本文整理汇总了C++中TrackList::Leaders方法的典型用法代码示例。如果您正苦于以下问题：C++ TrackList::Leaders方法的具体用法？C++ TrackList::Leaders怎么用？C++ TrackList::Leaders使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TrackList的用法示例。
在下文中一共展示了TrackList::Leaders方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Apply
bool SelectTracksCommand::Apply(const CommandContext &context)
{
// Count selection as a do-nothing effect.
// Used to invalidate cached selection and tracks.
Effect::IncEffectCounter();
int index = 0;
TrackList *tracks = context.GetProject()->GetTracks();
// Defaults if no value...
if( !bHasNumTracks )
mNumTracks = 1.0;
if( !bHasFirstTrack )
mFirstTrack = 0.0;
// Multiple channels count as fractions of a track.
double last = mFirstTrack+mNumTracks;
double first = mFirstTrack;
for (auto t : tracks->Leaders()) {
auto channels = TrackList::Channels(t);
double term = 0.0;
// Add 0.01 so we are free of rounding errors in comparisons.
constexpr double fudge = 0.01;
for (auto channel : channels) {
double track = index + fudge + term;
bool sel = first <= track && track <= last;
if( mMode == 0 ){ // Set
channel->SetSelected(sel);
}
else if( mMode == 1 && sel ){ // Add
channel->SetSelected(sel);
}
else if( mMode == 2 && sel ){ // Remove
channel->SetSelected(!sel);
}
term += 1.0 / channels.size();
}
++index;
}
return true;
}