//////////

//

//  File:       MyQuickDrawView.m

//

//  Contains:   Implementation file for the MyQuickDrawView class.

//

//  Written by: Apple Developer Technical Support

//

//  Copyright:  © 2001 by Apple Computer, Inc., all rights reserved.

//

//  Change History (most recent first):

//     

//     <1>      6/29/01 srk     first file

//

//////////

/*

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 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 AppleÕs copyrights in 

 this original Apple software (the "Apple Software"), to use, reproduce, modify and 

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 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 

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*/

#import "MyQuickDrawView.h"

#import "MyControllerObject.h"

#import <QuickTime/QuickTime.h>

//////////

//

// implementation

//

//////////

@implementation MyQuickDrawView

//////////

//

// drawRect

//

// Overridden by subclasses of NSView to draw the receiver's 

// image within aRect. It's here we set the graphics port and

// device for drawing our imported image

//

//////////

- (void)drawRect:(NSRect)aRect

{

    ComponentResult result;

    RgnHandle ourViewRegion = NewRgn();

    // clip the drawing of our QuickDraw port to the display rectangle

    SetRectRgn(ourViewRegion,0,0,aRect.size.width,aRect.size.height);

    // Let's not call GraphicsImportSetGWorld each time

    // as it can be expensive to setup a drawing port

    if (!setPortCalled)

    {

        // Set the graphics port and device for drawing our imported image

        // We use the QuickDraw port which is returned by the NSQuickDrawView

        // qdPort method

        result = GraphicsImportSetGWorld(myControllerObject->graphicsImporter, [self qdPort], NULL); 

        setPortCalled = TRUE;   // no need to call SetGWorld again for this image

    }

    // clip the image to the NSView rectangle

    result=GraphicsImportSetClip(myControllerObject->graphicsImporter,ourViewRegion);

    // draw it!!!

    result = GraphicsImportDraw(myControllerObject->graphicsImporter);

    // clean up

    DisposeRgn(ourViewRegion);

}

//////////

//

// awakeFromNib

//

// Called after all our objects are unarchived and

// connected but just before the interface is made visible

// to the user. We will do custom initialization of our

// objects here.

//

//////////

- (void)awakeFromNib

{

    setPortCalled = FALSE;  // restrict the number of times we set graphics port for our image

}

@end