diff -r 000000000000 -r 1450b09d0cfd qstmgesturelib/qstmutils.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/qstmgesturelib/qstmutils.cpp Tue May 04 12:39:35 2010 +0300 @@ -0,0 +1,91 @@ +/* +* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Gesture recognition utilities +* +*/ + + +#include "qstmutils.h" +#include "qstmgesturedefs.h" + +using namespace qstmUiEventEngine; + +inline int QStm_Utils::longerEdge( const QSize& size ) +{ + return MAX( size.height(), size.width() ); +} + + +QRect QStm_Utils::toleranceRectMm( const QPoint& centerPoint, int size_mm ) +{ + long toleranceLength = mm2Pixels(size_mm) / 2; + return toleranceRectPx(centerPoint, toleranceLength); +} + +QRect QStm_Utils::toleranceRectPx( const QPoint& centerPoint, int size_px ) +{ + QRect toleranceRect( QPoint(0,0), QSize(size_px, size_px) ); + // grow by the tolerance length, while keeping the center point + toleranceRect.moveCenter(centerPoint); + return toleranceRect; +} + + +long QStm_Utils::mm2Pixels(long mm) +{ + //return Twips2Pixels(mm * KTwipsInMm); + return mm * QApplication::desktop()->height() / QApplication::desktop()->heightMM(); +} + +long QStm_Utils::inches2Pixels(double inches) + { + //return Twips2Pixels(inches * KTwipsInInch); + return inches * 25.4 * QApplication::desktop()->height() / QApplication::desktop()->heightMM(); + } + +int QStm_Utils::distance(const QPoint& p1, const QPoint& p2) +{ +/* + double d = dx * dx + dy * dy; + double dist ; + Math::Sqrt(dist, d) ; + return dist; +*/ + QPoint diff = p1 - p2; + int x = diff.x(); + int y = diff.y(); + + if(x<0) x=-x; + if(y<0) y=-y; + if(x < y) { + int t = x; + x = y; + y = t; // ensures that x >= y + } + int dist = (y < ((13107 * x)>>15)) ? // * (.4) + (x + ((y * 6310)>>15)) : // * (.192582403) + (((x * 27926)>>15) // * (.852245894) + + ((y * 18414)>>15)); // * (.561967668) + return dist; +} + + +qreal QStm_Utils::distanceF(const QPoint& p1, const QPoint& p2) +{ + QPoint diff = p1 - p2; + double dist; + SQRT(dist, ((qreal)(diff.x() * diff.x() + diff.y() * diff.y()))) ; + return dist; +} +