Package org.apache.poi.hwmf.draw

Class HwmfGraphics

java.lang.Object
org.apache.poi.hwmf.draw.HwmfGraphics
All Implemented Interfaces:
HwmfCharsetAware
public class HwmfGraphics extends Object implements HwmfCharsetAware

  • Constructor Details

    • HwmfGraphics

      public HwmfGraphics(Graphics2D graphicsCtx, Rectangle2D bbox)
      Initialize a graphics context for wmf rendering
      Parameters:
      graphicsCtx - the graphics context to delegate drawing calls
      bbox - the bounding box of the wmf (taken from the placeable header)

  • Method Details

    • getProperties

      public HwmfDrawProperties getProperties()

    • draw

      public void draw(Shape shape)

    • fill

      public void fill(Shape shape)

    • getPatternFromLong

      public static BufferedImage getPatternFromLong(long patternLng, Color background, Color foreground, boolean hasAlpha)

    • addObjectTableEntry

      public void addObjectTableEntry(HwmfObjectTableEntry entry)
      Adds an record of type HwmfObjectTableEntry to the object table. Every object is assigned the lowest available index-that is, the smallest numerical value-in the WMF Object Table. This binding happens at object creation, not when the object is used. Moreover, each object table index uniquely refers to an object. Indexes in the WMF Object Table always start at 0.
      Parameters:
      entry - the object table entry

    • applyObjectTableEntry

      public void applyObjectTableEntry(int index)
      Applies the object table entry
      Parameters:
      index - the index of the object table entry (0-based)
      Throws:
      IndexOutOfBoundsException - if the index is out of range
      NoSuchElementException - if the entry was deleted before

    • unsetObjectTableEntry

      public void unsetObjectTableEntry(int index)
      Unsets (deletes) the object table entry for further usage When a META_DELETEOBJECT record (section 2.3.4.7) is received that specifies this object's particular index, the object's resources are released, the binding to its WMF Object Table index is ended, and the index value is returned to the pool of available indexes. The index will be reused, if needed, by a subsequent object created by another Object Record Type record.
      Parameters:
      index - the index (0-based)
      Throws:
      IndexOutOfBoundsException - if the index is out of range

    • saveProperties

      public void saveProperties()
      Saves the current properties to the stack

    • restoreProperties

      public void restoreProperties(int index)
      Restores the properties from the stack
      Parameters:
      index - if the index is positive, the n-th element from the start is activated. If the index is negative, the n-th previous element relative to the current properties element is activated.

    • updateWindowMapMode

      public void updateWindowMapMode()
      After setting various window and viewport related properties, the underlying graphics context needs to be adapted. This methods gathers and sets the corresponding graphics transformations.

    • drawString

      public void drawString(byte[] text, int length, Point2D reference)

    • drawString

      public void drawString(byte[] text, int length, Point2D reference, Dimension2D scale, Rectangle2D clip, HwmfText.WmfExtTextOutOptions opts, List<Integer> dx, boolean isUnicode)

    • setCharsetProvider

      public void setCharsetProvider(Supplier<Charset> provider)
      Specified by:
      setCharsetProvider in interface HwmfCharsetAware

    • drawImage

      public void drawImage(BufferedImage img, Rectangle2D srcBounds, Rectangle2D dstBounds)

    • drawImage

      public void drawImage(ImageRenderer img, Rectangle2D srcBounds, Rectangle2D dstBounds)

    • getInitTransform

      public AffineTransform getInitTransform()
      Returns:
      the initial AffineTransform, when this graphics context was created

    • getTransform

      public AffineTransform getTransform()
      Returns:
      the current AffineTransform

    • setTransform

      public void setTransform(AffineTransform tx)
      Set the current AffineTransform
      Parameters:
      tx - the current AffineTransform

    • setClip

      public void setClip(Shape clip, HwmfRegionMode regionMode, boolean useInitialAT)
      Set the new clipping region
      Parameters:
      clip - the next clipping region to be processed
      regionMode - the mode and operation of how to apply the next clipping region
      useInitialAT - if true, the clipping is applied on the initial (world) coordinate system

    • getImageRenderer

      public ImageRenderer getImageRenderer(String contentType)