1 files changed, 192 insertions, 0 deletions
diff --git a/AppKit/GTMNSColor+Theme.m b/AppKit/GTMNSColor+Theme.m
new file mode 100644
index 0000000..b3437e7
--- /dev/null
+++ b/AppKit/GTMNSColor+Theme.m
@@ -0,0 +1,192 @@
+//
+//  GTMNSColor+Theme.m
+//
+//  Category for working with Themes and NSColor
+//
+//  Copyright 2006-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+// 
+//  http://www.apache.org/licenses/LICENSE-2.0
+// 
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import "GTMNSColor+Theme.h"
+
+@implementation NSColor (GTMColorThemeAdditions)
+
+/// Create up an NSColor based on a Theme Text Color
+/// Colors will be in the device color space
++ (id)gtm_colorWithThemeTextColor:(ThemeTextColor)textColor {
+  NSColor *nsTextColor = nil;
+  RGBColor rgbTextColor;
+  OSStatus status = GetThemeTextColor(textColor, 32, true, &rgbTextColor);
+  if (status == noErr) {
+    float red = rgbTextColor.red / 65535.0f;
+    float green = rgbTextColor.green / 65535.0f;
+    float blue = rgbTextColor.blue / 65535.0f;
+    nsTextColor = [NSColor colorWithDeviceRed:red
+                                        green:green
+                                         blue:blue
+                                        alpha:1.0f];
+  } else {
+#ifdef DEBUG
+    NSLog(@"Unable to create color for textcolor %d", textColor);
+#endif
+  }
+  return nsTextColor;
+}
+
+/// Create up an NSColor based on a Theme Brush
+/// Colors will be in the DeviceRGB color space
++ (id)gtm_colorWithThemeBrush:(ThemeBrush)brush {
+  NSColor *nsBrushColor = nil;
+  RGBColor rgbBrushColor;
+  OSStatus status = GetThemeBrushAsColor(brush, 32, true, &rgbBrushColor);
+  if (status == noErr) {
+    nsBrushColor = [NSColor colorWithDeviceRed:rgbBrushColor.red / 65535.0f
+                                         green:rgbBrushColor.green / 65535.0f
+                                          blue:rgbBrushColor.blue / 65535.0f
+                                         alpha:1.0f];
+  } else {
+#ifdef DEBUG
+    NSLog(@"Unable to create color for brushcolor %d", brush);
+#endif
+  }
+  return nsBrushColor;
+}
+
++ (NSColor *)gtm_deviceBlackColor { /* 0.0f white */
+  return [NSColor colorWithDeviceWhite:0.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceDarkGrayColor { /* 0.333 white */
+  return [NSColor colorWithDeviceWhite:1.0f/3.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceLightGrayColor { /* 0.667 white */
+  return [NSColor colorWithDeviceWhite:2.0f/3.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceWhiteColor { /* 1.0f white */
+  return [NSColor colorWithDeviceWhite:1.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceGrayColor { /* 0.5 white */
+  return [NSColor colorWithDeviceWhite:0.5f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceRedColor { /* 1.0f, 0.0f, 0.0f RGB */
+  return [NSColor colorWithDeviceRed:1.0f green:0.0f blue: 0.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceGreenColor {	/* 0.0f, 1.0f, 0.0f RGB */
+return [NSColor colorWithDeviceRed:0.0f green:1.0f blue: 0.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceBlueColor { /* 0.0f, 0.0f, 1.0f RGB */
+return [NSColor colorWithDeviceRed:0.0f green:0.0f blue: 1.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceCyanColor { /* 0.0f, 1.0f, 1.0f RGB */
+return [NSColor colorWithDeviceRed:0.0f green:1.0f blue: 1.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceYellowColor { /* 1.0f, 1.0f, 0.0f RGB */
+return [NSColor colorWithDeviceRed:1.0f green:1.0f blue: 0.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceMagentaColor {	/* 1.0f, 0.0f, 1.0f RGB */
+return [NSColor colorWithDeviceRed:1.0f green:0.0f blue: 1.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceOrangeColor { /* 1.0f, 0.5, 0.0f RGB */
+return [NSColor colorWithDeviceRed:1.0f green:0.5f blue: 0.0f alpha:1.0f];
+}
+
++ (NSColor *)gtm_devicePurpleColor { /* 0.5, 0.0f, 0.5 RGB */
+return [NSColor colorWithDeviceRed:0.5f green:0.0f blue: 0.5f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceBrownColor {	/* 0.6, 0.4, 0.2 RGB */
+return [NSColor colorWithDeviceRed:0.6f green:0.4f blue: 0.2f alpha:1.0f];
+}
+
++ (NSColor *)gtm_deviceClearColor {	/* 0.0f white, 0.0f alpha */
+  return [NSColor colorWithDeviceWhite:0.0f alpha:0.0f];
+}
+
+- (NSColor *)gtm_safeColorWithAlphaComponent:(float)alpha {
+  // This mess is here because of 
+  // Radar 5047862 [NSColor colorWithAlphaComponent] does NOT maintain colorspace.
+  // As of 10.4.8, colorWithAlphaComponent will return an NSCalibratedRGBColor
+  // instead of a NSDeviceRGBColor when you call colorWithAlphaComponent on
+  // a NSDeviceRGBColor even though the docs say "Creates and returns an NSColor 
+  // object that has the same color space and component values as the receiver"
+  // We must use exceptions in case somebody attempts to put a pattern through
+  // here. The assumption being made is that alpha is the last color component
+  // which it is for all current cases.
+  NSColor *newColor = nil;
+    
+#if (MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4)
+  @try {
+    int componentCount = [self numberOfComponents];
+    float *components = (float*)calloc(componentCount, sizeof(float));
+    if (!components) {
+      NSException *exception = [NSException exceptionWithName:NSMallocException
+                                                       reason:@"Unable to malloc components" 
+                                                     userInfo:nil];
+      @throw exception;
+    }
+    [self getComponents:components];
+    components[componentCount - 1] = alpha;
+    newColor = [NSColor colorWithColorSpace:[self colorSpace]
+                                components:components count:componentCount];
+    free(components);
+  }
+  @catch (NSException *ex) {
+    // Probably passed us a pattern. I'm not even sure how Apple deals with
+    // changing the alpha of a pattern color.
+    newColor = [self colorWithAlphaComponent:alpha];
+  }
+#else
+  // Radar 5047862 is fixed in Leopard.
+  newColor = [self colorWithAlphaComponent:alpha];
+#endif
+  return newColor;
+}
+
+- (NSColor *)gtm_safeColorUsingColorSpaceName:(NSString *)colorSpaceName {
+  NSColor *outColor = [self colorUsingColorSpaceName:colorSpaceName];
+  if (!outColor) {
+    NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
+                                                                     pixelsWide:1
+                                                                     pixelsHigh:1
+                                                                  bitsPerSample:8
+                                                                samplesPerPixel:4
+                                                                       hasAlpha:YES
+                                                                       isPlanar:NO
+                                                                 colorSpaceName:colorSpaceName 
+                                                                    bytesPerRow:0 
+                                                                   bitsPerPixel:0] autorelease];
+    NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithBitmapImageRep:rep];
+    if (context) {
+      NSRect rect = NSMakeRect(0, 0, 1, 1);
+      [NSGraphicsContext saveGraphicsState];
+      [NSGraphicsContext setCurrentContext:context];
+      [self setFill];
+      NSRectFill(rect);
+      [NSGraphicsContext restoreGraphicsState];
+      outColor = [rep colorAtX:0 y:0];
+    }
+  }
+  return outColor;
+}
+@end