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 renderText(int x, int y, std::string text, unsigned int colour, unsigned int bgcolour) { }
  30         virtual void blitSurface(Surface *src, int x, int y, int w, int h)  { }
  31         virtual unsigned int getWidth() const { return 800; }
  32         virtual unsigned int getHeight() const { return 600; }
  33         virtual void renderDone() { }
  34 };
  35
  36 class NullBackend : public Backend {
  37 protected:
  38         NullSurface surface;
  39
  40 public:
  41         virtual void init() { }
  42         virtual int networkInit() { return -1; }
  43         virtual void shutdown() { }
  44
  45         virtual void resize(unsigned int width, unsigned int height) { }
  46
  47         virtual unsigned int ticks() { return 0; }
  48         virtual bool pollEvent(SomeEvent &e) { return false; }
  49         virtual void handleEvents() { }
  50         virtual bool keyDown(int key) { return false; }
  51
  52         virtual bool selfRender() { return false; }
  53         virtual void requestRender() { }
  54
  55         virtual Surface *getMainSurface() { return &surface; }
  56         virtual Surface *newSurface(unsigned int width, unsigned int height) { return 0; }
  57         virtual void freeSurface(Surface *surf) { }
  58
  59         virtual void setPalette(uint8 *data) { }
  60         virtual unsigned int textWidth(std::string text) { return 0; }
  61         virtual void delay(int msec) { }
  62 };
  63
  64 #endif