diff options
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tkText.c | 31 | ||||
| -rw-r--r-- | generic/tkText.h | 1 | ||||
| -rw-r--r-- | generic/tkTextDisp.c | 70 |
3 files changed, 97 insertions, 5 deletions
diff --git a/generic/tkText.c b/generic/tkText.c index 6e982b0..5c7f187 100644 --- a/generic/tkText.c +++ b/generic/tkText.c @@ -689,15 +689,16 @@ TextWidgetObjCmd( static const char *optionStrings[] = { "bbox", "cget", "compare", "configure", "count", "debug", "delete", "dlineinfo", "dump", "edit", "get", "image", "index", "insert", - "mark", "peer", "replace", "scan", "search", "see", "tag", "window", - "xview", "yview", NULL + "mark", "peer", "pendingyupdate", "replace", "scan", "search", + "see", "tag", "window", "xview", "yupdate", "yview", NULL }; enum options { TEXT_BBOX, TEXT_CGET, TEXT_COMPARE, TEXT_CONFIGURE, TEXT_COUNT, TEXT_DEBUG, TEXT_DELETE, TEXT_DLINEINFO, TEXT_DUMP, TEXT_EDIT, TEXT_GET, TEXT_IMAGE, TEXT_INDEX, TEXT_INSERT, TEXT_MARK, - TEXT_PEER, TEXT_REPLACE, TEXT_SCAN, TEXT_SEARCH, TEXT_SEE, - TEXT_TAG, TEXT_WINDOW, TEXT_XVIEW, TEXT_YVIEW + TEXT_PEER, TEXT_PENDINGYUPDATE, TEXT_REPLACE, TEXT_SCAN, + TEXT_SEARCH, TEXT_SEE, TEXT_TAG, TEXT_WINDOW, TEXT_XVIEW, + TEXT_YUPDATE, TEXT_YVIEW }; if (objc < 2) { @@ -1372,6 +1373,18 @@ TextWidgetObjCmd( case TEXT_PEER: result = TextPeerCmd(textPtr, interp, objc, objv); break; + case TEXT_PENDINGYUPDATE: { + int number; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 2, objv, NULL); + result = TCL_ERROR; + goto done; + } + number = TkTextPendingyupdate(textPtr); + Tcl_SetObjResult(interp, Tcl_NewIntObj(number)); + break; + } case TEXT_REPLACE: { const TkTextIndex *indexFromPtr, *indexToPtr; @@ -1494,6 +1507,16 @@ TextWidgetObjCmd( case TEXT_XVIEW: result = TkTextXviewCmd(textPtr, interp, objc, objv); break; + case TEXT_YUPDATE: { + if (objc != 2) { + Tcl_WrongNumArgs(interp, 2, objv, NULL); + result = TCL_ERROR; + goto done; + } + TkTextUpdateLineMetrics(textPtr, 1, + TkBTreeNumLines(textPtr->sharedTextPtr->tree, textPtr), -1); + break; + } case TEXT_YVIEW: result = TkTextYviewCmd(textPtr, interp, objc, objv); break; diff --git a/generic/tkText.h b/generic/tkText.h index 6f5f153..2d1bcaa 100644 --- a/generic/tkText.h +++ b/generic/tkText.h @@ -1124,6 +1124,7 @@ MODULE_SCOPE int TkTextMarkNameToIndex(TkText *textPtr, MODULE_SCOPE void TkTextMarkSegToIndex(TkText *textPtr, TkTextSegment *markPtr, TkTextIndex *indexPtr); MODULE_SCOPE void TkTextEventuallyRepick(TkText *textPtr); +MODULE_SCOPE int TkTextPendingyupdate(TkText *textPtr); MODULE_SCOPE void TkTextPickCurrent(TkText *textPtr, XEvent *eventPtr); MODULE_SCOPE void TkTextPixelIndex(TkText *textPtr, int x, int y, TkTextIndex *indexPtr, int *nearest); diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index 6036222..ff90520 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -590,6 +590,7 @@ static int TextGetScrollInfoObj(Tcl_Interp *interp, Tcl_Obj *CONST objv[], double *dblPtr, int *intPtr); static void AsyncUpdateLineMetrics(ClientData clientData); +static void GenerateTextLineHeightsInvalidEvent(TkText *textPtr); static void AsyncUpdateYScrollbar(ClientData clientData); static int IsStartOfNotMergedLine(TkText *textPtr, CONST TkTextIndex *indexPtr); @@ -2920,6 +2921,8 @@ AsyncUpdateLineMetrics( lineNum = TkTextUpdateLineMetrics(textPtr, lineNum, dInfoPtr->lastMetricUpdateLine, 256); + dInfoPtr->currentMetricUpdateLine = lineNum; + if (tkTextDebug) { char buffer[2 * TCL_INTEGER_SPACE + 1]; @@ -2927,6 +2930,8 @@ AsyncUpdateLineMetrics( LOG("tk_textInvalidateLine", buffer); } + GenerateTextLineHeightsInvalidEvent(textPtr); + /* * If we're not in the middle of a long-line calculation (metricEpoch==-1) * and we've reached the last line, then we're done. @@ -2946,7 +2951,6 @@ AsyncUpdateLineMetrics( } return; } - dInfoPtr->currentMetricUpdateLine = lineNum; /* * Re-arm the timer. We already have a refCount on the text widget so no @@ -2960,6 +2964,43 @@ AsyncUpdateLineMetrics( /* *---------------------------------------------------------------------- * + * GenerateTextLineHeightsInvalidEvent -- + * + * Send the <<TextLineHeightsInvalid>> event related to the text widget + * line metrics asynchronous update. + * This is equivalent to: + * event generate $textWidget <<TextLineHeightsInvalid>> -detail $N + * where $N is the number of lines for which the height is outdated. + * + * Results: + * None + * + * Side effects: + * If corresponding bindings are present, they will trigger. + * + *---------------------------------------------------------------------- + */ + +static void +GenerateTextLineHeightsInvalidEvent( + TkText *textPtr) /* Information about text widget. */ +{ + union {XEvent general; XVirtualEvent virtual;} event; + + memset(&event, 0, sizeof(event)); + event.general.xany.type = VirtualEvent; + event.general.xany.serial = NextRequest(Tk_Display(textPtr->tkwin)); + event.general.xany.send_event = False; + event.general.xany.window = Tk_WindowId(textPtr->tkwin); + event.general.xany.display = Tk_Display(textPtr->tkwin); + event.virtual.name = Tk_GetUid("TextLineHeightsInvalid"); + event.virtual.user_data = Tcl_NewIntObj(TkTextPendingyupdate(textPtr)); + Tk_HandleEvent(&event.general); +} + +/* + *---------------------------------------------------------------------- + * * TkTextUpdateLineMetrics -- * * This function updates the pixel height calculations of a range of @@ -6034,6 +6075,33 @@ TkTextYviewCmd( /* *-------------------------------------------------------------- * + * TkTextPendingyupdate -- + * + * This function computes how many lines are not up-to-date regarding + * asynchronous height calculations. + * + * Results: + * Returns a positive integer corresponding to the number of lines for + * which the height is outdated. + * + * Side effects: + * None. + * + *-------------------------------------------------------------- + */ + +int +TkTextPendingyupdate( + TkText *textPtr) /* Information about text widget. */ +{ + TextDInfo *dInfoPtr = textPtr->dInfoPtr; + + return (dInfoPtr->lastMetricUpdateLine - dInfoPtr->currentMetricUpdateLine); +} + +/* + *-------------------------------------------------------------- + * * TkTextScanCmd -- * * This function is invoked to process the "scan" option for the widget |