134 lines
3.8 KiB
C++
134 lines
3.8 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) 2020 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <eda_view_switcher.h>
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#ifdef __WXGTK__
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#define LIST_BOX_H_PADDING 20
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#define LIST_BOX_V_PADDING 8
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#else
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#define LIST_BOX_H_PADDING 10
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#define LIST_BOX_V_PADDING 5
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#endif
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EDA_VIEW_SWITCHER::EDA_VIEW_SWITCHER( wxWindow* aParent, const wxArrayString& aItems ) :
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EDA_VIEW_SWITCHER_BASE( aParent ),
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m_tabState( true ),
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m_receivingEvents( false )
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{
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m_listBox->InsertItems( aItems, 0 );
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m_listBox->SetSelection( std::min( 1, (int) m_listBox->GetCount() - 1 ) );
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int width = 0;
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int height = 0;
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for( const wxString& item : aItems )
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{
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wxSize extents = m_listBox->GetTextExtent( item );
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width = std::max( width, extents.x );
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height += extents.y + LIST_BOX_V_PADDING;
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}
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m_listBox->SetMinSize( wxSize( width + LIST_BOX_H_PADDING, height ) );
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SetInitialFocus( m_listBox );
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// this line fixes an issue on Linux Ubuntu using Unity (dialog not shown),
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// and works fine on all systems
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GetSizer()->Fit( this );
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Centre();
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}
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bool EDA_VIEW_SWITCHER::Show( bool aShow )
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{
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if( !aShow )
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m_receivingEvents = false;
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bool ret = DIALOG_SHIM::Show( aShow );
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if( aShow )
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m_receivingEvents = true;
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return ret;
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}
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// OK, this is *really* annoying, but wxWidgets doesn't give us key-down events while the
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// control key is being held down. So we can't use OnKeyDown() or OnCharHook() and instead
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// must rely on watching key states in TryBefore().
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//
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// Just checking the state of the tab key is tempting, but then we'll think it's been hit
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// several times when it's actually just a key-down followed by a redraw or idle event.
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//
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// So we have to keep a state machine of the tab key.
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//
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bool EDA_VIEW_SWITCHER::TryBefore( wxEvent& aEvent )
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{
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if( !m_receivingEvents )
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{
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return DIALOG_SHIM::TryBefore( aEvent );
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}
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// Check for tab key leading edge
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if( !m_tabState && wxGetKeyState( WXK_TAB ) )
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{
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m_tabState = true;
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int idx = m_listBox->GetSelection();
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if( wxGetKeyState( WXK_SHIFT ) )
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{
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if( --idx < 0 )
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m_listBox->SetSelection( (int) m_listBox->GetCount() - 1 );
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else
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m_listBox->SetSelection( idx );
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}
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else
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{
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if( ++idx >= (int) m_listBox->GetCount() )
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m_listBox->SetSelection( 0 );
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else
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m_listBox->SetSelection( idx );
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}
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return true;
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}
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// Check for tab key trailing edge
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if( m_tabState && !wxGetKeyState( WXK_TAB ) )
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{
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m_tabState = false;
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}
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// Check for control key trailing edge
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if( !wxGetKeyState( WXK_RAW_CONTROL ) )
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{
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EndModal( wxID_OK );
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}
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return DIALOG_SHIM::TryBefore( aEvent );
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}
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