Autres/audacity
1
0
Fork 0
mirror of https://github.com/cookiengineer/audacity synced 2025-06-16 16:10:06 +02:00
Code Issues Releases Wiki Activity

Some refactoring of SubViewAdjustHandle

Browse Source
This commit is contained in:
Paul Licameli 2020-01-15 12:46:28 -05:00
parent 468d48b8dd
commit 1fa41808c2
1 changed files with 39 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
src/tracks/playabletrack/wavetrack/ui/WaveTrackView.cpp
View File

@ -111,6 +111,9 @@ struct SubViewAdjuster
mFirstSubView = first - begin;
}
size_t NVisible() const
{ return mPermutation.size() - mFirstSubView; }
bool ModifyPermutation( bool top )
{
bool rotated = false;
@ -149,15 +152,20 @@ struct SubViewAdjuster
return rotated;
}
std::pair< size_t, bool >
HitTest( WaveTrackSubView &subView,
wxCoord yy, wxCoord top, wxCoord height )
size_t FindIndex( WaveTrackSubView &subView ) const
{
const auto begin = mPermutation.begin(), end = mPermutation.end();
auto iter = std::find_if( begin, end, [&](size_t ii){
return mSubViews[ ii ].get() == &subView;
} );
auto index = iter - begin;
return iter - begin;
}
std::pair< size_t, bool >
HitTest( WaveTrackSubView &subView,
wxCoord yy, wxCoord top, wxCoord height )
{
const auto index = FindIndex( subView );
auto size = mPermutation.size();
if ( index < (int)size ) {
yy -= top;
@ -172,6 +180,30 @@ struct SubViewAdjuster
return { size, false }; // not hit
}
std::vector<wxCoord> ComputeHeights( wxCoord totalHeight )
{
// Compute integer-valued heights
float total = 0;
for (const auto index : mPermutation ) {
const auto &placement = mOrigPlacements[ index ];
total += std::max( 0.f, placement.fraction );
}
float partial = 0;
wxCoord lastCoord = 0;
std::vector<wxCoord> result;
for (const auto index : mPermutation ) {
const auto &placement = mOrigPlacements[ index ];
auto fraction = std::max( 0.f, placement.fraction );
wxCoord coord = ( (partial + fraction ) / total ) * totalHeight;
auto height = coord - lastCoord;
result.emplace_back( height );
mNewPlacements[ index ].fraction = height;
lastCoord = coord;
partial += fraction;
}
return result;
}
void UpdateViews( bool rollback )
{
auto pView = mwView.lock();
@ -256,26 +288,7 @@ public:
const auto height = rect.GetHeight();
mOrigHeight = height;
// Compute integer-valued heights
{
float total = 0;
for (const auto index : mAdjuster.mPermutation ) {
const auto &placement = mAdjuster.mOrigPlacements[ index ];
total += std::max( 0.f, placement.fraction );
}
float partial = 0;
wxCoord lastCoord = 0;
for (const auto index : mAdjuster.mPermutation ) {
const auto &placement = mAdjuster.mOrigPlacements[ index ];
auto fraction = std::max( 0.f, placement.fraction );
wxCoord coord = ( (partial + fraction ) / total ) * mViewHeight;
auto height = coord - lastCoord;
mOrigHeights.emplace_back( height );
mAdjuster.mNewPlacements[ index ].fraction = height;
lastCoord = coord;
partial += fraction;
}
}
mOrigHeights = mAdjuster.ComputeHeights( mViewHeight );
// Find the total height of the sub-views that may resize
mTotalHeight = 0;
@ -435,9 +448,8 @@ std::pair<
auto pWaveTrackView = mwWaveTrackView.lock();
if ( pWaveTrackView && !state.state.HasModifiers() ) {
auto pHandle = SubViewAdjustHandle::HitTest(
*pWaveTrackView, *this, state );
if (pHandle)
if ( auto pHandle = SubViewAdjustHandle::HitTest(
*pWaveTrackView, *this, state ) )
results.second.push_back( pHandle );
}
if (auto result = CutlineHandle::HitTest(