// 按下滑鼠
public void PressPointer(double x, double y)
{
_model.IsPressed = true;
_resizing = WantToResize(x, y);
_index = _model.GetSelectedShapeIndex();
if (_resizing)
{
_model.RemoveSelectedShapeFromTotalShapes();
_originalShape = _shapeFactory.CreateShape(_model.SelectedShape);
}
}
// 處理按下指標事件
public override void PressPointer(ShapeType shapeType, double left, double top)
{
if (left > 0 && top > 0)
{
_type = shapeType;
_startPoint.Left = left;
_startPoint.Top = top;
_hint = _shapeFactory.CreateShape(_type);
SetShapePoints(_hint, _startPoint, _startPoint);
_isPressed = true;
}
}
// 畫預覽圖
public void DrawHint(double x1, double y1, double x2, double y2)
{
if (CurrentMode == -1)
{
_shapeHint = _shapeFactory.CreateShape(SelectedShape);
SelectedShape = _shapeHint;
}
else
{
_shapeHint = _shapeFactory.CreateShape(CurrentMode);
}
_shapeHint.X1 = x1;
_shapeHint.Y1 = y1;
_shapeHint.X2 = x2;
_shapeHint.Y2 = y2;
}
//when pointer is released
public void ReleasePointer(double x, double y)
{
const int FOUR = 4;
_isPressed = false;
double[] points = new double[FOUR] {
_topLeftPointX, _topLeftPointY, x, y
};
_shapeFactory.CreateShape(_paintMode, points, _commandManager, this);
_hintShapes[_paintMode].TopLeftPointX = ZERO;
_hintShapes[_paintMode].TopLeftPointY = ZERO;
_hintShapes[_paintMode].BottomRightPointX = ZERO;
_hintShapes[_paintMode].BottomRightPointY = ZERO;
NotifyModelChanged();
}
public DrawState(Model model, Model.ShapeType type)
{
_model = model;
_hint = _shapeFactory.CreateShape(type);
}