router_status_view_item.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2024 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 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 <gal/color4d.h>
#include <gal/graphics_abstraction_layer.h>
#include <kiplatform/ui.h>
#include <layer_ids.h>
#include <wx/settings.h>
 
#include "preview_items/preview_utils.h"
#include "router_status_view_item.h"
#include "gr_text.h"
 
using namespace KIGFX;
 
 
const BOX2I ROUTER_STATUS_VIEW_ITEM::ViewBBox() const
{
 BOX2I tmp;
 
 // this is an edit-time artefact; no reason to try and be smart with the bounding box
 // (besides, we can't tell the text extents without a view to know what the scale is)
 tmp.SetMaximum();
 return tmp;
}
 
void ROUTER_STATUS_VIEW_ITEM::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aLayers[0] = LAYER_UI_START;
 aLayers[1] = LAYER_UI_START + 1;
 aCount = 2;
}
 
void ROUTER_STATUS_VIEW_ITEM::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
{
 KIGFX::GAL* gal = aView->GetGAL();
 bool viewFlipped = gal->IsFlippedX();
 bool drawingDropShadows = ( aLayer == LAYER_UI_START );
 
 gal->Save();
 gal->Scale( { 1., 1. } );
 
 KIGFX::PREVIEW::TEXT_DIMS textDims = KIGFX::PREVIEW::GetConstantGlyphHeight( gal, -1 );
 KIGFX::PREVIEW::TEXT_DIMS hintDims = KIGFX::PREVIEW::GetConstantGlyphHeight( gal, -2 );
 KIFONT::FONT* font = KIFONT::FONT::GetFont();
 const KIFONT::METRICS& fontMetrics = KIFONT::METRICS::Default();
 TEXT_ATTRIBUTES textAttrs;
 int textWidth;
 
 textWidth = std::max( GRTextWidth( m_status, font, textDims.GlyphSize, textDims.StrokeWidth,
 false, false, fontMetrics ),
 GRTextWidth( m_hint, font, hintDims.GlyphSize, hintDims.StrokeWidth,
 false, false, fontMetrics ) );
 
 VECTOR2I margin( KiROUND( textDims.GlyphSize.x * 0.4 ), KiROUND( textDims.GlyphSize.y * 0.6 ) );
 VECTOR2I size( textWidth + margin.x, KiROUND( textDims.GlyphSize.y * 1.7 ) );
 VECTOR2I offset( margin.x * 5, -( size.y + margin.y * 5 ) );
 
 if( !m_hint.IsEmpty() )
 size.y += KiROUND( hintDims.GlyphSize.y * 1.2 );
 
 if( drawingDropShadows )
 {
 gal->SetIsFill( true );
 gal->SetIsStroke( true );
 gal->SetLineWidth( gal->GetScreenWorldMatrix().GetScale().x * 2 );
 gal->SetStrokeColor( wxSystemSettings::GetColour( wxSYS_COLOUR_BTNTEXT ) );
 KIGFX::COLOR4D bgColor( wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE ) );
 gal->SetFillColor( bgColor.WithAlpha( 0.9 ) );
 
 gal->DrawRectangle( GetPosition() + offset - margin,
 GetPosition() + offset + size + margin );
 gal->Restore();
 return;
 }
 
 COLOR4D bg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
 COLOR4D normal = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNTEXT );
 COLOR4D red;
 
 if( viewFlipped )
 textAttrs.m_Halign = GR_TEXT_H_ALIGN_RIGHT;
 else
 textAttrs.m_Halign = GR_TEXT_H_ALIGN_LEFT;
 
 gal->SetIsFill( false );
 gal->SetIsStroke( true );
 gal->SetStrokeColor( normal );
 textAttrs.m_Halign = GR_TEXT_H_ALIGN_LEFT;
 
 // Prevent text flipping when view is flipped
 if( gal->IsFlippedX() )
 {
 textAttrs.m_Mirrored = true;
 textAttrs.m_Halign = GR_TEXT_H_ALIGN_RIGHT;
 }
 
 textAttrs.m_Size = textDims.GlyphSize;
 textAttrs.m_StrokeWidth = textDims.StrokeWidth;
 
 VECTOR2I textPos = GetPosition() + offset + margin;
 font->Draw( gal, m_status, textPos, textAttrs, KIFONT::METRICS::Default() );
 
 if( !m_hint.IsEmpty() )
 {
 textAttrs.m_Size = hintDims.GlyphSize;
 textAttrs.m_StrokeWidth = hintDims.StrokeWidth;
 
 textPos.y += KiROUND( textDims.GlyphSize.y * 1.6 );
 font->Draw( gal, m_hint, textPos, textAttrs, KIFONT::METRICS::Default() );
 }
 
 gal->Restore();
}