TextureBox?

[Shadowblitz16]

is it possible to make a monogame texturebox control? I tried to derive from DrawWindow and implement my wrapper class...

    [Serializable]
    public class Img : IDrawable
    {
        Texture2D Texture;

        public event EventHandler<EventArgs> DrawOrderChanged;
        public event EventHandler<EventArgs> VisibleChanged;

        public int W { get; set; }
        public int H { get; set; }

        public int DrawOrder => 0;

        public bool Visible => true;

        internal Img()
        {
            Texture = new Texture2D(Sys.Content.GetGraphicsDevice(), 8, 8);
            W = Texture.Width;
            H = Texture.Height;
        }
        internal Img(string filename)
        {
            FileStream stream = File.Open(filename, FileMode.Open);
            Texture = Texture2D.FromStream(Sys.Content.GetGraphicsDevice(), stream);
            W = Texture.Width;
            H = Texture.Height;
            stream.Dispose();

        }
        internal Img(int w, int h)
        {
            Texture = new Texture2D(Sys.Content.GetGraphicsDevice(), W, H);
            W = Texture.Width;
            H = Texture.Height;
        }

        public static implicit operator Img(Texture2D tex)
        {
            var img = new Img();
            img.Texture = tex;
            return img;
        }
        public static implicit operator Texture2D(Img img)
        {
            return img.Texture;
        }

        public void Draw(GameTime gameTime)
        {
            Gfx.Draw(this, 0, 0, 0, 0, W, H, 0);
        }
    }

however when using a ImageConverter attribute it makes the Img property unable to load a image.

using PureFramework.Library;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PureEditor.Controls
{
    public class TextureBox : MonoGame.Forms.Controls.DrawWindow
    {
        public TextureBox()
        {
        }

        [TypeConverter(typeof(ImageConverter))]
        public Img Img { get; set; }

    }
}

is there a way around this?

[BlizzCrafter]

Can you please elaborate a bit more what exactly you are trying to achieve?

Do you want to draw a Texture2D to a MonoGame.Forms control? Do you want to convert a System.Drawing.Image to a Texture2D?

What result are you expecting?

[Shadowblitz16]

I basically want a picturebox but for monogame's Texture2D

[BlizzCrafter]

Take a look at these lines:

https://github.com/sqrMin1/MonoGame.Forms/blob/master/MonoGame.Forms.GL/SwapChainRenderTarget.GL.cs#L67-#L85

They are converting the back buffer of the GraphicsDecvice to a regular Bitmap. This Bitmap can then be drawn to a PictureBox.

[Shadowblitz16]

how would one convert the data back to the texture2d once it's edited? I am trying to make a tileset editor in which I can edit colors of a texture2d

[BlizzCrafter]

You could try this from stackoverflow: https://stackoverflow.com/a/2870399

Another option would be to create a more "native" way by creating an array of colors and manipulating each pixel with the mouse cursor.

After that you simply create a new Texture2D with that modified color array.

Something like this:

1. Color[] tcolor=new Color[texture.Width * texture.Height]; texture.GetData(tcolor);

2. modify color array

3. texture.SetData(tcolor);

[Shadowblitz16]

@sqrMin1 so is there a way for the winforms designer to treat my wrapper image class as a system.drawing.bitmap? that was the original issue.

[BlizzCrafter]

No, in the moment the library is not capable of implicity convert Texture2Ds into Bitmaps and vice versa.

[Shadowblitz16]

is there a way to allow the texture to be loaded or set in the winforms designer at all? or is this just not possible altogether?

[BlizzCrafter]

It's possible to draw an Image in the control during design-time: https://github.com/sqrMin1/MonoGame.Forms/blob/master/MonoGame.Forms.DX/Controls/GraphicsDeviceControl.cs#L405

We are using this technique to draw the MonoGame logo when a MonoGameControl was placed.

Other than this you can't directly set a Texture2D and let this draw to the control during design-time.

[trigger-segfault]

As a suggestion to Shadowblitz16, you could give your control design-time properties where it will display a System.Drawing.Bitmap instead of a Microsoft.Xna.Framework.Graphics.Texture2D. It is 100% possible to load an .xnb Texture2D file and convert it to a Bitmap without using the GraphicsDevice.

You can find information about reading an XNA/MonoGame texture resource from repositories like TExtract (in Java), or TConvert (C# port of TExtract). The XnbExtractor handles the major functionality, but you'll also need the LzxDecoder (and friends) in the same folder which is used to decompress certain files. (Compression is not mandatory for .xnb files.)

[Shadowblitz16]

@sqrMin1 the issue is not drawing the image to the picturebox, its allowing the property inspector to set, get and create a new Texture2D like what it allows for a bitmap.

I don't necessarily need it to be converted to a bitmap. just the inspector to treat it as one.

@trigger-segfault that would be cool I might look into it later.