136 lines
5.1 KiB
C++
136 lines
5.1 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) 2009-2014 Jerry Jacobs
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* Copyright (C) 1992-2022 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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#ifndef GR_TEXT_H
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#define GR_TEXT_H
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#include <eda_item.h>
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#include <font/text_attributes.h>
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namespace KIGFX
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{
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class COLOR4D;
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}
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/**
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* Minimum dimension in pixel for drawing/no drawing a text used in Pcbnew to decide to
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* draw (or not) some texts ( like net names on pads/tracks ).
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*
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* When a text height is smaller than MIN_TEXT_SIZE, it is not drawn by Pcbnew.
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*/
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#define MIN_TEXT_SIZE 5
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/* Absolute minimum dimension in pixel to draw a text as text or a line
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* When a text height is smaller than MIN_DRAWABLE_TEXT_SIZE,
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* it is drawn, but like a line by the draw text function
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*/
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#define MIN_DRAWABLE_TEXT_SIZE 3
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class PLOTTER;
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/**
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* Pen width should not allow characters to become cluttered up in their own fatness. Normal
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* text is normally around 15% the fontsize, and bold text around 20%. So we set a hard limit
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* at 25%, and a secondary limit for non-decorative text that must be readable at small sizes
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* at 18%.
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*
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* @param aPenSize the pen size to clamp.
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* @param aSize the char size (height or width, or its wxSize).
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* @param aBold true if text accept bold pen size.
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* @return the max pen size allowed.
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*/
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int Clamp_Text_PenSize( int aPenSize, int aSize, bool aStrict = false );
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float Clamp_Text_PenSize( float aPenSize, int aSize, bool aStrict = false );
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int Clamp_Text_PenSize( int aPenSize, const VECTOR2I& aSize, bool aStrict = false );
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/**
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* @param aTextSize the char size (height or width).
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* @return the "best" value for a pen size to draw/plot a bold text.
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*/
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int GetPenSizeForBold( int aTextSize );
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int GetPenSizeForBold( const wxSize& aTextSize );
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/**
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* @param aTextSize = the char size (height or width).
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* @return the "best" value for a pen size to draw/plot a non-bold text.
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*/
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int GetPenSizeForNormal( int aTextSize );
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int GetPenSizeForNormal( const wxSize& aTextSize );
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inline void InferBold( TEXT_ATTRIBUTES* aAttrs )
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{
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int penSize( aAttrs->m_StrokeWidth );
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wxSize textSize( aAttrs->m_Size.x, aAttrs->m_Size.y );
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aAttrs->m_Bold = abs( penSize - GetPenSizeForBold( textSize ) )
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< abs( penSize - GetPenSizeForNormal( textSize ) );
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}
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/**
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* Returns the margin for knocking out text.
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*
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* Note that this is not a perfect calculation as fonts (especially outline fonts) vary greatly
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* in how well ascender and descender heights are enforced.
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*/
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inline int GetKnockoutTextMargin( const VECTOR2I& aSize, int aThickness )
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{
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return std::max( KiROUND( aThickness / 2 ), KiROUND( aSize.y / 7.0 ) );
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}
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/**
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* The full X size is GraphicTextWidth + the thickness of graphic lines.
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*
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* @return the X size of the graphic text.
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*/
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int GraphicTextWidth( const wxString& aText, KIFONT::FONT* aFont, const VECTOR2I& aSize,
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int aThickness, bool aBold, bool aItalic );
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/**
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* Print a graphic text through wxDC.
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*
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* @param aDC is the current Device Context.
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* @param aPos is the text position (according to h_justify, v_justify).
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* @param aColor is the text color.
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* @param aText is the text to draw.
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* @param aOrient is the angle.
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* @param aSize is the text size (size.x or size.y can be < 0 for mirrored texts).
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* @param aH_justify is the horizontal justification (Left, center, right).
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* @param aV_justify is the vertical justification (bottom, center, top).
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* @param aWidth is the line width (pen width) (use default width if aWidth = 0).
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* if width < 0 : draw segments in sketch mode, width = abs(width)
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* Use a value min(aSize.x, aSize.y) / 5 for a bold text.
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* @param aItalic is the true to simulate an italic font.
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* @param aBold use true to use a bold font. Useful only with default width value (aWidth = 0).
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* @param aFont is the font to use, or nullptr for the KiCad stroke font
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*/
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void GRPrintText( wxDC* aDC, const VECTOR2I& aPos, const KIGFX::COLOR4D& aColor,
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const wxString& aText, const EDA_ANGLE& aOrient, const VECTOR2I& aSize,
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enum GR_TEXT_H_ALIGN_T aH_justify, enum GR_TEXT_V_ALIGN_T aV_justify,
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int aWidth, bool aItalic, bool aBold, KIFONT::FONT* aFont );
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#endif /* GR_TEXT_H */
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