public static void SetGradientToTexture(GradientField gradient, Texture2D targetTexture)
{
int width = targetTexture.width;
Color[] colors = new Color[width];
for (int i = 0; i < width; i++)
{
float lerp = (float)i / (width - 1);
colors[i] = gradient.Evaluate(lerp);
}
targetTexture.SetPixels(colors);
targetTexture.Apply();
}
bool CheckMouse(Rect gradientArea)
{
bool needsUpdate = false;
if (isDragging && selectedProperty != null)
{
var array = (editMode == EditMode.alpha ? alphaArrayProperty : colorArrayProperty);
switch (Event.current.type)
{
case EventType.MouseDrag:
float targetTime = Mathf.InverseLerp(gradientArea.xMin, gradientArea.xMax, Event.current.mousePosition.x);
selectedProperty.FindPropertyRelative("time").floatValue = targetTime * 100;
needsUpdate = true;
float handleCenter = editMode == EditMode.alpha ? gradientArea.yMin - 9 : gradientArea.yMax + 9;
isDraggingToRemove = Mathf.Abs(handleCenter - Event.current.mousePosition.y) > 20 && array.arraySize > 1;
break;
case EventType.MouseUp:
if (isDragging)
{
DateTime time = DateTime.Now;
if (lastMouseUp != null && (lastMouseUp - time).TotalMilliseconds < 500)
{
/*
* Being unable to double click the selected handler and open the color picker
*/
}
lastMouseUp = time;
if (isDraggingToRemove)
{
DeleteSelectedItem();
isDraggingToRemove = false;
needsUpdate = true;
}
isDragging = false;
}
break;
}
}
gradientArea = ExpandRect(gradientArea, 0, -5);
EditorGUIUtility.AddCursorRect(gradientArea, MouseCursor.Link);
if (GUI.Button(gradientArea, GUIContent.none, GUIStyle.none)) //Invisible button for color picking
{
float targetTime = Mathf.InverseLerp(gradientArea.xMin, gradientArea.xMax, Event.current.mousePosition.x);
var pickedColor = currentGradient.Evaluate(targetTime);
if (editMode == EditMode.alpha)
{
selectedProperty.FindPropertyRelative("alpha").floatValue = pickedColor.a;
}
else
{
pickedColor.a = 1;
selectedProperty.FindPropertyRelative("color").colorValue = pickedColor;
}
}
return(needsUpdate);
}