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java.lang.Objectorg.jdesktop.swingx.renderer.CellContext<T>
public class CellContext<T extends JComponent>
Encapsulates the display context passed into the getXXRendererComponent.
Introduced to extract common state on which renderer configuration might rely. Similar to the view part of ComponentAdapter - difference is that the properties are not "live" dependent on the component but those passed-in are used.
Additionally, provides lookup services to accessing state-dependent ui-specific default visual properties (like colors, borders, icons). Typically, they are taken from the UIManager or from the component, if supported in the component api.
NOTE: the generic parameterization is useful to have a type-safe installContext. Reason enough?
Field Summary | |
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protected int |
column
|
protected T |
component
|
protected boolean |
expanded
|
protected boolean |
focused
|
protected boolean |
leaf
|
protected static Border |
noFocusBorder
the default border for unfocused cells. |
protected int |
row
|
protected boolean |
selected
|
protected Object |
value
|
Constructor Summary | |
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CellContext()
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Method Summary | |
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protected Color |
getBackground()
Returns the background color of the renderered component or null if the component is null |
protected Border |
getBorder()
Returns the default border of the renderered component depending on cell state. |
int |
getColumn()
Returns the cell's column index in view coordinates as set in the install. |
T |
getComponent()
Returns the component the cell resides on, may be null. |
protected Color |
getFocusBackground()
Returns the default focused background color of the renderered component. |
protected Border |
getFocusBorder()
Returns the default focus border of the renderered component. |
protected Color |
getFocusForeground()
Returns the default focused foreground color of the renderered component. |
protected Color |
getForeground()
Returns the foreground color of the renderered component or null if the component is null |
Icon |
getIcon()
Returns the icon. |
int |
getRow()
Returns the cell's row index in view coordinates as set in the install. |
protected Color |
getSelectionBackground()
Returns the default selection background color of the renderered component. |
protected Color |
getSelectionForeground()
Returns the default selection foreground color of the renderered component. |
protected String |
getUIKey(String key)
Convenience method to build a component type specific lookup key for the UIManager. |
protected String |
getUIPrefix()
Returns the component type specific prefix of keys for lookup in the UIManager. |
Object |
getValue()
Returns the value of the cell as set in the install. |
void |
installContext(T component,
Object value,
int row,
int column,
boolean selected,
boolean focused,
boolean expanded,
boolean leaf)
Sets state of the cell's context. |
boolean |
isEditable()
Returns the cell's editability. |
boolean |
isExpanded()
Returns the expanded state as set in the install. |
boolean |
isFocused()
Returns the focused state as set in the install. |
boolean |
isLeaf()
Returns the leaf state as set in the install. |
boolean |
isSelected()
Returns the selected state as set in the install. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static Border noFocusBorder
protected transient T extends JComponent component
protected transient Object value
protected transient int row
protected transient int column
protected transient boolean selected
protected transient boolean focused
protected transient boolean expanded
protected transient boolean leaf
Constructor Detail |
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public CellContext()
Method Detail |
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public void installContext(T component, Object value, int row, int column, boolean selected, boolean focused, boolean expanded, boolean leaf)
component
- the component the cell resides on, might be nullvalue
- the content value of the cellrow
- the cell's row index in view coordinatescolumn
- the cell's column index in view coordinatesselected
- the cell's selected statefocused
- the cell's focused stateexpanded
- the cell's expanded stateleaf
- the cell's leaf statepublic T getComponent()
public Object getValue()
public int getRow()
public int getColumn()
public boolean isSelected()
public boolean isFocused()
public boolean isExpanded()
public boolean isLeaf()
public boolean isEditable()
Here: false.
public Icon getIcon()
Here: null
.
protected Color getForeground()
PENDING: fallback to UI properties if comp == null?
protected Color getBackground()
PENDING: fallback to UI properties if comp == null?
protected Color getSelectionBackground()
PENDING: return UI properties here?
protected Color getSelectionForeground()
PENDING: return UI properties here?
protected Border getFocusBorder()
protected Border getBorder()
Here: returns the focus border if the cell is focused, the context defined no focus border otherwise.
protected Color getFocusForeground()
protected Color getFocusBackground()
protected String getUIKey(String key)
key
- the general part of the key
protected String getUIPrefix()
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