IVPresetManagerControl.h

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/*
 ==============================================================================

 This file is part of the iPlug 2 library. Copyright (C) the iPlug 2 developers.

 See LICENSE.txt for  more info.

 ==============================================================================
*/

#pragma once

#include "IControl.h"

#include "IPlugPluginBase.h"

BEGIN_IPLUG_NAMESPACE
BEGIN_IGRAPHICS_NAMESPACE

class IVBakedPresetManagerControl : public IControl
{
public:
  IVBakedPresetManagerControl(const IRECT& bounds, const IVStyle& style = DEFAULT_STYLE)
  : IControl(bounds)
  , mStyle(style)
  {
    mIgnoreMouse = true;
  }
  
  void Draw(IGraphics& g) override { /* NO-OP */ }
  
  void RestorePreset(IPluginBase* pluginBase, int presetIdx)
  {
    pluginBase->RestorePreset(presetIdx);

    WDL_String str;
    str.SetFormatted(32, "Preset %i: %s", presetIdx + 1, pluginBase->GetPresetName(presetIdx));
    mPresetNameButton->SetLabelStr(str.Get());
  }
  
  void OnPopupMenuSelection(IPopupMenu* pSelectedMenu, int valIdx) override
  {
    if (pSelectedMenu)
    {
      IPopupMenu::Item* pItem = pSelectedMenu->GetChosenItem();

      if (pItem)
      {
        IPluginBase* pluginBase = dynamic_cast<IPluginBase*>(GetDelegate());
        RestorePreset(pluginBase, pSelectedMenu->GetChosenItemIdx());
      }
    }
  }

  void OnAttached() override
  {
    IRECT sections = mRECT.GetPadded(-5.f);
    
    auto prevPresetFunc = [&](IControl* pCaller) {
      IPluginBase* pluginBase = dynamic_cast<IPluginBase*>(pCaller->GetDelegate());

      int presetIdx = pluginBase->GetCurrentPresetIdx();
      int nPresets = pluginBase->NPresets();

      presetIdx--;
      
      if (presetIdx < 0)
        presetIdx = nPresets - 1;
      
      RestorePreset(pluginBase, presetIdx);
    };

    auto nextPresetFunc = [&](IControl* pCaller) {
      IPluginBase* pluginBase = dynamic_cast<IPluginBase*>(pCaller->GetDelegate());

      int presetIdx = pluginBase->GetCurrentPresetIdx();
      int nPresets = pluginBase->NPresets();

      presetIdx++;

      if (presetIdx >= nPresets)
        presetIdx = 0;

      RestorePreset(pluginBase, presetIdx);
    };

    auto choosePresetFunc = [&](IControl* pCaller) {
      mMenu.Clear();
      
      IPluginBase* pluginBase = dynamic_cast<IPluginBase*>(pCaller->GetDelegate());

      int currentPresetIdx = pluginBase->GetCurrentPresetIdx();
      int nPresets = pluginBase->NPresets();
      
      for (int i = 0; i < nPresets; i++) {
        const char* str = pluginBase->GetPresetName(i);
        if (i == currentPresetIdx)
          mMenu.AddItem(str, -1, IPopupMenu::Item::kChecked);
        else
          mMenu.AddItem(str);
      }
      
      pCaller->GetUI()->CreatePopupMenu(*this, mMenu, pCaller->GetRECT());
    };

    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromLeft(50), SplashClickActionFunc, "<", mStyle))->SetAnimationEndActionFunction(prevPresetFunc);
    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromLeft(50), SplashClickActionFunc, ">", mStyle))->SetAnimationEndActionFunction(nextPresetFunc);
//    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromRight(100), SplashClickActionFunc, "Load", mStyle))->SetAnimationEndActionFunction(loadPresetFunc);
    GetUI()->AttachControl(mPresetNameButton = new IVButtonControl(sections, SplashClickActionFunc, "Choose Preset...", mStyle))->SetAnimationEndActionFunction(choosePresetFunc);
  }

private:
  IPopupMenu mMenu;
  IVButtonControl* mPresetNameButton = nullptr;
  IVStyle mStyle;
};

class IVDiskPresetManagerControl : public IDirBrowseControlBase
{
public:
  IVDiskPresetManagerControl(const IRECT& bounds, const char* presetPath, const char* fileExtension, bool showFileExtensions = true, const IVStyle& style = DEFAULT_STYLE)
  : IDirBrowseControlBase(bounds, fileExtension, showFileExtensions)
  , mStyle(style)
  {
    mIgnoreMouse = true;
    AddPath(presetPath, "");
    SetupMenu();
  }
  
  void Draw(IGraphics& g) override { /* NO-OP */ }

  void OnPopupMenuSelection(IPopupMenu* pSelectedMenu, int valIdx) override
  {
    if (pSelectedMenu)
    {
      IPopupMenu::Item* pItem = pSelectedMenu->GetChosenItem();

      if (pItem)
      {
        mSelectedIndex = mItems.Find(pItem);
        LoadPresetAtCurrentIndex();
      }
    }
  }

  void OnAttached() override
  {
    IRECT sections = mRECT.GetPadded(-5.f);

    auto prevPresetFunc = [&](IControl* pCaller) {
      mSelectedIndex--;

      if (mSelectedIndex < 0)
        mSelectedIndex = NItems() - 1;

      LoadPresetAtCurrentIndex();
    };

    auto nextPresetFunc = [&](IControl* pCaller) {
      mSelectedIndex++;

      if (mSelectedIndex >= NItems())
        mSelectedIndex = 0;

      LoadPresetAtCurrentIndex();
    };

    auto loadPresetFunc = [&](IControl* pCaller) {
      WDL_String fileName;
      WDL_String path;
      pCaller->GetUI()->PromptForFile(fileName, path, EFileAction::Open, mExtension.Get());

      if (fileName.GetLength())
        mPresetNameButton->SetLabelStr(fileName.Get());
    };

    auto choosePresetFunc = [&](IControl* pCaller) { pCaller->GetUI()->CreatePopupMenu(*this, mMainMenu, pCaller->GetRECT()); };

    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromLeft(50), SplashClickActionFunc, "<", mStyle))->SetAnimationEndActionFunction(prevPresetFunc);
    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromLeft(50), SplashClickActionFunc, ">", mStyle))->SetAnimationEndActionFunction(nextPresetFunc);
    GetUI()->AttachControl(new IVButtonControl(sections.ReduceFromRight(100), SplashClickActionFunc, "Load", mStyle))->SetAnimationEndActionFunction(loadPresetFunc);
    GetUI()->AttachControl(mPresetNameButton = new IVButtonControl(sections, SplashClickActionFunc, "Choose Preset...", mStyle))->SetAnimationEndActionFunction(choosePresetFunc);
  }

  void LoadPresetAtCurrentIndex()
  {
    if (mSelectedIndex > -1 && mSelectedIndex < mItems.GetSize())
    {
      IPopupMenu::Item* pItem = mItems.Get(mSelectedIndex);

      //if (PLUG()->LoadPresetFromVSTPreset(mFiles.Get(pItem->GetTag())->Get()))
      //{
      //  PLUG()->ModifyCurrentPreset(PLUG()->GetPatchName());
      //  PLUG()->InformHostOfPresetChange();
        mPresetNameButton->SetLabelStr(pItem->GetText());
      //}
    }
  }

private:
  IVButtonControl* mPresetNameButton = nullptr;
  IVStyle mStyle;
};

END_IGRAPHICS_NAMESPACE
END_IPLUG_NAMESPACE