InputPanel

AboutToHide AboutToShow CanAccept CanAcceptCoupon Draw DrawHighlight DrawKeys

HitTestStandardKeys InternalMode KeyTyped NextKeyboardInput RequestCaps Shift Touch

Attributes

ButtonImage IsNativePanel Keyboard Mode

Fields

Define Class InputPanel;
    inherits from Viewable;
    abstract;

    field keyboard:         Keyboard, getter;
        // The keyboard that contains this InputPanel
    field kbdFlags:         UnsignedShort;
        // internal flags of the InputPanel.  The flag masks are defined in Utilities.h.

    field isNativePanel:    Boolean, getter;

    field backgroundImage:  Image;
    field buttonImage:      Image, getter;
        // image for PanelChangeButton
    field keytopImageList:  ObjectList;
    field rowCharsList:     ObjectList;
    field keyDownQueue:     DataList;
    field ownTool:          Tool;

    // These fields contains the information about special keys (non standard shape keys) that is 
    // not handled by rowCharsList.
    field numberOfSpecialKeys:  UnsignedShort;
    field boxList:          IntegerList;
    field typeList:         ShortIntegerList;
    field dataList:         ShortIntegerList;

    attribute IsNativePanel: Boolean, readOnly;
    operation InternalMode(forHitTest: Boolean): UnsignedShort, noMethod;
        // InputPanel has its own internal modes.
        // ex) RomanPanel has two internal modes, shifted and non-shifted.
    attribute Mode: Signed, safe;
    operation RequestCaps(caps: Boolean); 
        // do nothing in default

    attribute ButtonImage:  Image, readOnly;
    attribute Keyboard:     Keyboard, readOnly;

    operation HitTestStandardKeys(probe: Dot; var highlightBox: Box): Character;
        // return zero in default, overwritten in decendants.
    operation Shift(), safe;
    operation KeyTyped(key: Character);
    operation DrawKeys();
    operation DrawHighlight();

    overrides Draw;
    overrides Touch;
    overrides AboutToShow, AboutToHide;
    
    operation NextKeyboardInput(var keyCode: Character; var highlightBox: Box; anyKey: Boolean): TouchInput, intrinsic;

    overrides CanAccept;
    overrides CanAcceptCoupon;
end class;