Package org.apache.fop.render.java2d

Class Java2DGraphicsState

  • public class Java2DGraphicsState
extends java.lang.Object
    Keeps information about the current state of the Graphics2D currentGraphics. It is also used as a stack to hold a graphics context.

    The graphics context is updated with the updateXXX() methods.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void dispose()
      Frees resources allocated by the current Graphics2D instance.
      java.awt.Color getColor()  
      java.awt.Font getFont()  
      java.awt.Graphics2D getGraph()  
      java.awt.BasicStroke getStroke()  
      java.awt.geom.AffineTransform getTransform()
      Get the current transform.
      java.lang.String toString()
      void transform​(java.awt.geom.AffineTransform tf)
      Composes an AffineTransform object with the Transform in this Graphics2D according to the rule last-specified-first-applied.
      boolean updateClip​(java.awt.Shape cl)
      Set the current clip.
      boolean updateColor​(java.awt.Color col)
      Set the current background color.
      boolean updateFont​(java.lang.String name, int size)
      Set the current font name.
      boolean updatePaint​(java.awt.Paint p)
      Set the current paint.
      boolean updateStroke​(float width, int style)
      Sets the current Stroke.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • Java2DGraphicsState

        public Java2DGraphicsState​(java.awt.Graphics2D graphics,
                           FontInfo fontInfo,
                           java.awt.geom.AffineTransform at)
        State for storing graphics state.
        Parameters:
        graphics - the graphics associated with the BufferedImage
        fontInfo - the FontInfo from the renderer
        at - the initial AffineTransform containing the scale transformation

      • Java2DGraphicsState

        public Java2DGraphicsState​(Java2DGraphicsState org)
        Copy constructor.
        Parameters:
        org - the instance to copy

    • Method Detail

      • getGraph

        public java.awt.Graphics2D getGraph()
        Returns:
        the currently valid state

      • dispose

        public void dispose()
        Frees resources allocated by the current Graphics2D instance.

      • updateColor

        public boolean updateColor​(java.awt.Color col)
        Set the current background color. Check if the background color will change and then set the new color.
        Parameters:
        col - the new color as a java.awt.Color
        Returns:
        true if the background color has changed

      • getColor

        public java.awt.Color getColor()
        Returns:
        the current java.awt.Color

      • updateFont

        public boolean updateFont​(java.lang.String name,
                          int size)
        Set the current font name. Check if the font name will change and then set the new name.
        Parameters:
        name - the new font name
        size - the font size
        Returns:
        true if the new Font changes the current Font

      • getFont

        public java.awt.Font getFont()
        Returns:
        the current java.awt.Font

      • updateStroke

        public boolean updateStroke​(float width,
                            int style)
        Sets the current Stroke. The line width should be set with updateLineWidth() before calling this method
        Parameters:
        width - the line width
        style - the constant for the style of the line as an int
        Returns:
        true if the new Stroke changes the current Stroke

      • getStroke

        public java.awt.BasicStroke getStroke()
        Returns:
        the currently active Stroke

      • updatePaint

        public boolean updatePaint​(java.awt.Paint p)
        Set the current paint. This checks if the paint will change and then sets the current paint.
        Parameters:
        p - the new paint
        Returns:
        true if the new paint changes the current paint

      • updateClip

        public boolean updateClip​(java.awt.Shape cl)
        Set the current clip. This either sets a new clip or sets the clip to the intersect of the old clip and the new clip.
        Parameters:
        cl - the new clip in the current state
        Returns:
        true if the clip shape needed to be updated

      • transform

        public void transform​(java.awt.geom.AffineTransform tf)
        Composes an AffineTransform object with the Transform in this Graphics2D according to the rule last-specified-first-applied.
        Parameters:
        tf - the transform to concatenate to the current level transform
        See Also:
        Graphics2D.transform(AffineTransform)

      • getTransform

        public java.awt.geom.AffineTransform getTransform()
        Get the current transform. This gets the combination of all transforms in the current state.
        Returns:
        the calculate combined transform for the current state

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object