sdl/PlatformWidget.h

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//* -*- mode:C++; tab-width:4; c-basic-offset:4; indent-tabs-mode:nil -*- */
//    Name:       src/platforms/sdl/PlatformWidget.h
//    Purpose:    Contains SDL-specific interface for GUI Objects
//    Author:     Shane T. Mueller, Ph.D.
//    Copyright:  (c) 2003-2026 Shane T. Mueller <smueller@obereed.net>
//    License:    GPL 2
//
//
//
//     This file is part of the PEBL project.
//
//    PEBL is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    PEBL is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with PEBL; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#ifndef __PLATFORMWIDGET_H__
#define __PLATFORMWIDGET_H__
 
 
#include "../../objects/PWidget.h"
#include "../../utility/Defs.h"
#include "SDL.h"
 
 
 
class PlatformWidget:  virtual public PWidget
{
public:
  
    PlatformWidget();
    virtual ~PlatformWidget();
  
 
    virtual bool Draw();
 
 
    //    virtual SDL_Surface * GetSDL_Surface();
    virtual SDL_Texture * GetSDL_Texture();
 
    void SetParent(PlatformWidget * parent);
 
#ifdef SD2_DELETE
    //For sdl2, lets try to get rid of 'parent surface' notion,
    //and use 'parent widget' instead, which is part of PWidget
    virtual void SetParentSurface(SDL_Surface * surface);
#endif
 
    SDL_Surface * GetSurface(){return mSurface;};
 
    virtual bool SetRenderer(SDL_Renderer* renderer);
    SDL_Renderer* GetRenderer(){return mRenderer;};
    virtual bool AddToParentWidget(PlatformWidget * parent);
    virtual bool AddSubWidget(PlatformWidget * widget);
    virtual bool RemoveSubWidget(PlatformWidget * widget);
    virtual bool RemoveSubWidgets();
    virtual bool RotoZoom(double angle, double zoomx, double zoomy, int smooth);
 
 
    //Draws a pixel on the widget.
    bool SetPoint(int x, int y, PColor col);
    PColor GetPixel(int x, int y);
 
 
protected:
 
    //These are inherited by the SDL-specific widgets:    
    virtual std::ostream & SendToStream(std::ostream& out) const;
 
    virtual void PrintSubWidgets(std::ostream& out) const;
    //Obsolete:
    virtual bool LockSurface();
    virtual bool UnlockSurface();
 
    //Size of base 'texture', useful for zoom calculating.
    pInt mTextureWidth;
    pInt mTextureHeight;
 
    bool mNeedsTexture;  //true for most widgets, false for drawobjects.
    //Texture shuold only get
    SDL_Texture * mTexture;
    SDL_Surface * mSurface; 
    //Widgets get created on a surface,
    //and transferred to a texture when it gets added to a window.
    //using addsubwidget.
    SDL_Renderer * mRenderer;
 
 
 
};
 
 
#endif