Source code of Windows XP (NT5)
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//---------------------------------------------------------------------------
//
// File: plustab.cpp
//
// Main Implementation of the Effects page
//
//---------------------------------------------------------------------------
#include "priv.h"
#pragma hdrstop
#include "shlwapip.h"
#include "shlguidp.h"
#include "EffectsAdvPg.h"
#include "store.h"
#include "regutil.h"
// OLE-Registry magic number
GUID CLSID_EffectsPage = { 0x41e300e0, 0x78b6, 0x11ce,{0x84, 0x9b, 0x44, 0x45, 0x53, 0x54, 0x00, 0x00}};
#define SPI_GETKEYBOARDINDICATORS SPI_GETMENUUNDERLINES//0x100A
#define SPI_SETKEYBOARDINDICATORS SPI_SETMENUUNDERLINES//0x100B
#define SPI_GETFONTCLEARTYPE 116
#define SPI_SETFONTCLEARTYPE 117
// Handle to the DLL
extern HINSTANCE g_hInst;
// vars needed for new shell api
#define SZ_SHELL32 TEXT("shell32.dll")
#define SZ_SHUPDATERECYCLEBINICON "SHUpdateRecycleBinIcon" // Parameter for GetProcAddr()... DO NOT TEXT("") IT!
typedef void (* PFNSHUPDATERECYCLEBINICON)( void );
// Function prototype
BOOL CALLBACK PlusPackDlgProc( HWND hDlg, UINT uMessage, WPARAM wParam, LPARAM lParam );
// Icon Stuff
int GetIconState (void);
BOOL ChangeIconSizes(int iOldState, int iNewState);
// animation stuff
WPARAM GetAnimations(DWORD *pdwEffect);
void SetAnimations(WPARAM wVal, DWORD dwEffect, DWORD dwBroadCast);
BOOL DisplayFontSmoothingDetails(DWORD *pdwSetting)
{
return FALSE;
}
int GetBitsPerPixel(void)
{
int iBitsPerPixel = 8;
HDC hDC = GetDC(NULL);
if (hDC)
{
iBitsPerPixel = GetDeviceCaps(hDC, BITSPIXEL);
ReleaseDC(NULL, hDC);
}
return iBitsPerPixel;
}
int GetIconState(void)
{
BOOL bRet;
int iSize;
bRet = GetRegValueInt(HKEY_CURRENT_USER, SZ_REGKEY_USERMETRICS, SZ_REGVALUE_ICONSIZE, &iSize);
if (bRet == FALSE)
return ICON_DEFAULT;
if (iSize == ICON_DEFAULT_NORMAL)
return ICON_DEFAULT;
else if (iSize == ICON_DEFAULT_LARGE)
return ICON_LARGE;
return ICON_INDETERMINATE;
}
BOOL ChangeIconSizes(int iOldState, int iNewState)
{
BOOL bRet;
int iOldSize, iNewSize;
int iHorz;
int iVert;
// Don't bother if nothing changed
if (iOldState == iNewState)
return FALSE;
// Get New Size
switch (iNewState)
{
case ICON_DEFAULT:
iNewSize = ICON_DEFAULT_NORMAL;
break;
case ICON_LARGE:
iNewSize = ICON_DEFAULT_LARGE;
break;
case ICON_INDETERMINATE:
// Don't bother to change anything
return FALSE;
default:
return FALSE;
}
// Get Original Size
bRet = GetRegValueInt(HKEY_CURRENT_USER, SZ_REGKEY_USERMETRICS, SZ_REGVALUE_ICONSIZE, &iOldSize);
if (!bRet)
{
// Try geting system default instead
iOldSize = ClassicGetSystemMetrics(SM_CXICON);
}
// Don't need to change size if nothing has really changed
if (iNewSize == iOldSize)
return FALSE;
// Get new horizontal spacing
iHorz = ClassicGetSystemMetrics(SM_CXICONSPACING);
iHorz -= iOldSize;
if (iHorz < 0)
{
iHorz = 0;
}
iHorz += iNewSize;
// Get new vertical spacing
iVert = ClassicGetSystemMetrics(SM_CYICONSPACING);
iVert -= iOldSize;
if (iVert < 0)
{
iVert = 0;
}
iVert += iNewSize;
// Set New sizes and spacing
bRet = SetRegValueInt(HKEY_CURRENT_USER, SZ_REGKEY_USERMETRICS, SZ_REGVALUE_ICONSIZE, iNewSize);
if (!bRet)
return FALSE;
// We don't need to call the Async version because this function is called on a background thread.
ClassicSystemParametersInfo(SPI_ICONHORIZONTALSPACING, iHorz, NULL, (SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE));
ClassicSystemParametersInfo(SPI_ICONVERTICALSPACING, iVert, NULL, (SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE));
// We need to do this in order to force DefView to update.
// BUG:194437
ICONMETRICS iconMetrics;
iconMetrics.cbSize = sizeof(iconMetrics);
ClassicSystemParametersInfo(SPI_GETICONMETRICS, sizeof(iconMetrics), &iconMetrics, 0);
ClassicSystemParametersInfo(SPI_SETICONMETRICS, sizeof(iconMetrics), &iconMetrics, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE);
// We did change the sizes
return TRUE;
}
//
// GetAnimations
//
// Get current state of animations (windows / menus / etc.).
//
WPARAM GetAnimations(DWORD *pdwEffect)
{
BOOL fMenu = FALSE, fWindow = FALSE, fCombo = FALSE, fSmooth = FALSE, fList = FALSE, fFade = FALSE;
ANIMATIONINFO ai;
ai.cbSize = sizeof(ai);
if (ClassicSystemParametersInfo(SPI_GETANIMATION, sizeof(ai), (PVOID)&ai, 0 ))
{
fWindow = (ai.iMinAnimate) ? TRUE : FALSE;
}
ClassicSystemParametersInfo(SPI_GETCOMBOBOXANIMATION, 0, (PVOID)&fCombo, 0 );
ClassicSystemParametersInfo(SPI_GETLISTBOXSMOOTHSCROLLING, 0, (PVOID)&fList, 0 );
ClassicSystemParametersInfo(SPI_GETMENUANIMATION, 0, (PVOID)&fMenu, 0 );
fSmooth = GetRegValueDword(HKEY_CURRENT_USER, SZ_REGKEY_CPDESKTOP, SZ_REGVALUE_SMOOTHSCROLL);
if (fSmooth == REG_BAD_DWORD)
{
fSmooth = 1;
}
ClassicSystemParametersInfo(SPI_GETMENUFADE, 0, (PVOID)&fFade, 0 );
*pdwEffect = (fFade ? MENU_EFFECT_FADE : MENU_EFFECT_SCROLL);
if (fMenu && fWindow && fCombo && fSmooth && fList)
return BST_CHECKED;
if ((!fMenu) && (!fWindow) && (!fCombo) && (!fSmooth) && (!fList))
return BST_UNCHECKED;
return BST_INDETERMINATE;
}
//
// SetAnimations
//
// Set animations according (windows / menus / etc.) according to flag.
//
void SetAnimations(WPARAM wVal, DWORD dwEffect, DWORD dwBroadcast)
{
if (!IsTSPerfFlagEnabled(TSPerFlag_NoAnimation))
{
ANIMATIONINFO ai;
// Note, if the checkbox is indeterminate, we treat it like it was checked.
// We should never get this far if the user didn't change something so this should be okay.
BOOL bVal = (wVal == BST_UNCHECKED) ? 0 : 1;
BOOL bEfx = (dwEffect == MENU_EFFECT_FADE) ? 1 : 0;
ai.cbSize = sizeof(ai);
ai.iMinAnimate = bVal;
ClassicSystemParametersInfo(SPI_SETANIMATION, sizeof(ai), (PVOID)&ai, dwBroadcast);
ClassicSystemParametersInfo(SPI_SETCOMBOBOXANIMATION, 0, IntToPtr(bVal), dwBroadcast);
ClassicSystemParametersInfo(SPI_SETLISTBOXSMOOTHSCROLLING, 0, IntToPtr(bVal), dwBroadcast);
ClassicSystemParametersInfo(SPI_SETMENUANIMATION, 0, IntToPtr(bVal), dwBroadcast);
ClassicSystemParametersInfo(SPI_SETTOOLTIPANIMATION, 0, IntToPtr(bVal), dwBroadcast);
SetRegValueDword(HKEY_CURRENT_USER, SZ_REGKEY_CPDESKTOP, SZ_REGVALUE_SMOOTHSCROLL, bVal);
ClassicSystemParametersInfo(SPI_SETMENUFADE, 0, IntToPtr(bEfx), dwBroadcast);
ClassicSystemParametersInfo(SPI_SETTOOLTIPFADE, 0, IntToPtr(bEfx), dwBroadcast);
ClassicSystemParametersInfo(SPI_SETSELECTIONFADE, 0, bVal ? IntToPtr(bEfx) : 0, dwBroadcast);
}
}
CEffectState::CEffectState() : m_cRef(1)
{
}
CEffectState::~CEffectState()
{
}
HRESULT CEffectState::Load(void)
{
HRESULT hr = S_OK;
// Get the values for the settings from the registry and set the checkboxes
// Large Icons
_nLargeIcon = GetIconState();
// Full Color Icons
if(FALSE == GetRegValueInt(HKEY_CURRENT_USER, SZ_REGKEY_USERMETRICS, SZ_REGVALUE_ICONCOLORDEPTH, &_nHighIconColor)) // Key not in registry yet
{
_nHighIconColor = 4;
}
// Use animations
_wpMenuAnimation = GetAnimations(&_dwAnimationEffect);
// Smooth edges of screen fonts
_fFontSmoothing = FALSE;
ClassicSystemParametersInfo(SPI_GETFONTSMOOTHING, 0, (PVOID)&_fFontSmoothing, 0);
_dwFontSmoothingType = FONT_SMOOTHING_AA;
if (ClassicSystemParametersInfo(SPI_GETFONTSMOOTHINGTYPE, 0, (PVOID)&_dwFontSmoothingType, 0))
{
}
if (FONT_SMOOTHING_MONO == _dwFontSmoothingType)
{
_dwFontSmoothingType = FONT_SMOOTHING_AA;
}
// Show contents while dragging
_fDragWindow = FALSE;
ClassicSystemParametersInfo(SPI_GETDRAGFULLWINDOWS, 0, (PVOID)&_fDragWindow, 0);
_fKeyboardIndicators = FALSE;
ClassicSystemParametersInfo(SPI_GETKEYBOARDINDICATORS, 0, (PVOID)&_fKeyboardIndicators, 0);
_fMenuShadows = TRUE;
ClassicSystemParametersInfo(SPI_GETDROPSHADOW, 0, (PVOID)&_fMenuShadows, 0);
// Set the old values so we know when they changed.
_nOldLargeIcon = _nLargeIcon;
_nOldHighIconColor = _nHighIconColor;
_wpOldMenuAnimation = _wpMenuAnimation;
_fOldFontSmoothing = _fFontSmoothing;
_dwOldFontSmoothingType = _dwFontSmoothingType;
_fOldDragWindow = _fDragWindow;
_fOldKeyboardIndicators = _fKeyboardIndicators;
_dwOldAnimationEffect = _dwAnimationEffect;
_fOldMenuShadows = _fMenuShadows;
return hr;
}
HRESULT CEffectState::Save(void)
{
// ClassicSystemParametersInfo() will hang if a top level window is hung (#162570) and USER will not fix that bug.
// Therefore, we need to make that API call on a background thread because we need to
// be more rebust than to hang.
AddRef();
SPICreateThread(Save_WorkerProc, (void *)this);
return S_OK;
}
DWORD CEffectState::Save_WorkerProc(void * pvThis)
{
CEffectState * pThis = (CEffectState *) pvThis;
if (pThis)
{
pThis->_SaveWorkerProc();
}
return 0;
}
HRESULT CEffectState::_SaveWorkerProc(void)
{
HRESULT hr = S_OK;
// First pass to persist the settings.
hr = _SaveSettings(FALSE);
if (SUCCEEDED(hr))
{
// Second pass to broadcast the change. This may hang if apps are hung.
// This pass may only make it half way thru before it aborts. In some cases
// it's only given 30 seconds to do it's work. If no apps are hung, that should be
// fine. This is cancelled after a period of time because we need this process to go
// away, or the Display CPL will not open again if the user launches it again.
hr = _SaveSettings(TRUE);
}
Release();
return hr;
}
// POSSIBLE FUTURE PERF REFINEMENT:
// We could optimize this by checking if we have more than 5 or so
// broadcasts to make. Then don't send the broadcasts on SystemParametersInfo()
// but instead with WM_WININICHANGE with 0,0. This may reduce flicker.
HRESULT CEffectState::_SaveSettings(BOOL fBroadcast)
{
HRESULT hr = S_OK;
BOOL bDorked = FALSE;
DWORD dwUpdateFlags = (fBroadcast ? (SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE) : SPIF_UPDATEINIFILE);
BOOL bSendSettingsChange = FALSE;
// Full Color Icons
if(_nOldHighIconColor != _nHighIconColor)
{
SetRegValueInt(HKEY_CURRENT_USER, SZ_REGKEY_USERMETRICS, SZ_REGVALUE_ICONCOLORDEPTH, _nHighIconColor);
if ((GetBitsPerPixel() < 16) && (_nHighIconColor == 16)) // Display mode won't support icon high colors
{
}
else
{
_nOldHighIconColor = _nHighIconColor;
bSendSettingsChange = TRUE;
}
}
// Full window drag
if (_fOldDragWindow != _fDragWindow)
{
if (fBroadcast)
{
_fOldDragWindow = _fDragWindow;
}
if (!IsTSPerfFlagEnabled(TSPerFlag_NoWindowDrag))
{
ClassicSystemParametersInfo(SPI_SETDRAGFULLWINDOWS, _fDragWindow, 0, dwUpdateFlags);
}
// we need to send this because the tray's autohide switches off this
bSendSettingsChange = TRUE;
}
// Show Menu Shadows
if (_fOldMenuShadows != _fMenuShadows)
{
if (fBroadcast)
{
_fOldMenuShadows = _fMenuShadows;
}
ClassicSystemParametersInfo(SPI_SETDROPSHADOW, 0, IntToPtr(_fMenuShadows), dwUpdateFlags);
// we need to send this because the tray's autohide switches off this
PostMessageBroadAsync(WM_SETTINGCHANGE, 0, 0);
bSendSettingsChange = TRUE;
}
// Font smoothing
if ((_fOldFontSmoothing != _fFontSmoothing) || (_dwOldFontSmoothingType != _dwFontSmoothingType))
{
if (!_fFontSmoothing)
{
// #168059: If font smoothing is off, we need to set SPI_SETFONTSMOOTHINGTYPE to xxx
// Otherwise, it will still use ClearType.
_dwFontSmoothingType = FONT_SMOOTHING_MONO;
}
ClassicSystemParametersInfo(SPI_SETFONTSMOOTHINGTYPE, 0, (PVOID)UlongToPtr(_dwFontSmoothingType), dwUpdateFlags);
if (fBroadcast)
{
_dwOldFontSmoothingType = _dwFontSmoothingType;
_fOldFontSmoothing = _fFontSmoothing;
}
ClassicSystemParametersInfo(SPI_SETFONTSMOOTHING, _fFontSmoothing, 0, dwUpdateFlags);
if (fBroadcast)
{
// Now have the windows repaint with the change. Whistler #179531
RedrawWindow(NULL, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_ERASENOW | RDW_UPDATENOW | RDW_ALLCHILDREN);
}
}
// Menu animations
if ((_wpOldMenuAnimation != _wpMenuAnimation) || (_dwOldAnimationEffect != _dwAnimationEffect))
{
if (fBroadcast)
{
_wpOldMenuAnimation = _wpMenuAnimation;
}
SetAnimations(_wpMenuAnimation, _dwAnimationEffect, dwUpdateFlags);
if (fBroadcast)
{
_dwOldAnimationEffect = _dwAnimationEffect;
}
}
// Keyboard indicators
if (_fOldKeyboardIndicators != _fKeyboardIndicators)
{
if (fBroadcast)
{
_fOldKeyboardIndicators = _fKeyboardIndicators;
}
// Are we turning this on? (!_fKeyboardIndicators means "don't show" -> hide)
if (!_fKeyboardIndicators)
{
// Yes, on: hide the key cues, turn on the mechanism
ClassicSystemParametersInfo(SPI_SETKEYBOARDINDICATORS, 0, IntToPtr(_fKeyboardIndicators), dwUpdateFlags);
PostMessageBroadAsync(WM_CHANGEUISTATE, MAKEWPARAM(UIS_SET, UISF_HIDEFOCUS | UISF_HIDEACCEL), 0);
}
else
{
// No, off: means show the keycues, turn off the mechanism
PostMessageBroadAsync(WM_CHANGEUISTATE, MAKEWPARAM(UIS_CLEAR, UISF_HIDEFOCUS | UISF_HIDEACCEL), 0);
ClassicSystemParametersInfo(SPI_SETKEYBOARDINDICATORS, 0, IntToPtr(_fKeyboardIndicators), dwUpdateFlags);
}
}
// Large Icons
bSendSettingsChange = ChangeIconSizes(_nOldLargeIcon, _nLargeIcon);
if (bSendSettingsChange)
{
if (fBroadcast)
{
_nOldLargeIcon = _nLargeIcon;
}
bDorked = TRUE;
}
// Make the system notice we changed the system icons
if (bDorked)
{
PFNSHUPDATERECYCLEBINICON pfnSHUpdateRecycleBinIcon = NULL;
SHChangeNotify(SHCNE_ASSOCCHANGED, 0, NULL, NULL); // should do the trick!
// Load SHUpdateRecycleBinIcon() if it exists
HINSTANCE hmodShell32 = LoadLibrary(SZ_SHELL32);
if (hmodShell32)
{
pfnSHUpdateRecycleBinIcon = (PFNSHUPDATERECYCLEBINICON)GetProcAddress(hmodShell32, SZ_SHUPDATERECYCLEBINICON);
if (pfnSHUpdateRecycleBinIcon != NULL)
{
pfnSHUpdateRecycleBinIcon();
}
FreeLibrary(hmodShell32);
}
}
if (bSendSettingsChange)
{
// We post this message because if an app is hung or slow, we don't want to hang.
PostMessageBroadAsync(WM_SETTINGCHANGE, 0, 0);
}
return hr;
}
HRESULT CEffectState::Clone(OUT CEffectState ** ppEffectClone)
{
HRESULT hr = E_OUTOFMEMORY;
*ppEffectClone = new CEffectState();
if (*ppEffectClone)
{
hr = S_OK;
(*ppEffectClone)->_nLargeIcon = _nLargeIcon;
(*ppEffectClone)->_nHighIconColor = _nHighIconColor;
(*ppEffectClone)->_wpMenuAnimation = _wpMenuAnimation;
(*ppEffectClone)->_fFontSmoothing = _fFontSmoothing;
(*ppEffectClone)->_dwFontSmoothingType = _dwFontSmoothingType;
(*ppEffectClone)->_fDragWindow = _fDragWindow;
(*ppEffectClone)->_fKeyboardIndicators = _fKeyboardIndicators;
(*ppEffectClone)->_dwAnimationEffect = _dwAnimationEffect;
(*ppEffectClone)->_fMenuShadows = _fMenuShadows;
(*ppEffectClone)->_nOldLargeIcon = _nOldLargeIcon;
(*ppEffectClone)->_nOldHighIconColor = _nOldHighIconColor;
(*ppEffectClone)->_wpOldMenuAnimation = _wpOldMenuAnimation;
(*ppEffectClone)->_fOldFontSmoothing = _fOldFontSmoothing;
(*ppEffectClone)->_dwOldFontSmoothingType = _dwOldFontSmoothingType;
(*ppEffectClone)->_fOldDragWindow = _fOldDragWindow;
(*ppEffectClone)->_fOldKeyboardIndicators = _fOldKeyboardIndicators;
(*ppEffectClone)->_dwOldAnimationEffect = _dwOldAnimationEffect;
(*ppEffectClone)->_fOldMenuShadows = _fOldMenuShadows;
}
return hr;
}
BOOL CEffectState::IsDirty(void)
{
BOOL fDirty = FALSE;
if ((_nLargeIcon != _nOldLargeIcon) ||
(_nHighIconColor != _nOldHighIconColor) ||
(_wpMenuAnimation != _wpOldMenuAnimation) ||
(_fFontSmoothing != _fOldFontSmoothing) ||
(_dwFontSmoothingType != _dwOldFontSmoothingType) ||
(_fDragWindow != _fOldDragWindow) ||
(_fMenuShadows != _fOldMenuShadows) ||
(_fKeyboardIndicators != _fOldKeyboardIndicators) ||
(_dwAnimationEffect != _dwOldAnimationEffect))
{
fDirty = TRUE;
}
return fDirty;
}
ULONG CEffectState::AddRef()
{
return InterlockedIncrement(&m_cRef);
}
ULONG CEffectState::Release()
{
if (InterlockedDecrement(&m_cRef))
return m_cRef;
delete this;
return 0;
}