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Windows: reorganise menu ids.

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A user pointed out today that IDM_PREFS overlaps the second preset,
because I forgot that IDM_PRESETS was not a single id but the base for
an open-ended series.

Looking more closely, there are several other problems with the IDM_*
constants. IDM_GAMES (used in COMBINED mode) shouldn't be at an
arbitrary distance _above_ IDM_PRESETS, because that risks a
collision; instead, the games' and presets' ids should interleave.
Also, the ids above IDM_GAMES were going up in steps of 1, which
should have been 0x10, for the usual reason that the bottom four bits
of the id aren't guaranteed. And IDM_KEYEMUL was completely unused (I
suspect it was part of the discarded WinCE support).

Now the #defines that are the bases of series are labelled as
IDM_FOO_BASE; they interleave as they should; and there's a clear
comment.
This commit is contained in:
Simon Tatham
2023-05-03 12:57:27 +01:00
parent 89e9026ee4
commit 63346a8cea
1 changed files with 28 additions and 15 deletions
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43
windows.c
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@ -35,11 +35,14 @@
#define IDM_SAVE 0x00E0
#define IDM_LOAD 0x00F0
#define IDM_PRINT 0x0100
#define IDM_PRESETS 0x0110
#define IDM_PREFS 0x0120
#define IDM_GAMES 0x0300
#define IDM_PREFS 0x0110
#define IDM_KEYEMUL 0x0400
/* Menu items for preset game_params go up from IDM_PRESET_BASE in
* steps of MENUITEM_STEP = 0x20. Menu items for selecting different
* games (in -DCOMBINED mode) go up from IDM_GAME_BASE similarly. */
#define IDM_PRESET_BASE 0x0120
#define IDM_GAME_BASE 0x0130
#define MENUITEM_STEP 0x0020
#define HELP_FILE_NAME "puzzles.hlp"
#define HELP_CNT_NAME "puzzles.cnt"
@ -1540,7 +1543,8 @@ static void populate_preset_menu(frontend *fe,
UINT flags = MF_ENABLED;
if (entry->params) {
id_or_sub = (UINT_PTR)(IDM_PRESETS + 0x10 * entry->id);
id_or_sub = (UINT_PTR)(
IDM_PRESET_BASE + MENUITEM_STEP * entry->id);
fe->preset_menuitems[entry->id].which_menu = winmenu;
fe->preset_menuitems[entry->id].item_index =
@ -1702,7 +1706,9 @@ static int fe_set_midend(frontend *fe, midend *me)
if (strcmp(gamelist[i]->name, fe->game->name) != 0) {
/* only include those games that aren't the same as the
* game we're currently playing. */
AppendMenu(games, MF_ENABLED, IDM_GAMES + i, gamelist[i]->name);
AppendMenu(games, MF_ENABLED,
IDM_GAME_BASE + MENUITEM_STEP * i,
gamelist[i]->name);
}
}
}
@ -2863,27 +2869,34 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
start_help(fe, help_type == CHM ?
fe->game->htmlhelp_topic : fe->game->winhelp_topic);
break;
default:
default: {
unsigned n;
#ifdef COMBINED
if (wParam >= IDM_GAMES && wParam < (IDM_GAMES + (WPARAM)gamecount)) {
int p = wParam - IDM_GAMES;
n = (wParam - IDM_GAME_BASE) / MENUITEM_STEP;
if (n < gamecount && wParam == IDM_GAME_BASE + MENUITEM_STEP * n) {
char *error = NULL;
fe_set_midend(fe, midend_for_new_game(fe, gamelist[p], NULL,
fe_set_midend(fe, midend_for_new_game(fe, gamelist[n], NULL,
false, false, &error));
sfree(error);
} else
break;
}
#endif
{
n = (wParam - IDM_PRESET_BASE) / MENUITEM_STEP;
if (wParam == IDM_PRESET_BASE + MENUITEM_STEP * n) {
game_params *preset = preset_menu_lookup_by_id(
fe->preset_menu,
((wParam &~ 0xF) - IDM_PRESETS) / 0x10);
fe->preset_menu, n);
if (preset) {
midend_set_params(fe->me, preset);
new_game_type(fe);
break;
}
}
break;
break;
}
}
break;
case WM_DESTROY: