--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsutils/src/hswidgetpositioningonwidgetmove.cpp Tue Jul 06 14:06:53 2010 +0300
@@ -0,0 +1,1013 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+#include <QVector2D>
+#include "hswidgetpositioningonwidgetmove.h"
+#include "hsapp_defs.h"
+
+
+/*!
+ The distance by which the line is extended on each side of reference points
+*/
+#define SNAP_LINE_EXTEND_VALUE 10.0
+
+/*!
+ Sets the snap method instance. The existing instance
+ will be deleted.
+*/
+void HsWidgetPositioningOnWidgetMove::setInstance(HsWidgetPositioningOnWidgetMove *instance)
+{
+ if (mInstance)
+ delete mInstance;
+ mInstance = instance;
+}
+
+/*!
+ Returns the snap method instance.
+*/
+HsWidgetPositioningOnWidgetMove *HsWidgetPositioningOnWidgetMove::instance()
+{
+ return mInstance;
+}
+
+/*!
+ Points to the snap method instance.
+*/
+HsWidgetPositioningOnWidgetMove *HsWidgetPositioningOnWidgetMove::mInstance = 0;
+
+/*!
+ Constructor.
+*/
+HsSnapToLines::HsSnapToLines() :
+ mActiveRectWidth(0.0), mActiveRectHeight(0.0),
+ mHorizontalSnapPosition(0.0), mVerticalSnapPosition(0.0),
+ mHorizontalSnapFound(false),
+ mVerticalSnapFound(false),
+ mRectLieAbove(false), mLeftInRange(false), mRightInRange(false),
+ mMinVerticalEdgesDistance(0.0), mVerticalDistance(0.0),
+ mVerticalDistanceFromSelectedRect(0.0), mContainerVerticalEdgeDistance(0.0),
+ mRectLieLeft(false), mTopInRange(false), mBottomInRange(false),
+ mMinHorizontalEdgesDistance(0.0), mHorizontalDistance(0.0),
+ mHorizontalDistanceFromSelectedRect(0.0), mContainerHorizontalEdgeDistance(0.0),
+ mSnapEnabled(false), mSnapForce(0.0), mSnapGap(0.0), mSnapBorderGap(0.0),
+ mRectVerticalEdgeLiesInLineWithVerticalLine(false), mRectLieAboveVerticalLine(false), mRectLieBelowVerticalLine(false),
+ mRectHorizontalEdgeLiesInLineWithHorizontalLine(false), mRectLieLeftOfHorizontalLine(false), mRectLiesRightOfHorizontalLine(false)
+{
+
+}
+
+/*!
+ Configures the snap-to-lines algorithm.
+*/
+void HsSnapToLines::setConfiguration(const QVariantHash &configuration)
+{
+ bool canConvert = false;
+ mSnapEnabled = configuration[SNAPENABLED].toBool();
+ //The following values should be in qreal, so the status received in canConvert is ignored
+ mSnapForce = configuration[SNAPFORCE].toDouble(&canConvert);
+ mSnapGap = configuration[SNAPGAP].toDouble(&canConvert);
+ mSnapBorderGap = configuration[SNAPBORDERGAP].toDouble(&canConvert);
+}
+
+/*!
+ Set the dimensions of container rect, active rect and position of Inactive Rects
+ on the page.
+*/
+void HsSnapToLines::setPagePresentation(const QRectF &containerRect,
+ const QList<QRectF> &inactiveRects,
+ const QRectF &activeRect)
+{
+ mContainerRect.setLeft(containerRect.left() + mSnapBorderGap);
+ mContainerRect.setTop(containerRect.top() + mSnapBorderGap);
+ mContainerRect.setRight(containerRect.right() - mSnapBorderGap);
+ mContainerRect.setBottom(containerRect.bottom() - mSnapBorderGap);
+
+ mActiveRectWidth = activeRect.width();
+ mActiveRectHeight = activeRect.height();
+
+ createSnappableRectangles(inactiveRects);
+}
+
+/*!
+ Create the list of rects and flag if their sides are snappable from top or bottom or left or right,
+ depending on other rects overlapping with the rect.
+*/
+void HsSnapToLines::createSnappableRectangles(const QList<QRectF> &inactiveRects)
+{
+ mInactiveSnapRects.clear();
+
+ int i;
+ for (i = 0; i<inactiveRects.count(); ++i) {
+ QRectF rect = inactiveRects[i];
+ HsSnapRectangle snapRectangle(rect);
+
+ int j;
+ for (j = 0; j<inactiveRects.count(); ++j) {
+ QRectF rectToCompare = inactiveRects[j];
+ if (rect != rectToCompare) {
+ //Check if the rectangles being compared intersect each other
+ if (rectToCompare.intersects(rect)) {
+ //As the widgets intersect, check which corner is contained,
+ //The corner that is contained is not snappable, when the moving widget is in the same position
+ if (rectToCompare.contains(rect.topLeft())) {
+ snapRectangle.isLeftSnapableForAbove = false;
+ snapRectangle.isTopSnapableForLeft = false;
+ }
+
+ if (rectToCompare.contains(rect.topRight())) {
+ snapRectangle.isRightSnapableForAbove = false;
+ snapRectangle.isTopSnapableForRight = false;
+ }
+
+ if (rectToCompare.contains(rect.bottomRight())) {
+ snapRectangle.isRightSnapableForBelow = false;
+ snapRectangle.isBottomSnapableForRight = false;
+ }
+
+ if (rectToCompare.contains(rect.bottomLeft())) {
+ snapRectangle.isLeftSnapableForBelow = false;
+ snapRectangle.isBottomSnapableForLeft = false;
+ }
+ }
+ }
+ }
+ if (snapRectangle.isLeftSnapableForAbove || snapRectangle.isLeftSnapableForBelow ||
+ snapRectangle.isRightSnapableForAbove || snapRectangle.isRightSnapableForBelow ||
+ snapRectangle.isTopSnapableForLeft || snapRectangle.isTopSnapableForRight ||
+ snapRectangle.isBottomSnapableForLeft || snapRectangle.isBottomSnapableForRight) {
+ mInactiveSnapRects.append(snapRectangle);
+ }
+ }
+}
+
+/*!
+ Run the snap algorithm to with the position of moving rect, to get a snap result.
+*/
+HsWidgetPositioningOnWidgetMove::Result HsSnapToLines::run(const QRectF &movingRect)
+{
+ HsWidgetPositioningOnWidgetMove::Result result;
+
+ if (mSnapEnabled) {
+ mMovingRect = movingRect;
+ mHorizontalSnapPosition = 0.0;
+ mVerticalSnapPosition = 0.0;
+
+ mVerticalLine = QLineF();
+ mMinVerticalEdgesDistance = mSnapForce;
+ mVerticalDistanceFromSelectedRect = 0.0;
+ mContainerVerticalEdgeDistance = 0.0;
+ mHorizontalSnapFound = false;
+
+ mHorizontalLine = QLineF();
+ mMinHorizontalEdgesDistance = mSnapForce;
+ mHorizontalDistanceFromSelectedRect = 0.0;
+ mContainerHorizontalEdgeDistance = 0.0;
+ mVerticalSnapFound = false;
+
+ checkForCenterSnapping();
+ for (int i = 0; i < mInactiveSnapRects.count(); ++i) {
+ mInactiveSnapRectToCompare = mInactiveSnapRects[i];
+ mInactiveRectToCompare = mInactiveSnapRectToCompare.rectangle;
+ if (!movingRect.intersects(mInactiveRectToCompare)) { //Only compare if Inactive Rect and moving rect do not overlap.
+ //TODO: Move the above check to another function...
+ // X - Direction Snapping
+ compareLeftSideOfMovingRectForSnapping();
+ compareRightSideOfMovingRectForSnapping();
+ // Y - Direction Snapping
+ compareTopOfMovingRectForSnapping();
+ compareBottomOfMovingRectForSnapping();
+ }
+ }
+
+ if (mHorizontalSnapFound) {
+ result.hasHorizontalSnap = true;
+ result.horizontalSnapPosition = mHorizontalSnapPosition;
+ extendVerticalLine();
+ result.verticalSnapLine = mVerticalLine;
+ }
+
+ if (mVerticalSnapFound) {
+ result.hasVerticalSnap = true;
+ result.verticalSnapPosition = mVerticalSnapPosition;
+ extendHorizontalLine();
+ result.horizontalSnapLine = mHorizontalLine;
+ }
+ }
+
+ return result;
+}
+
+/*!
+ Check if the center of moving rect is in the snap force in the middle of continer rect.
+*/
+void HsSnapToLines::checkForCenterSnapping()
+{
+ QPointF centerOfContainerRect = mContainerRect.center();
+
+ QRectF verticalSnapField = QRectF(QPointF(centerOfContainerRect.x() - (mSnapForce/2), mContainerRect.top()),
+ QPointF(centerOfContainerRect.x() + (mSnapForce/2), mContainerRect.bottom()));
+
+ //Check that the widget lies in the container rect, if the snapping position is proposed... is not required,
+ //unless some widget is bigger than the page width
+ QPointF centerOfMovingRect = mMovingRect.center();
+ if (verticalSnapField.contains(centerOfMovingRect)) {
+ mHorizontalSnapFound = true;
+ mHorizontalSnapPosition = centerOfContainerRect.x() - mActiveRectWidth/2;
+ mMinVerticalEdgesDistance = qAbs(centerOfContainerRect.x() - centerOfMovingRect.x());
+ //save the points for the Vertical line
+ mVerticalLine.setP1(QPointF(centerOfContainerRect.x(), mMovingRect.top()));
+ mVerticalLine.setP2(QPointF(centerOfContainerRect.x(), mMovingRect.bottom()));
+ }
+}
+
+/*!
+ Check if the inactive rect being compared with moving rect lies above or below of moving rect.
+*/
+void HsSnapToLines::checkInactiveRectLieAboveOrBelowOfMovingRect()
+{
+ //Check if the inactive rect lies below or above of the moving rect
+ mRectLieAbove = false;
+ mVerticalDistance = 0.0;
+ //Inactive Rect lies above or at the save Y position as the Moving Rect
+ if (mInactiveRectToCompare.top() <= mMovingRect.top()) {
+ mRectLieAbove = true;
+ if (mInactiveRectToCompare.bottom() <= mMovingRect.top()) {
+ mVerticalDistance = mMovingRect.top() - mInactiveRectToCompare.bottom();
+ }
+ else {
+ mVerticalDistance = mMovingRect.top() - mInactiveRectToCompare.top();
+ }
+ }
+ //Inactive Rect lies below the Moving Rect
+ else {
+ mRectLieAbove = false;
+ if (mMovingRect.bottom() <= mInactiveRectToCompare.top()) {
+ mVerticalDistance = mInactiveRectToCompare.top() - mMovingRect.bottom();
+ }
+ else {
+ mVerticalDistance = mInactiveRectToCompare.bottom() - mMovingRect.bottom();
+ }
+ }
+}
+
+
+/*!
+ Check if the left edge of moving rect is snappable to the incative rect's left or right edge.
+ The inactive rect's edge is only chosen if it is a better fit for horizontal snapping.
+*/
+void HsSnapToLines::compareLeftSideOfMovingRectForSnapping()
+{
+ checkInactiveRectLieAboveOrBelowOfMovingRect();
+
+ //calculate the distance of the moving rect's left edge to the inactive rect's left and right edges
+ qreal leftToLeftOfInactiveRect = qAbs(mInactiveRectToCompare.left() - mMovingRect.left());
+ qreal leftToRightOfInactiveRect = qAbs(mInactiveRectToCompare.right() - mMovingRect.left());
+ mLeftInRange = false;
+ mRightInRange = false;
+
+ if (leftToLeftOfInactiveRect <= mMinVerticalEdgesDistance) {
+ if (mRectLieAbove && mInactiveSnapRectToCompare.isLeftSnapableForBelow
+ || !mRectLieAbove && mInactiveSnapRectToCompare.isLeftSnapableForAbove) {
+ mLeftInRange = true;
+ }
+ }
+ if (leftToRightOfInactiveRect <= mMinVerticalEdgesDistance) {
+ if (mRectLieAbove && mInactiveSnapRectToCompare.isRightSnapableForBelow
+ || !mRectLieAbove && mInactiveSnapRectToCompare.isRightSnapableForAbove) {
+ mRightInRange = true;
+ }
+ }
+
+ //calculate the distance of inactive rect's left edge and container rect's left edge
+ qreal differenceContainerLeftEdgeToInactiveRectLeftEdge = mInactiveRectToCompare.left() - mContainerRect.left();
+ //calculate the distance of inactive rect's right edge and container rect's right edge
+ qreal differenceContainerRightEdgeToInactiveRectRightEdge = mContainerRect.right() - mInactiveRectToCompare.right();
+
+ qreal minDistancePosition = 0.0;
+ qreal distanceVerticalEdges = 0.0;
+ qreal xSnapGapAdjustment = 0.0;
+
+ //If only one edge of inactive rect is in snappable range, save that position
+ if ((mLeftInRange && !mRightInRange)
+ || !mLeftInRange && mRightInRange) {
+ if (mLeftInRange) {
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = leftToLeftOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ }
+ else {
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = leftToRightOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ }
+ }
+ //else both edges of inactive rect are in range, check which is a better fit
+ else if (mLeftInRange && mRightInRange) {
+ //if left edge of moving rect to the left of the inactive rect is closer than the left edge of moving rect to the right of the inactive rect
+ if (leftToLeftOfInactiveRect < leftToRightOfInactiveRect) {
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = leftToLeftOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ mRightInRange = false;
+ }
+ //if the left edge of inactive rect to left of moving rect is at the same distance as the right edge of inactive rect to the right of moving rect
+ else if (leftToLeftOfInactiveRect == leftToRightOfInactiveRect) {
+ //if inactive rect lies towards the left or middle of container rect, then the left edge is priortized as the selected edge for outside snapping
+ if (differenceContainerLeftEdgeToInactiveRectLeftEdge <= differenceContainerRightEdgeToInactiveRectRightEdge) {
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = leftToLeftOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ mRightInRange = false;
+ }
+ //else right of the inactive rect lies more close to the right of the container rect, and hence prioritize it for snapping.
+ else {
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = leftToRightOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ mLeftInRange = false;
+ }
+ }
+ //else right edge of inactive rect to the left of the moving rect is closer than the left edge of inactive rect to the left of the moving rect
+ else{
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = leftToRightOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ mLeftInRange = false;
+ }
+ }
+
+ //Check if this inactive rect is better fit than the previous selected rect for X - snapping
+ bool horizontalSnappingBetterFit = false;
+ if (mLeftInRange || mRightInRange) {
+ if (distanceVerticalEdges < mMinVerticalEdgesDistance) {
+ horizontalSnappingBetterFit = true;
+ }
+ else if (distanceVerticalEdges == mMinVerticalEdgesDistance) { //the distance in the vertical edges is same as from the selected rectangle
+ //check the position of rect with respect to Vertical line
+ checkInactiveRectPositionToVerticalLine();
+ //if horizontal snap position was previously found the rect's edges are in line with Vertical line
+ if (mHorizontalSnapFound && mRectVerticalEdgeLiesInLineWithVerticalLine) {
+ if (mRectLieAboveVerticalLine || mRectLieBelowVerticalLine) {
+ extendVerticalLineToIncludeInactiveRect();
+ }
+ }
+ //here the case is that moving rect lies exactly in middle of two same sides of two inactive widgets.
+ else {
+ //Prioritize first on the fact if the inactive rect is closer to the moving rect in Y - direction.
+ if (mVerticalDistance < mVerticalDistanceFromSelectedRect) {
+ horizontalSnappingBetterFit = true;
+ }
+ else if (mVerticalDistance == mVerticalDistanceFromSelectedRect) {
+ //Prioritize next if this Inactive rect is closer to the left edge of the container rect, then the previously selected rect
+ if (differenceContainerLeftEdgeToInactiveRectLeftEdge < mContainerVerticalEdgeDistance) {
+ horizontalSnappingBetterFit = true;
+ }
+ //Prioritize next if the Inactive widget's left edge lies near to left edge of the container rect
+ else if (differenceContainerLeftEdgeToInactiveRectLeftEdge < differenceContainerRightEdgeToInactiveRectRightEdge) {
+ horizontalSnappingBetterFit = true;
+ }
+ else {
+ //This else will happen if this rectangle being compared is exactly the same as the selected rectangle for snapping.
+ //In that case it does not matter which is the selected rectangle. Hence we leave the already selected rectangle as the better fit.
+ }
+ }
+ }
+ }
+ }
+
+ if (horizontalSnappingBetterFit) {
+ qreal proposedRightOfActiveRect = minDistancePosition + xSnapGapAdjustment + mActiveRectWidth;
+ if (qBound(mContainerRect.left(), proposedRightOfActiveRect, mContainerRect.right())
+ == proposedRightOfActiveRect) {
+ mHorizontalSnapFound = true;
+ mHorizontalSnapPosition = minDistancePosition + xSnapGapAdjustment;
+ mMinVerticalEdgesDistance = distanceVerticalEdges;
+ mVerticalDistanceFromSelectedRect = mVerticalDistance;
+ //Save the new distance of the Chosen Rectangle's left edge from Container's left edge
+ mContainerVerticalEdgeDistance = differenceContainerLeftEdgeToInactiveRectLeftEdge;
+
+ if (mRectLieAbove) {
+ mVerticalLine.setP1(QPointF(minDistancePosition, mInactiveRectToCompare.top()));
+ mVerticalLine.setP2(QPointF(minDistancePosition, mMovingRect.bottom()));
+ }
+ else {
+ mVerticalLine.setP1(QPointF(minDistancePosition, mInactiveRectToCompare.bottom()));
+ mVerticalLine.setP2(QPointF(minDistancePosition, mMovingRect.top()));
+ }
+ }
+ }
+}
+
+/*!
+ Check if the right edge of moving rect is snappable to the incative rect's left or right edge.
+ The inactive rect's edge is only chosen if it is a better fit for horizontal snapping.
+*/
+void HsSnapToLines::compareRightSideOfMovingRectForSnapping()
+{
+ checkInactiveRectLieAboveOrBelowOfMovingRect();
+
+ //calculate the distance of the moving rect's right edge to the inactive rect's left and right edges
+ qreal rightToLeftOfInactiveRect = qAbs(mInactiveRectToCompare.left() - mMovingRect.right());
+ qreal rightToRightOfInactiveRect = qAbs(mInactiveRectToCompare.right() - mMovingRect.right());
+ mLeftInRange = false;
+ mRightInRange = false;
+
+ if (rightToLeftOfInactiveRect <= mMinVerticalEdgesDistance) {
+ if (mRectLieAbove && mInactiveSnapRectToCompare.isLeftSnapableForBelow
+ || !mRectLieAbove && mInactiveSnapRectToCompare.isLeftSnapableForAbove) {
+ mLeftInRange = true;
+ }
+ }
+ if (rightToRightOfInactiveRect <= mMinVerticalEdgesDistance) {
+ if (mRectLieAbove && mInactiveSnapRectToCompare.isRightSnapableForBelow
+ || !mRectLieAbove && mInactiveSnapRectToCompare.isRightSnapableForAbove) {
+ mRightInRange = true;
+ }
+ }
+
+ //calculate the distance of inactive rect's left edge and container rect's left edge
+ qreal differenceContainerLeftEdgeToInactiveRectLeftEdge = mInactiveRectToCompare.left() - mContainerRect.left();
+ //calculate the distance of inactive rect's right edge and container rect's right edge
+ qreal differenceContainerRightEdgeToInactiveRectRightEdge = mContainerRect.right() - mInactiveRectToCompare.right();
+ qreal minDistancePosition = 0.0;
+ qreal distanceVerticalEdges = 0.0;
+ qreal xSnapGapAdjustment = 0.0;
+
+ //If only one edge of inactive rect is in snappable range, save that position
+ if ((mLeftInRange && !mRightInRange)
+ || !mLeftInRange && mRightInRange) {
+ if (mLeftInRange) {
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = rightToLeftOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ }
+ else {
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = rightToRightOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ }
+ }
+ //else both edges of inactive rect are in range, check which is a better fit
+ else if (mLeftInRange && mRightInRange) {
+ //if right edge of moving rect to the right of the inactive rect is closer than the right edge of moving rect to the left of inactive rect
+ if (rightToRightOfInactiveRect < rightToLeftOfInactiveRect) {
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = rightToRightOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ mLeftInRange = false;
+ }
+ //if the right edge of moving rect to right of inactive rect is at the same distance as the right edge of moving rect to the left of inactive rect
+ else if (rightToRightOfInactiveRect == rightToLeftOfInactiveRect) {
+ //if inactive rect lies towards the right of container rect, then the right edge is priortized as the selected edge for outside snapping
+ if (differenceContainerRightEdgeToInactiveRectRightEdge < differenceContainerLeftEdgeToInactiveRectLeftEdge ) {
+ minDistancePosition = mInactiveRectToCompare.right();
+ distanceVerticalEdges = rightToRightOfInactiveRect;
+ xSnapGapAdjustment = 0.0;
+ mLeftInRange = false;
+ }
+ //else left of the inactive rect lies more close to the left or middle of the container rect, and hence prioritize it
+ else {
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = rightToLeftOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ mRightInRange = false;
+ }
+ }
+ //else right edge of moving rect to the left of the inactive rect is closer than the right edge of moving rect to the right of the incoming rect
+ else{
+ minDistancePosition = mInactiveRectToCompare.left();
+ distanceVerticalEdges = rightToLeftOfInactiveRect;
+ xSnapGapAdjustment = mSnapGap;
+ mRightInRange = false;
+ }
+ }
+
+ //Check if this inactive rect is better fit than the previous selected rect
+ bool horizontalSnappingBetterFit = false;
+ if (mLeftInRange || mRightInRange) {
+ if (distanceVerticalEdges < mMinVerticalEdgesDistance) {
+ horizontalSnappingBetterFit = true;
+ }
+ else if (distanceVerticalEdges == mMinVerticalEdgesDistance) { //the distance in the vertical edge is same as from the selected rectangle
+ //check the position of rect with respect to Vertical line
+ checkInactiveRectPositionToVerticalLine();
+ //if horizontal snap position was previously found and the rect's edge is in line with Vertical line
+ if (mHorizontalSnapFound && mRectVerticalEdgeLiesInLineWithVerticalLine) {
+ if (mRectLieAboveVerticalLine || mRectLieBelowVerticalLine) {
+ extendVerticalLineToIncludeInactiveRect();
+ }
+ }
+ //here the case is that moving rect lies exactly in middle of two same sides of two inactive widgets.
+ else {
+ //Prioritize first on the fact if the inactive rect is closer to the moving rect in Y - direction.
+ if (mVerticalDistance < mVerticalDistanceFromSelectedRect) {
+ horizontalSnappingBetterFit = true;
+ }
+ else if (mVerticalDistance == mVerticalDistanceFromSelectedRect) {
+ //Prioritize next if this Inactive rect is closer to the right edge of the container rect, then the previously selected rect
+ if (differenceContainerRightEdgeToInactiveRectRightEdge < mContainerVerticalEdgeDistance) {
+ horizontalSnappingBetterFit = true;
+ }
+ //Prioritize next if the Inactive rect's right edge lies near to right edge of the container rect
+ else if (differenceContainerRightEdgeToInactiveRectRightEdge < differenceContainerLeftEdgeToInactiveRectLeftEdge) {
+ horizontalSnappingBetterFit = true;
+ }
+ else {
+ //This else will happen if this rectangle being compared is exactly the same as the selected rectangle for snapping, but in opposite Y direction.
+ //In that case it does not matter which is the selected rectangle. Hece we leave the already selected rectangle as the better fit.
+ }
+ }
+ }
+ }
+ }
+
+ if (horizontalSnappingBetterFit) {
+ qreal proposedLeftOfActiveRect = minDistancePosition - mActiveRectWidth - xSnapGapAdjustment;
+ if (qBound(mContainerRect.left(), proposedLeftOfActiveRect, mContainerRect.right())
+ == proposedLeftOfActiveRect) {
+ mHorizontalSnapFound = true;
+ mHorizontalSnapPosition = proposedLeftOfActiveRect;
+ mMinVerticalEdgesDistance = distanceVerticalEdges;
+ mVerticalDistanceFromSelectedRect = mVerticalDistance;
+ //Save the new distance of the Chosen Rectangle's right edge from Container's right edge
+ mContainerVerticalEdgeDistance = differenceContainerRightEdgeToInactiveRectRightEdge;
+
+ if (mRectLieAbove) {
+ //save the points for the Vertical line
+ mVerticalLine.setP1(QPointF(minDistancePosition, mInactiveRectToCompare.top()));
+ mVerticalLine.setP2(QPointF(minDistancePosition, mMovingRect.bottom()));
+ }
+ else {
+ //save the points for the Vertical line
+ mVerticalLine.setP1(QPointF(minDistancePosition, mInactiveRectToCompare.bottom()));
+ mVerticalLine.setP2(QPointF(minDistancePosition, mMovingRect.top()));
+ }
+ }
+ }
+}
+
+/*!
+ Check if the inactive rect being compared with moving rect lies on left or right of moving rect.
+*/
+void HsSnapToLines::checkInactiveRectLieLeftOrRightOfMovingRect()
+{
+ mRectLieLeft = false;
+ mHorizontalDistance = 0.0;
+ //Inactive Rect lies left of the Moving Rect
+ if (mInactiveRectToCompare.left() < mMovingRect.left()) {
+ mRectLieLeft = true;
+ if (mInactiveRectToCompare.right() <= mMovingRect.left()) {
+ mHorizontalDistance = mMovingRect.left() - mInactiveRectToCompare.right();
+ }
+ else {
+ mHorizontalDistance = mMovingRect.left() - mInactiveRectToCompare.left();
+ }
+ }
+ //Inactive Rect lies right of the Moving Rect
+ else {
+ mRectLieLeft = false;
+ if (mMovingRect.right() <= mInactiveRectToCompare.left()) {
+ mHorizontalDistance = mInactiveRectToCompare.left() - mMovingRect.right();
+ }
+ else {
+ mHorizontalDistance = mInactiveRectToCompare.right() - mMovingRect.right();
+ }
+ }
+}
+
+/*!
+ Check if the top edge of moving rect is snappable to the incative rect's top or bottom edge.
+ The inactive rect's edge is only chosen if it is a better fit for vertical snapping.
+*/
+void HsSnapToLines::compareTopOfMovingRectForSnapping()
+{
+ //Check if the inactive rect lies to the left or right of the moving rect
+ checkInactiveRectLieLeftOrRightOfMovingRect();
+
+ //calculate the distance of the moving rect's top edge to the inactive rect's top and bottom edges
+ qreal topToTopOfInactiveRect = qAbs(mInactiveRectToCompare.top() - mMovingRect.top());
+ qreal topToBottomOfInactiveRect = qAbs(mInactiveRectToCompare.bottom() - mMovingRect.top());
+ mTopInRange = false;
+ mBottomInRange = false;
+
+ if (topToTopOfInactiveRect <= mMinHorizontalEdgesDistance) {
+ if (mRectLieLeft && mInactiveSnapRectToCompare.isTopSnapableForRight
+ || !mRectLieLeft && mInactiveSnapRectToCompare.isTopSnapableForLeft) {
+ mTopInRange = true;
+ }
+ }
+ if (topToBottomOfInactiveRect <= mMinHorizontalEdgesDistance) {
+ if (mRectLieLeft && mInactiveSnapRectToCompare.isBottomSnapableForRight
+ || !mRectLieLeft && mInactiveSnapRectToCompare.isBottomSnapableForLeft) {
+ mBottomInRange = true;
+ }
+ }
+
+ //calculate the distance of inactive rect's top edge and container rect's top edge
+ qreal differenceContainerTopEdgeToInactiveRectTopEdge = mInactiveRectToCompare.top() - mContainerRect.top();
+ //calculate the distance of inactive rect's bottom edge and container rect's bottom edge
+ qreal differenceContainerBottomEdgeToInactiveRectBottomEdge = mContainerRect.bottom() - mInactiveRectToCompare.bottom();
+ qreal minDistancePosition = 0.0;
+ qreal distanceHorizontalEdges = 0.0;
+ qreal ySnapGapAdjustment = 0.0;
+
+ //If only one edge of inactive rect is in snappable range, save that position
+ if ((mTopInRange && !mBottomInRange)
+ || !mTopInRange && mBottomInRange) {
+ if (mTopInRange) {
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = topToTopOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ }
+ else {
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = topToBottomOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ }
+ }
+ //else both edges of inactive rect are in range, check which is a better fit
+ else if (mTopInRange && mBottomInRange) {
+ //if top edge of moving rect to the top of the inactive rect is closer than the bottom edge of moving rect to the bottom of the inactive rect
+ if (topToTopOfInactiveRect < topToBottomOfInactiveRect) {
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = topToTopOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ mBottomInRange = false;
+ }
+ //if the top edge of moving rect to top of inactive rect is at the same distance as the top edge of moving rect to the bottom of inactive rect
+ else if (topToTopOfInactiveRect == topToBottomOfInactiveRect) {
+ //if inactive rect lies towards the top or middle of container rect, then the top edge is priortized as the selected edge for outside snapping
+ if (differenceContainerTopEdgeToInactiveRectTopEdge <= differenceContainerBottomEdgeToInactiveRectBottomEdge) {
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = topToTopOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ mBottomInRange = false;
+ }
+ //else bottom of the inactive rect lies more close to the bottom of the container rect, and hence prioritize it for snapping.
+ else {
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = topToBottomOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ mTopInRange = false;
+ }
+ }
+ //else top edge of moving rect to the bottom of the inactive rect is closer than the top edge of moving rect to the top of the inactive rect
+ else{
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = topToBottomOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ mTopInRange = false;
+ }
+ }
+
+ //Check if this inactive rect is better fit than the previous selected rect
+ bool verticalSnappingBetterFit = false;
+ if (mTopInRange || mBottomInRange) {
+ if (distanceHorizontalEdges < mMinHorizontalEdgesDistance) {
+ verticalSnappingBetterFit = true;
+ }
+ else if (distanceHorizontalEdges == mMinHorizontalEdgesDistance) { //the distance in the horizontal edge is same as from the selected rectangle
+ //check the position of rect with respect to horizontal line
+ checkInactiveRectPositionToHorizontalLine();
+ //if vertical snap position was already found and this rect's horizontal edges lies in line with Horizontal snap line
+ if (mVerticalSnapFound && mRectHorizontalEdgeLiesInLineWithHorizontalLine) {
+ if (mRectLieLeftOfHorizontalLine || mRectLiesRightOfHorizontalLine) {
+ extendHorizontalLineToIncludeInactiveRect();
+ }
+ }
+ else {
+ //Prioritize first on the fact if the inactive rect is closer to the moving rect in X - direction.
+ if (mHorizontalDistance < mHorizontalDistanceFromSelectedRect) {
+ verticalSnappingBetterFit = true;
+ }
+ else if (mHorizontalDistance == mHorizontalDistanceFromSelectedRect) {
+ //Prioritize next if this Inactive rect is closer to the top edge of the container rect, then the previously selected rect
+ if (differenceContainerTopEdgeToInactiveRectTopEdge < mContainerHorizontalEdgeDistance) {
+ verticalSnappingBetterFit = true;
+ }
+ //Prioritize next if the Inactive widget's top edge lies near to top edge of the container rect
+ else if (differenceContainerTopEdgeToInactiveRectTopEdge < differenceContainerBottomEdgeToInactiveRectBottomEdge) {
+ verticalSnappingBetterFit = true;
+ }
+ else {
+ //This else will happen if this rectangle being compared is exactly the same as the selected rectangle for snapping, or in opposite X direction.
+ //In that case it does not matter which is the selected rectangle. Hence we leave the already selected rectangle as the better fit.
+ }
+ }
+ }
+ }
+ }
+
+ if (verticalSnappingBetterFit) {
+ qreal proposedBottomOfActiveRect = minDistancePosition + mActiveRectHeight + ySnapGapAdjustment;
+ if (qBound(mContainerRect.top(), proposedBottomOfActiveRect, mContainerRect.bottom())
+ == proposedBottomOfActiveRect) {
+ mVerticalSnapFound = true;
+ mVerticalSnapPosition = minDistancePosition + ySnapGapAdjustment;
+ mMinHorizontalEdgesDistance = distanceHorizontalEdges;
+ mHorizontalDistanceFromSelectedRect = mHorizontalDistance;
+ //Save the new distance of the Chosen Rectangle's top edge from Container's top edge
+ mContainerHorizontalEdgeDistance = differenceContainerTopEdgeToInactiveRectTopEdge;
+
+ if (mRectLieLeft) {
+ //save the points for the Horizontal line
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.left(), minDistancePosition));
+ mHorizontalLine.setP2(QPointF(mMovingRect.right(), minDistancePosition));
+ }
+ else {
+ //save the points for the Horizontal line
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.right(), minDistancePosition));
+ mHorizontalLine.setP2(QPointF(mMovingRect.left(), minDistancePosition));
+ }
+ }
+ }
+}
+
+/*!
+ Check if the bottom edge of moving rect is snappable to the incative rect's top or bottom edge.
+ The inactive rect's edge is only chosen if it is a better fit for vertical snapping.
+*/
+void HsSnapToLines::compareBottomOfMovingRectForSnapping()
+{
+ //Check if the inactive rect lies to the left or right of the moving rect
+ checkInactiveRectLieLeftOrRightOfMovingRect();
+
+ //calculate the distance of the moving rect's bottom edge to the inactive rect's top and bottom edges
+ qreal bottomToTopOfInactiveRect = qAbs(mInactiveRectToCompare.top() - mMovingRect.bottom());
+ qreal bottomToBottomOfInactiveRect = qAbs(mInactiveRectToCompare.bottom() - mMovingRect.bottom());
+ mTopInRange = false;
+ mBottomInRange = false;
+
+ if (bottomToTopOfInactiveRect <= mMinHorizontalEdgesDistance) {
+ if (mRectLieLeft && mInactiveSnapRectToCompare.isTopSnapableForRight
+ || !mRectLieLeft && mInactiveSnapRectToCompare.isTopSnapableForLeft) {
+ mTopInRange = true;
+ }
+ }
+ if (bottomToBottomOfInactiveRect <= mMinHorizontalEdgesDistance) {
+ if (mRectLieLeft && mInactiveSnapRectToCompare.isBottomSnapableForRight
+ || !mRectLieLeft && mInactiveSnapRectToCompare.isBottomSnapableForLeft) {
+ mBottomInRange = true;
+ }
+ }
+
+ //calculate the distance of inactive rect's top edge and container rect's top edge
+ qreal differenceContainerTopEdgeToInactiveRectTopEdge = mInactiveRectToCompare.top() - mContainerRect.top();
+ //calculate the distance of inactive rect's bottom edge and container rect's bottom edge
+ qreal differenceContainerBottomEdgeToInactiveRectBottomEdge = mContainerRect.bottom() - mInactiveRectToCompare.bottom();
+ qreal minDistancePosition = 0.0;
+ qreal distanceHorizontalEdges = 0.0;
+ qreal ySnapGapAdjustment = 0.0;
+
+ //If only one edge of inactive rect is in snappable range, save that position
+ if ((mTopInRange && !mBottomInRange)
+ || !mTopInRange && mBottomInRange) {
+ if (mTopInRange) {
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = bottomToTopOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ }
+ else {
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = bottomToBottomOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ }
+ }
+ //else both edges of inactive rect are in range, check which is a better fit
+ else if (mTopInRange && mBottomInRange) {
+ //if bottom edge of moving rect to the bottom of inactive rect is closer than the bottom edge of moving rect to the top of the inactive rect
+ if (bottomToBottomOfInactiveRect < bottomToTopOfInactiveRect ) {
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = bottomToBottomOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ mTopInRange = false;
+ }
+ //if bottom edge of moving rect to the bottom of inactive rect is at the same distance as the bottom edge of moving rect to the top of inactive rect
+ else if (bottomToBottomOfInactiveRect == bottomToTopOfInactiveRect) {
+ //if inactive rect lies towards the bottom of container rect, then the bottom edge is priortized as the selected edge for snapping
+ //This is done for outside snapping
+ if (differenceContainerBottomEdgeToInactiveRectBottomEdge < differenceContainerTopEdgeToInactiveRectTopEdge) {
+ minDistancePosition = mInactiveRectToCompare.bottom();
+ distanceHorizontalEdges = bottomToBottomOfInactiveRect;
+ ySnapGapAdjustment = 0.0;
+ mTopInRange = false;
+ }
+ //else top of the inactive rect lies more close to the top of the container rect or at the same distance, and hence prioritize it
+ else {
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = bottomToTopOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ mBottomInRange = false;
+ }
+ }
+ //else bottom edge of moving rect to the top of inactive rect is closer than the bottom edge of moving rect to the bottom of the inactive rect
+ else{
+ minDistancePosition = mInactiveRectToCompare.top();
+ distanceHorizontalEdges = bottomToTopOfInactiveRect;
+ ySnapGapAdjustment = mSnapGap;
+ mBottomInRange = false;
+ }
+ }
+
+ //Check if this inactive rect is better fit than the previous selected rect
+ bool verticalSnappingBetterFit = false;
+ if (mTopInRange || mBottomInRange) {
+ if (distanceHorizontalEdges < mMinHorizontalEdgesDistance) {
+ verticalSnappingBetterFit = true;
+ }
+ else if (distanceHorizontalEdges == mMinHorizontalEdgesDistance) { //the distance in the horizontal edge is same as from the selected rectangle
+ //check the position of rect with respect to horizontal line
+ checkInactiveRectPositionToHorizontalLine();
+ //if vertical snap was already found and the horizontal line of rect is in line with horizontal snap line
+ if (mVerticalSnapFound && mRectHorizontalEdgeLiesInLineWithHorizontalLine) {
+ if (mRectLieLeftOfHorizontalLine || mRectLiesRightOfHorizontalLine) {
+ extendHorizontalLineToIncludeInactiveRect();
+ }
+ }
+ else {
+ //Prioritize first on the fact if the inactive rect is closer to the moving rect in X - direction.
+ if (mHorizontalDistance < mHorizontalDistanceFromSelectedRect) {
+ verticalSnappingBetterFit = true;
+ }
+ else if (mHorizontalDistance == mHorizontalDistanceFromSelectedRect) {
+ //Prioritize next if this Inactive rect is closer to the bottom edge of the container rect, then the previously selected rect
+ if (differenceContainerBottomEdgeToInactiveRectBottomEdge < mContainerHorizontalEdgeDistance) {
+ verticalSnappingBetterFit = true;
+ }
+ //Prioritize next if the Inactive widget's bottom edge lies near to bottom edge of the container rect
+ else if (differenceContainerBottomEdgeToInactiveRectBottomEdge < differenceContainerTopEdgeToInactiveRectTopEdge) {
+ verticalSnappingBetterFit = true;
+ }
+ else {
+ //This else will happen if this rectangle being compared is exactly the same as the selected rectangle for snapping, or in opposite X direction.
+ //In that case it does not matter which is the selected rectangle. Hence we leave the already selected rectangle as the better fit.
+ }
+ }
+ }
+ }
+ }
+
+ if (verticalSnappingBetterFit) {
+ qreal proposedTopOfActiveRect = minDistancePosition - mActiveRectHeight - ySnapGapAdjustment;
+ if (qBound(mContainerRect.top(), proposedTopOfActiveRect, mContainerRect.bottom())
+ == proposedTopOfActiveRect) {
+ mVerticalSnapFound = true;
+ mVerticalSnapPosition = proposedTopOfActiveRect;
+ mMinHorizontalEdgesDistance = distanceHorizontalEdges;
+ mHorizontalDistanceFromSelectedRect = mHorizontalDistance;
+ //Save the new distance of the Selected Rectangle's bottom edge from Container's bottom edge
+ mContainerHorizontalEdgeDistance = differenceContainerBottomEdgeToInactiveRectBottomEdge;
+
+ if (mRectLieLeft) {
+ //save the points for the Horizontal line
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.left(), minDistancePosition));
+ mHorizontalLine.setP2(QPointF(mMovingRect.right(), minDistancePosition));
+ }
+ else {
+ //save the points for the Horizontal line
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.right(), minDistancePosition));
+ mHorizontalLine.setP2(QPointF(mMovingRect.left(), minDistancePosition));
+ }
+ }
+ }
+}
+
+/*!
+ Extend the Vertical line on both side of reference(snapping) rectancles.
+*/
+void HsSnapToLines::extendVerticalLine()
+{
+ if (mVerticalLine.y1() <= mVerticalLine.y2()) {
+ mVerticalLine.setP1(QPointF(mVerticalLine.x1(), mVerticalLine.y1() - SNAP_LINE_EXTEND_VALUE));
+ mVerticalLine.setP2(QPointF(mVerticalLine.x2(), mVerticalLine.y2() + SNAP_LINE_EXTEND_VALUE));
+ }
+ else {
+ mVerticalLine.setP1(QPointF(mVerticalLine.x1(), mVerticalLine.y1() + SNAP_LINE_EXTEND_VALUE));
+ mVerticalLine.setP2(QPointF(mVerticalLine.x2(), mVerticalLine.y2() - SNAP_LINE_EXTEND_VALUE));
+ }
+}
+
+/*!
+ Extend the Horizontal line on both side of reference(snapping) rectancles.
+*/
+void HsSnapToLines::extendHorizontalLine()
+{
+ if (mHorizontalLine.x1() <= mHorizontalLine.x2()) {
+ mHorizontalLine.setP1(QPointF(mHorizontalLine.x1() - SNAP_LINE_EXTEND_VALUE, mHorizontalLine.y1()));
+ mHorizontalLine.setP2(QPointF(mHorizontalLine.x2() + SNAP_LINE_EXTEND_VALUE, mHorizontalLine.y2()));
+ }
+ else {
+ mHorizontalLine.setP1(QPointF(mHorizontalLine.x1() + SNAP_LINE_EXTEND_VALUE, mHorizontalLine.y1()));
+ mHorizontalLine.setP2(QPointF(mHorizontalLine.x2() - SNAP_LINE_EXTEND_VALUE, mHorizontalLine.y2()));
+ }
+}
+
+/*!
+ Check if the Vertical edge of the Rectangle lies out of the Vertical line.
+ Also check if the rectangle's edge lies out of the line.
+*/
+void HsSnapToLines::checkInactiveRectPositionToVerticalLine()
+{
+ mRectVerticalEdgeLiesInLineWithVerticalLine = false;
+ mRectLieAboveVerticalLine = false;
+ mRectLieBelowVerticalLine = false;
+
+ //if rectangle vertical edge lies inline with Vertical line.
+ if ((mLeftInRange && mInactiveRectToCompare.left() == mVerticalLine.x1())
+ || (mRightInRange && mInactiveRectToCompare.right() == mVerticalLine.x1())) {
+ mRectVerticalEdgeLiesInLineWithVerticalLine = true;
+ //if the rectangle lies below the vertical line
+ if (mInactiveRectToCompare.bottom() > mVerticalLine.y1() && mInactiveRectToCompare.bottom() > mVerticalLine.y2()) {
+ mRectLieBelowVerticalLine = true;
+ }
+ //if the rectangle lies above the vertical line
+ if (mInactiveRectToCompare.top() < mVerticalLine.y1() && mInactiveRectToCompare.top() < mVerticalLine.y2()) {
+ mRectLieAboveVerticalLine = true;
+ }
+ }
+}
+
+/*!
+ Increase the Vertical line to include the inactive rect whose vertical edge is inline with vertical line
+*/
+void HsSnapToLines::extendVerticalLineToIncludeInactiveRect()
+{
+ if (mRectLieAboveVerticalLine) {
+ if (mVerticalLine.y1() < mVerticalLine.y2()) {
+ mVerticalLine.setP1(QPointF(mVerticalLine.x1(), mInactiveRectToCompare.top()));
+ }
+ else {
+ mVerticalLine.setP2(QPointF(mVerticalLine.x1(), mInactiveRectToCompare.top()));
+ }
+ }
+ if (mRectLieBelowVerticalLine) {
+ if (mVerticalLine.y1() < mVerticalLine.y2()) {
+ mVerticalLine.setP2(QPointF(mVerticalLine.x1(), mInactiveRectToCompare.bottom()));
+ }
+ else {
+ mVerticalLine.setP1(QPointF(mVerticalLine.x1(), mInactiveRectToCompare.bottom()));
+ }
+ }
+}
+
+/*!
+ Check if the Horizontal edge of the Rectangle lies inline with the Horizontal line.
+ Also check if the rectangle's edge lies out of the line.
+*/
+void HsSnapToLines::checkInactiveRectPositionToHorizontalLine()
+{
+ mRectHorizontalEdgeLiesInLineWithHorizontalLine = false;
+ mRectLieLeftOfHorizontalLine = false;
+ mRectLiesRightOfHorizontalLine = false;
+
+ //if rectangle horizontal edge lies inline with Horizontal line.
+ if ((mTopInRange && mInactiveRectToCompare.top() == mHorizontalLine.y1())
+ || (mBottomInRange && mInactiveRectToCompare.bottom() == mHorizontalLine.y1())) {
+ mRectHorizontalEdgeLiesInLineWithHorizontalLine = true;
+ //if the rectangle lies left of the horizontal line
+ if (mInactiveRectToCompare.left() < mHorizontalLine.x1() && mInactiveRectToCompare.left() < mHorizontalLine.x2()) {
+ mRectLieLeftOfHorizontalLine = true;
+ }
+ //if the rectangle lies right of the horizontal line
+ if (mInactiveRectToCompare.right() > mHorizontalLine.x1() && mInactiveRectToCompare.right() > mHorizontalLine.x2()) {
+ mRectLiesRightOfHorizontalLine = true;
+ }
+ }
+}
+
+/*!
+ Increase the Horizontal line to include the inactive rect whose horizontal edge is inline with horizontal line
+*/
+void HsSnapToLines::extendHorizontalLineToIncludeInactiveRect()
+{
+ if (mRectLieLeftOfHorizontalLine) {
+ if (mHorizontalLine.x1() < mHorizontalLine.x2()) {
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.left(), mHorizontalLine.y1()));
+ }
+ else {
+ mHorizontalLine.setP2(QPointF(mInactiveRectToCompare.left(), mHorizontalLine.y1()));
+ }
+ }
+ if (mRectLiesRightOfHorizontalLine) {
+ if (mHorizontalLine.x1() < mHorizontalLine.x2()) {
+ mHorizontalLine.setP2(QPointF(mInactiveRectToCompare.right(), mHorizontalLine.y1()));
+ }
+ else {
+ mHorizontalLine.setP1(QPointF(mInactiveRectToCompare.right(), mHorizontalLine.y1()));
+ }
+ }
+}