/*
 * This file is part of gtkD.
 *
 * gtkD is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version, with
 * some exceptions, please read the COPYING file.
 *
 * gtkD is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with gtkD; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */

// generated automatically - do not change
// find conversion definition on APILookup.txt
// implement new conversion functionalities on the wrap.utils pakage


module gtk.HSV;

private import glib.ConstructionException;
private import gobject.ObjectG;
private import gobject.Signals;
private import gtk.Widget;
private import gtkc.gtk;
public  import gtkc.gtktypes;
private import std.algorithm;


/**
 * #GtkHSV is the “color wheel” part of a complete color selector widget.
 * It allows to select a color by determining its HSV components in an
 * intuitive way. Moving the selection around the outer ring changes the hue,
 * and moving the selection point inside the inner triangle changes value and
 * saturation.
 * 
 * #GtkHSV has been deprecated together with #GtkColorSelection, where
 * it was used.
 */
public class HSV : Widget
{
	/** the main Gtk struct */
	protected GtkHSV* gtkHSV;

	/** Get the main Gtk struct */
	public GtkHSV* getHSVStruct()
	{
		return gtkHSV;
	}

	/** the main Gtk struct as a void* */
	protected override void* getStruct()
	{
		return cast(void*)gtkHSV;
	}

	protected override void setStruct(GObject* obj)
	{
		gtkHSV = cast(GtkHSV*)obj;
		super.setStruct(obj);
	}

	/**
	 * Sets our main struct and passes it to the parent class.
	 */
	public this (GtkHSV* gtkHSV, bool ownedRef = false)
	{
		this.gtkHSV = gtkHSV;
		super(cast(GtkWidget*)gtkHSV, ownedRef);
	}


	/** */
	public static GType getType()
	{
		return gtk_hsv_get_type();
	}

	/**
	 * Creates a new HSV color selector.
	 *
	 * Returns: A newly-created HSV color selector.
	 *
	 * Since: 2.14
	 *
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this()
	{
		auto p = gtk_hsv_new();
		
		if(p is null)
		{
			throw new ConstructionException("null returned by new");
		}
		
		this(cast(GtkHSV*) p);
	}

	/**
	 * Converts a color from HSV space to RGB.
	 *
	 * Input values must be in the [0.0, 1.0] range;
	 * output values will be in the same range.
	 *
	 * Params:
	 *     h = Hue
	 *     s = Saturation
	 *     v = Value
	 *     r = Return value for the red component
	 *     g = Return value for the green component
	 *     b = Return value for the blue component
	 *
	 * Since: 2.14
	 */
	public static void toRgb(double h, double s, double v, out double r, out double g, out double b)
	{
		gtk_hsv_to_rgb(h, s, v, &r, &g, &b);
	}

	/**
	 * Queries the current color in an HSV color selector.
	 * Returned values will be in the [0.0, 1.0] range.
	 *
	 * Params:
	 *     h = Return value for the hue
	 *     s = Return value for the saturation
	 *     v = Return value for the value
	 *
	 * Since: 2.14
	 */
	public void getColor(out double h, out double s, out double v)
	{
		gtk_hsv_get_color(gtkHSV, &h, &s, &v);
	}

	/**
	 * Queries the size and ring width of an HSV color selector.
	 *
	 * Params:
	 *     size = Return value for the diameter of the hue ring
	 *     ringWidth = Return value for the width of the hue ring
	 *
	 * Since: 2.14
	 */
	public void getMetrics(out int size, out int ringWidth)
	{
		gtk_hsv_get_metrics(gtkHSV, &size, &ringWidth);
	}

	/**
	 * An HSV color selector can be said to be adjusting if multiple rapid
	 * changes are being made to its value, for example, when the user is
	 * adjusting the value with the mouse. This function queries whether
	 * the HSV color selector is being adjusted or not.
	 *
	 * Returns: %TRUE if clients can ignore changes to the color value,
	 *     since they may be transitory, or %FALSE if they should consider
	 *     the color value status to be final.
	 *
	 * Since: 2.14
	 */
	public bool isAdjusting()
	{
		return gtk_hsv_is_adjusting(gtkHSV) != 0;
	}

	/**
	 * Sets the current color in an HSV color selector.
	 * Color component values must be in the [0.0, 1.0] range.
	 *
	 * Params:
	 *     h = Hue
	 *     s = Saturation
	 *     v = Value
	 *
	 * Since: 2.14
	 */
	public void setColor(double h, double s, double v)
	{
		gtk_hsv_set_color(gtkHSV, h, s, v);
	}

	/**
	 * Sets the size and ring width of an HSV color selector.
	 *
	 * Params:
	 *     size = Diameter for the hue ring
	 *     ringWidth = Width of the hue ring
	 *
	 * Since: 2.14
	 */
	public void setMetrics(int size, int ringWidth)
	{
		gtk_hsv_set_metrics(gtkHSV, size, ringWidth);
	}

	protected class OnChangedDelegateWrapper
	{
		static OnChangedDelegateWrapper[] listeners;
		void delegate(HSV) dlg;
		gulong handlerId;
		
		this(void delegate(HSV) dlg)
		{
			this.dlg = dlg;
			this.listeners ~= this;
		}
		
		void remove(OnChangedDelegateWrapper source)
		{
			foreach(index, wrapper; listeners)
			{
				if (wrapper.handlerId == source.handlerId)
				{
					listeners[index] = null;
					listeners = std.algorithm.remove(listeners, index);
					break;
				}
			}
		}
	}

	/** */
	gulong addOnChanged(void delegate(HSV) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
	{
		auto wrapper = new OnChangedDelegateWrapper(dlg);
		wrapper.handlerId = Signals.connectData(
			this,
			"changed",
			cast(GCallback)&callBackChanged,
			cast(void*)wrapper,
			cast(GClosureNotify)&callBackChangedDestroy,
			connectFlags);
		return wrapper.handlerId;
	}
	
	extern(C) static void callBackChanged(GtkHSV* hsvStruct, OnChangedDelegateWrapper wrapper)
	{
		wrapper.dlg(wrapper.outer);
	}
	
	extern(C) static void callBackChangedDestroy(OnChangedDelegateWrapper wrapper, GClosure* closure)
	{
		wrapper.remove(wrapper);
	}

	protected class OnMoveDelegateWrapper
	{
		static OnMoveDelegateWrapper[] listeners;
		void delegate(GtkDirectionType, HSV) dlg;
		gulong handlerId;
		
		this(void delegate(GtkDirectionType, HSV) dlg)
		{
			this.dlg = dlg;
			this.listeners ~= this;
		}
		
		void remove(OnMoveDelegateWrapper source)
		{
			foreach(index, wrapper; listeners)
			{
				if (wrapper.handlerId == source.handlerId)
				{
					listeners[index] = null;
					listeners = std.algorithm.remove(listeners, index);
					break;
				}
			}
		}
	}

	/** */
	gulong addOnMove(void delegate(GtkDirectionType, HSV) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
	{
		auto wrapper = new OnMoveDelegateWrapper(dlg);
		wrapper.handlerId = Signals.connectData(
			this,
			"move",
			cast(GCallback)&callBackMove,
			cast(void*)wrapper,
			cast(GClosureNotify)&callBackMoveDestroy,
			connectFlags);
		return wrapper.handlerId;
	}
	
	extern(C) static void callBackMove(GtkHSV* hsvStruct, GtkDirectionType object, OnMoveDelegateWrapper wrapper)
	{
		wrapper.dlg(object, wrapper.outer);
	}
	
	extern(C) static void callBackMoveDestroy(OnMoveDelegateWrapper wrapper, GClosure* closure)
	{
		wrapper.remove(wrapper);
	}

	/**
	 * Converts a color from RGB space to HSV.
	 *
	 * Input values must be in the [0.0, 1.0] range;
	 * output values will be in the same range.
	 *
	 * Params:
	 *     r = Red
	 *     g = Green
	 *     b = Blue
	 *     h = Return value for the hue component
	 *     s = Return value for the saturation component
	 *     v = Return value for the value component
	 *
	 * Since: 2.14
	 */
	public static void rgbToHsv(double r, double g, double b, out double h, out double s, out double v)
	{
		gtk_rgb_to_hsv(r, g, b, &h, &s, &v);
	}
}