summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/ios/qiosscreen.mm
blob: e70b369b79b72211ce6289e6bdf43aa7b772b66b (plain)
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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights.  These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qiosglobal.h"
#include "qiosintegration.h"
#include "qiosscreen.h"
#include "qioswindow.h"
#include <qpa/qwindowsysteminterface.h>
#include "qiosapplicationdelegate.h"
#include "qiosviewcontroller.h"

#include <sys/sysctl.h>

// -------------------------------------------------------------------------

static QIOSScreen* qtPlatformScreenFor(UIScreen *uiScreen)
{
    foreach (QScreen *screen, QGuiApplication::screens()) {
        QIOSScreen *platformScreen = static_cast<QIOSScreen *>(screen->handle());
        if (platformScreen->uiScreen() == uiScreen)
            return platformScreen;
    }

    return 0;
}

@interface QIOSScreenTracker : NSObject
@end

@implementation QIOSScreenTracker

+ (void)load
{
    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
    [center addObserver:self selector:@selector(screenConnected:)
            name:UIScreenDidConnectNotification object:nil];
    [center addObserver:self selector:@selector(screenDisconnected:)
            name:UIScreenDidDisconnectNotification object:nil];
    [center addObserver:self selector:@selector(screenModeChanged:)
            name:UIScreenModeDidChangeNotification object:nil];
}

+ (void)screenConnected:(NSNotification*)notification
{
    QIOSIntegration *integration = QIOSIntegration::instance();
    Q_ASSERT_X(integration, Q_FUNC_INFO, "Screen connected before QIOSIntegration creation");

    integration->addScreen(new QIOSScreen([notification object]));
}

+ (void)screenDisconnected:(NSNotification*)notification
{
    QIOSScreen *screen = qtPlatformScreenFor([notification object]);
    Q_ASSERT_X(screen, Q_FUNC_INFO, "Screen disconnected that we didn't know about");

    delete screen;
}

+ (void)screenModeChanged:(NSNotification*)notification
{
    QIOSScreen *screen = qtPlatformScreenFor([notification object]);
    Q_ASSERT_X(screen, Q_FUNC_INFO, "Screen changed that we didn't know about");

    screen->updateProperties();
}

@end

// -------------------------------------------------------------------------

@interface QIOSOrientationListener : NSObject {
    @public
    QIOSScreen *m_screen;
}
- (id) initWithQIOSScreen:(QIOSScreen *)screen;
@end

@implementation QIOSOrientationListener

- (id) initWithQIOSScreen:(QIOSScreen *)screen
{
    self = [super init];
    if (self) {
        m_screen = screen;
        [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
        [[NSNotificationCenter defaultCenter]
            addObserver:self
            selector:@selector(orientationChanged:)
            name:@"UIDeviceOrientationDidChangeNotification" object:nil];
    }
    return self;
}

- (void) dealloc
{
    [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
    [[NSNotificationCenter defaultCenter]
        removeObserver:self
        name:@"UIDeviceOrientationDidChangeNotification" object:nil];
    [super dealloc];
}

- (void) orientationChanged:(NSNotification *)notification
{
    Q_UNUSED(notification);

    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    switch (deviceOrientation) {
    case UIDeviceOrientationFaceUp:
    case UIDeviceOrientationFaceDown:
        // We ignore these events, as iOS will send events with the 'regular'
        // orientations alongside these two orientations.
        return;
    default:
        Qt::ScreenOrientation screenOrientation = toQtScreenOrientation(deviceOrientation);
        QWindowSystemInterface::handleScreenOrientationChange(m_screen->screen(), screenOrientation);
    }
}

@end

// -------------------------------------------------------------------------

/*!
    Returns the model identifier of the device.

    When running under the simulator, the identifier will not
    match the simulated device, but will be x86_64 or i386.
*/
static QString deviceModelIdentifier()
{
    static const char key[] = "hw.machine";

    size_t size;
    sysctlbyname(key, NULL, &size, NULL, 0);

    char value[size];
    sysctlbyname(key, &value, &size, NULL, 0);

    return QString::fromLatin1(value);
}

QIOSScreen::QIOSScreen(UIScreen *screen)
    : QPlatformScreen()
    , m_uiScreen(screen)
    , m_uiWindow(0)
    , m_orientationListener(0)
{
    if (screen == [UIScreen mainScreen]) {
        QString deviceIdentifier = deviceModelIdentifier();

        if (deviceIdentifier == QLatin1String("iPhone2,1") /* iPhone 3GS */
            || deviceIdentifier == QLatin1String("iPod3,1") /* iPod touch 3G */) {
            m_depth = 18;
        } else {
            m_depth = 24;
        }

        if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad
            && !deviceIdentifier.contains(QRegularExpression("^iPad2,[567]$")) /* excluding iPad Mini */) {
            m_unscaledDpi = 132;
        } else {
            m_unscaledDpi = 163; // Regular iPhone DPI
        }
    } else {
        // External display, hard to say
        m_depth = 24;
        m_unscaledDpi = 96;
    }

    for (UIWindow *existingWindow in [[UIApplication sharedApplication] windows]) {
        if (existingWindow.screen == m_uiScreen) {
            m_uiWindow = [m_uiWindow retain];
            break;
        }
    }

    if (!m_uiWindow) {
        // Create a window and associated view-controller that we can use
        m_uiWindow = [[UIWindow alloc] initWithFrame:[m_uiScreen bounds]];
        m_uiWindow.rootViewController = [[[QIOSViewController alloc] initWithQIOSScreen:this] autorelease];

        // FIXME: Only do once windows are added to the screen, and for any screen
        if (screen == [UIScreen mainScreen]) {
            m_uiWindow.screen = m_uiScreen;
            m_uiWindow.hidden = NO;
        }
    }

    updateProperties();
}

QIOSScreen::~QIOSScreen()
{
    [m_orientationListener release];
    [m_uiWindow release];
}

void QIOSScreen::updateProperties()
{
    QRect previousGeometry = m_geometry;
    QRect previousAvailableGeometry = m_availableGeometry;

    UIView *rootView = m_uiWindow.rootViewController.view;

    m_geometry = fromCGRect([rootView convertRect:m_uiScreen.bounds fromView:m_uiWindow]).toRect();
    m_availableGeometry = fromCGRect([rootView convertRect:m_uiScreen.applicationFrame fromView:m_uiWindow]).toRect();

    if (m_geometry != previousGeometry || m_availableGeometry != previousAvailableGeometry) {
        const qreal millimetersPerInch = 25.4;
        m_physicalSize = QSizeF(m_geometry.size()) / m_unscaledDpi * millimetersPerInch;

        QWindowSystemInterface::handleScreenGeometryChange(screen(), m_geometry, m_availableGeometry);
    }
}

QRect QIOSScreen::geometry() const
{
    return m_geometry;
}

QRect QIOSScreen::availableGeometry() const
{
    return m_availableGeometry;
}

int QIOSScreen::depth() const
{
    return m_depth;
}

QImage::Format QIOSScreen::format() const
{
    return QImage::Format_ARGB32_Premultiplied;
}

QSizeF QIOSScreen::physicalSize() const
{
    return m_physicalSize;
}

QDpi QIOSScreen::logicalDpi() const
{
    return QDpi(72, 72);
}

qreal QIOSScreen::devicePixelRatio() const
{
    return [m_uiScreen scale];
}

Qt::ScreenOrientation QIOSScreen::nativeOrientation() const
{
    CGRect nativeBounds =
#if QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_8_0)
        QSysInfo::MacintoshVersion >= QSysInfo::MV_IOS_8_0 ? m_uiScreen.nativeBounds :
#endif
        m_uiScreen.bounds;

    // All known iOS devices have a native orientation of portrait, but to
    // be on the safe side we compare the width and height of the bounds.
    return nativeBounds.size.width >= nativeBounds.size.height ?
        Qt::LandscapeOrientation : Qt::PortraitOrientation;
}

Qt::ScreenOrientation QIOSScreen::orientation() const
{
    return toQtScreenOrientation([UIDevice currentDevice].orientation);
}

void QIOSScreen::setOrientationUpdateMask(Qt::ScreenOrientations mask)
{
    if (m_orientationListener && mask == Qt::PrimaryOrientation) {
        [m_orientationListener release];
        m_orientationListener = 0;
    } else if (!m_orientationListener) {
        m_orientationListener = [[QIOSOrientationListener alloc] initWithQIOSScreen:this];
    }
}

UIScreen *QIOSScreen::uiScreen() const
{
    return m_uiScreen;
}

#include "moc_qiosscreen.cpp"

QT_END_NAMESPACE