/*

File: PrintView.m

Abstract: Print.m class implementation

Version: <1.0>

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*/

#import "PrintView.h"

#import "ImageDoc.h"

@implementation PrintView

- (id) initWithFrame:(NSRect)frame document:(ImageDoc*)imageDoc

{

    if ((self = [super initWithFrame:frame])!= nil)

        mImageDoc  = imageDoc;

    return self;

}

- (NSString *) printJobTitle

{

    return [mImageDoc displayName];

}

- (void) drawRect: (NSRect) rect 

{

    // FYI: rect is a scaled and clipped to the page boundaries part of the 

    // document [printInfo imageablePageBounds]

    CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort];

    CGContextSaveGState(context);

    float scale, xScale, yScale;

    CGSize  imageSize;

    NSRect  printableRect = NSIntegralRect([self frame]);

    imageSize = [mImageDoc imageSize];

    CGRect  imageRect = {{0,0}, {imageSize.width, imageSize.height}};

    // adjust for orientation and non-symetric DPI of the image

    CGAffineTransform imTransform = [mImageDoc imageTransform];

    imageSize = CGRectApplyAffineTransform(imageRect, imTransform).size;

    // find the scale to fit

    xScale = printableRect.size.width  / imageSize.width;

    yScale = printableRect.size.height / imageSize.height;

    scale = MIN(xScale, yScale);

    // adjust the image transform

    imTransform = CGAffineTransformConcat(imTransform, CGAffineTransformMakeScale(scale,scale));

    // center the image

    float tx = (printableRect.size.width - imageSize.width * scale)  / 2.

    + printableRect.origin.x;

    float ty = (printableRect.size.height - imageSize.height* scale) / 2.

    + printableRect.origin.y;

    imTransform.tx += tx;

    imTransform.ty += ty;

    // adjust transform

    CGContextConcatCTM(context, imTransform);

    // draw!

    [mImageDoc  drawImage:context imageRect:imageRect];

    CGContextRestoreGState(context);

}

@end