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64aace63f0
We really shouldn't need to connect to the MainWindow in order to get the right scale for the fonts when printing. While printing likely will remain a desktop only function, this is just bad design. And making calls like this from the paint() function is a bad plan, anyway. So instead we make sure that every DiveTextItem knows what the printScale was when it was created (or actually, when the text was first set as they frequently get created before we have a scene which we use to get to the profile), and gets updated whenever that scale changes. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
#include "divetextitem.h"
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#include "mainwindow.h"
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#include "profilewidget2.h"
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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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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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}
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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(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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