//============================================================
// <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>绘制处理点。</T>
//
// @param args 参数
//============================================================
public void DrawPoint(SUiControlPoint point)
{
int x = point.Point.X - 2;
int y = point.Point.Y - 2;
// 绘制边线
FDxContext2d context = _context.Context;
context.FillRectangle(_pointBackBrush, x, y, _pointForeSize.Width, _pointForeSize.Height);
context.DrawRectangle(_pointForeBrush, x, y, _pointBackSize.Width, _pointBackSize.Height);
}
//============================================================
// <T>绘制处理。</T>
//
// @param sender 发送者
// @param e:event 事件
//============================================================
public void Paint()
{
// 检查设置
if (!_setuped)
{
return;
}
// 获得设备
FDxDevice2d device = _context.Device;
FDxContext2d context = _context.Context;
context.TransformIdentity();
// 开始绘制
device.BeginDraw();
// 清空目标
context.Clear();
// 填充背景
if (_designBack)
{
context.FillRectangle(_designBackBrush.brush, 0, 0, _size.Width, _size.Height);
}
else
{
context.FillRectangle(_backBrush, 0, 0, _size.Width, _size.Height);
}
// 绘制预览层
DrawPreviewLayers();
// 绘制表单
SUiDrawArgs args = new SUiDrawArgs();
args.Context = context;
if (_designFrame.DesignVisible)
{
// 绘制表单
context.TransformIdentity();
_designFrame.Draw(args);
// 绘制下拉部分
if (args.DropControl != null)
{
context.TransformIdentity();
args.DropControl.Draw(args);
}
}
// 绘制辅助器
if (_selection.HasFocusControl())
{
// 绘制辅助线
DrawAidLines();
// 绘制辅助器
_designFrame.DrawDesign(args);
}
// 结束绘制
device.EndDraw();
}
//============================================================
// <T>释放处理。</T>
//============================================================
public void Dispose()
{
if (_context != null)
{
if (_context.Device != null)
{
_context.Device.Dispose();
_context.Device = null;
}
_context = null;
}
}
//============================================================
// <T>开始绘制处理。</T>
//
// @param args 参数
//============================================================
public virtual void OnDrawBegin(SUiDrawArgs args)
{
FDxContext2d context = _context.Context;
FRcControl resource = ControlResource;
// 绘制设计背景
if (_designGround)
{
context.FillRectangle(_context.DesignGroundColor.brush, 0, 0, _designSize.Width, _designSize.Height);
}
// 绘制后景颜色
if (resource.BackColor != 0)
{
context.FillRectangle(resource.BackColor, 0, 0, _designSize.Width, _designSize.Height);
}
// 绘制后景
DrawResource(_backResource);
}
//============================================================
// <T>结束绘制处理。</T>
//
// @param args 参数
//============================================================
public virtual void OnDrawAfter(SUiDrawArgs args)
{
FDxContext2d context = _context.Context;
// 绘制前景
DrawResource(_foreResource);
// 绘制边框
DrawBorder(ControlResource.BorderInner, ControlResource.BorderOuter);
//if (_optionBorder) {
// SetupColor(_borderColor);
// if (_borderColor.Valid) {
// context.DrawRectangle(_borderColor.brush, 0, 0, _designSize.Width, _designSize.Height);
// }
//}
// 绘制设计边框
if (_designBorder)
{
context.DrawRectangle(_context.DesignBorderBackColor.brush, 0, 0, _designSize.Width, _designSize.Height, 2);
context.DrawRectangle(_context.DesignBorderForeColor.brush, 0, 0, _designSize.Width, _designSize.Height);
}
}
//============================================================
// <T>绘制资源。</T>
//
// @param resource 资源
// @param rectangle 范围
//============================================================
public void DrawResource(FUiPicture resource, SIntRectangle rectangle)
{
if (resource.HasBitmap())
{
// 获得坐标
float scale = _context.Scale;
int x = resource.Location.X;
int y = resource.Location.Y;
// 绘制资源
FDxContext2d context = _context.Context;
if (resource.AlignCd == ERcPictureAlign.Square)
{
context.DrawBitmapPadding(resource.bitmap, rectangle, x, y, ControlResource.Size.Width, ControlResource.Size.Height, resource.Padding, scale);
}
else
{
SIntSize2 size = resource.bitmap.Size;
context.DrawBitmap(resource.bitmap, rectangle, x, y, size.Width, size.Height, scale);
}
}
}
//============================================================
// <T>绘制处理。</T>
//
// @param sender 发送者
// @param e:event 事件
//============================================================
public void DrawPreviewLayers()
{
if (!_designLayers)
{
return;
}
FUiControlLayers layers = _designFrame.PreviewLayers;
if (!layers.IsEmpty())
{
float scale = _context.Scale;
FDxContext2d context = _context.Context;
SIntPoint2 position = _designFrame.CalculateDisplayPosition();
int count = layers.Count;
for (int n = count - 1; n >= 0; n--)
{
FUiControlLayer layer = layers[n];
if (layer.OptionVisible)
{
context.DrawBitmap(layer.Bitmap, position.X, position.Y, (int)(layer.Size.Width * scale), (int)(layer.Size.Height * scale), 1.0f);
}
}
}
}
//============================================================
// <T>构造绘图板。</T>
//
// @param context 环境
//============================================================
public FUiGraphics(FDxContext2d context = null)
{
_context = context;
}
//============================================================
// <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);
}
