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vlc/activex/plugin.cpp

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/*****************************************************************************
* plugin.cpp: ActiveX control for VLC
*****************************************************************************
* Copyright (C) 2006 the VideoLAN team
*
* Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include "plugin.h"
#include "oleobject.h"
#include "olecontrol.h"
#include "oleinplaceobject.h"
#include "oleinplaceactiveobject.h"
#include "persistpropbag.h"
#include "persiststreaminit.h"
#include "persiststorage.h"
#include "provideclassinfo.h"
#include "connectioncontainer.h"
#include "objectsafety.h"
#include "vlccontrol.h"
#include "vlccontrol2.h"
#include "viewobject.h"
#include "dataobject.h"
#include "supporterrorinfo.h"
#include "utils.h"
#include <string.h>
#include <winreg.h>
#include <winuser.h>
#include <servprov.h>
#include <shlwapi.h>
#include <wininet.h>
using namespace std;
////////////////////////////////////////////////////////////////////////
//class factory
static LRESULT CALLBACK VLCInPlaceClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
VLCPlugin *p_instance = reinterpret_cast<VLCPlugin *>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
switch( uMsg )
{
case WM_ERASEBKGND:
return 1L;
case WM_PAINT:
PAINTSTRUCT ps;
RECT pr;
if( GetUpdateRect(hWnd, &pr, FALSE) )
{
RECT bounds;
GetClientRect(hWnd, &bounds);
BeginPaint(hWnd, &ps);
p_instance->onPaint(ps.hdc, bounds, pr);
EndPaint(hWnd, &ps);
}
return 0L;
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
};
VLCPluginClass::VLCPluginClass(LONG *p_class_ref, HINSTANCE hInstance, REFCLSID rclsid) :
_p_class_ref(p_class_ref),
_hinstance(hInstance),
_classid(rclsid),
_inplace_picture(NULL)
{
WNDCLASS wClass;
if( ! GetClassInfo(hInstance, getInPlaceWndClassName(), &wClass) )
{
wClass.style = CS_NOCLOSE|CS_DBLCLKS;
wClass.lpfnWndProc = VLCInPlaceClassWndProc;
wClass.cbClsExtra = 0;
wClass.cbWndExtra = 0;
wClass.hInstance = hInstance;
wClass.hIcon = NULL;
wClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wClass.hbrBackground = NULL;
wClass.lpszMenuName = NULL;
wClass.lpszClassName = getInPlaceWndClassName();
_inplace_wndclass_atom = RegisterClass(&wClass);
}
else
{
_inplace_wndclass_atom = 0;
}
HBITMAP hbitmap = (HBITMAP)LoadImage(getHInstance(), TEXT("INPLACE-PICT"), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
if( NULL != hbitmap )
{
PICTDESC pictDesc;
pictDesc.cbSizeofstruct = sizeof(PICTDESC);
pictDesc.picType = PICTYPE_BITMAP;
pictDesc.bmp.hbitmap = hbitmap;
pictDesc.bmp.hpal = NULL;
if( FAILED(OleCreatePictureIndirect(&pictDesc, IID_IPicture, TRUE, reinterpret_cast<LPVOID*>(&_inplace_picture))) )
_inplace_picture = NULL;
}
AddRef();
};
VLCPluginClass::~VLCPluginClass()
{
if( 0 != _inplace_wndclass_atom )
UnregisterClass(MAKEINTATOM(_inplace_wndclass_atom), _hinstance);
if( NULL != _inplace_picture )
_inplace_picture->Release();
};
STDMETHODIMP VLCPluginClass::QueryInterface(REFIID riid, void **ppv)
{
if( NULL == ppv )
return E_INVALIDARG;
if( (IID_IUnknown == riid)
|| (IID_IClassFactory == riid) )
{
AddRef();
*ppv = reinterpret_cast<LPVOID>(this);
return NOERROR;
}
*ppv = NULL;
return E_NOINTERFACE;
};
STDMETHODIMP_(ULONG) VLCPluginClass::AddRef(void)
{
return InterlockedIncrement(_p_class_ref);
};
STDMETHODIMP_(ULONG) VLCPluginClass::Release(void)
{
ULONG refcount = InterlockedDecrement(_p_class_ref);
if( 0 == refcount )
{
delete this;
return 0;
}
return refcount;
};
STDMETHODIMP VLCPluginClass::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, void **ppv)
{
if( NULL == ppv )
return E_POINTER;
*ppv = NULL;
if( (NULL != pUnkOuter) && (IID_IUnknown != riid) ) {
return CLASS_E_NOAGGREGATION;
}
VLCPlugin *plugin = new VLCPlugin(this, pUnkOuter);
if( NULL != plugin )
{
HRESULT hr = plugin->QueryInterface(riid, ppv);
// the following will destroy the object if QueryInterface() failed
plugin->Release();
return hr;
}
return E_OUTOFMEMORY;
};
STDMETHODIMP VLCPluginClass::LockServer(BOOL fLock)
{
if( fLock )
AddRef();
else
Release();
return S_OK;
};
////////////////////////////////////////////////////////////////////////
VLCPlugin::VLCPlugin(VLCPluginClass *p_class, LPUNKNOWN pUnkOuter) :
_inplacewnd(NULL),
_p_class(p_class),
_i_ref(1UL),
_p_libvlc(NULL),
_i_codepage(CP_ACP),
_b_usermode(TRUE)
{
p_class->AddRef();
vlcOleControl = new VLCOleControl(this);
vlcOleInPlaceObject = new VLCOleInPlaceObject(this);
vlcOleInPlaceActiveObject = new VLCOleInPlaceActiveObject(this);
vlcPersistStorage = new VLCPersistStorage(this);
vlcPersistStreamInit = new VLCPersistStreamInit(this);
vlcPersistPropertyBag = new VLCPersistPropertyBag(this);
vlcProvideClassInfo = new VLCProvideClassInfo(this);
vlcConnectionPointContainer = new VLCConnectionPointContainer(this);
vlcObjectSafety = new VLCObjectSafety(this);
vlcControl = new VLCControl(this);
vlcControl2 = new VLCControl2(this);
vlcViewObject = new VLCViewObject(this);
vlcDataObject = new VLCDataObject(this);
vlcOleObject = new VLCOleObject(this);
vlcSupportErrorInfo = new VLCSupportErrorInfo(this);
// configure controlling IUnknown interface for implemented interfaces
this->pUnkOuter = (NULL != pUnkOuter) ? pUnkOuter : dynamic_cast<LPUNKNOWN>(this);
// default picure
_p_pict = p_class->getInPlacePict();
// make sure that persistable properties are initialized
onInit();
};
VLCPlugin::~VLCPlugin()
{
delete vlcSupportErrorInfo;
delete vlcOleObject;
delete vlcDataObject;
delete vlcViewObject;
delete vlcControl2;
delete vlcControl;
delete vlcConnectionPointContainer;
delete vlcProvideClassInfo;
delete vlcPersistPropertyBag;
delete vlcPersistStreamInit;
delete vlcPersistStorage;
delete vlcOleInPlaceActiveObject;
delete vlcOleInPlaceObject;
delete vlcObjectSafety;
delete vlcOleControl;
if( _p_pict )
_p_pict->Release();
SysFreeString(_bstr_mrl);
SysFreeString(_bstr_baseurl);
_p_class->Release();
};
STDMETHODIMP VLCPlugin::QueryInterface(REFIID riid, void **ppv)
{
if( NULL == ppv )
return E_INVALIDARG;
if( IID_IUnknown == riid )
*ppv = reinterpret_cast<LPVOID>(this);
else if( IID_IOleObject == riid )
*ppv = reinterpret_cast<LPVOID>(vlcOleObject);
else if( IID_IOleControl == riid )
*ppv = reinterpret_cast<LPVOID>(vlcOleControl);
else if( IID_IOleWindow == riid )
*ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
else if( IID_IOleInPlaceObject == riid )
*ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
else if( IID_IOleInPlaceActiveObject == riid )
*ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceActiveObject);
else if( IID_IPersist == riid )
*ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
else if( IID_IPersistStreamInit == riid )
*ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
else if( IID_IPersistStorage == riid )
*ppv = reinterpret_cast<LPVOID>(vlcPersistStorage);
else if( IID_IPersistPropertyBag == riid )
*ppv = reinterpret_cast<LPVOID>(vlcPersistPropertyBag);
else if( IID_IProvideClassInfo == riid )
*ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
else if( IID_IProvideClassInfo2 == riid )
*ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
else if( IID_IConnectionPointContainer == riid )
*ppv = reinterpret_cast<LPVOID>(vlcConnectionPointContainer);
else if( IID_IObjectSafety == riid )
*ppv = reinterpret_cast<LPVOID>(vlcObjectSafety);
else if( IID_IDispatch == riid )
*ppv = (CLSID_VLCPlugin2 == getClassID()) ?
reinterpret_cast<LPVOID>(vlcControl2) :
reinterpret_cast<LPVOID>(vlcControl);
else if( IID_IVLCControl == riid )
*ppv = reinterpret_cast<LPVOID>(vlcControl);
else if( IID_IVLCControl2 == riid )
*ppv = reinterpret_cast<LPVOID>(vlcControl2);
else if( IID_IViewObject == riid )
*ppv = reinterpret_cast<LPVOID>(vlcViewObject);
else if( IID_IViewObject2 == riid )
*ppv = reinterpret_cast<LPVOID>(vlcViewObject);
else if( IID_IDataObject == riid )
*ppv = reinterpret_cast<LPVOID>(vlcDataObject);
else if( IID_ISupportErrorInfo == riid )
*ppv = reinterpret_cast<LPVOID>(vlcSupportErrorInfo);
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
((LPUNKNOWN)*ppv)->AddRef();
return NOERROR;
};
STDMETHODIMP_(ULONG) VLCPlugin::AddRef(void)
{
return InterlockedIncrement((LONG *)&_i_ref);
};
STDMETHODIMP_(ULONG) VLCPlugin::Release(void)
{
if( ! InterlockedDecrement((LONG *)&_i_ref) )
{
delete this;
return 0;
}
return _i_ref;
};
//////////////////////////////////////
HRESULT VLCPlugin::onInit(void)
{
if( NULL == _p_libvlc )
{
// initialize persistable properties
_b_autoplay = TRUE;
_b_autoloop = FALSE;
_bstr_baseurl = NULL;
_bstr_mrl = NULL;
_b_visible = TRUE;
_b_mute = FALSE;
_i_volume = 50;
_i_time = 0;
_i_backcolor = 0;
// set default/preferred size (320x240) pixels in HIMETRIC
HDC hDC = CreateDevDC(NULL);
_extent.cx = 320;
_extent.cy = 240;
HimetricFromDP(hDC, (LPPOINT)&_extent, 1);
DeleteDC(hDC);
return S_OK;
}
return CO_E_ALREADYINITIALIZED;
};
HRESULT VLCPlugin::onLoad(void)
{
if( SysStringLen(_bstr_baseurl) == 0 )
{
/*
** try to retreive the base URL using the client site moniker, which for Internet Explorer
** is the URL of the page the plugin is embedded into.
*/
LPOLECLIENTSITE pClientSite;
if( SUCCEEDED(vlcOleObject->GetClientSite(&pClientSite)) && (NULL != pClientSite) )
{
IBindCtx *pBC = 0;
if( SUCCEEDED(CreateBindCtx(0, &pBC)) )
{
LPMONIKER pContMoniker = NULL;
if( SUCCEEDED(pClientSite->GetMoniker(OLEGETMONIKER_ONLYIFTHERE,
OLEWHICHMK_CONTAINER, &pContMoniker)) )
{
LPOLESTR base_url;
if( SUCCEEDED(pContMoniker->GetDisplayName(pBC, NULL, &base_url)) )
{
/*
** check that the moniker name is a URL
*/
if( UrlIsW(base_url, URLIS_URL) )
{
/* copy base URL */
_bstr_baseurl = SysAllocString(base_url);
}
CoTaskMemFree(base_url);
}
}
}
}
}
setDirty(FALSE);
return S_OK;
};
HRESULT VLCPlugin::getVLCObject(int* i_vlc)
{
libvlc_instance_t *p_libvlc;
HRESULT result = getVLC(&p_libvlc);
if( SUCCEEDED(result) )
{
*i_vlc = libvlc_get_vlc_id(p_libvlc);
}
else
{
*i_vlc = 0;
}
return result;
}
HRESULT VLCPlugin::getVLC(libvlc_instance_t** pp_libvlc)
{
extern HMODULE DllGetModule();
if( ! isRunning() )
{
/*
** default initialization options
*/
char *ppsz_argv[32] = { "vlc" };
int ppsz_argc = 1;
char p_progpath[MAX_PATH];
{
TCHAR w_progpath[MAX_PATH];
DWORD len = GetModuleFileName(DllGetModule(), w_progpath, MAX_PATH);
if( len > 0 )
{
len = WideCharToMultiByte(CP_UTF8, 0, w_progpath, len, p_progpath,
sizeof(p_progpath)-1, NULL, NULL);
if( len > 0 )
{
p_progpath[len] = '\0';
ppsz_argv[0] = p_progpath;
}
}
}
ppsz_argv[ppsz_argc++] = "-vv";
HKEY h_key;
char p_pluginpath[MAX_PATH];
if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, TEXT("Software\\VideoLAN\\VLC"),
0, KEY_READ, &h_key ) == ERROR_SUCCESS )
{
DWORD i_type, i_data = MAX_PATH;
TCHAR w_pluginpath[MAX_PATH];
if( RegQueryValueEx( h_key, TEXT("InstallDir"), 0, &i_type,
(LPBYTE)w_pluginpath, &i_data ) == ERROR_SUCCESS )
{
if( i_type == REG_SZ )
{
if( WideCharToMultiByte(CP_UTF8, 0, w_pluginpath, -1, p_pluginpath,
sizeof(p_pluginpath)-sizeof("\\plugins")+1, NULL, NULL) )
{
strcat( p_pluginpath, "\\plugins" );
ppsz_argv[ppsz_argc++] = "--plugin-path";
ppsz_argv[ppsz_argc++] = p_pluginpath;
}
}
}
RegCloseKey( h_key );
}
// make sure plugin isn't affected with VLC single instance mode
ppsz_argv[ppsz_argc++] = "--no-one-instance";
/* common settings */
ppsz_argv[ppsz_argc++] = "--no-stats";
ppsz_argv[ppsz_argc++] = "--no-media-library";
ppsz_argv[ppsz_argc++] = "--intf=dummy";
// loop mode is a configuration option only
if( _b_autoloop )
ppsz_argv[ppsz_argc++] = "--loop";
_p_libvlc = libvlc_new(ppsz_argc, ppsz_argv, NULL);
if( NULL == _p_libvlc )
{
*pp_libvlc = NULL;
return E_FAIL;
}
// initial volume setting
libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
if( _b_mute )
{
libvlc_audio_set_mute(_p_libvlc, TRUE, NULL);
}
// initial playlist item
if( SysStringLen(_bstr_mrl) > 0 )
{
char *psz_mrl = NULL;
if( SysStringLen(_bstr_baseurl) > 0 )
{
/*
** if the MRL a relative URL, we should end up with an absolute URL
*/
LPWSTR abs_url = CombineURL(_bstr_baseurl, _bstr_mrl);
if( NULL != abs_url )
{
psz_mrl = CStrFromWSTR(CP_UTF8, abs_url, wcslen(abs_url));
CoTaskMemFree(abs_url);
}
else
{
psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
}
}
else
{
/*
** baseURL is empty, assume MRL is absolute
*/
psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
}
if( NULL != psz_mrl )
{
const char *options[1];
int i_options = 0;
char timeBuffer[32];
if( _i_time )
{
snprintf(timeBuffer, sizeof(timeBuffer), ":start-time=%d", _i_time);
options[i_options++] = timeBuffer;
}
// add default target to playlist
libvlc_playlist_add_extended(_p_libvlc, psz_mrl, NULL, i_options, options, NULL);
CoTaskMemFree(psz_mrl);
}
}
}
*pp_libvlc = _p_libvlc;
return S_OK;
};
void VLCPlugin::setErrorInfo(REFIID riid, const char *description)
{
vlcSupportErrorInfo->setErrorInfo( getClassID() == CLSID_VLCPlugin2 ?
OLESTR("VideoLAN.VLCPlugin.2") : OLESTR("VideoLAN.VLCPlugin.1"),
riid, description );
};
HRESULT VLCPlugin::onAmbientChanged(LPUNKNOWN pContainer, DISPID dispID)
{
VARIANT v;
switch( dispID )
{
case DISPID_AMBIENT_BACKCOLOR:
VariantInit(&v);
V_VT(&v) = VT_I4;
if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
{
setBackColor(V_I4(&v));
}
break;
case DISPID_AMBIENT_DISPLAYNAME:
break;
case DISPID_AMBIENT_FONT:
break;
case DISPID_AMBIENT_FORECOLOR:
break;
case DISPID_AMBIENT_LOCALEID:
break;
case DISPID_AMBIENT_MESSAGEREFLECT:
break;
case DISPID_AMBIENT_SCALEUNITS:
break;
case DISPID_AMBIENT_TEXTALIGN:
break;
case DISPID_AMBIENT_USERMODE:
VariantInit(&v);
V_VT(&v) = VT_BOOL;
if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
{
setUserMode(V_BOOL(&v) != VARIANT_FALSE);
}
break;
case DISPID_AMBIENT_UIDEAD:
break;
case DISPID_AMBIENT_SHOWGRABHANDLES:
break;
case DISPID_AMBIENT_SHOWHATCHING:
break;
case DISPID_AMBIENT_DISPLAYASDEFAULT:
break;
case DISPID_AMBIENT_SUPPORTSMNEMONICS:
break;
case DISPID_AMBIENT_AUTOCLIP:
break;
case DISPID_AMBIENT_APPEARANCE:
break;
case DISPID_AMBIENT_CODEPAGE:
VariantInit(&v);
V_VT(&v) = VT_I4;
if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
{
setCodePage(V_I4(&v));
}
break;
case DISPID_AMBIENT_PALETTE:
break;
case DISPID_AMBIENT_CHARSET:
break;
case DISPID_AMBIENT_RIGHTTOLEFT:
break;
case DISPID_AMBIENT_TOPTOBOTTOM:
break;
case DISPID_UNKNOWN:
/*
** multiple property change, look up the ones we are interested in
*/
VariantInit(&v);
V_VT(&v) = VT_BOOL;
if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_USERMODE, v)) )
{
setUserMode(V_BOOL(&v) != VARIANT_FALSE);
}
VariantInit(&v);
V_VT(&v) = VT_I4;
if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_CODEPAGE, v)) )
{
setCodePage(V_I4(&v));
}
break;
}
return S_OK;
};
HRESULT VLCPlugin::onClose(DWORD dwSaveOption)
{
if( isInPlaceActive() )
{
onInPlaceDeactivate();
}
if( isRunning() )
{
libvlc_instance_t* p_libvlc = _p_libvlc;
IVLCLog *p_log;
if( SUCCEEDED(vlcControl2->get_log(&p_log)) )
{
// make sure the log is disabled
p_log->put_verbosity(-1);
p_log->Release();
}
_p_libvlc = NULL;
vlcDataObject->onClose();
libvlc_destroy(p_libvlc, NULL );
}
return S_OK;
};
BOOL VLCPlugin::isInPlaceActive(void)
{
return (NULL != _inplacewnd);
};
HRESULT VLCPlugin::onActivateInPlace(LPMSG lpMesg, HWND hwndParent, LPCRECT lprcPosRect, LPCRECT lprcClipRect)
{
RECT clipRect = *lprcClipRect;
/*
** record keeping of control geometry within container
*/
_posRect = *lprcPosRect;
/*
** Create a window for in place activated control.
** the window geometry matches the control viewport
** within container so that embedded video is always
** properly displayed.
*/
_inplacewnd = CreateWindow(_p_class->getInPlaceWndClassName(),
TEXT("VLC Plugin In-Place Window"),
WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
lprcPosRect->left,
lprcPosRect->top,
lprcPosRect->right-lprcPosRect->left,
lprcPosRect->bottom-lprcPosRect->top,
hwndParent,
0,
_p_class->getHInstance(),
NULL
);
if( NULL == _inplacewnd )
return E_FAIL;
SetWindowLongPtr(_inplacewnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
/* change cliprect coordinates system relative to window bounding rect */
OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);
HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
SetWindowRgn(_inplacewnd, clipRgn, TRUE);
if( _b_usermode )
{
/* will run vlc if not done already */
libvlc_instance_t* p_libvlc;
HRESULT result = getVLC(&p_libvlc);
if( FAILED(result) )
return result;
/* set internal video width and height */
libvlc_video_set_size(p_libvlc,
lprcPosRect->right-lprcPosRect->left,
lprcPosRect->bottom-lprcPosRect->top,
NULL );
/* set internal video parent window */
libvlc_video_set_parent(p_libvlc,
reinterpret_cast<libvlc_drawable_t>(_inplacewnd), NULL);
if( _b_autoplay & (libvlc_playlist_items_count(p_libvlc, NULL) > 0) )
{
libvlc_playlist_play(p_libvlc, 0, 0, NULL, NULL);
fireOnPlayEvent();
}
}
if( isVisible() )
ShowWindow(_inplacewnd, SW_SHOW);
return S_OK;
};
HRESULT VLCPlugin::onInPlaceDeactivate(void)
{
if( isRunning() )
{
libvlc_playlist_stop(_p_libvlc, NULL);
fireOnStopEvent();
}
DestroyWindow(_inplacewnd);
_inplacewnd = NULL;
return S_OK;
};
void VLCPlugin::setVisible(BOOL fVisible)
{
if( fVisible != _b_visible )
{
_b_visible = fVisible;
if( isInPlaceActive() )
{
ShowWindow(_inplacewnd, fVisible ? SW_SHOW : SW_HIDE);
if( fVisible )
InvalidateRect(_inplacewnd, NULL, TRUE);
}
setDirty(TRUE);
firePropChangedEvent(DISPID_Visible);
}
};
void VLCPlugin::setVolume(int volume)
{
if( volume < 0 )
volume = 0;
else if( volume > 200 )
volume = 200;
if( volume != _i_volume )
{
_i_volume = volume;
if( isRunning() )
{
libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
}
setDirty(TRUE);
}
};
void VLCPlugin::setBackColor(OLE_COLOR backcolor)
{
if( _i_backcolor != backcolor )
{
_i_backcolor = backcolor;
if( isInPlaceActive() )
{
}
setDirty(TRUE);
}
};
void VLCPlugin::setTime(int seconds)
{
if( seconds < 0 )
seconds = 0;
if( seconds != _i_time )
{
setStartTime(_i_time);
if( isRunning() )
{
libvlc_media_instance_t *p_md = libvlc_playlist_get_media_instance(_p_libvlc, NULL);
if( NULL != p_md )
{
libvlc_media_instance_set_time(p_md, _i_time, NULL);
libvlc_media_instance_release(p_md);
}
}
}
};
void VLCPlugin::setFocus(BOOL fFocus)
{
if( fFocus )
SetActiveWindow(_inplacewnd);
};
BOOL VLCPlugin::hasFocus(void)
{
return GetActiveWindow() == _inplacewnd;
};
void VLCPlugin::onDraw(DVTARGETDEVICE * ptd, HDC hicTargetDev,
HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds)
{
if( isVisible() )
{
long width = lprcBounds->right-lprcBounds->left;
long height = lprcBounds->bottom-lprcBounds->top;
RECT bounds = { lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom };
if( isUserMode() )
{
/* VLC is in user mode, just draw background color */
COLORREF colorref = RGB(0, 0, 0);
OleTranslateColor(_i_backcolor, (HPALETTE)GetStockObject(DEFAULT_PALETTE), &colorref);
if( colorref != RGB(0, 0, 0) )
{
/* custom background */
HBRUSH colorbrush = CreateSolidBrush(colorref);
FillRect(hdcDraw, &bounds, colorbrush);
DeleteObject((HANDLE)colorbrush);
}
else
{
/* black background */
FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(BLACK_BRUSH));
}
}
else
{
/* VLC is in design mode, draw the VLC logo */
FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(WHITE_BRUSH));
LPPICTURE pict = getPicture();
if( NULL != pict )
{
OLE_XSIZE_HIMETRIC picWidth;
OLE_YSIZE_HIMETRIC picHeight;
pict->get_Width(&picWidth);
pict->get_Height(&picHeight);
SIZEL picSize = { picWidth, picHeight };
if( NULL != hicTargetDev )
{
DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
}
else if( NULL != (hicTargetDev = CreateDevDC(ptd)) )
{
DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
DeleteDC(hicTargetDev);
}
if( picSize.cx > width-4 )
picSize.cx = width-4;
if( picSize.cy > height-4 )
picSize.cy = height-4;
LONG dstX = lprcBounds->left+(width-picSize.cx)/2;
LONG dstY = lprcBounds->top+(height-picSize.cy)/2;
if( NULL != lprcWBounds )
{
RECT wBounds = { lprcWBounds->left, lprcWBounds->top, lprcWBounds->right, lprcWBounds->bottom };
pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
0L, picHeight, picWidth, -picHeight, &wBounds);
}
else
pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
0L, picHeight, picWidth, -picHeight, NULL);
pict->Release();
}
SelectObject(hdcDraw, GetStockObject(BLACK_BRUSH));
MoveToEx(hdcDraw, bounds.left, bounds.top, NULL);
LineTo(hdcDraw, bounds.left+width-1, bounds.top);
LineTo(hdcDraw, bounds.left+width-1, bounds.top+height-1);
LineTo(hdcDraw, bounds.left, bounds.top+height-1);
LineTo(hdcDraw, bounds.left, bounds.top);
}
}
};
void VLCPlugin::onPaint(HDC hdc, const RECT &bounds, const RECT &clipRect)
{
if( isVisible() )
{
/* if VLC is in design mode, draw control logo */
HDC hdcDraw = CreateCompatibleDC(hdc);
if( NULL != hdcDraw )
{
SIZEL size = getExtent();
DPFromHimetric(hdc, (LPPOINT)&size, 1);
RECTL posRect = { 0, 0, size.cx, size.cy };
int width = bounds.right-bounds.left;
int height = bounds.bottom-bounds.top;
HBITMAP hBitmap = CreateCompatibleBitmap(hdc, width, height);
if( NULL != hBitmap )
{
HBITMAP oldBmp = (HBITMAP)SelectObject(hdcDraw, hBitmap);
if( (size.cx != width) || (size.cy != height) )
{
// needs to scale canvas
SetMapMode(hdcDraw, MM_ANISOTROPIC);
SetWindowExtEx(hdcDraw, size.cx, size.cy, NULL);
SetViewportExtEx(hdcDraw, width, height, NULL);
}
onDraw(NULL, hdc, hdcDraw, &posRect, NULL);
SetMapMode(hdcDraw, MM_TEXT);
BitBlt(hdc, bounds.left, bounds.top,
width, height,
hdcDraw, 0, 0,
SRCCOPY);
SelectObject(hdcDraw, oldBmp);
DeleteObject(hBitmap);
}
DeleteDC(hdcDraw);
}
}
};
void VLCPlugin::onPositionChange(LPCRECT lprcPosRect, LPCRECT lprcClipRect)
{
RECT clipRect = *lprcClipRect;
//RedrawWindow(GetParent(_inplacewnd), &_posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
/*
** record keeping of control geometry within container
*/
_posRect = *lprcPosRect;
/*
** change in-place window geometry to match clipping region
*/
SetWindowPos(_inplacewnd, NULL,
lprcPosRect->left,
lprcPosRect->top,
lprcPosRect->right-lprcPosRect->left,
lprcPosRect->bottom-lprcPosRect->top,
SWP_NOACTIVATE|
SWP_NOCOPYBITS|
SWP_NOZORDER|
SWP_NOOWNERZORDER );
/* change cliprect coordinates system relative to window bounding rect */
OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);
HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
SetWindowRgn(_inplacewnd, clipRgn, FALSE);
//RedrawWindow(_videownd, &posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
if( isRunning() )
{
libvlc_video_set_size(_p_libvlc,
lprcPosRect->right-lprcPosRect->left,
lprcPosRect->bottom-lprcPosRect->top,
NULL );
}
};
void VLCPlugin::freezeEvents(BOOL freeze)
{
vlcConnectionPointContainer->freezeEvents(freeze);
};
void VLCPlugin::firePropChangedEvent(DISPID dispid)
{
vlcConnectionPointContainer->firePropChangedEvent(dispid);
};
void VLCPlugin::fireOnPlayEvent(void)
{
DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
vlcConnectionPointContainer->fireEvent(DISPID_PlayEvent, &dispparamsNoArgs);
};
void VLCPlugin::fireOnPauseEvent(void)
{
DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
vlcConnectionPointContainer->fireEvent(DISPID_PauseEvent, &dispparamsNoArgs);
};
void VLCPlugin::fireOnStopEvent(void)
{
DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
vlcConnectionPointContainer->fireEvent(DISPID_StopEvent, &dispparamsNoArgs);
};
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