From b636368a771c4b7791244d308529bd9d44abfe99 Mon Sep 17 00:00:00 2001
From: Mike Wey
Date: Sun, 11 Sep 2011 11:38:32 +0200
Subject: Version the Headers so DMagick can be used with older versions of
 MagickCore.

---
 dmagick/c/magickType.d | 70 +++++++++++++++++++++++++++++++++-----------------
 1 file changed, 47 insertions(+), 23 deletions(-)

(limited to 'dmagick/c/magickType.d')

diff --git a/dmagick/c/magickType.d b/dmagick/c/magickType.d
index 9d92e4c..f2eabb0 100644
--- a/dmagick/c/magickType.d
+++ b/dmagick/c/magickType.d
@@ -1,5 +1,7 @@
 module dmagick.c.magickType;
 
+import dmagick.c.magickVersion;
+
 extern (C)
 {
 	version(Quantum8)
@@ -63,30 +65,52 @@ extern (C)
 	enum MaxTextExtent = 4096;
 	enum OpaqueOpacity = 0;
 
-	enum ChannelType
+	mixin(
 	{
-		UndefinedChannel,
-		RedChannel        = 0x0001,
-		GrayChannel       = 0x0001,
-		CyanChannel       = 0x0001,
-		GreenChannel      = 0x0002,
-		MagentaChannel    = 0x0002,
-		BlueChannel       = 0x0004,
-		YellowChannel     = 0x0004,
-		AlphaChannel      = 0x0008,
-		OpacityChannel    = 0x0008,
-		MatteChannel      = 0x0008,  // deprecated
-		BlackChannel      = 0x0020,
-		IndexChannel      = 0x0020,
-		CompositeChannels = 0x002F,
-		AllChannels       = 0x7FFFFFF,
-
-		TrueAlphaChannel = 0x0040, // extract actual alpha channel from opacity
-		RGBChannels      = 0x0080, // set alpha from  grayscale mask in RGB
-		GrayChannels     = 0x0080,
-		SyncChannels     = 0x0100, // channels should be modified equally
-		DefaultChannels  = ( (AllChannels | SyncChannels) &~ OpacityChannel)
-	}
+		string channels = "enum ChannelType
+		{
+			UndefinedChannel,
+			RedChannel        = 0x0001,
+			GrayChannel       = 0x0001,
+			CyanChannel       = 0x0001,
+			GreenChannel      = 0x0002,
+			MagentaChannel    = 0x0002,
+			BlueChannel       = 0x0004,
+			YellowChannel     = 0x0004,
+			AlphaChannel      = 0x0008,
+			OpacityChannel    = 0x0008,
+			MatteChannel      = 0x0008,  // deprecated
+			BlackChannel      = 0x0020,
+			IndexChannel      = 0x0020,
+			CompositeChannels = 0x002F,";
+
+			static if ( MagickLibVersion < 0x670 )
+			{
+				channels ~= "AllChannels = 0x002F,";
+			}
+			else static if ( MagickLibVersion == 0x670 )
+			{
+				channels ~= "AllChannels       =   ~0UL,";
+			}
+			else static if ( MagickLibVersion == 0x671 )
+			{
+				channels ~= "AllChannels       =    ~0L,";
+			}
+			else
+			{
+				channels ~= "AllChannels       = 0x7FFFFFF,";
+			}
+
+			channels ~= "
+			TrueAlphaChannel = 0x0040, // extract actual alpha channel from opacity
+			RGBChannels      = 0x0080, // set alpha from  grayscale mask in RGB
+			GrayChannels     = 0x0080,
+			SyncChannels     = 0x0100, // channels should be modified equally
+			DefaultChannels  = ( (AllChannels | SyncChannels) &~ OpacityChannel)
+		}";
+
+		return channels;
+	}());
 
 	enum ClassType
 	{
-- 
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