图形绘制
//
// main.c
// DrawShape
//
// Created by qingyun on 14-10-6.
// Copyright (c) 2014年 hnqingyun. All rights reserved.
//
#include <stdio.h>
#define SHAPENUM 3
// 定义了图形的类型
typedef enum {
kCircle,
kRectangle,
kTriangle
} ShapeType;
// 定义了图形的颜色
typedef enum {
kRedColor,
kGreenColor,
kBlueColor
} ShapeColor;
// 定义了图形的屏幕区域
typedef struct {
int x;
int y;
int width;
int height;
} ShapeRect;
// 定义图形
typedef struct {
ShapeType type;
ShapeColor color;
ShapeRect bounds;
} Shape;
void drawCircle(ShapeRect rect, ShapeColor color);
void drawRectangle(ShapeRect rect, ShapeColor color);
void drawTriangle(ShapeRect rect, ShapeColor color);
void drawShapes(Shape *shapes, int number);
int main(int argc, const char * argv[])
{
// 定义一个图形数组
Shape shapes[SHAPENUM] = {0};
// circle
ShapeRect circleRect = {20, 30, 50, 50};
shapes[0].bounds = circleRect;
shapes[0].color = kRedColor;
shapes[0].type = kCircle;
// rectangle
ShapeRect rectangleRect = {44, 54, 50, 100};
shapes[1].bounds = rectangleRect;
shapes[1].color = kGreenColor;
shapes[1].type = kRectangle;
// triangle
ShapeRect triangleRect = {90, 90, 77, 66};
shapes[2].bounds = triangleRect;
shapes[2].color = kBlueColor;
shapes[2].type = kTriangle;
drawShapes(shapes, SHAPENUM);
return 0;
}
void drawShapes(Shape *shapes, int number)
{
for (int i = 0; i < number; i++) {
// 绘制每个图形
switch (shapes[i].type) {
case kCircle:
drawCircle(shapes[i].bounds, shapes[i].color);
break;
case kRectangle:
drawRectangle(shapes[i].bounds, shapes[i].color);
break;
case kTriangle:
drawTriangle(shapes[i].bounds, shapes[i].color);
break;
default:
break;
}
}
}
static char *colorName(ShapeColor color)
{
char *colorStr = NULL;
switch (color) {
case kRedColor:
colorStr = "Red";
break;
case kGreenColor:
colorStr = "Green";
break;
case kBlueColor:
colorStr = "Blue";
break;
default:
break;
}
return colorStr;
}
void drawCircle(ShapeRect rect, ShapeColor color)
{
printf("Draw Circle at (%d,%d,%d,%d), fill color is %s\n", rect.x, rect.y, rect.width, rect.height, colorName(color));
}
void drawRectangle(ShapeRect rect, ShapeColor color)
{
printf("Draw Rectangle at (%d,%d,%d,%d), fill color is %s\n", rect.x, rect.y, rect.width, rect.height, colorName(color));
}
void drawTriangle(ShapeRect rect, ShapeColor color)
{
printf("Draw Triangle at (%d,%d,%d,%d), fill color is %s\n", rect.x, rect.y, rect.width, rect.height, colorName(color));
}