mattercontrol/MatterControlLib/PartPreviewWindow/ItemColorButton.cs

/*
Copyright (c) 2018, John Lewin
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
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   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
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*/

using System;
using System.Linq;
using MatterHackers.Agg;
using MatterHackers.Agg.Image;
using MatterHackers.Agg.Platform;
using MatterHackers.Agg.UI;
using MatterHackers.DataConverters3D;
using MatterHackers.Localizations;
using MatterHackers.MatterControl.CustomWidgets;
using MatterHackers.MatterControl.CustomWidgets.ColorPicker;

namespace MatterHackers.MatterControl.PartPreviewWindow
{
	public class ItemColorButton : PopupButton
	{
		private ColorButton colorButton;

		public event EventHandler ColorChanged;

		public ItemColorButton(ThemeConfig theme, Color selectedColor)
		{
			this.ToolTipText = "Color".Localize();
			var scaledButtonSize = 14 * GuiWidget.DeviceScale;

			Width = 30 * GuiWidget.DeviceScale;
			Height = 30 * GuiWidget.DeviceScale;

			var menuTheme = AppContext.MenuTheme;

			MakeScrollable = false;

			PopupHAnchor = HAnchor.Fit;
			PopupVAnchor = VAnchor.Fit;

			this.DynamicPopupContent = () =>
			{
#if true
				return NewColorSelector(theme, selectedColor, menuTheme);
#else
				return new ColorSwatchSelector(menuTheme,
					buttonSize: 16,
					buttonSpacing: new BorderDouble(1, 1, 0, 0),
					colorNotifier: (newColor) => colorButton.BackgroundColor = newColor)
				{
					Padding = theme.DefaultContainerPadding,
					BackgroundColor = menuTheme.BackgroundColor,
					HAnchor = HAnchor.Fit,
					VAnchor = VAnchor.Fit
				};
#endif
			};

			colorButton = new ColorButton(selectedColor == Color.Transparent ? theme.SlightShade : selectedColor)
			{
				Width = scaledButtonSize,
				Height = scaledButtonSize,
				HAnchor = HAnchor.Center,
				VAnchor = VAnchor.Center,
				DisabledColor = theme.MinimalShade,
				Border = 1,
				BorderColor = theme.BorderColor20,
				Selectable = false
			};

			colorButton.BackgroundColorChanged += (s, e) =>
			{
				ColorChanged?.Invoke(this, null);
			};

			this.AddChild(colorButton);
		}

		private GuiWidget NewColorSelector(ThemeConfig theme, Color selectedColor, ThemeConfig menuTheme)
		{
			var content = new FlowLayoutWidget(FlowDirection.LeftToRight)
			{
				Padding = new BorderDouble(5),
				BackgroundColor = menuTheme.BackgroundColor,
			};

			var pickerContainer = content.AddChild(new GuiWidget(128 * DeviceScale, 128 * DeviceScale));
			var picker = pickerContainer.AddChild(new RadialColorPicker()
			{
				SelectedColor = selectedColor.WithAlpha(255),
				BackgroundColor = Color.Transparent,
				HAnchor = HAnchor.Stretch,
				VAnchor = VAnchor.Stretch,
			}) as RadialColorPicker;
			picker.SelectedColorChanged += (s, newColor) => colorButton.BackgroundColor = picker.SelectedColor;

			var rightContent = content.AddChild(new FlowLayoutWidget(FlowDirection.TopToBottom)
			{
				Padding = new BorderDouble(5),
				VAnchor = VAnchor.Stretch,
			});

			var colorSwatch = rightContent.AddChild(new GuiWidget(10, 10)
			{
				HAnchor = HAnchor.Stretch,
				VAnchor = VAnchor.Stretch,
				BackgroundColor = picker.SelectedColor
			});

			picker.IncrementalColorChanged += (s, newColor) => colorSwatch.BackgroundColor = picker.SelectedColor;

			var resetButton = rightContent.AddChild(new TextIconButton("Clear".Localize(), StaticData.Instance.LoadIcon("transparent_grid.png", 16, 16), theme)
			{
				Margin = 0,
				HAnchor = HAnchor.Fit,
				VAnchor = VAnchor.Absolute
			});
			resetButton.Click += (s, e) =>
			{
				// The colorChanged action displays the given color - use .MinimalHighlight rather than no color
				colorButton.BackgroundColor = Color.Transparent;
				picker.SetColorWithoutChangeEvent(Color.White);
			};

			var selectButton = rightContent.AddChild(new TextIconButton("Select".Localize(), StaticData.Instance.LoadIcon("eye_dropper.png", 16, 16, theme.InvertIcons), theme)
			{
				Margin = 0,
				HAnchor = HAnchor.Fit,
				VAnchor = VAnchor.Absolute
			});
			selectButton.Click += (s, e) =>
			{
				// change to an eye dropper mode in the design view to allow for color selection
			};

			if (selectButton.Width < resetButton.Width)
			{
				selectButton.HAnchor = HAnchor.Stretch;
			}
			else
			{
				resetButton.HAnchor = HAnchor.Stretch;
			}

			return content;
		}

		public override void OnLoad(EventArgs args)
		{
			var firstBackgroundColor = this.Parents<GuiWidget>().Where(p => p.BackgroundColor.Alpha0To1 == 1).FirstOrDefault()?.BackgroundColor;
			if (firstBackgroundColor != null)
			{
				// Resolve alpha
				this.HoverColor = new BlenderRGBA().Blend(firstBackgroundColor.Value, this.HoverColor);
			}

			base.OnLoad(args);
		}

		public Color Color
		{
			get => colorButton.BackgroundColor;
			set => colorButton.BackgroundColor = value;
		}
	}
}