static bool orientationMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part, MediaFeaturePrefix /*op*/)
{
if (value) {
CSSPrimitiveValueImpl *pv = static_cast<CSSPrimitiveValueImpl *>(value);
if (!value->isPrimitiveValue() || pv->primitiveType() != CSSPrimitiveValue::CSS_IDENT ||
(pv->getIdent() != CSS_VAL_PORTRAIT && pv->getIdent() != CSS_VAL_LANDSCAPE)) {
return false;
}
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
if (printing) {
if (pd->width() > pd->height()) {
return (pv->getIdent() == CSS_VAL_LANDSCAPE);
}
} else {
if (part->view()->visibleWidth() > part->view()->visibleHeight()) {
return (pv->getIdent() == CSS_VAL_LANDSCAPE);
}
}
return (pv->getIdent() == CSS_VAL_PORTRAIT);
}
return false;
}
static bool monochromeMediaFeatureEval(CSSValueImpl* value, RenderStyle*, KHTMLPart* part, MediaFeaturePrefix op)
{
KHTMLPart* rootPart = part;
while (rootPart->parentPart()) rootPart = rootPart->parentPart();
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
int depth = 0;
if (printing) {
if (pd->numColors() < 2)
depth = 1;
// assume printer is either b&w or color.
} else {
int sn = QApplication::desktop()->screenNumber( rootPart->view() );
if (QApplication::desktop()->screen(sn)->depth() == 1)
depth = 1;
else if (QColormap::instance(sn).mode() == QColormap::Gray)
depth = QApplication::desktop()->screen(sn)->depth();
}
if (value)
{
float number = 0;
return numberValue(value, number) && compareValue(depth, static_cast<int>(number), op);
}
return depth;
}
static bool aspect_ratioMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part, MediaFeaturePrefix op)
{
if (value) {
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
QSize vs;
int h = 0, v = 0;
if (printing) {
vs = QSize(pd->width(), pd->height());
} else {
vs = QSize(part->view()->visibleWidth(), part->view()->visibleHeight());
}
if (parseAspectRatio(value, h, v)) {
return v != 0 && compareValue(vs.width() * v, vs.height() * h, op);
}
return false;
}
// ({,min-,max-}aspect-ratio)
// assume if we have a viewport, its aspect ratio is non-zero
return true;
}
static bool device_aspect_ratioMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part, MediaFeaturePrefix op)
{
if (value) {
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
QRect sg;
int h = 0, v = 0;
if (printing) {
sg = QRect(0, 0, pd->width(), pd->height());
} else {
sg = QApplication::desktop()->screen(QApplication::desktop()->screenNumber(rootPart->view()))->rect();
}
if (parseAspectRatio(value, h, v)) {
return v != 0 && compareValue(sg.width() * v, sg.height() * h, op);
}
return false;
}
// ({,min-,max-}device-aspect-ratio)
// assume if we have a device, its aspect ratio is non-zero
return true;
}
static bool colorMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part, MediaFeaturePrefix op)
{
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
int bitsPerComponent = 0;
if (printing) {
if (pd->colorCount() > 2) {
bitsPerComponent = pd->depth() / 3;
}
// assume printer is either b&w or color.
} else {
int sn = QApplication::desktop()->screenNumber(rootPart->view());
if (QColormap::instance(sn).mode() != QColormap::Gray) {
bitsPerComponent = QApplication::desktop()->screen(sn)->depth() / 3;
}
}
if (value && bitsPerComponent) {
float number = 0;
return numberValue(value, number) && compareValue(bitsPerComponent, static_cast<int>(number), op);
}
return bitsPerComponent;
}
static bool color_indexMediaFeatureEval(CSSValueImpl *value, RenderStyle *, KHTMLPart *part, MediaFeaturePrefix op)
{
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
unsigned int numColors = 0;
if (printing) {
numColors = pd->colorCount();
} else {
int sn = QApplication::desktop()->screenNumber(rootPart->view());
numColors = QApplication::desktop()->screen(sn)->colorCount();
}
if (numColors == INT_MAX) {
numColors = UINT_MAX;
}
if (value) {
float number = 0;
return numberValue(value, number) && compareValue(numColors, static_cast<unsigned int>(number), op);
}
return numColors;
}
static bool heightMediaFeatureEval(CSSValueImpl* value, RenderStyle* style, KHTMLPart* part, MediaFeaturePrefix op)
{
KHTMLPart* rootPart = part;
while (rootPart->parentPart()) rootPart = rootPart->parentPart();
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
int height;
if (printing)
height = pd->height();
else {
height = part->view()->visibleHeight();
doc = static_cast<DOM::DocumentImpl*>(part->document().handle());
}
int logicalDpiY = doc->logicalDpiY();
if (value)
return value->isPrimitiveValue() && compareValue(height, static_cast<CSSPrimitiveValueImpl*>(value)->computeLength(style, logicalDpiY), op);
return height > 0;
}
static bool device_widthMediaFeatureEval(CSSValueImpl* value, RenderStyle* style, KHTMLPart* part, MediaFeaturePrefix op)
{
if (value) {
KHTMLPart* rootPart = part;
while (rootPart->parentPart()) rootPart = rootPart->parentPart();
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl*>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
int width;
if (printing)
width = pd->width();
else {
width = QApplication::desktop()->screen(QApplication::desktop()->screenNumber( rootPart->view() ))->rect().width();
doc = static_cast<DOM::DocumentImpl*>(part->document().handle());
}
int logicalDpiY = doc->logicalDpiY();
return value->isPrimitiveValue() && compareValue(width, static_cast<CSSPrimitiveValueImpl*>(value)->computeLength(style,logicalDpiY), op);
}
// ({,min-,max-}device-width)
// assume if we have a device, assume non-zero
return true;
}
static bool widthMediaFeatureEval(CSSValueImpl *value, RenderStyle *style, KHTMLPart *part, MediaFeaturePrefix op)
{
KHTMLPart *rootPart = part;
while (rootPart->parentPart()) {
rootPart = rootPart->parentPart();
}
DOM::DocumentImpl *doc = static_cast<DOM::DocumentImpl *>(rootPart->document().handle());
QPaintDevice *pd = doc->paintDevice();
bool printing = pd ? (pd->devType() == QInternal::Printer) : false;
int width;
if (printing) {
width = pd->width();
} else {
width = part->view()->visibleWidth();
doc = static_cast<DOM::DocumentImpl *>(part->document().handle());
}
int logicalDpiY = doc->logicalDpiY();
if (value) {
return value->isPrimitiveValue() && compareValue(width, static_cast<CSSPrimitiveValueImpl *>(value)->computeLength(style, style, logicalDpiY), op);
}
return width > 0;
}