diff options
Diffstat (limited to 'tk8.6/generic/ttk/ttkWidget.c')
| -rw-r--r-- | tk8.6/generic/ttk/ttkWidget.c | 791 |
1 files changed, 791 insertions, 0 deletions
diff --git a/tk8.6/generic/ttk/ttkWidget.c b/tk8.6/generic/ttk/ttkWidget.c new file mode 100644 index 0000000..c50efc5 --- /dev/null +++ b/tk8.6/generic/ttk/ttkWidget.c @@ -0,0 +1,791 @@ +/* + * Copyright (c) 2003, Joe English + * + * Core widget utilities. + */ + +#include <string.h> +#include <tk.h> +#include "ttkTheme.h" +#include "ttkWidget.h" + +#ifdef MAC_OSX_TK +#define TK_NO_DOUBLE_BUFFERING 1 +#endif + +/*------------------------------------------------------------------------ + * +++ Internal helper routines. + */ + +/* UpdateLayout -- + * Call the widget's get-layout hook to recompute corePtr->layout. + * Returns TCL_OK if successful, returns TCL_ERROR and leaves + * the layout unchanged otherwise. + */ +static int UpdateLayout(Tcl_Interp *interp, WidgetCore *corePtr) +{ + Ttk_Theme themePtr = Ttk_GetCurrentTheme(interp); + Ttk_Layout newLayout = + corePtr->widgetSpec->getLayoutProc(interp, themePtr,corePtr); + + if (newLayout) { + if (corePtr->layout) { + Ttk_FreeLayout(corePtr->layout); + } + corePtr->layout = newLayout; + return TCL_OK; + } + return TCL_ERROR; +} + +/* SizeChanged -- + * Call the widget's sizeProc to compute new requested size + * and pass it to the geometry manager. + */ +static void SizeChanged(WidgetCore *corePtr) +{ + int reqWidth = 1, reqHeight = 1; + + if (corePtr->widgetSpec->sizeProc(corePtr,&reqWidth,&reqHeight)) { + Tk_GeometryRequest(corePtr->tkwin, reqWidth, reqHeight); + } +} + +#ifndef TK_NO_DOUBLE_BUFFERING + +/* BeginDrawing -- + * Returns a Drawable for drawing the widget contents. + * This is normally an off-screen Pixmap, copied to + * the window by EndDrawing(). + */ +static Drawable BeginDrawing(Tk_Window tkwin) +{ + return Tk_GetPixmap(Tk_Display(tkwin), Tk_WindowId(tkwin), + Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin)); +} + +/* EndDrawing -- + * Copy the drawable contents to the screen and release resources. + */ +static void EndDrawing(Tk_Window tkwin, Drawable d) +{ + XGCValues gcValues; + GC gc; + + gcValues.function = GXcopy; + gcValues.graphics_exposures = False; + gc = Tk_GetGC(tkwin, GCFunction|GCGraphicsExposures, &gcValues); + + XCopyArea(Tk_Display(tkwin), d, Tk_WindowId(tkwin), gc, + 0, 0, (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin), + 0, 0); + + Tk_FreePixmap(Tk_Display(tkwin), d); + Tk_FreeGC(Tk_Display(tkwin), gc); +} +#else +/* No double-buffering: draw directly into the window. */ +static Drawable BeginDrawing(Tk_Window tkwin) { return Tk_WindowId(tkwin); } +static void EndDrawing(Tk_Window tkwin, Drawable d) { } +#endif + +/* DrawWidget -- + * Redraw a widget. Called as an idle handler. + */ +static void DrawWidget(ClientData recordPtr) +{ + WidgetCore *corePtr = recordPtr; + + corePtr->flags &= ~REDISPLAY_PENDING; + if (Tk_IsMapped(corePtr->tkwin)) { + Drawable d = BeginDrawing(corePtr->tkwin); + corePtr->widgetSpec->layoutProc(recordPtr); + corePtr->widgetSpec->displayProc(recordPtr, d); + EndDrawing(corePtr->tkwin, d); + } +} + +/* TtkRedisplayWidget -- + * Schedule redisplay as an idle handler. + */ +void TtkRedisplayWidget(WidgetCore *corePtr) +{ + if (corePtr->flags & WIDGET_DESTROYED) { + return; + } + + if (!(corePtr->flags & REDISPLAY_PENDING)) { + Tcl_DoWhenIdle(DrawWidget, corePtr); + corePtr->flags |= REDISPLAY_PENDING; + } +} + +/* TtkResizeWidget -- + * Recompute widget size, schedule geometry propagation and redisplay. + */ +void TtkResizeWidget(WidgetCore *corePtr) +{ + if (corePtr->flags & WIDGET_DESTROYED) { + return; + } + + SizeChanged(corePtr); + TtkRedisplayWidget(corePtr); +} + +/* TtkWidgetChangeState -- + * Set / clear the specified bits in the 'state' flag, + */ +void TtkWidgetChangeState(WidgetCore *corePtr, + unsigned int setBits, unsigned int clearBits) +{ + Ttk_State oldState = corePtr->state; + corePtr->state = (oldState & ~clearBits) | setBits; + if (corePtr->state ^ oldState) { + TtkRedisplayWidget(corePtr); + } +} + +/* WidgetInstanceObjCmd -- + * Widget instance command implementation. + */ +static int +WidgetInstanceObjCmd( + ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = clientData; + const Ttk_Ensemble *commands = corePtr->widgetSpec->commands; + int status; + + Tcl_Preserve(clientData); + status = Ttk_InvokeEnsemble(commands,1, clientData,interp,objc,objv); + Tcl_Release(clientData); + + return status; +} + +/*------------------------------------------------------------------------ + * +++ Widget destruction. + * + * A widget can be destroyed when the application explicitly + * destroys the window or one of its ancestors via [destroy] + * or Tk_DestroyWindow(); when the application deletes the widget + * instance command; when there is an error in the widget constructor; + * or when another application calls XDestroyWindow on the window ID. + * + * The window receives a <DestroyNotify> event in all cases, + * so we do the bulk of the cleanup there. See [#2207435] for + * further notes (esp. re: Tk_FreeConfigOptions). + * + * Widget code that reenters the interp should only do so + * when the widtget is Tcl_Preserve()d, and should check + * the WIDGET_DESTROYED flag bit upon return. + */ + +/* WidgetInstanceObjCmdDeleted -- + * Widget instance command deletion callback. + */ +static void +WidgetInstanceObjCmdDeleted(ClientData clientData) +{ + WidgetCore *corePtr = clientData; + corePtr->widgetCmd = NULL; + if (corePtr->tkwin != NULL) + Tk_DestroyWindow(corePtr->tkwin); +} + +/* FreeWidget -- + * Final cleanup for widget; called via Tcl_EventuallyFree(). + */ +static void +FreeWidget(void *memPtr) +{ + ckfree(memPtr); +} + +/* DestroyWidget -- + * Main widget destructor; called from <DestroyNotify> event handler. + */ +static void +DestroyWidget(WidgetCore *corePtr) +{ + corePtr->flags |= WIDGET_DESTROYED; + + corePtr->widgetSpec->cleanupProc(corePtr); + + Tk_FreeConfigOptions( + (ClientData)corePtr, corePtr->optionTable, corePtr->tkwin); + + if (corePtr->layout) { + Ttk_FreeLayout(corePtr->layout); + } + + if (corePtr->flags & REDISPLAY_PENDING) { + Tcl_CancelIdleCall(DrawWidget, corePtr); + } + + corePtr->tkwin = NULL; + if (corePtr->widgetCmd) { + Tcl_Command cmd = corePtr->widgetCmd; + corePtr->widgetCmd = 0; + /* NB: this can reenter the interpreter via a command traces */ + Tcl_DeleteCommandFromToken(corePtr->interp, cmd); + } + Tcl_EventuallyFree(corePtr, (Tcl_FreeProc *) FreeWidget); +} + +/* + * CoreEventProc -- + * Event handler for basic events. + * Processes Expose, Configure, FocusIn/Out, and Destroy events. + * Also handles <<ThemeChanged>> virtual events. + * + * For Expose and Configure, simply schedule the widget for redisplay. + * For Destroy events, handle the cleanup process. + * + * For Focus events, set/clear the focus bit in the state field. + * It turns out this is impossible to do correctly in a binding script, + * because Tk filters out focus events with detail == NotifyInferior. + * + * For Deactivate/Activate pseudo-events, set/clear the background state + * flag. + */ + +static const unsigned CoreEventMask + = ExposureMask + | StructureNotifyMask + | FocusChangeMask + | VirtualEventMask + | ActivateMask + | EnterWindowMask + | LeaveWindowMask + ; + +static void CoreEventProc(ClientData clientData, XEvent *eventPtr) +{ + WidgetCore *corePtr = clientData; + + switch (eventPtr->type) + { + case ConfigureNotify : + TtkRedisplayWidget(corePtr); + break; + case Expose : + if (eventPtr->xexpose.count == 0) { + TtkRedisplayWidget(corePtr); + } + break; + case DestroyNotify : + Tk_DeleteEventHandler( + corePtr->tkwin, CoreEventMask,CoreEventProc,clientData); + DestroyWidget(corePtr); + break; + case FocusIn: + case FocusOut: + /* Don't process "virtual crossing" events */ + if ( eventPtr->xfocus.detail == NotifyInferior + || eventPtr->xfocus.detail == NotifyAncestor + || eventPtr->xfocus.detail == NotifyNonlinear) + { + if (eventPtr->type == FocusIn) + corePtr->state |= TTK_STATE_FOCUS; + else + corePtr->state &= ~TTK_STATE_FOCUS; + TtkRedisplayWidget(corePtr); + } + break; + case ActivateNotify: + corePtr->state &= ~TTK_STATE_BACKGROUND; + TtkRedisplayWidget(corePtr); + break; + case DeactivateNotify: + corePtr->state |= TTK_STATE_BACKGROUND; + TtkRedisplayWidget(corePtr); + break; + case LeaveNotify: + corePtr->state &= ~TTK_STATE_HOVER; + TtkRedisplayWidget(corePtr); + break; + case EnterNotify: + corePtr->state |= TTK_STATE_HOVER; + TtkRedisplayWidget(corePtr); + break; + case VirtualEvent: + if (!strcmp("ThemeChanged", ((XVirtualEvent *)(eventPtr))->name)) { + (void)UpdateLayout(corePtr->interp, corePtr); + SizeChanged(corePtr); + TtkRedisplayWidget(corePtr); + } + default: + /* can't happen... */ + break; + } +} + +/* + * WidgetWorldChanged -- + * Default Tk_ClassWorldChangedProc() for widgets. + * Invoked whenever fonts or other system resources are changed; + * recomputes geometry. + */ +static void WidgetWorldChanged(ClientData clientData) +{ + WidgetCore *corePtr = clientData; + SizeChanged(corePtr); + TtkRedisplayWidget(corePtr); +} + +static Tk_ClassProcs widgetClassProcs = { + sizeof(Tk_ClassProcs), /* size */ + WidgetWorldChanged, /* worldChangedProc */ + NULL, /* createProc */ + NULL /* modalProc */ +}; + +/* + * TtkWidgetConstructorObjCmd -- + * General-purpose widget constructor command implementation. + * ClientData is a WidgetSpec *. + */ +int TtkWidgetConstructorObjCmd( + ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetSpec *widgetSpec = clientData; + const char *className = widgetSpec->className; + Tk_OptionTable optionTable = + Tk_CreateOptionTable(interp, widgetSpec->optionSpecs); + Tk_Window tkwin; + void *recordPtr; + WidgetCore *corePtr; + Tk_SavedOptions savedOptions; + int i; + + if (objc < 2 || objc % 2 == 1) { + Tcl_WrongNumArgs(interp, 1, objv, "pathName ?-option value ...?"); + return TCL_ERROR; + } + + /* Check if a -class option has been specified. + * We have to do this before the InitOptions() call, + * since InitOptions() is affected by the widget class. + */ + for (i = 2; i < objc; i += 2) { + if (!strcmp(Tcl_GetString(objv[i]), "-class")) { + className = Tcl_GetString(objv[i+1]); + break; + } + } + + tkwin = Tk_CreateWindowFromPath( + interp, Tk_MainWindow(interp), Tcl_GetString(objv[1]), NULL); + if (tkwin == NULL) + return TCL_ERROR; + + /* + * Allocate and initialize the widget record. + */ + recordPtr = ckalloc(widgetSpec->recordSize); + memset(recordPtr, 0, widgetSpec->recordSize); + corePtr = recordPtr; + + corePtr->tkwin = tkwin; + corePtr->interp = interp; + corePtr->widgetSpec = widgetSpec; + corePtr->widgetCmd = Tcl_CreateObjCommand(interp, Tk_PathName(tkwin), + WidgetInstanceObjCmd, recordPtr, WidgetInstanceObjCmdDeleted); + corePtr->optionTable = optionTable; + corePtr->layout = NULL; + corePtr->flags = 0; + corePtr->state = 0; + + Tk_SetClass(tkwin, className); + Tk_SetClassProcs(tkwin, &widgetClassProcs, recordPtr); + Tk_SetWindowBackgroundPixmap(tkwin, ParentRelative); + + widgetSpec->initializeProc(interp, recordPtr); + + Tk_CreateEventHandler(tkwin, CoreEventMask, CoreEventProc, recordPtr); + + /* + * Initial configuration. + */ + + Tcl_Preserve(corePtr); + if (Tk_InitOptions(interp, recordPtr, optionTable, tkwin) != TCL_OK) { + goto error; + } + + if (Tk_SetOptions(interp, recordPtr, optionTable, + objc - 2, objv + 2, tkwin, &savedOptions, NULL) != TCL_OK) { + Tk_RestoreSavedOptions(&savedOptions); + goto error; + } else { + Tk_FreeSavedOptions(&savedOptions); + } + if (widgetSpec->configureProc(interp, recordPtr, ~0) != TCL_OK) + goto error; + if (widgetSpec->postConfigureProc(interp, recordPtr, ~0) != TCL_OK) + goto error; + + if (WidgetDestroyed(corePtr)) + goto error; + + Tcl_Release(corePtr); + + SizeChanged(corePtr); + Tk_MakeWindowExist(tkwin); + + Tcl_SetObjResult(interp, Tcl_NewStringObj(Tk_PathName(tkwin), -1)); + return TCL_OK; + +error: + if (WidgetDestroyed(corePtr)) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "widget has been destroyed", -1)); + } else { + Tk_DestroyWindow(tkwin); + } + Tcl_Release(corePtr); + return TCL_ERROR; +} + +/*------------------------------------------------------------------------ + * +++ Default implementations for widget hook procedures. + */ + +/* TtkWidgetGetLayout -- + * Default getLayoutProc. + * Looks up the layout based on the -style resource (if specified), + * otherwise use the widget class. + */ +Ttk_Layout TtkWidgetGetLayout( + Tcl_Interp *interp, Ttk_Theme themePtr, void *recordPtr) +{ + WidgetCore *corePtr = recordPtr; + const char *styleName = 0; + + if (corePtr->styleObj) + styleName = Tcl_GetString(corePtr->styleObj); + + if (!styleName || *styleName == '\0') + styleName = corePtr->widgetSpec->className; + + return Ttk_CreateLayout(interp, themePtr, styleName, + recordPtr, corePtr->optionTable, corePtr->tkwin); +} + +/* + * TtkWidgetGetOrientedLayout -- + * Helper routine. Same as TtkWidgetGetLayout, but prefixes + * "Horizontal." or "Vertical." to the style name, depending + * on the value of the 'orient' option. + */ +Ttk_Layout TtkWidgetGetOrientedLayout( + Tcl_Interp *interp, Ttk_Theme themePtr, void *recordPtr, Tcl_Obj *orientObj) +{ + WidgetCore *corePtr = recordPtr; + const char *baseStyleName = 0; + Tcl_DString styleName; + int orient = TTK_ORIENT_HORIZONTAL; + Ttk_Layout layout; + + Tcl_DStringInit(&styleName); + + /* Prefix: + */ + Ttk_GetOrientFromObj(NULL, orientObj, &orient); + if (orient == TTK_ORIENT_HORIZONTAL) + Tcl_DStringAppend(&styleName, "Horizontal.", -1); + else + Tcl_DStringAppend(&styleName, "Vertical.", -1); + + /* Add base style name: + */ + if (corePtr->styleObj) + baseStyleName = Tcl_GetString(corePtr->styleObj); + if (!baseStyleName || *baseStyleName == '\0') + baseStyleName = corePtr->widgetSpec->className; + + Tcl_DStringAppend(&styleName, baseStyleName, -1); + + /* Create layout: + */ + layout= Ttk_CreateLayout(interp, themePtr, Tcl_DStringValue(&styleName), + recordPtr, corePtr->optionTable, corePtr->tkwin); + + Tcl_DStringFree(&styleName); + + return layout; +} + +/* TtkNullInitialize -- + * Default widget initializeProc (no-op) + */ +void TtkNullInitialize(Tcl_Interp *interp, void *recordPtr) +{ +} + +/* TtkNullPostConfigure -- + * Default widget postConfigureProc (no-op) + */ +int TtkNullPostConfigure(Tcl_Interp *interp, void *clientData, int mask) +{ + return TCL_OK; +} + +/* TtkCoreConfigure -- + * Default widget configureProc. + * Handles -style option. + */ +int TtkCoreConfigure(Tcl_Interp *interp, void *clientData, int mask) +{ + WidgetCore *corePtr = clientData; + int status = TCL_OK; + + if (mask & STYLE_CHANGED) { + status = UpdateLayout(interp, corePtr); + } + + return status; +} + +/* TtkNullCleanup -- + * Default widget cleanupProc (no-op) + */ +void TtkNullCleanup(void *recordPtr) +{ + return; +} + +/* TtkWidgetDoLayout -- + * Default widget layoutProc. + */ +void TtkWidgetDoLayout(void *clientData) +{ + WidgetCore *corePtr = clientData; + Ttk_PlaceLayout(corePtr->layout,corePtr->state,Ttk_WinBox(corePtr->tkwin)); +} + +/* TtkWidgetDisplay -- + * Default widget displayProc. + */ +void TtkWidgetDisplay(void *recordPtr, Drawable d) +{ + WidgetCore *corePtr = recordPtr; + Ttk_DrawLayout(corePtr->layout, corePtr->state, d); +} + +/* TtkWidgetSize -- + * Default widget sizeProc() + */ +int TtkWidgetSize(void *recordPtr, int *widthPtr, int *heightPtr) +{ + WidgetCore *corePtr = recordPtr; + Ttk_LayoutSize(corePtr->layout, corePtr->state, widthPtr, heightPtr); + return 1; +} + +/*------------------------------------------------------------------------ + * +++ Default implementations for widget subcommands. + */ + +/* $w cget -option + */ +int TtkWidgetCgetCommand( + void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = recordPtr; + Tcl_Obj *result; + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 2, objv, "option"); + return TCL_ERROR; + } + result = Tk_GetOptionValue(interp, recordPtr, + corePtr->optionTable, objv[2], corePtr->tkwin); + if (result == NULL) + return TCL_ERROR; + Tcl_SetObjResult(interp, result); + return TCL_OK; +} + +/* $w configure ?-option ?value ....?? + */ +int TtkWidgetConfigureCommand( + void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = recordPtr; + Tcl_Obj *result; + + if (objc == 2) { + result = Tk_GetOptionInfo(interp, recordPtr, + corePtr->optionTable, NULL, corePtr->tkwin); + } else if (objc == 3) { + result = Tk_GetOptionInfo(interp, recordPtr, + corePtr->optionTable, objv[2], corePtr->tkwin); + } else { + Tk_SavedOptions savedOptions; + int status; + int mask = 0; + + status = Tk_SetOptions(interp, recordPtr, + corePtr->optionTable, objc - 2, objv + 2, + corePtr->tkwin, &savedOptions, &mask); + if (status != TCL_OK) + return status; + + if (mask & READONLY_OPTION) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "attempt to change read-only option", -1)); + Tk_RestoreSavedOptions(&savedOptions); + return TCL_ERROR; + } + + status = corePtr->widgetSpec->configureProc(interp, recordPtr, mask); + if (status != TCL_OK) { + Tk_RestoreSavedOptions(&savedOptions); + return status; + } + Tk_FreeSavedOptions(&savedOptions); + + status = corePtr->widgetSpec->postConfigureProc(interp,recordPtr,mask); + if (WidgetDestroyed(corePtr)) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "widget has been destroyed", -1)); + status = TCL_ERROR; + } + if (status != TCL_OK) { + return status; + } + + if (mask & (STYLE_CHANGED | GEOMETRY_CHANGED)) { + SizeChanged(corePtr); + } + + TtkRedisplayWidget(corePtr); + result = Tcl_NewObj(); + } + + if (result == 0) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, result); + return TCL_OK; +} + +/* $w state ? $stateSpec ? + * + * If $stateSpec is specified, modify the widget state accordingly, + * return a new stateSpec representing the changed bits. + * + * Otherwise, return a statespec matching all the currently-set bits. + */ + +int TtkWidgetStateCommand( + void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = recordPtr; + Ttk_StateSpec spec; + int status; + Ttk_State oldState, changed; + + if (objc == 2) { + Tcl_SetObjResult(interp, + Ttk_NewStateSpecObj(corePtr->state, 0ul)); + return TCL_OK; + } + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 2, objv, "state-spec"); + return TCL_ERROR; + } + status = Ttk_GetStateSpecFromObj(interp, objv[2], &spec); + if (status != TCL_OK) + return status; + + oldState = corePtr->state; + corePtr->state = Ttk_ModifyState(corePtr->state, &spec); + changed = corePtr->state ^ oldState; + + TtkRedisplayWidget(corePtr); + + Tcl_SetObjResult(interp, + Ttk_NewStateSpecObj(oldState & changed, ~oldState & changed)); + return status; +} + +/* $w instate $stateSpec ?$script? + * + * Tests if widget state matches $stateSpec. + * If $script is specified, execute script if state matches. + * Otherwise, return true/false + */ + +int TtkWidgetInstateCommand( + void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = recordPtr; + Ttk_State state = corePtr->state; + Ttk_StateSpec spec; + int status = TCL_OK; + + if (objc < 3 || objc > 4) { + Tcl_WrongNumArgs(interp, 2, objv, "state-spec ?script?"); + return TCL_ERROR; + } + status = Ttk_GetStateSpecFromObj(interp, objv[2], &spec); + if (status != TCL_OK) + return status; + + if (objc == 3) { + Tcl_SetObjResult(interp, + Tcl_NewBooleanObj(Ttk_StateMatches(state,&spec))); + } else if (objc == 4) { + if (Ttk_StateMatches(state,&spec)) { + status = Tcl_EvalObjEx(interp, objv[3], 0); + } + } + return status; +} + +/* $w identify $x $y + * $w identify element $x $y + * Returns: name of element at $x, $y + */ +int TtkWidgetIdentifyCommand( + void *recordPtr, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) +{ + WidgetCore *corePtr = recordPtr; + Ttk_Element element; + static const char *whatTable[] = { "element", NULL }; + int x, y, what; + + if (objc < 4 || objc > 5) { + Tcl_WrongNumArgs(interp, 2, objv, "?what? x y"); + return TCL_ERROR; + } + if (objc == 5) { + /* $w identify element $x $y */ + if (Tcl_GetIndexFromObjStruct(interp, objv[2], whatTable, + sizeof(char *), "option", 0, &what) != TCL_OK) + { + return TCL_ERROR; + } + } + + if ( Tcl_GetIntFromObj(interp, objv[objc-2], &x) != TCL_OK + || Tcl_GetIntFromObj(interp, objv[objc-1], &y) != TCL_OK + ) { + return TCL_ERROR; + } + + element = Ttk_IdentifyElement(corePtr->layout, x, y); + if (element) { + const char *elementName = Ttk_ElementName(element); + Tcl_SetObjResult(interp,Tcl_NewStringObj(elementName,-1)); + } + + return TCL_OK; +} + +/*EOF*/ |