//*********************
// PseudoButtons: replaces CButton class for simple button operations
// This solution illustrates
// 1) Getting Parent and Message ID from CWnd base class
// 2) Smart refrech on MouseMove
// 3) Interesting Brush for drawing button window
// 4) Handles loss of capture due to another windows action
// 5) Uses same constructor as CButton
// 6) Makes minimal changes in MsgEdit program (only the class types)
//
// AUTHOR: Chris Wild
// DATE: October 20, 1997
//****************


#include "CPseudoButton.h"

BEGIN_MESSAGE_MAP(CPseudoButton, CWnd)
	ON_WM_PAINT()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_WM_CAPTURECHANGED()
END_MESSAGE_MAP()

CPseudoButton::CPseudoButton()
{
	highLight=false;
}

BOOL CPseudoButton::Create(LPCTSTR lpszCaption, DWORD dwStyle, 
				const RECT& rect, CWnd* pParentWnd, UINT nID)
{
	return CWnd::Create(NULL, lpszCaption, dwStyle, rect, pParentWnd, nID, NULL);
}

CPseudoButton::~CPseudoButton()
{
	DestroyWindow();
}

void CPseudoButton::OnPaint()
{
	CPaintDC dc(this);
	CBrush* pOldBrush;
	CBrush newBrush(HS_VERTICAL,BLUE);
	CRect rect;
	GetClientRect(&rect);
	pOldBrush = dc.SelectObject(&newBrush);
	CString title;
	GetWindowText(title);
	if (highLight) { //mouse is in the button window
		dc.SetTextColor(RED);
		dc.SetBkColor(GREEN);
	}
	else { //mouse is outside the button window
		dc.SetTextColor(BLACK);
		dc.SetBkColor(RED);
	}
	dc.Rectangle(rect);
	dc.DrawText(title, -1, &rect, 
				 DT_SINGLELINE | DT_CENTER | DT_VCENTER);
	dc.SelectObject(pOldBrush);
}


// respond on message WM_MOUSEMOVE
// if mouse is in the button, set the highLight variable to be true
// if the mouse move out of the button, set highLight to be false
// and then redraw window 
// However if ther window is already highlight when mouse moves in window, ignore

void CPseudoButton::OnMouseMove(UINT nFlags, CPoint point)
{
	CRect myrect;

	GetClientRect(&myrect);
	if(myrect.PtInRect(point))
	{
		if(GetCapture() == this)
			return; // avoid multiple redraws
		SetCapture();
		highLight=true;
	}
	else
	{
		ReleaseCapture();
		highLight=false;
		CString title; // display coordinates for fun
		title.Format("(%d,%d)",point.x,point.y);
		GetParent()->SetWindowText(title);
	}
	Invalidate();
}

void CPseudoButton::OnLButtonUp()
{
	GetParent()->SendMessage(WM_COMMAND, GetDlgCtrlID(),NULL);
}

void CPseudoButton::OnCaptureChanged(CWnd* pWnd)
{
	GetParent()->SetWindowText("CaptureChanged");
	Beep(4000,1000);
	if(GetCapture() != this) {
		ReleaseCapture();
		highLight = false;
		Invalidate();
	}
	CWnd::OnCaptureChanged(this);
}