initial drop of a few sources to start things out

1 files changed, 94 insertions, 0 deletions

diff --git a/AppKit/GTMLinearRGBShadingTest.m b/AppKit/GTMLinearRGBShadingTest.m
new file mode 100644
index 0000000..6407e71
--- /dev/null
+++ b/AppKit/GTMLinearRGBShadingTest.m
@@ -0,0 +1,94 @@
+//
+//  GTMLinearRGBShadingTest.m
+//
+//  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 <SenTestingKit/SenTestingKit.h>
+#import "GTMLinearRGBShading.h"
+#import "GTMNSColor+Theme.h"
+
+
+@interface GTMLinearRGBShadingTest : SenTestCase
+@end
+
+@implementation GTMLinearRGBShadingTest
+- (void)testShadingFrom {
+  // Create a shading from red to blue, and check if 50% is purple
+  NSColor *red = [NSColor gtm_deviceRedColor];
+  NSColor *blue = [NSColor gtm_deviceBlueColor];
+  NSColor *purple = [NSColor gtm_devicePurpleColor];
+  GTMLinearRGBShading *theShading =
+    [GTMLinearRGBShading shadingFromColor:red
+                                  toColor:blue
+                           fromSpaceNamed:NSDeviceRGBColorSpace];
+  STAssertNotNil(theShading,nil);
+  STAssertTrue([theShading stopCount] == 2, nil);
+  float *theColor = (float*)[theShading valueAtPosition: 0.5];
+  STAssertTrue(theColor[0] == [purple redComponent] &&
+               theColor[1] == [purple greenComponent] &&
+               theColor[2] == [purple blueComponent] &&
+               theColor[3] == [purple alphaComponent], nil);
+}
+
+- (void)testShadingWith {
+  // Create a shading with kColorCount colors and make sure all the values are there.
+  const unsigned int kColorCount = 100; 
+  NSColor *theColors[kColorCount];
+  float thePositions[kColorCount];
+  const float kColorIncrement = 1.0f / kColorCount;
+  for (unsigned int i = 0; i < kColorCount; i++) {
+    thePositions[i] = kColorIncrement * i;
+    theColors[i] = [NSColor colorWithDeviceRed:kColorIncrement * i 
+                                         green:kColorIncrement * i 
+                                          blue:kColorIncrement * i 
+                                         alpha:kColorIncrement * i];
+  }
+  GTMLinearRGBShading *theShading =
+    [GTMLinearRGBShading shadingWithColors:theColors
+                            fromSpaceNamed:NSDeviceRGBColorSpace
+                               atPositions:thePositions
+                                     count:kColorCount];
+  for (unsigned int i = 0; i < kColorCount; i++) {
+     float *theColor = (float*)[theShading valueAtPosition: kColorIncrement * i];
+    STAssertTrue(theColor[0] == kColorIncrement * i &&
+                 theColor[1] == kColorIncrement * i &&
+                 theColor[2] == kColorIncrement * i &&
+                 theColor[3] == kColorIncrement * i, nil);
+  }
+}
+
+- (void)testShadeFunction {
+  GTMLinearRGBShading *theShading =
+    [GTMLinearRGBShading shadingWithColors:nil
+                            fromSpaceNamed:NSDeviceRGBColorSpace
+                               atPositions:nil
+                                     count:0];
+  CGFunctionRef theFunction = [theShading shadeFunction];
+  STAssertTrue(nil != theFunction, nil);
+  STAssertTrue(CFGetTypeID(theFunction) == CGFunctionGetTypeID(), nil);  
+}
+
+- (void)testColorSpace {
+  GTMLinearRGBShading *theShading =
+    [GTMLinearRGBShading shadingWithColors:nil
+                            fromSpaceNamed:NSDeviceRGBColorSpace
+                               atPositions:nil
+                                     count:0];
+  CGColorSpaceRef theColorSpace = [theShading colorSpace];
+  STAssertTrue(nil != theColorSpace, nil);
+  STAssertTrue(CFGetTypeID(theColorSpace) == CGColorSpaceGetTypeID(), nil);
+}
+@end