Get rid of bloated bitmap buttons on wxWidgets 3.2.
This commit is contained in:
Jeff Young
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/*
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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) 2016 Anil8735(https://stackoverflow.com/users/3659387/anil8753)
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* from https://stackoverflow.com/a/37274011
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* Copyright (C) 2020-2022 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 <widgets/std_bitmap_button.h>
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#include <wx/button.h>
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#include <wx/dcclient.h>
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#include <wx/dcmemory.h>
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#include <wx/menu.h>
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#include <wx/renderer.h>
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#include <wx/settings.h>
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#include <kiplatform/ui.h>
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STD_BITMAP_BUTTON::STD_BITMAP_BUTTON( wxWindow* aParent, wxWindowID aId,
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const wxBitmap& aDummyBitmap, const wxPoint& aPos,
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const wxSize& aSize, int aStyle ) :
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wxPanel( aParent, aId, aPos, aSize, aStyle, "StdBitmapButton" )
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{
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if( aSize == wxDefaultSize )
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{
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wxSize defaultSize = wxButton::GetDefaultSize();
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SetMinSize( wxSize( defaultSize.GetWidth() + 1, defaultSize.GetHeight() + 1 ) );
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}
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Bind( wxEVT_PAINT, &STD_BITMAP_BUTTON::OnPaint, this );
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Bind( wxEVT_LEFT_UP, &STD_BITMAP_BUTTON::OnLeftButtonUp, this );
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Bind( wxEVT_LEFT_DOWN, &STD_BITMAP_BUTTON::OnLeftButtonDown, this );
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Bind( wxEVT_KILL_FOCUS, &STD_BITMAP_BUTTON::OnKillFocus, this );
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Bind( wxEVT_LEAVE_WINDOW, &STD_BITMAP_BUTTON::OnMouseLeave, this );
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Bind( wxEVT_ENTER_WINDOW, &STD_BITMAP_BUTTON::OnMouseEnter, this );
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Bind( wxEVT_SYS_COLOUR_CHANGED,
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wxSysColourChangedEventHandler( STD_BITMAP_BUTTON::onThemeChanged ),
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this );
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}
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STD_BITMAP_BUTTON::~STD_BITMAP_BUTTON()
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{
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}
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void STD_BITMAP_BUTTON::onThemeChanged( wxSysColourChangedEvent &aEvent )
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{
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Refresh();
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}
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void STD_BITMAP_BUTTON::SetBitmap( const wxBitmap& aBmp )
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{
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m_bitmap = aBmp;
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SetMinSize( wxSize( m_bitmap.GetWidth() + 8, m_bitmap.GetHeight() + 8 ) );
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}
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void STD_BITMAP_BUTTON::OnKillFocus( wxFocusEvent& aEvent )
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{
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m_stateButton = wxCONTROL_CURRENT;
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Refresh();
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aEvent.Skip();
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}
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void STD_BITMAP_BUTTON::OnMouseLeave( wxMouseEvent& aEvent )
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{
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m_stateButton = 0;
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Refresh();
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aEvent.Skip();
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}
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void STD_BITMAP_BUTTON::OnMouseEnter( wxMouseEvent& aEvent )
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{
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m_stateButton = wxCONTROL_CURRENT;
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Refresh();
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aEvent.Skip();
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}
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void STD_BITMAP_BUTTON::OnLeftButtonUp( wxMouseEvent& aEvent )
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{
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m_stateButton = 0;
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Refresh();
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wxEvtHandler* pEventHandler = GetEventHandler();
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wxASSERT( pEventHandler );
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pEventHandler->CallAfter(
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[=]()
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{
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wxCommandEvent evt( wxEVT_BUTTON, GetId() );
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evt.SetEventObject( this );
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GetEventHandler()->ProcessEvent( evt );
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} );
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aEvent.Skip();
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}
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void STD_BITMAP_BUTTON::OnLeftButtonDown( wxMouseEvent& aEvent )
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{
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m_stateButton = wxCONTROL_PRESSED;
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Refresh();
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aEvent.Skip();
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}
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void STD_BITMAP_BUTTON::OnPaint( wxPaintEvent& WXUNUSED( aEvent ) )
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{
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wxPaintDC dc( this );
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wxSize size = GetSize();
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#ifdef __WXMAC__
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auto drawBackground =
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[&]( wxRect aRect )
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{
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// wxWidgets doesn't have much support for dark mode on OSX; none of the
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// system colours return the right values, nor does wxRendererNative draw
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// the borders correctly. So we add some empirically chosen hacks here.
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wxColor fg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNTEXT );
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wxColor bg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
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aRect.width += 1;
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aRect.height += 1;
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if( KIPLATFORM::UI::IsDarkTheme() )
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{
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bg = bg.ChangeLightness( m_bIsEnable ? 130 : 120 );
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dc.SetBrush( bg );
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dc.SetPen( bg );
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}
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else
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{
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bg = bg.ChangeLightness( m_bIsEnable ? 200 : 160 );
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dc.SetBrush( bg );
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fg = fg.ChangeLightness( 180 );
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dc.SetPen( fg );
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}
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dc.DrawRoundedRectangle( aRect, aRect.height / 4 );
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};
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#endif
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wxRect r1;
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r1.x = 0;
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r1.y = 0;
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r1.width = size.GetWidth();
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r1.height = size.GetHeight();
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#ifdef __WXMAC__
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// wxRendereNative doesn't handle dark mode on OSX.
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drawBackground( r1 );
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#else
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r1.width += 2;
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wxRendererNative::Get().DrawPushButton( this, dc, r1, m_stateButton );
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#endif
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SetForegroundColour( m_bIsEnable ? wxSystemSettings::GetColour( wxSYS_COLOUR_BTNTEXT )
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: wxSystemSettings::GetColour( wxSYS_COLOUR_GRAYTEXT ) );
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if( m_bitmap.IsOk() )
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{
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wxMemoryDC mdc( m_bitmap );
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r1.x = ( size.GetWidth() - m_bitmap.GetWidth() ) / 2;
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if( r1.x < 0 )
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r1.x = 0;
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r1.y += ( size.GetHeight() - m_bitmap.GetHeight() ) / 2;
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dc.Blit( wxPoint( r1.x, r1.y ), m_bitmap.GetSize(), &mdc, wxPoint( 0, 0 ), wxCOPY, true );
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}
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}
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bool STD_BITMAP_BUTTON::Enable( bool aEnable )
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{
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m_bIsEnable = aEnable;
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wxPanel::Enable( m_bIsEnable );
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if( m_bIsEnable )
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m_stateButton = 0;
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else
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m_stateButton = wxCONTROL_DISABLED;
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Refresh();
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return aEnable;
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}
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