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support deferred DataRequest for PictureObjectModel

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Michael Becker 2022-04-14 00:38:29 -04:00
parent a80f0fa529
commit 31add4cfa4
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GPG Key ID: DA394832305DA332
1 changed files with 37 additions and 6 deletions
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43
Plugins/UniversalEditor.Plugins.Multimedia/ObjectModels/Multimedia/Picture/PictureObjectModel.cs
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@ -22,6 +22,7 @@
using System;
using System.Collections.Generic;
using MBS.Framework.Drawing;
using UniversalEditor.ObjectModels.FileSystem;
namespace UniversalEditor.ObjectModels.Multimedia.Picture
{
@ -48,6 +49,12 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
public List<Color> ColorMap { get; } = new List<Color>();
public event DataRequestEventHandler DataRequest;
protected virtual void OnDataRequest(DataRequestEventArgs e)
{
DataRequest?.Invoke(this, e);
}
/// <summary>
/// Generates a color map as a <see cref="List{T}" /> of the <see cref="Color"/>s used in this <see cref="PictureObjectModel" />.
/// </summary>
@ -93,6 +100,7 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
int index = (x + (y * mvarWidth)) * 4;
bitmapData[x][y] = color;
hasData = true;
int realIndex = (int)(index / 4);
}
@ -110,6 +118,12 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
throw new InvalidOperationException("Out of image space. Try resizing the image");
}
if (!hasData)
{
DataRequestEventArgs e = new DataRequestEventArgs();
OnDataRequest(e);
}
int index = (x + (y * mvarWidth)) * 4;
int realIndex = (int)(index / 4);
if (!bitmapData[x][y].IsEmpty)
@ -125,6 +139,7 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
}
private Color[][] bitmapData = new Color[0][];
private bool hasData = false;
public PictureObjectModel()
{
@ -207,6 +222,12 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
public byte[] ToByteArray(PixelFormat format)
{
if (!hasData)
{
DataRequestEventArgs e = new DataRequestEventArgs();
OnDataRequest(e);
}
// memory goes from left to right, top to bottom
byte[] data = new byte[mvarWidth * mvarHeight * 4];
int i = 0;
@ -251,14 +272,25 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
if (width == 0 || height == 0) return null;
PictureObjectModel pic = new PictureObjectModel();
pic.Width = width;
pic.Height = height;
pic.LoadByteArray(data, width, height);
return pic;
}
private void LoadByteArray(byte[] data, int width, int height)
{
Width = width;
Height = height;
LoadByteArray(data);
}
private void LoadByteArray(byte[] data)
{
// memory goes from left to right, top to bottom
int i = 0;
for (int h = 0; h < height; h++)
for (int h = 0; h < Height; h++)
{
for (int w = 0; w < width; w++)
for (int w = 0; w < Width; w++)
{
byte b = data[i];
byte g = data[i + 1];
@ -266,12 +298,11 @@ namespace UniversalEditor.ObjectModels.Multimedia.Picture
byte a = data[i + 3];
Color color = Color.FromRGBAByte(r, g, b, a);
pic.SetPixel(color, w, h);
SetPixel(color, w, h);
i += 4;
}
}
return pic;
}
public int GetStride(int bitsPerPixel)