/// <summary>
/// Adds a PdfScriptObject to the page that draws text that autowraps at the given blockWidth.
/// </summary>
/// <param name="page">Page to draw to.</param>
/// <param name="x">X coordinate left-bottom of the first line of text.</param>
/// <param name="y">Y coordinate left-bottom of the first line of text.</param>
/// <param name="text">Text to draw.</param>
/// <param name="blockWidth">Width of the text block.</param>
/// <param name="options">Text options (font, style, etc.)</param>
/// <param name="leftRotationDegrees">Left rotation expressed in degrees.</param>
/// <param name="align">Alignment: -1=left (default), 0=center, +1=right.</param>
/// <remarks>
/// Currently, when alignment is non-left, the rotation arguments is ignored as both are not supported together.
/// </remarks>
public static PdfObjectRef DrawTextblock(this PdfPageWriter page, double x, double y, string text, double blockWidth, PdfTextOptions options, double leftRotationDegrees = 0.0, int align = -1)
{
if (align < 0)
{
return(page.DrawText(x, y, options.Font.SplitText(text, options.FontSize, blockWidth), options, leftRotationDegrees));
}
else
{
var lines = options.Font.SplitText(text.Replace('\r', ' '), options.FontSize, blockWidth).Split('\n');
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
obj.BeginText(x, y, options);
// Centered or right-alignment is not compatible with rotation:
//if (leftRotationDegrees != 0.0) obj.SetTextRotation(x, y, leftRotationDegrees);
var liney = y;
foreach (var line in lines)
{
if (!String.IsNullOrWhiteSpace(line))
{
var tline = line.Trim();
var textwidth = options.Font.GetStringWidth(tline, options.FontSize);
var linex = (align > 0) ? (x + blockWidth - textwidth) : (x + (blockWidth - textwidth) / 2);
obj.SetTextStartPosition(linex, liney);
obj.DrawText(tline);
}
liney -= options.FontSize;
}
obj.EndText();
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an image previously added to the DocumentWriter,
/// stretched to the given width and height.
/// </summary>
public static PdfObjectRef DrawImageRef(this PdfPageWriter page, double x, double y, PdfObjectRef imageRef, double width, double leftRotationDegrees = 0.0)
{
var obj = new PdfScriptObject();
obj.DrawImageByName(x, y, width, page.DocumentWriter.GetImageHeight(imageRef, width), page.DocumentWriter.GetNameOfXObject(imageRef), leftRotationDegrees);
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an XObject.
/// </summary>
public static PdfObjectRef DrawXObjectRef(this PdfPageWriter page, double x, double y, PdfObjectRef xObjRef, double width)
{
var obj = new PdfScriptObject();
obj.DrawExternalObject(page.DocumentWriter.GetNameOfXObject(xObjRef));
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a rounded rectangle given 2 coordinates.
/// </summary>
public static PdfObjectRef DrawRoundedRectangle2(this PdfPageWriter page, double x1, double y1, double x2, double y2, double radius, PdfGraphicsOptions options)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawRoundedRectangle2(x1, y1, x2, y2, radius);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a rounded rectangle given left-upper coordinates and width and height.
/// </summary>
public static PdfObjectRef DrawRoundedRectangle(this PdfPageWriter page, double x, double y, double width, double height, double radius, PdfGraphicsOptions options)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawRoundedRectangle(x, y, width, height, radius);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a rectangle given 2 coordinates.
/// </summary>
public static PdfObjectRef DrawRectangle2(this PdfPageWriter page, double x1, double y1, double x2, double y2, PdfGraphicsOptions options, double leftRotationDegrees = 0.0)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawRectangle2(x1, y1, x2, y2, leftRotationDegrees);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a rectangle given left-upper coordinates and width and height.
/// </summary>
public static PdfObjectRef DrawRectangle(this PdfPageWriter page, double x, double y, double width, double height, PdfGraphicsOptions options, double leftRotationDegrees = 0.0)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawRectangle(x, y, width, height, leftRotationDegrees);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a circle.
/// </summary>
public static PdfObjectRef DrawCircle(this PdfPageWriter page, double x, double y, double ray, PdfGraphicsOptions options)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawCircle(x, y, ray);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a oval given 2 coordinates.
/// </summary>
public static PdfObjectRef DrawOval2(this PdfPageWriter page, double x1, double y1, double x2, double y2, PdfGraphicsOptions options)
{
var obj = page.DocumentWriter.CreatePdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawOval2(x1, y1, x2, y2);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an oval given left-upper coordinates and width and height.
/// </summary>
public static PdfObjectRef DrawOval(this PdfPageWriter page, double x, double y, double width, double height, PdfGraphicsOptions options)
{
var obj = page.DocumentWriter.CreatePdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.DrawOval(x, y, width, height);
obj.EndPath(true, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws a line.
/// </summary>
public static PdfObjectRef DrawLine(this PdfPageWriter page, double x1, double y1, double x2, double y2, PdfGraphicsOptions options)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
options.Apply(obj);
obj.BeginPath(x1, y1);
obj.DrawLineTo(x2, y2);
obj.EndPath(false, true, true);
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws text.
/// </summary>
public static PdfObjectRef DrawText(this PdfPageWriter page, double x, double y, string text, PdfTextOptions options, double leftRotationDegrees = 0.0)
{
var obj = new PdfScriptObject();
obj.BeginGraphicsState();
obj.BeginText(x, y, options);
if (leftRotationDegrees != 0.0)
{
obj.SetTextRotation(x, y, leftRotationDegrees);
}
obj.DrawText(text);
obj.EndText();
obj.EndGraphicsState();
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an image,
/// stretched to the given width and height.
/// </summary>
public static PdfObjectRef DrawImage(this PdfPageWriter page, double x, double y, Image image, double width, double leftRotationDegrees = 0.0)
{
var imageRef = page.DocumentWriter.AddImage(image);
return(page.DrawImageRef(x, y, imageRef, width, leftRotationDegrees));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an image,
/// scaled to the given width and height.
/// </summary>
public static PdfObjectRef DrawImage(this PdfPageWriter page, double x, double y, Image image, double width, double height, PdfImagePlacement imagePlacement, PdfImageRotation rotation = PdfImageRotation.None)
{
var imageRef = page.DocumentWriter.AddImage(image);
return(page.DrawImageRef(x, y, imageRef, width, height, imagePlacement, rotation));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws an image previously added to the DocumentWriter,
/// scaled to the given width and height.
/// </summary>
public static PdfObjectRef DrawImageRef(this PdfPageWriter page, double x, double y, PdfObjectRef imageRef, double width, double height, PdfImagePlacement imagePlacement, PdfImageRotation rotation = PdfImageRotation.None)
{
var width2 = width;
var height2 = height;
var xdelta = 0.0;
var ydelta = 0.0;
// Fix for rotations:
if (rotation == PdfImageRotation.Left || rotation == PdfImageRotation.Right)
{
Swap(ref width2, ref height2);
}
imagePlacement = imagePlacement.Rotated(rotation);
if (imagePlacement != PdfImagePlacement.Stretch)
{
// Calculate box aspect ratio and image aspect ratio:
var boxar = height2 / width2;
var imgar = page.DocumentWriter.GetImageHeight(imageRef, 1.0);
if (imgar < boxar)
{
var imgh = height2 / boxar * imgar;
switch (imagePlacement)
{
case PdfImagePlacement.LeftOrTop:
case PdfImagePlacement.RightOrTop:
ydelta = (height2 - imgh);
break;
case PdfImagePlacement.Center:
ydelta = (height2 - imgh) / 2.0;
break;
}
height2 = imgh;
}
else
{
var imgw = width2 * boxar / imgar;
switch (imagePlacement)
{
case PdfImagePlacement.RightOrBottom:
xdelta = (width2 - imgw);
break;
case PdfImagePlacement.RightOrTop:
xdelta = (width2 - imgw);
break;
case PdfImagePlacement.Center:
xdelta = (width2 - imgw) / 2.0;
break;
}
width2 = imgw;
}
}
// Correct for rotations:
switch (rotation)
{
case PdfImageRotation.None: break;
case PdfImageRotation.Left:
Swap(ref xdelta, ref ydelta);
xdelta = width - xdelta;
break;
case PdfImageRotation.Right:
Swap(ref xdelta, ref ydelta);
ydelta = height - ydelta;
break;
case PdfImageRotation.UpsideDown:
xdelta = width - xdelta;
ydelta = height - ydelta;
break;
}
var obj = new PdfScriptObject();
obj.DrawImageByName(x + xdelta, y + ydelta, width2, height2, page.DocumentWriter.GetNameOfXObject(imageRef), ((int)rotation) * 90.0);
return(page.WriteObject(obj));
}
/// <summary>
/// Adds a PdfScriptObject to the page that draws text that autowraps at the given blockWidth.
/// </summary>
public static PdfObjectRef DrawTextblock(this PdfPageWriter page, double x, double y, string str, double blockWidth, PdfTextOptions options, double leftRotationDegrees = 0.0)
{
return(page.DrawText(x, y, options.Font.SplitText(str, options.FontSize, blockWidth), options, leftRotationDegrees));
}
