#include <mdiwin/btnlnk.hpp>

LinkedButton::LinkedButton(void)
: mCtlID(0), mhBitmapFocusUp(0), mhBitmapNoFocusUp(0), mFocus(Focus),
	mhBitmapFocusDown(0), mlpBitmapDefault(0), mReferenceCount(0), mhLibrary(0)
{
}

LinkedButton::LinkedButton(int ctlID,String &focusUp,String &noFocusUp,String &focusDown,HINSTANCE hLibrary,FocusItem focusItem)
: mCtlID(ctlID), mReferenceCount(1), mFocus(focusItem),
	mhLibrary(hLibrary), mFocusUpString(focusUp), mNoFocusUpString(noFocusUp),
	mFocusDownString(focusDown)
{
	loadButtons();
}

LinkedButton::LinkedButton(const LinkedButton &someLinkedButton)
: mCtlID(someLinkedButton.mCtlID), mReferenceCount(someLinkedButton.mReferenceCount),
	mFocus(someLinkedButton.mFocus), mhLibrary(someLinkedButton.mhLibrary),
	mFocusUpString(someLinkedButton.mFocusUpString),
	mNoFocusUpString(someLinkedButton.mNoFocusUpString),
	mFocusDownString(someLinkedButton.mFocusDownString)
{
	loadButtons();
}

void LinkedButton::loadButtons(void)
{
	mhBitmapFocusUp=::LoadBitmap(mhLibrary,mFocusUpString);
	mhBitmapNoFocusUp=::LoadBitmap(mhLibrary,mNoFocusUpString);
	mhBitmapFocusDown=::LoadBitmap(mhLibrary,mFocusDownString);
	if(Focus==mFocus)mlpBitmapDefault=&mhBitmapFocusUp;
	else mlpBitmapDefault=&mhBitmapNoFocusUp;
}

LinkedButton::~LinkedButton()
{
	if(mhBitmapFocusUp)::DeleteObject(mhBitmapFocusUp);
	if(mhBitmapNoFocusUp)::DeleteObject(mhBitmapNoFocusUp);
	if(mhBitmapFocusDown)::DeleteObject(mhBitmapFocusDown);
}

WORD LinkedButton::drawButton(LPDRAWITEMSTRUCT lpControlData)
{
	int retCode(TRUE);
	RECT buttonRect;

	::SetRect((RECT FAR *)&buttonRect,0,0,0,0);
	switch(lpControlData->itemAction)
	{
	  case ODA_DRAWENTIRE :
			if(lpControlData->itemState & ODS_SELECTED)drawBitmap(lpControlData->hDC,mhBitmapFocusDown,buttonRect);
				else if(lpControlData->itemState & ODS_FOCUS)drawBitmap(lpControlData->hDC,*mlpBitmapDefault,buttonRect);
					else drawBitmap(lpControlData->hDC,mhBitmapNoFocusUp,buttonRect);
			break;
		case ODA_SELECT :
			if(lpControlData->itemState & ODS_SELECTED)drawBitmap(lpControlData->hDC,mhBitmapFocusDown,buttonRect);
			else
			{
				drawBitmap(lpControlData->hDC,mhBitmapFocusUp,buttonRect);
				retCode=FALSE;
			}
			break;
		case ODA_FOCUS :
			if(lpControlData->itemState & ODS_FOCUS)drawBitmap(lpControlData->hDC,mhBitmapFocusUp,buttonRect);
			else drawBitmap(lpControlData->hDC,mhBitmapNoFocusUp,buttonRect);
			break;
	}
	return retCode;
}