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win32: allow multiselect in cheat dialog, handle delete and selection
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(#916)
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@OV2
OV2 committed May 8, 2024
1 parent add607c commit be53955
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Showing 2 changed files with 95 additions and 47 deletions.
2 changes: 1 addition & 1 deletion win32/rsrc/snes9x.rc
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Original file line number Diff line number Diff line change
Expand Up @@ -241,7 +241,7 @@ STYLE DS_SETFONT | DS_SETFOREGROUND | DS_3DLOOK | DS_FIXEDSYS | DS_CENTER | WS_M
CAPTION "Cheat Entry and Editor"
FONT 8, "MS Shell Dlg", 400, 0, 0x1
BEGIN
CONTROL "List1",IDC_CHEAT_LIST,"SysListView32",LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS | LVS_NOSORTHEADER | WS_BORDER | WS_TABSTOP,6,6,294,120,WS_EX_CLIENTEDGE
CONTROL "List1",IDC_CHEAT_LIST,"SysListView32",LVS_REPORT | LVS_SHOWSELALWAYS | LVS_NOSORTHEADER | WS_BORDER | WS_TABSTOP,6,6,294,120,WS_EX_CLIENTEDGE
DEFPUSHBUTTON "&Add",IDC_ADD_CHEAT,306,6,66,14,WS_DISABLED
PUSHBUTTON "&Delete",IDC_DELETE_CHEAT,306,60,66,14,WS_DISABLED
PUSHBUTTON "&Update",IDC_UPDATE_CHEAT,306,24,66,14,WS_DISABLED
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140 changes: 94 additions & 46 deletions win32/wsnes9x.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8669,6 +8669,25 @@ int WinSearchCheatDatabase()
ListView_GetItem(GetDlgItem(hDlg, b), &a);
#define CHEAT_SIZE 1024

/* return a vector of all selected list items with their index in the listview
* as first element and their lparam as second element of a pair
*/
static std::vector<std::pair<int, int>> get_all_selected_listitems(HWND lView)
{
std::vector<std::pair<int, int>> result;
LVITEM lvitem = { 0 };
lvitem.mask = LVIF_PARAM;
int index = ListView_GetNextItem(lView, -1, LVNI_SELECTED);
do
{
lvitem.iItem = index;
ListView_GetItem(lView, &lvitem);
result.push_back(std::make_pair(index, (int)lvitem.lParam));
} while ((index = ListView_GetNextItem(lView, index, LVNI_SELECTED)) != -1);

return result;
}

INT_PTR CALLBACK DlgCheater(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
static bool internal_change;
Expand Down Expand Up @@ -8754,41 +8773,67 @@ INT_PTR CALLBACK DlgCheater(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(LOWORD(wParam))
{
case IDC_CHEAT_LIST:
if(0==ListView_GetSelectedCount(GetDlgItem(hDlg, IDC_CHEAT_LIST)))
{
EnableWindow(GetDlgItem(hDlg, IDC_DELETE_CHEAT), false);
EnableWindow(GetDlgItem(hDlg, IDC_UPDATE_CHEAT), false);
has_sel=false;
sel_idx=-1;
}
else
{
EnableWindow(GetDlgItem(hDlg, IDC_DELETE_CHEAT), true);
if(!has_sel||sel_idx!=ListView_GetSelectionMark(GetDlgItem(hDlg, IDC_CHEAT_LIST)))
{
new_sel=3;
//change
TCHAR buf[CHEAT_SIZE];
LV_ITEM lvi;

internal_change = true; // do not enable update button

/* Code */
ITEM_QUERY (lvi, IDC_CHEAT_LIST, 0, buf, CHEAT_SIZE);
SetDlgItemText(hDlg, IDC_CHEAT_CODE, lvi.pszText);

/* Description */
ITEM_QUERY(lvi, IDC_CHEAT_LIST, 1, buf, CHEAT_SIZE);
SetDlgItemText(hDlg, IDC_CHEAT_DESCRIPTION, lvi.pszText);
case IDC_CHEAT_LIST:
{
// react only to item changes (we are interested in selection or checkbox)
if (((LPNMHDR)lParam)->code == LVN_ITEMCHANGED)
{
NMLISTVIEW* listview_notify = (NMLISTVIEW*)lParam;
if (listview_notify->uChanged & LVIF_STATE)
{
HWND lView = GetDlgItem(hDlg, IDC_CHEAT_LIST);
int sel_count = ListView_GetSelectedCount(lView);
// selection change, update button states and selection tracking variable
if ((listview_notify->uOldState & LVIS_SELECTED) != (listview_notify->uNewState & LVIS_SELECTED))
{
if (0 == sel_count)
{
EnableWindow(GetDlgItem(hDlg, IDC_DELETE_CHEAT), false);
EnableWindow(GetDlgItem(hDlg, IDC_UPDATE_CHEAT), false);
has_sel = false;
sel_idx = -1;
}
else
{
EnableWindow(GetDlgItem(hDlg, IDC_DELETE_CHEAT), true);
if (!has_sel || sel_idx != ListView_GetSelectionMark(lView))
{
new_sel = 3;
//change
TCHAR buf[CHEAT_SIZE];
LV_ITEM lvi;

internal_change = true; // do not enable update button

/* Code */
ITEM_QUERY(lvi, IDC_CHEAT_LIST, 0, buf, CHEAT_SIZE);
SetDlgItemText(hDlg, IDC_CHEAT_CODE, lvi.pszText);

/* Description */
ITEM_QUERY(lvi, IDC_CHEAT_LIST, 1, buf, CHEAT_SIZE);
SetDlgItemText(hDlg, IDC_CHEAT_DESCRIPTION, lvi.pszText);

internal_change = false;
}
sel_idx = ListView_GetSelectionMark(lView);
has_sel = true;
}
}

internal_change = false;
}
sel_idx=ListView_GetSelectionMark(GetDlgItem(hDlg, IDC_CHEAT_LIST));
has_sel=true;
}
// multi-select and change of checkbox state - set same state to all selected items
if (sel_count > 1 && (listview_notify->uOldState & LVIS_STATEIMAGEMASK) != (listview_notify->uNewState & LVIS_STATEIMAGEMASK))
{
auto selected_items = get_all_selected_listitems(lView);
for (const auto &item : selected_items)
{
ListView_SetItemState(lView, item.first, listview_notify->uNewState, LVIS_STATEIMAGEMASK);
}
}

return true;
return true;
}
}
}
default: return false;
}
}
Expand Down Expand Up @@ -8904,20 +8949,22 @@ INT_PTR CALLBACK DlgCheater(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
break;
case IDC_DELETE_CHEAT:
{
LVITEM lvi;
// save index, deleting item removes selection
int old_sel = sel_idx;
HWND lView = GetDlgItem(hDlg, IDC_CHEAT_LIST);
auto deleted_items = get_all_selected_listitems(lView);

// we delete in reverse order so that our item indexes stay valid
std::reverse(deleted_items.begin(), deleted_items.end());
for (const auto &item : deleted_items)
{
// get index in internal cheat list, if present mark as deleted
if(item.second >= 0)
ct.state[item.second] = Deleted;
ListView_DeleteItem(lView, item.first);
}

// get index in internal cheat list, if present mark as deleted
memset(&lvi, 0, sizeof(LVITEM));
lvi.mask = LVIF_PARAM;
lvi.iItem = sel_idx;
ListView_GetItem(GetDlgItem(hDlg, IDC_CHEAT_LIST), &lvi);
if (lvi.lParam >= 0)
ct.state[lvi.lParam] = Deleted;

// save index, deleting item removes selection
int old_sel = sel_idx;
ListView_DeleteItem(GetDlgItem(hDlg, IDC_CHEAT_LIST), sel_idx);
ListView_SetItemState(GetDlgItem(hDlg, IDC_CHEAT_LIST), old_sel, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
ListView_SetItemState(lView, old_sel, LVIS_FOCUSED | LVIS_SELECTED, LVIS_FOCUSED | LVIS_SELECTED);
}

break;
Expand Down Expand Up @@ -9087,6 +9134,7 @@ INT_PTR CALLBACK DlgCheater(HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam)
return false;
}
}

default: return false;
}
}
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