TPadPainterPS.h

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// @(#)root/gpad:$Id$
// Author:  Sergey Linev  04/03/2026
 
/*************************************************************************
 * Copyright (C) 1995-2026, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOT_TPadPainterPS
#define ROOT_TPadPainterPS
 
#include "TVirtualPadPainter.h"
 
/*
TPadPainterPS is an attempt to abstract
pad painting operation to the TVirtualPS interface.
So using same API as for normal object drawing on interactive canvas,
one also will be able to produce vector-based and binary images  */
 
class TVirtualPad;
class TVirtualPS;
 
class TPadPainterPS : public TVirtualPadPainter {
private:
   TVirtualPS    *fPS = nullptr;
   TVirtualPad   *fPad = nullptr;
public:
   TPadPainterPS(TVirtualPS *ps);
 
   //Final overriders for TVirtualPadPainter pure virtual functions.
   //1. Part, which simply delegates to TVirtualX.
 
   //Line attributes.
   Color_t  GetLineColor() const override;
   Style_t  GetLineStyle() const override;
   Width_t  GetLineWidth() const override;
 
   void     SetLineColor(Color_t lcolor) override;
   void     SetLineStyle(Style_t lstyle) override;
   void     SetLineWidth(Width_t lwidth) override;
 
   //Fill attributes.
   Color_t  GetFillColor() const override;
   Style_t  GetFillStyle() const override;
   Bool_t   IsTransparent() const override;
 
   void     SetFillColor(Color_t fcolor) override;
   void     SetFillStyle(Style_t fstyle) override;
   void     SetOpacity(Int_t percent) override;
 
   //Text attributes.
   Short_t  GetTextAlign() const override;
   Float_t  GetTextAngle() const override;
   Color_t  GetTextColor() const override;
   Font_t   GetTextFont()  const override;
   Float_t  GetTextSize()  const override;
   Float_t  GetTextMagnitude() const override;
 
   void     SetTextAlign(Short_t align) override;
   void     SetTextAngle(Float_t tangle) override;
   void     SetTextColor(Color_t tcolor) override;
   void     SetTextFont(Font_t tfont) override;
   void     SetTextSize(Float_t tsize) override;
   void     SetTextSizePixels(Int_t npixels) override;
 
   //Marker attributes
   Color_t  GetMarkerColor() const override;
   Style_t  GetMarkerStyle() const override;
   Size_t   GetMarkerSize() const override;
 
   void     SetMarkerColor(Color_t mcolor) override;
   void     SetMarkerStyle(Style_t mstyle) override;
   void     SetMarkerSize(Size_t msize) override;
 
   //2. "Off-screen management" part.
   Int_t    CreateDrawable(UInt_t w, UInt_t h) override;
   void     ClearDrawable() override;
   void     CopyDrawable(Int_t device, Int_t px, Int_t py) override;
   void     DestroyDrawable(Int_t device) override;
   void     SelectDrawable(Int_t device) override;
 
   void     NewPage() override;
 
   //TASImage support (noop for a non-gl pad).
   void     DrawPixels(const unsigned char *pixelData, UInt_t width, UInt_t height,
                       Int_t dstX, Int_t dstY, Bool_t enableAlphaBlending) override;
 
   void     DrawLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2) override;
   void     DrawLineNDC(Double_t u1, Double_t v1, Double_t u2, Double_t v2) override;
 
   void     DrawBox(Double_t x1, Double_t y1, Double_t x2, Double_t y2, EBoxMode mode) override;
 
   //TPad needs double and float versions.
   void     DrawFillArea(Int_t n, const Double_t *x, const Double_t *y) override;
   void     DrawFillArea(Int_t n, const Float_t *x, const Float_t *y) override;
 
   //TPad needs both double and float versions of DrawPolyLine.
   void     DrawPolyLine(Int_t n, const Double_t *x, const Double_t *y) override;
   void     DrawPolyLine(Int_t n, const Float_t *x, const Float_t *y) override;
   void     DrawPolyLineNDC(Int_t n, const Double_t *u, const Double_t *v) override;
 
   void     DrawSegments(Int_t n, Double_t *x, Double_t *y) override;
   void     DrawSegmentsNDC(Int_t n, Double_t *u, Double_t *v) override;
 
   //TPad needs both versions.
   void     DrawPolyMarker(Int_t n, const Double_t *x, const Double_t *y) override;
   void     DrawPolyMarker(Int_t n, const Float_t *x, const Float_t *y) override;
 
   void     DrawText(Double_t x, Double_t y, const char *text, ETextMode mode) override;
   void     DrawText(Double_t x, Double_t y, const wchar_t *text, ETextMode mode) override;
   void     DrawTextNDC(Double_t u, Double_t v, const char *text, ETextMode mode) override;
   void     DrawTextNDC(Double_t u, Double_t v, const wchar_t *text, ETextMode mode) override;
 
   void     DrawTextUrl(Double_t x, Double_t y, const char *text, const char *url) override;
 
   //jpg, png, bmp, gif output.
   void     SaveImage(TVirtualPad *pad, const char *fileName, Int_t type) const override;
 
   void     OnPad(TVirtualPad *pad) override { fPad = pad; }
 
private:
   //Let's make this clear:
   TPadPainterPS(const TPadPainterPS &) = delete;
   TPadPainterPS(TPadPainterPS &&) = delete;
   TPadPainterPS &operator=(const TPadPainterPS &) = delete;
   TPadPainterPS &operator=(TPadPainterPS &&) = delete;
 
   ClassDefOverride(TPadPainterPS, 0) //TPad painting with TVirtualPS interface
};
 
#endif