eudora-mac/tlate_ldef.c

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#define FILE_NUM 85
/* Copyright (c) 1996 by QUALCOMM Incorporated */

#pragma segment TlateCalc
void TlateListDraw(Boolean lSelect,Rect *lRect,Cell lCell,ListHandle lHandle);
void TlateListHilite(Rect *lRect,Cell lCell,ListHandle lHandle);
void TlateListCalc(ListHandle lHandle,Handle suite,Rect *lRect,PStr name,Rect *iconR,Point *textP, RgnHandle iRgn);
pascal void TlateListDef(short lMessage, Boolean lSelect, Rect *lRect, Cell lCell,
	short lDataOffset, short lDataLen, ListHandle lHandle)
{
#pragma unused(lDataOffset,lDataLen)
	Rect fullRect;
	if (lMessage==lDrawMsg || lMessage==lHiliteMsg)
	{
		fullRect = *lRect;
		fullRect.bottom = fullRect.top + (*lHandle)->cellSize.v;
	}
	switch (lMessage)
	{
		case lDrawMsg:
			TlateListDraw(lSelect,&fullRect,lCell,lHandle);
			break;
		case lHiliteMsg:
			TlateListHilite(&fullRect,lCell,lHandle);
			break;
	}
}

void TlateListDraw(Boolean lSelect,Rect *lRect,Cell lCell,ListHandle lHandle)
{
	short junk=sizeof(short);
	Str255 name;
	Rect iconR;
	Point textP;
	Handle suite;
	SAVE_STUFF;
	SET_COLORS;
	
	/*
	 * erase the rectangle first
	 */
	EraseRect(lRect);
	SetSmallSysFont();
	
	/*
	 * fetch the suite and name
	 */
	ETLNameAndIcon(lCell.v,name,&suite);
	
	/*
	 * calculate boxes and regions and stuff
	 */
	TlateListCalc(lHandle,suite,lRect,name,&iconR,&textP,nil);
	
	/*
	 * draw the text
	 */
	MoveTo(textP.h,textP.v); DrawString(name);
	
	/*
	 * and the icon
	 */
	if (iconR.bottom)
	{
		if (suite) PlotIconSuite(&iconR, atAbsoluteCenter, ttNone, suite);
	}
	if (lSelect) TlateListHilite(lRect,lCell,lHandle);
	
	/*
	 * restore
	 */
	REST_STUFF;
}

void TlateListHilite(Rect *lRect,Cell lCell,ListHandle lHandle)
{
	short junk=sizeof(short);
	Rect iconR;
	Point textP;
	RgnHandle iRgn = NewRgn();
	Str255 name;
	Handle suite;
	SAVE_STUFF;
	SET_COLORS;
	
	/*
	 * fetch the suite and name
	 */
	ETLNameAndIcon(lCell.v,name,&suite);

	if (iRgn)
	{
		TlateListCalc(lHandle,suite,lRect,name,&iconR,&textP,iRgn);
		HiInvertRgn(iRgn);
		DisposeRgn(iRgn);
	}
	else
	{
		HiInvertRect(lRect);
	}
	REST_STUFF;
}

void TlateListCalc(ListHandle lHandle,Handle suite,Rect *lRect,PStr name,Rect *iconR,Point *textP, RgnHandle iRgn)
{
	RgnHandle iconRgn = NewRgn();

	NamedIconCalc(lRect,name,(*lHandle)->indent.h,(*lHandle)->indent.v,iconR,textP);
	SetRect(iconR,lRect->left,lRect->top,lRect->left+32,lRect->top+32);
	OffsetRect(iconR,(*lHandle)->indent.h,(*lHandle)->indent.v+(RectHi(*lRect)-32)/2);
	textP->h = iconR->right+2;
	textP->v = iconR->bottom-8;
	if (iconRgn && suite)
	{
		IconSuiteToRgn(iconRgn,iconR,atAbsoluteCenter,suite);
		/*
		 * invert region begins as whole rectangle
		 */
		if (iRgn)
		{
			RectRgn(iRgn,lRect);
		
			/*
			 * punch icon mask out of invert region
			 */
			if (lRect->bottom-lRect->top>18 && (iconRgn = NewRgn()))
			{
				IconSuiteToRgn(iconRgn,iconR,atAbsoluteCenter,suite);
				DiffRgn(iRgn,iconRgn,iRgn);
			}
		}
	}
	DisposeRgn(iconRgn);
}