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/* Camera snippets */

#include "qcamera.h"
#include "qcameraviewfinder.h"
#include "qmediarecorder.h"
#include "qcameraimagecapture.h"
#include "qcameraimageprocessing.h"

void camera()
{
    QCamera *camera = 0;
    QCameraViewfinder *viewfinder = 0;
    QMediaRecorder *recorder = 0;
    QCameraImageCapture *imageCapture = 0;

    //! [Camera]
    camera = new QCamera;

    viewfinder = new QCameraViewfinder();
    viewfinder->show();

    camera->setViewfinder(viewfinder);

    recorder = new QMediaRecorder(camera);
    imageCapture = new QCameraImageCapture(camera);

    camera->setCaptureMode(QCamera::CaptureStillImage);
    camera->start();
    //! [Camera]

    //! [Camera keys]
    //on half pressed shutter button
    camera->searchAndLock();

    //on shutter button pressed
    imageCapture->capture();

    //on shutter button released
    camera->unlock();
    //! [Camera keys]
}

void cameraimageprocessing()
{
    QCamera *camera = 0;

    //! [Camera image whitebalance]
    camera = new QCamera;
    QCameraImageProcessing *imageProcessing = camera->imageProcessing();

    if (imageProcessing->isAvailable()) {
        imageProcessing->setWhiteBalanceMode(QCameraImageProcessing::WhiteBalanceFluorescent);
    }
    //! [Camera image whitebalance]

    //! [Camera image denoising]
    if (imageProcessing->isDenoisingSupported()) {
        imageProcessing->setDenoisingLevel(3);
    }
    //! [Camera image denoising]
}

void camerafocus()
{
    QCamera *camera = 0;

    //! [Camera custom zoom]
    QCameraFocus *focus = camera->focus();
    focus->setFocusPointMode(QCameraFocus::FocusPointCustom);
    focus->setCustomFocusPoint(QPointF(0.25f, 0.75f)); // A point near the bottom left, 25% away from the corner, near that shiny vase
    //! [Camera custom zoom]

    //! [Camera combined zoom]
    focus->zoomTo(3.0, 4.0); // Super zoom!
    //! [Camera combined zoom]

    //! [Camera focus zones]
    focus->setFocusPointMode(QCameraFocus::FocusPointAuto);
    QList<QCameraFocusZone> zones = focus->focusZones();
    foreach (QCameraFocusZone zone, zones) {
        if (zone.status() == QCameraFocusZone::Focused) {
            // Draw a green box at zone.area()
        } else if (zone.status() == QCameraFocusZone::Selected) {
            // This area is selected for autofocusing, but is not in focus
            // Draw a yellow box at zone.area()
        }
    }
    //! [Camera focus zones]
}