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