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drawingobject1.pas
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drawingobject1.pas
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unit DrawingObject1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils,
Persists1, DrawingCommon1, Graphics, Preferences1,
ExtCtrls, ThreePoint1, Forms, TextIO1, Generics1;
type
TDrawingObjects = class;
{ TDrawingObject }
TDrawingObject = class(TPersists)
private
fDrawingObjects : TDrawingObjects;
fOrigin : T3Point;
fRho, fTheta : Double;
fSelect : Boolean;
// fMoveStart : T3Point;
function GetX: Double;
function GetY: Double;
function GetZ: Double;
procedure SetOrigin(const AValue: T3Point);
procedure SetRho(const AValue: Double);
procedure SetTheta(const AValue: Double);
procedure SetX(const AValue: Double);
procedure SetY(const AValue: Double);
procedure SetZ(const AValue: Double);
protected
procedure LoadCommon( var F : TextFile ); virtual; abstract;
public
constructor Create( aParent : TPersists = nil); override;
//constructor Create( var F : TextFile;
// aParent : TPersistentZ = nil ); virtual; //abstract;
destructor Destroy; override;
procedure MakeNew; override;
procedure Save( TextIO : TTextIO ); override;
procedure Load( TextIO : TTextIO ); override;
procedure Assign( Source : TPersists ); override;
function PixelsX( Value : T3Point;
Box : TDrawingBox;
Preferences : TPreferences;
PaintBox : TPaintBox) : Integer;
function PixelsY( Value : T3Point;
Box : TDrawingBox;
Preferences : TPreferences;
PaintBox : TPaintBox) : Integer;
function MicronsX( Value : T3Point;
Box : TDrawingBox ) : Double;
function MicronsY( Value : T3Point;
Box : TDrawingBox ) : Double;
procedure Draw( Frame : TFrame;
Preferences : TPreferences;
ActiveLayer : Boolean ); virtual; abstract;
// function Drawing : TObject;
procedure DrawHandle( Frame : TFrame;
X, Y : Integer; // Pixel coordinates on Canvas
Ref : Integer );
procedure Move( Position : T3Point );
procedure MoveHandle( Position : T3Point; Handle : Integer );
procedure ToggleSelect;
procedure Select;
procedure Deselect;
property X : Double read GetX write SetX;
property Y : Double read GetY write SetY;
property Z : Double read GetZ write SetZ;
property Origin : T3Point read fOrigin write SetOrigin;
property Rho : Double read fRho write SetRho; // rotation in Z
property Theta : Double read fTheta write SetTheta; // rotation in XY
property Selected : Boolean read fSelect;
end;
{ TDrawingObjects }
TDrawingObjectList = specialize TMagicList<TDrawingObject>;
TDrawingObjects = class(TDrawingObjectList)
public
procedure MakeNew; override;
//procedure Save( TextIO : TTextIO ); override;
//procedure Load( TextIO : TTextIO ); override;
//procedure Assign( Source : TDrawingObjects ); override;
procedure Draw( PaintBox : TPaintBox;
Box : TDrawingBox ); virtual; abstract;
procedure DeselectAll;
end;
{ TDrawingObjectRaster }
TDrawingObjectReference = record
Obj : TDrawingObject;
Ref : Integer;
end;
TDrawingObjectRaster = class
private
vRaster : array of TDrawingObjectReference;
fHeight : Integer;
fWidth : Integer;
function CoordinatesAreValid( var X, Y : Integer ) : Boolean;
public
constructor Create;
destructor Destroy;
procedure Resize( aWidth, aHeight : Integer );
procedure Reset;
function DrawingObject( X, Y : Integer) : TDrawingObjectReference;
procedure DrawingObject( X, Y : Integer; Obj : TDrawingObject; Reference : Integer);
property Height : Integer read fHeight;
property Width : Integer read fWidth;
end;
implementation
uses
{Main1, Internals1, Drawing1, UnitConversion1, RectangularSolid1, Sphere1,
StraightLine1,} CanvasStack1{, DrawingFrame1};
const
CurrentVersion = 1;
CurrentListVersion = 1;
{ TDrawingObjectRaster }
const
RasterDiv = 5;
function TDrawingObjectRaster.CoordinatesAreValid(var X, Y: Integer): Boolean;
begin
Result := False;
Dec(X);
Dec(Y);
if (X < 0) or (Y < 0) then exit;
if (X >= fWidth) or (Y >= fHeight) then exit;
Result := True;
end;
constructor TDrawingObjectRaster.Create;
begin
SetLength(vRaster,0);
fHeight := 0;
fWidth := 0;
end;
destructor TDrawingObjectRaster.Destroy;
begin
SetLength(vRaster,0);
end;
function TDrawingObjectRaster.DrawingObject(X, Y: Integer): TDrawingObjectReference;
var
Index : Integer;
Q : Integer;
begin
X := X div RasterDiv; Y := Y div RasterDiv;
if CoordinatesAreValid( X, Y ) then
begin
Index := Y * fWidth + X;
Result := vRaster[Index]
end
else
begin
Result.Obj := nil;
Result.Ref := 0;
end;
end;
procedure TDrawingObjectRaster.DrawingObject(X, Y: Integer; Obj: TDrawingObject;
Reference : Integer );
var
Index : Integer;
begin
X := X div RasterDiv; Y := Y div RasterDiv;
if CoordinatesAreValid( X, Y ) then
begin
Index := Y * fWidth + X;
vRaster[Index].Obj := Obj;
vRaster[Index].Ref := Reference;
end;
end;
procedure TDrawingObjectRaster.Reset;
begin
SetLength(vRaster,0);
SetLength(vRaster, fWidth * fHeight );
end;
procedure TDrawingObjectRaster.Resize(aWidth, aHeight: Integer);
begin
fWidth := aWidth div RasterDiv;
fHeight := aHeight div RasterDiv;
Reset;
end;
{ TDrawingObjects }
//procedure TDrawingObjects.Assign(Source: TPersists);
//begin
// inherited Assign(Source);
//end;
procedure TDrawingObjects.DeselectAll;
var
I : Integer;
begin
for I := 0 to pred(Count) do
TDrawingObject(Items[I]).Deselect;
end;
//procedure TDrawingObjects.Load( TextIO : TTextIO );
//var
// V : Integer;
// S : String;
// C : Integer;
// I : Integer;
// O : TDrawingObject;
//begin
// ClsName := self.ClassName; // Get the expected class name
// TextIO.ReadLn(S); // Read the start of class
// CheckStartClass(S,ClsName); // Assert they are correct and of correct format
// TextIO.Readln(V);
//// Read based on version;
// if V >= 1 then
// begin
// Readln(F,C);
// for I := 0 to pred(C) do
// begin
// Readln(F,S);
// if S = '<Rectangular Solid>' then
// O := TRectangularSolid.Create(F,self)
// else if S = '<Sphere>' then
// O := TSphere.Create(F,Self)
// else if S = '<Straight Line>' then
// O := TStraightLine.Create(F,self)
// else
// raise Exception.Create('Drawing Object List Error or unknown Drawing Object: ' + S);
// Add(O);
// end;
// end;
// Readln(F, S);
// if S <> '</DrawingObjects>' then
// raise Exception.Create('End of Drawing Object List');
// inherited Load(F);
//end;
procedure TDrawingObjects.MakeNew;
begin
inherited MakeNew;
end;
//procedure TDrawingObjects.Save( TextIO : TTextIO );
//var
// I : Integer;
//begin
// inherited Save(F);
// Writeln(F,'<DrawingObjects>');
// Writeln(F,CurrentListVersion);
// Writeln(F,Count);
// for I := 0 to pred(Count) do
// TDrawingObject(Items[I]).Save(F);
// Writeln(F,'</DrawingObjects>');
//end;
{ TDrawingObject }
procedure TDrawingObject.Assign(Source: TPersists);
var
S : TDrawingObject;
begin
inherited Assign(Source);
S := TDrawingObject(Source);
fDrawingObjects.Assign(S.fDrawingObjects);
fOrigin.Assign(S.fOrigin);
fRho := S.fRho;
fTheta := S.fTheta;
fSelect := S.fSelect;
end;
//constructor TDrawingObject.Create(var F: TextFile; aParent: TPersists);
//begin
// Origin := T3Point.Create( self );
//// fMoveStart := T3Point.Create;
//end;
constructor TDrawingObject.Create(aParent: TPersists);
begin
inherited Create(aParent);
Origin := T3Point.Create;
// fMoveStart := T3Point.Create;
end;
destructor TDrawingObject.Destroy;
begin
Origin.Free;
fDrawingObjects.Free;
// fMoveStart.Free;
inherited Destroy;
end;
procedure TDrawingObject.DrawHandle(Frame: TFrame; X, Y: Integer; Ref : Integer);
//var
// DF : TDrawingFrame;
// X0, Y0, X1, Y1 : Integer;
// Size : Integer;
begin
//DF := Frame as TDrawingFrame;
//if Ref = 1 then
// begin
// Size := 5;
// end
//else
// begin
// Size := 4;
// end;
//X0 := X - Size;
//X1 := X + Size;
//Y0 := Y - Size;
//Y1 := Y + Size;
//DF.DrawingObject(X0, Y0, Self,Ref);
//DF.DrawingObject(X0, Y1, Self,Ref);
//DF.DrawingObject(X1, Y0, Self,Ref);
//DF.DrawingObject(X1, Y1, Self,Ref);
//DF.DrawingObject( X, Y, Self, Ref );
//CanvasStack.Push( DF.PaintBox1.Canvas );
//DF.PaintBox1.Canvas.Pen.Width := 1;
//DF.PaintBox1.Canvas.Pen.Style := psSolid;
//DF.PaintBox1.Canvas.Pen.Color := clBlack;
//DF.PaintBox1.Canvas.Brush.Color := $cccc00;
//DF.PaintBox1.Canvas.Rectangle( X0, Y0, X1, Y1 );
//X0 := X - Size + 3;
//Y0 := Y + Size - 2;
//X1 := X + Size - 2;
//Y1 := Y - Size + 3;
//
//DF.PaintBox1.Canvas.Pen.Width := 1;
//DF.PaintBox1.Canvas.Pen.Color := clBlack;
//DF.PaintBox1.Canvas.MoveTo( X0,Y0);
//DF.PaintBox1.Canvas.LineTo( X1,Y0);
//DF.PaintBox1.Canvas.LineTo( X1, Y1);
//CanvasStack.Pop( DF.PaintBox1.Canvas );
end;
//function TDrawingObject.Drawing: TObject;
//begin
// Result := MainForm.ActiveDrawing;
//end;
procedure TDrawingObject.ToggleSelect;
begin
fSelect := not fSelect;
end;
procedure TDrawingObject.Select;
begin
fSelect := true;
end;
procedure TDrawingObject.Deselect;
begin
fSelect := False;
end;
function TDrawingObject.GetX: Double;
begin
Result := fOrigin.fX;
end;
function TDrawingObject.GetY: Double;
begin
Result := fOrigin.fY;
end;
function TDrawingObject.GetZ: Double;
begin
Result := fOrigin.fZ;
end;
procedure TDrawingObject.Load( TextIO : TTextIO );
var
V : Integer;
ClsName : String;
S : String;
begin
ClsName := self.ClassName; // Get the expected class name
TextIO.ReadLn(S); // Read the start of class
CheckStartClass(S,ClsName); // Assert they are correct and of correct format
TextIO.Readln(V);
if V >= 1 then
fOrigin.Load(TextIO);
TextIO.Readln(fRho);
TextIO.Readln(fTheta);
// inherited Load(F);
TextIO.Readln(S); // Read the end of class
CheckEndClass(S,ClsName); // Assert end of class is correct and of correct format
fModified := false; // make sure this was NOT modified by the load.
end;
procedure TDrawingObject.MakeNew;
begin
inherited MakeNew;
fDrawingObjects := TDrawingObjects.Create( Self );
fOrigin.X := 0.0;
fOrigin.Y := 0.0;
fOrigin.Z := 0.0;
fRho := 0;
fTheta := 0;
end;
function TDrawingObject.MicronsX(Value: T3Point; Box: TDrawingBox): Double;
begin
case Box of
XY, XZ : Result := Value.X;
YZ : Result := Value.Y;
end;
end;
function TDrawingObject.MicronsY(Value: T3Point; Box: TDrawingBox): Double;
begin
case Box of
XY : Result := Value.Y;
XZ, YZ : Result := Value.Z;
end;
end;
procedure TDrawingObject.Move(Position: T3Point);
begin
Origin.Add( Position );
end;
procedure TDrawingObject.MoveHandle(Position: T3Point; Handle: Integer);
begin
;
end;
function TDrawingObject.PixelsX(Value: T3Point; Box: TDrawingBox;
Preferences: TPreferences; PaintBox : TPaintBox): Integer;
var
D : TDrawing;
V : Double;
begin
case Box of
XY, XZ : V := Value.X;
YZ : V := Value.Y;
end;
D := TDrawing(Drawing);
{ DONE 1 -oDon Ziesig -cPrimary Code Functionality : Get reference to Drawing at this location. }
Result := MicronsToPixels( V - D.MinX[Box], D.Preferences );
end;
function TDrawingObject.PixelsY(Value: T3Point; Box: TDrawingBox;
Preferences: TPreferences; PaintBox : TPaintBox): Integer;
var
D : TDrawing;
H : Integer;
Y0 : Integer;
V : Double;
begin
case Box of
XY : V := Value.Y;
XZ, YZ : V := Value.Z;
end;
D := TDrawing(Drawing);
{ DONE 1 -oDon Ziesig -cPrimary Code Functionality : Get reference to Drawing at this location. }
H := PaintBox.Height;
Y0 := MicronsToPixels( V - D.MinY[Box], D.Preferences );
Result := H - Y0;
//InternalsForm1.PutEvent('Value',Value*MicronsToFt);
//InternalsForm1.PutEvent('Canvas.Height',H);
//InternalsForm1.PutEvent('Y0',Y0);
//InternalsForm1.PutEvent('Result',Result);
//InternalsForm1.PutEvent('========','=====================================');
end;
procedure TDrawingObject.Save( TextIO : TTextIO );
var
S : String;
begin
S := self.ClassName; // Get our class name
TextIO.Writeln('<'+S+'>'); // Write the start of class
TextIO.Writeln(CurrentVersion);
fOrigin.Save(TextIO);
TextIO.Writeln(fRho);
TextIO.Writeln(fTheta);
TextIO.Writeln('</'+S+'>'); // Write the end of class
fModified := false; // if it were modified, it isn't any more.
end;
procedure TDrawingObject.SetOrigin(const AValue: T3Point);
begin
if fOrigin=AValue then exit;
fOrigin:=AValue;
end;
procedure TDrawingObject.SetRho(const AValue: Double);
begin
Update( fRho, AValue );
end;
procedure TDrawingObject.SetTheta(const AValue: Double);
begin
Update( fTheta, AValue );
end;
procedure TDrawingObject.SetX(const AValue: Double);
begin
Origin.X := AValue;
// Update( fX, AValue );
end;
procedure TDrawingObject.SetY(const AValue: Double);
begin
Origin.Y := AValue;
// Update( fY, AValue );
end;
procedure TDrawingObject.SetZ(const AValue: Double);
begin
Origin.Z := AValue;
// Update( fZ, AValue );
end;
end.