1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtLocation module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativegeomapitem_p.h"
#include "qdeclarativecoordinate_p.h"
#include <QtDeclarative/qdeclarativeinfo.h>
#ifndef QSGSHADEREFFECTSOURCE_AVAILABLE
#else
#include <QDebug>
QT_BEGIN_NAMESPACE
/*!
\qmlclass MapItem
The MapItem element is part of the \bold{Qt.location 5.0} module.
*/
QDeclarativeGeoMapItem::QDeclarativeGeoMapItem(QSGItem *parent)
: QSGShaderEffectSource(parent),
sourceItem_(0),
coordinate_(0),
map_(0),
componentCompleted_(false)
{
connect(this, SIGNAL(sourceItemChanged()), this, SIGNAL(sourceChanged()));
connect(this->textureProvider(), SIGNAL(textureChanged()), this, SLOT(textureChangedSlot()));
}
QDeclarativeGeoMapItem::~QDeclarativeGeoMapItem()
{
// Remove this item from map if it still exists (qpointer protection todo).
if (map_)
map_->removeMapItem(this);
}
void QDeclarativeGeoMapItem::textureChangedSlot()
{
if (!textureProvider()->texture()) {
mapItem_.setTextureId(0); // invalidate
return;
}
mapItem_.setTextureId(textureProvider()->texture()->textureId());
mapItem_.setSize(textureProvider()->texture()->textureSize());
}
MapItem* QDeclarativeGeoMapItem::mapItem()
{
return &mapItem_;
}
void QDeclarativeGeoMapItem::setZoomLevel(double zoom)
{
if (zoom == mapItem_.zoom())
return;
mapItem_.setZoom(zoom);
emit zoomLevelChanged();
}
double QDeclarativeGeoMapItem::zoomLevel()
{
return mapItem_.zoom();
}
bool QDeclarativeGeoMapItem::hasValidTexture()
{
if (mapItem_.textureId())
return true;
return false;
}
void QDeclarativeGeoMapItem::setCoordinate(QDeclarativeCoordinate *coordinate)
{
if (coordinate_ == coordinate)
return;
if (coordinate_) {
coordinate_->disconnect(this);
}
coordinate_ = coordinate;
if (coordinate_) {
connect(coordinate_,
SIGNAL(latitudeChanged(double)),
this,
SLOT(coordinateCoordinateChanged(double)));
connect(coordinate_,
SIGNAL(longitudeChanged(double)),
this,
SLOT(coordinateCoordinateChanged(double)));
connect(coordinate_,
SIGNAL(altitudeChanged(double)),
this,
SLOT(coordinateCoordinateChanged(double)));
mapItem_.setCoordinate(coordinate->coordinate());
} else {
mapItem_.setCoordinate(QGeoCoordinate());
}
emit coordinateChanged();
}
void QDeclarativeGeoMapItem::setMap(QDeclarative3DGraphicsGeoMap* map)
{
if (map == map_) {
return;
}
map_ = map;
if (!map_) {
// todo we may want to set parent item as zero too
setSourceItem(0);
mapItem_.setTextureId(0); // invalidate
} else {
// Essential to QSG -parent ourselves - it glues us to QSG tree and
// essentially enables rendering. This is particularly important to
// do manually when instantiating items from models.
setParent(map_);
setParentItem(map_);
setSourceItem(sourceItem_);
}
}
void QDeclarativeGeoMapItem::coordinateCoordinateChanged(double)
{
mapItem_.setCoordinate(coordinate_->coordinate());
emit coordinateChanged();
}
void QDeclarativeGeoMapItem::updateItem()
{
// we seem to not always get texture changed -signals when
// adding static map items with add
if (!mapItem_.textureId() && textureProvider()->texture()) {
mapItem_.setTextureId(textureProvider()->texture()->textureId());
}
mapItem_.update();
}
QDeclarativeCoordinate* QDeclarativeGeoMapItem::coordinate()
{
return coordinate_;
}
void QDeclarativeGeoMapItem::componentComplete()
{
componentCompleted_ = true;
QSGShaderEffectSource::componentComplete();
}
// This will enable us to intercept the setting of the source item
// if we need to intercept our own Map graphical elements like route.
// Also this way we can handle addition and removal of this item to map.
void QDeclarativeGeoMapItem::setSource(QSGItem* source)
{
if (source == sourceItem_)
return;
sourceItem_ = source;
if (map_)
setSourceItem(sourceItem_);
if (sourceItem_) {
mapItem_.setSize(QSize(sourceItem_->width(), sourceItem_->height()));
}
emit sourceChanged();
}
QSGItem* QDeclarativeGeoMapItem::source()
{
if (!map_)
return sourceItem_;
return sourceItem();
}
#endif
#include "moc_qdeclarativegeomapitem_p.cpp"
QT_END_NAMESPACE
|
