AppearanceSample-5/TWindow.cp

/*
    File:       TWindow.cp
    
    Version:    Mac OS X
 
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    Copyright © 2000-2001 Apple Computer, Inc., All Rights Reserved
*/
 
#include <Carbon/Carbon.h>
 
#include "TWindow.h"
 
const EventTypeSpec kEvents[] =
{ 
    { kEventClassWindow, kEventWindowClose },
    { kEventClassWindow, kEventWindowActivated },
    { kEventClassWindow, kEventWindowDeactivated },
    { kEventClassWindow, kEventWindowHandleActivate },
    { kEventClassWindow, kEventWindowHandleDeactivate },
    { kEventClassWindow, kEventWindowDrawContent },
    { kEventClassWindow, kEventWindowBoundsChanged },
    { kEventClassWindow, kEventWindowGetIdealSize },
    { kEventClassCommand, kEventCommandProcess },
    { kEventClassCommand, kEventCommandUpdateStatus }
};
 
// Our base class for creating a Mac OS window which is Carbon Event-savvy.
 
TWindow::TWindow()
{
    fWindow = NULL;
    fPort = NULL;
    fHandler = NULL;
}
 
TWindow::TWindow( WindowClass inClass, WindowAttributes inAttributes, const Rect& inBounds )
{
    OSStatus        err;
    WindowRef       window;
    
    err = CreateNewWindow(  inClass,
                            inAttributes,
                            &inBounds,
                            &window );
 
    InitWithPlatformWindow( window );                           
}
 
TWindow::TWindow( CFStringRef nibName, CFStringRef name )
{
    OSStatus        err;
    WindowRef       window;
    IBNibRef        ref;
    
    err = CreateNibReference( nibName, &ref );
    if ( err == noErr )
    {
        err = CreateWindowFromNib( ref, name, &window );
        DisposeNibReference( ref );
    }
    
    InitWithPlatformWindow( window );                           
}
 
 
TWindow::TWindow( WindowRef window )
{
    InitWithPlatformWindow( window );
}
 
void
TWindow::InitWithPlatformWindow( WindowRef window )
{
    WindowClass     theClass;
    
    fWindow = window;
    fPort = GetWindowPort( fWindow );
 
    SetWindowKind( fWindow, 2001 );
    SetWRefCon( fWindow, (long)this );
    
    ChangeWindowAttributes( fWindow, kWindowStandardHandlerAttribute, 0 );
    InstallWindowEventHandler( fWindow, GetEventHandlerProc(), GetEventTypeCount( kEvents ),
                        kEvents, this, &fHandler );
 
    GetWindowClass( GetWindowRef(), &theClass );
    if ( theClass == kDocumentWindowClass )
        ChangeWindowAttributes( fWindow, kWindowInWindowMenuAttribute, 0 );
}
 
TWindow::~TWindow()
{   
    if ( fWindow )
        DisposeWindow( fWindow );
}
 
void
TWindow::PlatformWindowDisposed()
{
    fWindow = NULL;
    fPort = NULL;
}
 
#pragma mark -
 
void
TWindow::Close()
{
    Hide();
    delete this;
}
 
CGrafPtr
TWindow::GetPort() const
{
    return fPort;
}
 
WindowRef
TWindow::GetWindowRef() const
{
    return fWindow;
}
 
void
TWindow::SetTitle( CFStringRef inTitle )
{
    SetWindowTitleWithCFString( fWindow, inTitle );
}
 
CFStringRef
TWindow::CopyTitle() const
{
    CFStringRef outTitle;
    
    CopyWindowTitleAsCFString( fWindow, &outTitle );
    
    return outTitle;
}
 
void
TWindow::SetAlternateTitle( CFStringRef inTitle )
{
    SetWindowAlternateTitle( fWindow, inTitle );
}
 
CFStringRef
TWindow::CopyAlternateTitle() const
{
    CFStringRef outTitle;
    
    CopyWindowAlternateTitle( fWindow, &outTitle );
    
    return outTitle;
}
 
void
TWindow::Show()
{
    ShowWindow( fWindow );
    AdvanceKeyboardFocus( GetWindowRef() );
}
 
void
TWindow::Hide()
{
    HideWindow( fWindow );
}
 
bool
TWindow::IsVisible() const
{
    return IsWindowVisible( fWindow );
}
 
void
TWindow::Select()
{
    SelectWindow( fWindow );
}
 
void
TWindow::Draw()
{
}
 
void
TWindow::Activated()
{
}
 
void
TWindow::Deactivated()
{
}
 
Boolean
TWindow::ActivateControls()
{
    return false;
}
 
Boolean
TWindow::DeactivateControls()
{
    return false;
}
 
void
TWindow::Moved()
{
}
 
void
TWindow::Resized()
{
}
 
Point
TWindow::GetIdealSize()
{
    Point size = { 0, 0 };
    
    return size;
}
 
#pragma mark -
 
void
TWindow::MoveTopLeftOfContentTo( SInt16 x, SInt16 y )
{
    MoveWindow( fWindow, x, y, false );
}
 
void
TWindow::SetContentSize( SInt16 x, SInt16 y )
{
    SizeWindow( fWindow, x, y, true );
}
 
#pragma mark -
 
void
TWindow::InvalidateArea( RgnHandle region )
{
    InvalWindowRgn( fWindow, region );
}
 
void
TWindow::InvalidateArea( const Rect& rect )
{
    InvalWindowRect( fWindow, &rect );
}
 
void
TWindow::ValidateArea( RgnHandle region )
{
    ValidWindowRgn( fWindow, region );
}
 
void
TWindow::ValidateArea( const Rect& rect )
{
    ValidWindowRect( fWindow, &rect );
}
 
#pragma mark -
 
Boolean
TWindow::UpdateCommandStatus( UInt32 inCommand )
{
    if ( inCommand == 'clos' )
    {
        EnableMenuCommand( NULL, inCommand );
        return true;
    }
    
    return false; // not handled
}
 
Boolean
TWindow::HandleCommand( UInt32 inCommand )
{
    if ( inCommand == 'clos' )
    {
        EventRef        event;
        
        if ( CreateEvent( NULL, kEventClassWindow, kEventWindowClose,
                GetCurrentEventTime(), 0, &event ) == noErr )
        {
            WindowRef   window = GetWindowRef();
            SetEventParameter( event, kEventParamDirectObject, typeWindowRef,
                    sizeof( WindowRef ), &window );
            SendEventToEventTarget( event, GetWindowEventTarget( window ) );
            ReleaseEvent( event );
        }
        return true;
    }
    
    return false; // not handled
}
 
//------------------------------------------------------------------------------------
//  ¥ UpdateNow
//------------------------------------------------------------------------------------
//  Send ourselves an update event. This will cause our Draw method to be called.
//
void
TWindow::UpdateNow()
{
    if ( IsWindowUpdatePending( GetWindowRef() ) )
    {
        OSStatus    err;
        EventRef    event;
        
        err = CreateEvent( NULL, kEventClassWindow, kEventWindowUpdate,
                GetCurrentEventTime(), 0, &event );
        if ( err == noErr )
        {
            WindowRef   window = GetWindowRef();
            
            SetEventParameter( event, kEventParamDirectObject, typeWindowRef,
                sizeof( WindowRef ), &window );
        
            SendEventToEventTarget( event, GetWindowEventTarget( window ) );
            ReleaseEvent( event );
        }
    }
}
 
#pragma mark -
 
void
TWindow::SetDefaultButton( ControlRef control )
{
    SetWindowDefaultButton( fWindow, control );
}
 
void
TWindow::SetCancelButton( ControlRef control )
{
    SetWindowCancelButton( fWindow, control );
}
 
#pragma mark -
 
OSStatus
TWindow::HandleEvent( EventHandlerCallRef inRef, EventRef inEvent )
{
    OSStatus    result = eventNotHandledErr;
    OSStatus    err;
    UInt32      attributes;
    HICommand   command;
    
    switch ( GetEventClass( inEvent ) )
    {
        case kEventClassCommand:
            {
                GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand,
                        NULL, sizeof( HICommand ), NULL, &command );
            
                switch ( GetEventKind( inEvent ) )
                {
                    case kEventCommandProcess:
                        if ( this->HandleCommand( command.commandID ) )
                            result = noErr;
                        break;
                    
                    case kEventCommandUpdateStatus:
                        if ( this->UpdateCommandStatus( command.commandID ) )
                            result = noErr;
                        break;
                }
            }
            break;
            
        case kEventClassWindow:
            switch ( GetEventKind( inEvent ) )
            {
                case kEventWindowClose:
                    this->Close();
                    result = noErr;
                    break;
                
                case kEventWindowDrawContent:
                    ::CallNextEventHandler( inRef, inEvent );
                    this->Draw();
                    result = noErr;
                    break;
                
                case kEventWindowActivated:
                    ::CallNextEventHandler( inRef, inEvent );
                    this->Activated();
                    result = noErr;
                    break;
                
                case kEventWindowDeactivated:
                    ::CallNextEventHandler( inRef, inEvent );
                    this->Deactivated();
                    result = noErr;
                    break;
                
                case kEventWindowHandleActivate:
                    if ( this->ActivateControls() )
                        result = noErr;
                    break;
                
                case kEventWindowHandleDeactivate:
                    if ( this->DeactivateControls() )
                        result = noErr;
                    break;
                
                case kEventWindowBoundsChanged:
                    err = GetEventParameter( inEvent, kEventParamAttributes, typeUInt32,
                                NULL, sizeof( UInt32 ), NULL, &attributes );
                    if ( err == noErr )
                    {
                        if ( attributes & kWindowBoundsChangeSizeChanged )
                        {
                            this->Resized();
                            result = noErr;
                        }
                        else if ( attributes & kWindowBoundsChangeOriginChanged )
                        {
                            this->Moved();
                            result = noErr;
                        }
                    }
                    break;
                
                case kEventWindowGetIdealSize:
                    {
                        Point   size = this->GetIdealSize();
                        
                        if ( (size.h != 0) && (size.v != 0) )
                        {
                            SetEventParameter( inEvent, kEventParamDimensions, typeQDPoint,
                                    sizeof( Point ), &size );
                            result = noErr;
                        }
                    }
                    break;
            }
    };
    
    return result;
}
 
void
TWindow::RegisterForEvents( UInt32 numEvents, const EventTypeSpec* list )
{
    AddEventTypesToHandler( fHandler, numEvents, list );
}
 
void
TWindow::UnregisterForEvents( UInt32 numEvents, const EventTypeSpec* list )
{
    RemoveEventTypesFromHandler( fHandler, numEvents, list );
}
 
EventHandlerUPP
TWindow::GetEventHandlerProc()
{
    static EventHandlerUPP handlerProc = NULL;
    
    if ( handlerProc == NULL )
        handlerProc = NewEventHandlerUPP( EventHandlerProc );
    
    return handlerProc;
}
 
pascal OSStatus
TWindow::EventHandlerProc( EventHandlerCallRef handler, EventRef event, void* userData )
{
    return ((TWindow*)userData)->HandleEvent( handler, event );
}
 
void
TWindow::EnableControlByID( ControlID theID )
{
    ControlRef  control;
    OSStatus    err;
    
    err = ::GetControlByID( GetWindowRef(), &theID, &control );
    if ( err == noErr )
        EnableControl( control );
}
 
void
TWindow::DisableControlByID( ControlID theID )
{
    ControlRef  control;
    OSStatus    err;
    
    err = ::GetControlByID( GetWindowRef(), &theID, &control );
    if ( err == noErr )
        DisableControl( control );
}
 
void
TWindow::ShowControlByID( ControlID theID )
{
    ControlRef  control;
    OSStatus    err;
    
    err = ::GetControlByID( GetWindowRef(), &theID, &control );
    if ( err == noErr )
        ShowControl( control );
}
 
void
TWindow::HideControlByID( ControlID theID )
{
    ControlRef  control;
    OSStatus    err;
    
    err = ::GetControlByID( GetWindowRef(), &theID, &control );
    if ( err == noErr )
        HideControl( control );
}


Copyright © 2005 Apple Computer, Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2005-06-27