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Class JGrid.JGrid2

Object
   |
   +----Component
           |
           +----Container
                   |
                   +----Panel
                           |
                           +----JGrid.JGrid2

public class JGrid2

extends Panel

BOTH_BORDER

both borders

HORIZONTAL_BORDER

horizontal border only

VERTICAL_BORDER

vertical border only

JGrid.JGrid2(String[], String[], boolean, int)

constructor.

action(Event, Object)

overrides action() method.

computeHScroll()

rearranges the position and value of horizontal scroll bar.

computeVScroll()

rearranges the position and value of vertical scroll bar.

getCell(int, int)

get the cell at position (row,column)

keyDown(Event, int)

handles key event

mouseDown(Event, int, int)

handles mouseDown Events.

mouseDrag(Event, int, int)

handles mouseDrag events.

mouseMove(Event, int, int)

handles the mouse move event.

mouseUp(Event, int, int)

handles mouseUp Event.

paint(Graphics)

refresh()

call this method after the data and/or cell features have been changed

reshape(int, int, int, int)

overrides the reshape method of component.

setCallback(JGridCallback)

set the callback for the grid

setColWidths(int[])

set the column width for each column
CAUTION: The array size of colWidths should be the same as the size of the title array

setContents(Object[][], boolean)

set the contents of the grid

setFeatures(String, String)

set the cell/row/column features
CAUTION: New features will override the old features.

update(Graphics)

overrides the update method of component

public static final int BOTH_BORDER

both borders

public static final int HORIZONTAL_BORDER

horizontal border only

public static final int VERTICAL_BORDER

vertical border only

public JGrid2(String[] title,
              String[] columnTypes,
              boolean margin,
              int borderFlag)

constructor.
NOTE: The constructor determines the column number and all titles for each column. You can't change the title and column types after the grid is created.

Parameters:

title - The title array for the grid

columnTypes - The column types for the grid: Basic,News,Chart

margin - Whether the grid has margin or not

borderFlag - The border for each cell

public boolean action(Event evt,
                      Object what)

overrides action() method. NOTE: all scrollbar event should return false so that scrollbar can handle it.

Parameters:

evt - java.awt.Event

Returns:

boolean

Overrides:

action in class Component

protected void computeHScroll()

rearranges the position and value of horizontal scroll bar.

protected void computeVScroll()

rearranges the position and value of vertical scroll bar.

public JGrid.ICell getCell(int row,
                           int column)

get the cell at position (row,column)

Parameters:

row - row number of the cell

column - column number of the cell

Returns:

ICell a cell

public boolean keyDown(Event evt,
                       int key)

handles key event

Parameters:

evt - event object

key - the key code for the key input

Overrides:

keyDown in class Component

public boolean mouseDown(Event evt,
                         int x,
                         int y)

handles mouseDown Events.

Parameters:

evt - java.awt.Event

x - int

y - int

Returns:

boolean

Overrides:

mouseDown in class Component

public boolean mouseDrag(Event evt,
                         int x,
                         int y)

handles mouseDrag events.

Parameters:

evt - java.awt.Event

x - int

y - int

Returns:

boolean

Overrides:

mouseDrag in class Component

public boolean mouseMove(Event evt,
                         int x,
                         int y)

handles the mouse move event.

Parameters:

evt - java.awt.Event

x - int

y - int

Returns:

boolean

Overrides:

mouseMove in class Component

public boolean mouseUp(Event evt,
                       int x,
                       int y)

handles mouseUp Event.

Parameters:

evt - java.awt.Event

x - int

y - int

Returns:

boolean

Overrides:

mouseUp in class Component

public void paint(Graphics g)

Overrides:

paint in class Container

public void refresh()

call this method after the data and/or cell features have been changed

public void reshape(int x,
                    int y,
                    int width,
                    int height)

overrides the reshape method of component.

Parameters:

x - int

y - int

width - int

height - int

Overrides:

reshape in class Component

public void setCallback(JGridCallback callback)

set the callback for the grid

Parameters:

callback - a JGridCallback instance

public void setColWidths(int colWidths)

set the column width for each column
CAUTION: The array size of colWidths should be the same as the size of the title array

Parameters:

colWidths - the array of sizes for columns

public void setContents(Object[][] newValues,
                        boolean createContents)

set the contents of the grid

Parameters:

contents - array of values

recreateContents - if the size of the array changed compared to the current size

public void setFeatures(String pos,
                        String feature)

set the cell/row/column features
CAUTION: New features will override the old features. So it is recommended that users set the row features first, column features next and cell features last.

Parameters:

pos - group cells or a single cell; have a format of "row,column" or ",column"
NOTE: set features on a row has no effect.

feature - features "bgColor,textColor"; feature does not include type of cells.
Basic type: basic data type,background color,text color,alignment
Chart type: no features so far
News type: background color,text color
HNews type: background color,text color,step size

features can be enhanced based on special requirements.

public void update(Graphics g)

overrides the update method of component

Parameters:

g - java.awt.Graphics

Overrides:

update in class Container

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