Backend.h

   1 /*
   2  *  Backend.h
   3  *  openc2e
   4  *
   5  *  Created by Alyssa Milburn on Sat Dec 2 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 _BACKEND_H
  21 #define _BACKEND_H
  22
  23 #include "endianlove.h"
  24 #include <boost/shared_ptr.hpp>
  25 #include <string>
  26
  27 using boost::shared_ptr;
  28
  29 enum eventtype { eventquit, eventkeydown, eventspecialkeyup, eventspecialkeydown, eventmousebuttondown, eventmousebuttonup, eventmousemove, eventresizewindow };
  30 enum eventbuttons { buttonleft=0x1, buttonright=0x2, buttonmiddle=0x4, buttonwheeldown=0x8, buttonwheelup=0x10 };
  31
  32 struct SomeEvent {
  33         eventtype type;
  34         int x, y, xrel, yrel;
  35         int key;
  36         unsigned int button;
  37 };
  38
  39 class creaturesImage;
  40
  41 class Surface {
  42 public:
  43         virtual void render(boost::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) = 0;
  44         virtual void renderLine(int x1, int y1, int x2, int y2, unsigned int colour) = 0;
  45         virtual void renderText(int x, int y, std::string text, unsigned int colour, unsigned int bgcolour) = 0;
  46         virtual void blitSurface(Surface *src, int x, int y, int w, int h) = 0;
  47         virtual unsigned int getWidth() const = 0;
  48         virtual unsigned int getHeight() const = 0;
  49         virtual void renderDone() = 0;
  50         virtual ~Surface() { }
  51 };
  52
  53 class Backend {
  54 public:
  55         virtual void init() = 0;
  56         virtual int networkInit() = 0;
  57         virtual void shutdown() = 0;
  58
  59         virtual unsigned int ticks() = 0;
  60         virtual bool pollEvent(SomeEvent &e) = 0;
  61         virtual void handleEvents() = 0;
  62         virtual bool keyDown(int key) = 0;
  63
  64         virtual bool selfRender() = 0;
  65         virtual void requestRender() = 0;
  66
  67         virtual void resize(unsigned int width, unsigned int height) = 0;
  68
  69         virtual Surface *getMainSurface() = 0;
  70         virtual Surface *newSurface(unsigned int width, unsigned int height) = 0;
  71         virtual void freeSurface(Surface *surf) = 0;
  72
  73         virtual void setPalette(uint8 *data) = 0;
  74         virtual unsigned int textWidth(std::string text) = 0;
  75
  76         virtual int run(int argc, char **argv);
  77         virtual void delay(int msec) = 0;
  78         virtual ~Backend() { }
  79 };
  80
  81 #endif