subsurface/qt-ui/profile/divetextitem.cpp
Dirk Hohndel 980737221d New Profile: make axis labels smaller
Previously all text in the new profile was deawn in the same font. With
this change the labels on all axes are smaller.
It might be even better to allow per-axis configuration of the label size
as along the time axis the bigger size looked better. But especially for
partial pressures this looks much better.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2014-02-15 07:06:09 -08:00

105 lines
2.3 KiB
C++

#include "divetextitem.h"
#include "animationfunctions.h"
#include <QPropertyAnimation>
#include <QApplication>
#include <QFont>
#include <QFontMetrics>
#include <QBrush>
#include <QPen>
#include <QDebug>
DiveTextItem::DiveTextItem(QGraphicsItem* parent): QGraphicsItemGroup(parent),
internalAlignFlags(Qt::AlignHCenter | Qt::AlignVCenter),
textBackgroundItem(NULL),
textItem(NULL),
colorIndex(SAC_DEFAULT),
scale(1.0)
{
setFlag(ItemIgnoresTransformations);
}
void DiveTextItem::setAlignment(int alignFlags)
{
internalAlignFlags = alignFlags;
updateText();
}
void DiveTextItem::setBrush(const QBrush& b)
{
brush = b;
updateText();
}
void DiveTextItem::setScale(double newscale)
{
scale = newscale;
}
void DiveTextItem::setText(const QString& t)
{
internalText = t;
updateText();
}
const QString& DiveTextItem::text()
{
return internalText;
}
void DiveTextItem::updateText()
{
double size;
delete textItem;
textItem = NULL;
delete textBackgroundItem;
textBackgroundItem = NULL;
if(internalText.isEmpty()){
return;
}
QFont fnt(qApp->font());
if ((size = fnt.pixelSize()) > 0) {
// set in pixels - so the scale factor may not make a difference if it's too close to 1
size *= scale;
fnt.setPixelSize(size);
} else {
size = fnt.pointSizeF();
size *= scale;
fnt.setPointSizeF(size);
}
QFontMetrics fm(fnt);
QPainterPath textPath;
qreal xPos = 0, yPos = 0;
QRectF rect = fm.boundingRect(internalText);
yPos = (internalAlignFlags & Qt::AlignTop) ? 0 :
(internalAlignFlags & Qt::AlignBottom) ? +rect.height() :
/*(internalAlignFlags & Qt::AlignVCenter ? */ +rect.height() / 4;
xPos = (internalAlignFlags & Qt::AlignLeft ) ? -rect.width() :
(internalAlignFlags & Qt::AlignHCenter) ? -rect.width()/2 :
/* (internalAlignFlags & Qt::AlignRight) */ 0;
textPath.addText( xPos, yPos, fnt, internalText);
QPainterPathStroker stroker;
stroker.setWidth(3);
textBackgroundItem = new QGraphicsPathItem(stroker.createStroke(textPath), this);
textBackgroundItem->setBrush(QBrush(getColor(TEXT_BACKGROUND)));
textBackgroundItem->setPen(Qt::NoPen);
textItem = new QGraphicsPathItem(textPath, this);
textItem->setBrush(brush);
textItem->setPen(Qt::NoPen);
}
void DiveTextItem::animatedHide()
{
Animations::hide(this);
}
void DiveTextItem::animateMoveTo(qreal x, qreal y)
{
Animations::moveTo(this, x, y);
}