diff options
Diffstat (limited to 'generic/tkTextDisp.c')
| -rw-r--r-- | generic/tkTextDisp.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index 9738c95..108cc4a 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -659,17 +659,8 @@ TkTextCreateDInfo( dInfoPtr->metricEpoch = -1; dInfoPtr->metricIndex.textPtr = NULL; dInfoPtr->metricIndex.linePtr = NULL; - - /* - * Add a refCount for each of the idle call-backs. - */ - - textPtr->refCount++; - dInfoPtr->lineUpdateTimer = Tcl_CreateTimerHandler(0, - AsyncUpdateLineMetrics, (ClientData) textPtr); - textPtr->refCount++; - dInfoPtr->scrollbarTimer = Tcl_CreateTimerHandler(200, - AsyncUpdateYScrollbar, (ClientData) textPtr); + dInfoPtr->lineUpdateTimer = NULL; + dInfoPtr->scrollbarTimer = NULL; textPtr->dInfoPtr = dInfoPtr; } @@ -2913,9 +2904,10 @@ AsyncUpdateLineMetrics( dInfoPtr->lineUpdateTimer = NULL; - if ((textPtr->tkwin == NULL) || (textPtr->flags & DESTROYED)) { + if ((textPtr->tkwin == NULL) || (textPtr->flags & DESTROYED) + || !Tk_IsMapped(textPtr->tkwin)) { /* - * The widget has been deleted. Don't do anything. + * The widget has been deleted, or is not mapped. Don't do anything. */ if (--textPtr->refCount == 0) { @@ -5302,6 +5294,15 @@ TkTextSetYView( } /* + * If the window height is smaller than the line height, prefer to make + * the top of the line visible. + */ + + if (dInfoPtr->maxY - dInfoPtr->y < lineHeight) { + bottomY = lineHeight; + } + + /* * Our job now is to arrange the display so that indexPtr appears as low * on the screen as possible but with its bottom no lower than bottomY. * BottomY is the bottom of the window if the desired line is just below |