516 lines
15 KiB
C++
516 lines
15 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) 2016 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2004-2017 KiCad Developers, see change_log.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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/**
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* @file eda_text.cpp
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* @brief Implementation of base KiCad text object.
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*/
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#include <eda_text.h>
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#include <draw_graphic_text.h>
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#include <eda_rect.h>
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#include <macros.h>
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#include <trigo.h> // RotatePoint
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#include <class_drawpanel.h> // EDA_DRAW_PANEL
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#include <basic_gal.h>
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#include <base_units.h>
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#include <convert_to_biu.h>
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EDA_TEXT::EDA_TEXT( const wxString& text ) :
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m_Text( text ),
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m_e( 1<<TE_VISIBLE )
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{
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int sz = Mils2iu( DEFAULT_SIZE_TEXT );
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SetTextSize( wxSize( sz, sz ) );
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}
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EDA_TEXT::~EDA_TEXT()
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{
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}
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void EDA_TEXT::SetEffects( const EDA_TEXT& aSrc )
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{
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m_e = aSrc.m_e;
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}
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void EDA_TEXT::SwapEffects( EDA_TEXT& aTradingPartner )
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{
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std::swap( m_e, aTradingPartner.m_e );
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}
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int EDA_TEXT::LenSize( const wxString& aLine, int aThickness ) const
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{
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basic_gal.SetFontItalic( IsItalic() );
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basic_gal.SetFontBold( IsBold() );
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basic_gal.SetLineWidth( aThickness );
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basic_gal.SetGlyphSize( VECTOR2D( GetTextSize() ) );
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VECTOR2D tsize = basic_gal.GetTextLineSize( aLine );
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return KiROUND( tsize.x );
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}
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wxString EDA_TEXT::ShortenedShownText() const
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{
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wxString tmp = GetShownText();
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tmp.Replace( wxT( "\n" ), wxT( " " ) );
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tmp.Replace( wxT( "\r" ), wxT( " " ) );
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tmp.Replace( wxT( "\t" ), wxT( " " ) );
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if( tmp.Length() > 15 )
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tmp = tmp.Left( 12 ) + wxT( "..." );
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return tmp;
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}
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int EDA_TEXT::GetInterline( int aTextThickness ) const
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{
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int thickness = aTextThickness <= 0 ? GetThickness() : aTextThickness;
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return KiROUND( KIGFX::STROKE_FONT::GetInterline( GetTextHeight(), thickness ) );
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}
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EDA_RECT EDA_TEXT::GetTextBox( int aLine, int aThickness, bool aInvertY ) const
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{
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EDA_RECT rect;
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wxArrayString strings;
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wxString text = GetShownText();
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int thickness = ( aThickness < 0 ) ? GetThickness() : aThickness;
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int linecount = 1;
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bool hasOverBar = false; // true if the first line of text as an overbar
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if( IsMultilineAllowed() )
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{
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wxStringSplit( text, strings, '\n' );
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if( strings.GetCount() ) // GetCount() == 0 for void strings
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{
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if( aLine >= 0 && (aLine < (int)strings.GetCount()) )
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text = strings.Item( aLine );
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else
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text = strings.Item( 0 );
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linecount = strings.GetCount();
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}
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}
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// Search for overbar symbol. Only text is scanned,
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// because only this line can change the bounding box
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for( unsigned ii = 1; ii < text.size(); ii++ )
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{
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if( text[ii-1] == '~' && text[ii] != '~' )
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{
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hasOverBar = true;
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break;
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}
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}
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// calculate the H and V size
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int dx = KiROUND( basic_gal.GetStrokeFont().ComputeStringBoundaryLimits(
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text, VECTOR2D( GetTextSize() ), double( thickness ) ).x );
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int dy = GetInterline( thickness );
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// Creates bounding box (rectangle) for an horizontal
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// and left and top justified text. the bounding box will be moved later
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// according to the actual text options
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wxSize textsize = wxSize( dx, dy );
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wxPoint pos = GetTextPos();
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if( aInvertY )
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pos.y = -pos.y;
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rect.SetOrigin( pos );
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// The bbox vertical size returned by GetInterline( aThickness )
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// includes letters like j and y and ] + interval between lines.
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// The interval below the last line is not usefull, and we can use its half value
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// as vertical margin above the text
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// the full interval is roughly GetTextHeight() * 0.4 - aThickness/2
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rect.Move( wxPoint( 0, thickness/4 - KiROUND( GetTextHeight() * 0.22 ) ) );
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if( hasOverBar )
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{ // A overbar adds an extra size to the text
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// Height from the base line text of chars like [ or {
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double curr_height = GetTextHeight() * 1.15;
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int extra_height = KiROUND(
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basic_gal.GetStrokeFont().ComputeOverbarVerticalPosition( GetTextHeight(), thickness ) - curr_height );
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extra_height += thickness/2;
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textsize.y += extra_height;
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rect.Move( wxPoint( 0, -extra_height ) );
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}
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// for multiline texts and aLine < 0, merge all rectangles
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// ( if aLine < 0, we want the full text bounding box )
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if( IsMultilineAllowed() && aLine < 0 )
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{
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for( unsigned ii = 1; ii < strings.GetCount(); ii++ )
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{
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text = strings.Item( ii );
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dx = KiROUND( basic_gal.GetStrokeFont().ComputeStringBoundaryLimits(
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text, VECTOR2D( GetTextSize() ), double( thickness ) ).x );
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textsize.x = std::max( textsize.x, dx );
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textsize.y += dy;
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}
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}
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rect.SetSize( textsize );
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/* Now, calculate the rect origin, according to text justification
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* At this point the rectangle origin is the text origin (m_Pos).
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* This is true only for left and top text justified texts (using top to bottom Y axis
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* orientation). and must be recalculated for others justifications
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* also, note the V justification is relative to the first line
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*/
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switch( GetHorizJustify() )
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{
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case GR_TEXT_HJUSTIFY_LEFT:
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if( IsMirrored() )
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rect.SetX( rect.GetX() - rect.GetWidth() );
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break;
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case GR_TEXT_HJUSTIFY_CENTER:
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rect.SetX( rect.GetX() - (rect.GetWidth() / 2) );
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break;
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case GR_TEXT_HJUSTIFY_RIGHT:
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if( !IsMirrored() )
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rect.SetX( rect.GetX() - rect.GetWidth() );
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break;
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}
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dy = GetTextHeight() + thickness;
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switch( GetVertJustify() )
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{
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case GR_TEXT_VJUSTIFY_TOP:
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break;
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case GR_TEXT_VJUSTIFY_CENTER:
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rect.SetY( rect.GetY() - ( dy / 2) );
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break;
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case GR_TEXT_VJUSTIFY_BOTTOM:
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rect.SetY( rect.GetY() - dy );
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break;
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}
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if( linecount > 1 )
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{
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int yoffset;
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linecount -= 1;
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switch( GetVertJustify() )
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{
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case GR_TEXT_VJUSTIFY_TOP:
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break;
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case GR_TEXT_VJUSTIFY_CENTER:
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yoffset = linecount * GetInterline() / 2;
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rect.SetY( rect.GetY() - yoffset );
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break;
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case GR_TEXT_VJUSTIFY_BOTTOM:
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yoffset = linecount * GetInterline( aThickness );
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rect.SetY( rect.GetY() - yoffset );
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break;
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}
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}
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rect.Normalize(); // Make h and v sizes always >= 0
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return rect;
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}
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bool EDA_TEXT::TextHitTest( const wxPoint& aPoint, int aAccuracy ) const
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{
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EDA_RECT rect = GetTextBox( -1 ); // Get the full text area.
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wxPoint location = aPoint;
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rect.Inflate( aAccuracy );
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RotatePoint( &location, GetTextPos(), -GetTextAngle() );
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return rect.Contains( location );
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}
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bool EDA_TEXT::TextHitTest( const EDA_RECT& aRect, bool aContains, int aAccuracy ) const
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{
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EDA_RECT rect = aRect;
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rect.Inflate( aAccuracy );
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if( aContains )
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return rect.Contains( GetTextBox( -1 ) );
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return rect.Intersects( GetTextBox( -1 ), GetTextAngle() );
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}
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void EDA_TEXT::Draw( EDA_RECT* aClipBox, wxDC* aDC, const wxPoint& aOffset,
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COLOR4D aColor, GR_DRAWMODE aDrawMode,
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EDA_DRAW_MODE_T aFillMode, COLOR4D aAnchor_color )
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{
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if( IsMultilineAllowed() )
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{
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std::vector<wxPoint> positions;
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wxArrayString strings;
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wxStringSplit( GetShownText(), strings, '\n' );
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positions.reserve( strings.Count() );
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GetPositionsOfLinesOfMultilineText( positions, strings.Count() );
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for( unsigned ii = 0; ii < strings.Count(); ii++ )
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{
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wxString& txt = strings.Item( ii );
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drawOneLineOfText( aClipBox, aDC, aOffset, aColor,
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aDrawMode, aFillMode, txt, positions[ii] );
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}
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}
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else
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drawOneLineOfText( aClipBox, aDC, aOffset, aColor,
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aDrawMode, aFillMode, GetShownText(), GetTextPos() );
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// Draw text anchor, if requested
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if( aAnchor_color != COLOR4D::UNSPECIFIED )
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{
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GRDrawAnchor( aClipBox, aDC,
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GetTextPos().x + aOffset.x, GetTextPos().y + aOffset.y,
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DIM_ANCRE_TEXTE, aAnchor_color );
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}
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}
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void EDA_TEXT::GetPositionsOfLinesOfMultilineText(
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std::vector<wxPoint>& aPositions, int aLineCount ) const
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{
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wxPoint pos = GetTextPos(); // Position of first line of the
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// multiline text according to
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// the center of the multiline text block
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wxPoint offset; // Offset to next line.
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offset.y = GetInterline();
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if( aLineCount > 1 )
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{
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switch( GetVertJustify() )
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{
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case GR_TEXT_VJUSTIFY_TOP:
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break;
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case GR_TEXT_VJUSTIFY_CENTER:
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pos.y -= ( aLineCount - 1 ) * offset.y / 2;
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break;
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case GR_TEXT_VJUSTIFY_BOTTOM:
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pos.y -= ( aLineCount - 1 ) * offset.y;
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break;
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}
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}
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// Rotate the position of the first line
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// around the center of the multiline text block
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RotatePoint( &pos, GetTextPos(), GetTextAngle() );
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// Rotate the offset lines to increase happened in the right direction
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RotatePoint( &offset, GetTextAngle() );
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for( int ii = 0; ii < aLineCount; ii++ )
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{
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aPositions.push_back( pos );
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pos += offset;
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}
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}
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void EDA_TEXT::drawOneLineOfText( EDA_RECT* aClipBox, wxDC* aDC,
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const wxPoint& aOffset, COLOR4D aColor,
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GR_DRAWMODE aDrawMode, EDA_DRAW_MODE_T aFillMode,
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const wxString& aText, const wxPoint &aPos )
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{
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int width = GetThickness();
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if( aDrawMode != UNSPECIFIED_DRAWMODE )
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GRSetDrawMode( aDC, aDrawMode );
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if( aFillMode == SKETCH )
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width = -width;
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wxSize size = GetTextSize();
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if( IsMirrored() )
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size.x = -size.x;
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DrawGraphicText( aClipBox, aDC, aOffset + aPos, aColor, aText, GetTextAngle(), size,
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GetHorizJustify(), GetVertJustify(),
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width, IsItalic(), IsBold() );
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}
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wxString EDA_TEXT::GetTextStyleName()
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{
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int style = 0;
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if( IsItalic() )
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style = 1;
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if( IsBold() )
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style += 2;
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wxString stylemsg[4] = {
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_("Normal"),
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_("Italic"),
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_("Bold"),
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_("Bold+Italic")
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};
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return stylemsg[style];
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}
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bool EDA_TEXT::IsDefaultFormatting() const
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{
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return ( IsVisible()
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&& !IsMirrored()
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&& GetHorizJustify() == GR_TEXT_HJUSTIFY_CENTER
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&& GetVertJustify() == GR_TEXT_VJUSTIFY_CENTER
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&& GetThickness() == 0
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&& !IsItalic()
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&& !IsBold()
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&& !IsMultilineAllowed()
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);
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}
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void EDA_TEXT::Format( OUTPUTFORMATTER* aFormatter, int aNestLevel, int aControlBits ) const
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{
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#ifndef GERBVIEW // Gerbview does not use EDA_TEXT::Format
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// and does not define FormatInternalUnits, used here
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// however this function should exist
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aFormatter->Print( aNestLevel + 1, "(effects" );
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// Text size
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aFormatter->Print( 0, " (font" );
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aFormatter->Print( 0, " (size %s %s)",
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FormatInternalUnits( GetTextHeight() ).c_str(),
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FormatInternalUnits( GetTextWidth() ).c_str() );
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if( GetThickness() )
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aFormatter->Print( 0, " (thickness %s)", FormatInternalUnits( GetThickness() ).c_str() );
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if( IsBold() )
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aFormatter->Print( 0, " bold" );
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if( IsItalic() )
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aFormatter->Print( 0, " italic" );
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aFormatter->Print( 0, ")"); // (font
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if( IsMirrored() ||
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GetHorizJustify() != GR_TEXT_HJUSTIFY_CENTER ||
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GetVertJustify() != GR_TEXT_VJUSTIFY_CENTER )
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{
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aFormatter->Print( 0, " (justify");
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if( GetHorizJustify() != GR_TEXT_HJUSTIFY_CENTER )
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aFormatter->Print( 0, (GetHorizJustify() == GR_TEXT_HJUSTIFY_LEFT) ? " left" : " right" );
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if( GetVertJustify() != GR_TEXT_VJUSTIFY_CENTER )
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aFormatter->Print( 0, (GetVertJustify() == GR_TEXT_VJUSTIFY_TOP) ? " top" : " bottom" );
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if( IsMirrored() )
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aFormatter->Print( 0, " mirror" );
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aFormatter->Print( 0, ")" ); // (justify
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}
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if( !(aControlBits & CTL_OMIT_HIDE) && !IsVisible() )
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aFormatter->Print( 0, " hide" );
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aFormatter->Print( 0, ")\n" ); // (justify
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#endif
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}
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// Convert the text shape to a list of segment
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// each segment is stored as 2 wxPoints: its starting point and its ending point
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// we are using DrawGraphicText to create the segments.
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// and therefore a call-back function is needed
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// This is a call back function, used by DrawGraphicText to put each segment in buffer
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static void addTextSegmToBuffer( int x0, int y0, int xf, int yf, void* aData )
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{
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std::vector<wxPoint>* cornerBuffer = static_cast<std::vector<wxPoint>*>( aData );
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cornerBuffer->push_back( wxPoint( x0, y0 ) );
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cornerBuffer->push_back( wxPoint( xf, yf ) );
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}
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void EDA_TEXT::TransformTextShapeToSegmentList( std::vector<wxPoint>& aCornerBuffer ) const
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{
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wxSize size = GetTextSize();
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if( IsMirrored() )
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size.x = -size.x;
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COLOR4D color = COLOR4D::BLACK; // not actually used, but needed by DrawGraphicText
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if( IsMultilineAllowed() )
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{
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wxArrayString strings_list;
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wxStringSplit( GetShownText(), strings_list, wxChar('\n') );
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std::vector<wxPoint> positions;
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positions.reserve( strings_list.Count() );
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GetPositionsOfLinesOfMultilineText( positions,strings_list.Count() );
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for( unsigned ii = 0; ii < strings_list.Count(); ii++ )
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{
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wxString txt = strings_list.Item( ii );
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DrawGraphicText( NULL, NULL, positions[ii], color,
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txt, GetTextAngle(), size,
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GetHorizJustify(), GetVertJustify(),
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GetThickness(), IsItalic(),
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true, addTextSegmToBuffer, &aCornerBuffer );
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}
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}
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else
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{
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DrawGraphicText( NULL, NULL, GetTextPos(), color,
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GetText(), GetTextAngle(), size,
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GetHorizJustify(), GetVertJustify(),
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GetThickness(), IsItalic(),
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true, addTextSegmToBuffer, &aCornerBuffer );
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}
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}
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