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| ///////////////////////////////////////////////////////////////////////////
// //
// Copyright (c) 2015 by Charta Software B.V. //
// All rights reserved //
// //
// Version: 1.7.0.83525 //
// Web site: https://pascal.chartasoftware.com/ //
// //
// This code and information are provided "as is" without warranty of //
// any kind. Dissemination of this information or reproduction of //
// this material is strictly forbidden unless prior written permission //
// is obtained from Charta Software B.V.. //
// //
///////////////////////////////////////////////////////////////////////////
unit Drawing.Canvas;
interface
uses
Color.Rgb,
Drawing.Canvas.ClippingWindow,
Drawing.Fill,
Drawing.Resource,
Drawing.Stroke,
FloatingPoint._64,
FloatingPoint._64.Interval,
Font,
Geometry._2d,
Geometry._2d.Dimension,
Geometry._2d.FloatingPoint64.Ellipse,
Geometry._2d.FloatingPoint64.Point,
Geometry._2d.FloatingPoint64.Rectangle,
Geometry._2d.FloatingPoint64.Rectangle.Rounded,
Geometry._2d.Integer32.Point,
Geometry._2d.Integer32.Rectangle,
Geometry._2d.Integer32.Size,
Geometry._2d.Transformation.Affine.Compound,
Image.Raster,
Integer._32,
Integer._32.Interval,
Text;
type
TCanvasLayer = class(TObject)
private
FBounds: T2dFloatingPoint64Rectangle;
public
constructor Create(const Bounds: T2dFloatingPoint64Rectangle); virtual;
property Bounds: T2dFloatingPoint64Rectangle read FBounds;
end;
TCanvas = class(TObject)
protected
FFont: TSizedFont;
FStroke: TStroke;
FFill: TFill;
procedure SetFont(const Value: TSizedFont);
procedure SetStroke(const Value: TStroke);
procedure SetFill(const Value: TFill);
function GetTransformation(): T2dCompoundAffineTransformation; virtual; abstract;
function GetClippingWindow(): TClippingWindow; virtual; abstract;
procedure FontChanged(); virtual;
procedure StrokeChanged(); virtual;
procedure FillChanged(); virtual;
public
destructor Destroy(); override;
procedure FillRectangle(const Rectangle: TInteger32Rectangle); overload; virtual; abstract;
procedure FillRectangle(const Rectangle: T2dFloatingPoint64Rectangle); overload; virtual; abstract;
procedure DrawRectangle(const Rectangle: TInteger32Rectangle); overload; virtual; abstract;
procedure DrawRectangle(const Rectangle: T2dFloatingPoint64Rectangle); overload; virtual; abstract;
procedure DrawRoundedRectangle(const Rectangle: T2dFloatingPoint64RoundedRectangle); virtual; abstract;
procedure FillRoundedRectangle(const Rectangle: T2dFloatingPoint64RoundedRectangle); virtual; abstract;
procedure DrawImage(const Position: T2dFloatingPoint64Point; Image: TRasterImage); virtual; abstract;
procedure StrokeGeometry(Geometry: T2dGeometry); virtual; abstract;
procedure FillGeometry(Geometry: T2dGeometry); virtual; abstract;
procedure DrawLine(const Point1: TInteger32Point; const Point2: TInteger32Point); overload; virtual; abstract;
procedure DrawLine(const Point1: T2dFloatingPoint64Point; const Point2: T2dFloatingPoint64Point); overload; virtual; abstract;
procedure HorizontalLine(const HorizontalRange: TInteger32Interval; Y: TInteger32); overload; virtual;
procedure VerticalLine(X: TInteger32; const VerticalRange: TInteger32Interval); overload; virtual;
procedure HorizontalLine(const HorizontalRange: TFloatingPoint64Interval; Y: TFloatingPoint64); overload; virtual;
procedure VerticalLine(X: TFloatingPoint64; const VerticalRange: TFloatingPoint64Interval); overload; virtual;
procedure FillEllipse(const Ellipse: T2dFloatingPoint64Ellipse); virtual; abstract;
procedure TextOut(const TopLeft: T2dFloatingPoint64Point; const Text: TText); virtual; deprecated 'Please use FillText';
procedure FillText(const BaseLineLeft: T2dFloatingPoint64Point; const Text: TText); virtual; abstract;
procedure FillTextLayout(const TopLeft: T2dFloatingPoint64Point; Layout: TTextLayout); virtual; abstract;
procedure OverlayRectangle(const Rectangle: TInteger32Rectangle; Factor: TFloatingPoint64); virtual; abstract;
procedure OverlayGradient(const Rectangle: TInteger32Rectangle; const Color: TRgbColor; const Factors: TFloatingPoint64Interval; Dimension: T2dDimension); virtual; abstract;
function PushLayer(const Bounds: T2dFloatingPoint64Rectangle; Opacity: TFloatingPoint64): TCanvas; virtual; abstract;
procedure PopLayer(); virtual; abstract;
function Create3dCanvas(const Size: TInteger32Size; RotationX: TFloatingPoint64; RotationY: TFloatingPoint64): TCanvas; virtual; abstract;
procedure Destroy3dCanvas(Canvas: TCanvas); virtual; abstract;
property Transformation: T2dCompoundAffineTransformation read GetTransformation;
property ClippingWindow: TClippingWindow read GetClippingWindow;
property Font: TSizedFont read FFont write SetFont;
property Stroke: TStroke read FStroke write SetStroke;
property Fill: TFill read FFill write SetFill;
end;
implementation
uses
Exception.NotImplemented;
{ TCanvas }
destructor TCanvas.Destroy();
begin
Stroke.ReleaseReference();
Fill.ReleaseReference();
inherited Destroy();
end;
procedure TCanvas.FillChanged();
begin
end;
procedure TCanvas.FontChanged();
begin
end;
procedure TCanvas.HorizontalLine(const HorizontalRange: TFloatingPoint64Interval; Y: TFloatingPoint64);
begin
DrawLine(T2dFloatingPoint64Point.New(HorizontalRange.Low, Y), T2dFloatingPoint64Point.New(HorizontalRange.High + 1, Y));
end;
procedure TCanvas.HorizontalLine(const HorizontalRange: TInteger32Interval; Y: TInteger32);
begin
DrawLine(TInteger32Point.New(HorizontalRange.Low, Y), TInteger32Point.New(HorizontalRange.High + 1, Y));
end;
procedure TCanvas.SetFill(const Value: TFill);
begin
if Value <> Fill then
begin
Value.AddReference();
Fill.ReleaseReference();
FFill := Value;
FillChanged();
end;
end;
procedure TCanvas.SetFont(const Value: TSizedFont);
begin
if Value <> Font then
begin
FFont := Value;
FontChanged();
end;
end;
procedure TCanvas.SetStroke(const Value: TStroke);
begin
if Value <> Stroke then
begin
Value.AddReference();
Stroke.ReleaseReference();
FStroke := Value;
StrokeChanged();
end;
end;
procedure TCanvas.StrokeChanged();
begin
end;
procedure TCanvas.TextOut(const TopLeft: T2dFloatingPoint64Point; const Text: TText);
begin
raise ENotImplemented.Create(ClassType, 'TextOut');
end;
procedure TCanvas.VerticalLine(X: TFloatingPoint64; const VerticalRange: TFloatingPoint64Interval);
begin
DrawLine(T2dFloatingPoint64Point.New(X, VerticalRange.Low), T2dFloatingPoint64Point.New(X, VerticalRange.High + 1));
end;
procedure TCanvas.VerticalLine(X: TInteger32; const VerticalRange: TInteger32Interval);
begin
DrawLine(TInteger32Point.New(X, VerticalRange.Low), TInteger32Point.New(X, VerticalRange.High + 1));
end;
{ TCanvasLayer }
constructor TCanvasLayer.Create(const Bounds: T2dFloatingPoint64Rectangle);
begin
inherited Create();
FBounds := Bounds;
end;
end.
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