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3 ** Copyright (C) 2015 The Qt Company Ltd.
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6 ** This file is part of the QtDeclarative module of the Qt Toolkit.
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30 ** GNU General Public License Usage
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40 ****************************************************************************/
41
42 #include "private/qdeclarativeimagebase_p.h"
43 #include "private/qdeclarativeimagebase_p_p.h"
44
45 #include <qdeclarativeengine.h>
46 #include <qdeclarativeinfo.h>
47 #include <qdeclarativepixmapcache_p.h>
48
49 QT_BEGIN_NAMESPACE
50
QDeclarativeImageBase(QDeclarativeItem * parent)51 QDeclarativeImageBase::QDeclarativeImageBase(QDeclarativeItem *parent)
52 : QDeclarativeImplicitSizeItem(*(new QDeclarativeImageBasePrivate), parent)
53 {
54 }
55
QDeclarativeImageBase(QDeclarativeImageBasePrivate & dd,QDeclarativeItem * parent)56 QDeclarativeImageBase::QDeclarativeImageBase(QDeclarativeImageBasePrivate &dd, QDeclarativeItem *parent)
57 : QDeclarativeImplicitSizeItem(dd, parent)
58 {
59 }
60
~QDeclarativeImageBase()61 QDeclarativeImageBase::~QDeclarativeImageBase()
62 {
63 }
64
status() const65 QDeclarativeImageBase::Status QDeclarativeImageBase::status() const
66 {
67 Q_D(const QDeclarativeImageBase);
68 return d->status;
69 }
70
71
progress() const72 qreal QDeclarativeImageBase::progress() const
73 {
74 Q_D(const QDeclarativeImageBase);
75 return d->progress;
76 }
77
78
asynchronous() const79 bool QDeclarativeImageBase::asynchronous() const
80 {
81 Q_D(const QDeclarativeImageBase);
82 return d->async;
83 }
84
setAsynchronous(bool async)85 void QDeclarativeImageBase::setAsynchronous(bool async)
86 {
87 Q_D(QDeclarativeImageBase);
88 if (d->async != async) {
89 d->async = async;
90 emit asynchronousChanged();
91 }
92 }
93
source() const94 QUrl QDeclarativeImageBase::source() const
95 {
96 Q_D(const QDeclarativeImageBase);
97 return d->url;
98 }
99
setSource(const QUrl & url)100 void QDeclarativeImageBase::setSource(const QUrl &url)
101 {
102 Q_D(QDeclarativeImageBase);
103 //equality is fairly expensive, so we bypass for simple, common case
104 if ((d->url.isEmpty() == url.isEmpty()) && url == d->url)
105 return;
106
107 d->url = url;
108 emit sourceChanged(d->url);
109
110 if (isComponentComplete())
111 load();
112 }
113
setSourceSize(const QSize & size)114 void QDeclarativeImageBase::setSourceSize(const QSize& size)
115 {
116 Q_D(QDeclarativeImageBase);
117 if (d->sourcesize == size)
118 return;
119
120 d->sourcesize = size;
121 d->explicitSourceSize = true;
122 emit sourceSizeChanged();
123 if (isComponentComplete())
124 load();
125 }
126
sourceSize() const127 QSize QDeclarativeImageBase::sourceSize() const
128 {
129 Q_D(const QDeclarativeImageBase);
130
131 int width = d->sourcesize.width();
132 int height = d->sourcesize.height();
133 return QSize(width != -1 ? width : d->pix.width(), height != -1 ? height : d->pix.height());
134 }
135
resetSourceSize()136 void QDeclarativeImageBase::resetSourceSize()
137 {
138 Q_D(QDeclarativeImageBase);
139 if (!d->explicitSourceSize)
140 return;
141 d->explicitSourceSize = false;
142 d->sourcesize = QSize();
143 emit sourceSizeChanged();
144 if (isComponentComplete())
145 load();
146 }
147
cache() const148 bool QDeclarativeImageBase::cache() const
149 {
150 Q_D(const QDeclarativeImageBase);
151 return d->cache;
152 }
153
setCache(bool cache)154 void QDeclarativeImageBase::setCache(bool cache)
155 {
156 Q_D(QDeclarativeImageBase);
157 if (d->cache == cache)
158 return;
159
160 d->cache = cache;
161 emit cacheChanged();
162 if (isComponentComplete())
163 load();
164 }
165
setMirror(bool mirror)166 void QDeclarativeImageBase::setMirror(bool mirror)
167 {
168 Q_D(QDeclarativeImageBase);
169 if (mirror == d->mirror)
170 return;
171
172 d->mirror = mirror;
173
174 if (isComponentComplete())
175 update();
176
177 emit mirrorChanged();
178 }
179
mirror() const180 bool QDeclarativeImageBase::mirror() const
181 {
182 Q_D(const QDeclarativeImageBase);
183 return d->mirror;
184 }
185
load()186 void QDeclarativeImageBase::load()
187 {
188 Q_D(QDeclarativeImageBase);
189
190 if (d->url.isEmpty()) {
191 d->pix.clear(this);
192 d->status = Null;
193 d->progress = 0.0;
194 pixmapChange();
195 emit progressChanged(d->progress);
196 emit statusChanged(d->status);
197 update();
198 } else {
199 QDeclarativePixmap::Options options;
200 if (d->async)
201 options |= QDeclarativePixmap::Asynchronous;
202 if (d->cache)
203 options |= QDeclarativePixmap::Cache;
204 d->pix.clear(this);
205 d->pix.load(qmlEngine(this), d->url, d->explicitSourceSize ? sourceSize() : QSize(), options);
206
207 if (d->pix.isLoading()) {
208 d->progress = 0.0;
209 d->status = Loading;
210 emit progressChanged(d->progress);
211 emit statusChanged(d->status);
212
213 static int thisRequestProgress = -1;
214 static int thisRequestFinished = -1;
215 if (thisRequestProgress == -1) {
216 thisRequestProgress =
217 QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestProgress(qint64,qint64)");
218 thisRequestFinished =
219 QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestFinished()");
220 }
221
222 d->pix.connectFinished(this, thisRequestFinished);
223 d->pix.connectDownloadProgress(this, thisRequestProgress);
224
225 } else {
226 requestFinished();
227 }
228 }
229 }
230
requestFinished()231 void QDeclarativeImageBase::requestFinished()
232 {
233 Q_D(QDeclarativeImageBase);
234
235 QDeclarativeImageBase::Status oldStatus = d->status;
236 qreal oldProgress = d->progress;
237
238 if (d->pix.isError()) {
239 d->status = Error;
240 qmlInfo(this) << d->pix.error();
241 } else {
242 d->status = Ready;
243 }
244
245 d->progress = 1.0;
246
247 pixmapChange();
248
249 if (d->sourcesize.width() != d->pix.width() || d->sourcesize.height() != d->pix.height())
250 emit sourceSizeChanged();
251
252 if (d->status != oldStatus)
253 emit statusChanged(d->status);
254 if (d->progress != oldProgress)
255 emit progressChanged(d->progress);
256
257 update();
258 }
259
requestProgress(qint64 received,qint64 total)260 void QDeclarativeImageBase::requestProgress(qint64 received, qint64 total)
261 {
262 Q_D(QDeclarativeImageBase);
263 if (d->status == Loading && total > 0) {
264 d->progress = qreal(received)/total;
265 emit progressChanged(d->progress);
266 }
267 }
268
componentComplete()269 void QDeclarativeImageBase::componentComplete()
270 {
271 Q_D(QDeclarativeImageBase);
272 QDeclarativeItem::componentComplete();
273 if (d->url.isValid())
274 load();
275 }
276
pixmapChange()277 void QDeclarativeImageBase::pixmapChange()
278 {
279 Q_D(QDeclarativeImageBase);
280 setImplicitWidth(d->pix.width());
281 setImplicitHeight(d->pix.height());
282 }
283
284 QT_END_NAMESPACE
285