kicad/include/eda_text.h

408 lines
14 KiB
C++

/*
* 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) 2004-2019 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
*/
#ifndef EDA_TEXT_H_
#define EDA_TEXT_H_
#include <memory>
#include <vector>
#include <outline_mode.h>
#include <eda_rect.h>
class OUTPUTFORMATTER;
class SHAPE_COMPOUND;
class SHAPE_POLY_SET;
class wxFindReplaceData;
namespace KIGFX
{
class RENDER_SETTINGS;
class COLOR4D;
}
using KIGFX::RENDER_SETTINGS;
using KIGFX::COLOR4D;
/// Frequent text rotations, used with {Set,Get}TextAngle(),
/// in 0.1 degrees for now, hoping to migrate to degrees eventually.
#define TEXT_ANGLE_HORIZ 0
#define TEXT_ANGLE_VERT 900
// 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
};
/**
* 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
/**
* A container 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 )
{}
int 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); }
};
/**
* 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 );
EDA_TEXT( const EDA_TEXT& aText );
virtual ~EDA_TEXT();
/**
* Return the string associated with the text object.
*
* @return a const wxString reference containing the string of the item.
*/
virtual const wxString& GetText() const { return m_text; }
/**
* Return the string actually shown after processing of the base text.
* @aParam aDepth is used to prevent infinite recusions and loops when expanding
* text variables.
*/
virtual wxString GetShownText( int aDepth = 0 ) const { return m_shown_text; }
/**
* A version of GetShownText() which also indicates whether or not the text needs
* to be processed for text variables.
* @param processTextVars [out]
*/
wxString GetShownText( bool* processTextVars ) const
{
*processTextVars = m_shown_text_has_text_var_refs;
return m_shown_text;
}
/**
* Returns a shortened version (max 15 characters) of the shown text
*/
wxString ShortenedShownText() const;
virtual void SetText( const wxString& aText );
/**
* The TextThickness is that set by the user. The EffectiveTextPenWidth also factors
* in bold text and thickness clamping.
*/
void SetTextThickness( int aWidth ) { m_e.penwidth = aWidth; };
int GetTextThickness() const { return m_e.penwidth; };
/**
* The EffectiveTextPenWidth uses the text thickness if > 1 or
* aDefaultWidth.
*/
int GetEffectiveTextPenWidth( int aDefaultWidth = 0 ) const;
virtual void SetTextAngle( double aAngle )
{
// Higher level classes may be more restrictive than this by overloading
// SetTextAngle() 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 ); }
/**
* @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; };
/**
* Set 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 );
/**
* Swap the text effects of the two involved instances.
*
* TEXT_EFFECTS is not exposed in the public API, but includes everything except the actual
* text string itself.
*/
void SwapEffects( EDA_TEXT& aTradingPartner );
void SwapText( EDA_TEXT& aTradingPartner );
void CopyText( const EDA_TEXT& aSrc );
/**
* Helper function used in search and replace dialog.
*
* Perform a text replace using the find and replace criteria in \a aSearchData.
*
* @param aSearchData A reference to a wxFindReplaceData object containing the
* search and replace criteria.
* @return True if the text item was modified, otherwise false.
*/
bool Replace( wxFindReplaceData& aSearchData );
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(); }
static EDA_TEXT_HJUSTIFY_T MapHorizJustify( int aHorizJustify );
static EDA_TEXT_VJUSTIFY_T MapVertJustify( int aVertJustify );
/**
* Print this text object to the device context \a aDC.
*
* @param aDC = the current Device Context
* @param aOffset = draw offset (usually (0,0))
* @param aColor = text color
* @param aDisplay_mode = FILLED or SKETCH
*/
void Print( RENDER_SETTINGS* aSettings, const wxPoint& aOffset, COLOR4D aColor,
OUTLINE_MODE aDisplay_mode = FILLED );
/**
* 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.
*/
std::vector<wxPoint> TransformToSegmentList() const;
/**
* 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;
std::shared_ptr<SHAPE_COMPOUND> GetEffectiveTextShape( ) const;
/**
* 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;
/**
* Test 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, int aAccuracy = 0 ) const;
/**
* @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
* @param aThickness : the stroke width of the text
*/
int LenSize( const wxString& aLine, int aThickness ) const;
/**
* Useful in multiline texts to calculate the full text or a line area (for zones filling,
* locate functions....)
* @param aLine The line of text to consider. Pass -1 for all lines.
* @param aInvertY Invert the Y axis when calculating bounding box.
* @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
*/
EDA_RECT GetTextBox( int aLine = -1, bool aInvertY = false ) const;
/**
* Return the distance between two lines of text.
*
* 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.
*/
int GetInterline() const;
/**
* @return a wxString with the style name( Normal, Italic, Bold, Bold+Italic)
*/
wxString GetTextStyleName() const;
/**
* Populate \a 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 GetLinePositions( std::vector<wxPoint>& aPositions, int aLineCount ) const;
/**
* Output 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;
virtual double GetDrawRotation() const;
private:
wxString m_text;
wxString m_shown_text; // Cache of unescaped text for efficient access
bool m_shown_text_has_text_var_refs;
TEXT_EFFECTS m_e; // Private bitflags for text styling. API above
// provides accessor funcs.
enum TE_FLAGS {
TE_MIRROR,
TE_ITALIC,
TE_BOLD,
TE_MULTILINE,
TE_VISIBLE,
};
private:
/**
* Print each line of this EDA_TEXT.
*
* @param aOffset = draw offset (usually (0,0))
* @param aColor = text color
* @param aFillMode = FILLED or SKETCH
* @param aText = the single line of text to draw.
* @param aPos = the position of this line ).
*/
void printOneLineOfText( RENDER_SETTINGS* aSettings, const wxPoint& aOffset, COLOR4D aColor,
OUTLINE_MODE aFillMode, const wxString& aText,
const wxPoint& aPos );
};
#endif // EDA_TEXT_H_