public override void OnInspector()
{
var dragRect = SGT_RectHelper.RemovePx(SGT_EditorGUI.Reserve(0.0f), 20.0f, 20.0f, 0.0f, 0.0f);
var mousePosition = SGT_EditorGUI.GetHorizontalSliderAcross(dragRect, Event.current.mousePosition.x);
// Draw alpha stuff
if (Target.HasAlpha == true)
{
// Space for slider
SGT_EditorGUI.Reserve(16.0f);
var alphaNodes = Target.AlphaNodes;
var alphaRect = SGT_EditorGUI.Reserve(16.0f);
var alphaRect2 = SGT_RectHelper.ExpandPx(alphaRect, 20.0f);
alphaRect = SGT_RectHelper.RemovePx(alphaRect, 20.0f, 20.0f, 0.0f, 0.0f);
SGT_EditorGUI.DrawHorizontalSlider(alphaRect);
// Draw alpha nodes
foreach (var node in alphaNodes)
{
bool selected = node == selectedAlphaNode;
Rect thumb;
if (selected == false || removeAlphaNode == false)
{
SGT_EditorGUI.BeginFrozen(selected);
{
thumb = SGT_EditorGUI.DrawHorizontalSliderThumb(alphaRect, node.Position);
}
SGT_EditorGUI.EndFrozen();
if (selected == true)
{
var sliderRect = new Rect(0.0f, 0.0f, 40.0f, 16.0f);
sliderRect.center = new Vector2(thumb.x, thumb.yMin - 13.0f);
var oldAlpha = node.Alpha;
node.SetAlpha(Target, GUI.HorizontalSlider(sliderRect, node.Alpha, 0.0f, 1.0f));
SGT_EditorGUI.MarkModified(Mathf.Approximately(oldAlpha, node.Alpha) == false, IsField);
}
}
}
// Handle event specific stuff
switch (Event.current.type)
{
case EventType.MouseDown:
if (alphaRect.Contains(Event.current.mousePosition) == true)
{
selectedAlphaNode = Target.FindClosestAlphaNode(mousePosition);
removeAlphaNode = false;
if (selectedAlphaNode != null)
{
var distance = Mathf.Abs(selectedAlphaNode.Position - mousePosition);
var distancePx = distance * alphaRect.width;
if (distancePx > 20.0f)
{
selectedAlphaNode = Target.AddAlphaNode(1.0f, mousePosition);
SGT_EditorGUI.MarkModified(true, IsField);
}
}
else
{
selectedAlphaNode = Target.AddAlphaNode(1.0f, mousePosition);
SGT_EditorGUI.MarkModified(true, IsField);
}
if (selectedAlphaNode.Locked == true)
{
draggingAlphaNode = false;
selectedAlphaNode = null;
}
else
{
draggingAlphaNode = true;
}
Repaint();
}
break;
case EventType.MouseUp:
if (selectedAlphaNode != null && draggingAlphaNode == true && removeAlphaNode == true)
{
Target.RemoveAlphaNode(selectedAlphaNode);
SGT_EditorGUI.MarkModified(true, IsField);
}
draggingAlphaNode = false;
removeAlphaNode = false;
break;
case EventType.MouseDrag:
if (selectedAlphaNode != null && draggingAlphaNode == true)
{
var oldPosition = selectedAlphaNode.Position;
selectedAlphaNode.SetPosition(Target, mousePosition);
SGT_EditorGUI.MarkModified(Mathf.Approximately(oldPosition, selectedAlphaNode.Position) == false, IsField);
// Dragged out?
removeAlphaNode = alphaRect2.Contains(Event.current.mousePosition) == false;
Repaint();
}
break;
}
}
// Draw gradient
{
var gradientRect = SGT_EditorGUI.Reserve(50.0f);
gradientRect = SGT_RectHelper.RemovePx(gradientRect, 20.0f, 20.0f, 0.0f, 0.0f);
var colours = Target.CalculateColours(0.0f, 1.0f, 256);
var texture = SGT_ColourGradient.AllocateTexture(256);
for (var x = 0; x < 256; x++)
{
texture.SetPixel(x, 0, colours[x]);
}
texture.Apply();
SGT_EditorGUI.DrawTiledTexture(gradientRect, SGT_Helper.CheckerTexture);
GUI.DrawTexture(gradientRect, texture);
SGT_Helper.DestroyObject(texture);
}
// Draw colour stuff
{
var colourNodes = Target.ColourNodes;
var colourRect = SGT_EditorGUI.Reserve(16.0f);
var colourRect2 = SGT_RectHelper.ExpandPx(colourRect, 20.0f);
colourRect = SGT_RectHelper.RemovePx(colourRect, 20.0f, 20.0f, 0.0f, 0.0f);
SGT_EditorGUI.DrawHorizontalSlider(colourRect);
// Draw colour keys
foreach (var node in colourNodes)
{
bool selected = node == selectedColourNode;
Rect thumb;
if (selected == false || removeColourNode == false)
{
SGT_EditorGUI.BeginFrozen(selected);
{
thumb = SGT_EditorGUI.DrawHorizontalSliderThumb(colourRect, node.Position);
}
SGT_EditorGUI.EndFrozen();
if (selected == true)
{
var pickerRect = new Rect(0.0f, 0.0f, 40.0f, 20.0f);
pickerRect.center = new Vector2(thumb.x, thumb.yMax + 15.0f);
var oldColour = node.Colour;
node.SetColour(Target, SGT_EditorGUI.DrawColourPicker(pickerRect, node.Colour));
SGT_EditorGUI.MarkModified(SGT_Helper.Approximately(oldColour, node.Colour) == false, IsField);
}
}
}
// Handle clicking and dragging for the colour nodes
switch (Event.current.type)
{
case EventType.MouseDown:
if (colourRect.Contains(Event.current.mousePosition) == true)
{
selectedColourNode = Target.FindClosestColourNode(mousePosition);
if (selectedColourNode != null)
{
var distance = Mathf.Abs(selectedColourNode.Position - mousePosition);
var distancePx = distance * colourRect.width;
if (distancePx > 20.0f)
{
selectedColourNode = Target.AddColourNode(Color.white, mousePosition);
SGT_EditorGUI.MarkModified(true, IsField);
}
}
else
{
selectedColourNode = Target.AddColourNode(Color.white, mousePosition);
SGT_EditorGUI.MarkModified(true, IsField);
}
if (selectedColourNode.Locked == true)
{
draggingColourNode = false;
}
else
{
draggingColourNode = true;
}
Repaint();
}
break;
case EventType.MouseUp:
if (selectedColourNode != null && draggingColourNode == true && removeColourNode == true)
{
Target.RemoveColourNode(selectedColourNode);
SGT_EditorGUI.MarkModified(true, IsField);
}
draggingColourNode = false;
removeColourNode = false;
Repaint();
break;
case EventType.MouseDrag:
if (selectedColourNode != null && draggingColourNode == true)
{
var oldPosition = selectedColourNode.Position;
selectedColourNode.SetPosition(Target, mousePosition);
SGT_EditorGUI.MarkModified(Mathf.Approximately(oldPosition, selectedColourNode.Position) == false, IsField);
// Dragged out?
removeColourNode = colourRect2.Contains(Event.current.mousePosition) == false;
Repaint();
}
break;
}
}
}