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KnobLineCoronaControl.cpp
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KnobLineCoronaControl.cpp
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#include "KnobLineCoronaControl.h"
#include "SpectralHarp.h"
#pragma region KnobLineCoronaControl
KnobLineCoronaControl::KnobLineCoronaControl(IPlugBase* pPlug, IRECT pR, int paramIdx,
const IColor* pColor, const IColor* pCoronaColor,
float coronaThickness,
double innerRadius, double outerRadius,
double minAngle, double maxAngle,
EDirection direction, double gearing)
: IKnobLineControl(pPlug, pR, paramIdx, pColor, innerRadius, outerRadius, minAngle, maxAngle, direction, gearing)
, mCX(mRECT.MW())
, mCY(mRECT.MH())
, mCoronaColor(*pCoronaColor)
, mCoronaBlend(IChannelBlend::kBlendAdd, coronaThickness)
, mLabelControl(nullptr)
, mSharedLabel(false)
, mHasMouse(false)
{
}
bool KnobLineCoronaControl::Draw(IGraphics* pGraphics)
{
float v = mMinAngle + (float)mValue * (mMaxAngle - mMinAngle);
for (int i = 0; i <= mCoronaBlend.mWeight; ++i)
{
IColor color = mCoronaColor;
pGraphics->DrawArc(&color, mCX, mCY, mOuterRadius - i, mMinAngle, v, nullptr, true);
color.R /= 2;
color.G /= 2;
color.B /= 2;
pGraphics->DrawArc(&color, mCX, mCY, mOuterRadius - i, v, mMaxAngle, nullptr, true);
}
float sinV = (float)sin(v);
float cosV = (float)cos(v);
float x1 = mCX + mInnerRadius * sinV, y1 = mCY - mInnerRadius * cosV;
float x2 = mCX + mOuterRadius * sinV, y2 = mCY - mOuterRadius * cosV;
return pGraphics->DrawLine(&mColor, x1, y1, x2, y2, &mBlend, true);
}
void KnobLineCoronaControl::OnMouseDown(int x, int y, IMouseMod* pMod)
{
if (pMod->R)
{
SpectralHarp* plug = dynamic_cast<SpectralHarp*>(mPlug);
if (plug != nullptr)
{
plug->BeginMIDILearn(mParamIdx, -1, x, y);
}
}
else
{
mHasMouse = true;
}
}
void KnobLineCoronaControl::OnMouseDrag(int x, int y, int dX, int dY, IMouseMod* pMod)
{
double gearing = mGearing;
#ifdef PROTOOLS
#ifdef OS_WIN
if (pMod->C) gearing *= 10.0;
#else
if (pMod->R) gearing *= 10.0;
#endif
#else
if (pMod->C || pMod->S) gearing *= 10.0;
#endif
mValue += (double)dY / (double)(mRECT.T - mRECT.B) / gearing;
mValue += (double)dX / (double)(mRECT.R - mRECT.L) / gearing;
SetDirty();
}
void KnobLineCoronaControl::OnMouseUp(int x, int y, IMouseMod* pMod)
{
if (!mRECT.Contains(x, y))
{
HideLabel();
}
mHasMouse = false;
}
void KnobLineCoronaControl::OnMouseOver(int x, int y, IMouseMod* pMod)
{
ShowLabel();
}
void KnobLineCoronaControl::OnMouseOut()
{
if (!mHasMouse)
{
HideLabel();
}
}
void KnobLineCoronaControl::ShowLabel()
{
if (mLabelControl != nullptr)
{
// if our label was hidden when we attached it,
// that means we should reposition it below the knob before displaying it.
if (mSharedLabel)
{
IRECT targetRect = mRECT;
targetRect.T = targetRect.B - 16;
IRECT& labelRect = *mLabelControl->GetRECT();
labelRect = targetRect;
mLabelControl->SetTargetArea(targetRect);
}
SetValDisplayControl(mLabelControl);
SetDirty();
}
}
void KnobLineCoronaControl::HideLabel()
{
SetValDisplayControl(nullptr);
if (mLabelControl != nullptr)
{
mLabelControl->SetTextFromPlug(mLabelString.Get());
SetDirty(false);
}
}
void KnobLineCoronaControl::SetLabelControl(ITextControl* control, bool bShared)
{
mLabelControl = control;
mSharedLabel = bShared;
if (mLabelControl != nullptr)
{
mLabelString.Set(mLabelControl->GetTextForPlug());
}
else
{
mLabelString.Set("");
mSharedLabel = false;
}
// if our label control is shared, extend our rect to include where we will place the label when showing it.
// this ensures that the area the label draws in will be cleared when the labels is moved elsewhere.
if (mSharedLabel)
{
mRECT.L -= 15;
mRECT.R += 15;
mRECT.B += 15;
}
}
#pragma endregion KnobLineCoronaControl