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Fix marble losting track of zoom level

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Marble had a bug on the way it treats zoom level, there's
no way for it to find out if it's user-input or algorithm input
and when a user clicks on a dive, it spins and centers on it,
but if the user clicks on another dive when it's still spinning,
it will get the zoom in the actual state ( spinning, usually zoom
is far away from the first position ) and continue the spin to the
other position.

This patch works by saving the first location and triggering a
helper function with a timer that will only update the zoom level
if the timer is not active ( and thus, will not get the bugged
zoom state set by the animation. ).

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2013-10-17 14:53:12 -07:00
parent 579d1cb915
commit 8f623c2c72
2 changed files with 22 additions and 3 deletions
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16
qt-ui/globe.cpp
View file

@ -7,6 +7,7 @@
#include "../helpers.h"
#include <QDebug>
#include <QTimer>
#include <marble/AbstractFloatItem.h>
#include <marble/GeoDataPlacemark.h>
@ -63,6 +64,9 @@ GlobeGPS::GlobeGPS(QWidget* parent) : MarbleWidget(parent), loadedDives(0)
setMinimumHeight(0);
setMinimumWidth(0);
editingDiveCoords = 0;
fixZoomTimer = new QTimer();
connect(fixZoomTimer, SIGNAL(timeout()), this, SLOT(fixZoom()));
fixZoomTimer->setSingleShot(true);
}
void GlobeGPS::mouseClicked(qreal lon, qreal lat, GeoDataCoordinates::Unit unit)
@ -178,9 +182,21 @@ void GlobeGPS::centerOn(dive* dive)
if (!zoom())
zoomView(zoomFromDistance(3));
if (!fixZoomTimer->isActive())
currentZoomLevel = zoom();
// From the marble source code, the maximum time of
// 'spin and fit' is 2 seconds, so wait a bit them zoom again.
fixZoomTimer->start(2100);
centerOn(longitude,latitude, true);
}
void GlobeGPS::fixZoom()
{
zoomView(currentZoomLevel, Marble::Linear);
}
void GlobeGPS::prepareForGetDiveCoordinates(dive* dive)
{
if (!messageWidget->isVisible()) {

9
qt-ui/globe.h
View file

@ -13,25 +13,28 @@ struct dive;
class GlobeGPS : public MarbleWidget{
Q_OBJECT
void prepareForGetDiveCoordinates(struct dive* dive);
public:
using MarbleWidget::centerOn;
GlobeGPS(QWidget *parent);
void reload();
void centerOn(struct dive* dive);
void resizeEvent(QResizeEvent *event);
protected:
virtual void mousePressEvent(QMouseEvent* event);
/* reimp */ void resizeEvent(QResizeEvent *event);
/* reimp */ void mousePressEvent(QMouseEvent* event);
private:
void prepareForGetDiveCoordinates(struct dive* dive);
GeoDataDocument *loadedDives;
struct dive* editingDiveCoords;
KMessageWidget* messageWidget;
QTimer *fixZoomTimer;
int currentZoomLevel;
public slots:
void changeDiveGeoPosition(qreal lon,qreal lat,GeoDataCoordinates::Unit);
void mouseClicked(qreal lon, qreal lat, GeoDataCoordinates::Unit);
void fixZoom();
};
#endif