C# Reducer.BackgroundImageClass类代码示例

        public void AddImage(BackgroundImageClass image)
        {
            var imageBytes = webClientWrapper.DownloadBytes(image.ImageUrl);
            Bitmap bitmap = null;
            using (var originalBitmap = new Bitmap(new MemoryStream(imageBytes)))
            {
                using (var writer = new SpriteWriter(image.Width ?? originalBitmap.Width, image.Height ?? originalBitmap.Height))
                {
                    var width = image.Width ?? originalBitmap.Width;
                    if (width > originalBitmap.Width)
                        width = originalBitmap.Width;
                    var height = image.Height ?? originalBitmap.Height;
                    if (height > originalBitmap.Height)
                        height = originalBitmap.Height;
                    var x = image.XOffset.Offset < 0 ? Math.Abs(image.XOffset.Offset) : 0;
                    var y = image.YOffset.Offset < 0 ? Math.Abs(image.YOffset.Offset) : 0;

                    writer.WriteImage(originalBitmap.Clone(new Rectangle(x, y, width, height), originalBitmap.PixelFormat));
                    bitmap = writer.SpriteImage;
                    if ((originalBitmap.Width * originalBitmap.Height) > (bitmap.Width * bitmap.Height))
                        Size += writer.GetBytes("image/png").Length;
                    else
                        Size += imageBytes.Length;
                }
            }
            images.Add(bitmap);
            Width += bitmap.Width;
            if (Height < bitmap.Height) Height = bitmap.Height;
        }

        private static void InheritMissingProperties(BackgroundImageClass derrivableClass, BackgroundImageClass imageClass)
        {
            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasYOffset))
                imageClass.YOffset = derrivableClass.YOffset;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasXOffset))
                imageClass.XOffset = derrivableClass.XOffset;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasRepeat))
                imageClass.Repeat = derrivableClass.Repeat;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasImage))
                imageClass.ImageUrl = derrivableClass.ImageUrl;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasPaddingBottom))
                imageClass.PaddingBottom = derrivableClass.PaddingBottom;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasPaddingTop))
                imageClass.PaddingTop = derrivableClass.PaddingTop;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasPaddingLeft))
                imageClass.PaddingLeft = derrivableClass.PaddingLeft;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasPaddingRight))
                imageClass.PaddingRight = derrivableClass.PaddingRight;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasWidth))
                imageClass.ExplicitWidth = derrivableClass.ExplicitWidth;

            if (DerivableHasMissingProperty(derrivableClass, imageClass, PropertyCompletion.HasHeight))
                imageClass.ExplicitHeight = derrivableClass.ExplicitHeight;
        }

        public IEnumerable<BackgroundImageClass> ExtractImageUrls(string cssContent)
        {
            var finalUrls = new List<BackgroundImageClass>();
            var draftUrls = new List<BackgroundImageClass>();
            var classCounter = 0;
            foreach (var classMatch in classPattern.Matches(cssContent))
            {
                var imageClass = new BackgroundImageClass(classMatch.ToString(), ++classCounter);
                if (!ShouldFlatten(imageClass)) continue;
                if (!IsComplete(imageClass) && ShouldFlatten(imageClass))
                {
                    var workList = new List<BackgroundImageClass>();
                    for (var n = draftUrls.Count - 1; n > -1; n--)
                    {
                        var selectors = draftUrls[n].Selector.Split(new [] {','});
                        var targetSelectors = imageClass.Selector.Split(new[] { ',' });
                        foreach (var selector in selectors)
                        {
                            if (targetSelectors
                                .Any(targetSelector => cssSelectorAnalyzer.IsInScopeOfTarget(targetSelector.Trim(), selector.Trim())))
                                workList.Add(draftUrls[n]);
                        }
                    }
                    workList.Sort(selectorComparer);
                    foreach (var cls in workList.Where(cls => !IsComplete(imageClass)))
                        InheritMissingProperties(cls, imageClass);
                }

                draftUrls.Add(imageClass);
                if (CanSprite(imageClass))
                    finalUrls.Add(imageClass);
            }
            return finalUrls;
        }

 public SpritedImage(int averageColor, BackgroundImageClass cssClass, Bitmap image)
 {
     AverageColor = averageColor;
     CssClass = cssClass;
     Image = image;
     Position = -1;
 }

 public virtual void Add(BackgroundImageClass image)
 {
     var imageKey = new ImageMetadata(image);
     if (RRContainer.Current.GetAllInstances<IFilter>().Where(x => x is SpriteFilter).FirstOrDefault(y => y.IgnoreTarget(new SpriteFilterContext(image))) != null || spriteList.ContainsKey(imageKey))
         return;
     SpritedImage spritedImage;
     try
     {
         spritedImage = SpriteContainer.AddImage(image);
     }
     catch (InvalidOperationException ex)
     {
         var message = string.Format("There were errors reducing {0}", image.ImageUrl);
         var wrappedException =
             new ApplicationException(message, ex);
         RRTracer.Trace(message);
         RRTracer.Trace(ex.ToString());
         if (Registry.CaptureErrorAction != null)
             Registry.CaptureErrorAction(wrappedException);
         return;
     }
     spriteList.Add(imageKey, spritedImage);
     if (SpriteContainer.Size >= config.SpriteSizeLimit || (SpriteContainer.Colors >= config.SpriteColorLimit && !config.ImageQuantizationDisabled && !config.ImageOptimizationDisabled))
         Flush();
 }

 public virtual void Add(BackgroundImageClass image)
 {
     var imageKey = new ImageMetadata(image);
     if (spriteList.ContainsKey(imageKey))
         return;
     SpritedImage spritedImage = null;
     try
     {
         spritedImage = SpriteContainer.AddImage(image);
     }
     catch (InvalidOperationException ex)
     {
         var message = string.Format("There were errors reducing {0}", image.ImageUrl);
         var wrappedException =
             new ApplicationException(message, ex);
         RRTracer.Trace(message);
         RRTracer.Trace(ex.ToString());
         if (RequestReduceModule.CaptureErrorAction != null)
             RequestReduceModule.CaptureErrorAction(wrappedException);
         return;
     }
     spriteList.Add(imageKey, spritedImage);
     if (SpriteContainer.Size >= config.SpriteSizeLimit || (SpriteContainer.Colors >= config.SpriteColorLimit && !config.ImageQuantizationDisabled && !config.ImageOptimizationDisabled))
         Flush();
 }

 public virtual Sprite this[BackgroundImageClass image]
 {
     get
     {
         var imageKey = new ImageMetadata(image);
         return spriteList.ContainsKey(imageKey) ? spriteList[imageKey] : null;
     }
 }

 private static bool DerivableHasMissingProperty(BackgroundImageClass derrivableClass, BackgroundImageClass imageClass, PropertyCompletion property)
 {
     if ((imageClass.PropertyCompletion & property) != property && (derrivableClass.PropertyCompletion & property) == property)
     {
         imageClass.PropertyCompletion = imageClass.PropertyCompletion | property;
         return true;
     }
     return false;
 }

            public void WillLeaveImageUrlNullIfBackgroundImageUrlIsDataUri()
            {
                var css =
    @"
.LocalNavigation .TabOn,.LocalNavigation .TabOn:hover {
    background-image: url(""data:image/png;base64,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"");
}";

                var testable = new BackgroundImageClass(css, 0);

                Assert.Null(testable.ImageUrl);
            }

            public void WillLeaveImageUrlNullIfBackgroundImageUrlIsEmpty()
            {
                var css =
    @"
.LocalNavigation .TabOn,.LocalNavigation .TabOn:hover {
    background-image: url("""");
}";

                var testable = new BackgroundImageClass(css, 0);

                Assert.Null(testable.ImageUrl);
            }

            public void WillSetImageUrlFromBackgroundImageStyle()
            {
                var css =
    @"
.LocalNavigation .TabOn,.LocalNavigation .TabOn:hover {
    background-image: url(""http://i3.social.microsoft.com/contentservice/1f22465a-498c-46f1-83d3-9dad00d8a950/subnav_on_technet.png"");
}";

                var testable = new BackgroundImageClass(css, 0);

                Assert.Equal("http://i3.social.microsoft.com/contentservice/1f22465a-498c-46f1-83d3-9dad00d8a950/subnav_on_technet.png", testable.ImageUrl);
            }

            public void WillSetImageUrlFromShortcutStyleWhwenLastPropertyWithNoSemicolon()
            {
                var css =
    @"
.LocalNavigation .TabOn,.LocalNavigation .TabOn:hover {
    background: #fff url(""http://i3.social.microsoft.com/contentservice/1f22465a-498c-46f1-83d3-9dad00d8a950/subnav_on_technet.png"") repeat
}";

                var testable = new BackgroundImageClass(css, 0);

                Assert.Equal("http://i3.social.microsoft.com/contentservice/1f22465a-498c-46f1-83d3-9dad00d8a950/subnav_on_technet.png", testable.ImageUrl);
            }

 public virtual Sprite Add(BackgroundImageClass image)
 {
     var imageKey = new ImageMetadata(image);
     if (spriteList.ContainsKey(imageKey))
         return spriteList[imageKey];
     var currentPositionToReturn = SpriteContainer.Width;
     SpriteContainer.AddImage(image);
     var sprite = new Sprite(currentPositionToReturn, spriteIndex);
     if (SpriteContainer.Size >= config.SpriteSizeLimit)
         Flush();
     spriteList.Add(imageKey, sprite);
     return sprite;
 }

            public void WillSetSecondOffsetAsXOffsetWhenFirstOffsetIsBottom(string statedOffset, PositionMode expectedPositionMode, int expectedOffset)
            {
                var css =
                @"
                .LocalNavigation .TabOn,.LocalNavigation .TabOn:hover {{
                background: url(""http://i3.social.microsoft.com/contentservice/1f22465a-498c-46f1-83d3-9dad00d8a950/subnav_on_technet.png"") no-repeat;
                background-position: bottom {0};
                }}";

                var testable = new BackgroundImageClass(string.Format(css, statedOffset), "http://server/content/style.css");

                Assert.Equal(expectedPositionMode, testable.XOffset.PositionMode);
                Assert.Equal(expectedOffset, expectedPositionMode == PositionMode.Direction ? (int)testable.XOffset.Direction : testable.XOffset.Offset);
            }

        public SpritedImage AddImage(BackgroundImageClass image)
        {
            var imageBytes = webClientWrapper.DownloadBytes(image.ImageUrl);
            Bitmap bitmap;
            using (var originalBitmap = new Bitmap(new MemoryStream(imageBytes)))
            {
                using (var writer = new SpriteWriter(image.Width ?? originalBitmap.Width, image.Height ?? originalBitmap.Height))
                {
                    var width = image.Width ?? originalBitmap.Width;
                    if (width > originalBitmap.Width)
                        width = originalBitmap.Width;
                    var height = image.Height ?? originalBitmap.Height;
                    if (height > originalBitmap.Height)
                        height = originalBitmap.Height;
                    var x = image.XOffset.Offset < 0 ? Math.Abs(image.XOffset.Offset) : 0;
                    var y = image.YOffset.Offset < 0 ? Math.Abs(image.YOffset.Offset) : 0;

                    try
                    {
                        using (var bm = originalBitmap.Clone(new Rectangle(x, y, width, height), originalBitmap.PixelFormat))
                        {
                            writer.WriteImage(bm);
                        }
                    }
                    catch (OutOfMemoryException)
                    {
                        throw new InvalidOperationException(string.Format("Unable to Add {0} to Sprite.", image.OriginalImageUrl));
                    }
                    bitmap = writer.SpriteImage;
                    if ((originalBitmap.Width * originalBitmap.Height) > (bitmap.Width * bitmap.Height))
                        Size += writer.GetBytes("image/png").Length;
                    else
                        Size += imageBytes.Length;
                }
            }
            var avgColor = rrConfiguration.IsFullTrust ? GetColors(bitmap) : 0;
            var spritedImage = new SpritedImage(avgColor, image, bitmap);
            images.Add(spritedImage);
            Width += bitmap.Width + 1;
            if (Height < bitmap.Height) Height = bitmap.Height;
            return spritedImage;
        }