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BCLV: Adjust arrow key behavior.

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- Left/right arrow can now be used to collapse/expand the focus
  row. Holding shift reverts to the previous behavior of scrolling
  the view.
This commit is contained in:
Rene Gollent
2014-11-23 09:57:18 -05:00
parent 6136e4303c
commit 8b27b73055
1 changed files with 27 additions and 15 deletions
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src/kits/interface/ColumnListView.cpp
+27 -15
View File
@@ -1656,24 +1656,36 @@ BColumnListView::KeyDown(const char* bytes, int32 numBytes)
case B_RIGHT_ARROW: case B_RIGHT_ARROW:
case B_LEFT_ARROW: case B_LEFT_ARROW:
{ {
float minVal, maxVal; if ((modifiers() & B_SHIFT_KEY) != 0) {
fHorizontalScrollBar->GetRange(&minVal, &maxVal); float minVal, maxVal;
float smallStep, largeStep; fHorizontalScrollBar->GetRange(&minVal, &maxVal);
fHorizontalScrollBar->GetSteps(&smallStep, &largeStep); float smallStep, largeStep;
float oldVal = fHorizontalScrollBar->Value(); fHorizontalScrollBar->GetSteps(&smallStep, &largeStep);
float newVal = oldVal; float oldVal = fHorizontalScrollBar->Value();
float newVal = oldVal;
if (c == B_LEFT_ARROW) if (c == B_LEFT_ARROW)
newVal -= smallStep; newVal -= smallStep;
else if (c == B_RIGHT_ARROW) else if (c == B_RIGHT_ARROW)
newVal += smallStep; newVal += smallStep;
if (newVal < minVal) if (newVal < minVal)
newVal = minVal; newVal = minVal;
else if (newVal > maxVal) else if (newVal > maxVal)
newVal = maxVal; newVal = maxVal;
fHorizontalScrollBar->SetValue(newVal); fHorizontalScrollBar->SetValue(newVal);
} else {
BRow* focusRow = fOutlineView->FocusRow();
if (focusRow == NULL)
break;
bool expanded = focusRow->IsExpanded();
if ((c == B_RIGHT_ARROW && !expanded)
|| (c == B_LEFT_ARROW && expanded)) {
fOutlineView->ToggleFocusRowOpen();
}
}
break; break;
} }