winnc.c

lgui_0.3.0.rar

		if(iSliderBarWidth<MIN_SLIDERBAR_LENGTH)
			iSliderBarWidth=MIN_SLIDERBAR_LENGTH;
	}
	pCurState->iSliderBarLen = iSliderBarWidth;

	iPos = (pScrollInfo->nPos - pScrollInfo->nMin) * iTotalBarWidth/(pScrollInfo->nMax - pScrollInfo->nMin + 1);
	if(iPos < 0)
		iPos = 0;
	if((rcTotalBar.right - iPos)< iSliderBarWidth)
		iPos=rcTotalBar.right - iSliderBarWidth;
	pCurState->iSliderBarVal = iPos;

}


//enable  scrollbar of a window
BOOL GUIAPI 
EnableScrollBar (
	HWND hWnd, 
	int iSBar, 
	BOOL bEnable
)
{
    LPSCROLLINFO pSBar;
    PWindowsTree pWin;
    RECT rcBar;

    pWin = (PWindowsTree)hWnd;


    if (iSBar == SB_HORZ) {
        if (pWin->dwStyle & WS_HSCROLL)
            pSBar=pWin->pHScroll;
		else
			return false;
    }
    else if (iSBar == SB_VERT) {
        if (pWin->dwStyle & WS_VSCROLL)
            pSBar=pWin->pVScroll;
		else
			return false;
    }

	if(bEnable){
		if(pSBar->dwStatus & SS_DISABLED)
			pSBar->dwStatus &= ~SS_DISABLED;
	}
	else{
		if(!(pSBar->dwStatus & SS_DISABLED))
			pSBar->dwStatus |=SS_DISABLED;
	}
    if (iSBar == SB_VERT)
        wndGetVScrollBarRect (pWin, &rcBar);
    else
        wndGetHScrollBarRect (pWin, &rcBar);

	InvalidateRect(hWnd,&rcBar,true);

    return TRUE;
}


int GUIAPI 
SetScrollInfo(
	HWND hWnd, 
	int fnBar, 
	LPSCROLLINFO lpsi, 
	BOOL fRedraw
)
{
	PWindowsTree pWin;
	LPSCROLLINFO pScrollInfo;
	RECT rc;

	pWin=(PWindowsTree)hWnd;
	if(!pWin)
		return false;

	if(fnBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL)
			pScrollInfo = pWin->pVScroll;
		else
			pScrollInfo = pWin->pHScroll;
	}
	else{
		if(fnBar == SB_VERT){
			pScrollInfo = pWin->pVScroll;
		}
		else{
			pScrollInfo = pWin->pHScroll;
		}
	}

	if(lpsi->fMask & SIF_RANGE){
		pScrollInfo->nMin=lpsi->nMin;
		pScrollInfo->nMax=lpsi->nMax;
	}

	if(lpsi->fMask & SIF_PAGE){
		pScrollInfo->nPage=lpsi->nPage;
	}
	if(lpsi->fMask & SIF_POS){
		if(lpsi->nPos < pScrollInfo->nMin)
			pScrollInfo->nPos=pScrollInfo->nMin;
		else if(lpsi->nPos > (pScrollInfo->nMax - pScrollInfo->nPage))
			pScrollInfo->nPos=pScrollInfo->nMax - pScrollInfo->nPage;
		else
			pScrollInfo->nPos=lpsi->nPos;
		pScrollInfo->nTrackPos=lpsi->nPos;
	}


	if(fnBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
			pScrollInfo = pWin->pHScroll;
	}
	else{
		if(fnBar == SB_VERT){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
	}


	if(fRedraw)
		scrInvalidateRect(hWnd,NULL,true);

	return true;
}
int GUIAPI 
GetScrollInfo(
	HWND hWnd, 
	LPSCROLLINFO lpsi
)
{
	PWindowsTree pWin;
	pWin = (PWindowsTree)hWnd;
	if(IsVScrollBar(hWnd))
		lpsi = pWin->pVScroll;
	else
		lpsi = pWin->pHScroll;
}



int GUIAPI 
SetScrollPos(
	HWND hWnd,
	int nBar,
	int nPos,
	BOOL bRedraw
)
{
	PWindowsTree pWin;
	LPSCROLLINFO pScrollInfo;

	RECT rc;
	pWin=(PWindowsTree)hWnd;
	if(!pWin)
		return false;

	if(nBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL)
			pScrollInfo = pWin->pVScroll;
		else
			pScrollInfo = pWin->pHScroll;
	}
	else{
		if(nBar == SB_VERT){
			if(!(pWin->dwStyle & WS_VSCROLL))
				return false;
			else
				pScrollInfo = pWin->pVScroll;
		}
		else{
			if(!(pWin->dwStyle & WS_HSCROLL))
				return false;
			else
				pScrollInfo = pWin->pHScroll;
		}
	}
	if(nPos < pScrollInfo->nMin)
		pScrollInfo->nPos = pScrollInfo->nMin;
	else if(nPos > (pScrollInfo->nMax - pScrollInfo->nPage))
		pScrollInfo->nPos =pScrollInfo->nMax - pScrollInfo->nPage;
	else
		pScrollInfo->nPos=nPos;

	if(nBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
	}
	else{
		if(nBar == SB_VERT){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
	}
	
	if(bRedraw)
		scrInvalidateRect(hWnd,NULL,true);
	return true;
}

BOOL GUIAPI 
SetScrollRange(
	HWND hWnd,
	int nBar,
	int nMinPos,
	int nMaxPos,
	BOOL bRedraw
)
{
	PWindowsTree pWin;
	LPSCROLLINFO pScrollInfo;
	RECT rc;

	pWin=(PWindowsTree)hWnd;
	if(nBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL)
			pScrollInfo = pWin->pVScroll;
		else
			pScrollInfo = pWin->pHScroll;
	}
	else{
		if(nBar == SB_VERT){
			if(!(pWin->dwStyle & WS_VSCROLL))
				return false;
			else
				pScrollInfo = pWin->pVScroll;
		}
		else{
			if(!(pWin->dwStyle & WS_HSCROLL))
				return false;
			else
				pScrollInfo = pWin->pHScroll;
		}
	}

	pScrollInfo->nMin=nMinPos;
	pScrollInfo->nMax=nMaxPos;


	if(nBar == SB_CTL){
		if(pWin->dwStyle & WS_VSCROLL){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
	}
	else{
		if(nBar == SB_VERT){
			wndGetVScrollBarRect(hWnd,&rc);
			CalVScrollCurState(&rc,pScrollInfo,pWin->pVCurState);
		}
		else{
			wndGetHScrollBarRect(hWnd,&rc);
			CalHScrollCurState(&rc,pScrollInfo,pWin->pHCurState);
		}
	}

	if(bRedraw)
		scrInvalidateRect(hWnd,NULL,true);
	return true;
}




BOOL 
IsVScrollBar(
	HWND hWnd
)
{
	PWindowsTree pWin;
	pWin=(PWindowsTree)hWnd;
	if(pWin->dwStyle & WS_VSCROLL)
		return true;
	else
		return false;
}


BOOL 
IsHScrollBar(
	HWND hWnd
)
{
	PWindowsTree pWin;
	pWin=(PWindowsTree)hWnd;
	if(pWin->dwStyle & WS_HSCROLL)
		return true;
	else
		return false;
}




static BOOL 
ScrollBarIsEnable(
	LPSCROLLINFO lpsi
)
{
	if(lpsi->dwStatus & SS_DISABLED)
		return false;
	else
		return true;

}



static LPSCROLLINFO 
wndGetScrollBar (
	HWND hWnd, 
	int iSBar
)
{
	PWindowsTree pWin;
    pWin = (PWindowsTree)hWnd;

    if (iSBar == SB_HORZ) {
        if (pWin->dwStyle & WS_HSCROLL)
			return pWin->pHScroll;
    }
    else if (iSBar == SB_VERT) {
        if (pWin->dwStyle & WS_VSCROLL)
			return pWin->pVScroll;
    }
    return NULL;
}


//get ok button rect screen coordsys 
void 
wndGetOkButtonRect(
	HWND hWnd,
	LPRECT lpRect
)
{
	int iOkButtonWidth,iCloseBoxWidth;
	RECT rcCaption;
	wndGetCaptionRect(hWnd,&rcCaption);
	if(!IsOkButton(hWnd)){
		SetRect(lpRect,0,0,0,0);
		return;
	}
	iOkButtonWidth = WIN_OKBUTTON_WIDTH;
	if(IsCloseBox(hWnd)){
		iCloseBoxWidth = WIN_CLOSEBOX_WIDTH;
	}
	else{
		iCloseBoxWidth = 0;
	}
	
	SetRect(lpRect,rcCaption.right - iOkButtonWidth - iCloseBoxWidth, rcCaption.top,
		rcCaption.right - iCloseBoxWidth,rcCaption.bottom);

}


//get Close box rect screen coordsys
void 
wndGetCloseBoxRect(
	HWND hWnd, 
	LPRECT lpRect
)
{
	RECT rcCaption;
	wndGetCaptionRect(hWnd,&rcCaption);
	if(!IsCloseBox(hWnd)){
		SetRect(lpRect,0,0,0,0);
		return;
	}
	SetRect(lpRect,rcCaption.right - WIN_CLOSEBOX_WIDTH,rcCaption.top,
		rcCaption.right,rcCaption.bottom);
}


void 
CloseBoxPenDownProc(
	HWND hWnd
)
{
	PWindowsTree pWin;
	RECT rc;
	pWin = (PWindowsTree)hWnd;
	pWin->dwStyle |= WS_CLOSEBOXPRESSED;
	//invalidte
	wndGetCloseBoxRect(hWnd,&rc);
	scrInvalidateRect(hWnd, &rc, true);
	
}
void 
OkButtonPenDownProc(
	HWND hWnd
)
{
	PWindowsTree pWin;
	RECT rc;
	pWin = (PWindowsTree)hWnd;
	pWin->dwStyle |= WS_OKBUTTONPRESSED;
	//invalidte
	wndGetOkButtonRect(hWnd,&rc);
	scrInvalidateRect(hWnd, &rc, true);	
}



void 
CloseBoxPenUpProc(
	HWND hWnd
)
{
	PWindowsTree pWin;
	RECT rc;
	pWin = (PWindowsTree)hWnd;
	pWin->dwStyle = pWin->dwStyle & ~WS_CLOSEBOXPRESSED;
	//invalidte
	wndGetCloseBoxRect(hWnd,&rc);
	scrInvalidateRect(hWnd, &rc, true);
	//send message
	SendNotifyMessage(hWnd,LMSG_CLOSE,(WPARAM)NULL,(LPARAM)NULL);
	
}
void 
OkButtonPenUpProc(
	HWND hWnd
)
{
	PWindowsTree pWin;
	RECT rc;
	pWin = (PWindowsTree)hWnd;
	pWin->dwStyle = pWin->dwStyle & ~WS_OKBUTTONPRESSED;
	//invalidte
	wndGetOkButtonRect(hWnd,&rc);
	scrInvalidateRect(hWnd, &rc, true);	
	//send message
	SendNotifyMessage(hWnd,LMSG_OK,(WPARAM)NULL,(LPARAM)NULL);
	
}