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Qet shape item : rectangle and ellipse can be resized by the edges

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4055 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
blacksun
2015-07-19 15:52:44 +00:00
parent e953459e90
commit d55508df05
4 changed files with 82 additions and 52 deletions
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71
sources/QetGraphicsItemModeler/qetgraphicshandlerutility.cpp
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@@ -29,12 +29,12 @@ QetGraphicsHandlerUtility::QetGraphicsHandlerUtility(qreal size) :
{}
/**
* @brief QetGraphicsHandlerUtility::DrawHandler
* @brief QetGraphicsHandlerUtility::drawHandler
* Draw the handler at pos @point, using the QPainter @painter.
* @param painter : painter to use for drawing the handler
* @param point : point to draw the handler
*/
void QetGraphicsHandlerUtility::DrawHandler(QPainter *painter, const QPointF &point, bool color2)
void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point, bool color2)
{
//Color of handler
QColor inner(0xFF, 0xFF, 0xFF);
@@ -53,6 +53,18 @@ void QetGraphicsHandlerUtility::DrawHandler(QPainter *painter, const QPointF &po
painter->restore();
}
/**
* @brief QetGraphicsHandlerUtility::drawHandler
* Conveniance method for void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QPointF &point, bool color2)
* @param painter
* @param points
* @param color2
*/
void QetGraphicsHandlerUtility::drawHandler(QPainter *painter, const QVector<QPointF> &points, bool color2) {
foreach(QPointF point, points)
drawHandler(painter, point, color2);
}
/**
* @brief QetGraphicsHandlerUtility::pointIsInHandler
* @param point : point to compare
@@ -109,15 +121,62 @@ QRectF QetGraphicsHandlerUtility::getRect(const QPointF &point) const
/**
* @brief QetGraphicsHandlerUtility::pointsForRect
* Return the point of the rect in vector.
* The point are stored like this :
* top left, top right, bottom left, bottom right;
* Return the keys points of the rectangle, stored in a vector.
* The points in the vector are stored like this :
* **********
* 0---1---2
* | |
* 3 4
* | |
* 5---6---7
* ************
* @param rect
* @return
*/
QVector<QPointF> QetGraphicsHandlerUtility::pointsForRect(const QRectF &rect)
{
QVector<QPointF> vector;
vector << rect.topLeft() << rect.topRight() << rect.bottomLeft() << rect.bottomRight();
QPointF point;
vector << rect.topLeft();//*****Top left
point = rect.center();
point.setY(rect.top());
vector << point;//**************Middle top
vector << rect.topRight();//****Top right
point = rect.center();
point.setX(rect.left());
vector << point;//**************Middle left
point.setX(rect.right());
vector << point;//**************Middle right
vector << rect.bottomLeft();//**Bottom left
point = rect.center();
point.setY(rect.bottom());
vector << point;//*************Middle bottom
vector << rect.bottomRight();//*Bottom right
return vector;
}
/**
* @brief QetGraphicsHandlerUtility::rectForPosAtIndex
* Return a rectangle after modification of the point '@pos' at index '@index' of original rectangle '@old_rect'.
* @param old_rect - the rectangle befor modification
* @param pos - the new position of a key point
* @param index - the index of the key point to modifie see QetGraphicsHandlerUtility::pointsForRect to know
* the index of each keys points of a rectangle)
* @return : the rectangle with modification. If index is lower than 0 or higher than 7, this method return old_rect.
*/
QRectF QetGraphicsHandlerUtility::rectForPosAtIndex(const QRectF &old_rect, const QPointF &pos, int index)
{
if (index < 0 || index > 7) return old_rect;
QRectF rect = old_rect;
if (index == 0) rect.setTopLeft(pos);
else if (index == 1) rect.setTop(pos.y());
else if (index == 2) rect.setTopRight(pos);
else if (index == 3) rect.setLeft(pos.x());
else if (index == 4) rect.setRight(pos.x());
else if (index == 5) rect.setBottomLeft(pos);
else if (index == 6) rect.setBottom(pos.y());
else if (index == 7) rect.setBottomRight(pos);
return rect;
}