paysages3d/src/interface/modeler/quickapp/RenderPreviewProvider.cpp

#include "RenderPreviewProvider.h"

#include "Canvas.h"
#include "CanvasPreview.h"
#include "Color.h"

static inline QColor colorToQColor(Color color)
{
    color.normalize();
    return QColor(color.r * 255.0, color.g * 255.0, color.b * 255.0, color.a * 255.0);
}

RenderPreviewProvider::RenderPreviewProvider() :
    QQuickImageProvider(QQuickImageProvider::Image)
{
    canvas = NULL;
    pixbuf = new QImage(1, 1, QImage::Format_ARGB32);
}

RenderPreviewProvider::~RenderPreviewProvider()
{
    delete pixbuf;
}

QImage RenderPreviewProvider::requestImage(const QString &, QSize *size, const QSize &)
{
    if (canvas)
    {
        canvas->getPreview()->updateLive(this);
    }

    if (size)
    {
        *size = pixbuf->size();
    }

    return *pixbuf;
}

void RenderPreviewProvider::setCanvas(const Canvas *canvas)
{
    if (not this->canvas)
    {
        this->canvas = canvas;
        canvas->getPreview()->initLive(this);
    }
}

void RenderPreviewProvider::releaseCanvas()
{
    if (canvas)
    {
        canvas->getPreview()->updateLive(this);
        canvas = NULL;
    }
}

void RenderPreviewProvider::setToneMapping(const ColorProfile &profile)
{
    if (canvas)
    {
        canvas->getPreview()->setToneMapping(profile);
        canvas->getPreview()->updateLive(this);
    }
}

void RenderPreviewProvider::canvasResized(int width, int height)
{
    if (QSize(width, height) != pixbuf->size())
    {
        delete pixbuf;
        pixbuf = new QImage(width, height, QImage::Format_ARGB32);
    }
    pixbuf->fill(Qt::black);
}

void RenderPreviewProvider::canvasCleared(const Color &col)
{
    pixbuf->fill(colorToQColor(col));
}

void RenderPreviewProvider::canvasPainted(int x, int y, const Color &col)
{
    pixbuf->setPixel(x, pixbuf->height() - 1 - y, colorToQColor(col).rgb());
}