CFDictionaryRef QTPixelBuffer::createPixelBufferAttributesDictionary(QTPixelBuffer::Type contextType)
{
static const CFStringRef kDirect3DCompatibilityKey = CFSTR("Direct3DCompatibility");
CFMutableDictionaryRef pixelBufferAttributes = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
if (contextType == QTPixelBuffer::ConfigureForCAImageQueue) {
// Ask for D3D compatible pixel buffers so no further work is needed.
CFDictionarySetValue(pixelBufferAttributes, kDirect3DCompatibilityKey, kCFBooleanTrue);
} else {
// Use the k32BGRAPixelFormat, as QuartzCore will be able to use the pixels directly,
// without needing an additional copy or rendering pass.
SetNumberValue(pixelBufferAttributes, kCVPixelBufferPixelFormatTypeKey, k32BGRAPixelFormat);
// Set kCVPixelBufferBytesPerRowAlignmentKey to 16 to ensure that each row of pixels
// starts at a 16 byte aligned address for most efficient data reading.
SetNumberValue(pixelBufferAttributes, kCVPixelBufferBytesPerRowAlignmentKey, 16);
CFDictionarySetValue(pixelBufferAttributes, kCVPixelBufferCGImageCompatibilityKey, kCFBooleanTrue);
}
return pixelBufferAttributes;
}
void OpNumberEdit::ChangeNumber(int direction)
{
OP_ASSERT(direction != 0);
double delta = direction * m_step;
double value_number;
if (HasValue() && GetValue(value_number))
{
value_number = WebForms2Number::SnapToStep(value_number, m_step_base, m_step, direction);
double result_value;
OP_STATUS status =
WebForms2Number::StepNumber(value_number, m_min_value,
m_max_value, m_step_base,
m_step, direction, m_wrap_around,
TRUE, /* fuzzy step, be helpful. */
result_value);
if (OpStatus::IsSuccess(status))
{
SetNumberValue(result_value);
}
}
else if (m_wrap_around)
{
// If we have a wrappable number control and the user
// clicks up or down, start the number even if there was none from the beginning.
double value_number = delta >= 0 ? m_min_value : m_max_value;
SetNumberValue(value_number);
}
else
{
// Not wrap around and no current content.
if (m_min_value > m_max_value)
{
return;
}
if (delta >= 0)
{
// some low value
if (m_min_value != -DBL_MAX)
{
SetNumberValue(m_min_value);
}
else if (m_max_value >= 0.0)
{
SetNumberValue(0.0);
}
else
{
SetNumberValue(m_max_value); // What else? -DBL_MAX?
}
}
else
{
// some high value
if (m_max_value != DBL_MAX)
{
SetNumberValue(m_max_value);
}
else if (m_min_value <= 0.0)
{
SetNumberValue(0.0);
}
else
{
SetNumberValue(m_min_value); // What else? DBL_MAX?
}
}
}
if (listener)
{
listener->OnChangeWhenLostFocus(this); // since normal OnChange is filtered
}
}
