NullBackend.h

   1 /*
   2  *  NullBackend.h
   3  *  openc2e
   4  *
   5  *  Created by Alyssa Milburn on Fri Dec 15 2006.
   6  *  Copyright (c) 2006 Alyssa Milburn. All rights reserved.
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2 of the License, or (at your option) any later version.
  12  *
  13  *  This library is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *  Lesser General Public License for more details.
  17  *
  18  */
  19
  20 #ifndef _NULLBACKEND_H
  21 #define _NULLBACKEND_H
  22
  23 #include "Backend.h"
  24
  25 class NullSurface : public Surface {
  26 public:
  27         virtual void render(shared_ptr<creaturesImage> image, unsigned int frame, int x, int y, bool trans = false, unsigned char transparency = 0, bool mirror = false, bool is_background = false) { }
  28         virtual void renderLine(int x1, int y1, int x2, int y2, unsigned int colour) { }
  29         virtual void blitSurface(Surface *src, int x, int y, int w, int h)  { }
  30         virtual unsigned int getWidth() const { return 800; }
  31         virtual unsigned int getHeight() const { return 600; }
  32         virtual void renderDone() { }
  33 };
  34
  35 class NullBackend : public Backend {
  36 protected:
  37         NullSurface surface;
  38
  39 public:
  40         virtual void init() { }
  41         virtual int networkInit() { return -1; }
  42         virtual void shutdown() { }
  43
  44         virtual void resize(unsigned int width, unsigned int height) { }
  45
  46         virtual unsigned int ticks() { return 0; }
  47         virtual bool pollEvent(SomeEvent &e) { return false; }
  48         virtual void handleEvents() { }
  49         virtual bool keyDown(int key) { return false; }
  50
  51         virtual bool selfRender() { return false; }
  52         virtual void requestRender() { }
  53
  54         virtual Surface *getMainSurface() { return &surface; }
  55         virtual Surface *newSurface(unsigned int width, unsigned int height) { return 0; }
  56         virtual void freeSurface(Surface *surf) { }
  57
  58         virtual void setPalette(uint8 *data) { }
  59         virtual void delay(int msec) { }
  60 };
  61
  62 #endif