本文目錄一覽：
C語言 設計一個 模擬計算器程序
#include dos.h /*DOS接口函數*/
#include math.h /*數學函數的定義*/
#include conio.h /*屏幕操作函數*/
#include stdio.h /*I/O函數*/
#include stdlib.h /*庫函數*/
#include stdarg.h /*變量長度參數表*/
#include graphics.h /*圖形函數*/
#include string.h /*字符串函數*/
#include ctype.h /*字符操作函數*/
#define UP 0x48 /*光標上移鍵*/
#define DOWN 0x50 /*光標下移鍵*/
#define LEFT 0x4b /*光標左移鍵*/
#define RIGHT 0x4d /*光標右移鍵*/
#define ENTER 0x0d /*回車鍵*/
void *rar; /*全局變量，保存光標圖象*/
struct palettetype palette; /*使用調色板信息*/
int GraphDriver; /* 圖形設備驅動*/
int GraphMode; /* 圖形模式值*/
int ErrorCode; /* 錯誤代碼*/
int MaxColors; /* 可用顏色的最大數值*/
int MaxX, MaxY; /* 屏幕的最大分辨率*/
double AspectRatio; /* 屏幕的像素比*/
void drawboder(void); /*畫邊框函數*/
void initialize(void); /*初始化函數*/
void computer(void); /*計算器計算函數*/
void changetextstyle(int font, int direction, int charsize); /*改變文本樣式函數*/
void mwindow(char *header); /*窗口函數*/
int specialkey(void) ; /*獲取特殊鍵函數*/
int arrow(); /*設置箭頭光標函數*/
/*主函數*/
int main()
{
initialize();/* 設置系統進入圖形模式 */
computer(); /*運行計算器 */
closegraph();/*系統關閉圖形模式返回文本模式*/
return(0); /*結束程序*/
}
/* 設置系統進入圖形模式 */
void initialize(void)
{
int xasp, yasp; /* 用于讀x和y方向縱橫比*/
GraphDriver = DETECT; /* 自動檢測顯示器*/
initgraph( GraphDriver, GraphMode, "" );
/*初始化圖形系統*/
ErrorCode = graphresult(); /*讀初始化結果*/
if( ErrorCode != grOk ) /*如果初始化時出現錯誤*/
{
printf("Graphics System Error: %s\n",
grapherrormsg( ErrorCode ) ); /*顯示錯誤代碼*/
exit( 1 ); /*退出*/
}
getpalette( palette ); /* 讀面板信息*/
MaxColors = getmaxcolor() + 1; /* 讀取顏色的最大值*/
MaxX = getmaxx(); /* 讀屏幕尺寸 */
MaxY = getmaxy(); /* 讀屏幕尺寸 */
getaspectratio( xasp, yasp ); /* 拷貝縱橫比到變量中*/
AspectRatio = (double)xasp/(double)yasp;/* 計算縱橫比值*/
}
/*計算器函數*/
void computer(void)
{
struct viewporttype vp; /*定義視口類型變量*/
int color, height, width;
int x, y,x0,y0, i, j,v,m,n,act,flag=1;
float num1=0,num2=0,result; /*操作數和計算結果變量*/
char cnum[5],str2[20]={""},c,temp[20]={""};
char str1[]="1230.456+-789*/Qc=^%";/* 定義字符串在按鈕圖形上顯示的符號 */
mwindow( "Calculator" ); /* 顯示主窗口 */
color = 7; /*設置灰顏色值*/
getviewsettings( vp ); /* 讀取當前窗口的大小*/
width=(vp.right+1)/10; /* 設置按鈕寬度 */
height=(vp.bottom-10)/10 ; /*設置按鈕高度 */
x = width /2; /*設置x的坐標值*/
y = height/2; /*設置y的坐標值*/
setfillstyle(SOLID_FILL, color+3);
bar( x+width*2, y, x+7*width, y+height );
/*畫一個二維矩形條顯示運算數和結果*/
setcolor( color+3 ); /*設置淡綠顏色邊框線*/
rectangle( x+width*2, y, x+7*width, y+height );
/*畫一個矩形邊框線*/
setcolor(RED); /*設置顏色為紅色*/
outtextxy(x+3*width,y+height/2,"0."); /*輸出字符串"0."*/
x =2*width-width/2; /*設置x的坐標值*/
y =2*height+height/2; /*設置y的坐標值*/
for( j=0 ; j4 ; ++j ) /*畫按鈕*/
{
for( i=0 ; i5 ; ++i )
{
setfillstyle(SOLID_FILL, color);
setcolor(RED);
bar( x, y, x+width, y+height ); /*畫一個矩形條*/
rectangle( x, y, x+width, y+height );
sprintf(str2,"%c",str1[j*5+i]);
/*將字符保存到str2中*/
outtextxy( x+(width/2), y+height/2, str2);
x =x+width+ (width / 2) ; /*移動列坐標*/
}
y +=(height/2)*3; /* 移動行坐標*/
x =2*width-width/2; /*復位列坐標*/
}
x0=2*width;
y0=3*height;
x=x0;
y=y0;
gotoxy(x,y); /*移動光標到x,y位置*/
arrow(); /*顯示光標*/
putimage(x,y,rar,XOR_PUT);
m=0;
n=0;
strcpy(str2,""); /*設置str2為空串*/
while((v=specialkey())!=45) /*當壓下Alt+x鍵結束程序，否則執行下面的循環*/
{
while((v=specialkey())!=ENTER) /*當壓下鍵不是回車時*/
{
putimage(x,y,rar,XOR_PUT); /*顯示光標圖象*/
if(v==RIGHT) /*右移箭頭時新位置計算*/
if(x=x0+6*width)
/*如果右移，移到尾，則移動到最左邊字符位置*/
{
x=x0;
m=0;
}
else
{
x=x+width+width/2;
m++;
} /*否則，右移到下一個字符位置*/
if(v==LEFT) /*左移箭頭時新位置計算*/
if(x=x0)
{
x=x0+6*width;
m=4;
} /*如果移到頭，再左移，則移動到最右邊字符位置*/
else
{
x=x-width-width/2;
m--;
} /*否則，左移到前一個字符位置*/
if(v==UP) /*上移箭頭時新位置計算*/
if(y=y0)
{
y=y0+4*height+height/2;
n=3;
} /*如果移到頭，再上移，則移動到最下邊字符位置*/
else
{
y=y-height-height/2;
n--;
} /*否則，移到上邊一個字符位置*/
if(v==DOWN) /*下移箭頭時新位置計算*/
if(y=7*height)
{
y=y0;
n=0;
} /*如果移到尾，再下移，則移動到最上邊字符位置*/
else
{
y=y+height+height/2;
n++;
} /*否則，移到下邊一個字符位置*/
putimage(x,y,rar,XOR_PUT); /*在新的位置顯示光標箭頭*/
}
c=str1[n*5+m]; /*將字符保存到變量c中*/
if(isdigit(c)||c=='.') /*判斷是否是數字或小數點*/
{
if(flag==-1) /*如果標志為-1，表明為負數*/
{
strcpy(str2,"-"); /*將負號連接到字符串中*/
flag=1;
} /*將標志值恢復為1*/
sprintf(temp,"%c",c); /*將字符保存到字符串變量temp中*/
strcat(str2,temp); /*將temp中的字符串連接到str2中*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,str2); /*顯示字符串*/
}
if(c=='+')
{
num1=atof(str2); /*將第一個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=1; /*做計算加法標志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='-')
{
if(strcmp(str2,"")==0) /*如果str2為空，說明是負號，而不是減號*/
flag=-1; /*設置負數標志*/
else
{
num1=atof(str2); /*將第二個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=2; /*做計算減法標志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*畫矩形*/
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
}
if(c=='*')
{
num1=atof(str2); /*將第二個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=3; /*做計算乘法標志值*/
setfillstyle(SOLID_FILL,color+3); bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='/')
{
num1=atof(str2); /*將第二個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=4; /*做計算除法標志值*/
setfillstyle(SOLID_FILL,color+3);
bar(2*width+width/2,height/2,15*width/2,3*height/2);
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='^')
{
num1=atof(str2); /*將第二個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=5; /*做計算乘方標志值*/
setfillstyle(SOLID_FILL,color+3); /*設置用淡綠色實體填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*畫矩形*/
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='%')
{
num1=atof(str2); /*將第二個操作數轉換為浮點數*/
strcpy(str2,""); /*將str2清空*/
act=6; /*做計算模運算乘方標志值*/
setfillstyle(SOLID_FILL,color+3); /*設置用淡綠色實體填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*畫矩形*/
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='=')
{
num2=atof(str2); /*將第二個操作數轉換為浮點數*/
switch(act) /*根據運算符號計算*/
{
case 1:result=num1+num2;break; /*做加法*/
case 2:result=num1-num2;break; /*做減法*/
case 3:result=num1*num2;break; /*做乘法*/
case 4:result=num1/num2;break; /*做除法*/
case 5:result=pow(num1,num2);break; /*做x的y次方*/
case 6:result=fmod(num1,num2);break; /*做模運算*/
}
setfillstyle(SOLID_FILL,color+3); /*設置用淡綠色實體填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*覆蓋結果區*/
sprintf(temp,"%f",result); /*將結果保存到temp中*/
outtextxy(5*width,height,temp); /*顯示結果*/
}
if(c=='c')
{
num1=0; /*將兩個操作數復位0，符號標志為1*/
num2=0;
flag=1;
strcpy(str2,""); /*將str2清空*/
setfillstyle(SOLID_FILL,color+3); /*設置用淡綠色實體填充*/
bar(2*width+width/2,height/2,15*width/2,3*height/2); /*覆蓋結果區*/
outtextxy(5*width,height,"0."); /*顯示字符串*/
}
if(c=='Q')exit(0); /*如果選擇了q回車，結束計算程序*/
}
putimage(x,y,rar,XOR_PUT); /*在退出之前消去光標箭頭*/
return; /*返回*/
}
/*窗口函數*/
void mwindow( char *header )
{
int height;
cleardevice(); /* 清除圖形屏幕 */
setcolor( MaxColors - 1 ); /* 設置當前顏色為白色*/
setviewport( 20, 20, MaxX/2, MaxY/2, 1 ); /* 設置視口大小 */
height = textheight( "H" ); /* 讀取基本文本大小 */
settextstyle( DEFAULT_FONT, HORIZ_DIR, 1 );/*設置文本樣式*/
settextjustify( CENTER_TEXT, TOP_TEXT );/*設置字符排列方式*/
outtextxy( MaxX/4, 2, header ); /*輸出標題*/
setviewport( 20,20+height+4, MaxX/2+4, MaxY/2+20, 1 ); /*設置視口大小*/
drawboder(); /*畫邊框*/
}
void drawboder(void) /*畫邊框*/
{
struct viewporttype vp; /*定義視口類型變量*/
setcolor( MaxColors - 1 ); /*設置當前顏色為白色 */
setlinestyle( SOLID_LINE, 0, NORM_WIDTH );/*設置畫線方式*/
getviewsettings( vp );/*將當前視口信息裝入vp所指的結構中*/
rectangle( 0, 0, vp.right-vp.left, vp.bottom-vp.top ); /*畫矩形邊框*/
}
/*設計鼠標圖形函數*/
int arrow()
{
int size;
int raw[]={4,4,4,8,6,8,14,16,16,16,8,6,8,4,4,4}; /*定義多邊形坐標*/
setfillstyle(SOLID_FILL,2); /*設置填充模式*/
fillpoly(8,raw); /*畫出一光標箭頭*/
size=imagesize(4,4,16,16); /*測試圖象大小*/
rar=malloc(size); /*分配內存區域*/
getimage(4,4,16,16,rar); /*存放光標箭頭圖象*/
putimage(4,4,rar,XOR_PUT); /*消去光標箭頭圖象*/
return 0;
}
/*按鍵函數*/
int specialkey(void)
{
int key;
while(bioskey(1)==0); /*等待鍵盤輸入*/
key=bioskey(0); /*鍵盤輸入*/
key=key0xff? key0xff:key8; /*只取特殊鍵的掃描值，其余為0*/
return(key); /*返回鍵值*/
}
用C語言設計一個簡單計算器
#includestdio.h?
void?add(int?a,int?b,int?c)?
{?
?c=a+b;?
?printf("%d\t",c);?
?printf("\n");?
}?
void?minus(int?a,int?b,int?c)?
{?
?c=a-b;?
?printf("%d\t",c);?
?printf("\n");?
}?
void?multiplication(int?a,int?b,int?c)?
{?
?c=a*b;?
?printf("%d\t",c);?
?printf("\n");?
}?
void?div(int?a,int?b,int?c)?
{?
?c=(float)a/(float)b;?
?printf("%f\t",c);?
?printf("\n");?
}?
main()?
{?
?int?a,b,c;?
?char?p;?
?puts("input?A:\n");?
?scanf("%d",a);?
?puts("input?B:\n");?
?scanf("%d",b);?
?puts("input?operation:\n");?
?getchar();?
?p=getchar();?
?if(p=='+')?add(a,b,c);else?
??if(p=='-')?minus(a,b,c);else?
???if(p=='*')?multiplication(a,b,c);else?
????if(p=='/')?div(a,b,c);else?
?????puts("沒有注冊這個運算符號\n");?
}
以上是設計的一個簡易計算器。可以進行相應的加減乘除。
簡介：
C語言是一種計算機程序設計語言，它既具有高級語言的特點，又具有匯編語言的特點。它由美國貝爾研究所的D.M.Ritchie于1972年推出，1978年后，C語言已先后被移植到大、中、小及微型機上，它可以作為工作系統設計語言，編寫系統應用程序，也可以作為應用程序設計語言，編寫不依賴計算機硬件的應用程序。它的應用范圍廣泛，具備很強的數據處理能力，不僅僅是在軟件開發上，而且各類科研都需要用到C語言，適于編寫系統軟件，三維，二維圖形和動畫，具體應用比如單片機以及嵌入式系統開發。
橡皮英文
eraser
讀音：英 [??re?z?(r)]? ?美 [??re?s?r]
n.主美橡皮擦，板擦
復數： erasers
例句：
1、I have an eraser.
我有一個橡皮。
2、Yes, I have your eraser, too.
是的，我還拿了你的橡皮。
3、I forget my eraser, May I borrow yours?
我忘了我的橡皮擦，我可以借你的嗎？
擴展資料：
其它文具英文
一、correction fluid
讀音：英 [k??rek??n ?flu:?d]? ?美 [k??r?k??n ?flu?d]
n.修正液，糾正液
例句：Do not use correction fluid on the authorization.
請勿用涂改液刪改。
二、sharpener
讀音：英 [??ɑ:pn?(r)]? ?美 [??ɑ:rpn?(r)]
n.卷筆刀;磨具;磨床;磨器
復數： sharpeners
例句：Here's a pencil sharpener.
這兒有一個卷筆刀。
三、pencil
讀音：英 [?pensl]? ?美 [?p?ns?l]
n.鉛筆，彩色鉛筆;筆狀物;畫風，畫法;[物]光線錐
vt.用鉛筆寫;用畫筆畫
第三人稱單數： pencils
復數： pencils
現在分詞： pencilling
過去式： pencilled
過去分詞： pencilled
例句：Have a pencil and notepad ready.
準備好鉛筆和筆記本。
四、ruler
讀音：英 [?ru:l?(r)]? ?美 [?rul?]
n.統治者;尺;直尺
復數： rulers
例句：The ruler cracked and splintered into pieces
尺子裂開了，碎成了小片。
怎么用C語言做二維 三維 動畫 窗口的程序?
我有相關的資料(原版英文書), 但無法傳遞給你!!! 給你個實例程序:(太長,程序沒發完)
/*
GRAPHICS DEMO FOR TURBO C 2.0
Copyright (c) 1987,88 Borland International. All rights reserved.
From the command line, use:
tcc 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 */
char *Fonts[] = {
"DefaultFont", "TriplexFont", "SmallFont",
"SansSerifFont", "GothicFont"
};
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 };
static int NormSizes[] = {
1, 4, 7, 4, 4 };
char buffer[80];
int font, ch, wwidth, lwidth, size;
struct viewporttype vp;
for( font=0 ; font5 ; ++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] = 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 127 ){ /* For each printable character */
buffer[0] = 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 ; i6 ; ++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 ; i11 ; ++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 */
}
/* */
/* RANDOMBARS: Display random bars */
/* */
void RandomBars(void)
{
int color;
MainWindow( "Random Bars" );
StatusLine( "Esc aborts or press a key..." ); /* Put msg at bottom of screen */
while( !kbhit() ){ /* Until user enters a key... */
color = random( MaxColors-1 )+1;
setcolor( color );
setfillstyle( random(11)+1, color );
bar3d( random( getmaxx() ), random( getmaxy() ),
random( getmaxx() ), random( getmaxy() ), 0, OFF);
}
Pause(); /* Pause for user's response */
}
/* */
/* TEXTDEMO: Show each font in several sizes to the user. */
/* */
void TextDemo(void)
{
int charsize[] = {
1, 3, 7, 3, 4 };
int font, size;
int h, x, y, i;
struct viewporttype vp;
char buffer[80];
for( font=0 ; font5 ; ++font ){ /* For each of the four fonts */
sprintf( buffer, "%s Demonstration", Fonts[font] );
MainWindow( buffer );
getviewsettings( vp );
changetextstyle( font, VERT_DIR, charsize[font] );
settextjustify( CENTER_TEXT, BOTTOM_TEXT );
outtextxy( 2*textwidth("M"), vp.bottom - 2*textheight("M"), "Vertical" );
changetextstyle( font, HORIZ_DIR, charsize[font] );
settextjustify( LEFT_TEXT, TOP_TEXT );
outtextxy( 2*textwidth("M"), 2, "Horizontal" );
settextjustify( CENTER_TEXT, CENTER_TEXT );
x = (vp.right - vp.left) / 2;
y = textheight( "H" );
for( i=1 ; i5 ; ++i ){ /* For each of the sizes */
size = (font == SMALL_FONT) ? i+3 : i;
changetextstyle( font, HORIZ_DIR, size );
h = textheight( "H" );
y += h;
sprintf( buffer, "Size %d", size );
outtextxy( x, y, buffer );
}
if( font != DEFAULT_FONT ){ /* Show user declared font size */
y += h / 2; /* Move down the screen */
settextjustify( CENTER_TEXT, TOP_TEXT );
setusercharsize( 5, 6, 3, 2 );
changetextstyle( font, HORIZ_DIR, USER_CHAR_SIZE );
outtextxy( (vp.right-vp.left)/2, y, "User Defined Size" );
}
Pause(); /* Pause to let user look */
} /* End of FONT loop */
}
/* */
/* COLORDEMO: Display the current color palette on the screen. */
/* */
void ColorDemo(void)
{
struct viewporttype vp;
int color, height, width;
int x, y, i, j;
char cnum[5];
MainWindow( "Color Demonstration" ); /* Show demonstration name */
color = 1;
getviewsettings( vp ); /* Get the current window size */
width = 2 * ( (vp.right+1) / 16 ); /* Get box dimensions */
height = 2 * ( (vp.bottom-10) / 10 );
x = width / 2;
y = height / 2; /* Leave 1/2 box border */
for( j=0 ; j3 ; ++j ){ /* Row loop */
for( i=0 ; i5 ; ++i ){ /* Column loop */
setfillstyle(SOLID_FILL, color); /* Set to solid fill in color */
setcolor( color ); /* Set the same border color */
bar( x, y, x+width, y+height ); /* Draw the rectangle */
rectangle( x, y, x+width, y+height ); /* outline the rectangle */
if( color == BLACK ){ /* If box was black... */
setcolor( WHITE ); /* Set drawing color to white */
rectangle( x, y, x+width, y+height ); /* Outline black in white*/
}
itoa( color, cnum, 10 ); /* Convert # to ASCII */
outtextxy( x+(width/2), y+height+4, cnum ); /* Show color # */
color = ++color % MaxColors; /* Advance to the next color */
x += (width / 2) * 3; /* move the column base */
} /* End of Column loop */
y += (height / 2) * 3; /* move the row base */
x = width / 2; /* reset column base */
} /* End of Row loop */
Pause(); /* Pause for user's response */
}
/* */
/* ARCDEMO: Display a random pattern of arcs on the screen */
/* until the user says enough. */
/* */
void ArcDemo(void)
{
int mradius; /* Maximum radius allowed */
int eangle; /* Random end angle of Arc */
struct arccoordstype ai; /* Used to read Arc Cord info */
MainWindow( "Arc Demonstration" );
StatusLine( "ESC Aborts - Press a Key to stop" );
mradius = MaxY / 10; /* Determine the maximum radius */
while( !kbhit() ){ /* Repeat until a key is hit */
setcolor( random( MaxColors - 1 ) + 1 ); /* Randomly select a color */
eangle = random( 358 ) + 1; /* Select an end angle */
arc( random(MaxX), random(MaxY), random(eangle), eangle, mradius );
getarccoords( ai ); /* Read Cord data */
line( ai.x, ai.y, ai.xstart, ai.ystart ); /* line from start to center */
line( ai.x, ai.y, ai.xend, ai.yend ); /* line from end to center */
} /* End of WHILE not KBHIT */
Pause(); /* Wait for user's response */
}
