src/mousecursor.cpp

   1
   2 /***************************************************************************
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  ***************************************************************************/
  10
  11 // by Ricardo Cruz <rick2@aeiou.pt>
  12
  13 #include "screen.h"
  14 #include "mousecursor.h"
  15
  16 MouseCursor::MouseCursor(std::string cursor_file, int frames)
  17 {
  18 texture_load(&cursor,cursor_file.c_str(),USE_ALPHA);
  19
  20 cur_state = MC_NORMAL;
  21 cur_frame = 0;
  22 tot_frames = frames;
  23
  24 timer_init(&timer, false);
  25 timer_start(&timer,MC_FRAME_PERIOD);
  26
  27 SDL_ShowCursor(SDL_DISABLE);
  28 }
  29
  30 MouseCursor::~MouseCursor()
  31 {
  32   texture_free(&cursor);
  33
  34   SDL_ShowCursor(SDL_ENABLE);
  35 }
  36
  37 int MouseCursor::state()
  38 {
  39 return cur_state;
  40 }
  41
  42 void MouseCursor::set_state(int nstate)
  43 {
  44 cur_state = nstate;
  45 }
  46
  47 void MouseCursor::draw(int x, int y)
  48 {
  49 int w,h;
  50 w = cursor.w / tot_frames;
  51 h = cursor.h / MC_STATES_NB;
  52
  53 if(timer_get_left(&timer) < 0 && tot_frames > 1)
  54   {
  55   cur_frame++;
  56   if(cur_frame++ >= tot_frames)
  57     cur_frame = 0;
  58
  59   timer_start(&timer,MC_FRAME_PERIOD);
  60   }
  61
  62 texture_draw_part(&cursor, w*cur_frame, h*cur_state , x, y, w, h);
  63 }