mirror of
https://github.com/cookiengineer/audacity
synced 2025-08-16 08:34:10 +02:00
Addresses meter accessibility mentioned in bug #33
And also corrects the missing focus rectangle display on the toolbar buttons on Linux.
This commit is contained in:
lllucius
parent
3a23757e2e
commit
8bef14df36
@ -221,7 +221,8 @@ void AButton::Init(wxWindow * parent,
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mAlternateIdx = 0;
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mButtonIsFocused = false;
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mFocusRect = GetRect().Deflate( 3, 3 );
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mFocusRect = GetClientRect().Deflate( 3, 3 );
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mForceFocusRect = false;
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SetSizeHints(mImages[0].mArr[0].GetMinSize(),
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mImages[0].mArr[0].GetMaxSize());
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@ -284,6 +285,7 @@ void AButton::FollowModifierKeys()
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void AButton::SetFocusRect(wxRect & r)
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{
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mFocusRect = r;
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mForceFocusRect = true;
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}
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AButton::AButtonState AButton::GetState()
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@ -337,7 +339,7 @@ void AButton::OnPaint(wxPaintEvent & WXUNUSED(event))
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mImages[mAlternateIdx].mArr[buttonState].Draw(dc, GetClientRect());
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#if defined(__WXMSW__)
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#if defined(__WXMSW__) || defined(__WXGTK__)
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if( mButtonIsFocused )
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{
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AColor::DrawFocus( dc, mFocusRect );
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@ -352,7 +354,10 @@ void AButton::OnErase(wxEraseEvent & WXUNUSED(event))
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void AButton::OnSize(wxSizeEvent & WXUNUSED(event))
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{
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mFocusRect = GetRect().Deflate( 3, 3 );
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if (!mForceFocusRect)
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{
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mFocusRect = GetClientRect().Deflate( 3, 3 );
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}
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Refresh(false);
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}
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@ -159,6 +159,7 @@ class AButton: public wxWindow {
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std::vector<ImageArr> mImages;
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wxRect mFocusRect;
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bool mForceFocusRect;
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std::auto_ptr<Listener> mListener;
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@ -192,6 +192,8 @@ BEGIN_EVENT_TABLE(Meter, wxPanel)
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EVT_MOUSE_EVENTS(Meter::OnMouse)
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EVT_CONTEXT_MENU(Meter::OnContext)
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EVT_KEY_DOWN(Meter::OnKeyDown)
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EVT_SET_FOCUS(Meter::OnSetFocus)
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EVT_KILL_FOCUS(Meter::OnKillFocus)
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EVT_ERASE_BACKGROUND(Meter::OnErase)
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EVT_PAINT(Meter::OnPaint)
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EVT_SIZE(Meter::OnSize)
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@ -234,6 +236,12 @@ Meter::Meter(AudacityProject *project,
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{
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mStyle = mDesiredStyle;
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mIsFocused = false;
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#if wxUSE_ACCESSIBILITY
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SetAccessible(new MeterAx(this));
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#endif
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UpdatePrefs();
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wxColour backgroundColour =
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@ -622,6 +630,14 @@ void Meter::OnPaint(wxPaintEvent & WXUNUSED(event))
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}
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}
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#if defined(__WXMSW__) || defined(__WXGTK__)
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if (mIsFocused)
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{
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wxRect r = mIconRect;
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AColor::DrawFocus(destDC, r.Inflate(1, 1));
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}
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#endif
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delete paintDC;
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}
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@ -692,11 +708,20 @@ void Meter::OnMouse(wxMouseEvent &evt)
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}
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void Meter::OnContext(wxContextMenuEvent &evt)
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{
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if (mStyle != MixerTrackCluster) // MixerTrackCluster style has no menu.
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{
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ShowMenu(wxPoint(mIconRect.x + 1, mIconRect.y + mIconRect.height + 1));
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}
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else
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{
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evt.Skip();
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}
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}
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void Meter::OnKeyDown(wxKeyEvent &evt)
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{
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if (mStyle != MixerTrackCluster) // MixerTrackCluster style has no menu.
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{
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int code = evt.GetKeyCode();
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if (code == WXK_WINDOWS_MENU || code == WXK_MENU)
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@ -708,6 +733,23 @@ void Meter::OnKeyDown(wxKeyEvent &evt)
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evt.Skip();
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}
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}
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else
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{
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evt.Skip();
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}
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}
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void Meter::OnSetFocus(wxFocusEvent & WXUNUSED(evt))
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{
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mIsFocused = true;
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Refresh(false);
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}
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void Meter::OnKillFocus(wxFocusEvent & WXUNUSED(evt))
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{
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mIsFocused = false;
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Refresh(false);
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}
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void Meter::SetStyle(Style newStyle)
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{
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@ -1437,6 +1479,14 @@ void Meter::RepaintBarsNow()
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}
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#endif
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#if defined(__WXMSW__) || defined(__WXGTK__)
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if (mIsFocused)
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{
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wxRect r = mIconRect;
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AColor::DrawFocus(dc, r.Inflate(1, 1));
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}
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#endif
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// Compact style requires redrawing ruler
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if (mStyle == HorizontalStereoCompact || mStyle == VerticalStereoCompact)
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{
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@ -1977,3 +2027,242 @@ wxString Meter::Key(const wxString & key) const
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return wxT("/Meter/Output/") + key;
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}
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#if wxUSE_ACCESSIBILITY
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MeterAx::MeterAx(wxWindow *window):
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wxWindowAccessible(window)
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{
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}
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MeterAx::~MeterAx()
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{
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}
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// Performs the default action. childId is 0 (the action for this object)
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// or > 0 (the action for a child).
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// Return wxACC_NOT_SUPPORTED if there is no default action for this
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// window (e.g. an edit control).
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wxAccStatus MeterAx::DoDefaultAction(int WXUNUSED(childId))
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{
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Meter *m = wxDynamicCast(GetWindow(), Meter);
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if (m && m->mIsInput)
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{
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m->StartMonitoring();
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}
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return wxACC_OK;
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}
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// Retrieves the address of an IDispatch interface for the specified child.
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// All objects must support this property.
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wxAccStatus MeterAx::GetChild(int childId, wxAccessible** child)
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{
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if (childId == wxACC_SELF)
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{
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*child = this;
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}
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else
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{
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*child = NULL;
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}
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return wxACC_OK;
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}
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// Gets the number of children.
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wxAccStatus MeterAx::GetChildCount(int* childCount)
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{
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*childCount = 0;
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return wxACC_OK;
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}
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// Gets the default action for this object (0) or > 0 (the action for
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// a child). Return wxACC_OK even if there is no action. actionName
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// is the action, or the empty string if there is no action. The
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// retrieved string describes the action that is performed on an
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// object, not what the object does as a result. For example, a
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// toolbar button that prints a document has a default action of
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// "Press" rather than "Prints the current document."
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wxAccStatus MeterAx::GetDefaultAction(int WXUNUSED(childId), wxString* actionName)
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{
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*actionName = _("Press");
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return wxACC_OK;
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}
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// Returns the description for this object or a child.
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wxAccStatus MeterAx::GetDescription(int WXUNUSED(childId), wxString *description)
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{
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Meter *m = wxDynamicCast(GetWindow(), Meter);
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if (m->mMonitoring)
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{
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*description += wxString::Format(_(" Monitoring "));
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}
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else if (m->mActive)
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{
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*description += wxString::Format(_(" Active "));
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}
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float peak = 0.;
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for (int i = 0; i < m->mNumBars; i++)
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{
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peak = wxMax(peak, m->mBar[i].peakPeakHold);
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}
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if (m->mDB)
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{
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*description += wxString::Format(_(" Peak %.2f dB"), (peak * m->mDBRange) - m->mDBRange);
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}
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else
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{
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*description += wxString::Format(_(" Peak %.2f "), peak);
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}
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if (m->IsClipping())
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{
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*description += wxString::Format(_(" Clipped "));
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}
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return wxACC_OK;
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}
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// Gets the window with the keyboard focus.
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// If childId is 0 and child is NULL, no object in
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// this subhierarchy has the focus.
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// If this object has the focus, child should be 'this'.
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wxAccStatus MeterAx::GetFocus(int* childId, wxAccessible** child)
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{
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*childId = 0;
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*child = this;
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return wxACC_OK;
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}
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// Returns help text for this object or a child, similar to tooltip text.
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wxAccStatus MeterAx::GetHelpText(int WXUNUSED(childId), wxString *helpText)
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{
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#if wxUSE_TOOLTIPS // Not available in wxX11
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Meter *m = wxDynamicCast(GetWindow(), Meter);
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wxToolTip *pTip = m->GetToolTip();
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if (pTip)
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{
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*helpText = pTip->GetTip();
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}
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return wxACC_OK;
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#else
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helpText->Clear();
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return wxACC_NOT_SUPPORTED;
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#endif
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}
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// Returns the keyboard shortcut for this object or child.
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// Return e.g. ALT+K
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wxAccStatus MeterAx::GetKeyboardShortcut(int WXUNUSED(childId), wxString *shortcut)
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{
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shortcut->Clear();
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return wxACC_OK;
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}
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// Returns the rectangle for this object (id = 0) or a child element (id > 0).
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// rect is in screen coordinates.
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wxAccStatus MeterAx::GetLocation(wxRect & rect, int WXUNUSED(elementId))
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{
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Meter *m = wxDynamicCast(GetWindow(), Meter);
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rect = m->GetRect();
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rect.SetPosition(m->GetParent()->ClientToScreen(rect.GetPosition()));
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return wxACC_OK;
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}
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// Gets the name of the specified object.
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wxAccStatus MeterAx::GetName(int WXUNUSED(childId), wxString* name)
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{
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Meter *m = wxDynamicCast(GetWindow(), Meter);
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*name = m->GetName();
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if (name->IsEmpty())
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{
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*name = m->GetLabel();
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}
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if (name->IsEmpty())
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{
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*name = _("Meter");
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}
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#if 0
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if (m->mMonitoring)
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{
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*name += wxString::Format(_(" Monitoring "));
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}
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else
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{
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*name += wxString::Format(_(" Active "));
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}
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*name += wxString::Format(_(" Max Peak %f "), m->GetMaxPeak());
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if (m->IsClipping())
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{
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*name += wxString::Format(_(" Clipped "));
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}
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#endif
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return wxACC_OK;
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}
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// Returns a role constant.
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wxAccStatus MeterAx::GetRole(int WXUNUSED(childId), wxAccRole* role)
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{
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*role = wxROLE_SYSTEM_DIAGRAM;
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return wxACC_OK;
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}
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// Gets a variant representing the selected children
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// of this object.
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// Acceptable values:
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// - a null variant (IsNull() returns TRUE)
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// - a list variant (GetType() == wxT("list"))
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// - an integer representing the selected child element,
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// or 0 if this object is selected (GetType() == wxT("long"))
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// - a "void*" pointer to a wxAccessible child object
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wxAccStatus MeterAx::GetSelections(wxVariant * WXUNUSED(selections))
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{
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return wxACC_NOT_IMPLEMENTED;
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}
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// Returns a state constant.
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wxAccStatus MeterAx::GetState(int WXUNUSED(childId), long* state)
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{
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Meter *m = wxDynamicCast( GetWindow(), Meter );
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*state = wxACC_STATE_SYSTEM_FOCUSABLE;
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if (m->mActive)
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{
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*state |= wxACC_STATE_SYSTEM_BUSY;
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}
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// Do not use mButtonIsFocused is not set until after this method
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// is called.
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*state |= ( m == wxWindow::FindFocus() ? wxACC_STATE_SYSTEM_FOCUSED : 0 );
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return wxACC_OK;
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}
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// Returns a localized string representing the value for the object
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// or child.
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wxAccStatus MeterAx::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
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{
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return wxACC_NOT_SUPPORTED;
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}
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#endif
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@ -85,6 +85,8 @@ class MeterUpdateQueue
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MeterUpdateMsg *mBuffer;
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};
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class MeterAx;
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class Meter : public wxPanel
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{
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DECLARE_DYNAMIC_CLASS(Meter)
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@ -185,6 +187,8 @@ class Meter : public wxPanel
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void OnMouse(wxMouseEvent &evt);
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void OnKeyDown(wxKeyEvent &evt);
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void OnContext(wxContextMenuEvent &evt);
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void OnSetFocus(wxFocusEvent &evt);
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void OnKillFocus(wxFocusEvent &evt);
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void OnAudioIOStatus(wxCommandEvent &evt);
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@ -263,7 +267,89 @@ class Meter : public wxPanel
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wxString mLeftText;
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wxString mRightText;
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bool mIsFocused;
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wxRect mFocusRect;
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friend class MeterAx;
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DECLARE_EVENT_TABLE()
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};
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#if wxUSE_ACCESSIBILITY
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class MeterAx: public wxWindowAccessible
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{
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public:
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MeterAx(wxWindow * window);
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virtual ~ MeterAx();
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// Performs the default action. childId is 0 (the action for this object)
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// or > 0 (the action for a child).
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// Return wxACC_NOT_SUPPORTED if there is no default action for this
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// window (e.g. an edit control).
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virtual wxAccStatus DoDefaultAction(int childId);
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// Retrieves the address of an IDispatch interface for the specified child.
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// All objects must support this property.
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virtual wxAccStatus GetChild(int childId, wxAccessible** child);
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// Gets the number of children.
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virtual wxAccStatus GetChildCount(int* childCount);
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// Gets the default action for this object (0) or > 0 (the action for a child).
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// Return wxACC_OK even if there is no action. actionName is the action, or the empty
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// string if there is no action.
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// The retrieved string describes the action that is performed on an object,
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// not what the object does as a result. For example, a toolbar button that prints
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// a document has a default action of "Press" rather than "Prints the current document."
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virtual wxAccStatus GetDefaultAction(int childId, wxString *actionName);
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// Returns the description for this object or a child.
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virtual wxAccStatus GetDescription(int childId, wxString *description);
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// Gets the window with the keyboard focus.
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// If childId is 0 and child is NULL, no object in
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// this subhierarchy has the focus.
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// If this object has the focus, child should be 'this'.
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virtual wxAccStatus GetFocus(int *childId, wxAccessible **child);
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// Returns help text for this object or a child, similar to tooltip text.
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virtual wxAccStatus GetHelpText(int childId, wxString *helpText);
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// Returns the keyboard shortcut for this object or child.
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// Return e.g. ALT+K
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virtual wxAccStatus GetKeyboardShortcut(int childId, wxString *shortcut);
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// Returns the rectangle for this object (id = 0) or a child element (id > 0).
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// rect is in screen coordinates.
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virtual wxAccStatus GetLocation(wxRect& rect, int elementId);
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// Gets the name of the specified object.
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virtual wxAccStatus GetName(int childId, wxString *name);
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// Returns a role constant.
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virtual wxAccStatus GetRole(int childId, wxAccRole *role);
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// Gets a variant representing the selected children
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// of this object.
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// Acceptable values:
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// - a null variant (IsNull() returns TRUE)
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// - a list variant (GetType() == wxT("list"))
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// - an integer representing the selected child element,
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// or 0 if this object is selected (GetType() == wxT("long"))
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// - a "void*" pointer to a wxAccessible child object
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virtual wxAccStatus GetSelections(wxVariant *selections);
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// Returns a state constant.
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virtual wxAccStatus GetState(int childId, long* state);
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// Returns a localized string representing the value for the object
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// or child.
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virtual wxAccStatus GetValue(int childId, wxString* strValue);
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};
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#endif // wxUSE_ACCESSIBILITY
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#endif // __AUDACITY_METER__
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