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// For licensing and usage information, read docs/winui_license.txt
// MASTER
//****************************************************************************

/***************************************************************************

  columnedit.c

  Column Edit dialog

***************************************************************************/

// standard windows headers
#include <windows.h>
#include <windowsx.h>

// MAME/MAMEUI headers
#include "resource.h"
#include "mui_opts.h"

// Returns TRUE if successful
static int DoExchangeItem(HWND hFrom, HWND hTo, int nMinItem)
{
	LV_ITEM lvi;
	TCHAR buf[80];

	lvi.iItem = ListView_GetNextItem(hFrom, -1, LVIS_SELECTED | LVIS_FOCUSED);
	if (lvi.iItem < nMinItem)
	{
		if (lvi.iItem != -1) // Can't remove the first column
			MessageBox(0, TEXT("Cannot Move Selected Item"), TEXT("Move Item"), IDOK);
		SetFocus(hFrom);
		return FALSE;
	}
	lvi.iSubItem   = 0;
	lvi.mask       = LVIF_PARAM | LVIF_TEXT;
	lvi.pszText    = buf;
	lvi.cchTextMax = ARRAY_LENGTH(buf);
	if (ListView_GetItem(hFrom, &lvi))
	{
		// Add this item to the Show and delete it from Available
		BOOL b_res = ListView_DeleteItem(hFrom, lvi.iItem);
		b_res++;
		lvi.iItem = ListView_GetItemCount(hTo);
		(void)ListView_InsertItem(hTo, &lvi);
		ListView_SetItemState(hTo, lvi.iItem, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
		SetFocus(hTo);
		return lvi.iItem;
	}
	return FALSE;
}

static void DoMoveItem( HWND hWnd, BOOL bDown)
{
	LV_ITEM lvi;
	lvi.iItem = ListView_GetNextItem(hWnd, -1, LVIS_SELECTED | LVIS_FOCUSED);
	int nMaxpos = ListView_GetItemCount(hWnd);
	if (lvi.iItem == -1 ||
		(lvi.iItem <  2 && bDown == FALSE) || // Disallow moving First column
		(lvi.iItem == 0 && bDown == TRUE)  || // ""
		(lvi.iItem == nMaxpos - 1 && bDown == TRUE))
	{
		SetFocus(hWnd);
		return;
	}

	TCHAR buf[80];
	lvi.iSubItem   = 0;
	lvi.mask       = LVIF_PARAM | LVIF_TEXT;
	lvi.pszText    = buf;
	lvi.cchTextMax = ARRAY_LENGTH(buf);
	if (ListView_GetItem(hWnd, &lvi))
	{
		// Add this item to the Show and delete it from Available
		BOOL b_res = ListView_DeleteItem(hWnd, lvi.iItem);
		b_res++;
		lvi.iItem += (bDown) ? 1 : -1;
		(void)ListView_InsertItem(hWnd,&lvi);
		ListView_SetItemState(hWnd, lvi.iItem, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
		if (lvi.iItem == nMaxpos - 1)
			EnableWindow(GetDlgItem(GetParent(hWnd), IDC_BUTTONMOVEDOWN), FALSE);
		else
			EnableWindow(GetDlgItem(GetParent(hWnd), IDC_BUTTONMOVEDOWN), TRUE);

		if (lvi.iItem < 2)
			EnableWindow(GetDlgItem(GetParent(hWnd), IDC_BUTTONMOVEUP), FALSE);
		else
			EnableWindow(GetDlgItem(GetParent(hWnd), IDC_BUTTONMOVEUP), TRUE);

		SetFocus(hWnd);
	}
}

INT_PTR InternalColumnDialogProc(HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam,
	int nColumnMax, int *shown, int *order,
	const LPCTSTR *names, void (*pfnGetRealColumnOrder)(int *),
	void (*pfnGetColumnInfo)(int *pnOrder, int *pnShown),
	void (*pfnSetColumnInfo)(int *pnOrder, int *pnShown))
{
	static HWND hShown;
	static HWND hAvailable;
	static BOOL showMsg = FALSE;
	int nShown = 0;
	int nAvail = 0;
	int i, nCount = 0;
	LV_ITEM lvi;
	DWORD dwShowStyle, dwAvailableStyle, dwView = 0;

	switch (Msg)
	{
	case WM_INITDIALOG:
		hShown = GetDlgItem(hDlg, IDC_LISTSHOWCOLUMNS);
		hAvailable = GetDlgItem(hDlg, IDC_LISTAVAILABLECOLUMNS);
		/*Change Style to Always Show Selection */
		dwShowStyle = GetWindowLong(hShown, GWL_STYLE);
		dwAvailableStyle = GetWindowLong(hAvailable, GWL_STYLE);
		dwView = LVS_SHOWSELALWAYS | LVS_LIST;

		/* Only set the window style if the view bits have changed. */
		if ((dwShowStyle & LVS_TYPEMASK) != dwView)
		SetWindowLong(hShown, GWL_STYLE, (dwShowStyle & ~LVS_TYPEMASK) | dwView);
		if ((dwAvailableStyle & LVS_TYPEMASK) != dwView)
		SetWindowLong(hAvailable, GWL_STYLE, (dwAvailableStyle & ~LVS_TYPEMASK) | dwView);

		pfnGetColumnInfo(order, shown);

		showMsg = TRUE;
		nShown = 0;
		nAvail = 0;

		lvi.mask = LVIF_TEXT | LVIF_PARAM;
		lvi.stateMask = 0;
		lvi.iSubItem  = 0;
		lvi.iImage = -1;

		/* Get the Column Order and save it */
		pfnGetRealColumnOrder(order);

		for (i = 0 ; i < nColumnMax; i++)
		{
			lvi.pszText = (TCHAR *) names[order[i]];
			lvi.lParam = order[i];

			if (shown[order[i]])
			{
				lvi.iItem = nShown;
				(void)ListView_InsertItem(hShown, &lvi);
				nShown++;
			}
			else
			{
				lvi.iItem = nAvail;
				(void)ListView_InsertItem(hAvailable, &lvi);
				nAvail++;
			}
		}
		if( nShown > 0)
		{
			/*Set to Second, because first is not allowed*/
			ListView_SetItemState(hShown, 1, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
		}
		if( nAvail > 0)
		{
			ListView_SetItemState(hAvailable, 0, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
		}
		EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD), TRUE);
		return TRUE;

	case WM_NOTIFY:
		{
			NMHDR *nm = (NMHDR *)lParam;
			NM_LISTVIEW *pnmv;
			int nPos = 0;

			switch (nm->code)
			{
			case NM_DBLCLK:
				// Do Data Exchange here, which ListView was double clicked?
				switch (nm->idFrom)
				{
				case IDC_LISTAVAILABLECOLUMNS:
					// Move selected Item from Available to Shown column
					nPos = DoExchangeItem(hAvailable, hShown, 0);
					if (nPos)
					{
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD),      FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
					}
					break;

				case IDC_LISTSHOWCOLUMNS:
					// Move selected Item from Show to Available column
					if (DoExchangeItem(hShown, hAvailable, 1))
					{
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD),      TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
					}
					break;
				}
				return TRUE;

			case LVN_ITEMCHANGED:
				// Don't handle this message for now
				pnmv = (NM_LISTVIEW *)nm;
				if (//!(pnmv->uOldState & LVIS_SELECTED) &&
					(pnmv->uNewState  & LVIS_SELECTED))
				{
					if (pnmv->iItem == 0 && pnmv->hdr.idFrom == IDC_LISTSHOWCOLUMNS)
					{
						// Don't allow selecting the first item
						ListView_SetItemState(hShown, pnmv->iItem,
							LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
						if (showMsg)
						{
							MessageBox(0, TEXT("Changing this item is not permitted"), TEXT("Select Item"), IDOK);
							showMsg = FALSE;
						}
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
						/*Leave Focus on Control*/
						//SetFocus(GetDlgItem(hDlg,IDOK));
						return TRUE;
					}
					else
						showMsg = TRUE;
				}
				if( pnmv->uOldState & LVIS_SELECTED && pnmv->iItem == 0 && pnmv->hdr.idFrom == IDC_LISTSHOWCOLUMNS )
				{
					/*we enable the buttons again, if the first Entry loses selection*/
					EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   TRUE);
					EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   TRUE);
					EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), TRUE);
					//SetFocus(GetDlgItem(hDlg,IDOK));
				}
				break;
			case NM_SETFOCUS:
				{
					switch (nm->idFrom)
					{
					case IDC_LISTAVAILABLECOLUMNS:
						if (ListView_GetItemCount(nm->hwndFrom) != 0)
						{
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD),      TRUE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
						}
						break;
					case IDC_LISTSHOWCOLUMNS:
						if (ListView_GetItemCount(nm->hwndFrom) != 0)
						{
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD), FALSE);

							if (ListView_GetNextItem(hShown, -1, LVIS_SELECTED | LVIS_FOCUSED) == 0 )
							{
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
							}
							else
							{
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   TRUE);
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), TRUE);
								EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   TRUE);
							}
						}
						break;
					}
				}
				break;
			case LVN_KEYDOWN:
			case NM_CLICK:
				pnmv = (NM_LISTVIEW *)nm;
				if (//!(pnmv->uOldState & LVIS_SELECTED) &&
					(pnmv->uNewState  & LVIS_SELECTED))
				{
					if (pnmv->iItem == 0 && pnmv->hdr.idFrom == IDC_LISTSHOWCOLUMNS)
					{
					}
				}
				switch (nm->idFrom)
				{
				case IDC_LISTAVAILABLECOLUMNS:
					if (ListView_GetItemCount(nm->hwndFrom) != 0)
					{
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD),      TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
					}
					break;

				case IDC_LISTSHOWCOLUMNS:
					if (ListView_GetItemCount(nm->hwndFrom) != 0)
					{
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD), FALSE);
						if (ListView_GetNextItem(hShown, -1, LVIS_SELECTED | LVIS_FOCUSED) == 0 )
						{
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   FALSE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
						}
						else
						{
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   TRUE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), TRUE);
							EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   TRUE);
						}
					}
					break;
				}
				//SetFocus( nm->hwndFrom );
				return TRUE;
			}
		}
		return FALSE;
	case WM_COMMAND:
		{
			WORD wID = GET_WM_COMMAND_ID(wParam, lParam);
			HWND hWndCtrl = GET_WM_COMMAND_HWND(wParam, lParam);
			int  nPos = 0;

			switch (wID)
			{
				case IDC_LISTSHOWCOLUMNS:
					break;
				case IDC_BUTTONADD:
					// Move selected Item in Available to Shown
					nPos = DoExchangeItem(hAvailable, hShown, 0);
					if (nPos)
					{
						EnableWindow(hWndCtrl,FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONREMOVE),   TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
					}
					break;

				case IDC_BUTTONREMOVE:
					// Move selected Item in Show to Available
					if (DoExchangeItem( hShown, hAvailable, 1))
					{
						EnableWindow(hWndCtrl,FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONADD),      TRUE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEUP),   FALSE);
						EnableWindow(GetDlgItem(hDlg, IDC_BUTTONMOVEDOWN), FALSE);
					}
					break;

				case IDC_BUTTONMOVEDOWN:
					// Move selected item in the Show window up 1 item
					DoMoveItem(hShown, TRUE);
					break;

				case IDC_BUTTONMOVEUP:
					// Move selected item in the Show window down 1 item
					DoMoveItem(hShown, FALSE);
					break;

				case IDOK:
					// Save users choices
					nShown = ListView_GetItemCount(hShown);
					nAvail = ListView_GetItemCount(hAvailable);
					nCount = 0;
					for (i = 0; i < nShown; i++)
					{
						lvi.iSubItem = 0;
						lvi.mask     = LVIF_PARAM;
						lvi.pszText  = 0;
						lvi.iItem    = i;
						BOOL b_res = ListView_GetItem(hShown, &lvi);
						b_res++;
						order[nCount++]   = lvi.lParam;
						shown[lvi.lParam] = TRUE;
					}
					for (i = 0; i < nAvail; i++)
					{
						lvi.iSubItem = 0;
						lvi.mask     = LVIF_PARAM;
						lvi.pszText  = 0;
						lvi.iItem    = i;
						BOOL b_res = ListView_GetItem(hAvailable, &lvi);
						b_res++;
						order[nCount++]   = lvi.lParam;
						shown[lvi.lParam] = FALSE;
					}
					pfnSetColumnInfo(order, shown);
					EndDialog(hDlg, 1);
					return TRUE;

				case IDCANCEL:
					EndDialog(hDlg, 0);
					return TRUE;
			}
		}
		break;
	}
	return 0;
}

static void GetColumnInfo(int *order, int *shown)
{
	GetColumnOrder(order);
	GetColumnShown(shown);
}

static void SetColumnInfo(int *order, int *shown)
{
	SetColumnOrder(order);
	SetColumnShown(shown);
}

INT_PTR CALLBACK ColumnDialogProc(HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam)
{
	static int shown[COLUMN_MAX];
	static int order[COLUMN_MAX];
	extern const LPCTSTR column_names[COLUMN_MAX]; // from winui.cpp, should improve

	return InternalColumnDialogProc(hDlg, Msg, wParam, lParam, COLUMN_MAX, shown, order, column_names, GetRealColumnOrder, GetColumnInfo, SetColumnInfo);
}