1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/Source/QuartzUtils.h	Fri Mar 07 11:43:02 2008 -0800
     1.3 @@ -0,0 +1,70 @@
     1.4 +/*  This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
     1.5 +    http://developer.apple.com/samplecode/GeekGameBoard/
     1.6 +    Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
     1.7 +
     1.8 +    Redistribution and use in source and binary forms, with or without modification, are permitted
     1.9 +    provided that the following conditions are met:
    1.10 +
    1.11 +    * Redistributions of source code must retain the above copyright notice, this list of conditions
    1.12 +      and the following disclaimer.
    1.13 +    * Redistributions in binary form must reproduce the above copyright notice, this list of
    1.14 +      conditions and the following disclaimer in the documentation and/or other materials provided
    1.15 +      with the distribution.
    1.16 +
    1.17 +    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
    1.18 +    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
    1.19 +    FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
    1.20 +    BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    1.21 +    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
    1.22 +    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
    1.23 +    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
    1.24 +    THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.25 +*/
    1.26 +#import <Quartz/Quartz.h>
    1.27 +
    1.28 +
    1.29 +/** Constants for various commonly used colors. */
    1.30 +extern CGColorRef kBlackColor, kWhiteColor, 
    1.31 +                  kTranslucentGrayColor, kTranslucentLightGrayColor, 
    1.32 +                  kAlmostInvisibleWhiteColor,
    1.33 +                  kHighlightColor;
    1.34 +
    1.35 +
    1.36 +/** Moves a layer from one superlayer to another, without changing its position onscreen. */
    1.37 +void ChangeSuperlayer( CALayer *layer, CALayer *newSuperlayer, int index );
    1.38 +
    1.39 +/** Removes a layer from its superlayer without any fade-out animation. */
    1.40 +void RemoveImmediately( CALayer *layer );
    1.41 +
    1.42 +/** Convenience for creating a CATextLayer. */
    1.43 +CATextLayer* AddTextLayer( CALayer *superlayer,
    1.44 +                           NSString *text, NSFont* font,
    1.45 +                           enum CAAutoresizingMask align );
    1.46 +
    1.47 +
    1.48 +/** Loads an image or pattern file into a CGImage or CGPattern.
    1.49 +    If the name begins with "/", it's interpreted as an absolute filesystem path.
    1.50 +    Otherwise, it's the name of a resource that's looked up in the app bundle.
    1.51 +    The image must exist, or an assertion-failure exception will be raised!
    1.52 +    Loaded images/patterns are cached in memory, so subsequent calls with the same name
    1.53 +    are very fast.
    1.54 +    The caller must NOT release the result, since it's retained in the cache. */
    1.55 +CGImageRef GetCGImageNamed( NSString *name );
    1.56 +CGColorRef GetCGPatternNamed( NSString *name );
    1.57 +
    1.58 +/** Loads image data from the pasteboard into a CGImage. */
    1.59 +CGImageRef GetCGImageFromPasteboard( NSPasteboard *pb );
    1.60 +
    1.61 +/** Creates a CGPattern from a CGImage. Caller must release it. */
    1.62 +CGPatternRef CreateImagePattern( CGImageRef image );
    1.63 +
    1.64 +/** Creates a CGColor that draws the given CGImage as a pattern. Caller must release it. */
    1.65 +CGColorRef CreatePatternColor( CGImageRef image );
    1.66 +
    1.67 +/** Returns the alpha value of a single pixel in a CGImage, scaled to a particular size. */
    1.68 +float GetPixelAlpha( CGImageRef image, CGSize imageSize, CGPoint pt );
    1.69 +
    1.70 +/** Returns the center point of a CGRect. */
    1.71 +static inline CGPoint GetCGRectCenter( CGRect rect ) {
    1.72 +    return CGPointMake(CGRectGetMidX(rect),CGRectGetMidY(rect));
    1.73 +}
    1.74 \ No newline at end of file