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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2017 Kicad Developers, see change_log.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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <preview_items/preview_utils.h>
#include <gal/graphics_abstraction_layer.h>
#include <base_units.h>
#include <pcb_painter.h>
#include <view/view.h>
double KIGFX::PREVIEW::PreviewOverlayDeemphAlpha( bool aDeemph )
{
return aDeemph ? 0.5 : 1.0;
}
static wxString getDimensionUnit( EDA_UNITS_T aUnits )
{
switch( aUnits )
{
case INCHES:
return _( "\"" );
case MILLIMETRES:
return _( "mm" );
case DEGREES:
return _( "deg" );
case UNSCALED_UNITS:
break;
// no default: handle all cases
}
return wxEmptyString;
}
static wxString formatPreviewDimension( double aVal, EDA_UNITS_T aUnits )
{
int precision = 4;
// show a sane precision for the preview, which doesn't need to
// be accurate down to the nanometre
switch( aUnits )
{
case MILLIMETRES:
precision = 2; // 10um
break;
case INCHES:
precision = 4; // 1mil
break;
case DEGREES:
precision = 1; // 0.1deg (limit of formats anyway)
break;
case UNSCALED_UNITS:
break;
}
const wxString fmtStr = wxString::Format( "%%.%df", precision );
wxString str = wxString::Format( fmtStr, To_User_Unit( aUnits, aVal ) );
const wxString symbol = getDimensionUnit( aUnits );
if( symbol.size() )
str << " " << symbol;
return str;
}
wxString KIGFX::PREVIEW::DimensionLabel( const wxString& prefix,
double aVal, EDA_UNITS_T aUnits )
{
wxString str;
if( prefix.size() )
str << prefix << ": ";
str << formatPreviewDimension( aVal, aUnits );
return str;
}
void KIGFX::PREVIEW::SetConstantGlyphHeight( KIGFX::GAL& aGal, double aHeight )
{
aHeight /= aGal.GetWorldScale();
auto glyphSize = aGal.GetGlyphSize();
glyphSize = glyphSize * ( aHeight / glyphSize.y );
aGal.SetGlyphSize( glyphSize );
}
void KIGFX::PREVIEW::DrawTextNextToCursor( KIGFX::VIEW* aView,
const VECTOR2D& aCursorPos, const VECTOR2D& aTextQuadrant,
const std::vector<wxString>& aStrings )
{
auto gal = aView->GetGAL();
auto glyphSize = gal->GetGlyphSize();
auto rs = static_cast<KIGFX::PCB_RENDER_SETTINGS*>( aView->GetPainter()->GetSettings() );
const auto lineSpace = glyphSize.y * 0.2;
auto linePitch = glyphSize.y + lineSpace;
// radius string goes on the right of the cursor centre line
// with a small horizontal offset (enough to keep clear of a
// system cursor if present)
auto textPos = aCursorPos;
// if the text goes above the cursor, shift it up
if( aTextQuadrant.y > 0 )
{
textPos.y -= linePitch * ( aStrings.size() + 1 );
}
if( aTextQuadrant.x < 0 )
{
gal->SetHorizontalJustify( GR_TEXT_HJUSTIFY_LEFT );
textPos.x += 15.0 / gal->GetWorldScale();
}
else
{
gal->SetHorizontalJustify( GR_TEXT_HJUSTIFY_RIGHT );
textPos.x -= 15.0 / gal->GetWorldScale();
}
gal->SetStrokeColor( rs->GetLayerColor( LAYER_AUX_ITEMS ).WithAlpha(
PreviewOverlayDeemphAlpha( true ) ) );
gal->SetIsFill( false );
// write strings top-to-bottom
for( const auto& str : aStrings )
{
textPos.y += linePitch;
gal->BitmapText( str, textPos, 0.0 );
}
}
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