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//-------------------------------------------------------------------------------------------------------
// VST Plug-Ins SDK
// Version 2.4 $Date: 2006/11/13 09:08:28 $
//
// Category : VST 2.x SDK Samples
// Filename : sdeditor.cpp
// Created by : Steinberg Media Technologies
// Description : Simple Surround Delay plugin with Editor using VSTGUI
//
// � 2006, Steinberg Media Technologies, All Rights Reserved
//-------------------------------------------------------------------------------------------------------
#ifndef __sdeditor__
#include "sdeditor.h"
#endif
#ifndef __adelay__
#include "../adelay.h"
#endif
#include <stdio.h>
//-----------------------------------------------------------------------------
// resource id's
enum {
// bitmaps
kBackgroundId = 128,
kFaderBodyId,
kFaderHandleId,
// positions
kFaderX = 18,
kFaderY = 10,
kFaderInc = 18,
kDisplayX = 10,
kDisplayY = 184,
kDisplayXWidth = 30,
kDisplayHeight = 14
};
//-----------------------------------------------------------------------------
// prototype string convert float -> percent
void percentStringConvert (float value, char* string);
void percentStringConvert (float value, char* string)
{
sprintf (string, "%d%%", (int)(100 * value + 0.5f));
}
//-----------------------------------------------------------------------------
// SDEditor class implementation
//-----------------------------------------------------------------------------
SDEditor::SDEditor (AudioEffect *effect)
: AEffGUIEditor (effect)
{
delayFader = 0;
feedbackFader = 0;
volumeFader = 0;
delayDisplay = 0;
feedbackDisplay = 0;
volumeDisplay = 0;
// load the background bitmap
// we don't need to load all bitmaps, this could be done when open is called
hBackground = new CBitmap (kBackgroundId);
// init the size of the plugin
rect.left = 0;
rect.top = 0;
rect.right = (short)hBackground->getWidth ();
rect.bottom = (short)hBackground->getHeight ();
}
//-----------------------------------------------------------------------------
SDEditor::~SDEditor ()
{
// free the background bitmap
if (hBackground)
hBackground->forget ();
hBackground = 0;
}
//-----------------------------------------------------------------------------
bool SDEditor::open (void *ptr)
{
// !!! always call this !!!
AEffGUIEditor::open (ptr);
//--load some bitmaps
CBitmap* hFaderBody = new CBitmap (kFaderBodyId);
CBitmap* hFaderHandle = new CBitmap (kFaderHandleId);
//--init background frame-----------------------------------------------
// We use a local CFrame object so that calls to setParameter won't call into objects which may not exist yet.
// If all GUI objects are created we assign our class member to this one. See bottom of this method.
CRect size (0, 0, hBackground->getWidth (), hBackground->getHeight ());
CFrame* lFrame = new CFrame (size, ptr, this);
lFrame->setBackground (hBackground);
//--init the faders------------------------------------------------
int minPos = kFaderY;
int maxPos = kFaderY + hFaderBody->getHeight () - hFaderHandle->getHeight () - 1;
CPoint point (0, 0);
CPoint offset (1, 0);
// Delay
size (kFaderX, kFaderY,
kFaderX + hFaderBody->getWidth (), kFaderY + hFaderBody->getHeight ());
delayFader = new CVerticalSlider (size, this, kDelay, minPos, maxPos, hFaderHandle, hFaderBody, point);
delayFader->setOffsetHandle (offset);
delayFader->setValue (effect->getParameter (kDelay));
lFrame->addView (delayFader);
// FeedBack
size.offset (kFaderInc + hFaderBody->getWidth (), 0);
feedbackFader = new CVerticalSlider (size, this, kFeedBack, minPos, maxPos, hFaderHandle, hFaderBody, point);
feedbackFader->setOffsetHandle (offset);
feedbackFader->setValue (effect->getParameter (kFeedBack));
lFrame->addView (feedbackFader);
// Volume
size.offset (kFaderInc + hFaderBody->getWidth (), 0);
volumeFader = new CVerticalSlider (size, this, kOut, minPos, maxPos, hFaderHandle, hFaderBody, point);
volumeFader->setOffsetHandle (offset);
volumeFader->setValue (effect->getParameter (kOut));
volumeFader->setDefaultValue (0.75f);
lFrame->addView (volumeFader);
//--init the display------------------------------------------------
// Delay
size (kDisplayX, kDisplayY,
kDisplayX + kDisplayXWidth, kDisplayY + kDisplayHeight);
delayDisplay = new CParamDisplay (size, 0, kCenterText);
delayDisplay->setFont (kNormalFontSmall);
delayDisplay->setFontColor (kWhiteCColor);
delayDisplay->setBackColor (kBlackCColor);
delayDisplay->setFrameColor (kBlueCColor);
delayDisplay->setValue (effect->getParameter (kDelay));
lFrame->addView (delayDisplay);
// FeedBack
size.offset (kFaderInc + hFaderBody->getWidth (), 0);
feedbackDisplay = new CParamDisplay (size, 0, kCenterText);
feedbackDisplay->setFont (kNormalFontSmall);
feedbackDisplay->setFontColor (kWhiteCColor);
feedbackDisplay->setBackColor (kBlackCColor);
feedbackDisplay->setFrameColor (kBlueCColor);
feedbackDisplay->setValue (effect->getParameter (kFeedBack));
feedbackDisplay->setStringConvert (percentStringConvert);
lFrame->addView (feedbackDisplay);
// Volume
size.offset (kFaderInc + hFaderBody->getWidth (), 0);
volumeDisplay = new CParamDisplay (size, 0, kCenterText);
volumeDisplay->setFont (kNormalFontSmall);
volumeDisplay->setFontColor (kWhiteCColor);
volumeDisplay->setBackColor (kBlackCColor);
volumeDisplay->setFrameColor (kBlueCColor);
volumeDisplay->setValue (effect->getParameter (kOut));
volumeDisplay->setStringConvert (percentStringConvert);
lFrame->addView (volumeDisplay);
// Note : in the constructor of a CBitmap, the number of references is set to 1.
// Then, each time the bitmap is used (for hinstance in a vertical slider), this
// number is incremented.
// As a consequence, everything happens as if the constructor by itself was adding
// a reference. That's why we need til here a call to forget ().
// You mustn't call delete here directly, because the bitmap is used by some CControls...
// These "rules" apply to the other VSTGUI objects too.
hFaderBody->forget ();
hFaderHandle->forget ();
frame = lFrame;
return true;
}
//-----------------------------------------------------------------------------
void SDEditor::close ()
{
delete frame;
frame = 0;
}
//-----------------------------------------------------------------------------
void SDEditor::setParameter (VstInt32 index, float value)
{
if (frame == 0)
return;
// called from ADelayEdit
switch (index)
{
case kDelay:
if (delayFader)
delayFader->setValue (effect->getParameter (index));
if (delayDisplay)
delayDisplay->setValue (effect->getParameter (index));
break;
case kFeedBack:
if (feedbackFader)
feedbackFader->setValue (effect->getParameter (index));
if (feedbackDisplay)
feedbackDisplay->setValue (effect->getParameter (index));
break;
case kOut:
if (volumeFader)
volumeFader->setValue (effect->getParameter (index));
if (volumeDisplay)
volumeDisplay->setValue (effect->getParameter (index));
break;
}
}
//-----------------------------------------------------------------------------
void SDEditor::valueChanged (CDrawContext* context, CControl* control)
{
long tag = control->getTag ();
switch (tag)
{
case kDelay:
case kFeedBack:
case kOut:
effect->setParameterAutomated (tag, control->getValue ());
control->setDirty ();
break;
}
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
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