/*
* File : TableCell.java
* Created : 29 nov. 2003
* By : Olivier
* Adapted to MyTorrents by TuxPaper 2004/02/16
*
* Azureus - a Java Bittorrent client
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details ( see the LICENSE file ).
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.gudy.azureus2.plugins.ui.tables;
import org.gudy.azureus2.plugins.ui.Graphic;
/** This interface provides access to an Azureus table cell.
*
* @see TableManager
*
* @author Oliver (Original PeerTableItem Code)
* @author TuxPaper (Generic-izing)
*
* @since 2.0.8.5
*/
// Modified from MyTorrentsTableItem/PeerTableItem
public interface TableCell {
/** Retrieve the data object associated with the current table row and cell.
* The results of this method MUST NOT BE CACHED.
* The link between a table cell and a DataSource is not persistent and can
* change from call to call (for example when the table is re-ordered, the
* link may be modified)
*
* @return The return type is dependent upon which table the cell is for:<br>
* TABLE_MYTORRENTS_*: {@link org.gudy.azureus2.plugins.download.Download}
* object for the current row<br>
* TABLE_TORRENT_PEERS: {@link org.gudy.azureus2.plugins.peers.Peer}
* object for the current row<br>
* TABLE_TORRENT_FILES: {@link org.gudy.azureus2.plugins.disk.DiskManagerFileInfo}
* object for the current row<br>
* TABLE_MYTRACKER: {@link org.gudy.azureus2.plugins.tracker.TrackerTorrent}
* object for the current row<br>
* TABLE_MYSHARES: {@link org.gudy.azureus2.plugins.sharing.ShareResource}
* object for the current row<br>
* remaining TABLE_* constants: undefined or null<br>
*/
Object getDataSource();
/** Retreive the TableColumn that this cell belongs to
*
* @return this cell's TableColumn
*/
TableColumn getTableColumn();
/** Retrieve the TableRow that this cell belongs to
*
* @return this cell's TableRow
*/
TableRow getTableRow();
/** Returns which table the cell is being displayed in.
*
* @return {@link TableManager}.TABLE_* constant
*/
String getTableID();
/**
* This method is called to set the cell's text.
* Caching is done, so that if same text is used several times,
* there won't be any 'flickering' effect. Ie the text is only updated if
* it's different from current value.
* <p>
* This function must be called from the same thread that the GUI is running
* under. Listeners like {@link TableCellAddedListener} do not always get
* called on the GUI thread.
* <p>
* If you wish to set the text and not worry about changing to the GUI thread,
* use {@link #invalidate()}, and set the text in the
* {@link TableCellRefreshListener}
*
* @param text the text to be set
* @return True - the text was updated.<br>
* False - the text was the same and not modified.
*/
boolean setText(String text);
/** Retrieve the Cell's text
*
* @return Cell's text
*/
String getText();
/** Change the cell's foreground color.
*
* @param red red value (0 - 255)
* @param green green value (0 - 255)
* @param blue blue value (0 - 255)
* @return True - Color changed. <br>
* False - Color was already set.
*/
boolean setForeground(int red, int green, int blue);
/**
* Get the foreground color of the cell
*
* @return array containing red, green, and blue color
*
* @since 2.5.0.1
*/
int[] getForeground();
/** Sets a Comparable object that column sorting will act on. If you never
* call setSortValue, your column will be sorted by the cell's text.
*
* @param valueToSort the object that will be used when the column cell's
* are compared to each other
* @return True - Sort Value changed. <br>
* False - Sort Value was already set to object supplied.
*/
public boolean setSortValue(Comparable valueToSort);
/** Sets a long value that the column sorting will act on.
*
* @param valueToSort sorting value.
* @return True - Sort Value changed. <br>
* False - Sort Value was already set to value supplied.
*/
public boolean setSortValue(long valueToSort);
/**
* Sets a float value that the column sorting will act upon.
* @param valueToSort float sort value
* @return true if sort value changed, or false if sort value already set to value supplied
*/
public boolean setSortValue( float valueToSort );
/** Retrieves the sorting value
*
* @return Object that will be sorted on
*/
public Comparable getSortValue();
/** Determines if the user has chosen to display the cell
*
* @return True - User has chosen to display cell
*/
boolean isShown();
/** Validility of the cell's text.
*
* @return True - Text is the same as last call. You do not need to update
* unless you have new text to display. <br>
* False - Cell-to-Datasource link has changed, and the text is
* definitely not valid.
*/
boolean isValid();
/** Sets the cell to invalid. This will result in a refresh on the next
* scheduled interval.
*
* @since 2.3.0.7
*/
public void invalidate();
/**
* Set the cell's tooltip display.
*
*
* @param tooltip Object to display. Currently, only String is supported
*
* @see #addToolTipListener(TableCellToolTipListener)
* @since 2.1.0.2
*/
public void setToolTip(Object tooltip);
/**
* Retrieve the tooltip object assigned to this cell
*
* @return tooltip object
*
* @see #addToolTipListener(TableCellToolTipListener)
* @since 2.1.0.2
*/
public Object getToolTip();
/**
* Retrieve whether the cell has been disposed. This will return true after
* the {@link TableCellDisposeListener} is triggered.
*
* @return disposal state
* @since 2.3.0.7
*/
public boolean isDisposed();
/**
* Retrieves the number of lines available for setting text
*
* @return # of lines available
*
* @since 3.0.1.1
*/
public int getMaxLines();
//////////////////////////////////
// Start TYPE_GRAPHIC functions //
//////////////////////////////////
/** Retrieve the width of the cell's drawing area (excluding any margin) for
* TableColumn objects of TYPE_GRAPHIC only.
*
* @return if you are filling the cell, this is the width your image should be
*/
public int getWidth();
/** Retrieve the height of the cell's drawing area (excluding any margin) for
* TableColumn objects of TYPE_GRAPHIC only.
*
* @return if you are filling the cell, this is the height your image should be
*/
public int getHeight();
/** Sets the image to be drawn.
*
* @param img image to be stored & drawn
* @return true - image was changed.<br>
* false = image was the same
*/
public boolean setGraphic(Graphic img);
/** Retrieve the SWT graphic related to this table item for
* TableColumn objects of TYPE_GRAPHIC only.
*
* @return the Image that is draw in the cell, or null if there is none.
*/
public Graphic getGraphic();
/** TODO:
/** Sets the image to be drawn to the file specified for
* TableColumn objects of TYPE_GRAPHIC only.
*
* @param imageLocation URI of image
* @return true - image was changed.<br>
* false = image was the same
*
public boolean setGraphic(String imageLocation);
*/
/** Sets whether the graphic fills the whole cell for
* TableColumn objects of TYPE_GRAPHIC only. This may effect how often
* a refresh of the cell is needed, and effects alignment.
*
* @param bFillCell true - the whole cell is filled by the graphic
*/
public void setFillCell(boolean bFillCell);
/**
* Specifies the number of pixels of vertical margin that will
* be placed along the top and bottom edges of the layout for
* TableColumn objects of TYPE_GRAPHIC only.
* <p>
* The default is 1.
*
* @param height new margin height
*/
public void setMarginHeight(int height);
/**
* Specifies the number of pixels of horizontal margin that will
* be placed along the left and right edges of the layout for
* TableColumn object of TYPE_GRAPHIC only.
* <p>
* The default is 1.
*
* @param width new margin width
*/
public void setMarginWidth(int width);
// End TYPE_GRAPHIC functions
/** Adds a listener that triggers when the TableCell needs refreshing
*
* @param listener Listener Object to be called when refresh is needed.
*/
public void addRefreshListener(TableCellRefreshListener listener);
/** Remove a previously added TableCellRefreshListener
*
* @param listener Previously added listener
*/
public void removeRefreshListener(TableCellRefreshListener listener);
/** Adds a listener that triggers when the TableCell has been disposed
*
* @param listener listener object to be called
*/
public void addDisposeListener(TableCellDisposeListener listener);
/** Remove a previously added TableCellDisposeListener
*
* @param listener Previously added listener
*/
public void removeDisposeListener(TableCellDisposeListener listener);
/** Adds a listener related to tooltip actions
*
* @param listener listener object to be called
*/
public void addToolTipListener(TableCellToolTipListener listener);
/** Remove a previously added TableCellToolTipListener
*
* @param listener Previously added listener
*/
public void removeToolTipListener(TableCellToolTipListener listener);
/**
* Adds a listener that triggers when a TableCell that belongs to this column
* has a mouse event.
*
* @param listener
*
* @since 2.3.0.7
*/
public void addMouseListener(TableCellMouseListener listener);
/** Remove a previously added TableCellMouseListener
*
* @param listener Previously added listener
* @since 2.3.0.7
*/
public void removeMouseListener(TableCellMouseListener listener);
/**
* A listener is added for every type of cell listener the supplied object
* implements
*
* @param listenerObject Object implementing some cell listeneters
*/
public void addListeners(Object listenerObject);
}
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