public void Begin(Rect zoomRect)
{
// Ends group that Unity implicity begins for every editor window
zoomAreaRect = zoomRect;
GUI.EndGroup();
Vector2 offset = GetContentOffset();
//float xFactor = offset.x / bgTexture.width;
//float yFactor = offset.y / bgTexture.height;
//GUI.DrawTextureWithTexCoords(zoomAreaRect, bgTexture, // texcoords are between 0 and 1! 1 == fullwrap!
// new Rect(xFactor, -yFactor, zoomAreaRect.width / (bgTexture.width * zoomScale),
// zoomAreaRect.height / (bgTexture.height * zoomScale)));
GraphBackground.DrawGraphBackground(zoomAreaRect, -offset, zoomScale);
Rect clippedArea = ScaleSizeBy(zoomAreaRect, 1.0f / zoomScale, new Vector2(zoomAreaRect.xMin, zoomAreaRect.yMin));
GUI.BeginGroup(clippedArea);
prevGUIMatrix = GUI.matrix;
Matrix4x4 translation = Matrix4x4.TRS(
new Vector2(clippedArea.xMin, clippedArea.yMin), Quaternion.identity, Vector3.one);
Matrix4x4 scale = Matrix4x4.Scale(new Vector3(zoomScale, zoomScale, 1f));
GUI.matrix = translation * scale * translation.inverse * GUI.matrix;
}
public override void DrawPreview(Rect rect)
{
GUIStyle style = new GUIStyle(GUI.skin.label)
{
fontSize = 12,
alignment = TextAnchor.MiddleCenter
};
rect = GetCenteredRect(rect);
// Draw background of the rect we plot points in
GraphBackground.DrawGraphBackground(rect, rect);
//EditorGUI.DrawRect(rect, new Color(0.9f, 0.9f, 0.9f));
float dotSize = 15; // size in pixels of the point we draw
float halfDotSize = dotSize * 0.5f;
float viewportSize = 5; // size of our viewport in Units
// a value of 10 means we can display any vector from -5,-5 to 5,5 within our rect.
// change this value for your needs
for (int i = 0; i < Pattern.arraySize; i++)
{
SerializedProperty vectorProperty = Pattern.GetArrayElementAtIndex(i);
Vector2 vector = new Vector2(vectorProperty.vector2Value.x, vectorProperty.vector2Value.y);
Vector2 normalizedPosition = vector / new Vector2(viewportSize, -viewportSize);
if (Mathf.Abs(normalizedPosition.x) > 0.5f || Mathf.Abs(normalizedPosition.y) > 0.5f)
{
// don't draw points outside our viewport
continue;
}
float l = (float)i / (float)Pattern.arraySize;
Color32 lerpedColor = Color32.Lerp(low, high, l);
Vector2 pixelPosition = rect.center + rect.size * normalizedPosition;
EditorGUI.DrawRect(new Rect(pixelPosition.x - halfDotSize, pixelPosition.y - halfDotSize, dotSize, dotSize), lerpedColor);
EditorGUI.LabelField(new Rect(pixelPosition.x - halfDotSize, pixelPosition.y - halfDotSize, dotSize, dotSize), i.ToString(), style);
}
}