protected override void GUIUpdate()
{
EditorGUI.BeginChangeCheck();
{
EditorGUILayout.BeginVertical();
{
EditorGUI.BeginChangeCheck();
filterMode = (FilterMode)EditorGUILayout.EnumPopup(filterMode);
if (EditorGUI.EndChangeCheck())
{
texture.filterMode = filterMode;
}
gradient = (Gradient)gradientField.Invoke(null, new object[] { "", gradient, null });
if (oldGradient != null && !gradient.Compare(oldGradient))
{
needUpdate = true;
}
if (e.type == EventType.Repaint)
{
update = false;
}
}
EditorGUILayout.EndVertical();
if (e.type == EventType.KeyDown)
{
if (e.keyCode == KeyCode.Return || e.keyCode == KeyCode.KeypadEnter || e.keyCode == KeyCode.Escape)
{
e.Use();
}
}
EditorGUIUtility.labelWidth = 100;
debug = EditorGUILayout.Toggle("debug", debug);
}
if (EditorGUI.EndChangeCheck())
{
SendUpdate("SamplerSettingsUpdate");
}
if (needUpdate && e.type != EventType.Layout)
{
GUI.changed = true;
needUpdate = false;
//for an unknown reason, EditorWindow.SendEvent dooes not works with gradient field
//so here is a workaround to update the main window:
if (windowToUpdate != null)
{
update = true;
windowToUpdate.Repaint();
}
}
oldGradient = (SerializableGradient)gradient;
}
public void Sampler2DPreview(GUIContent prefix, Sampler2D samp, bool update, bool settings = true, FilterMode fm = FilterMode.Bilinear)
{
int previewSize = (int)currentWindowRect.width - 20 - 20; //padding + texture margin
var e = Event.current;
if (samp == null)
{
return;
}
if (prefix != null && !String.IsNullOrEmpty(prefix.text))
{
EditorGUILayout.LabelField(prefix);
}
var fieldSettings = GetGUISettingData(() => {
var state = new PWGUISettings();
state.filterMode = fm;
state.debug = false;
state.gradient = new SerializableGradient(
PWUtils.CreateGradient(
new KeyValuePair <float, Color>(0, Color.black),
new KeyValuePair <float, Color>(1, Color.white)
)
);
return(state);
});
//recreated texture if it has been destoryed:
if (fieldSettings.texture == null)
{
fieldSettings.texture = new Texture2D(previewSize, previewSize, TextureFormat.RGBA32, false);
fieldSettings.texture.filterMode = fieldSettings.filterMode;
}
//same for the gradient:
if (fieldSettings.gradient == null || fieldSettings.gradient.alphaKeys == null)
{
fieldSettings.gradient = fieldSettings.serializableGradient;
}
Texture2D tex = fieldSettings.texture;
Gradient gradient = fieldSettings.gradient;
if (samp.size != tex.width)
{
tex.Resize(samp.size, samp.size, TextureFormat.RGBA32, false);
}
Rect previewRect = EditorGUILayout.GetControlRect(GUILayout.ExpandWidth(true), GUILayout.Height(0));
if (previewRect.width > 2)
{
fieldSettings.savedRect = previewRect;
}
TexturePreview(tex, false, false, false);
//draw the settings window
if (settings && fieldSettings.active)
{
PWPopup.AddToRender(fieldSettings, "Sampler 2D settings", () => {
EditorGUILayout.BeginVertical();
{
EditorGUI.BeginChangeCheck();
fieldSettings.filterMode = (FilterMode)EditorGUILayout.EnumPopup(fieldSettings.filterMode);
if (EditorGUI.EndChangeCheck())
{
tex.filterMode = fieldSettings.filterMode;
}
gradient = (Gradient)gradientField.Invoke(null, new object[] { "", gradient, null });
if (!gradient.Compare(fieldSettings.serializableGradient))
{
fieldSettings.update = true;
}
fieldSettings.serializableGradient = (SerializableGradient)gradient;
}
EditorGUILayout.EndVertical();
if (e.type == EventType.KeyDown && fieldSettings.active)
{
if (e.keyCode == KeyCode.Return || e.keyCode == KeyCode.KeypadEnter || e.keyCode == KeyCode.Escape)
{
fieldSettings.InActive();
e.Use();
}
}
EditorGUIUtility.labelWidth = 100;
fieldSettings.debug = EditorGUILayout.Toggle("debug", fieldSettings.debug);
if (GUILayout.Button("force update"))
{
fieldSettings.update = true;
}
});
}
if (settings)
{
//draw the setting icon and manage his events
int icSettingsSize = 16;
int icSettingsPadding = 4;
Rect icSettingsRect = new Rect(previewRect.x + previewRect.width - icSettingsSize - icSettingsPadding, previewRect.y + icSettingsPadding, icSettingsSize, icSettingsSize);
GUI.DrawTexture(icSettingsRect, ic_settings);
if (e.type == EventType.MouseDown && e.button == 0)
{
if (icSettingsRect.Contains(e.mousePosition))
{
fieldSettings.Invert(null);
e.Use();
}
else if (fieldSettings.active)
{
fieldSettings.InActive();
e.Use();
}
}
}
if (!settings && fieldSettings.texture.filterMode != fm)
{
fieldSettings.texture.filterMode = fm;
}
//update the texture with the gradient
if (update || fieldSettings.update)
{
samp.Foreach((x, y, val) => {
tex.SetPixel(x, y, gradient.Evaluate(Mathf.Clamp01(val)));
}, true);
tex.Apply();
fieldSettings.update = false;
}
if (fieldSettings.debug)
{
Vector2 pixelPos = e.mousePosition - fieldSettings.savedRect.position;
pixelPos *= samp.size / fieldSettings.savedRect.width;
EditorGUILayout.LabelField("Sampler2D min: " + samp.min + ", max: " + samp.max);
if (pixelPos.x >= 0 && pixelPos.y >= 0 && pixelPos.x < samp.size && pixelPos.y < samp.size)
{
if (e.isMouse)
{
e.Use();
}
EditorGUILayout.LabelField("(" + (int)pixelPos.x + ", " + (int)pixelPos.y + "): " + samp[(int)pixelPos.x, (int)pixelPos.y]);
}
else
{
EditorGUILayout.LabelField("(NA, NA): NA");
}
}
}
