#include <PalmOS.h>#include "com.h"#include "viewport.h"#include "log.h"UInt32	scaleX;Int16	scaleY;UInt32	offX;Int16	offY;UInt32	offsetX;Int16	offsetY;RectangleType	bounds;void ViewportInit(ViewPortData viewport){	FormType*		frm = viewport.frm;	UInt16			gadgetID = viewport.gadgetID;	UInt16			gadgetIndex = FrmGetObjectIndex(frm, gadgetID);	FrmGetObjectBounds(frm, gadgetIndex, &bounds);		scaleX =  ((viewport.maxX - viewport.offsetX) / (bounds.extent.x)) + 1;	scaleY = ((viewport.maxY - viewport.offsetY) / (bounds.extent.y)) + 1 ;	offX = bounds.topLeft.x;	offY = bounds.topLeft.y;	offsetX = viewport.offsetX;	offsetY = viewport.offsetY;	WinDrawRectangleFrame(simpleFrame, &bounds);}void ViewportDraw(void){	LogEntryT	entry;	UInt16	num;	UInt16	i;	UInt16 j;	RectangleType	rectangle;		rectangle.topLeft.x = bounds.topLeft.x + 1;	rectangle.topLeft.y = bounds.topLeft.y + 1;	rectangle.extent.x = bounds.extent.x - 1;	rectangle.extent.y = bounds.extent.y - 1;		WinEraseRectangle(&rectangle, 0);		for (j = 0; j < LogGetNumRecords(logDb); j++)	{		num = LogGetNumEntries(logDb, j);		for (i = 0; i < num; i++)		{			LogGetEntry(logDb, j, i, &entry);			entry.time =entry.time;			rectangle.topLeft.x = ((entry.time - offsetX)) / scaleX + offX;			rectangle.topLeft.y = bounds.extent.y - ((entry.temp - offsetY)) / scaleY + offY - 1;			rectangle.extent.x = 2;			rectangle.extent.y = 2;			WinDrawRectangle(&rectangle, 2);		}	}}