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Implement BeOS style scrollbar knobs.

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Not hooked up to a setting yet.
This commit is contained in:
John Scipione 2012-10-31 20:27:47 -04:00
parent ab4ed6e33b
commit a0e61cdf4c
1 changed files with 60 additions and 0 deletions
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60
src/kits/interface/ScrollBar.cpp
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@ -1152,6 +1152,66 @@ BScrollBar::Draw(BRect updateRect)
FillRect(rect);
}
}
bool square = false;
int32 hextent = 0;
int32 vextent = 0;
if (square) {
hextent = 2;
vextent = 2;
} else {
hextent = 1;
vextent = 3;
}
// draw the marks on the scrollbar thumb
int32 flags = 0;
if (!enabled)
flags |= BControlLook::B_DISABLED;
float hmiddle = rect.Width() / 2;
float vmiddle = rect.Height() / 2;
BRect middleMark = BRect(
rect.left + hmiddle
- (fOrientation == B_HORIZONTAL ? hextent : vextent),
rect.top + vmiddle
- (fOrientation == B_HORIZONTAL ? vextent : hextent),
rect.left + hmiddle
+ (fOrientation == B_HORIZONTAL ? hextent : vextent),
rect.top + vmiddle
+ (fOrientation == B_HORIZONTAL ? vextent : hextent));
if (fOrientation == B_HORIZONTAL) {
BRect leftMark = middleMark.OffsetByCopy(hextent * -4, 0);
if (leftMark.left > rect.left + hextent) {
be_control_look->DrawButtonBackground(this, leftMark, updateRect,
normal, flags, BControlLook::B_ALL_BORDERS, fOrientation);
}
BRect rightMark = middleMark.OffsetByCopy(hextent * 4, 0);
if (rightMark.right < rect.right - hextent) {
be_control_look->DrawButtonBackground(this, rightMark, updateRect,
normal, flags, BControlLook::B_ALL_BORDERS, fOrientation);
}
} else {
BRect topMark = middleMark.OffsetByCopy(0, hextent * -4);
if (topMark.top > rect.top + vextent) {
be_control_look->DrawButtonBackground(this, topMark, updateRect,
normal, flags, BControlLook::B_ALL_BORDERS, fOrientation);
}
BRect bottomMark = middleMark.OffsetByCopy(0, hextent * 4);
if (bottomMark.bottom < rect.bottom - vextent) {
be_control_look->DrawButtonBackground(this, bottomMark, updateRect,
normal, flags, BControlLook::B_ALL_BORDERS, fOrientation);
}
}
// draw middle mark last because it modifies middleMark
be_control_look->DrawButtonBackground(this, middleMark, updateRect,
normal, flags, BControlLook::B_ALL_BORDERS, fOrientation);
}