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117 lines
3 KiB
C++
117 lines
3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "divetextitem.h"
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#include "profilewidget2.h"
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#include "core/color.h"
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#include "core/dive.h"
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#include <QBrush>
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#include <QDebug>
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#include <QApplication>
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DiveTextItem::DiveTextItem(QGraphicsItem *parent) : QGraphicsItemGroup(parent),
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internalAlignFlags(Qt::AlignHCenter | Qt::AlignVCenter),
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textBackgroundItem(new QGraphicsPathItem(this)),
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textItem(new QGraphicsPathItem(this)),
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printScale(1.0),
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scale(1.0),
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connected(false)
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{
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setFlag(ItemIgnoresTransformations);
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textBackgroundItem->setBrush(QBrush(getColor(TEXT_BACKGROUND)));
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textBackgroundItem->setPen(Qt::NoPen);
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textItem->setPen(Qt::NoPen);
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}
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void DiveTextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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updateText();
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QGraphicsItemGroup::paint(painter, option, widget);
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}
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void DiveTextItem::fontPrintScaleUpdate(double scale)
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{
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printScale = scale;
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}
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void DiveTextItem::setAlignment(int alignFlags)
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{
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if (alignFlags != internalAlignFlags) {
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internalAlignFlags = alignFlags;
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}
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}
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void DiveTextItem::setBrush(const QBrush &b)
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{
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textItem->setBrush(b);
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}
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void DiveTextItem::setScale(double newscale)
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{
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if (scale != newscale) {
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scale = newscale;
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}
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}
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void DiveTextItem::setText(const QString &t)
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{
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if (internalText != t) {
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if (!connected) {
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if (scene()) {
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// by now we should be on a scene. grab the profile widget from it and setup our printScale
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// and connect to the signal that makes sure we keep track if that changes
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ProfileWidget2 *profile = qobject_cast<ProfileWidget2 *>(scene()->views().first());
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connect(profile, SIGNAL(fontPrintScaleChanged(double)), this, SLOT(fontPrintScaleUpdate(double)), Qt::UniqueConnection);
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fontPrintScaleUpdate(profile->getFontPrintScale());
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connected = true;
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} else {
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if (verbose)
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qDebug() << "called before scene was set up" << t;
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}
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}
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internalText = t;
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updateText();
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}
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}
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const QString &DiveTextItem::text()
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{
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return internalText;
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}
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void DiveTextItem::updateText()
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{
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double size;
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if (internalText.isEmpty()) {
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return;
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}
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QFont fnt(qApp->font());
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if ((size = fnt.pixelSize()) > 0) {
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// set in pixels - so the scale factor may not make a difference if it's too close to 1
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size *= scale * printScale;
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fnt.setPixelSize(lrint(size));
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} else {
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size = fnt.pointSizeF();
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size *= scale * printScale;
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fnt.setPointSizeF(size);
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}
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QFontMetrics fm(fnt);
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QPainterPath textPath;
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qreal xPos = 0, yPos = 0;
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QRectF rect = fm.boundingRect(internalText);
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yPos = (internalAlignFlags & Qt::AlignTop) ? 0 :
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(internalAlignFlags & Qt::AlignBottom) ? +rect.height() :
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/*(internalAlignFlags & Qt::AlignVCenter ? */ +rect.height() / 4;
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xPos = (internalAlignFlags & Qt::AlignLeft) ? -rect.width() :
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(internalAlignFlags & Qt::AlignHCenter) ? -rect.width() / 2 :
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/* (internalAlignFlags & Qt::AlignRight) */ 0;
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textPath.addText(xPos, yPos, fnt, internalText);
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QPainterPathStroker stroker;
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stroker.setWidth(3);
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textBackgroundItem->setPath(stroker.createStroke(textPath));
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textItem->setPath(textPath);
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}
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