Source code of Windows XP (NT5)
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/*****************************************************************************\
FILE: appStyle.cpp
DESCRIPTION:
This is the Autmation Object to theme scheme object.
BryanSt 4/3/2000 (Bryan Starbuck)
Copyright (C) Microsoft Corp 2000-2000. All rights reserved.
\*****************************************************************************/
#include "priv.h"
#include <cowsite.h>
#include <atlbase.h>
#include "util.h"
#include "theme.h"
#include "appsize.h"
#include "appstyle.h"
//===========================
// *** Class Internals & Helpers ***
//===========================
HRESULT CAppearanceStyle::_getSizeByIndex(IN long nIndex, OUT IThemeSize ** ppThemeSize)
{
HRESULT hr = E_INVALIDARG;
if (ppThemeSize)
{
HKEY hKeyStyle;
*ppThemeSize = NULL;
hr = HrRegOpenKeyEx(m_hKeyStyle, NULL, 0, (KEY_WRITE | KEY_READ), &hKeyStyle); // Clone the key.
if (SUCCEEDED(hr))
{
HKEY kKeySizes;
hr = HrRegCreateKeyEx(m_hKeyStyle, SZ_REGKEY_SIZES, 0, NULL, REG_OPTION_NON_VOLATILE, (KEY_WRITE | KEY_READ), NULL, &kKeySizes, NULL);
if (SUCCEEDED(hr))
{
HKEY kKeyTheSize;
TCHAR szKeyName[MAXIMUM_SUB_KEY_LENGTH];
wnsprintf(szKeyName, ARRAYSIZE(szKeyName), TEXT("%d"), nIndex);
hr = HrRegOpenKeyEx(kKeySizes, szKeyName, 0, (KEY_WRITE | KEY_READ), &kKeyTheSize);
if (SUCCEEDED(hr))
{
hr = CAppearanceSize_CreateInstance(hKeyStyle, kKeyTheSize, ppThemeSize); // This function takes ownership of hKeyStyle and kKeyTheSize
}
RegCloseKey(kKeySizes);
}
if (FAILED(hr))
{
RegCloseKey(hKeyStyle);
}
}
}
return hr;
}
#define SZ_APPEARANCE_SCHEME_NAME L"NoVisualStyle"
//===========================
// *** ITheme Interface ***
//===========================
HRESULT CAppearanceStyle::get_DisplayName(OUT BSTR * pbstrDisplayName)
{
HRESULT hr = E_INVALIDARG;
if (pbstrDisplayName)
{
CComBSTR bstrDisplayName;
*pbstrDisplayName = NULL;
hr = HrBStrRegQueryValue(m_hKeyStyle, SZ_REGVALUE_DISPLAYNAME, &bstrDisplayName);
if (SUCCEEDED(hr))
{
WCHAR szDisplayName[MAX_PATH];
if (SUCCEEDED(SHLoadIndirectString(bstrDisplayName, szDisplayName, ARRAYSIZE(szDisplayName), NULL)))
{
hr = HrSysAllocStringW(szDisplayName, pbstrDisplayName);
}
else
{
hr = HrSysAllocStringW(bstrDisplayName, pbstrDisplayName);
}
}
}
return hr;
}
HRESULT CAppearanceStyle::put_DisplayName(IN BSTR bstrDisplayName)
{
return HrRegSetValueString(m_hKeyStyle, NULL, SZ_REGVALUE_DISPLAYNAME, bstrDisplayName);
}
HRESULT CAppearanceStyle::get_Name(OUT BSTR * pbstrName)
{
// This will be connonical. And it will be language independent if it is one that
// we could upgrade to MUI compat strings.
return HrBStrRegQueryValue(m_hKeyStyle, SZ_REGVALUE_DISPLAYNAME, pbstrName);
}
HRESULT CAppearanceStyle::put_Name(IN BSTR bstrName)
{
return E_NOTIMPL;
}
HRESULT CAppearanceStyle::get_length(OUT long * pnLength)
{
HRESULT hr = E_INVALIDARG;
if (pnLength)
{
HKEY hKeyStyle;
*pnLength = 0;
hr = HrRegOpenKeyEx(m_hKeyStyle, SZ_REGKEY_SIZES, 0, KEY_READ, &hKeyStyle);
if (SUCCEEDED(hr))
{
DWORD dwValues = 0;
hr = HrRegQueryInfoKey(hKeyStyle, NULL, NULL, NULL, &dwValues, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
*pnLength = (long) dwValues;
RegCloseKey(hKeyStyle);
}
}
return hr;
}
HRESULT CAppearanceStyle::get_item(IN VARIANT varIndex, OUT IThemeSize ** ppThemeSize)
{
HRESULT hr = E_INVALIDARG;
if (ppThemeSize)
{
long nCount = 0;
get_length(&nCount);
*ppThemeSize = NULL;
// This is sortof gross, but if we are passed a pointer to another variant, simply
// update our copy here...
if (varIndex.vt == (VT_BYREF | VT_VARIANT) && varIndex.pvarVal)
varIndex = *(varIndex.pvarVal);
switch (varIndex.vt)
{
case VT_I2:
varIndex.lVal = (long)varIndex.iVal;
// And fall through...
case VT_I4:
if ((varIndex.lVal >= 0) && (varIndex.lVal < nCount))
{
hr = _getSizeByIndex(varIndex.lVal, ppThemeSize);
}
break;
case VT_BSTR:
if (varIndex.bstrVal)
{
for (int nIndex = 0; FAILED(hr) && (nIndex < nCount); nIndex++)
{
IThemeSize * pThemeSize;
if (SUCCEEDED(_getSizeByIndex(nIndex, &pThemeSize)))
{
CComBSTR bstrDisplayName;
if (SUCCEEDED(pThemeSize->get_DisplayName(&bstrDisplayName)))
{
if (!StrCmpIW(bstrDisplayName, varIndex.bstrVal))
{
// They match, so this is the one.
*ppThemeSize = pThemeSize;
pThemeSize = NULL;
hr = S_OK;
}
}
if (FAILED(hr))
{
if (bstrDisplayName)
{
bstrDisplayName.Empty();
}
if (SUCCEEDED(pThemeSize->get_Name(&bstrDisplayName)))
{
if (!StrCmpIW(bstrDisplayName, varIndex.bstrVal))
{
// They match, so this is the one.
*ppThemeSize = pThemeSize;
pThemeSize = NULL;
hr = S_OK;
}
}
}
ATOMICRELEASE(pThemeSize);
}
}
}
break;
default:
hr = E_NOTIMPL;
}
}
return hr;
}
HRESULT CAppearanceStyle::get_SelectedSize(OUT IThemeSize ** ppThemeSize)
{
HRESULT hr = E_INVALIDARG;
if (ppThemeSize)
{
HKEY hKeyStyle;
*ppThemeSize = NULL;
AssertMsg((NULL != m_hKeyStyle), TEXT("If this isn't set, then someone didn't construct us correctly"));
hr = HrRegOpenKeyEx(m_hKeyStyle, NULL, 0, (KEY_WRITE | KEY_READ), &hKeyStyle); // Clone the key.
if (SUCCEEDED(hr))
{
TCHAR szSelectedSize[MAXIMUM_SUB_KEY_LENGTH];
DWORD cbSize = sizeof(szSelectedSize);
hr = HrSHGetValue(m_hKeyStyle, NULL, SZ_REGVALUE_SELECTEDSIZE, NULL, szSelectedSize, &cbSize);
if (FAILED(hr))
{
StrCpyN(szSelectedSize, TEXT("0"), ARRAYSIZE(szSelectedSize)); // Select the first one in the list when in doubt.
hr = S_OK;
}
if (SUCCEEDED(hr))
{
TCHAR szKeyName[MAXIMUM_SUB_KEY_LENGTH];
HKEY hKeyTheSize;
wnsprintf(szKeyName, ARRAYSIZE(szKeyName), TEXT("%s\\%s"), SZ_REGKEY_SIZES, szSelectedSize);
// Let's find the next empty slot
hr = HrRegOpenKeyEx(m_hKeyStyle, szKeyName, 0, (KEY_WRITE | KEY_READ), &hKeyTheSize);
if (SUCCEEDED(hr))
{
hr = CAppearanceSize_CreateInstance(hKeyStyle, hKeyTheSize, ppThemeSize); // This function takes ownership of hKeyStyle and kKeySizes
if (FAILED(hr))
{
RegCloseKey(hKeyTheSize);
}
}
}
if (FAILED(hr))
{
RegCloseKey(hKeyStyle);
}
}
}
return hr;
}
HRESULT CAppearanceStyle::put_SelectedSize(IN IThemeSize * pThemeSize)
{
HRESULT hr = E_INVALIDARG;
if (pThemeSize)
{
TCHAR szKeyName[MAXIMUM_SUB_KEY_LENGTH];
CComBSTR bstrDisplayNameSource;
szKeyName[0] = 0;
hr = pThemeSize->get_DisplayName(&bstrDisplayNameSource);
if (SUCCEEDED(hr))
{
for (int nIndex = 0; SUCCEEDED(hr); nIndex++)
{
IThemeSize * pThemeSizeInList;
hr = _getSizeByIndex(nIndex, &pThemeSizeInList);
if (SUCCEEDED(hr))
{
CComBSTR bstrDisplayName;
hr = pThemeSizeInList->get_DisplayName(&bstrDisplayName);
if (SUCCEEDED(hr))
{
ATOMICRELEASE(pThemeSizeInList);
if (!StrCmpIW(bstrDisplayName, bstrDisplayNameSource))
{
// They match, so this is the one.
wnsprintf(szKeyName, ARRAYSIZE(szKeyName), TEXT("%d"), nIndex);
break;
}
}
}
}
}
if (SUCCEEDED(hr) && szKeyName[0])
{
DWORD cbSize = ((lstrlen(szKeyName) + 1) * sizeof(szKeyName[0]));
hr = HrSHSetValue(m_hKeyStyle, NULL, SZ_REGVALUE_SELECTEDSIZE, REG_SZ, szKeyName, cbSize);
}
}
return hr;
}
HRESULT CAppearanceStyle::AddSize(OUT IThemeSize ** ppThemeSize)
{
HRESULT hr = E_INVALIDARG;
if (ppThemeSize)
{
HKEY kKeySizes;
*ppThemeSize = NULL;
hr = HrRegCreateKeyEx(m_hKeyStyle, SZ_REGKEY_SIZES, 0, NULL, REG_OPTION_NON_VOLATILE, (KEY_WRITE | KEY_READ), NULL, &kKeySizes, NULL);
if (SUCCEEDED(hr))
{
for (int nIndex = 0; nIndex < 10000; nIndex++)
{
HKEY hKeyTheSize;
TCHAR szKeyName[MAXIMUM_SUB_KEY_LENGTH];
wnsprintf(szKeyName, ARRAYSIZE(szKeyName), TEXT("%d"), nIndex);
// Let's find the next empty slot
hr = HrRegOpenKeyEx(kKeySizes, szKeyName, 0, (KEY_WRITE | KEY_READ), &hKeyTheSize);
if (SUCCEEDED(hr))
{
RegCloseKey(hKeyTheSize);
}
else
{
hr = HrRegCreateKeyEx(kKeySizes, szKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, (KEY_WRITE | KEY_READ), NULL, &hKeyTheSize, NULL);
if (SUCCEEDED(hr))
{
HKEY hKeyStyle;
hr = HrRegOpenKeyEx(m_hKeyStyle, NULL, 0, (KEY_WRITE | KEY_READ), &hKeyStyle); // Clone the key.
if (SUCCEEDED(hr))
{
hr = CAppearanceSize_CreateInstance(hKeyStyle, hKeyTheSize, ppThemeSize); // This function takes ownership of hKeyStyle and kKeySizes
if (FAILED(hr))
{
RegCloseKey(hKeyStyle);
}
}
if (FAILED(hr))
{
RegCloseKey(hKeyTheSize);
}
}
break;
}
}
RegCloseKey(kKeySizes);
}
}
return hr;
}
//===========================
// *** IUnknown Interface ***
//===========================
ULONG CAppearanceStyle::AddRef()
{
return InterlockedIncrement(&m_cRef);
}
ULONG CAppearanceStyle::Release()
{
if (InterlockedDecrement(&m_cRef))
return m_cRef;
delete this;
return 0;
}
//===========================
// *** Class Methods ***
//===========================
HRESULT CAppearanceStyle::QueryInterface(REFIID riid, void **ppvObj)
{
static const QITAB qit[] = {
QITABENT(CAppearanceStyle, IThemeStyle),
QITABENT(CAppearanceStyle, IDispatch),
{ 0 },
};
return QISearch(this, qit, riid, ppvObj);
}
CAppearanceStyle::CAppearanceStyle(IN HKEY hkeyStyle) : CImpIDispatch(LIBID_Theme, 1, 0, IID_IThemeStyle), m_cRef(1)
{
DllAddRef();
// This needs to be allocated in Zero Inited Memory.
// Assert that all Member Variables are inited to Zero.
m_hKeyStyle = hkeyStyle;
}
CAppearanceStyle::~CAppearanceStyle()
{
if (m_hKeyStyle)
{
RegCloseKey(m_hKeyStyle);
}
DllRelease();
}
HRESULT CAppearanceStyle_CreateInstance(IN HKEY hkeyStyle, OUT IThemeStyle ** ppThemeStyle)
{
HRESULT hr = E_INVALIDARG;
if (ppThemeStyle)
{
CAppearanceStyle * pObject = new CAppearanceStyle(hkeyStyle);
*ppThemeStyle = NULL;
if (pObject)
{
hr = pObject->QueryInterface(IID_PPV_ARG(IThemeStyle, ppThemeStyle));
pObject->Release();
}
else
{
hr = E_OUTOFMEMORY;
}
}
return hr;
}