VSTControlGTK.cpp

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  VSTControlGTK.cpp
 
  Leland Lucius
 
**********************************************************************/
 
#include "VSTControlGTK.h"
 
#include <wx/dynlib.h>
#include <wx/sizer.h>
 
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
 
struct VSTControl::Impl
{
   Display *display { nullptr };
   Window window { 0 };
 
   ~Impl()
   {
      display = nullptr;
      window = 0;
   }
};
 
VSTControl::VSTControl()
{
   
}
 
VSTControl::~VSTControl()
{
   if (mImpl)
      mLink->callDispatcher(effEditClose, 0, (intptr_t)mImpl->display, (void *)mImpl->window, 0.0);
}
 
bool VSTControl::Create(wxWindow *parent, VSTLink *link)
{
   if (!VSTControlBase::Create(parent, link))
   {
      return false;
   }
 
   mImpl = std::make_unique<VSTControl::Impl>();
 
   VstRect *rect;
 
   // Some effects like to have us get their rect before opening them.
   mLink->callDispatcher(effEditGetRect, 0, 0, &rect, 0.0);
 
   // Make sure the parent has a window
   if (!gtk_widget_get_realized(GTK_WIDGET(m_wxwindow)))
   {
      gtk_widget_realize(GTK_WIDGET(m_wxwindow));
   }
 
   GdkWindow *gwin = gtk_widget_get_window(GTK_WIDGET(m_wxwindow));
   mImpl->display = GDK_WINDOW_XDISPLAY(gwin);
   mImpl->window = GDK_WINDOW_XID(gwin);
 
   mLink->callDispatcher(effEditOpen, 0, (intptr_t)mImpl->display, (void *)mImpl->window, 0.0);
 
   // Get the final bounds of the effect GUI
   mLink->callDispatcher(effEditGetRect, 0, 0, &rect, 0.0);
 
   // Add the effect host window to the layout
   SetMinSize(wxSize(rect->right - rect->left, rect->bottom - rect->top));
 
   // Must get the size again since SetPeer() could cause it to change
   SetInitialSize(GetMinSize());
 
   return true;
}