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							388 lines
						
					
					
						
							13 KiB
						
					
					
				
			
		
		
		
			
			
			
		
		
	
	
							388 lines
						
					
					
						
							13 KiB
						
					
					
				
								/*
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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) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
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								 * Copyright (C) 1992-2017 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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								/**
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								 * @file class_dimension.h
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								 * @brief DIMENSION class definition.
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								 */
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								#ifndef DIMENSION_H_
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								#define DIMENSION_H_
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								#include <class_board_item.h>
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								#include <class_pcb_text.h>
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								#include <geometry/seg.h>
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								class LINE_READER;
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								class TEXTE_PCB;
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								class MSG_PANEL_ITEM;
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								/// How to display the units in a dimension's text
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								enum class DIM_UNITS_FORMAT
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								{
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								    NO_SUFFIX,      // 1234.0
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								    BARE_SUFFIX,    // 1234.0 mm
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								    PAREN_SUFFIX    // 1234.0 (mm)
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								};
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								/// Where to place the text on a dimension
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								enum class DIM_TEXT_POSITION
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								{
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								    OUTSIDE,    ///< Text appears outside the dimension line (default)
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								    INLINE,     ///< Text appears in line with the dimension line
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								    MANUAL      ///< Text placement is manually set by the user
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								};
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								/**
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								 * Used for storing the units selection in the file because EDA_UNITS alone doesn't cut it
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								 */
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								enum class DIM_UNITS_MODE
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								{
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								    INCHES,
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								    MILS,
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								    MILLIMETRES,
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								    AUTOMATIC
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								};
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								/**
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								 * Abstract dimension API
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								 *
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								 * Some notes about dimension nomenclature:
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								 *
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								 * - "feature points" are the points being measured by the dimension.  For an example, the start
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								 *   and end points of a line to be measured.  These are the first points picked when drawing a
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								 *   new dimension.  Dimensions can have one or more feature points: linear dimensions (the only
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								 *   type supported in KiCad 5 and earlier) have two feature points; leader dimensions have one;
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								 *   and ordinate dimensions can have in theory an unlimited number of feature points.
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								 *
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								 * - "feature lines" are lines that coincide with feature points.  Not all dimension types have
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								 *   feature lines.  The actual start and end of feature lines is calculated from dimension style
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								 *   properties (offset from feature point to start of feature line, height of crossbar, and height
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								 *   of feature line past crossbar, for example in linear dimensions)
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								 *
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								 * - "crossbar" refers to the perpendicular line (usually with arrows at each end) between feature
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								 *   lines on linear dimensions
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								 */
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								class DIMENSION : public BOARD_ITEM
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								{
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								public:
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								    DIMENSION( BOARD_ITEM* aParent );
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								    void SetParent( EDA_ITEM* aParent ) override;
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								    /**
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								     * The dimension's origin is the first feature point for the dimension.  Every dimension has
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								     * one or more feature points, so every dimension has at least an origin.
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								     * @return the origin point of this dimension
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								     */
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								    virtual const wxPoint& GetStart() const { return m_start; }
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								    virtual void SetStart( const wxPoint& aPoint );
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								    virtual const wxPoint& GetEnd() const { return m_end; }
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								    virtual void SetEnd( const wxPoint& aPoint );
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								    // These deal with the text position
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								    wxPoint GetPosition() const override;
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								    void SetPosition( const wxPoint& aPos ) override;
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								    bool GetOverrideTextEnabled() const { return m_overrideTextEnabled; }
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								    void SetOverrideTextEnabled( bool aOverride ) { m_overrideTextEnabled = aOverride; }
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								    wxString GetOverrideText() const { return m_valueString; }
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								    void SetOverrideText( const wxString& aValue ) { m_valueString = aValue; }
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								    int GetMeasuredValue() const { return m_measuredValue; }
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								    /**
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								     * @return the dimension value, rendered with precision / zero suppression but no units, etc
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								     */
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								    wxString GetValueText() const;
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								    /**
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								     * Updates the dimension's cached text and geometry
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								     */
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								    void Update()
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								    {
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								        updateGeometry();
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								        updateText();
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								    }
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								    wxString GetPrefix() const { return m_prefix; }
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								    void SetPrefix( const wxString& aPrefix );
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								    wxString GetSuffix() const { return m_suffix; }
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								    void SetSuffix( const wxString& aSuffix );
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								    void GetUnits( EDA_UNITS& aUnits, bool& aUseMils ) const
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								    {
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								        aUnits = m_units;
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								        aUseMils = m_useMils;
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								    }
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								    void SetUnits( EDA_UNITS aUnits, bool aUseMils );
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								    DIM_UNITS_MODE GetUnitsMode() const;
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								    void SetUnitsMode( DIM_UNITS_MODE aMode );
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								    void SetAutoUnits( bool aAuto = true ) { m_autoUnits = aAuto; }
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								    DIM_UNITS_FORMAT GetUnitsFormat() const { return m_unitsFormat; }
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								    void SetUnitsFormat( const DIM_UNITS_FORMAT aFormat ) { m_unitsFormat = aFormat; }
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								    int GetPrecision() const { return m_precision; }
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								    void SetPrecision( int aPrecision ) { m_precision = aPrecision; }
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								    bool GetSuppressZeroes() const { return m_suppressZeroes; }
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								    void SetSuppressZeroes( bool aSuppress ) { m_suppressZeroes = aSuppress; }
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								    bool GetKeepTextAligned() const { return m_keepTextAligned; }
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								    void SetKeepTextAligned( bool aKeepAligned ) { m_keepTextAligned = aKeepAligned; }
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								    void SetTextPositionMode( DIM_TEXT_POSITION aMode ) { m_textPosition = aMode; }
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								    DIM_TEXT_POSITION GetTextPositionMode() const { return m_textPosition; }
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								    int GetArrowLength() const { return m_arrowLength; }
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								    void SetArrowLength( int aLength ) { m_arrowLength = aLength; }
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								    void SetExtensionOffset( int aOffset ) { m_extensionOffset = aOffset; }
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								    int GetExtensionOffset() const { return m_extensionOffset; }
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								    int GetLineThickness() const        { return m_lineThickness; }
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								    void SetLineThickness( int aWidth ) { m_lineThickness = aWidth; }
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								    void SetLayer( PCB_LAYER_ID aLayer ) override;
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								    void SetTextSize( const wxSize& aTextSize )
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								    {
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								        m_text.SetTextSize( aTextSize );
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								    }
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								    /**
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								     * Sets the override text - has no effect if m_overrideValue == false
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								     * @param aNewText is the text to use as the value
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								     */
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								    void           SetText( const wxString& aNewText );
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								    /**
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								     * Retrieves the value text or override text, not including prefix or suffix
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								     * @return the value portion of the dimension text (either overridden or not)
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								     */
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								    const wxString GetText() const;
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								    TEXTE_PCB&     Text() { return m_text; }
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								    TEXTE_PCB&     Text() const { return *( const_cast<TEXTE_PCB*> ( &m_text ) ); }
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								    /**
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								     * @return a list of line segments that make up this dimension (for drawing, plotting, etc)
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								     */
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								    const std::vector<SEG>& GetLines() const { return m_lines; }
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								    // BOARD_ITEM overrides
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								    void Move( const wxPoint& offset ) override;
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								    void Rotate( const wxPoint& aRotCentre, double aAngle ) override;
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								    void Flip( const wxPoint& aCentre, bool aFlipLeftRight ) override;
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								    /**
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								     * Mirror the Dimension , relative to a given horizontal axis
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								     * the text is not mirrored. only its position (and angle) is mirrored
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								     * the layer is not changed
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								     * @param axis_pos : vertical axis position
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								     */
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								    void Mirror( const wxPoint& axis_pos, bool aMirrorLeftRight = false );
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								    void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
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								    bool HitTest( const wxPoint& aPosition, int aAccuracy ) const override;
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								    bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
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								    const EDA_RECT GetBoundingBox() const override;
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								    wxString GetSelectMenuText( EDA_UNITS aUnits ) const override;
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								    BITMAP_DEF GetMenuImage() const override;
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								    virtual const BOX2I ViewBBox() const override;
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								#if defined(DEBUG)
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								    virtual void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
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								#endif
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								protected:
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								    /**
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								     * Updates the cached geometry of the dimension after changing any of its properties
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								     */
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								    virtual void updateGeometry() = 0;
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								    /**
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								     * Updates the text field value from the current geometry (called by updateGeometry normally)
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								     */
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								    virtual void updateText();
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								    // Value format
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								    bool              m_overrideTextEnabled;   ///< Manually specify the displayed measurement value
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								    wxString          m_valueString;     ///< Displayed value when m_overrideValue = true
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								    wxString          m_prefix;          ///< String prepended to the value
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								    wxString          m_suffix;          ///< String appended to the value
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								    EDA_UNITS         m_units;           ///< 0 = inches, 1 = mm
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								    bool              m_useMils;         ///< If inches, use mils.
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								    bool              m_autoUnits;       ///< If true, follow the currently selected UI units
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								    DIM_UNITS_FORMAT  m_unitsFormat;     ///< How to render the units suffix
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								    int               m_precision;       ///< Number of digits to display after decimal
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								    bool              m_suppressZeroes;  ///< Suppress trailing zeroes
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								    // Geometry
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								    int               m_lineThickness;    ///< Thickness used for all graphics in the dimension
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								    int               m_arrowLength;      ///< Length of arrow shapes
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								    int               m_extensionOffset;  ///< Distance from feature points to extension line start
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								    DIM_TEXT_POSITION m_textPosition;     ///< How to position the text
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								    bool              m_keepTextAligned;  ///< Calculate text orientation to match dimension
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								    // Internal
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								    TEXTE_PCB         m_text;             ///< The actual text object
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								    int               m_measuredValue;    ///< value of PCB dimensions
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								    wxPoint           m_start;
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								    wxPoint           m_end;
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								    std::vector<SEG>  m_lines;            ///< Internal cache of drawn lines
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								};
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								/**
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								 * For better understanding of the points that make a dimension:
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								 *
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								 * Note: historically KiCad called extension lines "feature lines", and also note that what we
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								 * call the "crossbar line" here is more commonly called the "dimension line"
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								 *
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								 *              Start (feature point 1)         End (feature point 2)
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								 *                |                              |
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								 *                |   <-- extension lines -->    |
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								 *                |                              |
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								 *                |  m_arrowG2F      m_arrowD2F  |
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								 *                | /                          \ |
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								 * Crossbar start |/_______crossbar line________\| Crossbar end
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								 *                |\           m_text           /|
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								 *                | \                          / |
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								 *                |  m_arrowG1F      m_arrowD1F  |
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								 *                |                              |
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								 *                m_featureLineGF  m_featureLineDF
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								 */
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								/**
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								 * An aligned dimension measures the distance between two feature points.  It has a crossbar
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								 * (dimension line) that stays parallel with the vector between the feature points.
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								 *
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								 * The height (distance from features to crossbar) can be set directly, or set by manipulating the
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								 * crossbar start or end point (with the point editor).
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								 */
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								class ALIGNED_DIMENSION : public DIMENSION
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								{
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								    // Geometry
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								    int          m_height;           ///< Perpendicular distance from features to crossbar
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								    int          m_extensionHeight;  ///< Length of extension lines past the crossbar
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								    wxPoint      m_crossBarStart;    ///< Crossbar start control point
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								    wxPoint      m_crossBarEnd;      ///< Crossbar end control point
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								    static constexpr float s_arrowAngle = 27.5;
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								public:
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								    ALIGNED_DIMENSION( BOARD_ITEM* aParent );
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								    // Do not create a copy constructor & operator=.
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								    // The ones generated by the compiler are adequate.
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								    ~ALIGNED_DIMENSION() = default;
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								    static inline bool ClassOf( const EDA_ITEM* aItem )
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								    {
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								        return aItem && PCB_DIMENSION_T == aItem->Type();
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								    }
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								    bool IsType( const KICAD_T aScanTypes[] ) const override
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								    {
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								        if( BOARD_ITEM::IsType( aScanTypes ) )
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								            return true;
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								        for( const KICAD_T* p = aScanTypes; *p != EOT; ++p )
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								        {
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								            if( *p == PCB_LOCATE_GRAPHIC_T )
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								                return true;
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								        }
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								        return false;
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								    }
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								    EDA_ITEM* Clone() const override;
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								    virtual void SwapData( BOARD_ITEM* aImage ) override;
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								    const wxPoint& GetCrossbarStart() const { return m_crossBarStart; }
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								    const wxPoint& GetCrossbarEnd() const { return m_crossBarEnd; }
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								    /**
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								     * Sets the distance from the feature points to the crossbar line
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								     * @param aHeight is the new height.
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								     */
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								    void SetHeight( int aHeight );
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								    int GetHeight() const {  return m_height; }
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						|
								
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								    /**
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								     * Updates stored height basing on points coordinates.
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								     * @param aCrossbarStart is the start point of the crossbar
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								     */
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								    void UpdateHeight( const wxPoint& aCrossbarStart, const wxPoint& aCrossbarEnd );
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						|
								
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								    void SetExtensionHeight( int aHeight ) { m_extensionHeight = aHeight; }
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								    int GetExtensionHeight() const { return m_extensionHeight; }
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						|
								
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								    /**
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								     * Function GetAngle
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								     * Returns angle of the crossbar.
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						|
								     * @return Angle of the crossbar line expressed in radians.
							 | 
						|
								     */
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						|
								    double GetAngle() const
							 | 
						|
								    {
							 | 
						|
								        wxPoint delta( m_end - m_start );
							 | 
						|
								
							 | 
						|
								        return atan2( (double)delta.y, (double)delta.x );
							 | 
						|
								    }
							 | 
						|
								
							 | 
						|
								    wxString GetClass() const override
							 | 
						|
								    {
							 | 
						|
								        return wxT( "ALIGNED_DIMENSION" );
							 | 
						|
								    }
							 | 
						|
								
							 | 
						|
								protected:
							 | 
						|
								
							 | 
						|
								    void updateGeometry() override;
							 | 
						|
								
							 | 
						|
								    void updateText() override;
							 | 
						|
								};
							 | 
						|
								
							 | 
						|
								#endif    // DIMENSION_H_
							 |