/*

    File: StrokeAccumulationPane.h

    Contains: Declaration of StrokeAccumulationPane class which manages content in a

    single tab control content area, and registration function for HIView callback.

    Version: InkSample 1.1

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        may be infringed by your derivative works or by other works in which the Apple

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        The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

        WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

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        PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

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*/

#ifndef InkSample_STROKEACCUMULATIONPANE

#define InkSample_STROKEACCUMULATIONPANE

#include <Carbon/Carbon.h>

#include <vector>

// -----------------------------------------------------------------------------

// Control Types

// -----------------------------------------------------------------------------

extern CFStringRef gStrokeAccumulationPaneClassID;

// -----------------------------------------------------------------------------

// Registration

// -----------------------------------------------------------------------------

OSStatus StrokeAccumulationPaneRegister( void );

class StrokeAccumulationPane

{

public:

    class CISInkPoint

    {

    public:

        CISInkPoint( HIPoint& hiPt, TabletPointRec tabletData, UInt32 keyMods );

        CISInkPoint( const CISInkPoint& orig );

        CISInkPoint& operator=( const CISInkPoint& orig );

        Boolean operator<( const CISInkPoint& orig );

    InkPoint fInkPointRec;

    };

    StrokeAccumulationPane( HIViewRef parentInstance );

    virtual ~StrokeAccumulationPane( void );

    virtual OSStatus Initialize( EventRef inEvent );

    virtual OSStatus Draw( EventRef inEvent );

    virtual OSStatus Activate( EventRef inEvent );

    virtual OSStatus Deactivate( EventRef inEvent );

    Boolean IsParentVisible() { return IsControlVisible( fParentInstance ) ; }

    Boolean IsMyWindowActive() { return ( fHIViewWindow != NULL ) && IsWindowActive( fHIViewWindow ); };

    WindowRef GetWindow() { return fHIViewWindow; };

    // init static class globals

    static void StaticInit();

    // The StrokeAccumulationPane uses a text view to display results of ink

    // input and gestures.  The text view interface is abstracted

    // by using only this API to interact with the text view.

    OSStatus TextViewCreate( WindowRef window, Rect& bounds );

    void TextViewSetVisibility( Boolean vis );

    void TextViewDraw();

    void TextViewFocus( Boolean focus );

    OSStatus TextViewAppendCFString( CFStringRef cfString );

    OSStatus TextViewAppendString( char* string, CFIndex len );

    OSStatus TextViewReplaceCFString( CFStringRef cfString, UInt32 start = kTXNUseCurrentSelection, UInt32 end = kTXNUseCurrentSelection );

    OSStatus TextViewReplaceString( char* str, CFIndex len, UInt32 start = kTXNUseCurrentSelection, UInt32 end = kTXNUseCurrentSelection );

    OSStatus TextViewProcessHICommand( const HICommand& cmd );

    OSStatus TextViewKeyDown( UniChar uChar );

    OSStatus TextViewSetSelectionOffsets( UInt32 start, UInt32 end );

    OSStatus TextViewSetOffsetWithHIPoint( HIPoint pt );

    OSStatus TextViewSetOffsetWithQDPoint( Point pt );

    OSStatus TextViewHIPointToOffset( HIPoint& hiPoint, UInt32& offset );

    OSStatus TextViewQDPointToOffset( Point& pt, UInt32& offset );

    OSStatus TextViewJoin( HIRect bounds );

    // The StrokeAccumulationPane uses an ink view area to display

    // tablet generated strokes.  The ink view interface is abstracted

    // by using only this API to interact with the ink view.

    OSStatus MyInkViewInvalidate();

    OSStatus MyInkViewDrawPhrase();

    OSStatus MyInkViewDrawPoint( HIPoint pt, SInt16 pressure );

    void MyInkViewTerminateInking();

    OSStatus MyInkViewErase();

    Boolean MyInkViewPointInInkView( Point qdPoint );

    OSStatus UISignalInkEvent( UInt32 signalInkEventKind );

protected:

    // CARBON EVENT HANDLER RELATED METHODS

    virtual OSStatus InstallTextInputHandlersOnTarget( EventTargetRef targetRef );

    virtual OSStatus InstallInkHandlersOnTarget( EventTargetRef targetRef );

    virtual OSStatus InstallMenuHandlersOnTarget( EventTargetRef targetRef );

    virtual OSStatus InstallTabletHandlersOnTarget( EventTargetRef targetRef );

    // STATIC

    static OSStatus MenuEventHandler( EventHandlerCallRef inHandlerRef,

                                      EventRef inEvent, void *userData );

    static OSStatus TextInputHandler( EventHandlerCallRef inHandlerRef,

                                      EventRef inEvent, void *userData );

    static OSStatus InkHandler( EventHandlerCallRef inCallRef,

                                EventRef inEvent, void* inUserData );

    static OSStatus TabletEventHandler( EventHandlerCallRef inCallRef,

                                EventRef inEvent, void* inUserData );

    virtual OSStatus ProcessHICommand( const HICommand& cmd );

    virtual OSStatus HandleInkTextEvent( EventHandlerCallRef inCallRef, EventRef inEvent );

    virtual OSStatus HandleGestureEvent( EventHandlerCallRef inCallRef, EventRef inEvent );

    virtual OSStatus HandleTabletPoint( EventHandlerCallRef inCallRef, EventRef inEvent, UInt32 mouseEventKind );

    virtual OSStatus HandleMouseDown( EventHandlerCallRef inCallRef, EventRef inEvent, UInt32 mouseEventKind );

    virtual OSStatus AddPoint( HIPoint location, TabletPointRec tabletPt, UInt32 modifiers );

    virtual OSStatus AddStroke();

    HIViewRef fParentInstance; // this is the userpane control in the window that

                               // specifies our bounds

    WindowRef fHIViewWindow;

    WindowRef fWindowRef;

    EventHandlerRef fTabletEventHandler;    

    EventHandlerRef fMenuEventHandler;

    EventHandlerRef fTextInputHandler;

    EventHandlerRef fInkEventHandler;

    Boolean fInkingStroke;

private:

    TXNObject fMLTEObj;

    Rect fInkAreaBounds;

    std::vector<StrokeAccumulationPane::CISInkPoint>fInkPointsArray;

    std::vector<StrokeAccumulationPane::CISInkPoint>fInkPointsToDrawArray;

};

#endif // InkSample_STROKEACCUMULATIONPANE