subsurface/qt-mobile/qmlprofile.cpp
Dirk Hohndel 464b88f01f QML UI: yet another attempt to fix the profile scaling
This one appears to work in my testing so far. And reading the code it
seems to make sense. We look at the size that the widget thinks it is. And
we scale the scene to fill that size (including a margin). And then let Qt
and QML deal with the rest of it. Assuming this works it shows that we
have been trying too hard all this time.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-01-18 12:32:47 -08:00

69 lines
1.6 KiB
C++

#include "qmlprofile.h"
#include "profile-widget/profilewidget2.h"
#include "subsurface-core/dive.h"
#include <QTransform>
QMLProfile::QMLProfile(QQuickItem *parent) :
QQuickPaintedItem(parent),
m_margin(0)
{
setAntialiasing(true);
m_profileWidget = new ProfileWidget2(0);
m_profileWidget->setProfileState();
m_profileWidget->setPrintMode(true);
m_profileWidget->setFontPrintScale(0.8);
//m_profileWidget->setGeometry(this->geometry());
}
QMLProfile::~QMLProfile()
{
m_profileWidget->deleteLater();
}
void QMLProfile::paint(QPainter *painter)
{
// let's look at the intended size of the content and scale our scene accordingly
QRect rect = m_profileWidget->contentsRect();
qreal sceneSize = 104; // that should give us 2% margin all around (100x100 scene)
qreal sx = rect.width() / sceneSize;
qreal sy = rect.height() / sceneSize;
QTransform profileTransform;
profileTransform.scale(sx, sy);
m_profileWidget->setTransform(profileTransform);
m_profileWidget->render(painter);
}
void QMLProfile::setMargin(int margin)
{
m_margin = margin;
}
QString QMLProfile::diveId() const
{
return m_diveId;
}
void QMLProfile::setDiveId(const QString &diveId)
{
m_diveId = diveId;
struct dive *d = get_dive_by_uniq_id(m_diveId.toInt());
if (m_diveId.toInt() < 1)
return;
if (!d)
return;
qDebug() << "setDiveId called with valid dive" << d->number;
m_profileWidget->plotDive(d);
}
qreal QMLProfile::devicePixelRatio() const
{
return m_devicePixelRatio;
}
void QMLProfile::setDevicePixelRatio(qreal dpr)
{
if (dpr != m_devicePixelRatio) {
m_devicePixelRatio = dpr;
emit devicePixelRatioChanged();
}
}