본문 바로가기
kxLibrary

KFC1.0 Class Update For KFCScrollBar

by 두루물 2011. 5. 5.
KRKIM's Foundation Classes Library(KFC)
Bugfix::
-대용량 사이즈(Large size) scroll supported.
-Drawing fixed.

 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108

RECT KFCScrollBar::GetRect(UINT nSBCode)
{
	SCROLLINFO si = m_si;

	int h = GetHeight();

	if(si.nPage > (UINT) si.nMax)
		si.nPage = si.nMax;

	if(si.nTrackPos==-1) 
		si.nTrackPos = si.nPos;

	//exception overflow Pos
	if(si.nTrackPos + si.nPage > si.nMax){//당 윈도우가 리사이징 되면서 문서편집기의 autowrap등의 여건등에 의해,
		//스크롤 크기가 변하는데 nPos는 그대로이고 nMax만 오히려 줄어든 경우에 해당한다.
		si.nTrackPos = max(0,si.nMax - si.nPage);
	}

	int nHeight = max(0,h - 2 * m_nBmpUnit);//Free Height
	int range = max(1,(si.nMax - si.nMin));
	int	nThumbHeight = si.nPage * nHeight / range;//nHeight : nThumbHeight = Range:nPage

	if(nThumbHeight<THUMB_MINSIZE) 
		nThumbHeight=THUMB_MINSIZE;
	if(nHeight<THUMB_MINSIZE) 
		nThumbHeight=0;
	if((si.nMax-si.nMin-si.nPage+1)==0) 
		nThumbHeight = 0;
	if(si.nMax == 0)
		nThumbHeight = nHeight;
	if(!IsWindowEnabled(m_hWnd))
		nThumbHeight = 0;
	int nEmptyHei = nHeight - nThumbHeight;
	int nArrowHei = (nHeight <= 0) ? (h / 2) : m_nBmpUnit;

	RECT rcItem = {0,0,m_nBmpUnit,nArrowHei};
	RECT rcThumb;
	switch(nSBCode){
		case SB_LINEUP:
			if(!IsVertical()){
				RECT rcItem2;
				SetRect(&rcItem2,rcItem.top,rcItem.left,rcItem.bottom,rcItem.right);
				return rcItem2;
			}
			return rcItem;
		case SB_LINEDOWN:
			rcItem.top = h - nArrowHei;
			rcItem.bottom = h;
			if(!IsVertical()){
				RECT rcItem2;
				SetRect(&rcItem2,rcItem.top,rcItem.left,rcItem.bottom,rcItem.right);
				return rcItem2;
			}
			return rcItem;
		case SB_PAGEUP:
		case SB_THUMBTRACK:
		case SB_PAGEDOWN:
			rcItem.top = rcItem.bottom;
			if(nThumbHeight <= 0)
				rcItem.bottom += nEmptyHei / 2;
			//else{
			//	int r = max(1,si.nMax-si.nMin-si.nPage);//트랙포스의 정상적인 최대위치임
			//	rcItem.bottom += nEmptyHei * si.nTrackPos / r; //트랙포스 영역(r) : 현재위치 = 공백부분 : 오프셋
			//}
			else{
				int r = max(1,si.nMax-si.nMin-si.nPage);//트랙포스의 정상적인 최대위치임
				UINT64 vv = (UINT64)nEmptyHei * (UINT64)si.nTrackPos;
				rcItem.bottom +=  (int)(vv / r); //트랙포스 영역(r) : 트랙포스 현재위치 = 스크롤바 그래픽영역 공백부분 : 스크롤 썸트랙 오프셋
				//r:T = E: ?
				// ? = (T*E)/r
			}
			rcThumb = rcItem;
			//Thumb rect
			rcThumb.top = rcThumb.bottom;   
			rcThumb.bottom += nThumbHeight;
			if(rcThumb.bottom > h - nArrowHei){
				rcThumb.bottom = h - nArrowHei;
				rcThumb.top = rcThumb.bottom - THUMB_MINSIZE;
			}
			if(m_bAutoHideThumb && nEmptyHei <= 0)
				rcThumb.bottom = rcThumb.top;//make Empty rect for non-drawing.

			if(nSBCode == SB_THUMBTRACK)
				rcItem = rcThumb;
			else if(nSBCode == SB_PAGEUP){
				if(rcItem.bottom > rcThumb.top){//check valid area prevent overlapped drawing
			//		rcItem.bottom -= rcItem.bottom - rcThumb.top;//prevent 0,no direct set, so sub diff
				}
			}
			if(nSBCode == SB_PAGEDOWN){
				rcItem.top = rcItem.bottom + nThumbHeight;
				if(m_bAutoHideThumb && nEmptyHei <= 0)
					rcItem.top = rcItem.bottom;//make Empty rect for non-drawing.
				rcItem.bottom = h - nArrowHei;
				if(rcItem.top < rcThumb.bottom){//check valid area prevent overlapped drawing
			//		rcItem.top += rcThumb.bottom - rcItem.top;//prevent 0, no direct set,so add diff
				}

			}
			if(IsVertical())
				return rcItem;
			RECT rcItem2;
			SetRect(&rcItem2,rcItem.top,rcItem.left,rcItem.bottom,rcItem.right);
			return rcItem2;
			break;
	}
	return rcItem;

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133

BOOL KFCScrollBar::OnMouseMove(UINT nFlags,POINT point)
{
	if(!m_bTrace && nFlags != 0xFFFF)
	{
		m_bTrace=TRUE;
		TRACKMOUSEEVENT tme;
		tme.cbSize = sizeof(tme);
		tme.hwndTrack = m_hWnd;
		tme.dwFlags = TME_LEAVE;
		tme.dwHoverTime = 1;
		m_bTrace = _TrackMouseEvent(&tme);
	}

	if(m_bTracking)
	{
		int nInterHei=m_nHeight-2*m_nBmpUnit;
		int	nSlideHei=m_si.nPage*nInterHei/(m_si.nMax-m_si.nMin+1);
		if(nSlideHei<THUMB_MINSIZE) nSlideHei=THUMB_MINSIZE;
		if(nInterHei<THUMB_MINSIZE) nSlideHei=0;
		int nEmptyHei=nInterHei-nSlideHei;
		int nDragLen=IsVertical()?point.y-m_ptTrackingStart.y:point.x-m_ptTrackingStart.x;
		//int nSlide=(nEmptyHei==0)?0:(nDragLen*(int)(m_si.nMax-m_si.nMin-m_si.nPage+1)/nEmptyHei);
		int nSlide=0;
		if(nEmptyHei > 0){
			UINT64 offpos = (UINT64)nDragLen*((UINT64)(m_si.nMax-m_si.nMin-m_si.nPage+1)/(UINT64)nEmptyHei);
			nSlide = (int)offpos;
		}

		int nNewTrackPos = m_nTrackingPos + nSlide;
		if(nNewTrackPos<m_si.nMin)
		{
			nNewTrackPos=m_si.nMin;
		}else if(nNewTrackPos>(int)(m_si.nMax-m_si.nMin-m_si.nPage+1))
		{
			nNewTrackPos=m_si.nMax-m_si.nMin-m_si.nPage+1;
		}
		if(nNewTrackPos!=m_si.nTrackPos)
		{
			m_nThumbState = 2;
			HDC hDC=GetDC(m_hWnd);
			RECT rcThumb1=GetRect(SB_THUMBTRACK);
			m_si.nTrackPos=nNewTrackPos;
			RECT rcThumb2=GetRect(SB_THUMBTRACK);

			RECT rcSourSlide=GetImageRect(SB_PAGEUP,0);
			RECT rcSourThumb=GetImageRect(SB_THUMBTRACK,m_nThumbState);
			RECT rcOld;
			if(IsVertical())
			{
				rcOld.left=0,rcOld.right=m_nBmpUnit;
				if(rcThumb2.bottom>rcThumb1.bottom)
				{
					rcOld.top=rcThumb1.top;
					rcOld.bottom=rcThumb2.top;
				}else
				{
					rcOld.top=rcThumb2.bottom;
					rcOld.bottom=rcThumb1.bottom;
				}
			}else
			{
				rcOld.top=0,rcOld.bottom=m_nBmpUnit;
				if(rcThumb2.right>rcThumb1.right)
				{
					rcOld.left=rcThumb1.left;
					rcOld.right=rcThumb2.left;
				}else
				{
					rcOld.left=rcThumb2.right;
					rcOld.right=rcThumb1.right;
				}
			}

			DrawSlider(hDC,rcOld,rcSourSlide);
			DrawThumb(hDC,&rcThumb2,&rcSourThumb);
			ReleaseDC(m_hWnd,hDC);
			if(nFlags & MK_LBUTTON){
				//TRACE("m_si.nTrackPos = %d\n",m_si.nTrackPos);
				//CWnd *parent = GetParent();
				//WM_VSCROLL THUMBTRACK AND THUMBPOSITION only 16bit
				//To EXPAND 32bit
				//KFCScrollBarPanel * pwnd = (KFCScrollBarPanel *)parent;
				SendMessage(::GetParent(m_hWnd),IsVertical()?WM_VSCROLL:WM_HSCROLL,MAKELONG(SB_THUMBTRACK,m_si.nTrackPos),(LPARAM)m_hWnd);
				//if(IsVertical())
				//	pCtrl->SetScrollPos(SB_VERT,m_si.nTrackPos);
				//else//2009.05.19
				//	pCtrl->SetScrollPos(SB_HORZ,m_si.nTrackPos);
			}
		}
	}else if(m_htLeftButton!=-1)
	{
		RECT rc = GetRect(m_htLeftButton);
		m_bPause = !::PtInRect(&rc,point);
		if(m_htLeftButton==SB_LINEUP||m_htLeftButton==SB_LINEDOWN)
		{
			DrawArrow(m_htLeftButton,m_bPause ? 0 : 2);
		}
	}else
	{
		int uHit=HitTest(point);
		if(uHit!=m_htPrevLeftButton)
		{
			if(m_htPrevLeftButton!=-1)
			{
				if(m_htPrevLeftButton==SB_THUMBTRACK)
				{
					m_nThumbState = 0;
					HDC hDC = GetDC(m_hWnd);
					DrawThumbBar(m_nThumbState,hDC);
					ReleaseDC(m_hWnd,hDC);
				}else if(m_htPrevLeftButton==SB_LINEUP||m_htPrevLeftButton==SB_LINEDOWN)
				{
					DrawArrow(m_htPrevLeftButton,0);
				}
			}
			if(uHit!=-1)
			{
				if(uHit==SB_THUMBTRACK)
				{
					m_nThumbState = 1;
					HDC hDC = GetDC(m_hWnd);
					DrawThumbBar(m_nThumbState,hDC);
					ReleaseDC(m_hWnd,hDC);
				}else if(uHit==SB_LINEUP||uHit==SB_LINEDOWN)
				{
					DrawArrow(uHit,1);
				}
			}
			m_htPrevLeftButton=uHit;
		}
	}
	return 1;
}

Download New Updated Class(Full Source Code):

KFCSBar.cpp

KFCSBar.h

저작자표시

'kxLibrary' 카테고리의 다른 글

KFCApp Class Updated  (0) 2012.04.11
kxBuffLib::kxFile Class Source Code  (0) 2011.10.06
KFC1.0 Class Update For KFCBitmap  (0) 2011.05.05
KFC1.0 Class Update For Thread Safe ResourceHandle  (0) 2010.12.18
KxLibrary로 DLL 만들기  (0) 2010.11.19

관련글

티스토리툴바