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https://github.com/qelectrotech/qelectrotech-source-mirror.git
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b025830100
The rectangle is now adjusted to the size of the comment. git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4082 bfdf4180-ca20-0410-9c96-a3a8aa849046
138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
/*
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Copyright 2006-2015 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "commentitem.h"
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#include "element.h"
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#include "qetapp.h"
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#include "diagram.h"
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#include "elementtextitem.h"
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#include "qgraphicsitemutility.h"
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#include <QPainter>
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/**
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* @brief CommentItem::CommentItem
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* @param elmt : the element to display comment,
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* element is also the parent item of this item
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*/
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CommentItem::CommentItem(Element *elmt) :
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QGraphicsObject (elmt),
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m_element (elmt),
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m_text_parent (false)
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{
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if (! setTextParent() ) {
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connect(elmt, SIGNAL(yChanged()), this, SLOT (autoPos()));
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connect(elmt, SIGNAL(rotationChanged()), this, SLOT (autoPos()));
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}
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connect(elmt, SIGNAL(elementInfoChange(DiagramContext,DiagramContext)), this, SLOT (updateLabel()));
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updateLabel();
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}
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/**
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* @brief CommentItem::boundingRect
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* @return the bounding rect of this item
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*/
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QRectF CommentItem::boundingRect() const {
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return m_bounding_rect;
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}
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/**
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* @brief CommentItem::autoPos
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* Adjust the position of this item.
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*/
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void CommentItem::autoPos() {
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if (m_text_parent)
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centerToParentBottom(this);
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else
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centerToBottomDiagram(this, m_element);
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}
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/**
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* @brief CommentItem::paint
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* Paint this item
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* @param painter
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* @param option
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* @param widget
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*/
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void CommentItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
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Q_UNUSED(option); Q_UNUSED(widget);
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m_picture.play(painter);
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}
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/**
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* @brief CommentItem::mouseDoubleClickEvent
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* @param event
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*/
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void CommentItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
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event -> accept();
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m_element -> editProperty();
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}
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/**
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* @brief CommentItem::setTextParent
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* Set text tagged "label" of element has parent.
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* @return true if text has been set has parent.
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* else return false, the element is the parent of this comment item
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*/
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bool CommentItem::setTextParent() {
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if (ElementTextItem *eti = m_element->taggedText("label")) {
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setParentItem(eti);
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m_text_parent = true;
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return true;
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}
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qDebug() << "Comment item: can't found text tagged 'label' from actual parent element to set has parent, "
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"comment will be displayed at bottom of diagram";
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return false;
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}
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/**
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* @brief CommentItem::updateLabel
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* update the content of this item
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* (draw this item in a QPicture)
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*/
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void CommentItem::updateLabel()
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{
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QString comment = m_element -> elementInformations()["comment"].toString();
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if (comment == m_comment && !m_text_parent) return;
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if (comment != m_comment)
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{
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m_comment = comment;
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QPen pen(Qt::black);
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pen.setWidthF (0.5);
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QPainter painter(&m_picture);
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painter.setPen (pen);
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painter.setFont (QETApp::diagramTextsFont(6));
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QRectF text_bounding = painter.boundingRect(QRectF(QPointF(0,0), QSizeF(70, 1)), Qt::TextWordWrap | Qt::AlignHCenter, m_comment);
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painter.drawText(text_bounding, Qt::TextWordWrap | Qt::AlignHCenter, m_comment);
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text_bounding.adjust(-1,0,1,0); //adjust only for better visual
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painter.drawRoundedRect(text_bounding, 2, 2);
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prepareGeometryChange();
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m_bounding_rect = text_bounding;
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}
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autoPos();
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}
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