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com.pietjonas.wmfwriter2d
Class WMFGraphics

java.lang.Object
  extended byjava.awt.Graphics
      extended bycom.pietjonas.wmfwriter2d.WMFGraphics
public class WMFGraphics
extends java.awt.Graphics

A class for writing into Windows Metafiles with standard java.awt.Graphics methods. Additional methods for using GDI specialities like different line and fill styles and rotated fonts are provided.
Usage is simple. Construct a WMFGraphics object with a WMF object wmf and the metafile extent: 

     WMFGraphics wmfg = new WMFGraphics(wmf, 400, 300);
Use the standard java.awt.Graphics methods to draw: 
     ...
     wmfg.drawLine(0, 0, 400, 300);
     wmfg.drawOval(100, 100, 200, 100);
     ...
You can even use GDI specialities: 
     ...
     wmfg.setPenStyle(WMF.PS_DOT);
     wmfg.setPenWidth(5);
     wmfg.drawLine(400, 0, 0, 300);
     wmfg.setBrushFillStyle(WMF.BS_HATCHED);
     wmfg.setBrushHatch(WMF.HS_CROSS);
     wmfg.fillOval(150, 100, 100, 100);
     wmfg.reset(); //set back to standard AWT settings
     ...
Finish your drawings with the delete of the GDI objects used by the WMFGraphics objects: 
     wmfg.deleteGDIObjects()
This is not really necessary because the WMF object deletes them automatically but clean style.

WMFGraphics is compatible with JDK 1.0, JDK 1.1 and JDK 1.2

Version:
2.0
Author:
Dr. Piet Jonas (piet@jonas.com)
See Also:
WMFGraphics2D, WMF

Constructor Summary
WMFGraphics(WMF wmf, int width, int height)
          Constructs a WMFGraphics object.
WMFGraphics(WMF wmf, int width, int height, java.awt.Color foreground, java.awt.Color background)
          Constructs a WMFGraphics object.
 
Method Summary
 void clearRect(int x, int y, int width, int height)
          See Graphics.
 void clipRect(int x, int y, int width, int height)
          See Graphics.
 void copyArea(int x, int y, int width, int height, int dx, int dy)
          Not supported.
 java.awt.Graphics create()
           
 void createWMFHandles()
          Creates and selects three GDI Objects: a Pen, a Brush and a Font with the current styles and fore- and background color.
 void deleteGDIObjects()
          Deletes all created GDI objects.
 void dispose()
          See Graphics.
 void drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
          See Graphics.
 boolean drawImage(java.awt.Image img, int x, int y, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
          See Graphics.
 boolean drawImage(java.awt.Image img, int x, int y, java.awt.image.ImageObserver observer)
          See Graphics.
 boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
          See Graphics.
 boolean drawImage(java.awt.Image img, int x, int y, int width, int height, java.awt.image.ImageObserver observer)
          See Graphics.
 boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.Color bgcolor, java.awt.image.ImageObserver observer)
          See Graphics.
 boolean drawImage(java.awt.Image img, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2, java.awt.image.ImageObserver observer)
          See Graphics.
 void drawLine(int x1, int y1, int x2, int y2)
          See Graphics.
 void drawOval(int x, int y, int width, int height)
          See Graphics.
 void drawPolygon(int[] xPoints, int[] yPoints, int nPoints)
          See Graphics.
 void drawPolyline(int[] xPoints, int[] yPoints, int nPoints)
          See Graphics.
 void drawRect(int x, int y, int width, int height)
          See Graphics.
 void drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
          See Graphics.
 void drawString(java.text.AttributedCharacterIterator text, int x, int y)
          Not supported.
 void drawString(java.lang.String str, int x, int y)
          See Graphics.
 void fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
          See Graphics.
 void fillOval(int x, int y, int width, int height)
          See Graphics.
 void fillPolygon(int[] xPoints, int[] yPoints, int nPoints)
          See Graphics.
 void fillRect(int x, int y, int width, int height)
          See Graphics.
 void fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
          See Graphics.
 void GDIPolyPolygon(java.awt.Polygon[] polys)
          Executes the GDI polypolygon.
 int getBrushFillStyle()
          Returns the current fill style of the brush, used to fill shapes.
 int getBrushHatch()
          Returns the current hatch style of the brush, used to fill shapes.
 java.awt.Image getBrushPattern()
          Returns the bitmap of the pattern brush, used to fill shapes.
 java.awt.Shape getClip()
          See Graphics.
 java.awt.Rectangle getClipBounds()
          See Graphics.
 java.awt.Rectangle getClipRect()
          See Graphics.
 java.awt.Color getColor()
          See Graphics.
 java.awt.Font getFont()
          See Graphics.
 int getFontEscapement()
          Returns the current escapement of the font, used to draw text.
 java.awt.FontMetrics getFontMetrics(java.awt.Font f)
          See Graphics.
 int getPenStyle()
          Returns the current style of the pen, used to draw lines.
 int getPenWidth()
          Returns the current width of the pen, used to draw lines.
 WMF getWMF()
          Returns the current WMF object.
 void reset()
          Resets WMFGraphics to its standard Java AWT behavior.
 void restoreState()
          Restores internal WMFGraphics settings in WMF which have been changed by copies (Graphics.create()) of this Graphics object.
 void setBrushFillStyle(int style)
          Sets the fill style of the brush, used to fill shapes.
 void setBrushHatch(int hatch)
          Sets the hatch style of the brush, used to fill shapes.
 void setBrushPattern(java.awt.Image pattern)
          Sets the bitmap of the pattern brush, used to fill shapes.
 void setClip(int x, int y, int width, int height)
          See Graphics
 void setClip(java.awt.Shape clipshape)
          See Graphics
 void setColor(java.awt.Color newcolor)
          See Graphics.
 void setFont(java.awt.Font newfont)
          See Graphics.
 void setFontEscapement(int escapement)
          Sets the escapement(rotation) of the font, used to draw text.
 int setGDIFillBrush()
          Creates and selects a new fill brush with the current fill style, hatch style, pattern and foreground color.
 int setGDIFont()
          Creates and selects a new font with the current Font and escapement.
 int setGDIHollowBrush()
          Creates and selects a new hollow brush with the current foreground color.
 int setGDIPen()
          Creates and selects a new pen with the current pen style, width and foreground color.
 void setPaintMode()
          Not supported.
 void setPenStyle(int style)
          Sets the style of the pen, used to draw lines.
 void setPenWidth(int width)
          Sets the width of the pen, used to draw lines.
 void setWMF(WMF newwmf, int width, int height)
          Sets a new WMF object.
 void setXORMode(java.awt.Color c1)
          Not supported.
 void translate(int x, int y)
          See Graphics.
 
Methods inherited from class java.awt.Graphics
create, draw3DRect, drawBytes, drawChars, drawPolygon, fill3DRect, fillPolygon, finalize, getClipBounds, getFontMetrics, hitClip, toString
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

WMFGraphics

public WMFGraphics(WMF wmf,
                   int width,
                   int height)
Constructs a WMFGraphics object. Expects a WMF object in which the Windows metafile commands are written and the extent the metafile will have.
It writes some GDI commands to the Windows Metafile to setup a standard environment (setWindowOrg, setWindowExt, setBKMode, ...) It creates and selects three GDI Objects: a Pen, a Brush and a Font with black fore- and white background color.

Parameters:
wmf - The WMF object to write the metafile into
width - The width of the metafile extent
height - The height of the metafile extent
See Also:
WMF

WMFGraphics

public WMFGraphics(WMF wmf,
                   int width,
                   int height,
                   java.awt.Color foreground,
                   java.awt.Color background)
Constructs a WMFGraphics object. Expects a WMF object in which the Windows metafile commands are written and the extent the metafile will have.
It writes some GDI commands to the Windows Metafile to setup a standard environment (setWindowOrg, setWindowExt, setBKMode, ...) It creates and selects three GDI Objects: a Pen, a Brush and a Font with the specified fore- and background color.

Parameters:
wmf - The WMF object to write the metafile into
width - The width of the metafile extent
height - The height of the metafile extent
foreground - The foreground color
background - The background color
See Also:
WMF
Method Detail

reset

public void reset()
Resets WMFGraphics to its standard Java AWT behavior. The pen style is set back to WMF.PS_Solid, its width is set to 1 (one pixel wide lines). The brush fill style is set to WMF.BS_Solid, the brush hatch style to WMF.HS_Horizontal. The font escapement is set to 0.

See Also:
WMF

restoreState

public void restoreState()
Restores internal WMFGraphics settings in WMF which have been changed by copies (Graphics.create()) of this Graphics object.

setPenStyle

public void setPenStyle(int style)
Sets the style of the pen, used to draw lines.

Parameters:
style - One of the WMF.PS_XXX constants.
See Also:
getPenStyle(), WMF

getPenStyle

public int getPenStyle()
Returns the current style of the pen, used to draw lines.

Returns:
The current style.
See Also:
setPenStyle(int)

setPenWidth

public void setPenWidth(int width)
Sets the width of the pen, used to draw lines.

Parameters:
width - The new pen width (0 means always 1 pixel wide).
See Also:
getPenWidth()

getPenWidth

public int getPenWidth()
Returns the current width of the pen, used to draw lines.

Returns:
The current width.
See Also:
setPenWidth(int)

setBrushFillStyle

public void setBrushFillStyle(int style)
Sets the fill style of the brush, used to fill shapes.

Parameters:
style - One of the WMF.BS_XXX constants.
See Also:
getBrushFillStyle(), WMF

getBrushFillStyle

public int getBrushFillStyle()
Returns the current fill style of the brush, used to fill shapes.

Returns:
The current fill style.
See Also:
setBrushFillStyle(int)

setBrushHatch

public void setBrushHatch(int hatch)
Sets the hatch style of the brush, used to fill shapes.

Parameters:
hatch - One of the WMF.HS_XXX constants.
See Also:
getBrushHatch(), WMF

getBrushHatch

public int getBrushHatch()
Returns the current hatch style of the brush, used to fill shapes.

Returns:
The current hatch style.
See Also:
setBrushHatch(int)

setBrushPattern

public void setBrushPattern(java.awt.Image pattern)
Sets the bitmap of the pattern brush, used to fill shapes. There is no support for transparency.

Parameters:
pattern - The bitmap of the pattern. Must have at least 8x8 pixels.
See Also:
getBrushPattern(), WMF

getBrushPattern

public java.awt.Image getBrushPattern()
Returns the bitmap of the pattern brush, used to fill shapes.

Returns:
The current bitmap.
See Also:
setBrushPattern(java.awt.Image)

setFontEscapement

public void setFontEscapement(int escapement)
Sets the escapement(rotation) of the font, used to draw text.

Parameters:
escapement - The new escapement (in tenth of degrees).
See Also:
getFontEscapement()

getFontEscapement

public int getFontEscapement()
Returns the current escapement of the font, used to draw text.

Returns:
The current escapement.
See Also:
setFontEscapement(int)

createWMFHandles

public void createWMFHandles()
Creates and selects three GDI Objects: a Pen, a Brush and a Font with the current styles and fore- and background color.

See Also:
WMF

setWMF

public void setWMF(WMF newwmf,
                   int width,
                   int height)
Sets a new WMF object. It creates and selects three GDI Objects: a Pen, a Brush and a Font with the current styles and fore- and background color. Sets the standard evironment in the metafile.

Parameters:
newwmf - The new WMF object.
See Also:
getWMF(), WMF

getWMF

public WMF getWMF()
Returns the current WMF object.

Returns:
The current WMF object.
See Also:
setWMF(com.pietjonas.wmfwriter2d.WMF, int, int), WMF

setGDIPen

public int setGDIPen()
Creates and selects a new pen with the current pen style, width and foreground color. Deletes the old pen.

Returns:
The GDI handle of the pen.
See Also:
WMF

setGDIHollowBrush

public int setGDIHollowBrush()
Creates and selects a new hollow brush with the current foreground color. Deletes the old brush.

Returns:
The GDI handle of the brush.
See Also:
WMF

setGDIFillBrush

public int setGDIFillBrush()
Creates and selects a new fill brush with the current fill style, hatch style, pattern and foreground color. Deletes the old brush.

Returns:
The GDI handle of the brush.
See Also:
WMF

setGDIFont

public int setGDIFont()
Creates and selects a new font with the current Font and escapement. Deletes the old font.

Returns:
The GDI handle of the font.
See Also:
WMF

deleteGDIObjects

public void deleteGDIObjects()
Deletes all created GDI objects. Should be the final method call before writing the metafile to an OutputStream.

GDIPolyPolygon

public void GDIPolyPolygon(java.awt.Polygon[] polys)
Executes the GDI polypolygon.

Parameters:
polys - Array of java.awt.Polygon
See Also:
WMF.polypolygon(java.awt.Polygon[])

clearRect

public void clearRect(int x,
                      int y,
                      int width,
                      int height)
See Graphics.

See Also:
Graphics

copyArea

public void copyArea(int x,
                     int y,
                     int width,
                     int height,
                     int dx,
                     int dy)
Not supported.

See Also:
Graphics

create

public java.awt.Graphics create()
See Also:
Graphics

dispose

public void dispose()
See Graphics.

See Also:
Graphics

drawArc

public void drawArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         int width,
                         int height,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int x,
                         int y,
                         int width,
                         int height,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         java.awt.Color bgcolor,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawImage

public boolean drawImage(java.awt.Image img,
                         int dx1,
                         int dy1,
                         int dx2,
                         int dy2,
                         int sx1,
                         int sy1,
                         int sx2,
                         int sy2,
                         java.awt.image.ImageObserver observer)
See Graphics.

See Also:
Graphics

drawLine

public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)
See Graphics.

See Also:
Graphics

drawOval

public void drawOval(int x,
                     int y,
                     int width,
                     int height)
See Graphics.

See Also:
Graphics

drawPolygon

public void drawPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
See Graphics.

See Also:
Graphics

drawPolyline

public void drawPolyline(int[] xPoints,
                         int[] yPoints,
                         int nPoints)
See Graphics.

See Also:
Graphics

drawRect

public void drawRect(int x,
                     int y,
                     int width,
                     int height)
See Graphics.

See Also:
Graphics

drawRoundRect

public void drawRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
See Graphics.

See Also:
Graphics

drawString

public void drawString(java.lang.String str,
                       int x,
                       int y)
See Graphics.

See Also:
Graphics

drawString

public void drawString(java.text.AttributedCharacterIterator text,
                       int x,
                       int y)
Not supported.

See Also:
Graphics

fillArc

public void fillArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)
See Graphics.

See Also:
Graphics

fillOval

public void fillOval(int x,
                     int y,
                     int width,
                     int height)
See Graphics.

See Also:
Graphics

fillPolygon

public void fillPolygon(int[] xPoints,
                        int[] yPoints,
                        int nPoints)
See Graphics.

See Also:
Graphics

fillRect

public void fillRect(int x,
                     int y,
                     int width,
                     int height)
See Graphics.

See Also:
Graphics

fillRoundRect

public void fillRoundRect(int x,
                          int y,
                          int width,
                          int height,
                          int arcWidth,
                          int arcHeight)
See Graphics.

See Also:
Graphics

clipRect

public void clipRect(int x,
                     int y,
                     int width,
                     int height)
See Graphics.

See Also:
Graphics

getClip

public java.awt.Shape getClip()
See Graphics.

See Also:
Graphics

getClipRect

public java.awt.Rectangle getClipRect()
See Graphics.

See Also:
Graphics

getClipBounds

public java.awt.Rectangle getClipBounds()
See Graphics.

See Also:
Graphics

setClip

public void setClip(int x,
                    int y,
                    int width,
                    int height)
See Graphics

See Also:
Graphics

setClip

public void setClip(java.awt.Shape clipshape)
See Graphics

See Also:
Graphics

getColor

public java.awt.Color getColor()
See Graphics.

See Also:
Graphics

getFont

public java.awt.Font getFont()
See Graphics.

See Also:
Graphics

getFontMetrics

public java.awt.FontMetrics getFontMetrics(java.awt.Font f)
See Graphics.

See Also:
Graphics

setColor

public void setColor(java.awt.Color newcolor)
See Graphics.

See Also:
Graphics

setFont

public void setFont(java.awt.Font newfont)
See Graphics.

See Also:
Graphics

setPaintMode

public void setPaintMode()
Not supported.

See Also:
Graphics

setXORMode

public void setXORMode(java.awt.Color c1)
Not supported.

See Also:
Graphics

translate

public void translate(int x,
                      int y)
See Graphics.

See Also:
Graphics
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