org.apache.pdfbox.util
Class TextPosition

java.lang.Object
  extended by org.apache.pdfbox.util.TextPosition

public class TextPosition
extends Object

This represents a string and a position on the screen of those characters.

Version:
$Revision: 1.12 $
Author:
Ben Litchfield

Constructor Summary
protected TextPosition()
          Constructor.
  TextPosition(PDPage page, Matrix textPositionSt, Matrix textPositionEnd, float maxFontH, float[] individualWidths, float spaceWidth, String string, PDFont currentFont, float fontSizeValue, int fontSizeInPt, float ws)
          Constructor.
 
Method Summary
 boolean contains(TextPosition tp2)
          Determine if this TextPosition logically contains another (i.e. they overlap and should be rendered on top of each other).
 String getCharacter()
          Return the string of characters stored in this object.
 float getDir()
          Return the direction/orientation of the string in this object based on its text matrix.
 PDFont getFont()
          This will get the font for the text being drawn.
 float getFontSize()
          This will get the font size that this object is suppose to be drawn at.
 float getFontSizeInPt()
          This will get the font size in pt.
 float getHeight()
          This will get the maximum height of all characters in this string.
 float getHeightDir()
          This will get the maximum height of all characters in this string.
 float[] getIndividualWidths()
          Get the widths of each individual character.
 Matrix getTextPos()
          Return the Matrix textPos stored in this object.
 float getWidth()
          This will get the width of the string when page rotation adjusted coordinates are used.
 float getWidthDirAdj()
          This will get the width of the string when text direction adjusted coordinates are used.
 float getWidthOfSpace()
          This will get the width of a space character.
 float getWordSpacing()
          This will get the current word spacing.
 float getX()
          This will get the page rotation adjusted x position of the character.
 float getXDirAdj()
          This will get the text direction adjusted x position of the character.
 float getXScale()
           
 float getY()
          This will get the y position of the text, adjusted so that 0,0 is upper left and it is adjusted based on the page rotation.
 float getYDirAdj()
          This will get the y position of the text, adjusted so that 0,0 is upper left and it is adjusted based on the text direction.
 float getYScale()
           
 boolean isDiacritic()
           
 void mergeDiacritic(TextPosition diacritic, TextNormalize normalize)
          Merge a single character TextPosition into the current object.
 String toString()
          Show the string data for this text position.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

TextPosition

protected TextPosition()
Constructor.


TextPosition

public TextPosition(PDPage page,
                    Matrix textPositionSt,
                    Matrix textPositionEnd,
                    float maxFontH,
                    float[] individualWidths,
                    float spaceWidth,
                    String string,
                    PDFont currentFont,
                    float fontSizeValue,
                    int fontSizeInPt,
                    float ws)
Constructor.

Parameters:
page - Page that the text is located in
textPositionSt - TextMatrix for start of text (in display units)
textPositionEnd - TextMatrix for end of text (in display units)
maxFontH - Maximum height of text (in display units)
individualWidths - The width of each individual character. (in ? units)
spaceWidth - The width of the space character. (in display units)
string - The character to be displayed.
currentFont - The current for for this text position.
fontSizeValue - The new font size.
fontSizeInPt - The font size in pt units.
ws - The word spacing parameter (in display units)
Method Detail

getCharacter

public String getCharacter()
Return the string of characters stored in this object.

Returns:
The string on the screen.

getTextPos

public Matrix getTextPos()
Return the Matrix textPos stored in this object.

Returns:
The Matrix containing all infos of the starting textposition

getDir

public float getDir()
Return the direction/orientation of the string in this object based on its text matrix.

Returns:
The direction of the text (0, 90, 180, or 270)

getX

public float getX()
This will get the page rotation adjusted x position of the character. This is adjusted based on page rotation so that the upper left is 0,0.

Returns:
The x coordinate of the character.

getXDirAdj

public float getXDirAdj()
This will get the text direction adjusted x position of the character. This is adjusted based on text direction so that the first character in that direction is in the upper left at 0,0.

Returns:
The x coordinate of the text.

getY

public float getY()
This will get the y position of the text, adjusted so that 0,0 is upper left and it is adjusted based on the page rotation.

Returns:
The adjusted y coordinate of the character.

getYDirAdj

public float getYDirAdj()
This will get the y position of the text, adjusted so that 0,0 is upper left and it is adjusted based on the text direction.

Returns:
The adjusted y coordinate of the character.

getWidth

public float getWidth()
This will get the width of the string when page rotation adjusted coordinates are used.

Returns:
The width of the text in display units.

getWidthDirAdj

public float getWidthDirAdj()
This will get the width of the string when text direction adjusted coordinates are used.

Returns:
The width of the text in display units.

getHeight

public float getHeight()
This will get the maximum height of all characters in this string.

Returns:
The maximum height of all characters in this string.

getHeightDir

public float getHeightDir()
This will get the maximum height of all characters in this string.

Returns:
The maximum height of all characters in this string.

getFontSize

public float getFontSize()
This will get the font size that this object is suppose to be drawn at.

Returns:
The font size.

getFontSizeInPt

public float getFontSizeInPt()
This will get the font size in pt. To get this size we have to multiply the pdf-fontsize and the scaling from the textmatrix

Returns:
The font size in pt.

getFont

public PDFont getFont()
This will get the font for the text being drawn.

Returns:
The font size.

getWordSpacing

public float getWordSpacing()
This will get the current word spacing.

Returns:
The current word spacing.

getWidthOfSpace

public float getWidthOfSpace()
This will get the width of a space character. This is useful for some algorithms such as the text stripper, that need to know the width of a space character.

Returns:
The width of a space character.

getXScale

public float getXScale()
Returns:
Returns the xScale.

getYScale

public float getYScale()
Returns:
Returns the yScale.

getIndividualWidths

public float[] getIndividualWidths()
Get the widths of each individual character.

Returns:
An array that is the same length as the length of the string.

toString

public String toString()
Show the string data for this text position.

Overrides:
toString in class Object
Returns:
A human readable form of this object.

contains

public boolean contains(TextPosition tp2)
Determine if this TextPosition logically contains another (i.e. they overlap and should be rendered on top of each other).

Parameters:
tp2 - The other TestPosition to compare against
Returns:
True if tp2 is contained in the bounding box of this text.

mergeDiacritic

public void mergeDiacritic(TextPosition diacritic,
                           TextNormalize normalize)
Merge a single character TextPosition into the current object. This is to be used only for cases where we have a diacritic that overlaps an existing TextPosition. In a graphical display, we could overlay them, but for text extraction we need to merge them. Use the contains() method to test if two objects overlap.

Parameters:
diacritic - TextPosition to merge into the current TextPosition.
normalize - Instance of TextNormalize class to be used to normalize diacritic

isDiacritic

public boolean isDiacritic()
Returns:
True if the current character is a diacritic char.


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