130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
// This file is part of VSTGUI. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this
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// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
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#include "vst3padcontroller.h"
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namespace VSTGUI {
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//------------------------------------------------------------------------
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PadController::PadController (IController* baseController,
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Steinberg::Vst::EditController* editController,
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Steinberg::Vst::Parameter* xParam, Steinberg::Vst::Parameter* yParam)
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: DelegationController (baseController)
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, editController (editController)
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, xParam (xParam)
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, yParam (yParam)
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, padControl (nullptr)
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{
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if (xParam)
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xParam->addDependent (this);
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if (yParam)
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yParam->addDependent (this);
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}
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//------------------------------------------------------------------------
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PadController::~PadController ()
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{
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if (xParam)
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xParam->removeDependent (this);
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if (yParam)
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yParam->removeDependent (this);
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}
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//------------------------------------------------------------------------
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CView* PadController::verifyView (CView* view, const UIAttributes& attributes,
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const IUIDescription* description)
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{
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auto* pad = dynamic_cast<CXYPad*> (view);
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if (pad)
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{
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padControl = pad;
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padControl->setListener (this);
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update (xParam, kChanged);
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}
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return view;
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}
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//------------------------------------------------------------------------
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void PadController::valueChanged (CControl* pControl)
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{
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if (pControl == padControl && xParam && yParam)
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{
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float x, y;
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CXYPad::calculateXY (pControl->getValue (), x, y);
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auto xId = xParam->getInfo ().id;
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if (editController->setParamNormalized (xId, x) == Steinberg::kResultTrue)
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editController->performEdit (xId, editController->getParamNormalized (xId));
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auto yId = yParam->getInfo ().id;
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if (editController->setParamNormalized (yId, y) == Steinberg::kResultTrue)
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editController->performEdit (yId, editController->getParamNormalized (yId));
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}
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else
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{
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DelegationController::valueChanged (pControl);
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}
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}
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//------------------------------------------------------------------------
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void PadController::controlBeginEdit (CControl* pControl)
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{
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if (pControl == padControl && xParam && yParam)
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{
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editController->startGroupEdit ();
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editController->beginEdit (xParam->getInfo ().id);
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editController->beginEdit (yParam->getInfo ().id);
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}
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else
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{
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DelegationController::controlBeginEdit (pControl);
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}
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}
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//------------------------------------------------------------------------
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void PadController::controlEndEdit (CControl* pControl)
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{
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if (pControl == padControl && xParam && yParam)
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{
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editController->endEdit (xParam->getInfo ().id);
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editController->endEdit (yParam->getInfo ().id);
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editController->finishGroupEdit ();
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}
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else
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{
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DelegationController::controlEndEdit (pControl);
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}
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}
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//------------------------------------------------------------------------
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void PLUGIN_API PadController::update (Steinberg::FUnknown* changedUnknown,
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Steinberg::int32 message)
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{
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if (padControl)
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{
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auto* p = Steinberg::FCast<Steinberg::Vst::Parameter> (changedUnknown);
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if (p && (p == xParam || p == yParam))
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{
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if (message == kChanged)
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{
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float value =
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CXYPad::calculateValue (xParam->getNormalized (), yParam->getNormalized ());
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padControl->setValue (value);
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padControl->invalid ();
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}
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else if (message == kWillDestroy)
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{
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if (xParam)
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xParam->removeDependent (this);
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if (yParam)
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yParam->removeDependent (this);
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xParam = nullptr;
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yParam = nullptr;
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}
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}
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}
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}
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} // namespace
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