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simple element : comment is snapped and centered to the bottom of text tagged "label"

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3432 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
blacksun
2014-11-02 14:12:38 +00:00
parent 305b8845cc
commit 822da4fe66
5 changed files with 161 additions and 58 deletions
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84
sources/qetgraphicsitem/commentitem.cpp
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@@ -19,6 +19,8 @@
#include "element.h"
#include "qetapp.h"
#include "diagram.h"
#include "elementtextitem.h"
#include "qgraphicsitemutility.h"
#include <QPainter>
/**
@@ -27,13 +29,17 @@
* element is also the parent item of this item
*/
CommentItem::CommentItem(Element *elmt) :
QGraphicsObject(elmt),
m_element (elmt)
QGraphicsObject (elmt),
m_element (elmt),
m_text_parent (false)
{
updateLabel();
connect(elmt, SIGNAL(yChanged()), this, SLOT (autoPos()));
connect(elmt, SIGNAL(rotationChanged()), this, SLOT (autoPos()));
if (! setTextParent() ) {
connect(elmt, SIGNAL(yChanged()), this, SLOT (autoPos()));
connect(elmt, SIGNAL(rotationChanged()), this, SLOT (autoPos()));
}
connect(elmt, SIGNAL(elementInfoChange(DiagramContext)), this, SLOT (updateLabel()));
updateLabel();
}
/**
@@ -49,21 +55,10 @@ QRectF CommentItem::boundingRect() const {
* Adjust the position of this item.
*/
void CommentItem::autoPos() {
if(!m_element -> diagram()) return;
QRectF border = m_element -> diagram() -> border();
QPointF point = m_element -> sceneBoundingRect().center();
point.setY(border.height() - m_element -> diagram() -> border_and_titleblock.titleBlockHeight() - boundingRect().height());
point.rx() -= (m_bounding_rect.width()/2 + m_bounding_rect.left()); //< we add boundingrect.left because this value can be négative
setPos(0,0); //Due to a weird behavior or bug, before set the new position and rotation,
setRotation(0); //we must to set the position and rotation at 0.
setPos(mapFromScene(point));
if (rotation() != - m_element -> rotation()) {
setRotation(0);
setRotation(- m_element -> rotation());
}
if (m_text_parent)
centerToParentBottom(this);
else
centerToBottomDiagram(this, m_element);
}
/**
@@ -87,6 +82,24 @@ void CommentItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
m_element -> editProperty();
}
/**
* @brief CommentItem::setTextParent
* Set text tagged "label" of element has parent.
* @return true if text has been set has parent.
* else return false, the element is the parent of this comment item
*/
bool CommentItem::setTextParent() {
if (ElementTextItem *eti = m_element->taggedText("label")) {
setParentItem(eti);
m_text_parent = true;
return true;
}
qDebug() << "Comment item: can't found text tagged 'label' from actual parent element to set has parent, "
"comment will be displayed at bottom of diagram";
return false;
}
/**
* @brief CommentItem::updateLabel
* update the content of this item
@@ -94,29 +107,30 @@ void CommentItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
*/
void CommentItem::updateLabel() {
QString comment = m_element -> elementInformations()["comment"].toString();
bool show = m_element -> elementInformations().keyMustShow("comment");
if (comment == m_comment && show == m_show) return;
if (comment == m_comment && !m_text_parent) return;
m_comment = comment;
m_show = show;
if (comment != m_comment) {
QPen pen(Qt::black);
pen.setWidthF (0.5);
m_comment = comment;
QPainter painter(&m_picture);
painter.setPen (pen);
painter.setFont (QETApp::diagramTextsFont(6));
QPen pen(Qt::black);
pen.setWidthF (0.5);
QRectF drawing_rect(QPointF(0,0), QSizeF(100, 100));
QRectF text_bounding;
QPainter painter(&m_picture);
painter.setPen (pen);
painter.setFont (QETApp::diagramTextsFont(6));
painter.drawText(drawing_rect, Qt::TextWordWrap | Qt::AlignHCenter, m_comment, &text_bounding);
QRectF drawing_rect(QPointF(0,0), QSizeF(100, 100));
QRectF text_bounding;
text_bounding.adjust(-1,0,1,0); //adjust only for better visual
painter.drawRoundedRect(text_bounding, 2, 2);
painter.drawText(drawing_rect, Qt::TextWordWrap | Qt::AlignHCenter, m_comment, &text_bounding);
m_bounding_rect = text_bounding;
text_bounding.adjust(-1,0,1,0); //adjust only for better visual
painter.drawRoundedRect(text_bounding, 2, 2);
m_bounding_rect = text_bounding;
}
autoPos();
}