90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2018 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <widgets/stepped_slider.h>
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#include <wx/event.h>
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BEGIN_EVENT_TABLE( STEPPED_SLIDER, wxSlider )
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EVT_SCROLL( STEPPED_SLIDER::OnScroll )
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END_EVENT_TABLE()
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STEPPED_SLIDER::STEPPED_SLIDER( wxWindow* aParent, wxWindowID aId, int aValue, int aMinValue,
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int aMaxValue, const wxPoint& aPos, const wxSize& aSize,
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long aStyle, const wxValidator& aValidator,
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const wxString& aName ) :
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wxSlider( aParent, aId, aValue, aMinValue, aMaxValue, aPos, aSize,
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( aStyle | wxSL_AUTOTICKS | wxSL_MIN_MAX_LABELS ),
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aValidator,
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aName ),
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m_step( 1 )
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{}
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STEPPED_SLIDER::~STEPPED_SLIDER()
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{}
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void STEPPED_SLIDER::SetStep( int aSize )
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{
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wxASSERT( aSize > 0 );
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m_step = ( aSize > 0 ) ? aSize : 1;
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// configure pg up/down to increment by our steps
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SetPageSize( aSize );
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//configure arrows to increment by our steps
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SetLineSize( aSize );
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#ifdef __WXMSW__
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ClearTicks();
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if( aSize > 1 )
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SetTickFreq( aSize );
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#endif // __WXMSW__
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}
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int STEPPED_SLIDER::GetStep() const
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{
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return m_step;
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}
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void STEPPED_SLIDER::OnScroll( wxScrollEvent& aEvent )
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{
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// On Windows, moving the thumb can generate multiple subevents and wx is blindly
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// calling SetValue for each one before calling this event handler
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// We need to explicitly wait until the "final" sub event or else we end up fighting
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// wx on the value it is setting and extreme glitchlyness will occur
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// Not sure if other platforms have this issue
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#ifdef __WXMSW__
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if( aEvent.GetEventType() == wxEVT_SCROLL_CHANGED )
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{
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#endif // __WXMSW__
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const int value = GetValue();
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const int rounded = value - value % m_step;
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SetValue( rounded );
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#ifdef __WXMSW__
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}
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#endif // __WXMSW__
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aEvent.Skip();
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}
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