mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
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780c039b31
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3407 bfdf4180-ca20-0410-9c96-a3a8aa849046
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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Copyright 2006-2014 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 <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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{
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updateLabel();
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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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connect(elmt, SIGNAL(elementInfoChange(DiagramContext)), this, SLOT (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_element -> diagram()) return;
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QRectF border = m_element -> diagram() -> border();
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QPointF point = m_element -> sceneBoundingRect().center();
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point.setY(border.height() - m_element -> diagram() -> border_and_titleblock.titleBlockHeight() - boundingRect().height());
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point.rx() -= (m_bounding_rect.width()/2 + m_bounding_rect.left()); //< we add boundingrect.left because this value can be négative
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setPos(0,0); //Due to a weird behavior or bug, before set the new position and rotation,
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setRotation(0); //we must to set the position and rotation at 0.
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setPos(mapFromScene(point));
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if (rotation() != - m_element -> rotation()) {
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setRotation(0);
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setRotation(- m_element -> rotation());
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}
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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::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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QString comment = m_element -> elementInformations()["comment"].toString();
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bool show = m_element -> elementInformations().keyMustShow("comment");
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if (comment == m_comment && show == m_show) return;
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m_comment = comment;
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m_show = show;
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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 drawing_rect(QPointF(0,0), QSizeF(100, 100));
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QRectF text_bounding;
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painter.drawText(drawing_rect, Qt::TextWordWrap | Qt::AlignHCenter, m_comment, &text_bounding);
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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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m_bounding_rect = text_bounding;
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autoPos();
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}
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