239 lines
8.8 KiB
C++
239 lines
8.8 KiB
C++
/**
|
|
* Functions to draw and plot text on screen
|
|
* @file draw_graphic_text.cpp
|
|
*/
|
|
|
|
/*
|
|
* This program source code file is part of KiCad, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
|
|
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
|
|
* Copyright (C) 2012 Wayne Stambaugh <stambaughw@gmail.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
|
|
*/
|
|
|
|
#include <gr_basic.h>
|
|
#include <plotter.h>
|
|
#include <eda_text.h> // EDA_TEXT_HJUSTIFY_T and EDA_TEXT_VJUSTIFY_T
|
|
#include <trigo.h>
|
|
#include <base_screen.h>
|
|
#include <gr_text.h>
|
|
#include <math/util.h> // for KiROUND
|
|
|
|
#include <basic_gal.h>
|
|
|
|
|
|
/**
|
|
* @param aTextSize is the char size (height or width).
|
|
* @return the "best" value for a pen size to draw/plot a bold text.
|
|
*/
|
|
int GetPenSizeForBold( int aTextSize )
|
|
{
|
|
return KiROUND( aTextSize / 5.0 );
|
|
}
|
|
|
|
|
|
int GetPenSizeForNormal( int aTextSize )
|
|
{
|
|
return KiROUND( aTextSize / 8.0 );
|
|
}
|
|
|
|
|
|
/**
|
|
* Don't allow text to become cluttered up in its own fatness. Bold fonts are generally around
|
|
* aSize/5 in width, so we limit them to aSize/4, and normal text to aSize/6.
|
|
*
|
|
* @param aPenSize is the pen size to clamp.
|
|
* @param aSize is the character size (height or width).
|
|
* @param aBold use true if text accept bold pen size.
|
|
* @return the max pen size allowed.
|
|
*/
|
|
int Clamp_Text_PenSize( int aPenSize, int aSize, bool aBold )
|
|
{
|
|
double scale = aBold ? 4.0 : 6.0;
|
|
int maxWidth = KiROUND( (double) aSize / scale );
|
|
|
|
return std::min( aPenSize, maxWidth );
|
|
}
|
|
|
|
|
|
float Clamp_Text_PenSize( float aPenSize, int aSize, bool aBold )
|
|
{
|
|
float scale = aBold ? 4.0 : 6.0;
|
|
float maxWidth = (float) aSize / scale;
|
|
|
|
return std::min( aPenSize, maxWidth );
|
|
}
|
|
|
|
|
|
int Clamp_Text_PenSize( int aPenSize, const wxSize& aSize, bool aBold )
|
|
{
|
|
int size = std::min( std::abs( aSize.x ), std::abs( aSize.y ) );
|
|
|
|
return Clamp_Text_PenSize( aPenSize, size, aBold );
|
|
}
|
|
|
|
|
|
int GraphicTextWidth( const wxString& aText, const wxSize& aSize, bool aItalic, bool aBold )
|
|
{
|
|
basic_gal.SetFontItalic( aItalic );
|
|
basic_gal.SetFontBold( aBold );
|
|
basic_gal.SetGlyphSize( VECTOR2D( aSize ) );
|
|
|
|
VECTOR2D tsize = basic_gal.GetTextLineSize( aText );
|
|
|
|
return KiROUND( tsize.x );
|
|
}
|
|
|
|
|
|
/**
|
|
* Draw a graphic text (like footprint texts).
|
|
*
|
|
* @param aDC is the current Device Context. NULL if draw within a 3D GL Canvas.
|
|
* @param aPos is the text position (according to h_justify, v_justify).
|
|
* @param aColor is the text color.
|
|
* @param aText is the text to draw.
|
|
* @param aOrient is the angle in 0.1 degree.
|
|
* @param aSize is the text size (size.x or size.y can be < 0 for mirrored texts).
|
|
* @param aH_justify is the horizontal justification (Left, center, right).
|
|
* @param aV_justify is the vertical justification (bottom, center, top).
|
|
* @param aWidth is the line width (pen width) (use default width if aWidth = 0).
|
|
* if width < 0 : draw segments in sketch mode, width = abs(width)
|
|
* Use a value min(aSize.x, aSize.y) / 5 for a bold text.
|
|
* @param aItalic is the true to simulate an italic font.
|
|
* @param aBold use true to use a bold font. Useful only with default width value (aWidth = 0).
|
|
* @param aCallback( int x0, int y0, int xf, int yf, void* aData ) is a function called
|
|
* (if non null) to draw each segment. used to draw 3D texts or for plotting.
|
|
* NULL for normal drawings
|
|
* @param aCallbackData is the auxiliary parameter aData for the callback function.
|
|
* can be nullptr if no auxiliary parameter is needed
|
|
* @param aPlotter is a PLOTTER instance, when this function is used to plot
|
|
* the text. NULL to draw this text.
|
|
*/
|
|
void GRText( wxDC* aDC, const wxPoint& aPos, const COLOR4D& aColor, const wxString& aText,
|
|
double aOrient, const wxSize& aSize, enum EDA_TEXT_HJUSTIFY_T aH_justify,
|
|
enum EDA_TEXT_VJUSTIFY_T aV_justify, int aWidth, bool aItalic, bool aBold,
|
|
void (* aCallback)( int x0, int y0, int xf, int yf, void* aData ),
|
|
void* aCallbackData, PLOTTER* aPlotter )
|
|
{
|
|
bool fill_mode = true;
|
|
|
|
if( aWidth == 0 && aBold ) // Use default values if aWidth == 0
|
|
aWidth = GetPenSizeForBold( std::min( aSize.x, aSize.y ) );
|
|
|
|
if( aWidth < 0 )
|
|
{
|
|
aWidth = -aWidth;
|
|
fill_mode = false;
|
|
}
|
|
|
|
basic_gal.SetIsFill( fill_mode );
|
|
basic_gal.SetLineWidth( aWidth );
|
|
|
|
EDA_TEXT dummy;
|
|
dummy.SetItalic( aItalic );
|
|
dummy.SetBold( aBold );
|
|
dummy.SetHorizJustify( aH_justify );
|
|
dummy.SetVertJustify( aV_justify );
|
|
|
|
wxSize size = aSize;
|
|
dummy.SetMirrored( size.x < 0 );
|
|
|
|
if( size.x < 0 )
|
|
size.x = - size.x;
|
|
|
|
dummy.SetTextSize( size );
|
|
|
|
basic_gal.SetTextAttributes( &dummy );
|
|
basic_gal.SetPlotter( aPlotter );
|
|
basic_gal.SetCallback( aCallback, aCallbackData );
|
|
basic_gal.m_DC = aDC;
|
|
basic_gal.m_Color = aColor;
|
|
basic_gal.SetClipBox( nullptr );
|
|
basic_gal.StrokeText( aText, VECTOR2D( aPos ), aOrient * M_PI/1800 );
|
|
}
|
|
|
|
|
|
void GRHaloText( wxDC* aDC, const wxPoint &aPos, const COLOR4D& aBgColor, const COLOR4D& aColor1,
|
|
const COLOR4D& aColor2, const wxString &aText, double aOrient, const wxSize &aSize,
|
|
enum EDA_TEXT_HJUSTIFY_T aH_justify, enum EDA_TEXT_VJUSTIFY_T aV_justify,
|
|
int aWidth, bool aItalic, bool aBold,
|
|
void (*aCallback)( int x0, int y0, int xf, int yf, void* aData ),
|
|
void* aCallbackData, PLOTTER * aPlotter )
|
|
{
|
|
COLOR4D color1 = aColor1;
|
|
COLOR4D color2 = aColor2;
|
|
|
|
// Swap color if contrast would be better
|
|
// TODO: Maybe calculate contrast some way other than brightness
|
|
if( aBgColor.GetBrightness() > 0.5 )
|
|
{
|
|
COLOR4D c = color1;
|
|
color1 = color2;
|
|
color2 = c;
|
|
}
|
|
|
|
// Draw the background
|
|
GRText( aDC, aPos, color1, aText, aOrient, aSize, aH_justify, aV_justify, aWidth, aItalic,
|
|
aBold, aCallback, aCallbackData, aPlotter );
|
|
|
|
// Draw the text
|
|
GRText( aDC, aPos, color2, aText, aOrient, aSize, aH_justify, aV_justify, aWidth / 4, aItalic,
|
|
aBold, aCallback, aCallbackData, aPlotter );
|
|
}
|
|
|
|
|
|
/**
|
|
* Same as GRText, but plot graphic text instead of draw it.
|
|
*
|
|
* @param aPos is the text position (according to aH_justify, aV_justify).
|
|
* @param aColor is the text color.
|
|
* @param aText is the text to draw.
|
|
* @param aOrient is the angle in 0.1 degree.
|
|
* @param aSize is the text size (size.x or size.y can be < 0 for mirrored texts).
|
|
* @param aH_justify is the horizontal justification (Left, center, right).
|
|
* @param aV_justify is the vertical justification (bottom, center, top).
|
|
* @param aPenWidth is the line width (if = 0, use plot default line width).
|
|
* @param aItalic is the true to simulate an italic font.
|
|
* @param aBold use true to use a bold font Useful only with default width value (aWidth = 0).
|
|
* @param aMultilineAllowed use true to plot text as multiline, otherwise single line.
|
|
* @param aData is a parameter used by some plotters in SetCurrentLineWidth(),
|
|
* not directly used here.
|
|
*/
|
|
void PLOTTER::Text( const wxPoint& aPos,
|
|
const COLOR4D& aColor,
|
|
const wxString& aText,
|
|
double aOrient,
|
|
const wxSize& aSize,
|
|
enum EDA_TEXT_HJUSTIFY_T aH_justify,
|
|
enum EDA_TEXT_VJUSTIFY_T aV_justify,
|
|
int aPenWidth,
|
|
bool aItalic,
|
|
bool aBold,
|
|
bool aMultilineAllowed,
|
|
void* aData )
|
|
{
|
|
SetColor( aColor );
|
|
SetCurrentLineWidth( aPenWidth, aData );
|
|
|
|
GRText( nullptr, aPos, aColor, aText, aOrient, aSize, aH_justify, aV_justify, aPenWidth,
|
|
aItalic, aBold, nullptr, nullptr, this );
|
|
}
|