/// <summary>
/// Creates a new material parameter GUI.
/// </summary>
/// <param name="shaderParam">Shader parameter to create the GUI for. Must be of texture type.</param>
/// <param name="material">Material the parameter is a part of.</param>
/// <param name="layout">Layout to append the GUI elements to.</param>
internal MaterialParamTextureGUI(ShaderParameter shaderParam, Material material, GUILayout layout)
: base(shaderParam)
{
LocString title = new LocEdString(shaderParam.name);
GUITextureFieldType type = shaderParam.type == ShaderParameterType.Texture2D ?
GUITextureFieldType.TextureOrSpriteTexture :
GUITextureFieldType.Texture;
guiElem = new GUITextureField(type, title);
switch (shaderParam.type)
{
case ShaderParameterType.Texture2D:
case ShaderParameterType.Texture3D:
case ShaderParameterType.TextureCube:
guiElem.OnChanged += (x) =>
{
string path = ProjectLibrary.GetPath(x.UUID);
if (!string.IsNullOrEmpty(path))
{
if (ProjectLibrary.GetEntry(path) is FileEntry fileEntry)
{
if (fileEntry.ResourceMetas.Length > 0)
{
ResourceMeta meta = fileEntry.ResourceMetas[0];
if (meta.ResType == ResourceType.SpriteTexture)
{
material.SetSpriteTexture(shaderParam.name, x.As <SpriteTexture>());
}
else if (meta.ResType == ResourceType.Texture)
{
material.SetTexture(shaderParam.name, x.As <Texture>());
}
}
}
}
else
{
material.SetTexture(shaderParam.name, null);
}
EditorApplication.SetDirty(material);
};
break;
}
layout.AddElement(guiElem);
}
private static extern void Internal_CreateInstance(GUITextureField instance, GUITextureFieldType type,
ref GUIContent title, int titleWidth, string style, GUIOption[] options, bool withTitle);
/// <summary>
/// Creates a new texture field element without a label.
/// </summary>
/// <param name="type">Determines the type of textures should the field accept.</param>
/// <param name="style">Optional style to use for the element. Style controls the look of the element, as well as
/// default layout options. Style will be retrieved from the active GUISkin. If not specified
/// default element style is used.</param>
/// <param name="options">Options that allow you to control how is the element positioned and sized. This will
/// override any similar options set by style.</param>
public GUITextureField(GUITextureFieldType type, string style = "", params GUIOption[] options)
{
GUIContent emptyContent = new GUIContent();
Internal_CreateInstance(this, type, ref emptyContent, 0, style, options, false);
}
/// <summary>
/// Creates a new texture field element with a label.
/// </summary>
/// <param name="type">Determines the type of textures should the field accept.</param>
/// <param name="title">Content to display on the label.</param>
/// <param name="titleWidth">Width of the title label in pixels.</param>
/// <param name="style">Optional style to use for the element. Style controls the look of the element, as well as
/// default layout options. Style will be retrieved from the active GUISkin. If not specified
/// default element style is used.</param>
/// <param name="options">Options that allow you to control how is the element positioned and sized. This will
/// override any similar options set by style.</param>
public GUITextureField(GUITextureFieldType type, GUIContent title,
int titleWidth = 100, string style = "", params GUIOption[] options)
{
Internal_CreateInstance(this, type, ref title, titleWidth, style, options, true);
}
