lazarus-ccr/components/mbColorLib/SelPropUtils.pas
2016-12-08 23:14:26 +00:00

81 lines
1.8 KiB
ObjectPascal

unit SelPropUtils;
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
interface
uses
{$IFDEF FPC}
LCLIntf, LCLType,
{$ELSE}
Windows,
{$ENDIF}
Classes, Graphics;
procedure DrawSelCross(x, y: integer; Canvas: TCanvas; Color: TColor);
procedure DrawSelCrossCirc(x, y: integer; Canvas: TCanvas; Color: TColor);
procedure DrawSelCirc(x, y: integer; Canvas: TCanvas);
procedure DrawSelSquare(x, y: integer; Canvas: TCanvas);
implementation
procedure DrawSelCross(x, y: integer; Canvas: TCanvas; Color: TColor);
const
w = 5;
h = 3;
o = 8;
var
R: TRect;
begin
R := Rect(x-10, y-10, x+9, y+9);
Canvas.Brush.Color := Color;
Canvas.FillRect(Rect(R.Left, R.Top + o, R.Left + w, R.Top + o + h));
Canvas.FillRect(Rect(R.Left + o, R.Top, R.Left + o + h, R.Top + w));
Canvas.FillRect(Rect(R.Right - w, R.Top + o, R.Right, R.Top + o + h));
Canvas.FillRect(Rect(R.Left + o, R.Bottom - w, R.Left + o + h, R.Bottom));
end;
procedure DrawSelCrossCirc(x, y: integer; Canvas: TCanvas; Color: TColor);
var
R: TRect;
begin
R := Rect(x - 6, y - 6, x + 6, y + 6);
ExcludeClipRect(Canvas.Handle, x - 6, y - 1, x + 6, y + 1);
ExcludeClipRect(Canvas.Handle, x - 1, y - 6, x + 1, y + 6);
Canvas.Pen.Color := Color;
Canvas.Brush.Style := bsClear;
InflateRect(R, -1, -1);
Canvas.Ellipse(R);
InflateRect(R, -1, -1);
Canvas.Ellipse(R);
Canvas.Brush.Style := bsSolid;
end;
procedure DrawSelCirc(x, y: integer; Canvas: TCanvas);
var
R: TRect;
begin
R := Rect(x - 5, y - 5, x + 5, y + 5);
Canvas.Brush.Style := bsClear;
Canvas.Pen.Mode := pmNot;
Canvas.Ellipse(R);
Canvas.Pen.Mode := pmCopy;
Canvas.Brush.Style := bsSolid;
end;
procedure DrawSelSquare(x, y: integer; Canvas: TCanvas);
var
R: TRect;
begin
R := Rect(x - 5, y - 5, x + 5, y + 5);
Canvas.Brush.Style := bsClear;
Canvas.Pen.Mode := pmNot;
Canvas.Rectangle(R);
Canvas.Pen.Mode := pmCopy;
Canvas.Brush.Style := bsSolid;
end;
end.