KiCad PCB EDA Suite
gr_text.cpp
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1 
6 /*
7  * This program source code file is part of KiCad, a free EDA CAD application.
8  *
9  * Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
10  * Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
11  * Copyright (C) 2012 Wayne Stambaugh <stambaughw@verizon.net>
12  * Copyright (C) 1992-2018 KiCad Developers, see AUTHORS.txt for contributors.
13  *
14  * This program is free software; you can redistribute it and/or
15  * modify it under the terms of the GNU General Public License
16  * as published by the Free Software Foundation; either version 2
17  * of the License, or (at your option) any later version.
18  *
19  * This program is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22  * GNU General Public License for more details.
23  *
24  * You should have received a copy of the GNU General Public License
25  * along with this program; if not, you may find one here:
26  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
27  * or you may search the http://www.gnu.org website for the version 2 license,
28  * or you may write to the Free Software Foundation, Inc.,
29  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
30  */
31 
32 #include <gr_basic.h>
33 #include <plotter.h>
34 #include <eda_text.h> // EDA_TEXT_HJUSTIFY_T and EDA_TEXT_VJUSTIFY_T
35 #include <trigo.h>
36 #include <base_screen.h>
37 #include <gr_text.h>
38 #include <math/util.h> // for KiROUND
39 
40 #include <basic_gal.h>
41 
42 
48 int GetPenSizeForBold( int aTextSize )
49 {
50  return KiROUND( aTextSize / 5.0 );
51 }
52 
53 
54 int GetPenSizeForNormal( int aTextSize )
55 {
56  return KiROUND( aTextSize / 8.0 );
57 }
58 
59 
69 int Clamp_Text_PenSize( int aPenSize, int aSize, bool aBold )
70 {
71  double scale = aBold ? 4.0 : 6.0;
72  int maxWidth = KiROUND( (double) aSize / scale );
73 
74  return std::min( aPenSize, maxWidth );
75 }
76 
77 
78 float Clamp_Text_PenSize( float aPenSize, int aSize, bool aBold )
79 {
80  float scale = aBold ? 4.0 : 6.0;
81  float maxWidth = (float) aSize / scale;
82 
83  return std::min( aPenSize, maxWidth );
84 }
85 
86 
87 int Clamp_Text_PenSize( int aPenSize, wxSize aSize, bool aBold )
88 {
89  int size = std::min( std::abs( aSize.x ), std::abs( aSize.y ) );
90 
91  return Clamp_Text_PenSize( aPenSize, size, aBold );
92 }
93 
94 
95 int GraphicTextWidth( const wxString& aText, const wxSize& aSize, bool aItalic, bool aBold )
96 {
97  basic_gal.SetFontItalic( aItalic );
98  basic_gal.SetFontBold( aBold );
99  basic_gal.SetGlyphSize( VECTOR2D( aSize ) );
100 
101  VECTOR2D tsize = basic_gal.GetTextLineSize( aText );
102 
103  return KiROUND( tsize.x );
104 }
105 
106 
131 void GRText( wxDC* aDC, const wxPoint& aPos, COLOR4D aColor, const wxString& aText,
132  double aOrient, const wxSize& aSize, enum EDA_TEXT_HJUSTIFY_T aH_justify,
133  enum EDA_TEXT_VJUSTIFY_T aV_justify, int aWidth, bool aItalic, bool aBold,
134  void (* aCallback)( int x0, int y0, int xf, int yf, void* aData ),
135  void* aCallbackData, PLOTTER* aPlotter )
136 {
137  bool fill_mode = true;
138 
139  if( aWidth == 0 && aBold ) // Use default values if aWidth == 0
140  aWidth = GetPenSizeForBold( std::min( aSize.x, aSize.y ) );
141 
142  if( aWidth < 0 )
143  {
144  aWidth = -aWidth;
145  fill_mode = false;
146  }
147 
148  basic_gal.SetIsFill( fill_mode );
149  basic_gal.SetLineWidth( aWidth );
150 
151  EDA_TEXT dummy;
152  dummy.SetItalic( aItalic );
153  dummy.SetBold( aBold );
154  dummy.SetHorizJustify( aH_justify );
155  dummy.SetVertJustify( aV_justify );
156 
157  wxSize size = aSize;
158  dummy.SetMirrored( size.x < 0 );
159 
160  if( size.x < 0 )
161  size.x = - size.x;
162 
163  dummy.SetTextSize( size );
164 
166  basic_gal.SetPlotter( aPlotter );
167  basic_gal.SetCallback( aCallback, aCallbackData );
168  basic_gal.m_DC = aDC;
169  basic_gal.m_Color = aColor;
170  basic_gal.SetClipBox( nullptr );
171 
172  basic_gal.StrokeText( aText, VECTOR2D( aPos ), aOrient * M_PI/1800 );
173 }
174 
175 
176 void GRHaloText( wxDC * aDC, const wxPoint &aPos, COLOR4D aBgColor, COLOR4D aColor1,
177  COLOR4D aColor2, const wxString &aText, double aOrient, const wxSize &aSize,
178  enum EDA_TEXT_HJUSTIFY_T aH_justify, enum EDA_TEXT_VJUSTIFY_T aV_justify,
179  int aWidth, bool aItalic, bool aBold,
180  void (*aCallback)( int x0, int y0, int xf, int yf, void* aData ),
181  void* aCallbackData, PLOTTER * aPlotter )
182 {
183  // Swap color if contrast would be better
184  // TODO: Maybe calculate contrast some way other than brightness
185  if( aBgColor.GetBrightness() > 0.5 )
186  {
187  COLOR4D c = aColor1;
188  aColor1 = aColor2;
189  aColor2 = c;
190  }
191 
192  // Draw the background
193  GRText( aDC, aPos, aColor1, aText, aOrient, aSize, aH_justify, aV_justify, aWidth, aItalic,
194  aBold, aCallback, aCallbackData, aPlotter );
195 
196  // Draw the text
197  GRText( aDC, aPos, aColor2, aText, aOrient, aSize, aH_justify, aV_justify, aWidth/4, aItalic,
198  aBold, aCallback, aCallbackData, aPlotter );
199 }
200 
201 
219 void PLOTTER::Text( const wxPoint& aPos,
220  const COLOR4D aColor,
221  const wxString& aText,
222  double aOrient,
223  const wxSize& aSize,
224  enum EDA_TEXT_HJUSTIFY_T aH_justify,
225  enum EDA_TEXT_VJUSTIFY_T aV_justify,
226  int aPenWidth,
227  bool aItalic,
228  bool aBold,
229  bool aMultilineAllowed,
230  void* aData )
231 {
232  SetColor( aColor );
233  SetCurrentLineWidth( aPenWidth );
234 
235  GRText( NULL, aPos, aColor, aText, aOrient, aSize, aH_justify, aV_justify, aPenWidth,
236  aItalic, aBold, nullptr, nullptr, this );
237 }
Common plot library Plot settings, and plotting engines (Postscript, Gerber, HPGL and DXF)
EDA_TEXT_HJUSTIFY_T
Definition: eda_text.h:56
double GetBrightness() const
Function GetBrightness Returns the brightness value of the color ranged from 0.0 to 1....
Definition: color4d.h:337
int GetPenSizeForBold(int aTextSize)
Function GetPensizeForBold.
Definition: gr_text.cpp:48
virtual void SetColor(COLOR4D color)=0
void SetCallback(void(*aCallback)(int x0, int y0, int xf, int yf, void *aData), void *aData)
Definition: basic_gal.h:86
virtual void SetTextAttributes(const EDA_TEXT *aText)
Loads attributes of the given text (bold/italic/underline/mirrored and so on).
int GraphicTextWidth(const wxString &aText, const wxSize &aSize, bool aItalic, bool aBold)
Function GraphicTextWidth.
Definition: gr_text.cpp:95
VECTOR2D GetTextLineSize(const UTF8 &aText) const
Compute the X and Y size of a given text.
void GRHaloText(wxDC *aDC, const wxPoint &aPos, COLOR4D aBgColor, COLOR4D aColor1, 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)
Draw graphic text with a border, so that it can be read on different backgrounds.
Definition: gr_text.cpp:176
virtual void SetLineWidth(float aLineWidth)
Set the line width.
virtual void 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 aWidth, bool aItalic, bool aBold, bool aMultilineAllowed=false, void *aData=NULL)
Draws text with the plotter.
Definition: gr_text.cpp:219
A mix-in class (via multiple inheritance) that handles texts such as labels, parts,...
Definition: eda_text.h:114
void SetFontBold(const bool aBold)
Set bold property of current font.
int Clamp_Text_PenSize(int aPenSize, int aSize, bool aBold)
Function Clamp_Text_PenSize Don't allow text to become cluttered up in its own fatness.
Definition: gr_text.cpp:69
#define NULL
VECTOR2< double > VECTOR2D
Definition: vector2d.h:593
virtual void SetIsFill(bool aIsFillEnabled)
Enable/disable fill.
COLOR4D m_Color
Definition: basic_gal.h:63
virtual void StrokeText(const wxString &aText, const VECTOR2D &aPosition, double aRotationAngle)
Draws a vector type text using preloaded Newstroke font.
int GetPenSizeForNormal(int aTextSize)
Function GetPensizeForNormal.
Definition: gr_text.cpp:54
void SetPlotter(PLOTTER *aPlotter)
Definition: basic_gal.h:81
void SetFontItalic(bool aItalic)
Set italic property of current font.
void GRText(wxDC *aDC, const wxPoint &aPos, 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)
Function GRText Draw a graphic text (like module texts)
Definition: gr_text.cpp:131
EDA_TEXT_VJUSTIFY_T
Definition: eda_text.h:63
Base plotter engine class.
Definition: plotter.h:120
void SetGlyphSize(const VECTOR2D aSize)
Set the font glyph size.
const int scale
wxDC * m_DC
Definition: basic_gal.h:62
static LIB_PART * dummy()
Used to draw a dummy shape when a LIB_PART is not found in library.
constexpr ret_type KiROUND(fp_type v)
Round a floating point number to an integer using "round halfway cases away from zero".
Definition: util.h:68
BASIC_GAL basic_gal(basic_displayOptions)
BASE_SCREEN class implementation.
void SetClipBox(EDA_RECT *aClipBox)
Set a clip box for drawings If NULL, no clip will be made.
Definition: basic_gal.h:94
virtual void SetCurrentLineWidth(int width, void *aData=NULL)=0
Set the line width for the next drawing.
COLOR4D is the color representation with 4 components: red, green, blue, alpha.
Definition: color4d.h:100