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
|
/*
* Copyright 2014 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.2
import QtQuick.Window 2.0
import Ubuntu.Components 1.0
import QtMultimedia 5.0
import CameraApp 0.1
import QtGraphicalEffects 1.0
Item {
id: viewFinderView
property bool overlayVisible: true
property bool optionValueSelectorVisible: false
property bool touchAcquired: viewFinderOverlay.touchAcquired
property bool inView
signal photoTaken
signal videoShot
Camera {
id: camera
captureMode: Camera.CaptureStillImage
function manualFocus(x, y) {
viewFinderOverlay.showFocusRing(x, y);
autoFocusTimer.restart();
focus.focusMode = Camera.FocusAuto;
focus.customFocusPoint = viewFinder.mapPointToSourceNormalized(Qt.point(x, y));
focus.focusPointMode = Camera.FocusPointCustom;
}
function autoFocus() {
focus.focusMode = Camera.FocusContinuous;
focus.focusPointMode = Camera.FocusPointAuto;
}
property var autoFocusTimer: Timer {
interval: 5000
onTriggered: camera.autoFocus();
}
focus {
focusMode: Camera.FocusContinuous
focusPointMode: Camera.FocusPointAuto
}
property AdvancedCameraSettings advanced: AdvancedCameraSettings {
camera: camera
}
Component.onCompleted: {
camera.start();
}
/* Use only digital zoom for now as it's what phone cameras mostly use.
TODO: if optical zoom is available, maximumZoom should be the combined
range of optical and digital zoom and currentZoom should adjust the two
transparently based on the value. */
property alias currentZoom: camera.digitalZoom
property alias maximumZoom: camera.maximumDigitalZoom
property bool captureInProgress: false
property bool switchInProgress: false
imageCapture {
onCaptureFailed: {
console.log("Capture failed for request " + requestId + ": " + message);
}
onImageCaptured: {
snapshot.source = preview;
}
onImageSaved: {
viewFinderView.photoTaken();
metricPhotos.increment();
console.log("Picture saved as " + path);
}
}
videoRecorder {
onRecorderStateChanged: {
if (videoRecorder.recorderState === CameraRecorder.StoppedState) {
metricVideos.increment()
viewFinderOverlay.controls.completeCapture();
viewFinderView.videoShot();
}
}
}
}
Connections {
target: Qt.application
onActiveChanged: {
if (Qt.application.active) {
camera.start()
} else if (!application.desktopMode) {
if (camera.videoRecorder.recorderState == CameraRecorder.RecordingState) {
camera.videoRecorder.stop();
}
camera.stop()
}
}
}
Item {
id: viewFinderSwitcher
anchors.fill: parent
ShaderEffectSource {
id: viewFinderGrab
live: false
sourceItem: viewFinder
onScheduledUpdateCompleted: {
if (camera.switchInProgress) {
// FIXME: hack to make viewFinder invisible
// 'viewFinder.visible = false' prevents the camera switching
viewFinder.width = 1;
viewFinder.height = 1;
camera.advanced.activeCameraIndex = (camera.advanced.activeCameraIndex === 0) ? 1 : 0;
viewFinderSwitcherRotation.angle = 180;
}
}
transform: Rotation {
origin.x: viewFinderGrab.width/2
origin.y: viewFinderGrab.height/2
axis.x: 0; axis.y: 1; axis.z: 0
angle: 180
}
}
transform: [
Scale {
id: viewFinderSwitcherScale
origin.x: viewFinderSwitcher.width/2
origin.y: viewFinderSwitcher.height/2
xScale: 1
yScale: xScale
},
Rotation {
id: viewFinderSwitcherRotation
origin.x: viewFinderSwitcher.width/2
origin.y: viewFinderSwitcher.height/2
axis.x: 0; axis.y: 1; axis.z: 0
angle: 0
}
]
SequentialAnimation {
id: viewFinderSwitcherAnimation
SequentialAnimation {
ParallelAnimation {
UbuntuNumberAnimation {target: viewFinderSwitcherScale; property: "xScale"; from: 1.0; to: 0.8; duration: UbuntuAnimation.BriskDuration ; easing: UbuntuAnimation.StandardEasing}
UbuntuNumberAnimation {
target: viewFinderSwitcherRotation
property: "angle"
from: 180
to: 90
duration: UbuntuAnimation.BriskDuration
easing: UbuntuAnimation.StandardEasing
}
}
PropertyAction { target: viewFinder; property: "width"; value: viewFinderSwitcher.width}
PropertyAction { target: viewFinder; property: "height"; value: viewFinderSwitcher.height}
PropertyAction { target: viewFinderGrab; property: "visible"; value: false }
ParallelAnimation {
UbuntuNumberAnimation {target: viewFinderSwitcherScale; property: "xScale"; from: 0.8; to: 1.0; duration: UbuntuAnimation.BriskDuration; easing: UbuntuAnimation.StandardEasingReverse}
UbuntuNumberAnimation {
target: viewFinderSwitcherRotation
property: "angle"
from: 90
to: 0
duration: UbuntuAnimation.BriskDuration
easing: UbuntuAnimation.StandardEasingReverse
}
}
}
}
VideoOutput {
id: viewFinder
x: 0
y: -viewFinderGeometry.y
width: parent.width
height: parent.height
source: camera
/* This rotation need to be applied since the camera hardware in the
Galaxy Nexus phone is mounted at an angle inside the device, so the video
feed is rotated too.
FIXME: This should come from a system configuration option so that we
don't have to have a different codebase for each different device we want
to run on */
orientation: Screen.primaryOrientation === Qt.PortraitOrientation ? -90 : 0
/* Convenience item tracking the real position and size of the real video feed.
Having this helps since these values depend on a lot of rules:
- the feed is automatically scaled to fit the viewfinder
- the viewfinder might apply a rotation to the feed, depending on device orientation
- the resolution and aspect ratio of the feed changes depending on the active camera
The item is also separated in a component so it can be unit tested.
*/
transform: Rotation {
origin.x: viewFinder.width / 2
origin.y: viewFinder.height / 2
axis.x: 0; axis.y: 1; axis.z: 0
angle: application.desktopMode ? 180 : 0
}
ViewFinderGeometry {
id: viewFinderGeometry
anchors.centerIn: parent
cameraResolution: camera.advanced.resolution
viewFinderHeight: viewFinder.height
viewFinderWidth: viewFinder.width
viewFinderOrientation: viewFinder.orientation
}
}
Rectangle {
id: shootFeedback
anchors.fill: parent
color: "white"
visible: opacity != 0.0
opacity: 0.0
function start() {
shootFeedback.opacity = 1.0;
viewFinderOverlay.visible = false;
shootFeedbackAnimation.restart();
}
OpacityAnimator {
id: shootFeedbackAnimation
target: shootFeedback
from: 1.0
to: 0.0
duration: 50
easing: UbuntuAnimation.StandardEasing
}
}
}
FastBlur {
anchors.fill: viewFinderSwitcher
radius: viewFinderOverlay.revealProgress * 64
source: radius !== 0 ? viewFinderSwitcher : null
visible: radius !== 0
}
ViewFinderOverlay {
id: viewFinderOverlay
anchors.fill: parent
camera: camera
opacity: overlayVisible ? 1.0 : 0.0
Behavior on opacity {UbuntuNumberAnimation {duration: UbuntuAnimation.SnapDuration}}
}
Snapshot {
id: snapshot
anchors.fill: parent
orientation: viewFinder.orientation
geometry: viewFinderGeometry
deviceDefaultIsPortrait: Screen.primaryOrientation === Qt.PortraitOrientation
}
}
|