//?Image_ScrollBar.cpp?:?Defines?the?entry?point?for?the?console?application.??
//??
#include???
#include???

#include???
#include???
#include

using?namespace?std;


double?mx?=?0?my?=?0;
int?dx?=?0?dy?=?0?horizBar_x?=?0?vertiBar_y?=?0;
bool?clickVertiBar?=?false?clickHorizBar?=?false?needScroll?=?false;
CvRect?rect_bar_horiz?rect_bar_verti;

void?help（）
{
	printf（
		“/n“
		“This?program?demonstrated?the?use?of?the?cvSetMouseCallback?/n“
		“for?viewing?large?image?with?scroll?bar?in?a?small?window/n“
		“created?by?OpenCV?highgui?model.?（chenyusiyuan?2011-06-24）/n“
		“Call:/n“
		“./Image_ScrollBar?[??]/n/n“
	）;
}


void?mouse_callback（int?event?int?x?int?y?int?flags?void*?param）
{
	if?（needScroll）
	{
		switch?（event）
		{
		case?CV_EVENT_LBUTTONDOWN:
			mx?=?x?my?=?y;
			dx?=?0?dy?=?0;
			//?按下左鍵時(shí)光標(biāo)定位在水平滾動(dòng)條區(qū)域內(nèi)??
			if?（x?>=?rect_bar_horiz.x?&&?x?<=?rect_bar_horiz.x?+?rect_bar_horiz.width
				&&?y?>=?rect_bar_horiz.y?&&?y?<=?rect_bar_horiz.y?+?rect_bar_horiz.height）
			{
				clickHorizBar?=?true;
			}
			//?按下左鍵時(shí)光標(biāo)定位在垂直滾動(dòng)條區(qū)域內(nèi)??
			if?（x?>=?rect_bar_verti.x?&&?x?<=?rect_bar_verti.x?+?rect_bar_verti.width
				&&?y?>=?rect_bar_verti.y?&&?y?<=?rect_bar_verti.y?+?rect_bar_verti.height）
			{
				clickVertiBar?=?true;
			}
			break;
		case?CV_EVENT_MOUSEMOVE:
			if?（clickHorizBar）
			{
				dx?=?fabs（x?-?mx）?>?1???（int）（x?-?mx）?:?0;
				dy?=?0;
			}
			if?（clickVertiBar）
			{
				dx?=?0;
				dy?=?fabs（y?-?my）?>?1???（int）（y?-?my）?:?0;
			}
			mx?=?x?my?=?y;
			break;
		case?CV_EVENT_LBUTTONUP:
			mx?=?x?my?=?y;
			dx?=?0?dy?=?0;
			clickHorizBar?=?false;
			clickVertiBar?=?false;
			break;
		default:
			dx?=?0?dy?=?0;
			break;
		}
	}
}

void?myShowImageScroll（char*?title?IplImage*?src_img
	int?winWidth?=?1000?int?winHeight?=?700）?//?顯示窗口大小默認(rèn)為?1400×700??
{
	HWND?hWnd?=?（HWND）cvGetWindowHandle（title）;
	if?（hWnd?==?NULL）
		return;
	
	RECT?rect;
	GetWindowRect（hWnd?&rect）;
	int?cw1?=?GetSystemMetrics（SM_CXFULLSCREEN）;	//屏幕大小（不包括任務(wù)欄等區(qū)域）
	int?ch1?=?GetSystemMetrics（SM_CYFULLSCREEN）;
	int?cw2?=?GetSystemMetrics（SM_CXSCREEN）;		//真正屏幕的大小
	int?ch2?=?GetSystemMetrics（SM_CYSCREEN）;

	int?dw?=?10;
	int?cw?=?cw1?-?2?*?dw;
	int?ch?=?ch1?-?2?*?dw;
	int?ww?=?rect.right?-?rect.left?+?1;
	int?wh?=?rect.bottom?-?rect.top?+?1;
	if?（ww?>?cw1）?ww?=?cw1;
	if?（wh?>?ch1）wh?=?ch1;

	winWidth?=?ww;
	winHeight?=?wh;

	IplImage*?dst_img;
	CvRect??rect_dst???//?窗口中有效的圖像顯示區(qū)域??
		rect_src;		//?窗口圖像對(duì)應(yīng)于源圖像中的區(qū)域??
	int?imgWidth?=?src_img->width
		imgHeight?=?src_img->height
		barWidth?=?21;??//?滾動(dòng)條的寬度（像素）??
	double??scale_w?=?（double）imgWidth?/?（double）winWidth???//?源圖像與窗口的寬度比值??用以判斷是否超出顯示范圍
		scale_h?=?（double）imgHeight?/?（double）winHeight;?????//?源圖像與窗口的高度比值??用以判斷是否超出顯示范圍

	if?（scale_w<1）

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-01-06?07:04??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\
?????目錄???????????0??2020-01-06?07:02??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\
?????目錄???????????0??2018-12-11?19:31??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\.vs\
?????目錄???????????0??2018-12-11?19:31??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\.vs\test\
?????目錄???????????0??2018-12-11?19:31??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\.vs\test\v14\
?????文件???????29184??2020-01-03?06:22??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\.vs\test\v14\.suo
?????目錄???????????0??2018-12-19?17:47??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\Debug\
?????目錄???????????0??2018-12-20?19:19??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\
?????文件????????6675??2018-12-20?19:19??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\main.cpp
?????文件??????298414??2018-12-06?05:43??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\t12.jpg
?????文件????????7374??2018-12-11?19:33??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\test.vcxproj
?????文件?????????945??2018-12-11?19:33??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\test.vcxproj.filters
?????目錄???????????0??2018-12-11?19:33??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\
?????目錄???????????0??2018-12-20?19:19??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\
?????文件??????105633??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\main.obj
?????文件??????105360??2018-12-20?17:45??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\main.obj.enc
?????文件?????????239??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.log
?????目錄???????????0??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\
?????文件?????????570??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\CL.command.1.tlog
?????文件???????39506??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\CL.read.1.tlog
?????文件?????????396??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\CL.write.1.tlog
?????文件????????1164??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\link.command.1.tlog
?????文件????????3612??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\link.read.1.tlog
?????文件?????????382??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\link.write.1.tlog
?????文件?????????210??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\test.tlog\test.lastbuildstate
?????文件?????1051648??2020-01-03?06:11??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\vc140.idb
?????文件??????929792??2018-12-20?19:19??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test\x64\Debug\vc140.pdb
?????文件????????1294??2018-12-11?19:31??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test.sln
?????文件????33685504??2020-01-03?06:22??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test.VC.db
?????文件??????????58??2020-01-06?07:02??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\test.VC.VC.opendb
?????目錄???????????0??2018-12-11?19:33??OpenCV練習(xí)12-用滾動(dòng)條移動(dòng)圖片\test\x64\
............此處省略5個(gè)文件信息