C++ (Cpp) setValueNormalized Examples

Example #1

File: cslider.cpp Project: Piticfericit/vstgui

//------------------------------------------------------------------------
bool CSlider::onWheel (const CPoint& where, const float &distance, const CButtonState &buttons)
{
	if (!getMouseEnabled ())
		return false;

	float _distance = distance;
	if (styleIsInverseStyle (style))
		_distance *= -1.f;
	float normValue = getValueNormalized ();
	if (buttons & kZoomModifier)
		normValue += 0.1f * _distance * wheelInc;
	else
		normValue += _distance * wheelInc;

	setValueNormalized (normValue);

	if (isDirty ())
	{
		invalid ();
		
		// begin of edit parameter
		beginEdit ();
	
		valueChanged ();
	
		// end of edit parameter
		endEdit ();
	}

	return true;
}

Example #2

File: cslider.cpp Project: Piticfericit/vstgui

//------------------------------------------------------------------------
int32_t CSlider::onKeyDown (VstKeyCode& keyCode)
{
	switch (keyCode.virt)
	{
		case VKEY_UP :
		case VKEY_RIGHT :
		case VKEY_DOWN :
		case VKEY_LEFT :
		{
			float distance = 1.f;
			bool isInverse = styleIsInverseStyle (style);
			if ((keyCode.virt == VKEY_DOWN && !isInverse) 
			 || (keyCode.virt == VKEY_UP && isInverse)
			 || (keyCode.virt == VKEY_LEFT && !isInverse)
			 || (keyCode.virt == VKEY_RIGHT && isInverse))
			{
				distance = -distance;
			}

			float normValue = getValueNormalized ();
			if (mapVstKeyModifier (keyCode.modifier) & kZoomModifier)
				normValue += 0.1f * distance * wheelInc;
			else
				normValue += distance * wheelInc;

			setValueNormalized (normValue);

			if (isDirty ())
			{
				invalid ();

				// begin of edit parameter
				beginEdit ();
			
				valueChanged ();
			
				// end of edit parameter
				endEdit ();
			}
			return 1;
		}
	}
	return -1;
}

Example #3

File: csegmentbutton.cpp Project: UIKit0/vstgui

//-----------------------------------------------------------------------------
void CSegmentButton::setSelectedSegment (uint32_t index)
{
	setValueNormalized (static_cast<float> (index) / static_cast<float> (segments.size () - 1));
	invalid ();
}

Example #4

File: cslider.cpp Project: Piticfericit/vstgui

//------------------------------------------------------------------------
CMouseEventResult CSlider::onMouseMoved (CPoint& where, const CButtonState& _buttons)
{
	if (isEditing ())
	{
		CButtonState buttons (_buttons);
		if (kAlwaysUseZoomFactor)
			buttons |= kZoomModifier;
		if (buttons & kLButton)
		{
			if (kAlwaysUseZoomFactor)
			{
				CCoord distance = fabs ((style & kHorizontal) ? where.y - mouseStartPoint.y : where.x - mouseStartPoint.x);
				float newZoomFactor = 1.f;
				if (distance > ((style & kHorizontal) ? getHeight () : getWidth ()))
				{
					newZoomFactor = (float)(distance / ((style & kHorizontal) ? getHeight () : getWidth ()));
					newZoomFactor = static_cast<int32_t>(newZoomFactor * 10.f) / 10.f;
				}
				if (zoomFactor != newZoomFactor)
				{
					zoomFactor = newZoomFactor;
					oldVal = (value - getMin ()) / getRange ();
					delta = calculateDelta (where);
				}
			}
			
			if (oldVal == getMin () - 1)
				oldVal = (value - getMin ()) / getRange ();
				
			if ((oldButton != buttons) && (buttons & kZoomModifier))
			{
				oldVal = (value - getMin ()) / getRange ();
				oldButton = buttons;
			}
			else if (!(buttons & kZoomModifier))
				oldVal = (value - getMin ()) / getRange ();

			float normValue;
			if (style & kHorizontal)
				normValue = (float)(where.x - delta) / (float)rangeHandle;
			else
				normValue = (float)(where.y - delta) / (float)rangeHandle;

			if (style & kRight || style & kBottom)
				normValue = 1.f - normValue;

			if (buttons & kZoomModifier)
				normValue = oldVal + ((normValue - oldVal) / zoomFactor);

			setValueNormalized (normValue);
				
			if (isDirty ())
			{
				valueChanged ();
				invalid ();
			}
		}
		return kMouseEventHandled;
	}
	return kMouseEventNotHandled;
}