Audacity 3.2.0
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Private Member Functions | Private Attributes | List of all members
TrackView Class Referenceabstract

#include <TrackView.h>

Inheritance diagram for TrackView:
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Collaboration diagram for TrackView:
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Public Types

enum  : unsigned { DefaultHeight = 150 }
 
using Refinement = std::vector< std::pair< wxCoord, std::shared_ptr< TrackView > > >
 

Public Member Functions

 TrackView (const std::shared_ptr< Track > &pTrack)
 
virtual ~TrackView ()=0
 
void CopyTo (Track &track) const override
 Copy state, for undo/redo purposes. More...
 
bool GetMinimized () const
 
void SetMinimized (bool minimized)
 
int GetCumulativeHeightBefore () const
 
int GetExpandedHeight () const
 
virtual int GetMinimizedHeight () const =0
 
int GetHeight () const
 
void SetCumulativeHeightBefore (int y)
 Set cached value dependent on position within the track list. More...
 
void SetExpandedHeight (int height)
 
std::shared_ptr< TrackVRulerControlsGetVRulerControls ()
 
std::shared_ptr< const TrackVRulerControlsGetVRulerControls () const
 
virtual std::shared_ptr< CommonTrackCellGetAffordanceControls ()
 
void WriteXMLAttributes (XMLWriter &) const override
 Serialize persistent attributes. More...
 
bool HandleXMLAttribute (const std::string_view &attr, const XMLAttributeValueView &valueView) override
 Deserialize an attribute, returning true if recognized. More...
 
virtual Refinement GetSubViews (const wxRect &rect)
 
virtual bool IsSpectral () const
 
virtual void DoSetMinimized (bool isMinimized)
 
- Public Member Functions inherited from CommonTrackCell
 CommonTrackCell (const std::shared_ptr< Track > &pTrack)
 
 ~CommonTrackCell ()
 
std::shared_ptr< TrackDoFindTrack () override
 
void Reparent (const std::shared_ptr< Track > &parent) override
 Object may be shared among tracks but hold a special back-pointer to one of them; reassign it. More...
 
- Public Member Functions inherited from CommonTrackPanelCell
 CommonTrackPanelCell ()
 
virtual ~CommonTrackPanelCell ()=0
 
HitTestPreview DefaultPreview (const TrackPanelMouseState &, const AudacityProject *) override
 
std::shared_ptr< TrackFindTrack ()
 
std::shared_ptr< const TrackFindTrack () const
 
virtual std::vector< MenuItemGetMenuItems (const wxRect &rect, const wxPoint *pPosition, AudacityProject *pProject)
 Return a list of items for DoContextMenu() (empties for separators) More...
 
- Public Member Functions inherited from TrackPanelCell
 TrackPanelCell ()=default
 
 TrackPanelCell (const TrackPanelCell &) PROHIBITED
 
TrackPanelCelloperator= (const TrackPanelCell &) PROHIBITED
 
virtual ~TrackPanelCell ()=0
 
virtual HitTestPreview DefaultPreview (const TrackPanelMouseState &state, const AudacityProject *pProject)
 
virtual std::vector< UIHandlePtrHitTest (const TrackPanelMouseState &state, const AudacityProject *pProject)=0
 
virtual unsigned HandleWheelRotation (const TrackPanelMouseEvent &event, AudacityProject *pProject)
 
virtual std::shared_ptr< TrackPanelCellContextMenuDelegate ()
 
virtual unsigned DoContextMenu (const wxRect &rect, wxWindow *pParent, const wxPoint *pPosition, AudacityProject *pProject)
 
virtual unsigned CaptureKey (wxKeyEvent &event, ViewInfo &viewInfo, wxWindow *pParent, AudacityProject *project)
 
virtual unsigned KeyDown (wxKeyEvent &event, ViewInfo &viewInfo, wxWindow *pParent, AudacityProject *project)
 
virtual unsigned KeyUp (wxKeyEvent &event, ViewInfo &viewInfo, wxWindow *pParent, AudacityProject *project)
 
virtual unsigned Char (wxKeyEvent &event, ViewInfo &viewInfo, wxWindow *pParent, AudacityProject *project)
 
virtual unsigned LoseFocus (AudacityProject *project)
 
- Public Member Functions inherited from TrackPanelNode
 TrackPanelNode ()
 
virtual ~TrackPanelNode ()=0
 
- Public Member Functions inherited from TrackPanelDrawable
virtual ~TrackPanelDrawable ()=0
 
virtual void Draw (TrackPanelDrawingContext &context, const wxRect &rect, unsigned iPass)
 
virtual wxRect DrawingArea (TrackPanelDrawingContext &context, const wxRect &rect, const wxRect &panelRect, unsigned iPass)
 
- Public Member Functions inherited from TrackAttachment
virtual ~TrackAttachment ()
 
virtual void CopyTo (Track &track) const
 Copy state, for undo/redo purposes. More...
 
virtual void Reparent (const std::shared_ptr< Track > &parent)
 Object may be shared among tracks but hold a special back-pointer to one of them; reassign it. More...
 
virtual void WriteXMLAttributes (XMLWriter &) const
 Serialize persistent attributes. More...
 
virtual bool HandleXMLAttribute (const std::string_view &attr, const XMLAttributeValueView &valueView)
 Deserialize an attribute, returning true if recognized. More...
 
- Public Member Functions inherited from ClientData::Base
virtual ~Base ()
 

Static Public Member Functions

static int GetTrackHeight (const Track *pTrack)
 
static int GetChannelGroupHeight (const Track *pTrack)
 
static int GetCumulativeHeight (const Track *pTrack)
 
static int GetTotalHeight (const TrackList &list)
 
static TrackViewGet (Track &)
 
static const TrackViewGet (const Track &)
 
static TrackViewFind (Track *)
 
static const TrackViewFind (const Track *)
 
- Static Public Member Functions inherited from TrackPanelDrawable
static wxRect MaximizeWidth (const wxRect &rect, const wxRect &panelRect)
 
static wxRect MaximizeHeight (const wxRect &rect, const wxRect &panelRect)
 

Protected Member Functions

virtual std::shared_ptr< TrackVRulerControlsDoGetVRulerControls ()=0
 
- Protected Member Functions inherited from CommonTrackPanelCell
virtual std::shared_ptr< TrackDoFindTrack ()=0
 
unsigned DoContextMenu (const wxRect &rect, wxWindow *pParent, const wxPoint *pPosition, AudacityProject *pProject) override
 
unsigned HandleWheelRotation (const TrackPanelMouseEvent &event, AudacityProject *pProject) override
 

Protected Attributes

std::shared_ptr< TrackVRulerControlsmpVRulerControls
 

Private Member Functions

 TrackView (const TrackView &)=delete
 
TrackViewoperator= (const TrackView &)=delete
 
void DoSetY (int y)
 
void DoSetHeight (int h)
 

Private Attributes

bool mMinimized { false }
 
int mY { 0 }
 
int mHeight { DefaultHeight }
 

Detailed Description

Definition at line 23 of file TrackView.h.

Member Typedef Documentation

◆ Refinement

using TrackView::Refinement = std::vector< std::pair< wxCoord, std::shared_ptr< TrackView > > >

Definition at line 102 of file TrackView.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum : unsigned
Enumerator
DefaultHeight 

Definition at line 30 of file TrackView.h.

30: unsigned { DefaultHeight = 150 };
@ DefaultHeight
Definition: TrackView.h:30

Constructor & Destructor Documentation

◆ TrackView() [1/2]

TrackView::TrackView ( const TrackView )
privatedelete

◆ TrackView() [2/2]

TrackView::TrackView ( const std::shared_ptr< Track > &  pTrack)
explicit

Definition at line 19 of file TrackView.cpp.

20 : CommonTrackCell{ pTrack }
21{
23}
static Return Call(This &obj, Arguments &&...arguments)
Invoke the method – but only after static initialization time.
void DoSetHeight(int h)
Definition: TrackView.cpp:178

References AttachedVirtualFunction< Tag, Return, This, Arguments >::Call(), and DoSetHeight().

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◆ ~TrackView()

TrackView::~TrackView ( )
pure virtual

Definition at line 25 of file TrackView.cpp.

26{
27}

Member Function Documentation

◆ CopyTo()

void TrackView::CopyTo ( Track track) const
overridevirtual

Copy state, for undo/redo purposes.

Reimplemented from TrackAttachment.

Definition at line 52 of file TrackView.cpp.

53{
54 auto &other = Get( track );
55
56 other.mMinimized = mMinimized;
57
58 // Let mY remain 0 -- TrackPositioner corrects it later
59 other.mY = 0;
60 other.mHeight = mHeight;
61}
bool mMinimized
Definition: TrackView.h:128
int mHeight
Definition: TrackView.h:130
static TrackView & Get(Track &)
Definition: TrackView.cpp:69

References Get(), mHeight, and mMinimized.

Referenced by LabelTrackView::CopyTo(), and WaveTrackView::CopyTo().

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◆ DoGetVRulerControls()

virtual std::shared_ptr< TrackVRulerControls > TrackView::DoGetVRulerControls ( )
protectedpure virtual

Implemented in LabelTrackView, NoteTrackView, SpectrumView, WaveformView, WaveTrackView, and TimeTrackView.

Referenced by GetVRulerControls().

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◆ DoSetHeight()

void TrackView::DoSetHeight ( int  h)
private

Definition at line 178 of file TrackView.cpp.

179{
180 mHeight = h;
181}

References mHeight.

Referenced by SetExpandedHeight(), and TrackView().

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◆ DoSetMinimized()

void TrackView::DoSetMinimized ( bool  isMinimized)
virtual

Reimplemented in SpectrumView, WaveformView, and WaveTrackView.

Definition at line 141 of file TrackView.cpp.

142{
143 mMinimized = isMinimized;
144}

References mMinimized.

Referenced by WaveTrackView::BuildSubViews(), SpectrumView::DoSetMinimized(), WaveformView::DoSetMinimized(), WaveTrackView::DoSetMinimized(), and SetMinimized().

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◆ DoSetY()

void TrackView::DoSetY ( int  y)
private

Definition at line 159 of file TrackView.cpp.

160{
161 mY = y;
162}

References mY.

◆ Find() [1/2]

const TrackView * TrackView::Find ( const Track pTrack)
static

Definition at line 88 of file TrackView.cpp.

89{
90 return Find( const_cast< Track* >( pTrack ) );
91}
Abstract base class for an object holding data associated with points on a time axis.
Definition: Track.h:225
static TrackView * Find(Track *)
Definition: TrackView.cpp:79

References Find().

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◆ Find() [2/2]

TrackView * TrackView::Find ( Track pTrack)
static

Definition at line 79 of file TrackView.cpp.

80{
81 if (!pTrack)
82 return nullptr;
83 auto &track = *pTrack;
84 // do not create on demand if it is null
85 return track.AttachedObjects::Find< TrackView >( key );
86}
static const AttachedTrackObjects::RegisteredFactory key
Definition: TrackView.cpp:63

References key.

Referenced by Find(), and WaveTrackView::Find().

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◆ Get() [1/2]

const TrackView & TrackView::Get ( const Track track)
static

Definition at line 74 of file TrackView.cpp.

75{
76 return Get( const_cast< Track & >( track ) );
77}

References Get().

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◆ Get() [2/2]

TrackView & TrackView::Get ( Track track)
static

Definition at line 69 of file TrackView.cpp.

70{
71 return track.AttachedObjects::Get< TrackView >( key );
72}

References key.

Referenced by SetTrackVisualsCommand::ApplyInner(), TrackPanelResizeHandle::Cancel(), anonymous_namespace{TrackPanel.cpp}::Subgroup::Children(), anonymous_namespace{TrackPanel.cpp}::ChannelGroup::Children(), TrackPanelResizeHandle::Click(), LabelDefaultClickHandle::Click(), MinimizeButtonHandle::CommitChanges(), WaveTrackView::CopySelectedText(), LabelTrackView::CopyTo(), WaveTrackView::CopyTo(), CopyTo(), WaveTrackView::CutSelectedText(), ProjectAudioManager::DoRecord(), anonymous_namespace{ViewMenus.cpp}::DoZoomFitV(), TrackPanelResizeHandle::Drag(), anonymous_namespace{TrackPanel.cpp}::ChannelGroup::Draw(), anonymous_namespace{TrackPanel.cpp}::DrawTrackName(), anonymous_namespace{TrackPanel.cpp}::FindAdjustedChannelHeights(), anonymous_namespace{WaveTrackAffordanceControls.cpp}::FindAffordance(), SpectrumView::ForAll(), Get(), LabelTrackView::Get(), WaveTrackView::Get(), GetCumulativeHeight(), TrackPanel::GetFocusedCell(), GetTrackHeight(), NoteTrackAffordanceControls::HitTest(), WaveTrackAffordanceControls::HitTest(), TrackInfo::MinimizeSyncLockDrawFunction(), ViewActions::Handler::OnCollapseAllTracks(), ViewActions::Handler::OnExpandAllTracks(), WaveTrackMenuTable::OnMergeStereo(), AudacityPrintout::OnPrintPage(), ScreenshotBigDialog::OnShortTracks(), SelectHandle::TimerHandler::OnTimer(), TrackPanel::OnTrackMenu(), anonymous_namespace{TrackView.cpp}::TrackPositioner::OnUpdate(), WaveTrackView::PasteText(), SpectralDataManager::ProcessTracks(), TrackPanel::RefreshTrack(), WaveTrackView::SelectAllText(), ScreenshotBigDialog::SizeTracks(), WaveTrackMenuTable::SplitStereo(), MinimizeButtonHandle::Tip(), TrackPanelResizeHandle::TrackPanelResizeHandle(), and TrackPanel::UpdateTrackVRuler().

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◆ GetAffordanceControls()

std::shared_ptr< CommonTrackCell > TrackView::GetAffordanceControls ( )
virtual

Reimplemented in NoteTrackView, and WaveTrackView.

Definition at line 183 of file TrackView.cpp.

184{
185 return {};
186}

◆ GetChannelGroupHeight()

int TrackView::GetChannelGroupHeight ( const Track pTrack)
static

Definition at line 34 of file TrackView.cpp.

35{
36 return pTrack ? TrackList::Channels( pTrack ).sum( GetTrackHeight ) : 0;
37}
static auto Channels(TrackType *pTrack) -> TrackIterRange< TrackType >
Definition: Track.h:1539
static int GetTrackHeight(const Track *pTrack)
Definition: TrackView.cpp:29

References TrackList::Channels(), and GetTrackHeight().

Referenced by TrackSelectHandle::CalculateRearrangingThresholds(), and TrackPanel::VerticalScroll().

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◆ GetCumulativeHeight()

int TrackView::GetCumulativeHeight ( const Track pTrack)
static

Definition at line 39 of file TrackView.cpp.

40{
41 if ( !pTrack )
42 return 0;
43 auto &view = Get( *pTrack );
44 return view.GetCumulativeHeightBefore() + view.GetHeight();
45}

References Get().

Referenced by GetTotalHeight(), and anonymous_namespace{TrackView.cpp}::TrackPositioner::OnUpdate().

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◆ GetCumulativeHeightBefore()

int TrackView::GetCumulativeHeightBefore ( ) const
inline
Returns
cached sum of GetHeight() of all preceding tracks

Definition at line 56 of file TrackView.h.

56{ return mY; }

◆ GetExpandedHeight()

int TrackView::GetExpandedHeight ( ) const
inline
Returns
height of the track when expanded

See other comments for GetHeight

Definition at line 60 of file TrackView.h.

60{ return mHeight; }

Referenced by WriteXMLAttributes().

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◆ GetHeight()

int TrackView::GetHeight ( ) const
Returns
height of the track as it now appears, expanded or collapsed

Total "height" of channels of a track includes padding areas above and below it, and is pixel-accurate for the channel group. The "heights" of channels within a group determine the proportions of heights of the track data shown – but the actual total pixel heights may differ when other fixed-height adornments and paddings are added, according to other rules for allocation of height.

Definition at line 164 of file TrackView.cpp.

165{
166 if ( GetMinimized() )
167 return GetMinimizedHeight();
168
169 return mHeight;
170}
bool GetMinimized() const
Definition: TrackView.h:52
virtual int GetMinimizedHeight() const =0

References GetMinimized(), GetMinimizedHeight(), and mHeight.

Referenced by TrackPanelResizeHandle::Click(), anonymous_namespace{TrackPanel.cpp}::DrawTrackName(), and GetTrackHeight().

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◆ GetMinimized()

bool TrackView::GetMinimized ( ) const
inline

Definition at line 52 of file TrackView.h.

52{ return mMinimized; }

Referenced by WaveTrackView::BuildSubViews(), TrackPanelResizeHandle::Click(), MinimizeButtonHandle::CommitChanges(), anonymous_namespace{ViewMenus.cpp}::DoZoomFitV(), GetHeight(), TrackInfo::MinimizeSyncLockDrawFunction(), WaveTrackMenuTable::OnMergeStereo(), MinimizeButtonHandle::Tip(), and WriteXMLAttributes().

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◆ GetMinimizedHeight()

virtual int TrackView::GetMinimizedHeight ( ) const
pure virtual
Returns
height of the track when collapsed

See other comments for GetHeight

Implemented in CommonTrackView.

Referenced by GetHeight().

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◆ GetSubViews()

auto TrackView::GetSubViews ( const wxRect &  rect)
virtual

Reimplemented in WaveTrackView.

Definition at line 131 of file TrackView.cpp.

132{
133 return { { rect.GetTop(), shared_from_this() } };
134}

Referenced by anonymous_namespace{TrackPanel.cpp}::ChannelGroup::Children().

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◆ GetTotalHeight()

int TrackView::GetTotalHeight ( const TrackList list)
static

Definition at line 47 of file TrackView.cpp.

48{
49 return GetCumulativeHeight( *list.Any().rbegin() );
50}
auto Any() -> TrackIterRange< TrackType >
Definition: Track.h:1435
static int GetCumulativeHeight(const Track *pTrack)
Definition: TrackView.cpp:39

References TrackList::Any(), and GetCumulativeHeight().

Referenced by ProjectWindow::FixScrollbars(), and AudacityPrintout::OnPrintPage().

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◆ GetTrackHeight()

int TrackView::GetTrackHeight ( const Track pTrack)
static

Definition at line 29 of file TrackView.cpp.

30{
31 return pTrack ? Get( *pTrack ).GetHeight() : 0;
32}
int GetHeight() const
Definition: TrackView.cpp:164

References Get(), and GetHeight().

Referenced by anonymous_namespace{ViewMenus.cpp}::DoZoomFitV(), GetChannelGroupHeight(), TrackPanel::OnEnsureVisible(), and TrackPanel::RefreshTrack().

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◆ GetVRulerControls() [1/2]

std::shared_ptr< TrackVRulerControls > TrackView::GetVRulerControls ( )

Definition at line 146 of file TrackView.cpp.

147{
148 if (!mpVRulerControls)
149 // create on demand
151 return mpVRulerControls;
152}
std::shared_ptr< TrackVRulerControls > mpVRulerControls
Definition: TrackView.h:125
virtual std::shared_ptr< TrackVRulerControls > DoGetVRulerControls()=0

References DoGetVRulerControls(), and mpVRulerControls.

Referenced by TrackVRulerControls::Get(), and GetVRulerControls().

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◆ GetVRulerControls() [2/2]

std::shared_ptr< const TrackVRulerControls > TrackView::GetVRulerControls ( ) const

Definition at line 154 of file TrackView.cpp.

155{
156 return const_cast< TrackView* >( this )->GetVRulerControls();
157}
std::shared_ptr< TrackVRulerControls > GetVRulerControls()
Definition: TrackView.cpp:146

References GetVRulerControls().

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◆ HandleXMLAttribute()

bool TrackView::HandleXMLAttribute ( const std::string_view &  attr,
const XMLAttributeValueView valueView 
)
overridevirtual

Deserialize an attribute, returning true if recognized.

default recognizes no attributes, and returns false

Reimplemented from TrackAttachment.

Definition at line 110 of file TrackView.cpp.

112{
113 long nValue;
114
115 if (attr == "height" && valueView.TryGet(nValue)) {
116 // Bug 2803: Extreme values for track height (caused by integer overflow)
117 // will stall Audacity as it tries to create an enormous vertical ruler.
118 // So clamp to reasonable values.
119 nValue = std::max( 40l, std::min( nValue, 1000l ));
120 SetExpandedHeight(nValue);
121 return true;
122 }
123 else if ( attr == "minimized" && valueView.TryGet(nValue)) {
124 SetMinimized(nValue != 0);
125 return true;
126 }
127 else
128 return false;
129}
int min(int a, int b)
void SetMinimized(bool minimized)
Definition: TrackView.cpp:93
void SetExpandedHeight(int height)
Definition: TrackView.cpp:172
bool TryGet(bool &value) const noexcept
Try to get a boolean value from the view.

References min(), SetExpandedHeight(), SetMinimized(), and XMLAttributeValueView::TryGet().

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◆ IsSpectral()

bool TrackView::IsSpectral ( ) const
virtual

Reimplemented in SpectrumView.

Definition at line 136 of file TrackView.cpp.

137{
138 return false;
139}

Referenced by anonymous_namespace{BrushHandle.cpp}::isSpectralSelectionView(), and anonymous_namespace{SelectHandle.cpp}::isSpectralSelectionView().

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◆ operator=()

TrackView & TrackView::operator= ( const TrackView )
privatedelete

◆ SetCumulativeHeightBefore()

void TrackView::SetCumulativeHeightBefore ( int  y)
inline

Set cached value dependent on position within the track list.

Definition at line 78 of file TrackView.h.

78{ DoSetY( y ); }
void DoSetY(int y)
Definition: TrackView.cpp:159

◆ SetExpandedHeight()

void TrackView::SetExpandedHeight ( int  height)

Sets height for expanded state. Does not expand a track if it is now collapsed. See other comments for GetHeight

Definition at line 172 of file TrackView.cpp.

173{
174 DoSetHeight(h);
175 FindTrack()->AdjustPositions();
176}
std::shared_ptr< Track > FindTrack()

References DoSetHeight(), and CommonTrackPanelCell::FindTrack().

Referenced by SetTrackVisualsCommand::ApplyInner(), TrackPanelResizeHandle::Click(), anonymous_namespace{ViewMenus.cpp}::DoZoomFitV(), HandleXMLAttribute(), ScreenshotBigDialog::SizeTracks(), and WaveTrackMenuTable::SplitStereo().

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◆ SetMinimized()

void TrackView::SetMinimized ( bool  minimized)

Definition at line 93 of file TrackView.cpp.

94{
95 // Do special changes appropriate to subclass
96 DoSetMinimized(isMinimized);
97
98 // Update positions and heights starting from the first track in the group
99 auto leader = *TrackList::Channels( FindTrack().get() ).begin();
100 if ( leader )
101 leader->AdjustPositions();
102}
virtual void DoSetMinimized(bool isMinimized)
Definition: TrackView.cpp:141

References TrackList::Channels(), DoSetMinimized(), and CommonTrackPanelCell::FindTrack().

Referenced by MinimizeButtonHandle::CommitChanges(), ProjectAudioManager::DoRecord(), HandleXMLAttribute(), ViewActions::Handler::OnCollapseAllTracks(), and ViewActions::Handler::OnExpandAllTracks().

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◆ WriteXMLAttributes()

void TrackView::WriteXMLAttributes ( XMLWriter ) const
overridevirtual

Serialize persistent attributes.

default does nothing

Reimplemented from TrackAttachment.

Definition at line 104 of file TrackView.cpp.

105{
106 xmlFile.WriteAttr(wxT("height"), GetExpandedHeight());
107 xmlFile.WriteAttr(wxT("minimized"), GetMinimized());
108}
int GetExpandedHeight() const
Definition: TrackView.h:60

References GetExpandedHeight(), GetMinimized(), and XMLWriter::WriteAttr().

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Member Data Documentation

◆ mHeight

int TrackView::mHeight { DefaultHeight }
private

Definition at line 130 of file TrackView.h.

Referenced by CopyTo(), DoSetHeight(), and GetHeight().

◆ mMinimized

bool TrackView::mMinimized { false }
private

Definition at line 128 of file TrackView.h.

Referenced by CopyTo(), and DoSetMinimized().

◆ mpVRulerControls

std::shared_ptr<TrackVRulerControls> TrackView::mpVRulerControls
protected

Definition at line 125 of file TrackView.h.

Referenced by GetVRulerControls().

◆ mY

int TrackView::mY { 0 }
private

Definition at line 129 of file TrackView.h.

Referenced by DoSetY().


The documentation for this class was generated from the following files: