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Added startUserTransformation() and handleUserTransformation() methods to the CustomElementPart class and all of its subclasses.

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2026 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
xavier
2013-02-08 22:05:12 +00:00
parent c2b69dd6da
commit 73fa01c7b9
20 changed files with 269 additions and 0 deletions
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25
sources/editor/parttextfield.cpp
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@@ -268,6 +268,31 @@ bool PartTextField::isUseless() const {
return(false);
}
/**
Start the user-induced transformation, provided this primitive is contained
within the \a initial_selection_rect bounding rectangle.
*/
void PartTextField::startUserTransformation(const QRectF &initial_selection_rect) {
Q_UNUSED(initial_selection_rect)
saved_point_ = pos(); // scene coordinates, no need to mapFromScene()
saved_font_size_ = font().pointSize();
}
/**
Handle the user-induced transformation from \a initial_selection_rect to \a new_selection_rect
*/
void PartTextField::handleUserTransformation(const QRectF &initial_selection_rect, const QRectF &new_selection_rect) {
// let's try the naive approach
QPointF new_pos = mapPoints(initial_selection_rect, new_selection_rect, QList<QPointF>() << saved_point_).first();
setPos(new_pos);
// adjust the font size following the smallest scale factor
qreal sx = new_selection_rect.width() / initial_selection_rect.width();
qreal sy = new_selection_rect.height() / initial_selection_rect.height();
qreal smallest_scale_factor = sx > sy ? sy : sx;
qreal new_font_size = saved_font_size_ * smallest_scale_factor;
setProperty("size", qMax(1, qRound(new_font_size)));
}
/**
Dessine le texte statique.
@param painter QPainter a utiliser pour effectuer le rendu