diff options
Diffstat (limited to 'indra/llui/llscrollbar.cpp')
| -rw-r--r-- | indra/llui/llscrollbar.cpp | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/indra/llui/llscrollbar.cpp b/indra/llui/llscrollbar.cpp index 0d674528dc..dfd315d451 100644 --- a/indra/llui/llscrollbar.cpp +++ b/indra/llui/llscrollbar.cpp @@ -149,7 +149,8 @@ void LLScrollbar::setDocParams( S32 size, S32 pos ) updateThumbRect(); } -void LLScrollbar::setDocPos(S32 pos, BOOL update_thumb) +// returns true if document position really changed +bool LLScrollbar::setDocPos(S32 pos, BOOL update_thumb) { pos = llclamp(pos, 0, getDocPosMax()); if (pos != mDocPos) @@ -166,7 +167,9 @@ void LLScrollbar::setDocPos(S32 pos, BOOL update_thumb) { updateThumbRect(); } + return true; } + return false; } void LLScrollbar::setDocSize(S32 size) @@ -409,13 +412,8 @@ BOOL LLScrollbar::handleHover(S32 x, S32 y, MASK mask) BOOL LLScrollbar::handleScrollWheel(S32 x, S32 y, S32 clicks) { - S32 pos = llclamp(mDocPos + clicks * mStepSize, 0, getDocPosMax()); - if (pos != mDocPos) - { - setDocPos(pos, TRUE); - return TRUE; - } - return FALSE; + BOOL handled = changeLine( clicks * mStepSize, TRUE ); + return handled; } BOOL LLScrollbar::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop, @@ -578,9 +576,9 @@ void LLScrollbar::draw() } // end draw -void LLScrollbar::changeLine( S32 delta, BOOL update_thumb ) +bool LLScrollbar::changeLine( S32 delta, BOOL update_thumb ) { - setDocPos(mDocPos + delta, update_thumb); + return setDocPos(mDocPos + delta, update_thumb); } void LLScrollbar::setValue(const LLSD& value) |