echopoint
Class GridPanel

java.lang.Object
  nextapp.echo.Component
      nextapp.echo.Panel
          echopoint.Panel
              echopoint.ScrollablePanel
                  echopoint.GridPanel

All Implemented Interfaces:

Borderable, Clippable, LayoutManageable, MouseCursorable, Positionable, ReflectionSetter, Scrollable, ScrollableContainer, java.io.Serializable

public class GridPanel

extends ScrollablePanel

The GridPanel is a ScrollablePanel that uses an GridLayoutManager as its layout manager.

Why, when Echo already has a Grid component, would you use GridPanel?

Grid requires you to always specify {column,row} coordinates when adding components. GridPanel alleviates this by maintaining a "cell cursor" to which newly added Components can be added. The GridPanel will grow in height to accomodate new Components.

Nearly all of the functionality of GridPanel is provided by its underlying GridLayoutManager. And of course GridLayoutManager can be used on any LayoutManageable container like ScrollablePanel, HidingSlidingPanel or DialogPanel.

See Also:

GridLayoutManager, Serialized Form

Nested Class Summary

Nested classes inherited from class echopoint.positionable.ScrollableContainer

ScrollableContainer.NestedStyleInfo

Nested classes inherited from class echopoint.positionable.MouseCursorable

MouseCursorable.NestedStyleInfo

Field Summary

static int	EVEN_CENTER
static int	EVEN_LEFT
static int	EVEN_RIGHT
static int	ODD_CENTER
static int	ODD_LEFT
static int	ODD_RIGHT

Fields inherited from class echopoint.ScrollablePanel

DEFAULT_POSITONABLE_POLICY, DEFAULT_SCROLLBAR_POLICY

Fields inherited from class nextapp.echo.Panel

DEFAULT_INSETS, HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY, INSETS_CHANGED_PROPERTY, STYLE_HORIZONTAL_ALIGNMENT, STYLE_INSETS, STYLE_VERTICAL_ALIGNMENT, VERTICAL_ALIGNMENT_CHANGED_PROPERTY

Fields inherited from class nextapp.echo.Component

BACKGROUND_CHANGED_PROPERTY, CHILDREN_CHANGED_PROPERTY, ENABLED_CHANGED_PROPERTY, FONT_CHANGED_PROPERTY, FOREGROUND_CHANGED_PROPERTY, IDENTIFIER_CHANGED_PROPERTY, listenerList, LOCALE_CHANGED_PROPERTY, MODEL_CHANGED_PROPERTY, STYLE_BACKGROUND, STYLE_FONT, STYLE_FOREGROUND, UPDATE_PROPERTY, VISIBLE_CHANGED_PROPERTY

Fields inherited from interface echopoint.positionable.ScrollableContainer

HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY, INSETS_CHANGED_PROPERTY, STYLE_HORIZONTAL_ALIGNMENT, STYLE_INSETS, STYLE_VERTICAL_ALIGNMENT, VERTICAL_ALIGNMENT_CHANGED_PROPERTY

Fields inherited from interface echopoint.positionable.Scrollable

HEIGHT_CHANGED_PROPERTY, SCROLL_BAR_X_CHANGED_PROPERTY, SCROLL_BAR_Y_CHANGED_PROPERTY, SCROLLBAR_POLICY_CHANGED_PROPERTY, SCROLLBARS_ALWAYS, SCROLLBARS_AUTO, SCROLLBARS_CLIPHIDE, SCROLLBARS_NEVER, STYLE_HEIGHT, STYLE_SCROLL_BAR_POLICY, STYLE_WIDTH, UNDEFINED, undefinedSymbolic, WIDTH_CHANGED_PROPERTY

Fields inherited from interface echopoint.positionable.Positionable

POSITION_CHANGED_PROPERTY, POSITIONING_ABSOLUTE, POSITIONING_FLOW, POSITIONING_RELATIVE, positioningSymbolics, STYLE_BOTTOM, STYLE_LEFT, STYLE_POSITIONING, STYLE_RIGHT, STYLE_TOP, STYLE_ZINDEX, UNDEFINED, undefinedSymbolic

Fields inherited from interface echopoint.positionable.Clippable

CLIP_RECT_CHANGED_PROPERTY, STYLE_CLIP_RECT

Fields inherited from interface echopoint.positionable.Borderable

BORDER_DASHED, BORDER_DOTTED, BORDER_DOUBLE, BORDER_GROOVE, BORDER_INSET, BORDER_NONE, BORDER_OUTSET, BORDER_RIDGE, BORDER_SOLID, borderStyleSymbolics, STYLE_BORDER_COLOR, STYLE_BORDER_SIZE, STYLE_BORDER_STYLE, STYLE_BOTTOM_BORDER_COLOR, STYLE_BOTTOM_BORDER_SIZE, STYLE_BOTTOM_BORDER_STYLE, STYLE_LEFT_BORDER_COLOR, STYLE_LEFT_BORDER_SIZE, STYLE_LEFT_BORDER_STYLE, STYLE_RIGHT_BORDER_COLOR, STYLE_RIGHT_BORDER_SIZE, STYLE_RIGHT_BORDER_STYLE, STYLE_TOP_BORDER_COLOR, STYLE_TOP_BORDER_SIZE, STYLE_TOP_BORDER_STYLE

Fields inherited from interface echopoint.layout.LayoutManageable

LAYOUT_MANAGED_CHANGED_PROPERTY

Fields inherited from interface echopoint.positionable.MouseCursorable

borderStyleSymbolics, CURSOR_AUTO, CURSOR_CROSSHAIR, CURSOR_CUSTOM_URI, CURSOR_DEFAULT, CURSOR_E_RESIZE, CURSOR_HELP, CURSOR_MOVE, CURSOR_N_RESIZE, CURSOR_NE_RESIZE, CURSOR_NW_RESIZE, CURSOR_POINTER, CURSOR_S_RESIZE, CURSOR_SE_RESIZE, CURSOR_SW_RESIZE, CURSOR_TEXT, CURSOR_W_RESIZE, CURSOR_WAIT, STYLE_MOUSE_CURSOR, STYLE_MOUSE_CURSOR_URI

Constructor Summary

GridPanel()
Constructs a GridPanel with an internal GridLayoutManager sized as 1000 x 1 cells.

GridPanel(int width, int height)
Constructs a GridPanel with the specified cell width and cell height.

GridPanel(int left, int top, int right, int bottom)
Constructs a GridPanel with a cell width of 1 and cell height of 1.

GridPanel(int left, int top, int right, int bottom, int zIndex)
Constructs a GridPanel with a cell width of 1 and cell height of 1 and a zIndex.

GridPanel(int left, int top, int right, int bottom, int zIndex, int positioning)
Constructs a GridPanel with a cell width of 1 and cell height of 1 and a zIndex and a positioning value.

GridPanel(int left, int top, int right, int bottom, int zIndex, int positioning, int scrollBarPolicy)
Constructs a GridPanel with a cell width of 1 and cell height of 1.

GridPanel(int left, int top, int right, int bottom, int zIndex, int positioning, int scrollBarPolicy, int[] clipRect)
Constructs a GridPanel with a cell width of 1 and cell height of 1.

Method Summary

int	getCellSpacing() Gets the cell spacing of the underlying GridLayoutManager.
int	getCursorColumn() Returns the current Column position of the Grid cursor.
int	getCursorRow() Returns the current Row position of the Grid cursor
int	getGridHeight() Gets the height of the underlying GridLayoutManager
int	getGridWidth() Gets the width of the underlying GridLayoutManager
int	getHorizontalAlignment() Gets the horizontal alignment of the underlying GridLayoutManager.
int	getVerticalAlignment() Gets the vertical alignment of the underlying GridLayoutManager.
boolean	isFullHeight() Returns TRUE if the underlying GridLayoutManager will fill its parents full height
boolean	isFullWidth() Returns TRUE if the underlying GridLayoutManager will fill its parents full width
void	newLine() Invokes newLine() on the underlying GridLayoutManager.
java.lang.Object	set(java.lang.reflect.Field field, java.lang.Object newValue) Called to save the old value of a field, set in a new value and return the old value of a field.
void	setCellSpacing(int newCellSpacing) Sets the cell spacing of the underlying GridLayoutManager.
void	setCursorColumn(int newColumn) Sets the current Column position of the Grid cursor.
void	setCursorRow(int newRow) Sets the current Row position of the Grid cursor
void	setFullHeight(boolean newFullHeight) If this is TRUE then the underlying GridLayoutManager will fill its parents full height.
void	setFullWidth(boolean newFullWidth) If this is TRUE then the underlying GridLayoutManager will fill its parents full width.
void	setGridHeight(int newHeight) Sets the height of the underlying GridLayoutManager
void	setGridWidth(int newWidth) Sets the width of the underlying GridLayoutManager
void	setHorizontalAlignment(int newHorizontalAlignment) Sets the horizontal alignment of the underlying GridLayoutManager.
void	setLayoutManager(LayoutManager newLayoutManager) Sets a new LayoutManager into the LayoutManageable container.
void	setVerticalAlignment(int newVerticalAlignment) Sets the vertical alignment of the underlying GridLayoutManager.
void	space() Invokes space() on the underlying GridLayoutManager.

Methods inherited from class echopoint.ScrollablePanel

applyStyle, clearPositioning, getBottom, getClipRect, getHeight, getLeft, getPositioning, getRight, getScreenHeight, getScreenWidth, getScrollBarPolicy, getScrollBarX, getScrollBarY, getTop, getWidth, getzIndex, isPositioned, setBottom, setClipRect, setClipRect, setClipRect, setHeight, setLeft, setPositioning, setRight, setScrollBarPolicy, setScrollBarX, setScrollBarY, setTop, setWidth, setzIndex

Methods inherited from class echopoint.Panel

add, add, add, add, addImpl, getBorderColor, getBorderSize, getBorderStyle, getBottomBorderColor, getBottomBorderSize, getBottomBorderStyle, getLayoutManager, getLeftBorderColor, getLeftBorderSize, getLeftBorderStyle, getMouseCursor, getMouseCursorURI, getRightBorderColor, getRightBorderSize, getRightBorderStyle, getTopBorderColor, getTopBorderSize, getTopBorderStyle, remove, remove, setBorderColor, setBorderSize, setBorderStyle, setBottomBorderColor, setBottomBorderSize, setBottomBorderStyle, setLeftBorderColor, setLeftBorderSize, setLeftBorderStyle, setMouseCursor, setMouseCursorURI, setRightBorderColor, setRightBorderSize, setRightBorderStyle, setTopBorderColor, setTopBorderSize, setTopBorderStyle

Methods inherited from class nextapp.echo.Panel

getInsets, setInsets

Methods inherited from class nextapp.echo.Component

addHierarchyListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getComponent, getComponentCount, getComponents, getEchoInstance, getFont, getForeground, getIdentifier, getLocale, getParent, indexOf, init, isAncestorOf, isEnabled, isRegistered, isShowing, isVisible, removeAll, removeHierarchyListener, removePropertyChangeListener, setBackground, setEnabled, setFont, setForeground, setIdentifier, setLocale, setVisible, update, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface echopoint.positionable.ScrollableContainer

getInsets, setInsets

Methods inherited from interface echopoint.positionable.Borderable

getBorderColor, getBorderSize, getBorderStyle, getBottomBorderColor, getBottomBorderSize, getBottomBorderStyle, getLeftBorderColor, getLeftBorderSize, getLeftBorderStyle, getRightBorderColor, getRightBorderSize, getRightBorderStyle, getTopBorderColor, getTopBorderSize, getTopBorderStyle, setBorderColor, setBorderSize, setBorderStyle, setBottomBorderColor, setBottomBorderSize, setBottomBorderStyle, setLeftBorderColor, setLeftBorderSize, setLeftBorderStyle, setRightBorderColor, setRightBorderSize, setRightBorderStyle, setTopBorderColor, setTopBorderSize, setTopBorderStyle

Methods inherited from interface echopoint.layout.LayoutManageable

add, add, add, add, getLayoutManager, remove, remove

Field Detail

ODD_LEFT

public static final int ODD_LEFT

See Also:

GridLayoutManager, Constant Field Values

ODD_RIGHT

public static final int ODD_RIGHT

See Also:

GridLayoutManager, Constant Field Values

ODD_CENTER

public static final int ODD_CENTER

See Also:

GridLayoutManager, Constant Field Values

EVEN_LEFT

public static final int EVEN_LEFT

See Also:

GridLayoutManager, Constant Field Values

EVEN_RIGHT

public static final int EVEN_RIGHT

See Also:

GridLayoutManager, Constant Field Values

EVEN_CENTER

public static final int EVEN_CENTER

See Also:

GridLayoutManager, Constant Field Values

Constructor Detail

GridPanel

public GridPanel()

Constructs a GridPanel with an internal GridLayoutManager sized as 1000 x 1 cells.

Therefore if you add Components to this GridPanel without specifying the co-ordinates, then the Components will line up left to right until you call newLine();

See Also:

GridLayoutManager

GridPanel

public GridPanel(int width,
                 int height)

Constructs a GridPanel with the specified cell width and cell height.

Note that this contructor differs from the usual ScrollablePanel constructor which usually takes left and top values.

See Also:

GridLayoutManager

GridPanel

public GridPanel(int left,
                 int top,
                 int right,
                 int bottom)

Constructs a GridPanel with a cell width of 1 and cell height of 1. It will be placed at {left,top}{right,bottom} co-ordinates.

See Also:

ScrollablePanel

GridPanel

public GridPanel(int left,
                 int top,
                 int right,
                 int bottom,
                 int zIndex)

Constructs a GridPanel with a cell width of 1 and cell height of 1 and a zIndex. It will be placed at {left,top}{right,bottom} co-ordinates.

See Also:

ScrollablePanel

GridPanel

public GridPanel(int left,
                 int top,
                 int right,
                 int bottom,
                 int zIndex,
                 int positioning)

Constructs a GridPanel with a cell width of 1 and cell height of 1 and a zIndex and a positioning value. It will be placed at {left,top}{right,bottom} co-ordinates.

See Also:

ScrollablePanel

GridPanel

public GridPanel(int left,
                 int top,
                 int right,
                 int bottom,
                 int zIndex,
                 int positioning,
                 int scrollBarPolicy)

Constructs a GridPanel with a cell width of 1 and cell height of 1.

See Also:

ScrollablePanel

GridPanel

public GridPanel(int left,
                 int top,
                 int right,
                 int bottom,
                 int zIndex,
                 int positioning,
                 int scrollBarPolicy,
                 int[] clipRect)

Constructs a GridPanel with a cell width of 1 and cell height of 1.

See Also:

ScrollablePanel

Method Detail

getCellSpacing

public int getCellSpacing()

Gets the cell spacing of the underlying GridLayoutManager.

See Also:

GridLayoutManager

getCursorColumn

public int getCursorColumn()

Returns the current Column position of the Grid cursor.

See Also:

GridLayoutManager

getCursorRow

public int getCursorRow()

Returns the current Row position of the Grid cursor

See Also:

GridLayoutManager

getGridHeight

public int getGridHeight()

Gets the height of the underlying GridLayoutManager

See Also:

GridLayoutManager

getGridWidth

public int getGridWidth()

Gets the width of the underlying GridLayoutManager

See Also:

GridLayoutManager

getHorizontalAlignment

public int getHorizontalAlignment()

Gets the horizontal alignment of the underlying GridLayoutManager.

This can be one of the EchoConstant values :

• EchoConstant.LEFT
• EchoConstant.RIGHT
• EchoConstant.CENTER

You can also "OR" on the following values to overrride the above

• ODD_LEFT
• ODD_RIGHT
• ODD_CENTER
• EVEN_LEFT
• EVEN_RIGHT
• EVEN_CENTER

The above will only be applied to their respective "odd" or "even" columns.

Returns:

int

See Also:

GridLayoutManager

getVerticalAlignment

public int getVerticalAlignment()

Gets the vertical alignment of the underlying GridLayoutManager.

This can be one of the EchoConstant values :

• EchoConstant.TOP
• EchoConstant.MIDDLE
• EchoConstant.BOTTOM

Returns:

int

See Also:

GridLayoutManager

isFullHeight

public boolean isFullHeight()

Returns TRUE if the underlying GridLayoutManager will fill its parents full height

Returns:

boolean

See Also:

GridLayoutManager

isFullWidth

public boolean isFullWidth()

Returns TRUE if the underlying GridLayoutManager will fill its parents full width

Returns:

boolean

See Also:

GridLayoutManager

newLine

public void newLine()

Invokes newLine() on the underlying GridLayoutManager.

See Also:

GridLayoutManager

setCellSpacing

public void setCellSpacing(int newCellSpacing)

Sets the cell spacing of the underlying GridLayoutManager.

See Also:

GridLayoutManager

setCursorColumn

public void setCursorColumn(int newColumn)

Sets the current Column position of the Grid cursor.

See Also:

GridLayoutManager

setCursorRow

public void setCursorRow(int newRow)

Sets the current Row position of the Grid cursor

See Also:

GridLayoutManager

setFullHeight

public void setFullHeight(boolean newFullHeight)

If this is TRUE then the underlying GridLayoutManager will fill its parents full height.

Parameters:

newFullHeight - boolean

See Also:

GridLayoutManager

setFullWidth

public void setFullWidth(boolean newFullWidth)

If this is TRUE then the underlying GridLayoutManager will fill its parents full width.

Parameters:

newFullWidth - boolean

See Also:

GridLayoutManager

setGridHeight

public void setGridHeight(int newHeight)

Sets the height of the underlying GridLayoutManager

See Also:

GridLayoutManager

setGridWidth

public void setGridWidth(int newWidth)

Sets the width of the underlying GridLayoutManager

See Also:

GridLayoutManager

setHorizontalAlignment

public void setHorizontalAlignment(int newHorizontalAlignment)

Sets the horizontal alignment of the underlying GridLayoutManager.

This can be one of the EchoConstant values :

• EchoConstant.LEFT
• EchoConstant.RIGHT
• EchoConstant.CENTER

You can also "OR" on the following values to overrride the above

• ODD_LEFT
• ODD_RIGHT
• ODD_CENTER
• EVEN_LEFT
• EVEN_RIGHT
• EVEN_CENTER

The above will only be applied to their respective "odd" or "even" columns.

Parameters:

newHorizontalAlignment - int

See Also:

GridLayoutManager

setLayoutManager

public void setLayoutManager(LayoutManager newLayoutManager)

Sets a new LayoutManager into the LayoutManageable container. This must be non-null and an instanceof of GridLayoutManager otherwise an IllegalArgumentException is thrown.

Specified by:

setLayoutManager in interface LayoutManageable

Overrides:

setLayoutManager in class Panel

See Also:

LayoutManageable.setLayoutManager(echopoint.layout.LayoutManager)

setVerticalAlignment

public void setVerticalAlignment(int newVerticalAlignment)

Sets the vertical alignment of the underlying GridLayoutManager.

This can be one of the EchoConstant values :

• EchoConstant.TOP
• EchoConstant.MIDDLE
• EchoConstant.BOTTOM

Parameters:

newVerticalAlignment - int

See Also:

GridLayoutManager

space

public void space()

Invokes space() on the underlying GridLayoutManager.

See Also:

GridLayoutManager

set

public java.lang.Object set(java.lang.reflect.Field field,
                            java.lang.Object newValue)
                     throws java.lang.Exception

Description copied from interface: ReflectionSetter

Called to save the old value of a field, set in a new value and return the old value of a field. This interface allows a field set operation to be "delegated" back into the class that has permission to perform the field set.

 public Object set(Field f, Object newValue) throws Exception {
      Object oldValue = f.get(this);
      f.set(this,newValue);
      return oldValue;
 }
 

Specified by:

set in interface ReflectionSetter

Overrides:

set in class ScrollablePanel

Throws:

java.lang.Exception

See Also:

ReflectionSetter.set(Field, Object)