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Ruby/Panda

ext library for PDF Library Panda

Module/Class Hierarchy

Panda -+
         |
         +- Panda::PDF
         |
         +- Panda::Page

Module Panda

Constants

text drawing mode

Panda::NORMAL
Panda::OUTLINE
Panda::FILLEDOUTLINE
Panda::INVISIBLE
Panda::FILLEDCLIPPED
Panda::STROKEDCLIPPED
Panda::FILLEDSTROKEDCLIPPED
Panda::CLIPPED

line cap style

Panda::LINECAP_BUTT
Panda::LINECAP_ROUND
Panda::LINECAP_PROJECTEDSQUARE

line join style

Panda::LINEJOIN_MITER
Panda::LINEJOIN_ROUND
Panda::LINEJOIN_BEVEL

image type

Panda::TIFF
Panda::JPEG
Panda::PNG

Paper Size

Panda::A4
Panda::USLETTER

Class Panda::PDF

Class Methods

Panda::PDF.new(filename, mode)

generate PDF Class.

Methods

Document Attribute

Panda::PDF#setauthor(author)

Set the author string for the PDF document.

Panda::PDF#setcreator(creator)

Set the creator string for the PDF document.

Panda::PDF#settitle(title)

Set the title string for the PDF document.

Panda::PDF#setsubject(subject)

Set the subject string for the PDF document.

Panda::PDF#setkeywords(keywords)

Set the keywords string for the PDF document.

Image

Panda::PDF#imagebox(page, top, left, bottom, right, filename, type)

Insert an image into the PDF document at the specified location. This call is included for backward compatability withprevious releases of the API and it is recommened that new code call Panda::PDF#imageboxrot. It is unlikely that this call will be retired however. The image types accepted by this call are: Panda::TIFF, Panda::JPEG, Panda::PNG.

Panda::PDF#imageboxrot(page, top, left, bottom, right, angle, filename, type)

Insert an image into the PDF document at the specified location. The image types accepted by this call are: Panda::TIFF, Panda::JPEG, Panda::PNG.

Font

Panda::PDF#setfont(fontname, type, encoding)

Set the current font to be that specified.

Panda::PDF#setfontsize(size)

Set the size of the font to be used next (in points).

Panda::PDF#setfontmode(mode)

Set the current font mode. Valid modes are: Panda::NORMAL, Panda::OUTLINE, Panda::FILLEDOUTLINE, Panda::INVISIBLE, Panda::FILLEDCLIPPED, Panda::STROKEDCLIPPED, Panda::FILLEDSTROKEDCLIPPED, Panda::CLIPPED.

Panda::PDF#setcharacterspacing(amount)

Set the amount of additional space between characters in points.

Panda::PDF#setwordspacing(amount)

Set the amount of additional space between words in points.

Panda::PDF#sethorizontalscaling(scaling)

Set the horizontal scaling factor of the text in percent.

Panda::PDF#setleading(leading)

Set the amount of space between lines of text in points.

Text

Panda::PDF#textbox(page, top, left, bottom, right, text)

Display some text on the PDF page specified.

Panda::PDF#textboxrot(page, top, left, bottom, right, angle, text)

Display some text at a jaunty angle on the PDF page specified.

Template

Panda::PDF#newtemplate(pageSize)

Create a dummy page which they can make look nice and then use as a template all over the place. Templates are a bit different from pages in that the content stream is owned by the page as well.

Panda::PDF#applytemplate(page, template)

Use the template on this page.

Class Panda::Page

Class Methods

Panda::Page.new(PDF, pageSize)

Create a new blank page at the end of the PDF with the specified size. Use the standard pagesize strings that are defined by Panda for most things. These are Panda::A4, and Panda::USLETTER.

Methods

Graphics/Drawing

Panda::Page#setlinestart(x, y)

Set the starting point for the sequence of curves and lines that it to be drawn on the current page. This call is compulsory for almost all of the line drawing functions. It is not required for the Panda::Page#rectangle call.

Panda::Page#addlinesegment(x, y)

Add a point to the shape we are currently drawing with a straight line between the current cursor location and (x,y).

Panda::Page#addcubiccurvesegment(x, y, cx1, cy1, cx2, cy2)

Add a point to the shape we are currently drawing with a cubic curve between the current cursor location and (x,y). There are two control points used to generate the cubic curve. They are (cx1, cy1) and (cx2, cy2).

Panda::Page#addquadraticcurvesegmentone(x, y, cx1, cy1)

Add a curved segment to the line shape that we are drawing. The curved segment has a control point, namely (cx1, cy1). This call creates slightly different curves from Panda::Page#addquadraticcurvesegmenttwo

Panda::Page#addquadraticcurvesegmenttwo(x, y, cx1, cy1)

Add a curved segment to the line shape that we are drawing. The curved segment has a control point, namely (cx1, cy1). This call creates slightly different curves from Panda::Page#addquadraticcurvesegmentone

Panda::Page#rectangle(top, left, bottom, right)

Draw a rectangle on the PDF page. There is no need for the Panda::Page#setlinestart or Panda::Page#closeline calls.

Graphics/Path

Panda::Page#closeline()

Close the line shape we are drawing by returning to the starting point as set by Panda::Page#setlinestart

Panda::Page#endline()

Finalize the line shape we are drawing. Only one line shape may be drawn at any one time. There is no need for this call with the Panda::Page#rectangle call.

Panda::Page#strokeline()

Stroke the line shape we have just drawn. This method must be called for the line shape that we have drawn to actually display on the PDF page. This process is known as 'stroking', and hence the name of this function call.

Panda::Page#fillline()

Fill the shape we have just drawn with the previously defined fill.

Graphics/Attribute

Panda::Page#setlinewidth(width)

Set the width of the line that is being drawn. You can use Panda::Page#setlinecap, Panda::Page#setlinejoin and Panda::Page#setlinedash to change other characteristics of the line.

Panda::Page#setlinecap(cap)

Set the line cap for the lines we are drawing now. A line cap is used at the ends of lines that do not meet other lines. The different cap styles are: Panda::LINECAP_BUTT, Panda::LINECAP_ROUND, Panda::LINECAP_PROJECTEDSQUARE.

Panda::Page#setlinejoin(join)

Set the line join style. A line join is used where the ends of two lines meet. The valid line joins and are: Panda::LINEJOIN_MITER, Panda::LINEJOIN_ROUND, Panda::LINEJOIN_BEVEL.

Panda::Page#setlinedash(on, off, phase)

Define dashing pattern. This method allows the user to define a line dashing style, which is then applied to subsequent lines drawn on that page. The dashing style is defined as a on and off number, as well as a phase.

Graphics/Color

Panda::Page#setfillcolor(red, green, blue)

Set the color to fill a close shape with. This method sets the color to fill a close shape with when the shape is closed. It is expressed as a combinartion of red, green, and blue. The maximum number for each value is 255 (a number greater than 255 is reduced to 255).

Panda::Page#setlinecolor(red, green, blue)

Set the color of lines being drawn using a combination of red, green and blue.