public static Rect DrawRectangle(PIATexture tex, Vector2 startingPoint, Vector2 finalPoint, Color color)
{
// 0,0 on upper left corner
Rect rectangle;
TransformToLeftTop(ref startingPoint, tex.Texture.height);
TransformToLeftTop(ref finalPoint, tex.Texture.height);
if (startingPoint.x > finalPoint.x)
{
SwapX(ref startingPoint, ref finalPoint);
}
if (startingPoint.y < finalPoint.y)
{
SwapY(ref startingPoint, ref finalPoint);
}
rectangle = new Rect(startingPoint.x, startingPoint.y, Mathf.Abs(finalPoint.x - startingPoint.x), Mathf.Abs(finalPoint.y - startingPoint.y));
// Upper segment
for (int x = (int)startingPoint.x; x <= finalPoint.x; x++)
{
tex.Paint(x, (int)startingPoint.y, color, true, false);
}
// Downer segment
for (int x = (int)startingPoint.x; x <= finalPoint.x; x++)
{
tex.Paint(x, (int)finalPoint.y, color, true, false);
}
// Left segment
for (int y = (int)startingPoint.y; y >= finalPoint.y; y--)
{
tex.Paint((int)startingPoint.x, y, color, true, false);
}
// Right segment
for (int y = (int)startingPoint.y; y >= finalPoint.y; y--)
{
tex.Paint((int)finalPoint.x, y, color, true, false);
}
tex.Texture.Apply();
return(rectangle);
}
public static void ClearRect(PIATexture tex, Rect rectangle)
{
for (int x = (int)rectangle.x; x <= rectangle.xMax; x++)
{
for (int y = (int)rectangle.y; y >= rectangle.y - rectangle.height; y--)
{
tex.Paint(x, y, ClearColor);
}
}
tex.Texture.Apply();
}
public static Rect DrawFilledRectangle(PIATexture tex, Vector2 startingPoint, Vector2 finalPoint, Color color)
{
Rect rectangle = DrawRectangle(tex, startingPoint, finalPoint, color);
for (int x = (int)rectangle.x + 1; x < rectangle.xMax; x++)
{
for (int y = (int)rectangle.y; y > rectangle.y - rectangle.height - 1; y--)
{
tex.Paint(x, y, color);
}
}
tex.Texture.Apply();
return(rectangle);
}
public void OnGUIExecute(Event e, Vector2 pixelCoordinate)
{
// mouse is outside the grid
if (pixelCoordinate.x < 0 || pixelCoordinate.y < 0)
{
return;
}
// this is used to preview where we are going to draw
PIATexture helper = PIAEditorWindow.Instance.SelectionTexture;
PIAFrame frame = PIASession.Instance.ImageData.CurrentFrame;
int width = PIASession.Instance.ImageData.Width;
int height = PIASession.Instance.ImageData.Height;
// tools state machine
switch (ToolType)
{
case PIAToolType.Paint:
if (e.type == EventType.MouseDown || e.type == EventType.MouseDrag)
{
if (e.button == 0)
{
frame.GetCurrentImage().Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, FirstColor);
Debug.Log(frame.GetCurrentImage().Texture.width + "," + frame.GetCurrentImage().Texture.height);
}
if (e.button == 1)
{
frame.GetCurrentImage().Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, SecondColor);
}
}
else
{
helper.Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, new Color(Color.black.r, Color.black.g, Color.black.b, 0.2f), false, true, false);
}
break;
case PIAToolType.Erase:
if (e.type == EventType.MouseDown || e.type == EventType.MouseDrag)
{
frame.GetCurrentImage().Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, ClearColor);
}
else
{
helper.Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, new Color(Color.white.r, Color.white.g, Color.white.b, 0.5f), false, true, false);
}
break;
case PIAToolType.Rectangle:
if (e.type == EventType.MouseDown)
{
downPoint = new Vector2((int)pixelCoordinate.x, (int)pixelCoordinate.y);
if (e.button == 0)
{
DrawRectangle(helper, downPoint, pixelCoordinate, new Color(FirstColor.r, FirstColor.g, FirstColor.b, 0.5f));
}
if (e.button == 1)
{
DrawRectangle(helper, downPoint, pixelCoordinate, new Color(SecondColor.r, SecondColor.g, SecondColor.b, 0.5f));
}
}
if (e.type == EventType.MouseDrag)
{
if (e.button == 0)
{
DrawRectangle(helper, downPoint, pixelCoordinate, new Color(FirstColor.r, FirstColor.g, FirstColor.b, 0.5f));
}
if (e.button == 1)
{
DrawRectangle(helper, downPoint, pixelCoordinate, new Color(SecondColor.r, SecondColor.g, SecondColor.b, 0.5f));
}
}
if (e.type == EventType.MouseUp)
{
upPoint = new Vector2((int)pixelCoordinate.x, (int)pixelCoordinate.y);
if (e.button == 0)
{
DrawRectangle(frame.GetCurrentImage(), downPoint, upPoint, FirstColor);
}
if (e.button == 1)
{
DrawRectangle(frame.GetCurrentImage(), downPoint, upPoint, SecondColor);
}
helper.ClearTexture(true);
}
break;
case PIAToolType.RectangleFilled:
if (e.type == EventType.MouseDown)
{
downPoint = new Vector2((int)pixelCoordinate.x, (int)pixelCoordinate.y);
if (e.button == 0)
{
DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(FirstColor.r, FirstColor.g, FirstColor.b, 0.5f));
}
if (e.button == 1)
{
DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(SecondColor.r, SecondColor.g, SecondColor.b, 0.5f));
}
}
if (e.type == EventType.MouseDrag)
{
if (e.button == 0)
{
DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(FirstColor.r, FirstColor.g, FirstColor.b, 0.5f));
}
if (e.button == 1)
{
DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(SecondColor.r, SecondColor.g, SecondColor.b, 0.5f));
}
}
if (e.type == EventType.MouseUp)
{
upPoint = new Vector2((int)pixelCoordinate.x, (int)pixelCoordinate.y);
if (e.button == 0)
{
DrawFilledRectangle(frame.GetCurrentImage(), downPoint, upPoint, FirstColor);
}
if (e.button == 1)
{
DrawFilledRectangle(frame.GetCurrentImage(), downPoint, upPoint, SecondColor);
}
helper.ClearTexture(true);
}
break;
case PIAToolType.Selection:
if (e.type == EventType.MouseDown)
{
downPoint = new Vector2((int)pixelCoordinate.x, (int)pixelCoordinate.y);
DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(Color.cyan.r, Color.cyan.g, Color.cyan.b, 0.5f));
}
if (e.type == EventType.MouseDrag)
{
selectedRect = DrawFilledRectangle(helper, downPoint, pixelCoordinate, new Color(Color.cyan.r, Color.cyan.g, Color.cyan.b, 0.5f));
}
if (e.keyCode == KeyCode.Delete)
{
ClearRect(frame.GetCurrentImage(), selectedRect);
helper.ClearTexture(true);
}
break;
case PIAToolType.Dithering:
if ((pixelCoordinate.x + pixelCoordinate.y) % 2 == 1)
{
helper.Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, new Color(Color.red.r, Color.red.g, Color.red.b, 0.2f), false, true, false);
return;
}
if (e.type == EventType.MouseDown || e.type == EventType.MouseDrag)
{
if (e.button == 0)
{
frame.GetCurrentImage().Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, FirstColor);
}
if (e.button == 1)
{
frame.GetCurrentImage().Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, SecondColor);
}
}
else
{
helper.Paint((int)pixelCoordinate.x, height - (int)pixelCoordinate.y - 1, new Color(Color.black.r, Color.black.g, Color.black.b, 0.2f), false, true, false);
}
break;
}
}