/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 Jean-Pierre Charras, jpe.charras at wanadoo.fr
* Copyright (C) 2004-2017 KiCad Developers, see change_log.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
*/
/**
* @file eda_text.h
* @brief Definition of base KiCad text object.
*/
#ifndef EDA_TEXT_H_
#define EDA_TEXT_H_
#include <mutex>
#include <trigo.h> // NORMALIZE_ANGLE_POS( angle );
#include <common.h> // wxStringSplit
#include <gr_basic.h> // EDA_DRAW_MODE_T
#include <base_struct.h> // EDA_RECT
#include <mutex>
class SHAPE_POLY_SET;
// A mutex which is unique to each instance it appears in (ie: a new std::mutex is allocated
// on copy or assignment).
class UNIQUE_MUTEX : public std::mutex
{
public:
UNIQUE_MUTEX() : std::mutex() {}
UNIQUE_MUTEX( const UNIQUE_MUTEX& ) : std::mutex() {}
UNIQUE_MUTEX& operator= (const UNIQUE_MUTEX& ) { return *this; }
};
// part of the kicad_plugin.h family of defines.
// See kicad_plugin.h for the choice of the value
// When set when calling EDA_TEXT::Format, disable writing the "hide" keyword in save file
#define CTL_OMIT_HIDE (1 << 6)
// Graphic Text justify:
// Values -1,0,1 are used in computations, do not change them
enum EDA_TEXT_HJUSTIFY_T {
GR_TEXT_HJUSTIFY_LEFT = -1,
GR_TEXT_HJUSTIFY_CENTER = 0,
GR_TEXT_HJUSTIFY_RIGHT = 1
};
enum EDA_TEXT_VJUSTIFY_T {
GR_TEXT_VJUSTIFY_TOP = -1,
GR_TEXT_VJUSTIFY_CENTER = 0,
GR_TEXT_VJUSTIFY_BOTTOM = 1
};
/* Options to draw items with thickness ( segments, arcs, circles, texts...) */
enum EDA_DRAW_MODE_T {
FILLED = true, // normal mode: solid segments
SKETCH = false // sketch mode: draw segments outlines only
};
/** This is the "default-of-the-default" hardcoded text size; individual
* application define their own default policy starting with this
* (usually with a user option or project).
**/
#define DEFAULT_SIZE_TEXT 50 // default text height (in mils, i.e. 1/1000")
#define DIM_ANCRE_TEXTE 2 // Anchor size for text
/**
* Struct TEXT_EFFECTS
* is a bucket for text effects. These fields are bundled so they
* can be easily copied together as a lot. The privacy policy is established
* by client (incorporating) code.
*/
struct TEXT_EFFECTS
{
TEXT_EFFECTS( int aSetOfBits = 0 ) :
bits( aSetOfBits ),
hjustify( GR_TEXT_HJUSTIFY_CENTER ),
vjustify( GR_TEXT_VJUSTIFY_CENTER ),
penwidth( 0 ),
angle( 0.0 )
{}
short bits; ///< any set of booleans a client uses.
signed char hjustify; ///< horizontal justification
signed char vjustify; ///< vertical justification
wxSize size;
int penwidth;
double angle; ///< now: 0.1 degrees; future: degrees
wxPoint pos;
void Bit( int aBit, bool aValue ) { aValue ? bits |= (1<<aBit) : bits &= ~(1<<aBit); }
bool Bit( int aBit ) const { return bits & (1<<aBit); }
};
/**
* Class EDA_TEXT
* is a mix-in class (via multiple inheritance) that handles texts such as
* labels, parts, components, or footprints. Because it's a mix-in class, care
* is used to provide function names (accessors) that to not collide with function
* names likely to be seen in the combined derived classes.
*/
class EDA_TEXT
{
public:
EDA_TEXT( const wxString& text = wxEmptyString );
// Do not create a copy constructor & operator=.
// The ones generated by the compiler are adequate.
virtual ~EDA_TEXT();
/**
* Function GetText
* returns the string associated with the text object.
*
* @return a const wxString reference containing the string of the item.
*/
const wxString& GetText() const { return m_Text; }
/**
* Returns the string actually shown after processing of the base
* text. Default is no processing */
virtual wxString GetShownText() const { return m_Text; }
/**
* Returns a shortened version (max 15 characters) of the shown text */
wxString ShortenedShownText() const;
virtual void SetText( const wxString& aText ) { m_Text = aText; }
/**
* Function SetThickness
* sets pen width.
* @param aNewThickness is the new pen width
*/
void SetThickness( int aNewThickness ) { m_e.penwidth = aNewThickness; };
/**
* Function GetThickness
* returns pen width.
*/
int GetThickness() const { return m_e.penwidth; };
void SetTextAngle( double aAngle )
{
// Higher level classes may be more restrictive than this by
// overloading SetTextAngle() (probably non-virtual) or merely
// calling EDA_TEXT::SetTextAngle() after clamping aAngle
// before calling this lowest inline accessor.
m_e.angle = aAngle;
}
double GetTextAngle() const { return m_e.angle; }
double GetTextAngleDegrees() const { return GetTextAngle() / 10.0; }
double GetTextAngleRadians() const { return GetTextAngle() * M_PI/1800; }
void SetItalic( bool isItalic ) { m_e.Bit( TE_ITALIC, isItalic ); }
bool IsItalic() const { return m_e.Bit( TE_ITALIC ); }
void SetBold( bool aBold ) { m_e.Bit( TE_BOLD, aBold); }
bool IsBold() const { return m_e.Bit( TE_BOLD ); }
void SetVisible( bool aVisible ) { m_e.Bit( TE_VISIBLE, aVisible ); }
bool IsVisible() const { return m_e.Bit( TE_VISIBLE ); }
void SetMirrored( bool isMirrored ) { m_e.Bit( TE_MIRROR, isMirrored ); }
bool IsMirrored() const { return m_e.Bit( TE_MIRROR ); }
/**
* Function SetMultiLineAllowed
* @param aAllow true if ok to use multiline option, false
* if ok to use only single line text. (Single line is faster in
* calculations than multiline.)
*/
void SetMultilineAllowed( bool aAllow ) { m_e.Bit( TE_MULTILINE, aAllow ); }
bool IsMultilineAllowed() const { return m_e.Bit( TE_MULTILINE ); }
EDA_TEXT_HJUSTIFY_T GetHorizJustify() const { return EDA_TEXT_HJUSTIFY_T( m_e.hjustify ); };
EDA_TEXT_VJUSTIFY_T GetVertJustify() const { return EDA_TEXT_VJUSTIFY_T( m_e.vjustify ); };
void SetHorizJustify( EDA_TEXT_HJUSTIFY_T aType ) { m_e.hjustify = aType; };
void SetVertJustify( EDA_TEXT_VJUSTIFY_T aType ) { m_e.vjustify = aType; };
/**
* Function SetEffects
* sets the text effects from another instance. (TEXT_EFFECTS
* is not exposed in the public API, but includes everything except the actual
* text string itself.)
*/
void SetEffects( const EDA_TEXT& aSrc );
/**
* Function SwapEffects
* swaps the text effects of the two involved instances. (TEXT_EFECTS
* is not exposed in the public API, but includes everything except the actual
* text string itself.)
*/
void SwapEffects( EDA_TEXT& aTradingPartner );
bool IsDefaultFormatting() const;
void SetTextSize( const wxSize& aNewSize ) { m_e.size = aNewSize; };
const wxSize& GetTextSize() const { return m_e.size; };
void SetTextWidth( int aWidth ) { m_e.size.x = aWidth; }
int GetTextWidth() const { return m_e.size.x; }
void SetTextHeight( int aHeight ) { m_e.size.y = aHeight; }
int GetTextHeight() const { return m_e.size.y; }
void SetTextPos( const wxPoint& aPoint ) { m_e.pos = aPoint; }
const wxPoint& GetTextPos() const { return m_e.pos; }
void SetTextX( int aX ) { m_e.pos.x = aX; }
void SetTextY( int aY ) { m_e.pos.y = aY; }
void Offset( const wxPoint& aOffset ) { m_e.pos += aOffset; }
void Empty() { m_Text.Empty(); }
/**
* Function Draw
* @param aClipBox = the clipping rect, or NULL if no clipping
* @param aDC = the current Device Context
* @param aOffset = draw offset (usually (0,0))
* @param aColor = text color
* @param aDrawMode = GR_OR, GR_XOR.., -1 to use the current mode.
* @param aDisplay_mode = FILLED or SKETCH
* @param aAnchor_color = anchor color ( COLOR4D::UNSPECIFIED = do not draw anchor ).
*/
void Draw( EDA_RECT* aClipBox, wxDC* aDC,
const wxPoint& aOffset, COLOR4D aColor,
GR_DRAWMODE aDrawMode, EDA_DRAW_MODE_T aDisplay_mode = FILLED,
COLOR4D aAnchor_color = COLOR4D::UNSPECIFIED );
/**
* Convert the text shape to a list of segment
* each segment is stored as 2 wxPoints: the starting point and the ending point
* there are therefore 2*n points
* @param aCornerBuffer = a buffer to store the polygon
*/
void TransformTextShapeToSegmentList( std::vector<wxPoint>& aCornerBuffer ) const;
/**
* Function TransformBoundingBoxWithClearanceToPolygon
* Convert the text bounding box to a rectangular polygon
* depending on the text orientation, the bounding box
* is not always horizontal or vertical
* Used in filling zones calculations
* Circles and arcs are approximated by segments
* @param aCornerBuffer = a buffer to store the polygon
* @param aClearanceValue = the clearance around the text bounding box
* to the real clearance value (usually near from 1.0)
*/
void TransformBoundingBoxWithClearanceToPolygon( SHAPE_POLY_SET* aCornerBuffer,
int aClearanceValue ) const;
/**
* Function TextHitTest
* Test if \a aPoint is within the bounds of this object.
* @param aPoint- A wxPoint to test
* @param aAccuracy - Amount to inflate the bounding box.
* @return bool - true if a hit, else false
*/
virtual bool TextHitTest( const wxPoint& aPoint, int aAccuracy = 0 ) const;
/**
* Function TextHitTest (overloaded)
* Tests if object bounding box is contained within or intersects \a aRect.
*
* @param aRect - Rect to test against.
* @param aContains - Test for containment instead of intersection if true.
* @param aAccuracy - Amount to inflate the bounding box.
* @return bool - true if a hit, else false
*/
virtual bool TextHitTest( const EDA_RECT& aRect, bool aContains = false, int aAccuracy = 0 ) const;
/**
* Function LenSize
* @return the text length in internal units
* @param aLine : the line of text to consider.
* For single line text, this parameter is always m_Text
*/
int LenSize( const wxString& aLine ) const;
/**
* Function GetTextBox
* useful in multiline texts to calculate the full text or a line area (for
* zones filling, locate functions....)
* @return the rect containing the line of text (i.e. the position and the
* size of one line)
* this rectangle is calculated for 0 orient text.
* If orientation is not 0 the rect must be rotated to match the
* physical area
* @param aLine The line of text to consider.
* for single line text, aLine is unused
* If aLine == -1, the full area (considering all lines) is returned
* @param aThickness Overrides the current penwidth when greater than 0.
* This is needed when the current penwidth is 0 and a default penwidth is used.
* @param aInvertY Invert the Y axis when calculating bounding box.
*/
EDA_RECT GetTextBox( int aLine = -1, int aThickness = -1, bool aInvertY = false ) const;
/**
* Return the distance between two lines of text.
*
* <p>
* Calculates the distance (pitch) between two lines of text. This distance includes the
* interline distance plus room for characters like j, {, and [. It also used for single
* line text, to calculate the text bounding box.
* </p>
*
* @param aTextThickness Overrides the current thickness when greater than 0.
* this is needed when the current m_Thickness is 0 and a default line thickness
* is used
*/
int GetInterline( int aTextThickness = -1 ) const;
/**
* Function GetTextStyleName
* @return a wxString with the style name( Normal, Italic, Bold, Bold+Italic)
*/
wxString GetTextStyleName();
/**
* Function GetPositionsOfLinesOfMultilineText
* Populates aPositions with the position of each line of
* a multiline text, according to the vertical justification and the
* rotation of the whole text
* @param aPositions is the list to populate by the wxPoint positions
* @param aLineCount is the number of lines (not recalculated here
* for efficiency reasons
*/
void GetPositionsOfLinesOfMultilineText(
std::vector<wxPoint>& aPositions, int aLineCount ) const;
/**
* Function Format
* outputs the object to \a aFormatter in s-expression form.
*
* @param aFormatter The #OUTPUTFORMATTER object to write to.
* @param aNestLevel The indentation next level.
* @param aControlBits The control bit definition for object specific formatting.
* @throw IO_ERROR on write error.
*/
virtual void Format( OUTPUTFORMATTER* aFormatter, int aNestLevel, int aControlBits ) const;
protected:
wxString m_Text;
// wxString isn't thread-safe, so make use of this in multi-threaded situations
mutable UNIQUE_MUTEX m_mutex;
private:
/**
* Function drawOneLineOfText
* draws a single text line.
* Used to draw each line of this EDA_TEXT, that can be multiline
* @param aClipBox = the clipping rect, or NULL if no clipping
* @param aDC = the current Device Context
* @param aOffset = draw offset (usually (0,0))
* @param aColor = text color
* @param aDrawMode = GR_OR, GR_XOR.., -1 to use the current mode.
* @param aFillMode = FILLED or SKETCH
* @param aText = the single line of text to draw.
* @param aPos = the position of this line ).
*/
void drawOneLineOfText( EDA_RECT* aClipBox, wxDC* aDC,
const wxPoint& aOffset, COLOR4D aColor,
GR_DRAWMODE aDrawMode, EDA_DRAW_MODE_T aFillMode,
const wxString& aText, const wxPoint& aPos );
// Private text effects data. API above provides accessor funcs.
TEXT_EFFECTS m_e;
/// EDA_TEXT effects bools
enum TE_FLAGS {
// start at zero, sequence is irrelevant
TE_MIRROR,
TE_ITALIC,
TE_BOLD,
TE_MULTILINE,
TE_VISIBLE,
};
};
#endif // EDA_TEXT_H_