org.jfree.pixie.wmf.records

Class MfCmdCreateRegion


public class MfCmdCreateRegion
extends MfCmd

Currently i have no clue, how this is implemented.

From The WINE-Sources:

 	The layout of the record looks something like this:
 

rdParm meaning 0 Always 0? 1 Always 6? 2 Looks like a handle? - not constant 3 0 or 1 ?? 4 Total number of bytes 5 No. of separate bands = n [see below] 6 Largest number of x co-ords in a band 7-10 Bounding box x1 y1 x2 y2 11-... n bands

Regions are divided into bands that are uniform in the y-direction. Each band consists of pairs of on/off x-coords and is written as m y0 y1 x1 x2 x3 ... xm m into successive rdParm[]s.

This is probably just a dump of the internal RGNOBJ?

 static BOOL MF_Play_MetaCreateRegion( METARECORD *mr, HRGN hrgn )
 {
 WORD band, pair;
 WORD *start, *end;
 INT16 y0, y1;
 HRGN hrgn2 = CreateRectRgn( 0, 0, 0, 0 );
 

for(band = 0, start = &(mr->rdParm[11]); band <32mr->rdParm[5]; band++, start = end + 1) { if(*start / 2 != (*start + 1) / 2) { WARN("Delimiter not even.\n"); DeleteObject( hrgn2 ); return FALSE; }

end = start + *start + 3; if(end > (WORD *)mr + mr->rdSize) { WARN("End points outside record.\n"); DeleteObject( hrgn2 ); return FALSE; }

if(*start != *end) { WARN("Mismatched delimiters.\n"); DeleteObject( hrgn2 ); return FALSE; }

y0 = *(INT16 *)(start + 1); y1 = *(INT16 *)(start + 2); for(pair = 0; pair <32*start / 2; pair++) { SetRectRgn( hrgn2, *(INT16 *)(start + 3 + 2*pair), y0, (INT16 *)(start + 4 + 2*pair), y1 ); CombineRgn(hrgn, hrgn, hrgn2, RGN_OR); } } DeleteObject( hrgn2 ); return TRUE; }

Constructor Summary

MfCmdCreateRegion()
The default constructor, adjusts the scale to 1.

Method Summary

int
getFunction()
Reads the function identifier.
MfCmd
getInstance()
Creates a empty unintialized copy of this command implementation.
MfRecord
getRecord()
Writer function
Rectangle[]
getRects()
int
getRegionHeight()
int
getRegionWidth()
int
getRegionX()
int
getRegionY()
void
replay(WmfFile file)
Replays the command on the given WmfFile.
protected void
scaleXChanged()
A callback function to inform the object, that the x scale has changed and the internal coordinate values have to be adjusted.
protected void
scaleYChanged()
A callback function to inform the object, that the y scale has changed and the internal coordinate values have to be adjusted.
void
setRecord(MfRecord record)
Reads the command data from the given record and adjusts the internal parameters according to the data parsed.
void
setRects(Rectangle[] rects)
void
setRegionHeight(int regionHeight)
void
setRegionWidth(int regionWidth)
void
setRegionX(int regionX)
void
setRegionY(int regionY)
String
toString()

Methods inherited from class org.jfree.pixie.wmf.records.MfCmd

applyScaleX, applyScaleY, getFunction, getInstance, getRecord, getScaledHeight, getScaledWidth, getScaledX, getScaledY, replay, scaleRect, scaleXChanged, scaleYChanged, setRecord, setScale

Constructor Details

MfCmdCreateRegion

public MfCmdCreateRegion()
The default constructor, adjusts the scale to 1.

Method Details

getFunction

public int getFunction()
Reads the function identifier. Every record type is identified by a function number corresponding to one of the Windows GDI functions used.
Overrides:
getFunction in interface MfCmd
Returns:
the function identifier.

getInstance

public MfCmd getInstance()
Creates a empty unintialized copy of this command implementation.
Overrides:
getInstance in interface MfCmd
Returns:
a new instance of the command.

getRecord

public MfRecord getRecord()
Writer function
Overrides:
getRecord in interface MfCmd

getRects

public Rectangle[] getRects()

getRegionHeight

public int getRegionHeight()

getRegionWidth

public int getRegionWidth()

getRegionX

public int getRegionX()

getRegionY

public int getRegionY()

replay

public void replay(WmfFile file)
Replays the command on the given WmfFile.
Overrides:
replay in interface MfCmd
Parameters:

scaleXChanged

protected void scaleXChanged()
A callback function to inform the object, that the x scale has changed and the internal coordinate values have to be adjusted.
Overrides:
scaleXChanged in interface MfCmd

scaleYChanged

protected void scaleYChanged()
A callback function to inform the object, that the y scale has changed and the internal coordinate values have to be adjusted.
Overrides:
scaleYChanged in interface MfCmd

setRecord

public void setRecord(MfRecord record)
Reads the command data from the given record and adjusts the internal parameters according to the data parsed.

After the raw record was read from the datasource, the record is parsed by the concrete implementation.

Overrides:
setRecord in interface MfCmd
Parameters:
record - the raw data that makes up the record.

setRects

public void setRects(Rectangle[] rects)

setRegionHeight

public void setRegionHeight(int regionHeight)

setRegionWidth

public void setRegionWidth(int regionWidth)

setRegionX

public void setRegionX(int regionX)

setRegionY

public void setRegionY(int regionY)

toString

public String toString()