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/*
vst~ - VST plugin object for PD
based on the work of Jarno Seppänen and Mark Williamson
Copyright (c)2003-2004 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#if FLEXT_OS != FLEXT_OS_WIN
// only Windows code is situated in this file
#error Wrong implementation
#endif
#include <map>
#include <windows.h>
typedef std::map<flext::thrid_t,VSTPlugin *> WndMap;
static WndMap wndmap;
static flext::ThrMutex mapmutex;
#define TIMER_INTERVAL 25
#define WCLNAME "vst~-class"
static LRESULT CALLBACK wndproc(HWND hwnd,UINT msg,WPARAM wp,LPARAM lp)
{
mapmutex.Lock();
VSTPlugin *plug = wndmap[flext::GetThreadId()];
mapmutex.Unlock();
FLEXT_ASSERT(plug != NULL);
LRESULT res = 0;
switch(msg) {
case WM_CREATE:
// Initialize the window.
plug->StartEditing(hwnd);
break;
case WM_CLOSE:
#ifdef FLEXT_DEBUG
flext::post("WM_CLOSE");
#endif
// plug could already have been unloaded...
plug->StopEditing(); // this sets plug->hwnd = NULL
DestroyWindow(hwnd);
break;
case WM_DESTROY:
#ifdef FLEXT_DEBUG
flext::post("WM_DESTROY");
#endif
// stop editor thread
PostQuitMessage(0);
break;
case WM_TIMER: // fall through
case WM_ENTERIDLE:
plug->EditorIdle();
break;
case WM_MOVE: {
// ignore after WM_CLOSE so that x,y positions are preserved
if(!plug->IsEdited()) break;
WORD wx = LOWORD(lp),wy = HIWORD(lp);
short x = reinterpret_cast<short &>(wx),y = reinterpret_cast<short &>(wy);
// x and y are the coordinates of the client rect (= actual VST interface)
plug->SetPos(x,y,false);
#ifdef FLEXT_DEBUG
flext::post("WM_MOVE x/y=%i/%i",x,y);
#endif
break;
}
#if 0 // NOT needed for Windows
case WM_PAINT: {
// Paint the window's client area.
RECT rect;
GetUpdateRect(hwnd,&rect,FALSE);
ERect erect;
erect.left = rect.left;
erect.top = rect.top;
erect.right = rect.right;
erect.bottom = rect.bottom;
plug->Paint(erect);
break;
}
#endif
#if 0 //def FLEXT_DEBUG
case WM_SIZE: {
WORD wx = LOWORD(lp),wy = HIWORD(lp);
short x = reinterpret_cast<short &>(wx),y = reinterpret_cast<short &>(wy);
// x and y are the coordinates of the client rect (= actual VST interface)
flext::post("WM_SIZE x/y=%i/%i",x,y);
break;
}
#endif
default:
#ifdef FLEXT_DEBUG
flext::post("WND MSG %i, WP=%i, lp=%i",msg,wp,lp);
#endif
res = DefWindowProc(hwnd,msg,wp,lp);
}
return res;
}
static void windowsize(HWND wnd,int x,int y,int w,int h,bool caption,LONG flags = 0)
{
WINDOWINFO winfo;
winfo.cbSize = sizeof(winfo);
GetWindowInfo(wnd,&winfo);
int cy = caption?GetSystemMetrics(SM_CYCAPTION):0;
SetWindowPos(wnd,HWND_TOP,
x-(winfo.rcClient.left-winfo.rcWindow.left),
y-(winfo.rcClient.top-winfo.rcWindow.top),
w+winfo.cxWindowBorders*2,
h+cy+winfo.cyWindowBorders*2,
flags
);
}
static void threadfun(flext::thr_params *p)
{
flext::RelPriority(-2);
VSTPlugin *plug = (VSTPlugin *)p;
HINSTANCE hinstance = (HINSTANCE)GetModuleHandle(NULL);
flext::thrid_t thrid = flext::GetThreadId();
mapmutex.Lock();
wndmap[thrid] = plug;
mapmutex.Unlock();
char tmp[256];
sprintf(tmp,"vst~ - %s",plug->GetName());
HWND wnd = CreateWindow(
WCLNAME,tmp,
(plug->GetCaption()?WS_BORDER|WS_CAPTION:0)|WS_POPUP|WS_SYSMENU|WS_MINIMIZEBOX,
CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,
NULL,NULL,
hinstance,NULL
);
if(!wnd)
FLEXT_LOG1("wnd == NULL: %i",GetLastError());
else {
// plug->Dispatch(effEditOpen , 0 , 0 , wnd, 0.0f ); // Done in WNDPROC!!
/*
CString str = theApp->GetProfileString( "VSTPos" , plug->GetName() , "10,10");
int idx = str.Find(",");
CString x = str.Left( idx );
CString y = str.Right( idx );
printf(" index is %d left is %s and right is %s" , idx , x , y);
*/
// plug->Dispatch(effEditTop,0,0, 0,0.0f);
// printf("Dispatched to the top\n");
SetTimer(wnd,0,TIMER_INTERVAL,NULL);
ERect r;
plug->GetEditorRect(r);
windowsize(wnd,plug->GetX(),plug->GetY(),r.right-r.left,r.bottom-r.top,plug->GetCaption(),SWP_SHOWWINDOW);
#ifdef FLEXT_DEBUG
flext::post("Editor rect left/top=%i/%i, right/bottom=%i/%i",r.left,r.top,r.right,r.bottom);
#endif
// SetFocus();
// Message pump
MSG msg;
BOOL bRet;
while( (bRet = GetMessage( &msg, NULL, 0, 0 )) != 0) {
if (bRet == -1) {
// handle the error and possibly exit
FLEXT_LOG1("GetMessage error: %i",GetLastError());
}
else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
}
// UnregisterClass(wcx.lpszClassName,hinstance);
mapmutex.Lock();
wndmap.erase(thrid);
mapmutex.Unlock();
}
void SetupEditor()
{
HINSTANCE hinstance = (HINSTANCE)GetModuleHandle(NULL);
// Fill in the window class structure with parameters that describe the main window.
WNDCLASS wcx;
wcx.style = CS_DBLCLKS; // | CS_HREDRAW | CS_VREDRAW; // redraw if size changes
wcx.lpfnWndProc = wndproc; // points to window procedure
wcx.cbClsExtra = 0; // no extra class memory
wcx.cbWndExtra = 0; // no extra window memory
wcx.hInstance = hinstance; // handle to instance
wcx.hIcon = NULL; //LoadIcon(NULL, IDI_APPLICATION); // predefined app. icon
wcx.hCursor = LoadCursor(NULL, IDC_ARROW); // predefined arrow
wcx.hbrBackground = NULL; //GetStockObject(WHITE_BRUSH); // white background brush
wcx.lpszMenuName = NULL; // name of menu resource
wcx.lpszClassName = WCLNAME; // name of window class
ATOM at = RegisterClass(&wcx);
FLEXT_ASSERT(at);
}
void StartEditor(VSTPlugin *p)
{
#ifdef FLEXT_DEBUG
flext::post("Start editor 1");
#endif
flext::LaunchThread(threadfun,reinterpret_cast<flext::thr_params *>(p));
#ifdef FLEXT_DEBUG
flext::post("Start editor 2");
#endif
}
void StopEditor(VSTPlugin *p)
{
#ifdef FLEXT_DEBUG
flext::post("Stop editor 1");
#endif
PostMessage(p->EditorHandle(),WM_CLOSE,0,0);
flext::StopThread(threadfun,reinterpret_cast<flext::thr_params *>(p));
#ifdef FLEXT_DEBUG
flext::post("Stop editor 2");
#endif
}
void ShowEditor(VSTPlugin *p,bool show)
{
ShowWindow(p->EditorHandle(),show);
}
void MoveEditor(VSTPlugin *p,int x,int y)
{
HWND wnd = p->EditorHandle();
WINDOWINFO winfo;
winfo.cbSize = sizeof(winfo);
GetWindowInfo(wnd,&winfo);
SetWindowPos(wnd,NULL,
x-(winfo.rcClient.left-winfo.rcWindow.left),y-(winfo.rcClient.top-winfo.rcWindow.top),
0,0,
SWP_NOSIZE|SWP_NOZORDER
);
}
void SizeEditor(VSTPlugin *p,int x,int y)
{
SetWindowPos(p->EditorHandle(),NULL,0,0,x,y,SWP_NOMOVE|SWP_NOZORDER);
}
void CaptionEditor(VSTPlugin *plug,bool c)
{
HWND wnd = plug->EditorHandle();
LONG ns,style = GetWindowLong(wnd,GWL_STYLE);
if(c) ns = style|WS_BORDER|WS_CAPTION;
else ns = style&~(WS_BORDER|WS_CAPTION);
if(ns != style) {
SetWindowLong(wnd,GWL_STYLE,ns);
ERect r; plug->GetEditorRect(r);
windowsize(wnd,plug->GetX(),plug->GetY(),r.right-r.left,r.bottom-r.top,c,SWP_FRAMECHANGED);
}
}
void TitleEditor(VSTPlugin *p,const char *t)
{
SetWindowText(p->EditorHandle(),t);
}
bool IsEditorShown(const VSTPlugin *p)
{
return IsWindowVisible(p->EditorHandle()) != FALSE;
}
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