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50
51#include "imagesettings.h"
52#include "ui_imagesettings.h"
53
54#include <QComboBox>
55#include <QDebug>
56#include <QCameraImageCapture>
57#include <QMediaService>
58
59
60ImageSettings::ImageSettings(QCameraImageCapture *imageCapture, QWidget *parent) :
61 QDialog(parent),
62 ui(new Ui::ImageSettingsUi),
63 imagecapture(imageCapture)
64{
65 ui->setupUi(this);
66
67 //image codecs
68 ui->imageCodecBox->addItem(atext: tr(s: "Default image format"), auserData: QVariant(QString()));
69 const QStringList supportedImageCodecs = imagecapture->supportedImageCodecs();
70 for (const QString &codecName : supportedImageCodecs) {
71 QString description = imagecapture->imageCodecDescription(codecName);
72 ui->imageCodecBox->addItem(atext: codecName + ": " + description, auserData: QVariant(codecName));
73 }
74
75 ui->imageQualitySlider->setRange(min: 0, max: int(QMultimedia::VeryHighQuality));
76
77 ui->imageResolutionBox->addItem(atext: tr(s: "Default Resolution"));
78 const QList<QSize> supportedResolutions = imagecapture->supportedResolutions();
79 for (const QSize &resolution : supportedResolutions) {
80 ui->imageResolutionBox->addItem(atext: QString("%1x%2").arg(a: resolution.width()).arg(a: resolution.height()),
81 auserData: QVariant(resolution));
82 }
83}
84
85ImageSettings::~ImageSettings()
86{
87 delete ui;
88}
89
90void ImageSettings::changeEvent(QEvent *e)
91{
92 QDialog::changeEvent(e);
93 switch (e->type()) {
94 case QEvent::LanguageChange:
95 ui->retranslateUi(ImageSettingsUi: this);
96 break;
97 default:
98 break;
99 }
100}
101
102QImageEncoderSettings ImageSettings::imageSettings() const
103{
104 QImageEncoderSettings settings = imagecapture->encodingSettings();
105 settings.setCodec(boxValue(box: ui->imageCodecBox).toString());
106 settings.setQuality(QMultimedia::EncodingQuality(ui->imageQualitySlider->value()));
107 settings.setResolution(boxValue(box: ui->imageResolutionBox).toSize());
108
109 return settings;
110}
111
112void ImageSettings::setImageSettings(const QImageEncoderSettings &imageSettings)
113{
114 selectComboBoxItem(box: ui->imageCodecBox, value: QVariant(imageSettings.codec()));
115 selectComboBoxItem(box: ui->imageResolutionBox, value: QVariant(imageSettings.resolution()));
116 ui->imageQualitySlider->setValue(imageSettings.quality());
117}
118
119QVariant ImageSettings::boxValue(const QComboBox *box) const
120{
121 int idx = box->currentIndex();
122 if (idx == -1)
123 return QVariant();
124
125 return box->itemData(index: idx);
126}
127
128void ImageSettings::selectComboBoxItem(QComboBox *box, const QVariant &value)
129{
130 for (int i = 0; i < box->count(); ++i) {
131 if (box->itemData(index: i) == value) {
132 box->setCurrentIndex(i);
133 break;
134 }
135 }
136}
137

source code of qtmultimedia/examples/multimediawidgets/camera/imagesettings.cpp