project64/Source/Project64/UserInterface/WTLControls/ClistCtrl/ListCombo.h

435 lines
12 KiB
C++

#pragma once
#include "ListTypes.h"
#include <wtl/atlcrack.h>
class CListCombo : public CWindowImpl< CListCombo, CComboBox >
{
public:
CListCombo() : m_wndEditCtrl( this, 1 )
{
m_nItem = NULL_ITEM;
m_nSubItem = NULL_SUBITEM;
m_nFlags = ITEM_FLAGS_NONE;
m_nExitChar = 0;
m_bMouseOver = FALSE;
m_bActivate = FALSE;
}
~CListCombo()
{
}
protected:
int m_nItem;
int m_nSubItem;
UINT m_nFlags;
TCHAR m_nExitChar;
BOOL m_bMouseOver;
BOOL m_bActivate;
BOOL m_bSwappedButtons;
CRect m_rcStatic;
CRect m_rcButton;
COLORREF m_rgbStaticBackground;
COLORREF m_rgbStaticText;
CFont m_fntComboFont;
CContainedWindowT< CEdit > m_wndEditCtrl;
public:
BOOL Create( HWND hWndParent, int nItem, int nSubItem, CRect& rcRect, UINT nFlags, LPCTSTR lpszItemText, CListArray < stdstr >& aComboList )
{
m_nItem = nItem;
m_nSubItem = nSubItem;
m_nFlags = nFlags;
m_nExitChar = 0;
m_bActivate = FALSE;
m_bSwappedButtons = GetSystemMetrics( SM_SWAPBUTTON );
m_rgbStaticBackground = GetSysColor( COLOR_HIGHLIGHT );
m_rgbStaticText = GetSysColor( COLOR_HIGHLIGHTTEXT );
// destroy old combo control...
if ( IsWindow() )
DestroyWindow();
DWORD dwStyle = WS_CHILD | WS_CLIPCHILDREN | WS_VSCROLL | CBS_AUTOHSCROLL | CBS_SORT;
if ( nFlags & ITEM_FLAGS_COMBO_EDIT )
dwStyle |= CBS_DROPDOWN;
else
dwStyle |= CBS_DROPDOWNLIST;
if ( nFlags & ITEM_FLAGS_EDIT_UPPER )
dwStyle |= CBS_UPPERCASE;
// create combo control
CRect Area( ( ( dwStyle & CBS_DROPDOWNLIST ) == CBS_DROPDOWNLIST ) ? rcRect.left + 3 : rcRect.left + 1, rcRect.top, rcRect.right, rcRect.bottom + ( 6 * rcRect.Height() ) );
if ( CWindowImpl< CListCombo, CComboBox >::Create( hWndParent, Area, NULL, dwStyle ) == NULL )
return FALSE;
// get system message font
CLogFont logFont;
logFont.SetMessageBoxFont();
if ( !m_fntComboFont.IsNull() )
m_fntComboFont.DeleteObject();
if ( m_fntComboFont.CreateFontIndirect( &logFont ) == NULL )
return FALSE;
SetFont( m_fntComboFont, FALSE );
// subclass edit control to capture keyboard input
HWND hEditControl = GetWindow( GW_CHILD );
if ( hEditControl != NULL )
m_wndEditCtrl.SubclassWindow( hEditControl );
for ( int nComboItem = 0; nComboItem < aComboList.GetSize(); nComboItem++ )
AddString( aComboList[ nComboItem ].c_str() );
if ( ( dwStyle & CBS_DROPDOWNLIST ) == CBS_DROPDOWNLIST )
{
int nIndex = FindStringExact( -1, lpszItemText );
if ( nIndex != CB_ERR )
SetCurSel( nIndex );
}
else
{
SetWindowText( lpszItemText );
SetEditSel( 0, -1 );
}
// set static edit height
SetItemHeight( -1, rcRect.Height() - 6 );
COMBOBOXINFO infoComboBox = { sizeof( COMBOBOXINFO ) };
if ( !::GetComboBoxInfo( m_hWnd, &infoComboBox ) )
return FALSE;
// store combobox details for painting
m_rcStatic = infoComboBox.rcItem;
m_rcButton = infoComboBox.rcButton;
m_rcButton.DeflateRect( 0, 1 );
m_rcButton.OffsetRect( -2, 0 );
// show combo control
ShowWindow( SW_SHOW );
SetFocus();
// force redraw now
RedrawWindow();
return TRUE;
}
BOOL IsValid( TCHAR nChar )
{
// validate number and float input
if ( !( m_nFlags & ( ITEM_FLAGS_EDIT_NUMBER | ITEM_FLAGS_EDIT_FLOAT ) ) || nChar == VK_BACK )
return TRUE;
stdstr strValue;
int nValueLength = GetWindowTextLength() + 1;
strValue.reserve(nValueLength);
GetWindowText( (char *)strValue.c_str(), nValueLength );
// get selected positions
DWORD dwSelection = GetEditSel();
int nStartChar = LOWORD( dwSelection );
int nEndChar = HIWORD( dwSelection );
// are we changing the sign?
if ( ( m_nFlags & ITEM_FLAGS_EDIT_NEGATIVE ) && nChar == _T( '-' ) )
{
BOOL bNegative = FALSE;
if ( m_nFlags & ITEM_FLAGS_EDIT_FLOAT )
{
double dblValue = atof( strValue.c_str() );
bNegative = ( dblValue < 0 );
strValue.Format( _T( "%lf" ), -dblValue );
}
else
{
long lValue = _ttol( strValue.c_str() );
bNegative = ( lValue < 0 );
strValue.Format( _T( "%ld" ), -lValue );
}
SetWindowText( strValue.c_str() );
// restore select position
SetEditSel( bNegative ? nStartChar - 1 : nStartChar + 1, bNegative ? nEndChar - 1 : nEndChar + 1 );
return FALSE;
}
// construct new value string using entered character
stdstr strNewValue = strValue.substr(0, nStartChar ) + nChar + strValue.substr(nEndChar, strValue.length() - nEndChar );
int nGreaterThan = 0;
int nLessThan = 0;
int nEquals = 0;
int nDecimalPoint = 0;
int nNegativeIndex = -1;
int nGreaterIndex = -1;
int nLessIndex = -1;
int nEqualIndex = -1;
int nDecimalIndex = -1;
int nDigitIndex = -1;
for ( int nCharIndex = 0; nCharIndex < (int)strNewValue.length(); nCharIndex++ )
{
TCHAR nCharValue = (strNewValue.c_str())[ nCharIndex ];
switch ( nCharValue )
{
case _T( '-' ): nNegativeIndex = nCharIndex;
break;
case _T( '>' ): if ( !( m_nFlags & ITEM_FLAGS_EDIT_OPERATOR ) )
return FALSE;
nGreaterIndex = nCharIndex;
nGreaterThan++;
break;
case _T( '<' ): if ( !( m_nFlags & ITEM_FLAGS_EDIT_OPERATOR ) )
return FALSE;
nLessIndex = nCharIndex;
nLessThan++;
break;
case _T( '=' ): if ( !( m_nFlags & ITEM_FLAGS_EDIT_OPERATOR ) )
return FALSE;
nEqualIndex = nCharIndex;
nEquals++;
break;
case _T( '.' ): if ( !( m_nFlags & ITEM_FLAGS_EDIT_FLOAT ) )
return FALSE;
nDecimalIndex = nCharIndex;
nDecimalPoint++;
break;
default: if ( !_istdigit( nCharValue ) )
return FALSE;
if ( nDigitIndex < 0 )
nDigitIndex = nCharIndex;
break;
}
// invalid if text contains more than one '>', '<', '=' or '.'
if ( nGreaterThan > 1 || nLessThan > 1 || nEquals > 1 || nDecimalPoint > 1 )
return FALSE;
}
// invalid if text contains '=>' or '=<'
if ( nGreaterIndex != -1 && nEqualIndex != -1 && nGreaterIndex > nEqualIndex )
return FALSE;
if ( nLessIndex != -1 && nEqualIndex != -1 && nLessIndex > nEqualIndex )
return FALSE;
// invalid if digits exist before operator
if ( nDigitIndex != -1 && nGreaterIndex != -1 && nGreaterIndex > nDigitIndex )
return FALSE;
if ( nDigitIndex != -1 && nLessIndex != -1 && nLessIndex > nDigitIndex )
return FALSE;
if ( nDigitIndex != -1 && nEqualIndex != -1 && nEqualIndex > nDigitIndex )
return FALSE;
if ( nDigitIndex != -1 && nNegativeIndex != -1 && nNegativeIndex > nDigitIndex )
return FALSE;
return TRUE;
}
BEGIN_MSG_MAP_EX(CListCombo)
MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST,WM_MOUSELAST,OnMouseRange)
#if(_WIN32_WINNT >= 0x0400)
MSG_WM_MOUSELEAVE(OnMouseLeave)
#endif
MSG_WM_ERASEBKGND(OnEraseBkgnd)
MSG_WM_PAINT(OnPaint)
REFLECTED_COMMAND_CODE_HANDLER_EX(CBN_KILLFOCUS, OnKillFocus)
MSG_WM_GETDLGCODE(OnGetDlgCode)
MSG_WM_CHAR(OnChar)
DEFAULT_REFLECTION_HANDLER()
ALT_MSG_MAP(1)
MSG_WM_GETDLGCODE(OnGetDlgCode)
MSG_WM_CHAR(OnChar)
END_MSG_MAP()
LRESULT OnMouseRange( UINT nMessage, WPARAM /*wParam*/, LPARAM /*lParam*/ )
{
SetMsgHandled( FALSE );
if ( nMessage == WM_MOUSEMOVE && !m_bMouseOver )
{
m_bMouseOver = TRUE;
TRACKMOUSEEVENT trkMouse;
trkMouse.cbSize = sizeof( TRACKMOUSEEVENT );
trkMouse.dwFlags = TME_LEAVE;
trkMouse.hwndTrack = m_hWnd;
// notify when the mouse leaves button
_TrackMouseEvent( &trkMouse );
}
// do not show button as pressed when first created
m_bActivate = TRUE;
InvalidateRect( m_rcButton );
return 0;
}
void OnMouseLeave()
{
m_bMouseOver = FALSE;
InvalidateRect( m_rcButton );
}
BOOL OnEraseBkgnd( CDCHandle dcErase )
{
return TRUE;
}
void OnPaint( HDC )
{
CPaintDC dcPaint( m_hWnd );
CRect rcClient;
GetClientRect( rcClient );
CMemoryDC dcMemory( dcPaint.m_hDC, rcClient );
CRect rcClip;
if ( dcPaint.GetClipBox( rcClip ) == ERROR )
return;
int nContextState = dcMemory.SaveDC();
// do not repaint background if drawing button only
if ( !rcClip.EqualRect( m_rcButton ) )
{
CWindow wndParent( GetParent() );
if ( wndParent.IsWindow() )
{
// draw background from parent
CPoint ptOrigin( 0 );
MapWindowPoints( wndParent, &ptOrigin, 1 );
dcMemory.OffsetWindowOrg( ptOrigin.x, ptOrigin.y, &ptOrigin );
wndParent.SendMessage( WM_PAINT, (WPARAM)dcMemory.m_hDC );
dcMemory.SetWindowOrg( ptOrigin );
}
}
DWORD dwPoint = GetMessagePos();
CPoint ptMouse( GET_X_LPARAM( dwPoint ), GET_Y_LPARAM( dwPoint ) );
ScreenToClient( &ptMouse );
DWORD dwStyle = GetStyle();
BOOL bHotButton = m_bActivate && ( ( ( dwStyle & CBS_DROPDOWNLIST ) == CBS_DROPDOWNLIST ) ? rcClient.PtInRect( ptMouse ) : m_rcButton.PtInRect( ptMouse ) );
BOOL bPressed = bHotButton && ( GetAsyncKeyState( m_bSwappedButtons ? VK_RBUTTON : VK_LBUTTON ) < 0 );
if ( ( dwStyle & CBS_DROPDOWNLIST ) == CBS_DROPDOWNLIST && !rcClip.EqualRect( m_rcButton ) )
{
dcMemory.SetBkColor( m_rgbStaticBackground );
dcMemory.ExtTextOut( m_rcStatic.left, m_rcStatic.top, ETO_OPAQUE, m_rcStatic, _T( "" ), 0, NULL );
// draw static text
int nIndex = GetCurSel();
if ( nIndex != CB_ERR )
{
stdstr strText;
int cchLen = GetLBTextLen(nIndex);
if(cchLen != CB_ERR)
{
strText.reserve(cchLen + 1);
GetLBText( nIndex, (LPTSTR)strText.c_str() );
}
if ( !strText.empty() )
{
CRect rcText( m_rcStatic );
rcText.OffsetRect( 1, 1 );
dcMemory.SelectFont( m_fntComboFont );
dcMemory.SetTextColor( m_rgbStaticText );
dcMemory.SetBkMode( TRANSPARENT );
dcMemory.DrawText( strText.c_str(), (int)strText.length(), rcText, DT_LEFT | DT_SINGLELINE | DT_NOPREFIX | DT_VCENTER );
}
}
}
// draw drop down button
dcMemory.DrawFrameControl( m_rcButton, DFC_SCROLL, DFCS_SCROLLDOWN | ( bPressed ? DFCS_FLAT | DFCS_PUSHED : 0 ) );
dcMemory.RestoreDC( nContextState );
}
void OnKillFocus( UINT /*uCode*/, int /*nCtrlID*/, HWND /*hwndCtrl*/ )
{
SetMsgHandled( FALSE );
CWindow wndParent( GetParent() );
if ( wndParent.IsWindow() )
{
stdstr strValue;
if ( ( GetStyle() & CBS_DROPDOWNLIST ) == CBS_DROPDOWNLIST )
{
int nIndex = GetCurSel();
if ( nIndex != CB_ERR )
{
int cchLen = GetLBTextLen(nIndex);
if(cchLen != CB_ERR)
{
strValue.reserve(cchLen);
GetLBText( nIndex, (LPTSTR)strValue.c_str() );
}
else
{
strValue = "";
}
}
}
else
{
int nValueLength = GetWindowTextLength() + 1;
strValue.reserve(nValueLength);
GetWindowText( (LPTSTR)strValue.c_str(), nValueLength );
}
CListNotify listNotify;
listNotify.m_hdrNotify.hwndFrom = m_hWnd;
listNotify.m_hdrNotify.idFrom = GetDlgCtrlID();
listNotify.m_hdrNotify.code = LCN_ENDEDIT;
listNotify.m_nItem = m_nItem;
listNotify.m_nSubItem = m_nSubItem;
listNotify.m_nExitChar = m_nExitChar;
listNotify.m_lpszItemText = strValue.c_str();
listNotify.m_lpItemDate = NULL;
// forward notification to parent
FORWARD_WM_NOTIFY( wndParent, listNotify.m_hdrNotify.idFrom, &listNotify.m_hdrNotify, ::SendMessage );
}
ShowWindow( SW_HIDE );
}
UINT OnGetDlgCode( LPMSG /*lpMessage*/ )
{
return DLGC_WANTALLKEYS;
}
void OnChar( TCHAR nChar, UINT /*nRepCnt*/, UINT /*nFlags*/ )
{
switch ( nChar )
{
case VK_TAB:
case VK_RETURN:
case VK_ESCAPE: {
m_nExitChar = nChar;
CWindow wndParent( GetParent() );
if ( wndParent.IsWindow() )
wndParent.SetFocus();
}
break;
default: SetMsgHandled( !IsValid( nChar ) );
break;
}
}
};