C++ wstrdup函数代码示例

/* upon fully deducing one particular menu entry, parsers call back to this
 * function to have said menu entry added to the wm menu. initializes wm menu
 * with a root element if needed.
 */
static void addWMMenuEntryCallback(WMMenuEntry *aEntry)
{
	WMMenuEntry *wm;
	WMTreeNode *at;

	wm = (WMMenuEntry *)wmalloc(sizeof(WMMenuEntry));	/* this entry */
	at = (WMTreeNode *)NULL;				/* will be a child of this entry */

	if (!menu) {
		WMMenuEntry *root;

		root = (WMMenuEntry *)wmalloc(sizeof(WMMenuEntry));
		root->Name = "Applications";
		root->CmdLine = NULL;
		root->SubMenu = NULL;
		root->Flags = 0;
		menu = WMCreateTreeNode(root);
	}

	if (aEntry->SubMenu)
		at = findPositionInMenu(aEntry->SubMenu);

	if (!at)
		at = menu;

	wm->Flags = aEntry->Flags;
	wm->Name = wstrdup(aEntry->Name);
	wm->CmdLine = wstrdup(aEntry->CmdLine);
	wm->SubMenu = NULL;
	WMAddItemToTree(at, wm);

}

/* coerce an xdg entry type into a wm entry type
 */
static Bool xdg_to_wm(XDGMenuEntry **xdg, WMMenuEntry **wm)
{
	char *p;

	/* Exec or TryExec is mandatory */
	if (!((*xdg)->Exec || (*xdg)->TryExec))
		return False;

	/* if there's no Name, use the first word of Exec or TryExec
	 */
	if ((*xdg)->Name) {
		(*wm)->Name = (*xdg)->Name;
	} else  {
		if ((*xdg)->Exec)
			(*wm)->Name = wstrdup((*xdg)->Exec);
		else /* (*xdg)->TryExec */
			(*wm)->Name = wstrdup((*xdg)->TryExec);

		p = strchr((*wm)->Name, ' ');
		if (p)
			*p = '\0';
	}

	if ((*xdg)->Exec)
		(*wm)->CmdLine = (*xdg)->Exec;
	else					/* (*xdg)->TryExec */
		(*wm)->CmdLine = (*xdg)->TryExec;

	(*wm)->SubMenu = (*xdg)->Category;
	(*wm)->Flags = (*xdg)->Flags;

	return True;
}

char *wgethomedir()
{
	static char *home = NULL;
	char *tmp;
	struct passwd *user;

	if (home)
		return home;

#ifdef HAVE_SECURE_GETENV
	tmp = secure_getenv("HOME");
#else
	tmp = getenv("HOME");
#endif
	if (tmp) {
		home = wstrdup(tmp);
		return home;
	}

	user = getpwuid(getuid());
	if (!user) {
		werror(_("could not get password entry for UID %i"), getuid());
		home = "/";
		return home;
	}

	if (!user->pw_dir)
		home = "/";
	else
		home = wstrdup(user->pw_dir);

	return home;
}

/* get the (first) xdg main category from a list of categories
 */
static void  getMenuHierarchyFor(char **xdgmenuspec)
{
	char *category, *p;
	char buf[1024];

	if (!*xdgmenuspec || !**xdgmenuspec)
		return;

	category = wstrdup(*xdgmenuspec);
	wfree(*xdgmenuspec);
	memset(buf, 0, sizeof(buf));

	p = strtok(category, ";");
	while (p) {		/* get a known category */
		if (strcmp(p, "AudioVideo") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Audio & Video"));
			break;
		} else if (strcmp(p, "Audio") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Audio"));
			break;
		} else if (strcmp(p, "Video") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Video"));
			break;
		} else if (strcmp(p, "Development") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Development"));
			break;
		} else if (strcmp(p, "Education") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Education"));
			break;
		} else if (strcmp(p, "Game") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Game"));
			break;
		} else if (strcmp(p, "Graphics") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Graphics"));
			break;
		} else if (strcmp(p, "Network") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Network"));
			break;
		} else if (strcmp(p, "Office") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Office"));
			break;
		} else if (strcmp(p, "Settings") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Settings"));
			break;
		} else if (strcmp(p, "System") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("System"));
			break;
		} else if (strcmp(p, "Utility") == 0) {
			snprintf(buf, sizeof(buf), "%s", _("Utility"));
			break;
		}
		p = strtok(NULL, ";");
	}


	if (!*buf)		/* come up with something if nothing found */
		snprintf(buf, sizeof(buf), "%s", _("Applications"));

	*xdgmenuspec = wstrdup(buf);
}

/* XFetchName Wrapper */
Bool wFetchName(Display *dpy, Window win, char **winname)
{
	XTextProperty text_prop;
	char **list;
	int num;

	if (XGetWMName(dpy, win, &text_prop)) {
		if (text_prop.value && text_prop.nitems > 0) {
			if (text_prop.encoding == XA_STRING) {
				*winname = wstrdup((char *)text_prop.value);
				XFree(text_prop.value);
			} else {
				text_prop.nitems = strlen((char *)text_prop.value);
				if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
				    Success && num > 0 && *list) {
					XFree(text_prop.value);
					*winname = wstrdup(*list);
					XFreeStringList(list);
				} else {
					*winname = wstrdup((char *)text_prop.value);
					XFree(text_prop.value);
				}
			}
		} else {
			/* the title is set, but it was set to none */
			*winname = wstrdup("");
		}
		return True;
	} else {
		/* the hint is probably not set */
		*winname = NULL;

		return False;
	}
}

/*--------------------------------------
 * Function: createWindow(title, width, height)
 *------------------------------------*/
static void createWindow(const string* title, int width, int height) {
    RECT window_rect = { 0 };

    window_rect.right  = width;
    window_rect.bottom = height;

    AdjustWindowRectEx(&window_rect, WindowStyle, FALSE, WindowStyleEx);

    int window_width  = window_rect.right  - window_rect.left;
    int window_height = window_rect.bottom - window_rect.top;

    registerWindowClass();

    window = malloc(sizeof(windowT));

    wchar_t* class_name  = wstrdup(ClassName);
    wchar_t* window_name = wstrdup(title);

    window->hwnd = CreateWindowExW(WindowStyleEx,
                                   class_name,
                                   window_name,
                                   WindowStyle,
                                   CW_USEDEFAULT,
                                   CW_USEDEFAULT,
                                   window_width,
                                   window_height,
                                   HWND_DESKTOP,
                                   NULL,
                                   GetModuleHandleW(NULL),
                                   NULL);

    free(class_name);
    free(window_name);

    assert(window->hwnd != NULL);

    RECT desktop_rect;
    GetClientRect(GetDesktopWindow(), &desktop_rect);

    MoveWindow(window->hwnd,
               (desktop_rect.right  - desktop_rect.left - window_width ) / 2,
               (desktop_rect.bottom - desktop_rect.top  - window_height) / 2,
               window_width,
               window_height,
               FALSE);

    ShowWindow(window->hwnd, SW_SHOW);

    window->hdc = GetDC(window->hwnd);

    //assert(window->hdc != NULL);

    window->width  = width;
    window->height = height;
}

/* normalize and convert one wmconfig-format entry to wm format */
static Bool wmc_to_wm(WMConfigMenuEntry **wmc, WMMenuEntry **wm)
{
	char *p;
	size_t slen;

	/* only Exec is mandatory, and it's better exist in a known place */
	if (!((*wmc)->Exec &&
	     *(*wmc)->Exec &&
	     fileInPath((*wmc)->Exec)))
		return False;

	/* normalize Exec: wmconfig tends to stick an ampersand
	 * at the end of everything, which we don't need */
	slen = strlen((*wmc)->Exec) - 1;
	p = (*wmc)->Exec;
	while (slen > 0 && (isspace(*(p + slen)) || *(p + slen) == '&'))
		*(p + slen--) = '\0';

	/* if there's no Name, use the first word of Exec; still better
	 * than nothing. i realize it's highly arguable whether `xterm' from
	 * `xterm -e "ssh dev push-to-prod"' is helpful or not, but since
	 * the alternative is to completely lose the entry, i opt for this.
	 * you could just fix the descriptor file to have a label <G> */
	if (!(*wmc)->Name) {
		(*wmc)->Name = wstrdup((*wmc)->Exec);
		p = strchr((*wmc)->Name, ' ');
		if (p)
			*p = '\0';
	}

	/* if there's no Category, use "Applications"; apparently "no category"
	 * can manifest both as no `group' descriptor at all, or a group
	 * descriptor of "" */
	if (!(*wmc)->Category || !*(*wmc)->Category)
		(*wmc)->Category = wstrdup("Applications");

	/* the `restart' type is used for restart, restart other
	 * wm and quit current wm too. separate these cases. */
	if ((*wmc)->Restart) {
		if (strcmp((*wmc)->Restart, "restart") == 0)
			(*wmc)->Flags |= F_RESTART_SELF;
		else if (strcmp((*wmc)->Restart, "quit") == 0)
			(*wmc)->Flags |= F_QUIT;
		else
			(*wmc)->Flags |= F_RESTART_OTHER;
	}

	(*wm)->Name = (*wmc)->Name;
	(*wm)->CmdLine = (*wmc)->Exec;
	(*wm)->SubMenu = (*wmc)->Category;
	(*wm)->Flags = (*wmc)->Flags;

	return True;
}

char *GetShortcutString(const char *shortcut)
{
	char *buffer = NULL;
	char *k;
	int control = 0;
	char *tmp, *text;

	tmp = text = wstrdup(shortcut);

	/* get modifiers */
	while ((k = strchr(text, '+')) != NULL) {
		int mod;

		*k = 0;
		mod = wXModifierFromKey(text);
		if (mod < 0) {
			return wstrdup("bug");
		}

		if (strcasecmp(text, "Meta") == 0) {
			buffer = wstrappend(buffer, "M+");
		} else if (strcasecmp(text, "Alt") == 0) {
			buffer = wstrappend(buffer, "A+");
		} else if (strcasecmp(text, "Shift") == 0) {
			buffer = wstrappend(buffer, "Sh+");
		} else if (strcasecmp(text, "Mod1") == 0) {
			buffer = wstrappend(buffer, "M1+");
		} else if (strcasecmp(text, "Mod2") == 0) {
			buffer = wstrappend(buffer, "M2+");
		} else if (strcasecmp(text, "Mod3") == 0) {
			buffer = wstrappend(buffer, "M3+");
		} else if (strcasecmp(text, "Mod4") == 0) {
			buffer = wstrappend(buffer, "M4+");
		} else if (strcasecmp(text, "Mod5") == 0) {
			buffer = wstrappend(buffer, "M5+");
		} else if (strcasecmp(text, "Control") == 0) {
			control = 1;
		} else {
			buffer = wstrappend(buffer, text);
		}
		text = k + 1;
	}

	if (control) {
		buffer = wstrappend(buffer, "^");
	}
	buffer = wstrappend(buffer, text);
	wfree(tmp);

	return buffer;
}

Panel *InitMouseSettings(WMWidget *parent)
{
	_Panel *panel;

	modifierNames[0] = wstrdup(_("Shift"));
	modifierNames[1] = wstrdup(_("Lock"));
	modifierNames[2] = wstrdup(_("Control"));
	modifierNames[3] = wstrdup(_("Mod1"));
	modifierNames[4] = wstrdup(_("Mod2"));
	modifierNames[5] = wstrdup(_("Mod3"));
	modifierNames[6] = wstrdup(_("Mod4"));
	modifierNames[7] = wstrdup(_("Mod5"));

	panel = wmalloc(sizeof(_Panel));

	panel->sectionName = _("Mouse Preferences");

	panel->description = _("Mouse speed/acceleration, double click delay,\n" "mouse button bindings etc.");

	panel->parent = parent;

	panel->callbacks.createWidgets = createPanel;
	panel->callbacks.updateDomain = storeData;

	AddSection(panel, ICON_FILE);

	return panel;
}

static void storeData(_Panel * panel)
{
	char buffer[64];
	int i;
	char *tmp, *p;
	WMUserDefaults *udb = WMGetStandardUserDefaults();

	if (!WMGetUDBoolForKey(udb, "NoXSetStuff")) {
		tmp = WMGetTextFieldText(panel->threT);
		if (strlen(tmp) == 0) {
			wfree(tmp);
			tmp = wstrdup("4");
		}

		sprintf(buffer, XSET " m %i/%i %s\n", (int)(panel->acceleration * 10), 10, tmp);
		storeCommandInScript(XSET " m", buffer);

		wfree(tmp);
	}

	tmp = WMGetTextFieldText(panel->ddelaT);
	if (sscanf(tmp, "%i", &i) == 1 && i > 0)
		SetIntegerForKey(i, "DoubleClickTime");
	wfree(tmp);

	SetBoolForKey(WMGetButtonSelected(panel->disaB), "DisableWSMouseActions");

	for (i = 0; i < wlengthof(button_list); i++) {
		const char *db_value;
		int action;

		action = WMGetPopUpButtonSelectedItem(panel->mouse_action[i].popup);
		if (button_list[i].type == T_BUTTON)
			db_value = button_actions[action].db_value;
		else
			db_value = wheel_actions[action].db_value;
		SetStringForKey(db_value, button_list[i].db_key);
	}

	tmp = WMGetPopUpButtonItem(panel->grabP, WMGetPopUpButtonSelectedItem(panel->grabP));
	tmp = wstrdup(tmp);
	p = strchr(tmp, ' ');
	if (p != NULL)
		*p = '\0';

	SetStringForKey(tmp, "ModifierKey");

	wfree(tmp);
}

void
install(wchar_t *nam, wchar_t *val, int mode)
{
	struct nlist *np;
	wchar_t	*cp;
	int		l;

	if (mode == PUSH)
		(void) lookup(nam);	/* lookup sets hshval */
	else
		while (undef(nam))	/* undef calls lookup */
			;

	np = xcalloc(1, sizeof (*np));
	np->name = wstrdup(nam);
	np->next = hshtab[hshval];
	hshtab[hshval] = np;

	cp = xcalloc((l = wcslen(val))+1, sizeof (*val));
	np->def = cp;
	cp = &cp[l];

	while (*val)
		*--cp = *val++;
}

void WMSetMenuItemShortcut(WMMenuItem * item, const char *shortcut)
{
	if (item->shortcutKey)
		wfree(item->shortcutKey);

	item->shortcutKey = wstrdup(shortcut);
}

static Dict *install(char *name, uint versions, uint model, 
                     Parser *parser, CheckAttribs *chkattrs)
{
    Dict *np;
    unsigned hashval;

    if ((np = lookup(name)) == null)
    {
        np = (Dict *)MemAlloc(sizeof(*np));

        if (np == null || (np->name = wstrdup(name)) == null)
            return null;

        hashval = hash(name);
        np->next = hashtab[hashval];
        np->model = 0;
        hashtab[hashval] = np;
    }

    np->versions = versions;
    np->model |= model;
    np->parser = parser;
    np->chkattrs = chkattrs;
    return np;
}

static void browseForFile(WMWidget * self, void *clientData)
{
	_Panel *panel = (_Panel *) clientData;
	WMFilePanel *filePanel;
	char *text, *oldprog, *newprog;

	filePanel = WMGetOpenPanel(WMWidgetScreen(self));
	text = WMGetTextFieldText(panel->commandT);

	oldprog = wtrimspace(text);
	wfree(text);

	if (oldprog[0] == 0 || oldprog[0] != '/') {
		wfree(oldprog);
		oldprog = wstrdup("/");
	} else {
		char *ptr = oldprog;
		while (*ptr && !isspace(*ptr))
			ptr++;
		*ptr = 0;
	}

	WMSetFilePanelCanChooseDirectories(filePanel, False);

	if (WMRunModalFilePanelForDirectory(filePanel, panel->parent, oldprog, _("Select Program"), NULL) == True) {
		newprog = WMGetFilePanelFileName(filePanel);
		WMSetTextFieldText(panel->commandT, newprog);
		updateMenuItem(panel, panel->currentItem, panel->commandT);
		wfree(newprog);
	}

	wfree(oldprog);
}

/*--------------------------------------
 * Function: registerWindowClass()
 *------------------------------------*/
static void registerWindowClass(void) {
    WNDCLASSEXW wcx = { 0 };

    wchar_t* class_name = wstrdup(ClassName);

    wcx.cbSize        = sizeof(WNDCLASSEXW);
    wcx.style         = CS_HREDRAW | CS_VREDRAW;
    wcx.lpfnWndProc   = WindowProc;
    wcx.cbClsExtra    = 0;
    wcx.cbWndExtra    = 0;
    wcx.hInstance     = GetModuleHandleW(NULL);
    wcx.hIcon         = LoadIconW(NULL, IDI_APPLICATION);
    wcx.hCursor       = LoadCursorW(NULL, IDC_ARROW);
    wcx.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcx.lpszMenuName  = NULL;
    wcx.lpszClassName = class_name;
    wcx.hIconSm       = NULL;

    if (!RegisterClassExW(&wcx)) {
        free(class_name);
        error("could not register window class");
    }

    free(class_name);
}