//============================================================
// <T>开始绘制处理。</T>
//
// @param args 参数
//============================================================
public void Draw(SUiDrawArgs args)
{
FDxContext2d context = _context.Context;
context.TransformIdentity();
// 计算坐标
_location.Assign(_control.CalculateDisplayPosition());
_size.Assign(_control.CalculateDisplaySize());
// 绘制选择区域
if (_designSelect)
{
// 绘制底版
context.FillRectangle(_selectBackColor.brush, _location.X, _location.Y, _size.Width, _size.Height);
// 绘制边线
context.DrawRectangle(_selectForeColor.brush, _location.X, _location.Y, _size.Width, _size.Height);
}
// 绘制辅助点区域
if (_designFocus)
{
CalculatePoints();
foreach (SUiControlPoint point in _points)
{
DrawPoint(point);
}
}
}
//============================================================
// <T>绘制辅助线。</T>
//============================================================
public bool DrawAidLines()
{
// 检查状态
FUiControl focusControl = _selection.FocusControl;
if (focusControl == null)
{
return(false);
}
FUiControl parent = focusControl.Parent as FUiControl;
if (parent == null)
{
return(false);
}
// 获得环境
float scale = _context.Scale;
FDxContext2d context = _context.Context;
context.TransformIdentity();
// 绘制对齐线
SIntPoint2 location = focusControl.CalculateDisplayPosition();
SIntSize2 size = focusControl.CalculateDisplaySize();
foreach (FUiComponent component in parent.Components)
{
FUiControl control = component as FUiControl;
// 检查变量
if (control == null)
{
continue;
}
if (control == focusControl)
{
continue;
}
// 计算坐标
SIntPoint2 findLocation = control.CalculateDisplayPosition();
SIntSize2 findSize = control.CalculateDisplaySize();
// 左辅助线
if (location.X == findLocation.X)
{
context.DrawLineLayer(location.X, 0, location.X, _size.Height, _lineBackBrush, _lineForeBrush, _lineWidth, _lineForeStrokeStyle);
}
// 上辅助线
if (location.Y == findLocation.Y)
{
context.DrawLineLayer(0, location.Y, _size.Width, location.Y, _lineBackBrush, _lineForeBrush, _lineWidth, _lineForeStrokeStyle);
}
// 右辅助线
int right = findLocation.X + findSize.Width;
if (location.X + size.Width == right)
{
context.DrawLineLayer(right, 0, right, _size.Height, _lineBackBrush, _lineForeBrush, _lineWidth, _lineForeStrokeStyle);
}
// 下辅助线
int bottom = findLocation.Y + findSize.Height;
if (location.Y + size.Height == bottom)
{
context.DrawLineLayer(0, bottom, _size.Width, bottom, _lineBackBrush, _lineForeBrush, _lineWidth, _lineForeStrokeStyle);
}
}
return(true);
}
