bgidemo.c

电力变电站RTU监控软件（80C196NT单片机） 遥控

/*
   GRAPHICS DEMO FOR Borland C++ 

   Copyright (c) 1987, 1993 Borland International. All rights reserved.

   From the command line, use:

		bcc bgidemo graphics.lib

*/

#ifdef __TINY__
#error BGIDEMO will not run in the tiny model.
#endif

#include <dos.h>
#include <math.h>
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>

#include <graphics.h>

#define ESC     0x1b                    /* Define the escape key        */
#define TRUE    1                       /* Define some handy constants  */
#define FALSE   0                       /* Define some handy constants  */
#define PI      3.14159                 /* Define a value for PI        */
#define ON      1                       /* Define some handy constants  */
#define OFF     0                       /* Define some handy constants  */

#define NFONTS 11

char *Fonts[NFONTS] = {
  "DefaultFont",   "TriplexFont",   "SmallFont",
  "SansSerifFont", "GothicFont", "ScriptFont", "SimplexFont", "TriplexScriptFont",
  "ComplexFont", "EuropeanFont", "BoldFont"
};

char *LineStyles[] = {
  "SolidLn",  "DottedLn",  "CenterLn",  "DashedLn",  "UserBitLn"
};

char *FillStyles[] = {
  "EmptyFill",  "SolidFill",      "LineFill",      "LtSlashFill",
  "SlashFill",  "BkSlashFill",    "LtBkSlashFill", "HatchFill",
  "XHatchFill", "InterleaveFill", "WideDotFill",   "CloseDotFill"
};

char *TextDirect[] = {
  "HorizDir",  "VertDir"
};

char *HorizJust[] = {
  "LeftText",   "CenterText",   "RightText"
};

char *VertJust[] = {
  "BottomText",  "CenterText",  "TopText"
};

struct PTS {
  int x, y;
};      /* Structure to hold vertex points      */

int    GraphDriver;             /* The Graphics device driver           */
int    GraphMode;               /* The Graphics mode value              */
double AspectRatio;             /* Aspect ratio of a pixel on the screen*/
int    MaxX, MaxY;              /* The maximum resolution of the screen */
int    MaxColors;               /* The maximum # of colors available    */
int    ErrorCode;               /* Reports any graphics errors          */
struct palettetype palette;             /* Used to read palette info    */

/*                                                                      */
/*      Function prototypes                                             */
/*                                                                      */

void Initialize(void);
void ReportStatus(void);
void TextDump(void);
void Bar3DDemo(void);
void RandomBars(void);
void TextDemo(void);
void ColorDemo(void);
void ArcDemo(void);
void CircleDemo(void);
void PieDemo(void);
void BarDemo(void);
void LineRelDemo(void);
void PutPixelDemo(void);
void PutImageDemo(void);
void LineToDemo(void);
void LineStyleDemo(void);
void CRTModeDemo(void);
void UserLineStyleDemo(void);
void FillStyleDemo(void);
void FillPatternDemo(void);
void PaletteDemo(void);
void PolyDemo(void);
void SayGoodbye(void);
void Pause(void);
void MainWindow(char *header);
void StatusLine(char *msg);
void DrawBorder(void);
void changetextstyle(int font, int direction, int charsize);
int  gprintf(int *xloc, int *yloc, char *fmt, ... );

/*                                                                      */
/*      Begin main function                                             */
/*                                                                      */

int main()
{

  Initialize();                 /* Set system into Graphics mode        */
  ReportStatus();               /* Report results of the initialization */

  ColorDemo();                  /* Begin actual demonstration           */
  if( GraphDriver==EGA || GraphDriver==EGALO || GraphDriver==VGA )
    PaletteDemo();
  PutPixelDemo();
  PutImageDemo();
  Bar3DDemo();
  BarDemo();
  RandomBars();
  ArcDemo();
  CircleDemo();
  PieDemo();
  LineRelDemo();
  LineToDemo();
  LineStyleDemo();
  UserLineStyleDemo();
  TextDump();
  TextDemo();
  CRTModeDemo();
  FillStyleDemo();
  FillPatternDemo();
  PolyDemo();
  SayGoodbye();                 /* Give user the closing screen         */

  closegraph();                 /* Return the system to text mode       */
  return(0);
}

/*                                                                      */
/*      INITIALIZE: Initializes the graphics system and reports         */
/*      any errors which occured.                                       */
/*                                                                      */

void Initialize(void)
{
  int xasp, yasp;                       /* Used to read the aspect ratio*/

  GraphDriver = DETECT;                 /* Request auto-detection       */
  initgraph( &GraphDriver, &GraphMode, "" );
  ErrorCode = graphresult();            /* Read result of initialization*/
  if( ErrorCode != grOk ){              /* Error occured during init    */
    printf(" Graphics System Error: %s\n", grapherrormsg( ErrorCode ) );
    exit( 1 );
  }

  getpalette( &palette );               /* Read the palette from board  */
  MaxColors = getmaxcolor() + 1;        /* Read maximum number of colors*/

  MaxX = getmaxx();
  MaxY = getmaxy();                     /* Read size of screen          */

  getaspectratio( &xasp, &yasp );       /* read the hardware aspect     */
  AspectRatio = (double)xasp / (double)yasp; /* Get correction factor   */

}

/*                                                                      */
/*      REPORTSTATUS: Report the current configuration of the system    */
/*      after the auto-detect initialization.                           */
/*                                                                      */

void ReportStatus(void)
{
  struct viewporttype     viewinfo;     /* Params for inquiry procedures*/
  struct linesettingstype lineinfo;
  struct fillsettingstype fillinfo;
  struct textsettingstype textinfo;
  struct palettetype      palette;

  char *driver, *mode;                  /* Strings for driver and mode  */
  int x, y;

  getviewsettings( &viewinfo );
  getlinesettings( &lineinfo );
  getfillsettings( &fillinfo );
  gettextsettings( &textinfo );
  getpalette( &palette );

  x = 10;
  y = 4;

  MainWindow( "Status report after InitGraph" );
  settextjustify( LEFT_TEXT, TOP_TEXT );

  driver = getdrivername();
  mode = getmodename(GraphMode);        /* get current setting          */

  gprintf( &x, &y, "Graphics device    : %-20s (%d)", driver, GraphDriver );
  gprintf( &x, &y, "Graphics mode      : %-20s (%d)", mode, GraphMode );
  gprintf( &x, &y, "Screen resolution  : ( 0, 0, %d, %d )", getmaxx(), getmaxy() );

  gprintf( &x, &y, "Current view port  : ( %d, %d, %d, %d )",
  viewinfo.left, viewinfo.top, viewinfo.right, viewinfo.bottom );
  gprintf( &x, &y, "Clipping           : %s", viewinfo.clip ? "ON" : "OFF" );

  gprintf( &x, &y, "Current position   : ( %d, %d )", getx(), gety() );
  gprintf( &x, &y, "Colors available   : %d", MaxColors );
  gprintf( &x, &y, "Current color      : %d", getcolor() );

  gprintf( &x, &y, "Line style         : %s", LineStyles[ lineinfo.linestyle ] );
  gprintf( &x, &y, "Line thickness     : %d", lineinfo.thickness );

  gprintf( &x, &y, "Current fill style : %s", FillStyles[ fillinfo.pattern ] );
  gprintf( &x, &y, "Current fill color : %d", fillinfo.color );

  gprintf( &x, &y, "Current font       : %s", Fonts[ textinfo.font ] );
  gprintf( &x, &y, "Text direction     : %s", TextDirect[ textinfo.direction ] );
  gprintf( &x, &y, "Character size     : %d", textinfo.charsize );
  gprintf( &x, &y, "Horizontal justify : %s", HorizJust[ textinfo.horiz ] );
  gprintf( &x, &y, "Vertical justify   : %s", VertJust[ textinfo.vert ] );

  Pause();                              /* Pause for user to read screen*/

}

/*                                                                      */
/*      TEXTDUMP: Display the all the characters in each of the         */
/*      available fonts.                                                */
/*                                                                      */

void TextDump()
{
  static int CGASizes[]  = {
    1, 3, 7, 3, 3, 2, 2, 2, 2, 2, 2  };
  static int NormSizes[] = {
    1, 4, 7, 4, 4, 2, 2, 2, 2, 2, 2  };

  char buffer[80];
  int font, ch, wwidth, lwidth, size;
  struct viewporttype vp;

  for( font=0 ; font<NFONTS ; ++font ){ /* For each available font      */
    sprintf( buffer, "%s Character Set", Fonts[font] );
    MainWindow( buffer );               /* Display fontname as banner   */
    getviewsettings( &vp );             /* read current viewport        */

    settextjustify( LEFT_TEXT, TOP_TEXT );
    moveto( 2, 3 );

    buffer[1] = '\0';                   /* Terminate string             */
    wwidth = vp.right - vp.left;        /* Determine the window width   */
    lwidth = textwidth( "H" );          /* Get average letter width     */

    if( font == DEFAULT_FONT ){
      changetextstyle( font, HORIZ_DIR, 1 );
      ch = 0;
      while( ch < 256 ){                /* For each possible character  */
	buffer[0] = (char)ch;           /* Put character into a string  */
	outtext( buffer );              /* send string to screen        */
	if( (getx() + lwidth) > wwidth )
	  moveto( 2, gety() + textheight("H") + 3 );
	++ch;                           /* Goto the next character      */
      }
    }
    else{

      size = (MaxY < 200) ? CGASizes[font] : NormSizes[font];
      changetextstyle( font, HORIZ_DIR, size );

      ch = '!';                         /* Begin at 1st printable       */
      while( ch < 256 ){                /* For each printable character */
	buffer[0] = (char)ch;           /* Put character into a string  */
	outtext( buffer );              /* send string to screen        */
	if( (lwidth+getx()) > wwidth )  /* Are we still in window?      */
	  moveto( 2, gety()+textheight("H")+3 );
	++ch;                           /* Goto the next character      */
      }

    }

    Pause();                            /* Pause until user acks        */

  }                                     /* End of FONT loop             */

}

/*                                                                      */
/*      BAR3DDEMO: Display a 3-D bar chart on the screen.               */
/*                                                                      */

void Bar3DDemo(void)
{
  static int barheight[] = {
    1, 3, 5, 4, 3, 2, 1, 5, 4, 2, 3   };
  struct viewporttype vp;
  int xstep, ystep;
  int i, j, h, color, bheight;
  char buffer[10];

  MainWindow( "Bar 3-D / Rectangle Demonstration" );

  h = 3 * textheight( "H" );
  getviewsettings( &vp );
  settextjustify( CENTER_TEXT, TOP_TEXT );
  changetextstyle( TRIPLEX_FONT, HORIZ_DIR, 4 );
  outtextxy( MaxX/2, 6, "These are 3-D Bars" );
  changetextstyle( DEFAULT_FONT, HORIZ_DIR, 1 );
  setviewport( vp.left+50, vp.top+40, vp.right-50, vp.bottom-10, 1 );
  getviewsettings( &vp );

  line( h, h, h, vp.bottom-vp.top-h );
  line( h, (vp.bottom-vp.top)-h, (vp.right-vp.left)-h, (vp.bottom-vp.top)-h );
  xstep = ((vp.right-vp.left) - (2*h)) / 10;
  ystep = ((vp.bottom-vp.top) - (2*h)) / 5;
  j = (vp.bottom-vp.top) - h;
  settextjustify( CENTER_TEXT, CENTER_TEXT );

  for( i=0 ; i<6 ; ++i ){
    line( h/2, j, h, j );
    itoa( i, buffer, 10 );
    outtextxy( 0, j, buffer );
    j -= ystep;
  }

  j = h;
  settextjustify( CENTER_TEXT, TOP_TEXT );

  for( i=0 ; i<11 ; ++i ){
    color = random( MaxColors );
    setfillstyle( i+1, color );
    line( j, (vp.bottom-vp.top)-h, j, (vp.bottom-vp.top-3)-(h/2) );
    itoa( i, buffer, 10 );
    outtextxy( j, (vp.bottom-vp.top)-(h/2), buffer );
    if( i != 10 ){
      bheight = (vp.bottom-vp.top) - h - 1;
      bar3d( j, (vp.bottom-vp.top-h)-(barheight[i]*ystep), j+xstep, bheight, 15, 1 );
    }
    j += xstep;
  }

  Pause();                              /* Pause for user's response    */

}

/*                                                                      */