_QRCodeControl = null;
}
}
if (null != Border)
{
Border.DirectDraw(ca, x, y, dpiZoom);
}
}
/// <summary>
/// 直接绘制
/// </summary>
/// <param name="ca"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void DirectDraw(Canvas ca, float x, float y, float dpiZoom)
{
SetBorder();
MoveX = x;
MoveY = y;
if (null == ca || null == ca.Graphics)
{
return;
}
if (string.IsNullOrEmpty(RealText) && !string.IsNullOrEmpty(Text))
{
RealText = Text;
}
else if (string.IsNullOrEmpty(RealText))
{
return;
}
Barcode bc = null;
try
{
bc = new Barcode();
bc.Alignment = this.BarCodeAlign;
bc.IncludeLabel = IncludeLabel;
bc.LabelFont = LabelFont;
Image img = bc.Encode(BarCodeType, RealText, this.ForeColor, this.BackColor, this.Width, this.Height);
if (null != img)
{
ca.Graphics.DrawImage(img, x, y, this.Width, this.Height);
img.Dispose();
}
}
catch (Exception ex)
{
string message = ex.Message;
if (!string.IsNullOrEmpty(message))
{
if (!message.StartsWith("EENCODE-1:") && !message.StartsWith("EENCODE-2:"))
{
SizeF size = ca.Graphics.MeasureString(ErrorText, this.Font);
float left = ((float)this.Width - size.Width) / 2;
if (left < 0)
{
left = x;
}
else
{
left += x;
}
float top = ((float)this.Height - size.Height) / 2;
if (top < 0)
{
top = y;
}
else
{
top += y;
}
float width = this.Width > size.Width ? size.Width : this.Width;
float height = this.Height > size.Height ? size.Height : this.Height;
ca.Graphics.DrawString(ErrorText, this.Font, Brushes.Red, new RectangleF(left, top, width, height));
}
}
}
finally
{
if (null != bc)
{
bc.Dispose();
}
}
if (null != Border)
{
Border.DirectDraw(ca, x, y, dpiZoom);
}
}
public override void DirectDraw(Canvas ca, float x, float y, float dpiZoom)
{
if (Transparent && this.Site == null)
{
return;
}
SetBorder();
MoveX = x;
MoveY = y;
Graphics g = ca.Graphics;
float left = x;
float top = y;
// 上面的计算可能会改变控件的大小，所以将
// 边框的绘制放在放在这里
Border.FillAreaBackground(g, x, y);
Border.DirectDraw(ca, x, y, dpiZoom);
if (null != RealText && IsRedrawText)
{
SizeF textSize = g.MeasureString(RealText, this.Font);
//非自动大小的情况下的文本位置
#region 计算文本的 XY坐标
switch (TextAlign)
{
case ContentAlignment.BottomCenter:
left += (this.Width - 2 * Border.BorderWidth - textSize.Width) / 2 < 0 ? Border.BorderWidth : (this.Width - 2 * Border.BorderWidth - textSize.Width) / 2 + Border.BorderWidth;
top += this.Height - textSize.Height - Border.BorderWidth < 0 ? Border.BorderWidth : this.Height - textSize.Height - Border.BorderWidth;
break;
case ContentAlignment.BottomLeft:
top += this.Height - textSize.Height - 2 * Border.BorderWidth < 0 ? Border.BorderWidth : this.Height - textSize.Height - Border.BorderWidth;
left += Border.BorderWidth;
break;
case ContentAlignment.BottomRight:
left += this.Width - textSize.Width - 2 * Border.BorderWidth < Border.BorderWidth ? Border.BorderWidth : this.Width - textSize.Width - Border.BorderWidth;
top += this.Height - textSize.Height - Border.BorderWidth < 0 ? Border.BorderWidth : this.Height - textSize.Height - Border.BorderWidth;;
break;
case ContentAlignment.MiddleCenter:
left += (this.Width - 2 * Border.BorderWidth - textSize.Width) / 2 < 0 ? Border.BorderWidth : (this.Width - 2 * Border.BorderWidth - textSize.Width) / 2 + Border.BorderWidth;
top += (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 < 0 ? Border.BorderWidth : (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 + Border.BorderWidth;
break;
case ContentAlignment.MiddleLeft:
top += (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 < 0 ? Border.BorderWidth : (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 + Border.BorderWidth;
left += Border.BorderWidth;;
break;
case ContentAlignment.MiddleRight:
left += this.Width - textSize.Width - Border.BorderWidth < Border.BorderWidth ? Border.BorderWidth : this.Width - textSize.Width - Border.BorderWidth;
top += (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 < 0 ? Border.BorderWidth : (this.Height - 2 * Border.BorderWidth - textSize.Height) / 2 + Border.BorderWidth;
break;
case ContentAlignment.TopCenter:
left += (this.Width - textSize.Width) / 2 < 0 ? Border.BorderWidth : (this.Width - textSize.Width) / 2 + Border.BorderWidth;
top += Border.BorderWidth;
break;
case ContentAlignment.TopLeft:
top += Border.BorderWidth;
left += Border.BorderWidth;
break;
case ContentAlignment.TopRight:
left += this.Width - textSize.Width - Border.BorderWidth < Border.BorderWidth ? Border.BorderWidth : this.Width - textSize.Width - Border.BorderWidth;
top += Border.BorderWidth;
break;
}
#endregion
Brush foreBrush = new SolidBrush(this.ForeColor);
try
{
float tempWidth = this.Width - left + MoveX - Border.BorderWidth - textSize.Width <= 0 ? this.Width - left + MoveX - Border.BorderWidth : textSize.Width;
float tempHeight = this.Height - top + MoveY - Border.BorderWidth - textSize.Height <= 0 ? this.Height - top + MoveY - Border.BorderWidth : textSize.Height;
if (tempWidth != 0 && tempHeight != 0)
{
g.DrawString(RealText, this.Font, foreBrush, new RectangleF(left, top, tempWidth, tempHeight));
}
}
finally
{
foreBrush.Dispose();
}
}
base.DirectDraw(ca, x, y, dpiZoom);
}