CHSLine.cpp

#include "CHSLine.h"

#ifndef _CHSLine_CPP_
#define _CHSLine_CPP_


//コンストラクタ
CHSLine::CHSLine(void){
	this->hdc = 0;
	this->SetColor(0);
	this->SetPosition(0,0);
}

CHSLine::CHSLine(HDC hdc){
	this->hdc = hdc;
	this->SetColor(0);
	this->SetPosition(0,0);
}

//デバイスコンテキスト設定
HDC CHSLine::SetDC(HDC hdc){
	HDC old_hdc = this->hdc;
	this->hdc = hdc;
	return old_hdc;
}

//現在選択されているデバイスコンテキストを取得
HDC CHSLine::GetDC(void){
	return this->hdc;
}

void  CHSLine::SetColor(int r , int g , int b){
	this->SetColor(RGB(r,g,b));

}
void  CHSLine::SetColor(COLORREF rgb){
	this->color[0] = rgb & 0x0000FF;
	this->color[1] = (rgb & 0x00FF00) >> 8;
	this->color[2] = (rgb & 0xFF0000) >> 16;
}
COLORREF  CHSLine::GetColor(void){
	return RGB(this->color[0],this->color[1],this->color[2]);
}
void  CHSLine::SetPosition(int x,int y){
	this->pos.x = x;
	this->pos.y = y;
}
void  CHSLine::SetPosition(POINT pos){
	this->pos = pos;
}

POINT CHSLine::GetPosition(void){
	return this->pos;
}

void CHSLine::DrawEx(int start_x ,int start_y,int end_x , int end_y , BOOL SetPosFromEndPos){
	int upper[2] = { 1,1 } , delta[2] = { 0 , 0};
	int xyflag = 0 , namera=0;
	delta[0] =  end_x - start_x;
	delta[1] =  end_y - start_y;
	int xy[2] ={ start_x , start_y};
	for(int i = 0 ; i < 2 ; i ++){
		if(delta[i] < 0){
			upper[i] = -1;
			delta[i] *= -1;
		}
	}

	if( delta[0] <= delta[1]) xyflag = 1;

	for(int idx = 0 ; idx < (delta[xyflag] + 1) ; idx++){
		SetPixel(this->hdc , xy[0],xy[1],RGB(this->color[0] * 255 , this->color[1] * 255 , this->color[2] * 255 ));
		xy[xyflag]+=upper[xyflag];
		namera += delta[!xyflag];
		if(namera >= delta[xyflag]){
			namera -= delta[xyflag];
			xy[!xyflag]+=upper[!xyflag];
		}
	}

	if(SetPosFromEndPos) this->SetPosition(end_x , end_y);
}

void CHSLine::DrawEx(POINT start,POINT end_pos,BOOL SetPosFromEndPos ){
	this->DrawEx(start.x,start.y,end_pos.x,end_pos.y,SetPosFromEndPos);
}

void CHSLine::Draw(int end_x , int end_y , BOOL SetPosFromEndPos){
	POINT end_xy = { end_x ,  end_y };
	this->Draw(end_xy,SetPosFromEndPos);
}
void CHSLine::Draw(POINT end_pos , BOOL SetPosFromEndPos){
	this->DrawEx(this->pos,end_pos,SetPosFromEndPos);
}
BOOL CHSLine::DrawMultiPoint(LPPOINT points,int num,BOOL SetPosFromEndPos){
	return this->DrawMultiPointEx(points,num,FALSE,SetPosFromEndPos);
}
BOOL CHSLine::DrawMultiPointEx(LPPOINT points,int num,BOOL StartOfCurrentPos,BOOL SetPosFromEndPos){
	POINT old_point;
	if(!points)return FALSE;
	if(!((num>=2 && StartOfCurrentPos == FALSE)||(num>=1 && StartOfCurrentPos)))return FALSE;
	
	old_point = this->GetPosition();
	
	if(!StartOfCurrentPos){
		this->SetPosition(*points);
		points++;
		num--;
	}

	for(int i= 0 ; i < num ; i++){
		this->Draw(*points);
		points++;
	}

	if(!SetPosFromEndPos)this->SetPosition(old_point);
	return TRUE;
}


#endif

CHSLine.h

#include <Windows.h>

#ifndef _CHSLine_H_
#define _CHSLine_H_


enum CHSLine_ColorRGBFlag{
	CHSLC_USECOLORREF,
	CHSLC_8BIT_RGB,
	CHSLC_64BIT_FLOATRGB
};

typedef struct tagCHSLine_Color{
	CHSLine_ColorRGBFlag rgbflag;
	union{
		COLORREF rgb;
		struct{
			unsigned __int8 R;
			unsigned __int8 G;
			unsigned __int8 B;
			operator int(void){

				return R | G << 8 | B << 16;

			}
		}_8bitRGB;
		struct{
			double R;
			double G;
			double B;
		}_64bitfloatRGB;

	};

	struct{
		double H;
		double S;
		double V;
	}HSV;

}CHSLine_Color,*PCHSLine_Color,*LPCHSLine_Color;


class CHSLine{


private:	//プライベート・変数

	HDC hdc;	//デバイスコンテキストハンドル
	POINT pos;	//現在の位置
	double color[3]; //線の色(RGB、ただし0.0～1.0)


private:	//プライベート関数
	void ConvertRGBtoHSV(LPCHSLine_Color color);
	void ConvertHSVtoRGB(LPCHSLine_Color color);




public:		//パブリック関数

	//コンストラクタ
	CHSLine(void);
	CHSLine(HDC hdc);

	//デバイスコンテキスト設定
	HDC SetDC(HDC hdc);

	//現在選択されているデバイスコンテキストを取得
	HDC GetDC(void);


	//位置設定
	void SetPosition(int x,int y);
	void SetPosition(POINT pos);
	
	//現在の位置取得
	POINT GetPosition(void);

	//描画(座標指定系)
	void Draw(int end_x , int end_y , BOOL SetPosFromEndPos = TRUE);
	void Draw(POINT end_pos , BOOL SetPosFromEndPos = TRUE);
	void DrawEx(int start_x ,int start_y,int end_x , int end_y , BOOL SetPosFromEndPos = TRUE);
	void DrawEx(POINT start,POINT end_pos,BOOL SetPosFromEndPos = TRUE);
	BOOL DrawMultiPoint(LPPOINT points,int num,BOOL SetPosFromEndPos = TRUE);
	BOOL DrawMultiPointEx(LPPOINT points,int num,BOOL StartOfCurrentPos = TRUE,BOOL SetPosFromEndPos = TRUE);

	/*
		//描画(サイズ指定系)
		BOOL DrawSize(int size_x , int size_y , BOOL SetPosFromEndPos = TRUE);
		BOOL DrawSize(SIZE size , BOOL SetPosFromEndPos = TRUE);
		BOOL DrawExSize(int start_x,int start_y,int size_x,int size_y,BOOL SetPosFromEndPos = TRUE);
		BOOL DrawExSize(POINT start,SIZE size ,BOOL SetPosFromEndPos = TRUE);
	*/

	//色設定
	void SetColor(int r , int g , int b);
	void SetColor(COLORREF rgb);
	void SetColorHSV(double h , double s , double v);

	//色設定取得
	COLORREF GetColor(void);
	COLORREF GetColorHSV(double *ph , double *ps , double *pv);


};


#endif