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C/C++ Source or Header  |  1991-11-15  |  3.1 KB  |  115 lines
  1. /*******************************************************************************
  2. +
  3. +  LEDA  2.1.1                                                 11-15-1991
  4. +
  5. +
  6. +  _win_basic.c
  7. +
  8. +
  9. +  Copyright (c) 1991  by  Max-Planck-Institut fuer Informatik
  10. +  Im Stadtwald, 6600 Saarbruecken, FRG     
  11. +  All rights reserved.
  12. + 
  13. *******************************************************************************/
  14.  
  15.  
  16. #include <LEDA/window.h>
  17. #include "global.c"
  18.  
  19.  
  20.  
  21. static void window_error_handler(int i, char* s)
  22. { string mesg("LEDA Error(%d): %s",i,s);
  23.   if (i>0) // error
  24.   { x_draw_acknowledge(~mesg);
  25.     x_draw_end();
  26.     abort();
  27.    }
  28.   else default_error_handler(i,s);
  29.  }
  30.  
  31.  
  32. window::window(float width, float height, float xpos, float ypos)
  33. { state = 1;
  34.   x_draw_init_window(int(width),int(height),int(xpos),int(ypos),
  35.                                                         leda_version_string);
  36.   x_draw_init(0.0,100.0,0.0,0);
  37.   set_error_handler(window_error_handler);
  38.   set_flush(true); 
  39. }
  40.  
  41. window::window(float width, float height)
  42. { state = 1;
  43.   x_draw_init_window(int(width),int(height),SCREEN_WIDTH-int(width),0,
  44.                                                         leda_version_string);
  45.   x_draw_init(0.0,100.0,0.0,0);
  46.   set_error_handler(window_error_handler);
  47.   set_flush(true); 
  48. }
  49.  
  50.  
  51. void window::init(double x0,double x1,double y0,int gmode)
  52. { state = 1;
  53.   mesg_list.clear();
  54.   x_draw_init(x0,x1,y0,gmode); 
  55.  }
  56.  
  57. window::~window() 
  58. { set_error_handler(default_error_handler);
  59.   x_draw_end(); 
  60.  }
  61.  
  62. void window::set_redraw(redraw_func_ptr f) 
  63. { x_draw_set_redraw(f); }
  64.  
  65. bool window::set_font(char* s)             
  66. { return x_draw_set_font(s); }
  67.  
  68. void window::set_grid_mode(int i)     
  69. { x_draw_init(x_draw_xmin,x_draw_xmax,x_draw_ymin,i); }
  70.  
  71.  
  72. line_style window::set_line_style(line_style s) 
  73. { return (line_style)x_draw_set_line_style(s); }
  74.  
  75. int window::set_line_width(int w)    
  76. { return x_draw_set_line_width(w); }
  77.  
  78. drawing_mode window::set_mode(drawing_mode m) 
  79. { return (drawing_mode)x_draw_set_mode(m); }
  80.  
  81.  
  82. int window::set_node_width(int w)    
  83. { return x_draw_set_node_width(w); }
  84.  
  85. text_mode window::set_text_mode(text_mode m) 
  86. { return (text_mode)x_draw_set_text_mode(m); }
  87.  
  88. void  window::set_frame_label(string s) { x_draw_set_frame_label(~s); }
  89.  
  90. void  window::set_flush(bool b)       { x_draw_screen_flush = b; }
  91.  
  92. // getting parameters
  93.  
  94. int          window::get_line_width() { return x_draw_line_width;   }
  95. int          window::get_node_width() { return x_draw_node_width;   }
  96. line_style   window::get_line_style() { return x_draw_line_style;   }
  97. text_mode    window::get_text_mode()  { return x_draw_text_mode;    }
  98. drawing_mode window::get_mode()       { return x_draw_drawing_mode; }
  99.  
  100. int          window::mono()           { return (x_draw_depth==1);   }
  101.  
  102. double window::xmin() { return x_draw_xmin; }
  103. double window::xmax() { return x_draw_xmax; }
  104. double window::ymin() { return x_draw_ymin; }
  105. double window::ymax() { return x_draw_ymax; }
  106. double window::scale(){ return x_draw_scale; }
  107.  
  108. int window::xpix(double x) { return x_draw_xpix(x); }
  109. int window::ypix(double x) { return x_draw_ypix(x); }
  110.  
  111. double window::pixnum(int p){ return p/x_draw_scale; }
  112.  
  113. void window::flush() { x_draw_flush(); }
  114.  
  115.