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COLOR_SWATCH, INDICATOR_ICON: DPI-independent scaling

This commit is contained in:
Chris Pavlina 2018-01-07 09:25:09 -07:00
parent 504e7a4a51
commit 445fc0000f
3 changed files with 44 additions and 17 deletions
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25
common/widgets/color_swatch.cpp
View File

@ -1,7 +1,7 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
* Copyright (C) 2017 KiCad Developers, see AUTHORS.TXT for contributors.
* Copyright (C) 2017-2018 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
@ -31,8 +31,7 @@ wxDEFINE_EVENT(COLOR_SWATCH_CHANGED, wxCommandEvent);
using KIGFX::COLOR4D;
const static int SWATCH_SIZE_X = 14;
const static int SWATCH_SIZE_Y = 12;
const static wxSize SWATCH_SIZE_DU( 8, 6 );
// See selcolor.cpp:
extern COLOR4D DisplayColorFrame( wxWindow* aParent, COLOR4D aOldColor );
@ -40,10 +39,13 @@ extern COLOR4D DisplayColorFrame( wxWindow* aParent, COLOR4D aOldColor );
/**
* Make a simple color swatch bitmap
*
* @param aWindow - window used as context for device-independent size
*/
static wxBitmap makeBitmap( COLOR4D aColor, COLOR4D aBackground )
static wxBitmap makeBitmap( COLOR4D aColor, COLOR4D aBackground, wxWindow *aWindow )
{
wxBitmap bitmap( SWATCH_SIZE_X, SWATCH_SIZE_Y );
wxSize size( aWindow->ConvertDialogToPixels( SWATCH_SIZE_DU ) );
wxBitmap bitmap( size );
wxBrush brush;
wxMemoryDC iconDC;
@ -52,11 +54,11 @@ static wxBitmap makeBitmap( COLOR4D aColor, COLOR4D aBackground )
brush.SetStyle( wxBRUSHSTYLE_SOLID );
brush.SetColour( aBackground.WithAlpha(1.0).ToColour() );
iconDC.SetBrush( brush );
iconDC.DrawRectangle( 0, 0, SWATCH_SIZE_X, SWATCH_SIZE_Y );
iconDC.DrawRectangle( 0, 0, size.x, size.y );
brush.SetColour( aColor.ToColour() );
iconDC.SetBrush( brush );
iconDC.DrawRectangle( 0, 0, SWATCH_SIZE_X, SWATCH_SIZE_Y );
iconDC.DrawRectangle( 0, 0, size.x, size.y );
return bitmap;
}
@ -69,8 +71,7 @@ static wxBitmap makeBitmap( COLOR4D aColor, COLOR4D aBackground )
static std::unique_ptr<wxStaticBitmap> makeColorSwatch(
wxWindow* aParent, COLOR4D aColor, COLOR4D aBackground, int aID )
{
// construct a bitmap of the right color and make the swatch from it
wxBitmap bitmap = makeBitmap( aColor, aBackground );
wxBitmap bitmap = makeBitmap( aColor, aBackground, aParent );
auto ret = std::make_unique<wxStaticBitmap>( aParent, aID, bitmap );
return ret;
@ -129,7 +130,7 @@ void COLOR_SWATCH::SetSwatchColor( COLOR4D aColor, bool sendEvent )
{
m_color = aColor;
wxBitmap bm = makeBitmap( m_color, m_background );
wxBitmap bm = makeBitmap( m_color, m_background, GetParent() );
m_swatch->SetBitmap( bm );
if( sendEvent )
@ -142,7 +143,7 @@ void COLOR_SWATCH::SetSwatchColor( COLOR4D aColor, bool sendEvent )
void COLOR_SWATCH::SetSwatchBackground( COLOR4D aBackground )
{
m_background = aBackground;
wxBitmap bm = makeBitmap( m_color, m_background );
wxBitmap bm = makeBitmap( m_color, m_background, (wxWindow*) this );
m_swatch->SetBitmap( bm );
}
@ -171,7 +172,7 @@ void COLOR_SWATCH::GetNewSwatchColor()
{
m_color = newColor;
wxBitmap bm = makeBitmap( newColor, m_background );
wxBitmap bm = makeBitmap( newColor, m_background, (wxWindow*) this );
m_swatch->SetBitmap( bm );
sendSwatchChangeEvent( *this );

29
common/widgets/indicator_icon.cpp
View File

@ -1,7 +1,7 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
* Copyright (C) 2017 KiCad Developers, see AUTHORS.TXT for contributors.
* Copyright (C) 2017-2018 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
@ -35,10 +35,11 @@ INDICATOR_ICON::INDICATOR_ICON( wxWindow* aParent,
SetSizer( sizer );
const wxBitmap& initBitmap = m_iconProvider.GetIndicatorIcon( m_currentId );
wxBitmap scaled = ScaledIcon( initBitmap );
m_bitmap = new wxStaticBitmap( this, aID,
initBitmap, wxDefaultPosition,
initBitmap.GetSize() );
scaled, wxDefaultPosition,
scaled.GetSize() );
sizer->Add( m_bitmap, 0, 0 );
@ -57,7 +58,7 @@ void INDICATOR_ICON::SetIndicatorState( ICON_ID aIconId )
m_currentId = aIconId;
m_bitmap->SetBitmap( m_iconProvider.GetIndicatorIcon( m_currentId ) );
m_bitmap->SetBitmap( ScaledIcon( m_iconProvider.GetIndicatorIcon( m_currentId ) ) );
}
@ -66,6 +67,26 @@ INDICATOR_ICON::ICON_ID INDICATOR_ICON::GetIndicatorState() const
return m_currentId;
}
// Uses wxImage::Rescale to provide a bitmap scaled to a fixed size relative to
// the system font. This doesn't work particularly well in the general case
// and so is not an answer to DPI-independent scaling of e.g. toolbar icons,
// but it gives perfectly acceptable results for the simple icons embedded in
// this file.
wxBitmap INDICATOR_ICON::ScaledIcon( wxBitmap const& aSource ) const
{
int dest_height = ConvertDialogToPixels( wxSize( 0, 4 ) ).y;
wxSize source_size = aSource.GetSize();
double scale = (double) dest_height / (double) source_size.y;
wxImage source = aSource.ConvertToImage();
source.Rescale( scale * source_size.x, scale * source_size.y, wxIMAGE_QUALITY_HIGH );
wxBitmap dest( source );
return dest;
}
// ====================================================================
// Common icon providers

7
include/widgets/indicator_icon.h
View File

@ -1,7 +1,7 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 KiCad Developers, see AUTHORS.txt for contributors.
* Copyright (C) 2017-2018 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
@ -97,6 +97,11 @@ public:
private:
/**
* Scale an icon to one character width.
*/
wxBitmap ScaledIcon( wxBitmap const& aSource ) const;
///> An class that delivers icons for the indictor (currently just
///> uses a default implementation).
ICON_PROVIDER& m_iconProvider;