/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. */ /** @file signs_gui.cpp The GUI for signs. */ #include "stdafx.h" #include "company_gui.h" #include "company_func.h" #include "signs_base.h" #include "signs_func.h" #include "debug.h" #include "command_func.h" #include "strings_func.h" #include "window_func.h" #include "map_func.h" #include "gfx_func.h" #include "viewport_func.h" #include "querystring_gui.h" #include "sortlist_type.h" #include "string_func.h" #include "core/geometry_func.hpp" #include "hotkeys.h" #include "table/strings.h" #include "table/sprites.h" /** * Contains the necessary information to decide if a sign should * be filtered out or not. This struct is sent as parameter to the * sort functions of the GUISignList. */ struct FilterInfo { const char *string; ///< String to match sign names against bool case_sensitive; ///< Should case sensitive matching be used? }; struct SignList { /** * A GUIList contains signs and uses a custom data structure called #FilterInfo for * passing data to the sort functions. */ typedef GUIList<const Sign *, FilterInfo> GUISignList; static const Sign *last_sign; GUISignList signs; char filter_string[MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH]; ///< The match string to be used when the GUIList is (re)-sorted. static bool match_case; ///< Should case sensitive matching be used? /** * Creates a SignList with filtering disabled by default. */ SignList() { filter_string[0] = '\0'; } void BuildSignsList() { if (!this->signs.NeedRebuild()) return; DEBUG(misc, 3, "Building sign list"); this->signs.Clear(); const Sign *si; FOR_ALL_SIGNS(si) *this->signs.Append() = si; this->FilterSignList(); this->signs.Compact(); this->signs.RebuildDone(); } /** Sort signs by their name */ static int CDECL SignNameSorter(const Sign * const *a, const Sign * const *b) { static char buf_cache[64]; char buf[64]; SetDParam(0, (*a)->index); GetString(buf, STR_SIGN_NAME, lastof(buf)); if (*b != last_sign) { last_sign = *b; SetDParam(0, (*b)->index); GetString(buf_cache, STR_SIGN_NAME, lastof(buf_cache)); } int r = strnatcmp(buf, buf_cache); // Sort by name (natural sorting). return r != 0 ? r : ((*a)->index - (*b)->index); } void SortSignsList() { if (!this->signs.Sort(&SignNameSorter)) return; /* Reset the name sorter sort cache */ this->last_sign = NULL; } /** Filter sign list by sign name (case sensitive setting in FilterInfo) */ static bool CDECL SignNameFilter(const Sign * const *a, FilterInfo filter_info) { /* Get sign string */ char buf1[MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH]; SetDParam(0, (*a)->index); GetString(buf1, STR_SIGN_NAME, lastof(buf1)); return (filter_info.case_sensitive ? strstr(buf1, filter_info.string) : strcasestr(buf1, filter_info.string)) != NULL; } /** Filter out signs from the sign list that does not match the name filter */ void FilterSignList() { FilterInfo filter_info = {this->filter_string, this->match_case}; this->signs.Filter(&SignNameFilter, filter_info); } }; const Sign *SignList::last_sign = NULL; bool SignList::match_case = false; /** Enum referring to the widgets in the sign list window */ enum SignListWidgets { SLW_CAPTION, SLW_LIST, SLW_SCROLLBAR, SLW_FILTER_TEXT, ///< Text box for typing a filter string SLW_FILTER_MATCH_CASE_BTN, ///< Button to toggle if case sensitive filtering should be used SLW_FILTER_CLEAR_BTN, ///< Button to clear the filter }; /** Enum referring to the Hotkeys in the sign list window */ enum SignListHotkeys { SLHK_FOCUS_FILTER_BOX, ///< Focus the edit box for editing the filter string }; struct SignListWindow : QueryStringBaseWindow, SignList { int text_offset; ///< Offset of the sign text relative to the left edge of the SLW_LIST widget. Scrollbar *vscroll; SignListWindow(const WindowDesc *desc, WindowNumber window_number) : QueryStringBaseWindow(MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH, MAX_LENGTH_SIGN_NAME_CHARS) { this->CreateNestedTree(desc); this->vscroll = this->GetScrollbar(SLW_SCROLLBAR); this->FinishInitNested(desc, window_number); this->SetWidgetLoweredState(SLW_FILTER_MATCH_CASE_BTN, SignList::match_case); /* Initialize the text edit widget */ this->afilter = CS_ALPHANUMERAL; InitializeTextBuffer(&this->text, this->edit_str_buf, MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH, MAX_LENGTH_SIGN_NAME_CHARS, MAX_LENGTH_SIGN_NAME_PIXELS); ClearFilterTextWidget(); /* Initialize the filtering variables */ this->SetFilterString(""); /* Create initial list. */ this->signs.ForceRebuild(); this->signs.ForceResort(); this->BuildSignsList(); this->SortSignsList(); this->vscroll->SetCount(this->signs.Length()); } /** * Empties the string buffer that is edited by the filter text edit widget. * It also triggers the redraw of the widget so it become visible that the string has been made empty. */ void ClearFilterTextWidget() { this->edit_str_buf[0] = '\0'; UpdateTextBufferSize(&this->text); this->SetWidgetDirty(SLW_FILTER_TEXT); } /** * This function sets the filter string of the sign list. The contents of * the edit widget is not updated by this function. Depending on if the * new string is zero-length or not the clear button is made * disabled/enabled. The sign list is updated according to the new filter. */ void SetFilterString(const char *new_filter_string) { /* check if there is a new filter string */ if (!StrEmpty(new_filter_string)) { /* Copy new filter string */ strecpy(this->filter_string, new_filter_string, lastof(this->filter_string)); this->signs.SetFilterState(true); this->EnableWidget(SLW_FILTER_CLEAR_BTN); } else { /* There is no new string -> clear this->filter_string */ this->filter_string[0] = '\0'; this->signs.SetFilterState(false); this->DisableWidget(SLW_FILTER_CLEAR_BTN); } /* Repaint the clear button since its disabled state may have changed */ this->SetWidgetDirty(SLW_FILTER_CLEAR_BTN); /* Rebuild the list of signs */ this->InvalidateData(); } virtual void OnPaint() { this->DrawWidgets(); if (!this->IsShaded()) this->DrawEditBox(SLW_FILTER_TEXT); } virtual void DrawWidget(const Rect &r, int widget) const { switch (widget) { case SLW_LIST: { uint y = r.top + WD_FRAMERECT_TOP; // Offset from top of widget. /* No signs? */ if (this->vscroll->GetCount() == 0) { DrawString(r.left + WD_FRAMETEXT_LEFT, r.right, y, STR_STATION_LIST_NONE); return; } bool rtl = _current_text_dir == TD_RTL; int sprite_offset_y = (FONT_HEIGHT_NORMAL - 10) / 2 + 1; uint icon_left = 4 + (rtl ? r.right - this->text_offset : r.left); uint text_left = r.left + (rtl ? WD_FRAMERECT_LEFT : this->text_offset); uint text_right = r.right - (rtl ? this->text_offset : WD_FRAMERECT_RIGHT); /* At least one sign available. */ for (uint16 i = this->vscroll->GetPosition(); this->vscroll->IsVisible(i) && i < this->vscroll->GetCount(); i++) { const Sign *si = this->signs[i]; if (si->owner != OWNER_NONE) DrawCompanyIcon(si->owner, icon_left, y + sprite_offset_y); SetDParam(0, si->index); DrawString(text_left, text_right, y, STR_SIGN_NAME, TC_YELLOW); y += this->resize.step_height; } break; } } } virtual void SetStringParameters(int widget) const { if (widget == SLW_CAPTION) SetDParam(0, this->vscroll->GetCount()); } virtual void OnClick(Point pt, int widget, int click_count) { switch (widget) { case SLW_LIST: { uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, SLW_LIST, WD_FRAMERECT_TOP); if (id_v == INT_MAX) return; const Sign *si = this->signs[id_v]; ScrollMainWindowToTile(TileVirtXY(si->x, si->y)); break; } case SLW_FILTER_CLEAR_BTN: this->ClearFilterTextWidget(); // Empty the text in the EditBox widget this->SetFilterString(""); // Use empty text as filter text (= view all signs) break; case SLW_FILTER_MATCH_CASE_BTN: SignList::match_case = !SignList::match_case; // Toggle match case this->SetWidgetLoweredState(SLW_FILTER_MATCH_CASE_BTN, SignList::match_case); // Toggle button pushed state this->InvalidateData(); // Rebuild the list of signs break; } } virtual void OnResize() { this->vscroll->SetCapacityFromWidget(this, SLW_LIST, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM); } virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) { switch (widget) { case SLW_LIST: { Dimension spr_dim = GetSpriteSize(SPR_COMPANY_ICON); this->text_offset = WD_FRAMETEXT_LEFT + spr_dim.width + 2; // 2 pixels space between icon and the sign text. resize->height = max<uint>(FONT_HEIGHT_NORMAL, GetSpriteSize(SPR_COMPANY_ICON).height); Dimension d = {this->text_offset + MAX_LENGTH_SIGN_NAME_PIXELS + WD_FRAMETEXT_RIGHT, WD_FRAMERECT_TOP + 5 * resize->height + WD_FRAMERECT_BOTTOM}; *size = maxdim(*size, d); break; } case SLW_CAPTION: SetDParam(0, max<size_t>(1000, Sign::GetPoolSize())); *size = GetStringBoundingBox(STR_SIGN_LIST_CAPTION); size->height += padding.height; size->width += padding.width; break; } } virtual EventState OnKeyPress(uint16 key, uint16 keycode) { EventState state = ES_NOT_HANDLED; switch (this->HandleEditBoxKey(SLW_FILTER_TEXT, key, keycode, state)) { case HEBR_EDITING: this->SetFilterString(this->text.buf); break; case HEBR_CONFIRM: // Enter pressed -> goto first sign in list if (this->signs.Length() >= 1) { const Sign *si = this->signs[0]; ScrollMainWindowToTile(TileVirtXY(si->x, si->y)); } return state; case HEBR_CANCEL: // ESC pressed, clear filter. this->OnClick(Point(), SLW_FILTER_CLEAR_BTN, 1); // Simulate click on clear button. this->UnfocusFocusedWidget(); // Unfocus the text box. return state; case HEBR_NOT_FOCUSED: // The filter text box is not globaly focused. if (CheckHotkeyMatch(signlist_hotkeys, keycode, this) == SLHK_FOCUS_FILTER_BOX) { this->SetFocusedWidget(SLW_FILTER_TEXT); SetFocusedWindow(this); // The user has asked to give focus to the text box, so make sure this window is focused. state = ES_HANDLED; } break; default: NOT_REACHED(); } if (state == ES_HANDLED) OnOSKInput(SLW_FILTER_TEXT); return state; } virtual void OnOSKInput(int widget) { if (widget == SLW_FILTER_TEXT) this->SetFilterString(this->text.buf); } virtual void OnMouseLoop() { this->HandleEditBox(SLW_FILTER_TEXT); } virtual void OnInvalidateData(int data) { /* When there is a filter string, we always need to rebuild the list even if * the amount of signs in total is unchanged, as the subset of signs that is * accepted by the filter might has changed. */ if (data == 0 || !StrEmpty(this->filter_string)) { // New or deleted sign, or there is a filter string this->signs.ForceRebuild(); this->BuildSignsList(); this->SetWidgetDirty(SLW_CAPTION); this->vscroll->SetCount(this->signs.Length()); } else { // Change of sign contents while there is no filter string this->signs.ForceResort(); } this->SortSignsList(); } static Hotkey<SignListWindow> signlist_hotkeys[]; }; Hotkey<SignListWindow> SignListWindow::signlist_hotkeys[] = { Hotkey<SignListWindow>('F', "focus_filter_box", SLHK_FOCUS_FILTER_BOX), HOTKEY_LIST_END(SignListWindow) }; Hotkey<SignListWindow> *_signlist_hotkeys = SignListWindow::signlist_hotkeys; static const NWidgetPart _nested_sign_list_widgets[] = { NWidget(NWID_HORIZONTAL), NWidget(WWT_CLOSEBOX, COLOUR_GREY), NWidget(WWT_CAPTION, COLOUR_GREY, SLW_CAPTION), SetDataTip(STR_SIGN_LIST_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), NWidget(WWT_SHADEBOX, COLOUR_GREY), NWidget(WWT_STICKYBOX, COLOUR_GREY), EndContainer(), NWidget(NWID_HORIZONTAL), NWidget(NWID_VERTICAL), NWidget(WWT_PANEL, COLOUR_GREY, SLW_LIST), SetMinimalSize(WD_FRAMETEXT_LEFT + 16 + MAX_LENGTH_SIGN_NAME_PIXELS + WD_FRAMETEXT_RIGHT, 50), SetResize(1, 10), SetFill(1, 0), SetScrollbar(SLW_SCROLLBAR), EndContainer(), NWidget(NWID_HORIZONTAL), NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 1), NWidget(WWT_EDITBOX, COLOUR_GREY, SLW_FILTER_TEXT), SetMinimalSize(80, 12), SetResize(1, 0), SetFill(1, 0), SetPadding(2, 2, 2, 2), SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP), EndContainer(), NWidget(WWT_TEXTBTN, COLOUR_GREY, SLW_FILTER_MATCH_CASE_BTN), SetDataTip(STR_SIGN_LIST_MATCH_CASE, STR_SIGN_LIST_MATCH_CASE_TOOLTIP), NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, SLW_FILTER_CLEAR_BTN), SetDataTip(STR_SIGN_LIST_CLEAR, STR_SIGN_LIST_CLEAR_TOOLTIP), EndContainer(), EndContainer(), NWidget(NWID_VERTICAL), NWidget(NWID_VERTICAL), SetFill(0, 1), NWidget(NWID_VSCROLLBAR, COLOUR_GREY, SLW_SCROLLBAR), EndContainer(), NWidget(WWT_RESIZEBOX, COLOUR_GREY), EndContainer(), EndContainer(), }; static const WindowDesc _sign_list_desc( WDP_AUTO, 358, 138, WC_SIGN_LIST, WC_NONE, WDF_UNCLICK_BUTTONS, _nested_sign_list_widgets, lengthof(_nested_sign_list_widgets) ); /** * Open the sign list window * * @return newly opened sign list window, or NULL if the window could not be opened. */ Window *ShowSignList() { return AllocateWindowDescFront<SignListWindow>(&_sign_list_desc, 0); } EventState SignListGlobalHotkeys(uint16 key, uint16 keycode) { int num = CheckHotkeyMatch<SignListWindow>(_signlist_hotkeys, keycode, NULL, true); if (num == -1) return ES_NOT_HANDLED; Window *w = ShowSignList(); if (w == NULL) return ES_NOT_HANDLED; return w->OnKeyPress(key, keycode); } /** * Actually rename the sign. * @param index the sign to rename. * @param text the new name. * @return true if the window will already be removed after returning. */ static bool RenameSign(SignID index, const char *text) { bool remove = StrEmpty(text); DoCommandP(0, index, 0, CMD_RENAME_SIGN | (StrEmpty(text) ? CMD_MSG(STR_ERROR_CAN_T_DELETE_SIGN) : CMD_MSG(STR_ERROR_CAN_T_CHANGE_SIGN_NAME)), NULL, text); return remove; } /** Widget numbers of the query sign edit window. */ enum QueryEditSignWidgets { QUERY_EDIT_SIGN_WIDGET_CAPTION, QUERY_EDIT_SIGN_WIDGET_TEXT, QUERY_EDIT_SIGN_WIDGET_OK, QUERY_EDIT_SIGN_WIDGET_CANCEL, QUERY_EDIT_SIGN_WIDGET_DELETE, QUERY_EDIT_SIGN_WIDGET_PREVIOUS, QUERY_EDIT_SIGN_WIDGET_NEXT, }; struct SignWindow : QueryStringBaseWindow, SignList { SignID cur_sign; SignWindow(const WindowDesc *desc, const Sign *si) : QueryStringBaseWindow(MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH, MAX_LENGTH_SIGN_NAME_CHARS) { this->caption = STR_EDIT_SIGN_CAPTION; this->afilter = CS_ALPHANUMERAL; this->InitNested(desc); this->LowerWidget(QUERY_EDIT_SIGN_WIDGET_TEXT); UpdateSignEditWindow(si); this->SetFocusedWidget(QUERY_EDIT_SIGN_WIDGET_TEXT); } void UpdateSignEditWindow(const Sign *si) { char *last_of = &this->edit_str_buf[this->edit_str_size - 1]; // points to terminating '\0' /* Display an empty string when the sign hasnt been edited yet */ if (si->name != NULL) { SetDParam(0, si->index); GetString(this->edit_str_buf, STR_SIGN_NAME, last_of); } else { GetString(this->edit_str_buf, STR_EMPTY, last_of); } *last_of = '\0'; this->cur_sign = si->index; InitializeTextBuffer(&this->text, this->edit_str_buf, this->edit_str_size, this->max_chars, MAX_LENGTH_SIGN_NAME_PIXELS); this->SetWidgetDirty(QUERY_EDIT_SIGN_WIDGET_TEXT); this->SetFocusedWidget(QUERY_EDIT_SIGN_WIDGET_TEXT); } /** * Returns a pointer to the (alphabetically) previous or next sign of the current sign. * @param next false if the previous sign is wanted, true if the next sign is wanted * @return pointer to the previous/next sign */ const Sign *PrevNextSign(bool next) { /* Rebuild the sign list */ this->signs.ForceRebuild(); this->signs.NeedResort(); this->BuildSignsList(); this->SortSignsList(); /* Search through the list for the current sign, excluding * - the first sign if we want the previous sign or * - the last sign if we want the next sign */ uint end = this->signs.Length() - (next ? 1 : 0); for (uint i = next ? 0 : 1; i < end; i++) { if (this->cur_sign == this->signs[i]->index) { /* We've found the current sign, so return the sign before/after it */ return this->signs[i + (next ? 1 : -1)]; } } /* If we haven't found the current sign by now, return the last/first sign */ return this->signs[next ? 0 : this->signs.Length() - 1]; } virtual void SetStringParameters(int widget) const { switch (widget) { case QUERY_EDIT_SIGN_WIDGET_CAPTION: SetDParam(0, this->caption); break; } } virtual void OnPaint() { this->DrawWidgets(); if (!this->IsShaded()) this->DrawEditBox(QUERY_EDIT_SIGN_WIDGET_TEXT); } virtual void OnClick(Point pt, int widget, int click_count) { switch (widget) { case QUERY_EDIT_SIGN_WIDGET_PREVIOUS: case QUERY_EDIT_SIGN_WIDGET_NEXT: { const Sign *si = this->PrevNextSign(widget == QUERY_EDIT_SIGN_WIDGET_NEXT); /* Rebuild the sign list */ this->signs.ForceRebuild(); this->signs.NeedResort(); this->BuildSignsList(); this->SortSignsList(); /* Scroll to sign and reopen window */ ScrollMainWindowToTile(TileVirtXY(si->x, si->y)); UpdateSignEditWindow(si); break; } case QUERY_EDIT_SIGN_WIDGET_DELETE: /* Only need to set the buffer to null, the rest is handled as the OK button */ RenameSign(this->cur_sign, ""); /* don't delete this, we are deleted in Sign::~Sign() -> DeleteRenameSignWindow() */ break; case QUERY_EDIT_SIGN_WIDGET_OK: if (RenameSign(this->cur_sign, this->text.buf)) break; /* FALL THROUGH */ case QUERY_EDIT_SIGN_WIDGET_CANCEL: delete this; break; } } virtual EventState OnKeyPress(uint16 key, uint16 keycode) { EventState state = ES_NOT_HANDLED; switch (this->HandleEditBoxKey(QUERY_EDIT_SIGN_WIDGET_TEXT, key, keycode, state)) { default: break; case HEBR_CONFIRM: if (RenameSign(this->cur_sign, this->text.buf)) break; /* FALL THROUGH */ case HEBR_CANCEL: // close window, abandon changes delete this; break; } return state; } virtual void OnMouseLoop() { this->HandleEditBox(QUERY_EDIT_SIGN_WIDGET_TEXT); } virtual void OnOpenOSKWindow(int wid) { ShowOnScreenKeyboard(this, wid, QUERY_EDIT_SIGN_WIDGET_CANCEL, QUERY_EDIT_SIGN_WIDGET_OK); } }; static const NWidgetPart _nested_query_sign_edit_widgets[] = { NWidget(NWID_HORIZONTAL), NWidget(WWT_CLOSEBOX, COLOUR_GREY), NWidget(WWT_CAPTION, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_CAPTION), SetDataTip(STR_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), EndContainer(), NWidget(WWT_PANEL, COLOUR_GREY), NWidget(WWT_EDITBOX, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_TEXT), SetMinimalSize(256, 12), SetDataTip(STR_EDIT_SIGN_SIGN_OSKTITLE, STR_NULL), SetPadding(2, 2, 2, 2), EndContainer(), NWidget(NWID_HORIZONTAL), NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_OK), SetMinimalSize(61, 12), SetDataTip(STR_BUTTON_OK, STR_NULL), NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_CANCEL), SetMinimalSize(60, 12), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_DELETE), SetMinimalSize(60, 12), SetDataTip(STR_TOWN_VIEW_DELETE_BUTTON, STR_NULL), NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 1), EndContainer(), NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_PREVIOUS), SetMinimalSize(11, 12), SetDataTip(AWV_DECREASE, STR_EDIT_SIGN_PREVIOUS_SIGN_TOOLTIP), NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, QUERY_EDIT_SIGN_WIDGET_NEXT), SetMinimalSize(11, 12), SetDataTip(AWV_INCREASE, STR_EDIT_SIGN_NEXT_SIGN_TOOLTIP), EndContainer(), }; static const WindowDesc _query_sign_edit_desc( WDP_AUTO, 0, 0, WC_QUERY_STRING, WC_NONE, WDF_CONSTRUCTION | WDF_UNCLICK_BUTTONS, _nested_query_sign_edit_widgets, lengthof(_nested_query_sign_edit_widgets) ); void HandleClickOnSign(const Sign *si) { if (_ctrl_pressed && si->owner == _local_company) { RenameSign(si->index, NULL); return; } ShowRenameSignWindow(si); } void ShowRenameSignWindow(const Sign *si) { /* Delete all other edit windows */ DeleteWindowById(WC_QUERY_STRING, 0); new SignWindow(&_query_sign_edit_desc, si); } void DeleteRenameSignWindow(SignID sign) { SignWindow *w = dynamic_cast<SignWindow *>(FindWindowById(WC_QUERY_STRING, 0)); if (w != NULL && w->cur_sign == sign) delete w; }