画图软件C程序代码.doc

include
#include
#include
#include
#include
#include
#include
#include

/*定义常量*/
/*向上翻页移键*/
#define PAGEUP 0x4900
/*向下翻页移键*/
#define PAGEDOWN 0x5100
/*Escape键*/
#define ESC 0x011b
/*左移键*/
#define LEFT 0x4b00
/*右移键*/
#define RIGHT 0x4d00
/*下移键*/
#define DOWN 0x5000
/*上移键*/
#define UP 0x4800
/*空格键*/
#define SPACE 0x3920

#define NO_PRESSED 0
#define LEFT_PRESSED 1
#define RIGHT_PRESSED 2
#define pi 3.1415926

/*定义全局变量*/
int Rx,Ry,R;
int TOPx,TOPy,BOTTOMx,BOTTOMy;
int Centx,Centy;
int lineStartx,lineStarty,lineEndx,lineEndy;
int linePoint_x[20],linePoint_y[20];

/*这里的字模数组均由“点阵字模工具”生成，你可以用你自己需要的点阵信息来
替换示例中的字模信息，注意字模大小要一致，否则显示会出问题。*/
char zhi16K[]={
/* 以下是 '直' 的 16点阵楷体_GB2312 字模，32 byte */
0x01,0x00,0x01,0x00,0x01,0xF0,0x1E,0x00,
0x02,0x00,0x07,0xC0,0x08,0x40,0x0F,0x40,
0x08,0x40,0x0F,0x40,0x08,0x40,0x0F,0x40,
0x08,0x40,0x0F,0xFC,0x70,0x00,0x00,0x00,
};

char xian16K[]={
/* 以下是 '线' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x80,0x00,0x90,0x08,0x88,0x10,0x80,
0x24,0xF0,0x45,0x80,0x78,0xB0,0x11,0xC0,
0x2C,0x88,0x70,0x50,0x04,0x60,0x18,0xA4,
0x63,0x14,0x00,0x0C,0x00,0x04,0x00,0x00,
};

char ju16K[]={
/* 以下是 '矩' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x00,0x08,0x00,0x08,0x78,0x10,0x80,
0x1E,0x80,0x28,0xF8,0x48,0x88,0x0E,0x88,
0xF8,0xF0,0x08,0x80,0x14,0x80,0x12,0x9E,
0x20,0xE0,0x40,0x00,0x00,0x00,0x00,0x00,
};

char xing16K[]={
/* 以下是 '形' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x00,0x07,0x88,0x3A,0x08,0x12,0x10,
0x12,0x20,0x17,0x48,0xFA,0x10,0x12,0x20,
0x12,0xC8,0x12,0x08,0x22,0x10,0x42,0x20,
0x00,0x40,0x00,0x80,0x03,0x00,0x00,0x00,
};

char yuan16K[]={
/* 以下是 '圆' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0xF8,0x3F,0x08,0x23,0x88,0x24,0x88,
0x27,0x08,0x21,0xC8,0x2E,0x48,0x29,0x48,
0x29,0x48,0x22,0x88,0x24,0x48,0x28,0x08,
0x3F,0xE8,0x00,0x10,0x00,0x00,0x00,0x00,
};

char qing16K[]={
/* 以下是 '清' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x80,0x00,0xE0,0x33,0x80,0x10,0xE0,
0x03,0x80,0x40,0xFC,0x2F,0x00,0x01,0xE0,
0x12,0x20,0x13,0xA0,0x22,0x20,0x63,0xA0,
0x42,0x20,0x02,0x60,0x00,0x20,0x00,0x00,
};

char ping16K[]={
/* 以下是 '屏' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0xF0,0x0F,0x30,0x08,0x60,0x0F,0x80,
0x0A,0x20,0x09,0x40,0x08,0xF8,0x17,0x20,
0x11,0x3E,0x2F0xE0,0x21,0x20,0x42,0x20,
0x82,0x20,0x04,0x20,0x08,0x20,0x00,0x00,
};

char bao16K[]={
/* 以下是 '保' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x00,0x09,0xF0,0x0A,0x10,0x12,0x10,
0x13,0xE0,0x30,0x80,0x50,0xFC,0x9F,0x80,
0x11,0xC0,0x12,0xA0,0x14,0x98,0x18,0x8E,
0x10,0x80,0x10,0x80,0x00,0x000x00,0x00,
};

char cun16K[]={
/* 以下是 '存' 的 16点阵楷体_GB2312 字模，32 byte */
0x01,0x00,0x01,0x00,0x01,0xF0,0x1E,0x00,
0x02,0x70,0x05,0x90,0x08,0x20,0x08,0x40,
0x18,0x7E,0x2B,0xA0,0xC8,0x20,0x08,0x20,
0x08,0x20,0x08,0xA0,0x00,0x40,0x00,0x00,
};

char jia16K[]={
/* 以下是 '加' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x00,0x08,0x00,0x08,0x00,0x08,0x00,
0x0F,0x00,0x79,0x3C,0x09,0x44,0x11,0x44,
0x11,0x44,0x22,0x44,0x22,0x78,0x4A,0x00,
0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

char zai16K[]={
/* 以下是 '载' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x80,0x08,0xA0,0x08,0x90,0x0E,0x80,
0x38,0xF0,0x0F,0x80,0x78,0x50,0x0E,0x50,
0x34,0x20,0x1E,0x20,0x34,0x50,0x0E,0x92,
0x75,0x0A,0x04,0x06,0x04,0x02,0x00,0x00,
};

char bang16K[]={
/* 以下是 '帮' 的 16点阵楷体_GB2312 字模，32 byte */
0x04,0x00,0x07,0x38,0x1C,0x48,0x06,0x50,
0x1C,0x50,0x07,0x48,0x78,0x58,0x11,0x40,
0x21,0xF0,0x4F,0x10,0x09,0x10,0x09,0x50,
0x09,0x20,0x01,0x00,0x01,0x00,0x00,0x00,
};

char zhu16K[]={
/* 以下是 '助' 的 16点阵楷体_GB2312 字模，32 byte */
0x00,0x00,0x00,0x20,0x0C,0x20,0x34,0x20,
0x24,0x20,0x34,0x38,0x25,0xC8,0x34,0x48,
0x24,0x48,0x26,0x88,0x38,0x88,0xE1,0x28,
0x02,0x10,0x04,0x00,0x00,0x00,0x00,0x00,
};

/*自定义函数*/
void outChinese(char *mat,int matsize,int x,int y,int color);
void fill(int startx,int starty,int endx,int endy,int color);
void showHelp();

void save();
void load();

int mouseStatus(int* x,int* y);
int setMousePos(int x, int y);
void DrawMouse(float x,float y);

void DrawLine();
void DrawRectangle();
void LineToCircle(int x0,int y0,int r);
void DrawCircle();
long factorial(int n);
float berFunction(int i,int n,double t);
void DrawBezier();

/*根据点阵信息显示中文函数*/
void outChinese(char *mat,int matsize,int x,int y,int color)
/*依次：字模指针、点阵大小、起始坐标(x,y)、颜色*/
{
int i, j, k, n;
n = (matsize - 1) / 8 + 1;
for(j = 0; j < matsize; j++)
for(i = 0; i < n; i++)
for(k = 0;k < 8; k++)
if(mat[j * n + i] & (0x80 >> k))
/*测试为1的位则显示*/
putpixel(x + i * 8 + k, y + j, color);
}

/*填充函数*/
void fillint startx,int starty,int endx,int endy,int color)
{
int i,j;
for(i=startx;i<=endx;i++)
for(j=starty;j<=endy;j++)
/*在指定位置以指定颜色画一像素*/
putpixel(i,j,color);

}

/*显示用户帮助函数*/
void showHelp()
{
setcolor(14);
outtextxy(45,50,"Line:");
setcolor(WHITE);
outtextxy(45,50," 1 Press left button to start until to line end.");
outtextxy(45,65," 2 Use UP,DOWN,LEFT,RIGHT keys to move it.");
outtextxy(45,80," 3 Use PAGEUP key to enlarge it, and PAGEDOWN key to shrink it.");
outtextxy(45,95," 4 Use SPACE key to rotate it.");

setcolor(14);
outtextxy(45,120,"Rectangle:");
setcolor(WHITE);
outtextxy(45,120," 1 Press left button to start until to right corner.");
outtextxy(45,135," 2 Use UP,DOWN,LEFT,RIGHT keys to move it.");
outtextxy(45,150," 3 Use PAGEUP key to enlarge it, and PAGEDOWN key to shrink it.");

setcolor(14);
outtextxy(45,170,"Circle:");
setcolor(WHITE);
outtextxy(45,170," 1 Press left button to start until to end.");
outtextxy(45,185," 2 Use PAGEUP key to enlarge it, and PAGEDOWN key to shrink it.");

setcolor(14);
outtextxy(45,205,"Bezier:");
setcolor(WHITE);
outtextxy(45,205," Press left button to start, and right button to end.");

outtextxy(45,230,"Press ESC key to stop the operation function.");
outtextxy(45,245,"Press right button to end the drawing works.");
outtextxy(45,260,"Press any key to continue......");
getch();
fill(40,40,625,270,0);

}

/*保存函数*/
void save()
{
int i,j;
FILE *fp;
char fileName[20];

fill(0,447,630,477,2);
gotoxy(1,25);
printf("\n\n\n\n Input the file name[.dat]:");
scanf("%s",fileName);
fill(0,447,630,477,2);

/*以读写的方式打开文件*/
if((fp=fopen(fileName,"w+"))==NULL)
{
outtextxy(260,455,"Failed to open file!");
exit(0);
}
outtextxy(280,455,"saving...");

/*保存像素到文件*/
for(i=5;i<630;i++)
for(j=30;j<=445;j++)
fputc(getpixel(i,j),fp);
fclose(fp);

fill(0,447,630,477,2);
outtextxy(260,455,"save over!");
}

/*打开函数*/
void load()
{
int i,j;
char fileName[20];
FILE *fp;

fill(0,447,630,477,2);
gotoxy(125);
printf("\n\n\n\n Input the file name[.dat]:");
scanf("%s",fileName);

/*打开指定的文件*/
if((fp=fopen(fileName,"r+"))!=NULL)
{
fill(0,447,630,477,2);
outtextxy(280,455,"loading...");

/*从文件中读出像素*/
for(i=5;i<630;i++)
for(j=30;j<=445;j++)
putpixel(i,j,fgetc(fp));
fill(0,447,630,477,2);
outtextxy(280,455,"loading over !");
}
/*打开失败*/
else
{
fill(0,447,630,477,2);
outtextxy(260,455,"Failed to open file!");

}
fclose(fp);
}

/*获取鼠标状态函数*/
int mouseStatus(int* x,int* y)
{
/*定义两个寄存器变量，分别存储入口参数和出口参数*/
union REGS inregs,outregs;
int status;
status=NO_PRESSED;

/*入口参数AH＝3，读取鼠标位置及其按钮状态*/
inregs.x.ax=3;
int86(0x33,&inregs,&outregs);
/*CX表示水平位置，DX表示垂直位置*/
*x=outregs.x.cx;
*y=outregs.x.dx

/*BX表示按键状态*/
if(outregs.x.bx&1)
status=LEFT_PRESSED;
else if(outregs.x.bx&2)
status=RIGHT_PRESSED;
return (status);
}

/*设置鼠标指针位置函数*/
int setMousePos(int x,int y)
{
union REGS inregs,outregs;

/*入口参数AH＝4，设置鼠标指针位置*/
inregs.x.ax=4;
inregs.x.cx=x;
inregs.x.dx=y;
int86(0x33,&inregs,&outregs);
}

/*绘制鼠标函数*/
void DrawMouse(float x,float y)
{
line(x,y,x+5,y+15);
line(x,y,x+15,y+5);
line(x+5,y+15,x+15,y+5);
line(x+11,y+9,x+21,y+19);
line(x+9,y+11,x+19,y+21);
line(x+22,y+19,x+20,y+21);
}

/*绘制直线函数*/
void DrawLine()
{
int x0,y0,x1,y1;
int last_x=0,last_y=0;
int endFlag=0;
int key;
int temStartx,temStarty,temEndx,temEndy;
int increment_x,increment_y,angle;

DrawMouse(last_x,last_y);
while(1)
{
/*右键结束画直线*/
while((mouseStatus(&x1,&y1)==RIGHT_PRESSED))
endFlag=1;
if(endFlag==1)
break;
/*鼠标移动，没有单击，仅仅画移动的鼠标*/
while(mouseStatus(&x1,&y1) == NO_PRESSED)
{
if(last_x!=x1||last_y!=y1)
{
DrawMouse(last_x,last_y);
DrawMouse(x1,y1);
last_x=x1;
last_y=y1;
}
}
/*单击左键后，开始画直线*/
if(mouseStatus(&x0,&y0)==LEFT_PRESSED)
{
DrawMouse(last_x,last_y);
line(x0,y0,x1,y1);
last_x=x1;
last_y=y1;
/*拉动过程中，画直线和鼠标*/
while(mouseStatus(&x1, &y1)==LEFT_PRESSED)
{
if(last_x!=x1||last_y!=y1)
{
line(x0,y0,last_x,last_y);
line(x0,y0,x1,y1);
last_x=x1;
last_y=y1;
}
}
/*松开左键后，画直线完成，记录直线的起始位置*/
lineStartx=x0;
lineStarty=y0;
lineEndx=x1;
lineEndy=y1;

while(1)
{
/*从键盘获取键值，开始操作（移动、放大、缩小、旋转）直线*/
key=bioskey(0);
/*ESC键，退出操作*/
if(key==ESC)
break;

/*旋转*/
if(key==SPACE)
{
/*计算旋转中心*/
/*如果直线示倾斜的*/
if((lineStarty!=lineEndy)&& (lineStartx!=lineEndx))
{
Centx=(lineEndx-lineStartx)/2+lineStartx;
Centy=(lineEndy-lineStarty)/2+lineStarty;
}

/*如果直线是竖直的*/
if(lineStarty==lineEndy)
{
Centx=(lineEndx-lineStartx)/2+lineStartx;
Centy=lineStarty;
}

/*如果直线是水平的*/
if(lineStartx==lineEndx)
{
Centx=lineStartx;
Centy=(lineEndy-lineStarty)/2+lineStarty;
}

temStartx=lineStartx;
temStarty=lineStarty;
temEndx=lineEndx;
temEndy=lineEndy;

/*旋转不能超过边界*/
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
/*清除原有的直线*/
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);

/*计算旋转30度后的起点坐标*/
lineStartx=(temStartx-Centx)*cos(pi/6)-(temStarty-Centy)*sin(pi/6)+Centx;
lineEndx=(temEndx-Centx)*cos(pi/6)-(temEndy-Centy)*sin(pi/6)+Centx;

/*计算旋转30度后的终点坐标*/
lineStarty=(temStartx-Centx)*sin(pi/6)+(temStarty-Centy)*cos(pi/6)+Centy;
lineEndy=(temEndx-Centx)*sin(pi/6)+(temEndy-Centy)*cos(pi/6)+Centy;

temStartx=lineStartx;
temStarty=lineStarty;
temEndx=lineEndx;
temEndy=lineEndy;

/*绘制旋转后的直线*/
line(lineStartx,lineStarty,lineEndx,lineEndy);
}
}
/*左移直线*/
if(key==LEFT)
{
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);
/*起始的横坐标减小*/
lineStartx-=5;
lineEndx-=5;
line(lineStartx,lineStarty,lineEndx,lineEndy);
}
}

/*右移直线*/
if(key==RIGHT)
{
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);
/*起始的横坐标增加*/
lineStartx+=5;
lineEndx+=5;
line(lineStartx,lineStarty,lineEndx,lineEndy);
}
}

/*下移直线*/
if(key==DOWN)
{
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);
/*起始的纵坐标增加*/
lineStarty+=5;
lineEndy+=5;
line(lineStartx,lineStarty,lineEndx,lineEndy);
}
}

/*上移直线*/
if(key==UP)
{
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);
/*起始的纵坐标减小*/
lineStarty-=5;
lineEndy-=5;
line(lineStartx,lineStarty,lineEndx,lineEndy);
}
}
/*放大直线*/
if(key==PAGEUP)
{
if(lineStartx>=10 && lineStarty>=40 && lineEndx <=620 && lineEndy <=445)
{
setwritemode(XOR_PUT);
line(lineStartx,lineStarty,lineEndx,lineEndy);