Configuring copy/paste operations in applets.

Using this configuration the copy/paste operations available in the applet can be controlled: the formats available for copy or paste can be manipulated, or the corresponding resources can be preloaded.
For example, the copy or paste of specific file formats can be forced to be immediately available after the start of the applet, so instead of loading the underlying architecture on demand, the required resources are loaded during the applet initialization time.
In addition, the formats available on the clipboard after a simple copy operation can be configured, as well as the list of formats available in the Copy As dialog.

The configuration is available through a Java properties file which has to be placed to the APPLET_CODEBASE/chemaxon/marvin/datatransfer.properties file. If this file is available in the applet codebase, the configuration will take effect.

This properties file contains settings for format keys. The property name format is as follows: formatkey.configuration.setting.id, so for example, if somebody wants to disable the png format on the copy as dialog, then the png.use.dialog key has to be set to false.

Available format keys in the property file, and the corresponding formats:

Format key	The corresponding format
mrv	Marvin Document Format
skc	IsisDraw Sketch file format
cdx	ChemDraw Sketch file format
mol	MDL MOLfile format
rxn	MDL RXNfile format
smiles	Daylight SMILES format
cxsmiles	Chemaxon extended SMILES format
name	IUPAC name format
trad_name	Traditional name format
inchi	IUPAC InChI format
inchikey	IUPAC InChIKey format
string	Molecule source, containing the actual file format of the molecule object
emf	Enchanced Metafile picture format (available only on windows platforms)
jpg	JPG image format
png	PNG image format

Available configurable properties for all formats and their meanings:

Parameter name	Valid values	Meaning
name	can be any String	This will be displayed in the Copy As dialog to represent the format.
disabled	true/false	If set to false, then the format won't be available at all.
preload.copy	true/false	If set to true, then the classes needed for copying in the specified format will be preloaded at applet initialization.
preload.paste	true/false	If set to true, then the classes needed for pasting in the specified format will be preloaded at applet initialization.
preload	true/false	If set to true, then the classes needed for copying or pasting in the specified format will be preloaded at applet initialization.
use.default	true/false	If set to true, then the molecule will be placed to the clipboard by a simple copy operation in the specified format.
use.dialog	true/false	If set to false, then the specified format won't be available in the Copy As dialog.

By default, none of the formats are preloaded, all of them are configured as they worked before.

Other available options:

The following keys are not related to the formats, and should be used as they are:

Property name	Valid values	Meaning
ole.enabled	true/false	If Microsoft OLE object copy should be disabled then set to false.
ole.name	can be any String	This will be displayed in the Copy as dialog to represent the Microsoft OLE object format.
separator	a comma separated list of format keys.	After the enumerated formats a separator will be placed in the copy as dialog.

The default configuration file


#define where to place separator in the copy as dialog.

#comma separated list, separators will be placed after the listed formats

separator = string



#OLE related settings. Note: OLE is usable only on Windows platforms.

ole.name = Marvin Object (OLE)

ole.enabled = true



#structure formats

mrv.name = Marvin Document (MRV)

mrv.disabled = false

mrv.preload.copy = false

mrv.preload.paste = false

mrv.use.default = true

mrv.use.dialog = true



skc.name = ISIS (Symyx) file (SKC)

skc.disabled = false

skc.preload = false

skc.use.default = true

skc.use.dialog = true



cdx.name = ChemDraw file (CDX)

cdx.disabled = false

cdx.preload = false

cdx.use.default = true

cdx.use.dialog = true



mol.name = MDL MOLfile

mol.disabled = false

mol.preload.copy = false

mol.preload.paste = false

mol.use.default = true

mol.use.dialog = true



rxn.name = MDL RXNfile

rxn.disabled = false

rxn.preload.copy = false

rxn.preload.paste = false

rxn.use.default = true

rxn.use.dialog = true



smiles.name = Daylight SMILES

smiles.disabled = false

smiles.preload.copy = false

smiles.preload.paste = false

smiles.use.default = false

smiles.use.dialog = true



cxsmiles.name = ChemAxon SMILES (CXSMILES)

cxsmiles.disabled = false

cxsmiles.preload.copy = false

cxsmiles.preload.paste = false

cxsmiles.use.default = false

cxsmiles.use.dialog = true



name.name = Name

name.disabled = false

name.preload.copy = false

name.preload.paste = false

name.use.default = false

name.use.dialog = true



inchi.name = InChI

inchi.disabled = false

inchi.preload = false

inchi.use.default = false

inchi.use.dialog = true



inchikey.name = InChIKey

inchikey.disabled = false

inchikey.preload = false

inchikey.use.default = false

inchikey.use.dialog = true



string.name = Molecule Source (Plain Text)

string.disabled = false

string.preload = false

string.use.default = true

string.use.dialog = true



#image formats

#emf supported only on Windows platforms

emf.name = EMF Image

emf.disabled = false

emf.preload = false

emf.use.default = true

emf.use.dialog = true



#default copy contains these formats because Java Image Flavor is used in default copy.

jpg.name = JPG Image

jpg.disabled = false

jpg.preload = false

jpg.use.default = false

jpg.use.dialog = true



png.name = PNG Image

png.disabled = false

png.preload = false

png.use.default = false

png.use.dialog = true

Further format couplings

Please consider this information also while changing the configuration.

If OLE is enabled, then the OLE data will contain the mrv, the mol or rxn file, and the emf image also.
Default copy places image data to the clipboard, in java image format. If you want to disable this behaviour you have to set the jimage.use.default property to true.