void WrappingTextView::ResetTextRect()
{
BRect bounds = Bounds();
BRect textRect = bounds;
textRect.left = 4.0;
textRect.top = m_vertical_offset + 4.0f;
if (m_fixed_width)
textRect.right = 8.0f + StringWidth( "0") * float(m_fixed_width);
else
textRect.right -= 4.0f;
textRect.bottom -= 4.0f;
SetTextRect(textRect);
// we have to readjust the scrollbar-proportion, since
// the BTextView doesn't do it correctly when we have
// fooled in a vertical_offset:
float small, big;
BScrollBar* bar = ScrollBar( B_VERTICAL);
if (!bar) return;
bar->GetSteps( &small, &big);
float height = TextHeight( 0, TextLength());
if (height+m_vertical_offset)
bar->SetProportion( MIN( 1.0f, big/(height+m_vertical_offset)));
else
bar->SetProportion( 1.0f);
if (BeamOnDano) {
// circumvent a special feature/bug in Zeta with respect to
// the scrollbar not always calling ValueChanged() on a click.
// Seemingly, changing the value twice hides the bug:
bar->SetValue(1);
bar->SetValue(0);
}
bar = ScrollBar( B_HORIZONTAL);
if (!bar) return;
float width = bounds.Width();
float maxWidth = MAX( width, textRect.right);
int numChildren = IsEditable() ? 0 : CountChildren();
for( int i=0; i<numChildren; ++i) {
float w = ChildAt( i)->Frame().Width();
if (w > maxWidth)
maxWidth = w;
}
bar->SetSteps( width/10, width);
bar->SetRange( 0, MAX(0, maxWidth-width));
bar->SetProportion( MIN( 1.0f, width/maxWidth));
}
void WrappingTextView::KeyDown(const char *bytes, int32 numBytes)
{
if (IsEditable() && numBytes==1) {
m_last_key_was_del = (bytes[0]==B_DELETE);
switch( bytes[0]) {
case B_RIGHT_ARROW: {
// implement word-wise movement:
int32 mods = Window()->CurrentMessage()->FindInt32("modifiers");
if (mods & (B_LEFT_CONTROL_KEY | B_RIGHT_OPTION_KEY)) {
int32 len=TextLength();
int32 startPos, endPos;
GetSelection( &startPos, &endPos);
if (endPos==len)
break;
if (startPos==endPos && (mods & B_SHIFT_KEY))
m_selection_start=B_RIGHT_ARROW;
int32 wordStart, wordEnd;
if (mods & B_SHIFT_KEY && m_selection_start==B_LEFT_ARROW) {
do {
FindWord( startPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( ++startPos < len);
Select( MIN(endPos, wordEnd), endPos);
} else {
do {
FindWord( endPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( ++endPos < len);
if (mods & B_SHIFT_KEY) {
Select( startPos, wordEnd);
} else
Select( wordEnd, wordEnd);
}
ScrollToSelection();
} else
inherited::KeyDown( bytes, numBytes);
break;
}
case B_LEFT_ARROW: {
// implement word-wise movement:
int32 mods = Window()->CurrentMessage()->FindInt32("modifiers");
if (mods & (B_LEFT_CONTROL_KEY | B_RIGHT_OPTION_KEY)) {
int32 startPos, endPos;
GetSelection( &startPos, &endPos);
if (!startPos)
break;
if (startPos==endPos && (mods & B_SHIFT_KEY))
m_selection_start=B_LEFT_ARROW;
int32 wordStart, wordEnd;
if (mods & B_SHIFT_KEY && m_selection_start==B_RIGHT_ARROW) {
--endPos;
do {
FindWord( endPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( --endPos > 0);
Select( startPos, MAX( startPos, wordStart));
} else {
--startPos;
do {
FindWord( startPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( --startPos > 0);
if (mods & B_SHIFT_KEY)
Select( wordStart, endPos);
else
Select( wordStart, wordStart);
}
ScrollToSelection();
} else
inherited::KeyDown( bytes, numBytes);
break;
}
default:
inherited::KeyDown( bytes, numBytes);
break;
}
} else if ( numBytes == 1 ) {
// in read-only mode, we use cursor-keys to move scrollbar, and
// we remap HOME / END to the vertical scrollbar (not the horizontal,
// which is default).
switch( bytes[0]) {
case B_PAGE_UP:
case B_PAGE_DOWN:
case B_UP_ARROW:
case B_DOWN_ARROW:
case B_HOME:
case B_END: {
// move vertical scrollbar:
float min, max, smallStep, bigStep, value;
BScrollBar* bar = ScrollBar( B_VERTICAL);
if (!bar) return;
bar->GetRange( &min, &max);
bar->GetSteps( &smallStep, &bigStep);
value = bar->Value();
if (bytes[0] == B_UP_ARROW) {
value = MAX( value-smallStep, min);
} else if (bytes[0] == B_DOWN_ARROW) {
value = MIN( value+smallStep, max);
} else if (bytes[0] == B_PAGE_UP) {
value = MAX( value-bigStep, min);
} else if (bytes[0] == B_PAGE_DOWN) {
value = MIN( value+bigStep, max);
} else if (bytes[0] == B_HOME) {
value = min;
} else if (bytes[0] == B_END) {
value = max;
}
bar->SetValue( value);
break;
}
default:
BTextView::KeyDown( bytes, numBytes);
break;
}
} else
inherited::KeyDown( bytes, numBytes);
}
