de.enough.polish.ui.containerviews
Class CenterNavigationContainerView

java.lang.Object
  de.enough.polish.ui.ItemView
      de.enough.polish.ui.ContainerView
          de.enough.polish.ui.containerviews.CenterNavigationContainerView

All Implemented Interfaces:

Serializable

public class CenterNavigationContainerView
extends ContainerView

Shows the available items of a Container in a horizontal list.

Apply this view by specifying "view-type: horizontal;" in your polish.css file.

Copyright Enough Software 2007 - 2008

Author:

Andre Schmidt

Field Summary

Fields inherited from class de.enough.polish.ui.ContainerView

allowCycling, allowsAutoTraversal, allowsDirectSelectionByPointerEvent, appearanceMode, columnsSetting, columnsWidths, EQUAL_WIDTH_COLUMNS, focusedIndex, focusedItem, focusFirstElement, isExpandItems, isHorizontal, isSequentialTraversal, isVertical, leftXOffset, NO_COLUMNS, NORMAL_WIDTH_COLUMNS, numberOfColumns, numberOfRows, parentContainer, restartAnimation, rightXOffset, rowsHeights, STATIC_WIDTH_COLUMNS, topYOffset, yOffset

Fields inherited from class de.enough.polish.ui.ItemView

contentHeight, contentWidth, isFocused, isLayoutCenter, isLayoutRight, layout, paddingHorizontal, paddingVertical, parentItem

Constructor Summary

CenterNavigationContainerView()
Creates a new view

Method Summary

protected void	convertToGrayScale(int[] rgbData)
Style	focusItem(int index, Item item, int direction, Style focusedStyle) Focuses the given item and retrieves the previous style of that item.
protected void	initContent(Item parentItm, int firstLineWidth, int lineWidth) Initialises this item.
protected boolean	isValid(Item parent, Style style) Implementation that are valid only for specific item classes can override this method so that they cannot be accidently attached to unsupported classes.
protected void	paintContent(Container container, Item[] myItems, int x, int y, int leftBorder, int rightBorder, int clipX, int clipY, int clipWidth, int clipHeight, javax.microedition.lcdui.Graphics g) Paints the content of this container view.

Methods inherited from class de.enough.polish.ui.ContainerView

focusItem, focusItem, getItemRelativeY, getNextFocusableItem, getNextItem, getParentRelativeY, getScreen, handleKeyPressed, isInBottomRow, isLayoutExpand, paintContent, paintItem, scroll, setStyle, shiftFocus, showNotify

Methods inherited from class de.enough.polish.ui.ItemView

addFullRepaintRegion, animate, animate, defocus, focus, handleKeyReleased, handlePointerPressed, handlePointerReleased, hideNotify, initContentByParent, notifyItemPressedEnd, notifyItemPressedStart, paintBackground, paintBorder, paintContentByParent, releaseResources, removeItemBackground, removeItemBorder, removeParentBackground, removeParentBorder, removeViewFromParent, requestInit

Methods inherited from class java.lang.Object

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

Constructor Detail

CenterNavigationContainerView

public CenterNavigationContainerView()

Creates a new view

Method Detail

initContent

protected void initContent(Item parentItm,
                           int firstLineWidth,
                           int lineWidth)

Description copied from class: ContainerView

Initialises this item. The implementation needs to calculate and set the contentWidth and contentHeight fields. The style of the focused item has already been set.

Overrides:

initContent in class ContainerView

Parameters:

parentItm - the Container which uses this view, use parent.getItems() for retrieving all items.

firstLineWidth - the maximum width of the first line

lineWidth - the maximum width of any following lines

See Also:

ItemView.contentWidth, ItemView.contentHeight

focusItem

public Style focusItem(int index,
                       Item item,
                       int direction,
                       Style focusedStyle)

Description copied from class: ContainerView

Focuses the given item and retrieves the previous style of that item. The default implementation sets the focusedIndex and focusedItem fields and returns the result of item.focus( focusStyle, direction ). This is a method that is usually called from within the parent Container (in contrast to the other focusItem() methods which forward the call to the parentContainer).

Overrides:

focusItem in class ContainerView

Parameters:

index - the index of the item

item - the item which should be focused

direction - the direction, either Canvas.DOWN, Canvas.RIGHT, Canvas.UP, Canvas.LEFT or 0.

focusedStyle - the new style for the focused item

Returns:

the previous style of the focussed item

convertToGrayScale

protected void convertToGrayScale(int[] rgbData)

paintContent

protected void paintContent(Container container,
                            Item[] myItems,
                            int x,
                            int y,
                            int leftBorder,
                            int rightBorder,
                            int clipX,
                            int clipY,
                            int clipWidth,
                            int clipHeight,
                            javax.microedition.lcdui.Graphics g)

Description copied from class: ContainerView

Paints the content of this container view. This method calls

Overrides:

paintContent in class ContainerView

Parameters:

container - the parent container

myItems - the items that should be painted

x - the left start position

y - the upper start position

leftBorder - the left border, nothing must be painted left of this position

rightBorder - the right border, nothing must be painted right of this position

clipX - absolute horizontal clipping start

clipY - absolute verical clipping start

clipWidth - clipping width

clipHeight - clipping height

g - the Graphics on which this item should be painted.

isValid

protected boolean isValid(Item parent,
                          Style style)

Description copied from class: ItemView

Implementation that are valid only for specific item classes can override this method so that they cannot be accidently attached to unsupported classes. This allows casting without checking the parent item with instanceof in each method, for example. The default implementation just returns true for any case.

Overrides:

isValid in class ContainerView

Parameters:

parent - the parent item

style - the style

Returns:

true when the view can be used for the parent item.