From a2cc5f1844b0e71a7ea68b0d2d4207897ae471df Mon Sep 17 00:00:00 2001
From: Mike Wey
Date: Sun, 27 Mar 2011 23:29:00 +0200
Subject: Some more image properties

---
 dmagick/Image.d   | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 dmagick/Options.d | 40 ++++++++++++++++++++++++++++-
 2 files changed, 114 insertions(+), 1 deletion(-)

diff --git a/dmagick/Image.d b/dmagick/Image.d
index 86b969b..d644699 100644
--- a/dmagick/Image.d
+++ b/dmagick/Image.d
@@ -6,6 +6,8 @@
 
 module dmagick.Image;
 
+import std.conv;
+import std.math;
 import std.string;
 import core.sys.posix.sys.types;
 
@@ -20,6 +22,8 @@ import dmagick.c.blob;
 import dmagick.c.constitute;
 import dmagick.c.colormap;
 import dmagick.c.colorspace;
+import dmagick.c.composite;
+import dmagick.c.compress;
 import dmagick.c.effect;
 import dmagick.c.exception;
 import dmagick.c.geometry;
@@ -27,6 +31,7 @@ import dmagick.c.image;
 import dmagick.c.magickType;
 import dmagick.c.memory;
 import dmagick.c.pixel;
+import dmagick.c.quantum;
 import dmagick.c.resize;
 import dmagick.c.resource;
 
@@ -551,6 +556,8 @@ class Image
 	void colorspace(ColorspaceType type)
 	{
 		TransformImageColorspace(imageRef, type);
+
+		options.colorspace = type;
 	}
 	ColorspaceType colorspace() const
 	{
@@ -562,6 +569,74 @@ class Image
 		return imageRef.columns;
 	}
 
+	void compose(CompositeOperator op)
+	{
+		imageRef.compose = op;
+	}
+	CompositeOperator compose() const
+	{
+		return imageRef.compose;
+	}
+
+	void compression(CompressionType type)
+	{
+		imageRef.compression = type;
+		options.compression = type;
+	}
+	CompressionType compression() const
+	{
+		return imageRef.compression;
+	}
+
+	void density(Geometry value)
+	{
+		options.density = value;
+
+		imageRef.x_resolution = value.width;
+		imageRef.y_resolution = ( value.width != 0 ) ? value.width : value.height;
+	}
+	Geometry density() const
+	{
+		ssize_t width  = 72;
+		ssize_t height = 72;
+
+		if ( imageRef.x_resolution > 0 )
+			width = cast(ssize_t)rndtol(imageRef.x_resolution);
+
+		if ( imageRef.y_resolution > 0 )
+			height = cast(ssize_t)rndtol(imageRef.y_resolution);
+
+		return Geometry(width, height);
+	}
+
+	void depth(size_t value)
+	{
+		if ( value > MagickQuantumDepth)
+			value = MagickQuantumDepth;
+
+		imageRef.depth = value;
+		options.depth = value;
+	}
+	size_t depth() const
+	{
+		return imageRef.depth;
+	}
+
+	string directory() const
+	{
+		return to!(string)(imageRef.directory);
+	}
+
+	void endian(EndianType type)
+	{
+		imageRef.endian = type;
+		options.endian = type;
+	}
+	EndianType endian() const
+	{
+		return imageRef.endian;
+	}
+
 	/**
 	 * Colors within this distance are considered equal. 
 	 * A number of algorithms search for a target  color.
diff --git a/dmagick/Options.d b/dmagick/Options.d
index cc41950..1745b64 100644
--- a/dmagick/Options.d
+++ b/dmagick/Options.d
@@ -10,6 +10,7 @@ module dmagick.Options;
 
 import std.conv;
 import std.math;
+import std.string;
 import core.stdc.stdio;
 import core.stdc.string;
 
@@ -27,6 +28,7 @@ import dmagick.c.image;
 import dmagick.c.list;
 import dmagick.c.magickType;
 import dmagick.c.memory;
+import dmagick.c.option;
 import dmagick.c.quantize;
 import dmagick.c.quantum;
 
@@ -138,7 +140,7 @@ class Options
 	}
 
 	/**
-	 * Set the image border color. The default is "#dfdfdf".
+	 * Specifies the image pixel interpretation.
 	 */
 	void colorspace(ColorspaceType space)
 	{
@@ -177,6 +179,42 @@ class Options
 	//
 	//}
 
+	/**
+	 * Define an option. Use this method to set options for
+	 * reading or writing certain image formats. The list of
+	 * supported options changes from release to release.
+	 * For a list of the valid image formats, keys, and values,
+	 * refer to the documentation for the -define option for the
+	 * release of ImageMagick installed on your system.
+	 * Params:
+	 *     format = An image format name such as "ps" or "tiff".
+	 *     key    = A string that identifies the option.
+	 *     vaule  = The value of the option.
+	 */
+	void define(string format, string key, string value = "")
+	{
+		string option = format ~":"~ key ~ "\0";
+
+		SetImageOption(imageInfo, option.ptr, toStringz(value));
+	}
+
+	//TODO: opindex / opiindexassign for the options.
+
+	/**
+	 * Delete an option definition set by define.
+	 * This is not the same as setting the option to a null value.
+	 * The undefine method removes the option name from the list
+	 * of options for the specified format.
+	 *     format = An image format name such as "ps" or "tiff".
+	 *     key    = A string that identifies the option.
+	 */
+	void undefine(string format, string key)
+	{
+		string option = format ~":"~ key ~ "\0";
+
+		DeleteImageOption(imageInfo, option.ptr);
+	}
+
 	/**
 	 * Specifies the vertical and horizontal resolution in pixels.
 	 * The default _density is "72.0x72.0". This attribute can be used
-- 
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