X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=activex%2Futils.cpp;h=f5d4f9966661512eadbcf81c5d024ed2922ec9e4;hb=402b2ed2f093bdf8d22e691a6d5b893623decece;hp=eecba670064722ccb089bbe26b47052cf54b12d8;hpb=f533f3d8aa01c57102e16a829fe9146b35a32cef;p=vlc

diff --git a/activex/utils.cpp b/activex/utils.cpp
index eecba67006..f5d4f99666 100644
--- a/activex/utils.cpp
+++ b/activex/utils.cpp
@@ -1,101 +1,162 @@
-/*****************************************************************************
- * utils.cpp: ActiveX control for VLC
- *****************************************************************************
- * Copyright (C) 2005 VideoLAN
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
- *****************************************************************************/
-
-#include "utils.h"
-
-/*
-** conversion facilities
-*/
-
-using namespace std;
-
-char *CStrFromBSTR(int codePage, BSTR bstr)
-{
-    UINT len = SysStringLen(bstr);
-    if( len > 0 )
-    {
-        size_t mblen = WideCharToMultiByte(codePage,
-                0, bstr, len, NULL, 0, NULL, NULL);
-        if( mblen > 0 )
-        {
-            char *buffer = (char *)malloc(mblen+1);
-            ZeroMemory(buffer, mblen+1);
-            if( WideCharToMultiByte(codePage, 0, bstr, len, buffer, mblen, NULL, NULL) )
-                return buffer;
-        }
-    }
-    return NULL;
-};
-
-BSTR BSTRFromCStr(int codePage, const char *s)
-{
-    int wideLen = MultiByteToWideChar(codePage, 0, s, -1, NULL, 0);
-    if( wideLen )
-    {
-        WCHAR* wideStr = (WCHAR*)malloc(wideLen*sizeof(WCHAR));
-        if( NULL != wideStr )
-        {
-            BSTR bstr;
-
-            ZeroMemory(wideStr, wideLen*sizeof(WCHAR));
-            MultiByteToWideChar(codePage, 0, s, -1, wideStr, wideLen);
-            bstr = SysAllocString(wideStr);
-            free(wideStr);
-
-            return bstr;
-        }
-    }
-    return NULL;
-};
-
-/*
-**  properties
-*/
-
-HRESULT GetObjectProperty(LPUNKNOWN object, DISPID dispID, VARIANT& v)
-{
-    IDispatch *pDisp;
-    HRESULT hr = object->QueryInterface(IID_IDispatch, (LPVOID *)&pDisp);
-    if( SUCCEEDED(hr) )
-    {
-        DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
-        VARIANT vres;
-        hr = pDisp->Invoke(dispID, IID_NULL, LOCALE_USER_DEFAULT,
-                DISPATCH_PROPERTYGET, &dispparamsNoArgs, &vres, NULL, NULL);
-        if( SUCCEEDED(hr) )
-        {
-            if( V_VT(&v) != V_VT(&vres) )
-            {
-                hr = VariantChangeType(&v, &vres, 0, V_VT(&v));
-                VariantClear(&vres);
-            }
-            else
-            {
-                v = vres;
-            }
-        }
-        pDisp->Release();
-    }
-    return hr;
-};
-
-
+/*****************************************************************************
+ * utils.cpp: ActiveX control for VLC
+ *****************************************************************************
+ * Copyright (C) 2005 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 "utils.h"
+
+/*
+** conversion facilities
+*/
+
+using namespace std;
+
+char *CStrFromBSTR(UINT codePage, BSTR bstr)
+{
+    UINT len = SysStringLen(bstr);
+    if( len > 0 )
+    {
+        size_t mblen = WideCharToMultiByte(codePage,
+                0, bstr, len, NULL, 0, NULL, NULL);
+        if( mblen > 0 )
+        {
+            char *buffer = (char *)CoTaskMemAlloc(mblen+1);
+            ZeroMemory(buffer, mblen+1);
+            if( WideCharToMultiByte(codePage, 0, bstr, len, buffer, mblen, NULL, NULL) )
+            {
+                buffer[mblen] = '\0';
+                return buffer;
+            }
+        }
+    }
+    return NULL;
+};
+
+BSTR BSTRFromCStr(UINT codePage, LPCSTR s)
+{
+    int wideLen = MultiByteToWideChar(codePage, 0, s, -1, NULL, 0);
+    if( wideLen > 0 )
+    {
+        WCHAR* wideStr = (WCHAR*)CoTaskMemAlloc(wideLen*sizeof(WCHAR));
+        if( NULL != wideStr )
+        {
+            BSTR bstr;
+
+            ZeroMemory(wideStr, wideLen*sizeof(WCHAR));
+            MultiByteToWideChar(codePage, 0, s, -1, wideStr, wideLen);
+            bstr = SysAllocStringLen(wideStr, wideLen);
+            free(wideStr);
+
+            return bstr;
+        }
+    }
+    return NULL;
+};
+
+/*
+**  properties
+*/
+
+HRESULT GetObjectProperty(LPUNKNOWN object, DISPID dispID, VARIANT& v)
+{
+    IDispatch *pDisp;
+    HRESULT hr = object->QueryInterface(IID_IDispatch, (LPVOID *)&pDisp);
+    if( SUCCEEDED(hr) )
+    {
+        DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
+        VARIANT vres;
+        VariantInit(&vres);
+        hr = pDisp->Invoke(dispID, IID_NULL, LOCALE_USER_DEFAULT,
+                DISPATCH_PROPERTYGET, &dispparamsNoArgs, &vres, NULL, NULL);
+        if( SUCCEEDED(hr) )
+        {
+            if( V_VT(&v) != V_VT(&vres) )
+            {
+                hr = VariantChangeType(&v, &vres, 0, V_VT(&v));
+                VariantClear(&vres);
+            }
+            else
+            {
+                v = vres;
+            }
+        }
+        pDisp->Release();
+    }
+    return hr;
+};
+
+HDC CreateDevDC(DVTARGETDEVICE *ptd)
+{
+	HDC hdc=NULL;
+	LPDEVNAMES lpDevNames;
+	LPDEVMODE lpDevMode;
+	LPTSTR lpszDriverName;
+	LPTSTR lpszDeviceName;
+	LPTSTR lpszPortName;
+
+	if (ptd == NULL) {
+		hdc = CreateDC(TEXT("DISPLAY"), NULL, NULL, NULL);
+		goto errReturn;
+	}
+
+	lpDevNames = (LPDEVNAMES) ptd; // offset for size field
+
+	if (ptd->tdExtDevmodeOffset == 0) {
+		lpDevMode = NULL;
+	}else{
+		lpDevMode  = (LPDEVMODE) ((LPTSTR)ptd + ptd->tdExtDevmodeOffset);
+	}
+
+	lpszDriverName = (LPTSTR) lpDevNames + ptd->tdDriverNameOffset;
+	lpszDeviceName = (LPTSTR) lpDevNames + ptd->tdDeviceNameOffset;
+	lpszPortName   = (LPTSTR) lpDevNames + ptd->tdPortNameOffset;
+
+	hdc = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, lpDevMode);
+
+errReturn:
+	return hdc;
+};
+
+#define HIMETRIC_PER_INCH 2540
+
+void DPFromHimetric(HDC hdc, LPPOINT pt, int count)
+{
+    LONG lpX = GetDeviceCaps(hdc, LOGPIXELSX);
+    LONG lpY = GetDeviceCaps(hdc, LOGPIXELSY);
+    while( count-- )
+    {
+        pt->x = pt->x*lpX/HIMETRIC_PER_INCH;
+        pt->y = pt->y*lpY/HIMETRIC_PER_INCH;
+        ++pt;
+    }
+};
+
+void HimetricFromDP(HDC hdc, LPPOINT pt, int count)
+{
+    LONG lpX = GetDeviceCaps(hdc, LOGPIXELSX);
+    LONG lpY = GetDeviceCaps(hdc, LOGPIXELSY);
+    while( count-- )
+    {
+        pt->x = pt->x*HIMETRIC_PER_INCH/lpX;
+        pt->y = pt->y*HIMETRIC_PER_INCH/lpY;
+        ++pt;
+    }
+};
+