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Conductor : improve text position

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3333 bfdf4180-ca20-0410-9c96-a3a8aa849046
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blacksun
2014-09-26 08:48:55 +00:00
parent 016f24dcda
commit cfde3232eb
2 changed files with 63 additions and 11 deletions
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73
sources/qetgraphicsitem/conductor.cpp
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@@ -1125,29 +1125,80 @@ ConductorSegment *Conductor::middleSegment() {
}
/**
Positionne le texte du conducteur au milieu du segment qui contient le
point au milieu du conducteur
@see middleSegment()
*/
* @brief Conductor::posForText
* Calculate and return the better pos for text.
* @param flag : flag is used to know if text pos is near of
* a vertical or horizontal conductor segment.
*/
QPointF Conductor::posForText(Qt::Orientations &flag) {
ConductorSegment *segment = segments;
//Go to first segement
while (!segment->isFirstSegment()) {
segment = segment->previousSegment();
}
QPointF p1 = segment -> firstPoint(); //<First point of conductor
ConductorSegment *biggest_segment = segment; //<biggest segment: contain the longest segment of conductor.
while (segment -> hasNextSegment()) {
segment = segment -> nextSegment();
if (segment -> length() > biggest_segment -> length())
biggest_segment = segment;
}
QPointF p2 = segment -> secondPoint();//<Last point of conductor
//If the conductor is horizontal or vertical
//Return the point at the middle of conductor
if (p1.x() == p2.x()) { //<Vertical
flag = Qt::Vertical;
if (p1.y() > p2.y()) {
p1.setY(p1.y() - (length()/2));
} else {
p1.setY(p1.y() + (length()/2));
}
} else if (p1.y() == p2.y()) { //<Horizontal
flag = Qt::Horizontal;
if (p1.x() > p2.x()) {
p1.setX(p1.x() - (length()/2));
} else {
p1.setX(p1.x() + (length()/2));
}
} else { //Return the point at the middle of biggest segment.
p1 = biggest_segment->middle();
flag = (biggest_segment->isHorizontal())? Qt::Horizontal : Qt::Vertical;
}
return p1;
}
/**
* @brief Conductor::calculateTextItemPosition
* Move the text at middle of conductor (if is vertical or horizontal)
* otherwise, move conductor at the middle of the longest segment of conductor.
* If text was moved by user, this function do nothing, except check if text is near conductor.
*/
void Conductor::calculateTextItemPosition() {
if (!text_item) return;
//position
if (text_item -> wasMovedByUser()) {
// le champ de texte a ete deplace par l'utilisateur :
// on verifie qu'il est encore a proximite du conducteur
//Text field was moved by user :
//we check if text field is yet near the conductor
QPointF text_item_pos = text_item -> pos();
QPainterPath near_shape = nearShape();
if (!near_shape.contains(text_item_pos)) {
text_item -> setPos(movePointIntoPolygon(text_item_pos, near_shape));
}
} else {
// positionnement automatique basique
text_item -> setPos(middleSegment() -> middle());
//rotation
//Position of text is calculated and also is rotation
Qt::Orientations rotation;
text_item -> setPos(posForText(rotation));
if (!text_item -> wasRotateByUser()) {
middleSegment() -> isVertical()? text_item -> setRotationAngle(properties_.verti_rotate_text):
text_item -> setRotationAngle(properties_.horiz_rotate_text);
rotation == Qt::Vertical ? text_item -> setRotationAngle(properties_.verti_rotate_text):
text_item -> setRotationAngle(properties_.horiz_rotate_text);
}
}
}