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Class com.micronova.mnfc.IGridPane

java.lang.Object
   |
   +----netscape.application.View
           |
           +----com.micronova.mnfc.IView
                   |
                   +----com.micronova.mnfc.IGridPane

public class IGridPane

extends IView

An IGridPane has a pane index (IGridView defines 9 pane indices: TOPLEFT, TOPCENTER, TOPRIGHT, MIDDLELEFT, MIDDLECENTER, MIDDLERIGHT, BOTTOMLEFT, BOTTOMCENTER, BOTTOMRIGHT) and displays the pane defined by IGridDef's getPaneSubGrid(paneIndex).

IGridPane inherits from IView. It self-delegates DRAW_VIEW and calls IGridDef's drawCell() for each cell after setting up the delegate variables __subGrid, __index, __cellRect, and __cellView. It re-delegates others to IGridDef's delegatePane(). For MOUSE_XXX, it sets up __index to the cell index under mouse (possibly out of range) before calling delegatePane().

Version:

1.01

Author:

Makoto Nagata, MicroNova

__cellRect

Delegate variable: current cell (pixel) rectangle.

__cellView

Delegate variable: current cell view.

__index

Delegate variable: current index.

__subGrid

Delegate variable: current subgrid.

cellUnderMouse

Last cell index under mouse.

cellViewTable

Hashtable that maps index points to cellviews.

hasCellViews

Must be set to true if this IGridPane has cellviews.

iGridDef

IGridDef this IGridPane displays.

iGridView

indexTable

Hashtable that maps cellviews to index points.

paneIndex

Pane Index (IGridView.MIDDLELEFT, etc.)

paneSubGrid

Cached pane subgrid.

xBase

Cached 'base point' in X direction (this pane's relative position in the whole grid defined by IGridDef).

yBase

Cached 'base point' in Y direction (this pane's relative position in the whole grid defined by IGridDef).

IGridPane(IGridDef, int)

Constructs an IGridPane with given IGridDef and paneIndex.

adjustCellIndex(Point)

Adjusts a (possibly out-of-range) index to a valid in-range index.

computeCellRect(Rect, Rect)

Computes cell rectangle for given subGrid.

computeClosureSubGrid(Rect, Rect)

Computes the smallest subgrid that contains given pixel rectangle.

computeInteriorSubGrid(Rect, Rect)

Computes the largest subgrid that is contained in given pixel rectangle.

delegate(int, IView)

IView delegation.

drawCell()

Draws a cell.

getCellView(Point)

Returns the cell view at index p.

getCellViewIndex(View)

Returns the index for a given cell view.

getXIndex(int)

Returns the X index for a position x (requires setup()).

getXIndex(int, int, int)

Returns the X index for a pixel position x0, assuming it is in the range [lowIndex, highIndex].

getXPosition(int)

Returns the x position relative to this IGridPane for an index.

getYIndex(int)

Returns the Y index for a position y (requires setup()).

getYIndex(int, int, int)

Returns the Y index for a position y0, assuming it is in the given range [lowIndex, highIndex]

getYPosition(int)

Returns the y position relative to this IGridPane for an index.

setCellView(Point, View)

Sets cell view at index p.

setIGridDef(IGridDef)

Sets IGridDef.

setup()

Sets up cache variables (and resizes this IGridPane if necessary).

updateCells(Rect)

Updates all the cells in the given subGrid.

updateCellsNow(Rect)

Updates all the cells in the given subGrid immediately.

 public IGridDef iGridDef

IGridDef this IGridPane displays.

 public int paneIndex

Pane Index (IGridView.MIDDLELEFT, etc.)

 public IGridView iGridView

 public boolean hasCellViews

Must be set to true if this IGridPane has cellviews.

 public Hashtable cellViewTable

Hashtable that maps index points to cellviews.

 public Hashtable indexTable

Hashtable that maps cellviews to index points. This is not allocated until getCellViewIndex() is called.

 public final Rect __subGrid

Delegate variable: current subgrid.

 public final Point __index

Delegate variable: current index.

 public final Rect __cellRect

Delegate variable: current cell (pixel) rectangle.

 public View __cellView

Delegate variable: current cell view.

 public final Point cellUnderMouse

Last cell index under mouse.

 protected Rect paneSubGrid

Cached pane subgrid. Set in setup().

 protected int xBase

Cached 'base point' in X direction (this pane's relative position in the whole grid defined by IGridDef). Set in setup().

 protected int yBase

Cached 'base point' in Y direction (this pane's relative position in the whole grid defined by IGridDef). Set in setup().

 public IGridPane(IGridDef iGridDef,
                  int paneIndex)

Constructs an IGridPane with given IGridDef and paneIndex.

 public View getCellView(Point p)

Returns the cell view at index p. Returns null if no cell view is defined.

 public Point getCellViewIndex(View cellView)

Returns the index for a given cell view.

 public void setCellView(Point pIndex,
                         View cellView)

Sets cell view at index p. 'cellView' can be null.

 public void setIGridDef(IGridDef iGridDef)

Sets IGridDef.

 public void setup()

Sets up cache variables (and resizes this IGridPane if necessary). An IGridPane's size is always equal to that of the pane it is displaying. This is automatically called in drawView() and updateCells() so it is sually not necessary to call this yourself.

 public int getXIndex(int x0,
                      int lowIndex,
                      int highIndex)

Returns the X index for a pixel position x0, assuming it is in the range [lowIndex, highIndex].

 public int getXIndex(int x)

Returns the X index for a position x (requires setup()).

 public int getYIndex(int y0,
                      int lowIndex,
                      int highIndex)

Returns the Y index for a position y0, assuming it is in the given range [lowIndex, highIndex]

 public int getYIndex(int y)

Returns the Y index for a position y (requires setup()).

 public int getXPosition(int xIndex)

Returns the x position relative to this IGridPane for an index.

 public int getYPosition(int yIndex)

Returns the y position relative to this IGridPane for an index.

 public int adjustCellIndex(Point indexPoint)

Adjusts a (possibly out-of-range) index to a valid in-range index. Also returns an integer flag to indicate whether the original index was in-range or not as follows:

• IGridView.TOPLEFT: x too small, y too small
• IGridView.TOPCENTER: x in range, y too small
• IGridView.TOPRIGHT: x too large, y too small
• IGridView.MIDDLELEFT: x too small, y in range
• IGridView.MIDDLECENTER: x in range, y in range
• IGridView.MIDDLERIGHT: x too large, y in range
• IGridView.BOTTOMLEFT: x too small, y too large
• IGridView.BOTTOMCENTER: x in range, y too large
• IGridView.BOTTOMRIGHT: x too large, y too large

 public void computeCellRect(Rect subGrid,
                             Rect cellRect)

Computes cell rectangle for given subGrid.

 public void computeClosureSubGrid(Rect rect,
                                   Rect subGrid)

Computes the smallest subgrid that contains given pixel rectangle.

 public void computeInteriorSubGrid(Rect rect,
                                    Rect subGrid)

Computes the largest subgrid that is contained in given pixel rectangle.

 public void updateCells(Rect subGrid)

Updates all the cells in the given subGrid.

 public void updateCellsNow(Rect subGrid)

Updates all the cells in the given subGrid immediately.

 public void drawCell()

Draws a cell.

 public void delegate(int flag,
                      IView iView)

IView delegation.

Overrides:

delegate in class IView

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