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kicad/pcbnew/pcb_dimension.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2021 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
*/
#ifndef PCB_DIMENSION_H
#define PCB_DIMENSION_H
#include <board_item.h>
#include <pcb_text.h>
#include <geometry/shape.h>
#include <geometry/circle.h>
class LINE_READER;
class MSG_PANEL_ITEM;
/// How to display the units in a dimension's text
enum class DIM_UNITS_FORMAT
{
NO_SUFFIX, // 1234.0
BARE_SUFFIX, // 1234.0 mm
PAREN_SUFFIX // 1234.0 (mm)
};
/// Where to place the text on a dimension
enum class DIM_TEXT_POSITION
{
OUTSIDE, ///< Text appears outside the dimension line (default)
INLINE, ///< Text appears in line with the dimension line
MANUAL ///< Text placement is manually set by the user
};
/**
* Used for storing the units selection in the file because EDA_UNITS alone doesn't cut it
*/
enum class DIM_UNITS_MODE
{
INCHES,
MILS,
MILLIMETRES,
AUTOMATIC
};
/**
* Frame to show around dimension text
*/
enum class DIM_TEXT_BORDER
{
NONE,
RECTANGLE,
CIRCLE,
ROUNDRECT
};
/**
* Abstract dimension API
*
* Some notes about dimension nomenclature:
*
* - "feature points" are the points being measured by the dimension. For an example, the start
* and end points of a line to be measured. These are the first points picked when drawing a
* new dimension. Dimensions can have one or more feature points: linear dimensions (the only
* type supported in KiCad 5 and earlier) have two feature points; leader dimensions have one;
* and ordinate dimensions can have in theory an unlimited number of feature points.
*
* - "feature lines" are lines that coincide with feature points. Not all dimension types have
* feature lines. The actual start and end of feature lines is calculated from dimension style
* properties (offset from feature point to start of feature line, height of crossbar, and height
* of feature line past crossbar, for example in linear dimensions)
*
* - "crossbar" refers to the perpendicular line (usually with arrows at each end) between feature
* lines on linear dimensions
*/
class PCB_DIMENSION_BASE : public BOARD_ITEM
{
public:
PCB_DIMENSION_BASE( BOARD_ITEM* aParent, KICAD_T aType = PCB_DIMENSION_T );
bool IsType( const KICAD_T aScanTypes[] ) const override
{
if( BOARD_ITEM::IsType( aScanTypes ) )
return true;
for( const KICAD_T* p = aScanTypes; *p != EOT; ++p )
{
if( *p == PCB_LOCATE_GRAPHIC_T )
return true;
}
return false;
}
void SetParent( EDA_ITEM* aParent ) override;
/**
* The dimension's origin is the first feature point for the dimension. Every dimension has
* one or more feature points, so every dimension has at least an origin.
* @return the origin point of this dimension
*/
virtual const wxPoint& GetStart() const { return m_start; }
virtual void SetStart( const wxPoint& aPoint ) { m_start = aPoint; }
virtual const wxPoint& GetEnd() const { return m_end; }
virtual void SetEnd( const wxPoint& aPoint ) { m_end = aPoint; }
wxPoint GetPosition() const override { return m_start; }
void SetPosition( const wxPoint& aPos ) override { m_start = aPos; }
bool GetOverrideTextEnabled() const { return m_overrideTextEnabled; }
void SetOverrideTextEnabled( bool aOverride ) { m_overrideTextEnabled = aOverride; }
wxString GetOverrideText() const { return m_valueString; }
void SetOverrideText( const wxString& aValue ) { m_valueString = aValue; }
int GetMeasuredValue() const { return m_measuredValue; }
// KiCad normally calculates the measured value but some importers need to set it.
void SetMeasuredValue( int aValue ) { m_measuredValue = aValue; }
/**
* @return the dimension value, rendered with precision / zero suppression but no units, etc
*/
wxString GetValueText() const;
/**
* Update the dimension's cached text and geometry.
*/
void Update()
{
updateGeometry();
updateText();
}
wxString GetPrefix() const { return m_prefix; }
void SetPrefix( const wxString& aPrefix );
wxString GetSuffix() const { return m_suffix; }
void SetSuffix( const wxString& aSuffix );
void GetUnits( EDA_UNITS& aUnits ) const { aUnits = m_units; }
void SetUnits( EDA_UNITS aUnits );
DIM_UNITS_MODE GetUnitsMode() const;
void SetUnitsMode( DIM_UNITS_MODE aMode );
void SetAutoUnits( bool aAuto = true ) { m_autoUnits = aAuto; }
DIM_UNITS_FORMAT GetUnitsFormat() const { return m_unitsFormat; }
void SetUnitsFormat( const DIM_UNITS_FORMAT aFormat ) { m_unitsFormat = aFormat; }
int GetPrecision() const { return m_precision; }
void SetPrecision( int aPrecision ) { m_precision = aPrecision; }
bool GetSuppressZeroes() const { return m_suppressZeroes; }
void SetSuppressZeroes( bool aSuppress ) { m_suppressZeroes = aSuppress; }
bool GetKeepTextAligned() const { return m_keepTextAligned; }
void SetKeepTextAligned( bool aKeepAligned ) { m_keepTextAligned = aKeepAligned; }
void SetTextPositionMode( DIM_TEXT_POSITION aMode ) { m_textPosition = aMode; }
DIM_TEXT_POSITION GetTextPositionMode() const { return m_textPosition; }
int GetArrowLength() const { return m_arrowLength; }
void SetArrowLength( int aLength ) { m_arrowLength = aLength; }
void SetExtensionOffset( int aOffset ) { m_extensionOffset = aOffset; }
int GetExtensionOffset() const { return m_extensionOffset; }
int GetLineThickness() const { return m_lineThickness; }
void SetLineThickness( int aWidth ) { m_lineThickness = aWidth; }
void SetLayer( PCB_LAYER_ID aLayer ) override;
void SetTextSize( const wxSize& aTextSize )
{
m_text.SetTextSize( aTextSize );
}
/**
* Set the override text - has no effect if m_overrideValue == false.
*
* @param aNewText is the text to use as the value.
*/
void SetText( const wxString& aNewText );
/**
* Retrieve the value text or override text, not including prefix or suffix.
*
* @return the value portion of the dimension text (either overridden or not).
*/
const wxString GetText() const;
PCB_TEXT& Text() { return m_text; }
const PCB_TEXT& Text() const { return m_text; }
/**
* @return a list of line segments that make up this dimension (for drawing, plotting, etc).
*/
const std::vector<std::shared_ptr<SHAPE>>& GetShapes() const { return m_shapes; }
// BOARD_ITEM overrides
void Move( const wxPoint& offset ) override;
void Rotate( const wxPoint& aRotCentre, double aAngle ) override;
void Flip( const wxPoint& aCentre, bool aFlipLeftRight ) override;
/**
* Mirror the dimension relative to a given horizontal axis.
*
* The text is not mirrored. Only its position (and angle) is mirrored. The layer is not
* changed.
*
* @param axis_pos is the vertical axis position to mirror around.
*/
void Mirror( const wxPoint& axis_pos, bool aMirrorLeftRight = false );
void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
bool HitTest( const wxPoint& aPosition, int aAccuracy ) const override;
bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
const EDA_RECT GetBoundingBox() const override;
std::shared_ptr<SHAPE> GetEffectiveShape( PCB_LAYER_ID aLayer ) const override;
wxString GetSelectMenuText( EDA_UNITS aUnits ) const override;
const BOX2I ViewBBox() const override;
void TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer, PCB_LAYER_ID aLayer,
int aClearance, int aError, ERROR_LOC aErrorLoc,
bool aIgnoreLineWidth ) const override;
#if defined(DEBUG)
virtual void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif
protected:
/**
* Update the cached geometry of the dimension after changing any of its properties.
*/
virtual void updateGeometry() = 0;
/**
* Update the text field value from the current geometry (called by updateGeometry normally).
*/
virtual void updateText();
template<typename ShapeType>
void addShape( const ShapeType& aShape );
/**
* Find the intersection between a given segment and polygon outline.
*
* @param aPoly is the polygon to collide.
* @param aSeg is the segment to collide.
* @param aStart if true will start from aSeg.A, otherwise aSeg.B.
* @return a point on aSeg that collides with aPoly closest to the start, if one exists.
*/
static OPT_VECTOR2I segPolyIntersection( const SHAPE_POLY_SET& aPoly, const SEG& aSeg,
bool aStart = true );
static OPT_VECTOR2I segCircleIntersection( CIRCLE& aCircle, SEG& aSeg, bool aStart = true );
// Value format
bool m_overrideTextEnabled; ///< Manually specify the displayed measurement value
wxString m_valueString; ///< Displayed value when m_overrideValue = true
wxString m_prefix; ///< String prepended to the value
wxString m_suffix; ///< String appended to the value
EDA_UNITS m_units; ///< 0 = inches, 1 = mm
bool m_autoUnits; ///< If true, follow the currently selected UI units
DIM_UNITS_FORMAT m_unitsFormat; ///< How to render the units suffix
int m_precision; ///< Number of digits to display after decimal
bool m_suppressZeroes; ///< Suppress trailing zeroes
// Geometry
int m_lineThickness; ///< Thickness used for all graphics in the dimension
int m_arrowLength; ///< Length of arrow shapes
int m_extensionOffset; ///< Distance from feature points to extension line start
DIM_TEXT_POSITION m_textPosition; ///< How to position the text
bool m_keepTextAligned; ///< Calculate text orientation to match dimension
// Internal
PCB_TEXT m_text; ///< The actual text object
int m_measuredValue; ///< value of PCB dimensions
wxPoint m_start;
wxPoint m_end;
///< Internal cache of drawn shapes
std::vector<std::shared_ptr<SHAPE>> m_shapes;
static constexpr float s_arrowAngle = 27.5;
};
/**
* For better understanding of the points that make a dimension:
*
* Note: historically KiCad called extension lines "feature lines", and also note that what we
* call the "crossbar line" here is more commonly called the "dimension line"
*
* Start (feature point 1) End (feature point 2)
* | |
* | <-- extension lines --> |
* | |
* | m_arrowG2F m_arrowD2F |
* | / \ |
* Crossbar start |/_______crossbar line________\| Crossbar end
* |\ m_text /|
* | \ / |
* | m_arrowG1F m_arrowD1F |
* | |
* m_featureLineGF m_featureLineDF
*/
/**
* An aligned dimension measures the distance between two feature points. It has a crossbar
* (dimension line) that stays parallel with the vector between the feature points.
*
* The height (distance from features to crossbar) can be set directly, or set by manipulating the
* crossbar start or end point (with the point editor).
*/
class PCB_DIM_ALIGNED : public PCB_DIMENSION_BASE
{
public:
PCB_DIM_ALIGNED( BOARD_ITEM* aParent, KICAD_T aType = PCB_DIM_ALIGNED_T );
// Do not create a copy constructor & operator=.
// The ones generated by the compiler are adequate.
~PCB_DIM_ALIGNED() = default;
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_DIM_ALIGNED_T == aItem->Type();
}
EDA_ITEM* Clone() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
BITMAPS GetMenuImage() const override;
const wxPoint& GetCrossbarStart() const { return m_crossBarStart; }
const wxPoint& GetCrossbarEnd() const { return m_crossBarEnd; }
/**
* Set the distance from the feature points to the crossbar line.
*
* @param aHeight is the new height.
*/
void SetHeight( int aHeight ) { m_height = aHeight; }
int GetHeight() const { return m_height; }
/**
* Update the stored height basing on points coordinates.
*
* @param aCrossbarStart is the start point of the crossbar.
*/
void UpdateHeight( const wxPoint& aCrossbarStart, const wxPoint& aCrossbarEnd );
void SetExtensionHeight( int aHeight ) { m_extensionHeight = aHeight; }
int GetExtensionHeight() const { return m_extensionHeight; }
/**
* Return the angle of the crossbar.
*
* @return Angle of the crossbar line expressed in radians.
*/
double GetAngle() const
{
wxPoint delta( m_end - m_start );
return atan2( (double)delta.y, (double)delta.x );
}
wxString GetClass() const override
{
return wxT( "PCB_DIM_ALIGNED" );
}
void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
protected:
void updateGeometry() override;
void updateText() override;
// Geometry
int m_height; ///< Perpendicular distance from features to crossbar
int m_extensionHeight; ///< Length of extension lines past the crossbar
wxPoint m_crossBarStart; ///< Crossbar start control point
wxPoint m_crossBarEnd; ///< Crossbar end control point
};
/**
* An orthogonal dimension is like an aligned dimension, but the extension lines are locked to the
* X or Y axes, and the measurement is only taken in the X or Y direction.
*/
class PCB_DIM_ORTHOGONAL : public PCB_DIM_ALIGNED
{
public:
enum class DIR
{
HORIZONTAL, // Aligned with x-axis
VERTICAL // Aligned with y-axis
};
PCB_DIM_ORTHOGONAL( BOARD_ITEM* aParent );
~PCB_DIM_ORTHOGONAL() = default;
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_DIM_ORTHOGONAL_T == aItem->Type();
}
EDA_ITEM* Clone() const override;
void SwapData( BOARD_ITEM* aImage ) override;
BITMAPS GetMenuImage() const override;
/**
* Set the orientation of the dimension line (so, perpendicular to the feature lines).
*
* @param aOrientation is the orientation the dimension should take.
*/
void SetOrientation( DIR aOrientation ) { m_orientation = aOrientation; }
DIR GetOrientation() const { return m_orientation; }
wxString GetClass() const override
{
return wxT( "PCB_DIM_ORTHOGONAL" );
}
void Rotate( const wxPoint& aRotCentre, double aAngle ) override;
protected:
void updateGeometry() override;
void updateText() override;
private:
// Geometry
DIR m_orientation; ///< What axis to lock the dimension line to.
};
/**
* A radial dimension indicates either the radius or diameter of an arc or circle.
*
* A guide to the geometry of a circle dimension:
*
* |
* --a--
* |
*
*
* b_
* |\
* \
* c---d TEXT
*
* Point a (the center of the arc or circle) is m_start, point b (a point on the arc or circle)
* is m_end, point c is m_leaderLength away from b on the a-b vector, and point d is the end of
* the "text line". The c-d line is drawn from c to the text center, and clipped on the text
* bounding box.
*/
class PCB_DIM_RADIAL : public PCB_DIMENSION_BASE
{
public:
PCB_DIM_RADIAL( BOARD_ITEM* aParent );
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_DIM_RADIAL_T == aItem->Type();
}
EDA_ITEM* Clone() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
void SetLeaderLength( int aLength ) { m_leaderLength = aLength; }
int GetLeaderLength() const { return m_leaderLength; }
// Returns the point (c).
wxPoint GetKnee() const;
BITMAPS GetMenuImage() const override;
wxString GetClass() const override
{
return wxT( "PCB_DIM_RADIAL" );
}
protected:
void updateText() override;
void updateGeometry() override;
private:
bool m_isDiameter;
int m_leaderLength;
};
/**
* A leader is a dimension-like object pointing to a specific point.
*
* A guide to the geometry of a leader:
*
* a_
* |\
* \
* b---c TEXT
*
* Point (a) is m_start, point (b) is m_end, point (c) is the end of the "text line"
* The b-c line is drawn from b to the text center, and clipped on the text bounding box.
*/
class PCB_DIM_LEADER : public PCB_DIMENSION_BASE
{
public:
PCB_DIM_LEADER( BOARD_ITEM* aParent );
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_DIM_LEADER_T == aItem->Type();
}
EDA_ITEM* Clone() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
BITMAPS GetMenuImage() const override;
wxString GetClass() const override
{
return wxT( "PCB_DIM_LEADER" );
}
void SetTextBorder( DIM_TEXT_BORDER aFrame ) { m_textBorder = aFrame; }
DIM_TEXT_BORDER GetTextBorder() const { return m_textBorder; }
void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
protected:
void updateGeometry() override;
private:
DIM_TEXT_BORDER m_textBorder;
};
/**
* Mark the center of a circle or arc with a cross shape.
*
* The size and orientation of the cross is adjustable.
* m_start always marks the center being measured; m_end marks the end of one leg of the cross.
*/
class PCB_DIM_CENTER : public PCB_DIMENSION_BASE
{
public:
PCB_DIM_CENTER( BOARD_ITEM* aParent );
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_DIM_CENTER_T == aItem->Type();
}
EDA_ITEM* Clone() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
BITMAPS GetMenuImage() const override;
wxString GetClass() const override
{
return wxT( "PCB_DIM_CENTER" );
}
const EDA_RECT GetBoundingBox() const override;
const BOX2I ViewBBox() const override;
protected:
void updateGeometry() override;
};
#endif // DIMENSION_H
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