dolphin/Branches/MusicMod/Player/Src/Emabox/Emabox.cpp

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/*//////////////////////////////////////////////////////////////////////////////
// ExtraMessageBox
//
// Copyright <20> 2006 Sebastian Pipping <webmaster@hartwork.org>
//
// --> http://www.hartwork.org
//
// This source code is released under the GNU General Public License (GPL).
// See GPL.txt for details. Any non-GPL usage is strictly forbidden.
//////////////////////////////////////////////////////////////////////////////*/
/*
TODO
* realign/recenter after height change
* tab stop order when adding buttons
* offer extra callback?
* auto click timer (one button after XXX seconds)
* allow several checkboxes? radio buttons?
MB_YESNO
MB_YESNOCANCEL
--> MB_YESNOALL
--> MB_YESNOCANCELALL
--> MB_DEFBUTTON5
--> IDNOALL
--> IDYESALL
*/
#include "Emabox.h"
#define FUNCTION_NORMAL 0
#define FUNCTION_EXTENDED 1
#define FUNCTION_INDIRECT 2
const int SPACE_UNDER_CHECKBOX = 10;
const int SPACE_EXTRA_BOTTOM = 4;
TCHAR * const szNeverAgain = TEXT( "Do not show again" );
TCHAR * const szRememberChoice = TEXT( "Remember my choice" );
DWORD dwTlsSlot = TLS_OUT_OF_INDEXES;
#ifdef EMA_AUTOINIT
int bEmaInitDone = 0;
#endif
struct StructEmaBoxData
{
int * bCheckState;
HHOOK hCBT; /* CBT hook handle */
WNDPROC WndprocMsgBoxBackup; /* Old wndproc */
UINT uType; /* Message box type */
HWND hCheck; /* Checkbox handle */
};
typedef struct StructEmaBoxData EmaBoxData;
void RectScreenToClient( const HWND h, RECT * const r )
{
POINT p;
RECT after;
p.x = r->left;
p.y = r->top;
ScreenToClient( h, &p );
after.left = p.x;
after.right = p.x + r->right - r->left;
after.top = p.y;
after.bottom = p.y + r->bottom - r->top;
memcpy( r, &after, sizeof( RECT ) );
}
LRESULT CALLBACK WndprocMsgBox( HWND hwnd, UINT message, WPARAM wp, LPARAM lp )
{
/* Find data */
EmaBoxData * const data = ( EmaBoxData * )TlsGetValue( dwTlsSlot );
switch( message )
{
case WM_COMMAND:
if( HIWORD( wp ) == BN_CLICKED )
{
if( !data->hCheck || ( ( HWND )lp != data->hCheck ) ) break;
{
const LRESULT res = SendMessage( ( HWND )lp, BM_GETSTATE, 0, 0 );
const int bCheckedAfter = ( ( res & BST_CHECKED ) == 0 );
/* Update external variable */
*( data->bCheckState ) = bCheckedAfter ? 1 : 0;
SendMessage( ( HWND )lp, BM_SETCHECK, ( bCheckedAfter ) ? BST_CHECKED : 0, 0 );
}
}
break;
case WM_INITDIALOG:
{
/* Add checkbox */
if( ( data->uType & MB_CHECKMASC ) != 0 )
{
int SPACE_OVER_CHECKBOX;
HDC hdc;
RECT rw; /* Window rect */
RECT rc; /* Client rect */
HWND hText; /* Message handle */
RECT rt; /* Message rect */
int iLabelHeight;
TCHAR * szCheckboxLabel; /* Checkbox label */
int iWindowWidthBefore;
int iWindowHeightBefore;
int iClientWidthBefore;
int iClientHeightBefore;
int iNeverAgainWidth;
int iNeverAgainHeight;
/* Get original window dimensions */
GetWindowRect( hwnd, &rw );
iWindowWidthBefore = rw.right - rw.left;
iWindowHeightBefore = rw.bottom - rw.top;
GetClientRect( hwnd, &rc );
iClientWidthBefore = rc.right - rc.left;
iClientHeightBefore = rc.bottom - rc.top;
{
/* Find handle of the text label */
HWND hFirstStatic;
HWND hSecondStatic;
hFirstStatic = FindWindowEx( hwnd, NULL, TEXT( "STATIC" ), NULL );
if( !hFirstStatic ) break;
hSecondStatic = FindWindowEx( hwnd, hFirstStatic, TEXT( "STATIC" ), NULL );
if( !hSecondStatic )
{
/* Only one static means no icon. */
/* So hFirstStatic must be the text window. */
hText = hFirstStatic;
}
else
{
TCHAR szBuf[ 2 ] = TEXT( "" );
if( !GetWindowText( hSecondStatic, szBuf, 2 ) ) break;
if( *szBuf != TEXT( '\0' ) )
{
/* Has text so it must be the label */
hText = hSecondStatic;
}
else
{
hText = hFirstStatic;
}
}
}
GetWindowRect( hText, &rt );
RectScreenToClient( hwnd, &rt );
iLabelHeight = rt.bottom - rt.top;
{
/* Get distance between label and the buttons */
HWND hAnyButton;
RECT rab;
hAnyButton = FindWindowEx( hwnd, NULL, TEXT( "BUTTON" ), NULL );
if( !hAnyButton ) break;
GetWindowRect( hAnyButton, &rab );
RectScreenToClient( hwnd, &rab );
SPACE_OVER_CHECKBOX = rab.top - rt.bottom;
}
szCheckboxLabel = ( data->uType & MB_CHECKNEVERAGAIN )
? EMA_TEXT_NEVER_AGAIN
: EMA_TEXT_REMEMBER_CHOICE;
/* Add checkbox */
data->hCheck = CreateWindow(
TEXT( "BUTTON" ),
szCheckboxLabel,
WS_CHILD |
WS_VISIBLE |
WS_TABSTOP |
BS_VCENTER |
BS_CHECKBOX,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
hwnd,
NULL,
GetModuleHandle( NULL ),
NULL
);
/* Set initial check state */
SendMessage( data->hCheck, BM_SETCHECK, *( data->bCheckState ) ? BST_CHECKED : 0, 0 );
{
/* Apply default font */
const int cyMenuSize = GetSystemMetrics( SM_CYMENUSIZE );
const int cxMenuSize = GetSystemMetrics( SM_CXMENUSIZE );
const HFONT hNewFont = ( HFONT )GetStockObject( DEFAULT_GUI_FONT );
HFONT hOldFont;
SIZE size;
SendMessage( data->hCheck, WM_SETFONT, ( WPARAM )hNewFont, ( LPARAM )TRUE );
hdc = GetDC( data->hCheck );
hOldFont = ( HFONT )SelectObject( hdc, GetStockObject( DEFAULT_GUI_FONT ) );
GetTextExtentPoint32( hdc, szCheckboxLabel, _tcslen( szCheckboxLabel ), &size );
SelectObject( hdc, hOldFont );
ReleaseDC( data->hCheck, hdc );
iNeverAgainWidth = cxMenuSize + size.cx + 1;
iNeverAgainHeight = ( cyMenuSize > size.cy ) ? cyMenuSize : size.cy;
}
MoveWindow(
data->hCheck,
( iClientWidthBefore - ( iNeverAgainWidth ) ) / 2,
rt.top + iLabelHeight + SPACE_OVER_CHECKBOX,
iNeverAgainWidth,
iNeverAgainHeight,
FALSE
);
{
/* Move all buttons down (except the checkbox) */
const int iDistance = iNeverAgainHeight + SPACE_UNDER_CHECKBOX;
HWND hLastButton = NULL;
RECT rb;
for( ; ; )
{
hLastButton = FindWindowEx( hwnd, hLastButton, TEXT( "BUTTON" ), NULL );
if( !hLastButton ) break;
if( hLastButton == data->hCheck ) continue;
GetWindowRect( hLastButton, &rb );
RectScreenToClient( hwnd, &rb );
MoveWindow( hLastButton, rb.left, rb.top + iDistance, rb.right - rb.left, rb.bottom - rb.top, FALSE );
}
/* Enlarge dialog */
MoveWindow( hwnd, rw.left, rw.top, iWindowWidthBefore, iWindowHeightBefore + iDistance + SPACE_EXTRA_BOTTOM, FALSE );
}
}
else
{
data->hCheck = NULL;
}
/* Modify close button */
switch( data->uType & MB_CLOSEMASK )
{
case MB_DISABLECLOSE:
{
const HMENU hSysMenu = GetSystemMenu( hwnd, FALSE );
EnableMenuItem( hSysMenu, SC_CLOSE, MF_BYCOMMAND | MF_GRAYED );
}
break;
case MB_NOCLOSE:
{
const LONG style = GetWindowLong( hwnd, GWL_STYLE );
if( ( style & WS_SYSMENU ) == 0 ) break;
SetWindowLong( hwnd, GWL_STYLE, ( LONG )( style - WS_SYSMENU ) );
}
break;
}
}
break;
}
return CallWindowProc( data->WndprocMsgBoxBackup, hwnd, message, wp, lp );
}
/* int bFound = 0; */
LRESULT CALLBACK HookprocMsgBox( int code, WPARAM wp, LPARAM lp )
{
/* Get hook handle */
EmaBoxData * const data = ( EmaBoxData * )TlsGetValue( dwTlsSlot );
if( code == HCBT_CREATEWND )
{
/* MSDN says WE CANNOT TRUST "CBT_CREATEWND" */
/* so we use only the window handle */
/* and get the class name using "GetClassName". (-> Q106079) */
HWND hwnd = ( HWND )wp;
/* Check windowclass */
TCHAR szClass[ 7 ] = TEXT( "" );
GetClassName( hwnd, szClass, 7 );
if( !_tcscmp( szClass, TEXT( "#32770" ) ) )
{
/*
if( bFound )
{
return CallNextHookEx( hCBT, code, wp, lp );
}
bFound = 1;
*/
/* Exchange window procedure */
data->WndprocMsgBoxBackup = ( WNDPROC )GetWindowLong( hwnd, GWL_WNDPROC );
if( data->WndprocMsgBoxBackup != NULL )
{
SetWindowLong( hwnd, GWL_WNDPROC, ( LONG )WndprocMsgBox );
}
}
}
return CallNextHookEx( data->hCBT, code, wp, lp );
}
int ExtraAllTheSame( const HWND hWnd, const LPCTSTR lpText, const LPCTSTR lpCaption, const UINT uType, const WORD wLanguageId, const LPMSGBOXPARAMS lpMsgBoxParams, int * const pbCheckRes, const int iFunction )
{
EmaBoxData * data;
HHOOK hCBT;
int res;
#ifdef EMA_AUTOINIT
if( !bEmaInitDone )
{
EmaBoxLive();
bEmaInitDone = 1;
}
#endif
/* Create thread data */
data = ( EmaBoxData * )LocalAlloc( NONZEROLPTR, sizeof( EmaBoxData ) );
TlsSetValue( dwTlsSlot, data );
data->bCheckState = pbCheckRes;
data->uType = ( iFunction != FUNCTION_INDIRECT ) ? uType : lpMsgBoxParams->dwStyle;
/* Setup this-thread-only hook */
hCBT = SetWindowsHookEx( WH_CBT, &HookprocMsgBox, GetModuleHandle( NULL ), GetCurrentThreadId() );
switch( iFunction )
{
case FUNCTION_NORMAL:
res = MessageBox( hWnd, lpText, lpCaption, uType );
break;
case FUNCTION_EXTENDED:
res = MessageBoxEx( hWnd, lpText, lpCaption, uType, wLanguageId );
break;
case FUNCTION_INDIRECT:
res = MessageBoxIndirect( lpMsgBoxParams );
break;
}
/* Remove hook */
if( hCBT != NULL ) UnhookWindowsHookEx( hCBT );
/* Destroy thread data */
LocalFree( ( HLOCAL )data );
return res;
}
int EmaBox( HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType, int * pbCheckRes )
{
/* Check extra flags */
if( ( uType & MB_EXTRAMASC ) == 0 )
{
/* No extra */
return MessageBox( hWnd, lpText, lpCaption, uType );
}
return ExtraAllTheSame( hWnd, lpText, lpCaption, uType, 0, NULL, pbCheckRes, FUNCTION_NORMAL );
}
int EmaBoxEx( HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType, WORD wLanguageId, int * pbCheckRes )
{
/* Check extra flags */
if( ( uType & MB_EXTRAMASC ) == 0 )
{
/* No extra */
return MessageBoxEx( hWnd, lpText, lpCaption, uType, wLanguageId );
}
return ExtraAllTheSame( hWnd, lpText, lpCaption, uType, wLanguageId, NULL, pbCheckRes, FUNCTION_EXTENDED );
}
int EmaBoxIndirect( const LPMSGBOXPARAMS lpMsgBoxParams, int * pbCheckRes )
{
/* Check extra flags */
if( ( lpMsgBoxParams->dwStyle & MB_EXTRAMASC ) == 0 )
{
/* No extra */
return MessageBoxIndirect( lpMsgBoxParams );
}
return ExtraAllTheSame( NULL, NULL, NULL, 0, 0, lpMsgBoxParams, pbCheckRes, FUNCTION_INDIRECT );
}
int EmaBoxLive()
{
dwTlsSlot = TlsAlloc();
if( dwTlsSlot == TLS_OUT_OF_INDEXES ) return 0;
return 1;
}
int EmaBoxDie()
{
if( dwTlsSlot == TLS_OUT_OF_INDEXES ) return 0;
TlsFree( dwTlsSlot );
return 1;
}