y.module.io
Class IOHandlerModule

java.lang.Object
  |
  +--y.module.YModule
        |
        +--y.module.io.IOHandlerModule

Direct Known Subclasses:

GIFOutput, GMLInput, GMLOutput, JPGOutput, TGFInput, TGFOutput, YGFInput, YGFOutput

public abstract class IOHandlerModule

extends YModule

Base class of all modules that provide file based I/O services for diagrams.

Field Summary

static byte	INPUT_MODE I/O mode specifier constant.
protected static String	OPTION_CLIP_GRAPH
protected static String	OPTION_CLIP_TYPE
protected static String	OPTION_CLIP_VIEW
protected static String	OPTION_CUSTOM_HEIGHT
protected static String	OPTION_CUSTOM_WIDTH
protected static String	OPTION_GENERATE_HTML_TABLE
protected static String	OPTION_MARGIN
protected static String	OPTION_SCALING_FACTOR
protected static String	OPTION_SIZE_TYPE
protected static String	OPTION_SIZE_USE_CUSTOM_HEIGHT
protected static String	OPTION_SIZE_USE_CUSTOM_WIDTH
protected static String	OPTION_SIZE_USE_ORIGINAL
protected static String	OPTION_TILE_COLUMN_COUNT
protected static String	OPTION_TILE_ROW_COUNT
protected static String	OPTION_TILING_ACTIVE
static byte	OUTPUT_MODE I/O mode specifier constant.
protected static String	TAB_TILING
protected static String	TAB_VIEWPORT
protected ViewPortConfigurator	vpc

Fields inherited from class y.module.YModule

FAILED, PRECONDITION_VIOLATED, SUCCESS

Constructor Summary

protected

IOHandlerModule(String name, String author, String description)

Method Summary

protected void	addTilingOptions(OptionHandler options) Adds image-tiling specific options to the given option handler instance.
protected void	addViewPortOptions(OptionHandler options) Adds viewport specific options to the given option handler instance.
protected void	configureViewPort(Graph2DView viewPort, Graph2DView originalView) Configures the given viewPort.
protected abstract IOHandler	createIOHandler() Creates an IOHandler instance responsible for the actual I/O to be performed.
IOHandler	getIOHandler() Returns the IOHandler used by this module.
byte	getIOMode() Returns the I/O mode the module is working in.
URL	getURL() Returns the location of the file to which the module either will export or import the diagram.
protected void	mainrun() Read or writes a diagram in a specific format to a file.
protected void	setIOHandler(IOHandler ioh) Sets a specific IOHandler to be used by this module.
protected void	setIOMode(byte ioMode) Sets the I/O mode the module is working in.
void	setURL(URL url) Sets the location of the file to which the module either will export or import the diagram.

Methods inherited from class y.module.YModule

createOptionHandler, dispose, fitGraph2DView, getAuthor, getDescription, getExitStatus, getGraph2D, getGraph2DView, getModuleName, getOptionHandler, getTimer, getView, init, isAbortable, run, setExitStatus, setGraph2D, setModuleName, setOptionHandler, start, startAsThread

Methods inherited from class java.lang.Object

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

Field Detail

vpc

protected ViewPortConfigurator vpc

OUTPUT_MODE

public static final byte OUTPUT_MODE

I/O mode specifier constant. Specifies that the module is responsible for writing a diagram to a file.

See Also:

Constant Field Values

INPUT_MODE

public static final byte INPUT_MODE

I/O mode specifier constant. Specifies that the module is responsible for reading a diagram from a file.

See Also:

Constant Field Values

TAB_VIEWPORT

protected static final String TAB_VIEWPORT

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Constant Field Values

OPTION_SIZE_TYPE

protected static final String OPTION_SIZE_TYPE

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Constant Field Values

OPTION_SIZE_USE_ORIGINAL

protected static final String OPTION_SIZE_USE_ORIGINAL

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Constant Field Values

OPTION_SIZE_USE_CUSTOM_WIDTH

protected static final String OPTION_SIZE_USE_CUSTOM_WIDTH

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Constant Field Values

OPTION_SIZE_USE_CUSTOM_HEIGHT

protected static final String OPTION_SIZE_USE_CUSTOM_HEIGHT

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Constant Field Values

OPTION_CUSTOM_WIDTH

protected static final String OPTION_CUSTOM_WIDTH

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Constant Field Values

OPTION_CUSTOM_HEIGHT

protected static final String OPTION_CUSTOM_HEIGHT

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Constant Field Values

OPTION_MARGIN

protected static final String OPTION_MARGIN

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Constant Field Values

OPTION_SCALING_FACTOR

protected static final String OPTION_SCALING_FACTOR

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Constant Field Values

OPTION_CLIP_TYPE

protected static final String OPTION_CLIP_TYPE

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Constant Field Values

OPTION_CLIP_VIEW

protected static final String OPTION_CLIP_VIEW

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Constant Field Values

OPTION_CLIP_GRAPH

protected static final String OPTION_CLIP_GRAPH

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Constant Field Values

TAB_TILING

protected static final String TAB_TILING

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Constant Field Values

OPTION_TILING_ACTIVE

protected static final String OPTION_TILING_ACTIVE

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Constant Field Values

OPTION_TILE_COLUMN_COUNT

protected static final String OPTION_TILE_COLUMN_COUNT

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Constant Field Values

OPTION_TILE_ROW_COUNT

protected static final String OPTION_TILE_ROW_COUNT

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Constant Field Values

OPTION_GENERATE_HTML_TABLE

protected static final String OPTION_GENERATE_HTML_TABLE

See Also:

Constant Field Values

Constructor Detail

IOHandlerModule

protected IOHandlerModule(String name,
                          String author,
                          String description)

Method Detail

setIOMode

protected void setIOMode(byte ioMode)

Sets the I/O mode the module is working in. Subclasses should set the mode accodring to the service they are providing. By default IOHandlerModule.OUTPUT_MODE is set.

Parameters:

ioMode - one of IOHandlerModule.OUTPUT_MODE or IOHandlerModule.INPUT_MODE.

configureViewPort

protected void configureViewPort(Graph2DView viewPort,
                                 Graph2DView originalView)

Configures the given viewPort. Uses the origonalView and its Graph2D as reference objects.

addViewPortOptions

protected void addViewPortOptions(OptionHandler options)

Adds viewport specific options to the given option handler instance.

addTilingOptions

protected void addTilingOptions(OptionHandler options)

Adds image-tiling specific options to the given option handler instance.

getIOMode

public byte getIOMode()

Returns the I/O mode the module is working in.

setURL

public void setURL(URL url)

Sets the location of the file to which the module either will export or import the diagram.

getURL

public URL getURL()

Returns the location of the file to which the module either will export or import the diagram.

createIOHandler

protected abstract IOHandler createIOHandler()

Creates an IOHandler instance responsible for the actual I/O to be performed. Subclasses must implement this factory method.

getIOHandler

public IOHandler getIOHandler()

Returns the IOHandler used by this module.

setIOHandler

protected void setIOHandler(IOHandler ioh)

Sets a specific IOHandler to be used by this module.

mainrun

protected void mainrun()

Read or writes a diagram in a specific format to a file.

Specified by:

mainrun in class YModule