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#include "qxcbwindowsurface.h"

#include "qxcbconnection.h"
#include "qxcbscreen.h"
#include "qxcbwindow.h"

#include <stdio.h>

QXcbWindowSurface::QXcbWindowSurface(QWidget *widget, bool setDefaultSurface)
    : QWindowSurface(widget, setDefaultSurface)
{
    setStaticContentsSupport(false);
    setPartialUpdateSupport(false);
}

QXcbWindowSurface::~QXcbWindowSurface()
{
}

QPaintDevice *QXcbWindowSurface::paintDevice()
{
    return &m_image;
}

void QXcbWindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &offset)
{
    Q_UNUSED(region);
    Q_UNUSED(offset);

    QXcbScreen *screen = static_cast<QXcbScreen *>(QPlatformScreen::platformScreenForWidget(widget));
    QXcbWindow *window = static_cast<QXcbWindow *>(widget->window()->platformWindow());

    xcb_connection_t *xcb_con = screen->connection()->connection();

    m_gc = xcb_generate_id(xcb_con);
    xcb_create_gc(xcb_con, m_gc, window->window(), 0, 0);

    xcb_put_image(xcb_con,
                  XCB_IMAGE_FORMAT_Z_PIXMAP,
                  window->window(),
                  m_gc,
                  m_image.width(),
                  m_image.height(),
                  0,
                  0,
                  0,
                  24,
                  m_image.numBytes(),
                  m_image.bits());

    xcb_free_gc(xcb_con, m_gc);
    xcb_flush(xcb_con);
}

void QXcbWindowSurface::resize(const QSize &size)
{
    QWindowSurface::resize(size);
    m_image = QImage(size, QImage::Format_RGB32);
}

bool QXcbWindowSurface::scroll(const QRegion &area, int dx, int dy)
{
    return false;
}