| 28 | } |
| 29 | |
| 30 | void UISlider::Listener::onBeginFrame() FL_NOEXCEPT { |
| 31 | UISlider &owner = *mOwner; |
| 32 | if (!owner.mLastFrameValueValid) { |
| 33 | owner.mLastFrameValue = owner.value(); |
| 34 | owner.mLastFrameValueValid = true; |
| 35 | return; |
| 36 | } |
| 37 | float value = owner.value(); |
| 38 | if (value != owner.mLastFrameValue) { |
| 39 | owner.mCallbacks.invoke(*mOwner); |
| 40 | owner.mLastFrameValue = value; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | } // namespace fl |
| 45 |