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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<h2>/StrokeAccumulationPane.cpp</h2>
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<pre class="sourcecodebox">/*
File: StrokeAccumulationPane.cpp
Contains: Defintion of StrokeAccumulationPane class which manages content in a single
tab control content area, and registration & callback functions for HIView model.
Version: InkSample 1.1
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under Apple's
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
*/
#include <Carbon/Carbon.h>
#include <iostream> // for std::cerr output
#include "InkDefines.h"
#include "StrokeAccumulationPane.h"
#include "MLTEUtils.h"
#include "InkSampleUtils.h"
extern UInt32 gInkAppWritingMode;
// -----------------------------------------------------------------------------
// ClassID
// -----------------------------------------------------------------------------
CFStringRef gStrokeAccumulationPaneClassID = CFSTR( "com.apple.inksample.strokeaccumulation" );
// -----------------------------------------------------------------------------
// ClassRef
// -----------------------------------------------------------------------------
static HIObjectClassRef gStrokeAccumulationPaneHIObjClassRef = NULL;
// -----------------------------------------------------------------------------
// Internal C Function Prototypes
// -----------------------------------------------------------------------------
static pascal OSStatus
StrokeAccumulationPaneEventHandler( EventHandlerCallRef inCallRef,
EventRef inEvent, void* inUserData );
static OSStatus
StrokeAccumulationPaneConstruct( EventHandlerCallRef inCallRef,
EventRef inEvent );
// -----------------------------------------------------------------------------
// Class Constructor - more important initialization occurs in Initialize
// -----------------------------------------------------------------------------
StrokeAccumulationPane::StrokeAccumulationPane( HIViewRef parentInstance )
{
fTextInputHandler = NULL;
fInkEventHandler = NULL;
fMenuEventHandler = NULL;
//fMouseEventHandler = NULL;
fTabletEventHandler = NULL;
fParentInstance = parentInstance;
fHIViewWindow = NULL;
}
// -----------------------------------------------------------------------------
// Class Destructor
// -----------------------------------------------------------------------------
StrokeAccumulationPane::~StrokeAccumulationPane( void )
{
if ( fTabletEventHandler != NULL )
{
verify_noerr( ::RemoveEventHandler( fTabletEventHandler ) );
fTextInputHandler = NULL;
}
if ( fMenuEventHandler != NULL )
{
verify_noerr( RemoveEventHandler( fMenuEventHandler ) );
fMenuEventHandler = NULL;
}
if ( fInkEventHandler != NULL )
{
verify_noerr( RemoveEventHandler( fInkEventHandler ) );
fInkEventHandler = NULL;
}
if ( fTextInputHandler != NULL )
{
verify_noerr( RemoveEventHandler( fTextInputHandler ) );
fTextInputHandler = NULL;
}
if( fMLTEObj != NULL )
TXNDeleteObject( fMLTEObj );
// text view will auto dispose when fTXNObj goes out of context & destructs
return;
}
// -----------------------------------------------------------------------------
// Initialize [PUBLIC]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::Initialize( EventRef inEvent )
{
OSStatus status = paramErr;
Rect userPaneBounds;
Rect drawPaneBounds = {0,0,0,0};
Rect textViewBounds;
Rect windowBounds;
ControlID drawingPaneID = { 'DrAw', 0 };
ControlRef drawingPane = NULL;
fHIViewWindow = NULL;
fMLTEObj = NULL;
fInkingStroke = false;
// the parent control is the user pane control
// created in IB in the nib
fHIViewWindow = GetControlOwner( fParentInstance );
fWindowRef = FrontNonFloatingWindow();
// we use the parent control to define the bounds of this pane
GetControlBounds( fParentInstance, &userPaneBounds );
GetWindowPortBounds( fHIViewWindow, &windowBounds );
status = GetControlByID( fHIViewWindow, &drawingPaneID, &drawingPane );
if( status == noErr )
GetControlBounds( drawingPane, &drawPaneBounds );
else
status = noErr;
ActivateControl( fParentInstance );
status = this->InstallMenuHandlersOnTarget( GetWindowEventTarget(fHIViewWindow) );
require_noerr( status, Initialize_err );
status = this->InstallInkHandlersOnTarget( GetWindowEventTarget(fHIViewWindow) ); // on window
require_noerr( status, Initialize_err );
status = this->InstallTabletHandlersOnTarget( GetWindowEventTarget(fHIViewWindow) );
require_noerr( status, Initialize_err );
// text view will auto init
// Init Textension occurs when fTXNObj constructor is first called
// mlte object is smaller than userpane bounds
textViewBounds.top = userPaneBounds.top;
textViewBounds.bottom = userPaneBounds.bottom;
textViewBounds.left = userPaneBounds.left;
textViewBounds.right = userPaneBounds.right;
status = this->TextViewCreate( fHIViewWindow, textViewBounds );
if( drawPaneBounds.top != drawPaneBounds.bottom )
fInkAreaBounds = drawPaneBounds;
else
{
fInkAreaBounds.top = userPaneBounds.top;
fInkAreaBounds.bottom = userPaneBounds.bottom;
fInkAreaBounds.left = textViewBounds.right + 20;
fInkAreaBounds.right = fInkAreaBounds.left + (textViewBounds.right-textViewBounds.left);
}
Initialize_err:
return status;
}
OSStatus
StrokeAccumulationPane::Draw( EventRef inEvent )
{
this->TextViewDraw();
this->MyInkViewDrawPhrase();
if( fHIViewWindow != NULL )
{
CGrafPtr port = GetWindowPort( this->GetWindow() );
QDFlushPortBuffer( port, NULL );
}
return noErr;
}
OSStatus
StrokeAccumulationPane::Deactivate( EventRef inEvent )
{
this->TextViewFocus( false );
this->MyInkViewErase();
return noErr;
}
OSStatus
StrokeAccumulationPane::Activate( EventRef inEvent )
{
this->TextViewFocus( true );
return noErr;
}
// -----------------------------------------------------------------------------
// Initialize [PUBLIC] - init any class globals here?
// -----------------------------------------------------------------------------
void
StrokeAccumulationPane::StaticInit()
{
return;
};
#pragma mark ---
#pragma mark CARBON EVENTS
#pragma mark ---
// -----------------------------------------------------------------------------
// InstallMenuHandlersOnTarget [PRIVATE]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::InstallMenuHandlersOnTarget( EventTargetRef targetRef )
{
static const EventTypeSpec sAppEvents[] =
{
{ kEventClassCommand, kEventCommandProcess },
{ kEventClassCommand, kEventCommandUpdateStatus }
};
OSStatus status = InstallEventHandler( targetRef, StrokeAccumulationPane::MenuEventHandler,
GetEventTypeCount( sAppEvents ),
sAppEvents, this, &fMenuEventHandler );
return status;
}
// -----------------------------------------------------------------------------
// InstallTextInputHandlersOnTarget [PRIVATE]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::InstallTextInputHandlersOnTarget( EventTargetRef targetRef )
{
static const EventTypeSpec kTextInputEvents[] =
{
{ kEventClassCommand, kEventCommandProcess },
{ kEventClassCommand, kEventCommandUpdateStatus },
{ kEventClassKeyboard, kEventRawKeyDown },
{ kEventClassControl, kEventControlVisibilityChanged },
{ kEventClassService, kEventServiceGetTypes },
{ kEventClassService, kEventServiceCopy },
{ kEventClassService, kEventServicePaste }
};
OSStatus status = InstallEventHandler( targetRef, StrokeAccumulationPane::TextInputHandler,
GetEventTypeCount( kTextInputEvents ),
kTextInputEvents, this, &fTextInputHandler );
require_noerr( status, InstallTextInputHandlersOnTarget_err );
InstallTextInputHandlersOnTarget_err:
return status;
}
OSStatus
StrokeAccumulationPane::InstallInkHandlersOnTarget( EventTargetRef targetRef )
{
static const EventTypeSpec kInkEvents[] =
{
{ kEventClassInk, kEventInkText },
{ kEventClassInk, kEventInkGesture }
};
OSStatus status = InstallEventHandler( targetRef, StrokeAccumulationPane::InkHandler,
GetEventTypeCount( kInkEvents ),
kInkEvents, this, &fInkEventHandler );
require_noerr( status, InstallInkHandlersOnTarget_err );
InstallInkHandlersOnTarget_err:
return status;
}
// -----------------------------------------------------------------------------
// InstallTabletHandlersOnTarget [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::InstallTabletHandlersOnTarget( EventTargetRef targetRef )
{
static const EventTypeSpec sMouseEvents[] =
{
{ kEventClassMouse, kEventMouseDown },
{ kEventClassMouse, kEventMouseUp },
{ kEventClassMouse, kEventMouseMoved },
{ kEventClassMouse, kEventMouseDragged }
};
OSStatus status = ::InstallEventHandler( targetRef, StrokeAccumulationPane::TabletEventHandler,
GetEventTypeCount( sMouseEvents ),
sMouseEvents, this, &fTabletEventHandler );
return status;
}
// -----------------------------------------------------------------------------
// MenuEventHandler [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::MenuEventHandler( EventHandlerCallRef inHandlerRef,
EventRef inEvent, void* userData )
{
OSStatus status = eventNotHandledErr;
HICommand hiCommand;
StrokeAccumulationPane* thisPane = (StrokeAccumulationPane*)userData;
UInt32 eventKind = GetEventKind( inEvent );
require_action( thisPane->IsParentVisible(), NotFocus_err, status = eventNotHandledErr );
switch ( GetEventClass( inEvent ) )
{
case kEventClassCommand:
{
status = GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand,
NULL, sizeof( HICommand ), NULL, (void *) &hiCommand );
require_noerr( status, HandleCommandEvent_err );
if( eventKind == kEventProcessCommand
&& ( hiCommand.attributes & kHICommandFromMenu ) == true )
status = thisPane->ProcessHICommand( hiCommand );
}
break;
default:
status = eventNotHandledErr;
break;
}
HandleCommandEvent_err:
NotFocus_err:
#if DEBUG_ERROR_LOGS
if( status != eventNotHandledErr )
std::cerr << "StrokeAccumulationPane::MenuEventHandler got status: " << status << std::endl;
#endif
return status;
}
// -----------------------------------------------------------------------------
// TextInputHandler [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::TextInputHandler( EventHandlerCallRef inHandlerRef,
EventRef inEvent, void* userData )
{
OSStatus status = eventNotHandledErr;
StrokeAccumulationPane* thisPane = (StrokeAccumulationPane*)userData;
require_action( thisPane->IsParentVisible(), NotFocus_err, status = eventNotHandledErr );
NotFocus_err:
return eventNotHandledErr;
}
// -----------------------------------------------------------------------------
// TabletEventHandler [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::TabletEventHandler( EventHandlerCallRef inHandlerRef,
EventRef inEvent, void* userData )
{
OSStatus status = eventNotHandledErr;
StrokeAccumulationPane* thisPane = (StrokeAccumulationPane*)userData;
UInt32 tabletEventType = 0;
UInt32 mouseEventKind = 0;
// don't do anything if this pane is not the front most active
require_action( thisPane->IsMyWindowActive(), NotFocus_err, status = eventNotHandledErr );
require_action( thisPane->IsParentVisible(), NotFocus_err, status = eventNotHandledErr );
// must be a mouse event
require( GetEventClass( inEvent ) == kEventClassMouse, NotTabletEvent_err );
// what kind of tablet event?
status = GetEventParameter( inEvent, kEventParamTabletEventType, typeUInt32,
NULL, sizeof(UInt32), NULL, &tabletEventType );
require_action( status == noErr, CantGetTabletEventType_err, status = eventNotHandledErr );
// reset status to not handled
status = eventNotHandledErr;
// Is this mouse event from a tablet?
if( tabletEventType == kEventTabletPoint )
{
mouseEventKind = GetEventKind( inEvent );
switch( mouseEventKind )
{
// these are the event kinds that indicate we're inking or ending inking
case kEventMouseDown:
case kEventMouseUp:
case kEventMouseDragged:
status = thisPane->HandleTabletPoint( inHandlerRef, inEvent, mouseEventKind );
break;
default:
// any other kind - like mouse moved - we won't handle
status = eventNotHandledErr;
break;
}
}
// is this a mouse down event from the actual mouse - not tablet?
else if( mouseEventKind == kEventMouseDown )
{
// non tablet mouse down events
status = thisPane->HandleMouseDown( inHandlerRef, inEvent, mouseEventKind );
}
CantGetTabletEventType_err:
NotTabletEvent_err:
#if DEBUG_ERROR_LOGS
if( status != eventNotHandledErr )
std::cerr << "StrokeAccumulationPane::TabletEventHandler got status: " << status << std::endl;
else
std::cerr << "StrokeAccumulationPane::TabletEventHandler got status: eventNotHandledErr" << std::endl;
#endif
NotFocus_err:
return status;
}
// -----------------------------------------------------------------------------
// InkHandler [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::InkHandler( EventHandlerCallRef inCallRef, EventRef inEvent,
void* inUserData )
{
OSStatus status = eventNotHandledErr;
StrokeAccumulationPane* thisPane = (StrokeAccumulationPane*)inUserData;
#if DEBUG_EVENT_TRACING
std::cerr << "Call StrokeAccumulationPane::InkHandler..." << std::endl;
#endif
require_action( thisPane->IsParentVisible(), NotFocus_err, status = eventNotHandledErr );
switch( GetEventKind( inEvent ) )
{
case kEventInkText:
{
status = thisPane->HandleInkTextEvent( inCallRef, inEvent );
}
break;
case kEventInkGesture:
{
status = thisPane->HandleGestureEvent( inCallRef, inEvent );
}
break;
}
NotFocus_err:
#if DEBUG_ERROR_LOGS
if( status == eventNotHandledErr )
std::cerr << "StrokeAccumulationPane::InkHandler won't handle the event" << std::endl;
#endif
return status;
}
// -----------------------------------------------------------------------------
// HandleInkTextEvent [PRIVATE]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::HandleInkTextEvent( EventHandlerCallRef inCallRef, EventRef inEvent )
{
OSStatus status = noErr;
InkTextRef inkRef = NULL;
CFStringRef cfString = NULL;
Boolean isShortCut = false;
#if DEBUG_EVENT_TRACING
std::cerr << "kEventInkText event..." << std::endl;
#endif
status = GetEventParameter( inEvent, kEventParamInkKeyboardShortcut, typeBoolean,
NULL, sizeof(Boolean), NULL, &isShortCut );
if( isShortCut )
{
this->UISignalInkEvent( kMyInkShortcutEventSignal );
return eventNotHandledErr;
}
this->UISignalInkEvent( kMyInkTextEventSignal );
status = GetEventParameter( inEvent, kEventParamInkTextRef, typePtr,
NULL, sizeof(Ptr), NULL, &inkRef );
require_noerr( status, CantGetInkRef );
CFRetain( inkRef );
cfString = InkTextCreateCFString( inkRef, 0 );
require_action( cfString != NULL, CantGetString, status = eventNotHandledErr );
status = this->TextViewAppendCFString( cfString );
require_noerr( status, CantSetString );
// auto space between words
this->TextViewAppendString( " ", 1 );
CantSetString:
if( cfString != NULL )
CFRelease( cfString );
CantGetString:
CantGetInkRef:
if (status==noErr)
return noErr;
else
return eventNotHandledErr;
}
// -----------------------------------------------------------------------------
// HandleGestureEvent [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::HandleGestureEvent( EventHandlerCallRef inCallRef, EventRef inEvent )
{
OSErr status = noErr;
UInt32 gestureKind = NULL;
HICommand hiCmd;
HIRect bounds;
Boolean hasHotSpot;
HIPoint hotspot;
status = GetEventParameter( inEvent, kEventParamInkGestureKind,
typeUInt32, NULL, sizeof(UInt32),
NULL, &gestureKind );
require_noerr( status, CantGetGestureKind );
this->UISignalInkEvent( gestureKind );
status = GetEventParameter( inEvent, kEventParamInkGestureBounds,
typeHIRect, NULL, sizeof(HIRect),
NULL, &bounds );
require_noerr( status, CantGetGestureBounds );
status = GetEventParameter( inEvent, kEventParamInkGestureHotspot,
typeHIPoint, NULL, sizeof(HIPoint),
NULL, &hotspot );
hasHotSpot = (status == noErr);
switch( gestureKind )
{
/* Context-independent (non-tentative) gestures */
case kInkGestureUndo: //'undo'
hiCmd.commandID = kHICommandUndo;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureCut: //'cut '
hiCmd.commandID = kHICommandCut;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureCopy: //'copy'
hiCmd.commandID = kHICommandCopy;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGesturePaste: //'past'
hiCmd.commandID = kHICommandPaste;
if( hasHotSpot == true )
{
status = this->TextViewSetOffsetWithHIPoint( hotspot );
}
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureClear: //'cler'
hiCmd.commandID = kHICommandClear;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureSelectAll: //'sall'
hiCmd.commandID = kHICommandSelectAll;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureEscape: //'esc '
hiCmd.commandID = kHICommandCancel;
status = TextViewProcessHICommand( hiCmd );
break;
case kInkGestureTab: //'tab '
{
if( hasHotSpot == true )
{
status = this->TextViewSetOffsetWithHIPoint( hotspot );
}
// insert at the current insertion point, or replace the current selection, with a tab
status = TextViewReplaceString( "\t", 1, kTXNUseCurrentSelection, kTXNUseCurrentSelection );
}
break;
case kInkGestureLeftSpace: //'lspc'
case kInkGestureRightSpace: //'rspc'
{
if( hasHotSpot == true )
{
status = this->TextViewSetOffsetWithHIPoint( hotspot );
}
// insert at the current insertion point, or replace the current selection, with a
// space. We're not distinguishing between left or right spaces.
status = TextViewReplaceString( " ", kTXNUseCurrentSelection, kTXNUseCurrentSelection );
}
break;
case kInkGestureLeftReturn: //'lrtn'
case kInkGestureRightReturn: //'rrtn'
{
if( hasHotSpot == true )
{
status = this->TextViewSetOffsetWithHIPoint( hotspot );
}
// insert at the current insertion point, or replace the current selection, with a
// return. We're not distinguishing between left or right returns.
status = TextViewReplaceString( "\r", kTXNUseCurrentSelection, kTXNUseCurrentSelection );
}
break;
case kInkGestureDelete: //'del '
hiCmd.commandID = kHICommandClear;
// maybe check context and set selection here based on bounding box
status = TextViewProcessHICommand( hiCmd );
break;
/* Context-dependent (tentative) gestures*/
case kInkGestureJoin: //'join'
status = TextViewJoin( bounds );
break;
default:
break;
}
CantGetGestureBounds:
CantGetGestureKind:
if (status==noErr)
return noErr;
else
return eventNotHandledErr;
}
// -----------------------------------------------------------------------------
// HandleTabletPoint [PROTECTED] - do ink data collection or phrase termination
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::HandleTabletPoint( EventHandlerCallRef inCallRef, EventRef inEvent, UInt32 mouseEventKind )
{
#pragma unused( inCallRef )
OSStatus status = eventNotHandledErr;
Point qdGlobalPoint;
GrafPtr savePort;
// where is the mouse?
status = GetEventParameter(inEvent, kEventParamMouseLocation,
typeQDPoint, NULL, sizeof(Point),
NULL, (void*) &qdGlobalPoint);
require_action( status == noErr, TabletEvent_err, status = eventNotHandledErr );
// Move the point into local coordinates, from now on this is really qdLOCALPoint...
GetPort( &savePort );
SetPortWindowPort( this->GetWindow() );
GlobalToLocal( &qdGlobalPoint );
SetPort( savePort );
// reset status, we're not handing anything yet
status = eventNotHandledErr;
// is the mouse inside the bounds of my ink view?
if( MyInkViewPointInInkView( qdGlobalPoint ) )
{
// did the mouse just touch down - indicating the start of a stroke?
if( mouseEventKind == kEventMouseDown )
fInkingStroke = true; // start inking stroke
// we expect kEventMouseDown, kEventMouseUp, or kEventMouseDragged
// We collect ink data for mouse down and mouse drag, and end collection
// on mouse up.
// Is this not mouse up? and if so are we in the middle of inking?
if( mouseEventKind != kEventMouseUp && fInkingStroke == true )
{
HIPoint location;
TabletPointRec tabletPt;
UInt32 modifiers;
// Get the full-resolution, floating point mouse location
status = GetEventParameter( inEvent, kEventParamMouseLocation,
typeHIPoint, NULL /*outActualType*/, sizeof( location ),
NULL /*outActualSize*/, &location );
require_noerr( status, TabletEvent_err );
// Get the tablet data record
status = GetEventParameter(inEvent, kEventParamTabletPointRec,
typeTabletPointRec, NULL, sizeof(TabletPointRec),
NULL, (void*) &tabletPt);
require_noerr( status, TabletEvent_err );
// Get any keyboard modifiers in use
status = GetEventParameter( inEvent, kEventParamKeyModifiers, typeUInt32,
NULL, sizeof( modifiers ), NULL, &modifiers );
require_noerr( status, TabletEvent_err );
// Add all the above gathered InkPoint data into our inkpoint array
AddPoint( location, tabletPt, modifiers );
// inval and draw our ink view
status = this->MyInkViewInvalidate();
// instantly draw this point data
this->MyInkViewDrawPoint( location, tabletPt.pressure);
}
// Above condition was false so this is a mouse up?
// Were we in the middle of inking at the time?
// If so, we want to terminate stroke data collection and add the
// stroke to the current ink phrase
else if( fInkingStroke == true )
{
AddStroke(); // this will also clear & reset the array of inkpoint data
fInkingStroke = false; // not inking any more
status = noErr; // yes we handled this event
}
}
else // The mouse is not inside the Ink View bounds
{
// Were we inking? Terminate stroke if so
if( fInkingStroke == true )
{
AddStroke(); // this will also clear & reset the array of inkpoint data
fInkingStroke = false; // not inking any more
status = noErr; // yes we handled this event
}
// If this was a mouse down, maybe it is on our button to do ink
// phrase termination?
if( mouseEventKind == kEventMouseDown )
{
ControlRef controlHit = NULL;
short part = 0;
ControlID controlID = { 0,0 };
// did we hit a control?
controlHit = FindControlUnderMouse( qdGlobalPoint, this->GetWindow(), &part);
require_action( controlHit != NULL, TabletEvent_err, status = eventNotHandledErr );
status = GetControlID( controlHit, &controlID );
require_action( status == noErr, TabletEvent_err, status = eventNotHandledErr );
// is the control our terminate ink phrase button?
if( controlID.signature == kMyInkPhraseTerminateForStroke )
{
this->MyInkViewTerminateInking();
return noErr;
}
// is the control hit our erase custom ink area button?
else if( controlID.signature == kMyEraseCustomInkButton )
{
this->MyInkViewErase();
return noErr;
}
// some other control was hit
// we won't handle it
else
status = eventNotHandledErr;
}
}
TabletEvent_err:
return status;
}
// -----------------------------------------------------------------------------
// HandleMouseDown [PROTECTED]
// -----------------------------------------------------------------------------
OSStatus
StrokeAccumulationPane::HandleMouseDown( EventHandlerCallRef inCallRef, EventRef inEvent, UInt32 mouseEventKind )
{
OSStatus status = eventNotHandledErr;
Point qdGlobalPoint; // the local
GrafPtr savePort;
status = GetEventParameter(inEvent, kEventParamMouseLocation,
typeQDPoint, NULL, sizeof(Point),
NULL, (void*) &qdGlobalPoint);
require_action( status == noErr, MouseDownEvent_err, status = eventNotHandledErr );
// Move the point into local coordinates, from now on this is really qdLOCALPoint...
GetPort( &savePort );
SetPortWindowPort( this->GetWindow() );
GlobalToLocal( &qdGlobalPoint );
SetPort( savePort );
status = eventNotHandledErr;
switch( mouseEventKind )
{
case kEventMouseDown:
{
ControlRef controlHit = NULL;
short part = 0;
controlHit = FindControlUnderMouse( qdGlobalPoint, this->GetWindow(), &part);
if( controlHit != NULL )
{
ControlID controlID = { 0,0 };
status = GetControlID( controlHit, &controlID );
if( status == noErr )
{
// is the control our terminate ink phrase button?
if( controlID.signature == kMyInkPhraseTerminateForStroke )
{
this->MyInkViewTerminateInking();
return noErr;
}
// is the control hit our erase custom ink area button?
else if( controlID.signature == kMyEraseCustomInkButton )
{
this->MyInkViewErase();
return noErr;
}
// some other control was hit
// we won't handle it
status = eventNotHandledErr;
}
else
status = eventNotHandledErr;
}
}
break;
default:
status = eventNotHandledErr;
}
MouseDownEvent_err:
return status;
}
// -----------------------------------------------------------------------------
// AddPoint [PROTECTED] - Add the InkPoint data in our array to the current ink phrase