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[pcf] Make long family names configurable.

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The change from 2016-09-29 was too radical (except for people using
the openSuSE GNU/Linux distribution).  To ameliorate the situation,
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls
the feature; if set, a new PCF property option
`no-long-family-names' can be used to switch this feature off.

* include/freetype/config/ftoption.h, devel/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option.

* include/freetype/ftpcfdrv.h: New header file (only containing
comments currently, used for building the documentation).

* include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro.

* src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field.

* src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and
FT_PCF_DRIVER_H.
(pcf_property_set, pcf_property_get): New functions.
(pcf_service_properties): New service.
(pcf_servives): Updated.
(pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle
`no_long_family_names'.

* src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names'
and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.

* docs/CHANGES: Updated.
Harmony
Werner Lemberg 8 years ago
parent f837a50ec3
commit 08fd250e1a
10 changed files with 400 additions and 44 deletions
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  1. 33
      ChangeLog
  2. 31
      devel/ftoption.h
  3. 16
      docs/CHANGES
  4. 13
      include/freetype/config/ftheader.h
  5. 31
      include/freetype/config/ftoption.h
  6. 1
      include/freetype/ftchapters.h
  7. 105
      include/freetype/ftpcfdrv.h
  8. 2
      src/pcf/pcf.h
  9. 114
      src/pcf/pcfdrivr.c
  10. 98
      src/pcf/pcfread.c

33
ChangeLog
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@ -1,3 +1,36 @@
2017-01-09 Werner Lemberg <wl@gnu.org>
[pcf] Make long family names configurable.
The change from 2016-09-29 was too radical (except for people using
the openSuSE GNU/Linux distribution). To ameliorate the situation,
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls
the feature; if set, a new PCF property option
`no-long-family-names' can be used to switch this feature off.
* include/freetype/config/ftoption.h, devel/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option.
* include/freetype/ftpcfdrv.h: New header file (only containing
comments currently, used for building the documentation).
* include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro.
* src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field.
* src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and
FT_PCF_DRIVER_H.
(pcf_property_set, pcf_property_get): New functions.
(pcf_service_properties): New service.
(pcf_servives): Updated.
(pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle
`no_long_family_names'.
* src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names'
and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
* docs/CHANGES: Updated.
2017-01-09 Werner Lemberg <wl@gnu.org>
[pcf] Introduce a driver structure.

31
devel/ftoption.h
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@ -82,8 +82,8 @@ FT_BEGIN_HEADER
/* to control the various font drivers and modules. The controllable */
/* properties are listed in the section `Controlling FreeType Modules' */
/* in the reference's table of contents; currently there are properties */
/* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), and */
/* TrueType (file `ftttdrv.h'). */
/* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), */
/* TrueType (file `ftttdrv.h'), and PCF (file `ftpcfdrv.h'). */
/* */
/* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */
/* multiple lines for better readability). */
@ -832,6 +832,33 @@ FT_BEGIN_HEADER
#define CFF_CONFIG_OPTION_OLD_ENGINE
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** P C F D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* There are many PCF fonts just called `Fixed' which look completely */
/* different, and which have nothing to do with each other. When */
/* selecting `Fixed' in KDE or Gnome one gets results that appear rather */
/* random, the style changes often if one changes the size and one */
/* cannot select some fonts at all. This option makes the PCF module */
/* prepend the foundry name (plus a space) to the family name. */
/* */
/* We also check whether we have `wide' characters; all put together, we */
/* get family names like `Sony Fixed' or `Misc Fixed Wide'. */
/* */
/* If this option is activated, it can be controlled with the */
/* `no-long-family-names' property of the pcf driver module. */
/* */
#define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
/*************************************************************************/
/*************************************************************************/
/**** ****/

16
docs/CHANGES
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@ -1,4 +1,20 @@
CHANGES BETWEEN 2.7.1 and 2.7.2
I. IMPORTANT CHANGES
- The PCF change to show more `colourful' family names (introduced
in version 2.7.1) was too radical; it can now be configured with
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES at compile time. If
activated, it can be switched off at run time with the new pcf
property `no-long-family-names'. If the `FREETYPE_PROPERTIES'
environment variable is available, you can say
FREETYPE_PROPERTIES=pcf:no-long-family-names=1
======================================================================
CHANGES BETWEEN 2.7 and 2.7.1
I. IMPORTANT CHANGES

13
include/freetype/config/ftheader.h
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@ -354,6 +354,19 @@
#define FT_TRUETYPE_DRIVER_H <freetype/ftttdrv.h>
/*************************************************************************
*
* @macro:
* FT_PCF_DRIVER_H
*
* @description:
* A macro used in #include statements to name the file containing
* structures and macros related to the PCF driver module.
*
*/
#define FT_PCF_DRIVER_H <freetype/ftpcfdrv.h>
/*************************************************************************
*
* @macro:

31
include/freetype/config/ftoption.h
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@ -82,8 +82,8 @@ FT_BEGIN_HEADER
/* to control the various font drivers and modules. The controllable */
/* properties are listed in the section `Controlling FreeType Modules' */
/* in the reference's table of contents; currently there are properties */
/* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), and */
/* TrueType (file `ftttdrv.h'). */
/* for the auto-hinter (file `ftautoh.h'), CFF (file `ftcffdrv.h'), */
/* TrueType (file `ftttdrv.h'), and PCF (file `ftpcfdrv.h'). */
/* */
/* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */
/* multiple lines for better readability). */
@ -832,6 +832,33 @@ FT_BEGIN_HEADER
/* #define CFF_CONFIG_OPTION_OLD_ENGINE */
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** P C F D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* There are many PCF fonts just called `Fixed' which look completely */
/* different, and which have nothing to do with each other. When */
/* selecting `Fixed' in KDE or Gnome one gets results that appear rather */
/* random, the style changes often if one changes the size and one */
/* cannot select some fonts at all. This option makes the PCF module */
/* prepend the foundry name (plus a space) to the family name. */
/* */
/* We also check whether we have `wide' characters; all put together, we */
/* get family names like `Sony Fixed' or `Misc Fixed Wide'. */
/* */
/* If this option is activated, it can be controlled with the */
/* `no-long-family-names' property of the pcf driver module. */
/* */
#define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
/*************************************************************************/
/*************************************************************************/
/**** ****/

1
include/freetype/ftchapters.h
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@ -77,6 +77,7 @@
/* auto_hinter */
/* cff_driver */
/* tt_driver */
/* pcf_driver */
/* */
/***************************************************************************/

105
include/freetype/ftpcfdrv.h
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@ -0,0 +1,105 @@
/***************************************************************************/
/* */
/* ftpcfdrv.h */
/* */
/* FreeType API for controlling the PCF driver (specification only). */
/* */
/* Copyright 2017 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#ifndef FTPCFDRV_H_
#define FTPCFDRV_H_
#include <ft2build.h>
#include FT_FREETYPE_H
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* pcf_driver
*
* @title:
* The PCF driver
*
* @abstract:
* Controlling the PCF driver module.
*
* @description:
* While FreeType's PCF driver doesn't expose API functions by itself,
* it is possible to control its behaviour with @FT_Property_Set and
* @FT_Property_Get. Right now, there is a single property
* `no-long-family-names' available if FreeType is compiled with
* PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
*
* The PCF driver's module name is `pcf'.
*
*/
/**************************************************************************
*
* @property:
* no-long-family-names
*
* @description:
* If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling
* FreeType, the PCF driver constructs long family names.
*
* There are many PCF fonts just called `Fixed' which look completely
* different, and which have nothing to do with each other. When
* selecting `Fixed' in KDE or Gnome one gets results that appear rather
* random, the style changes often if one changes the size and one
* cannot select some fonts at all. The improve this situation, the PCF
* module prepends the foundry name (plus a space) to the family name.
* It also checks whether there are `wide' characters; all put together,
* family names like `Sony Fixed' or `Misc Fixed Wide' are constructed.
*
* If `no-long-family-names' is set, this feature gets switched off.
*
* {
* FT_Library library;
* FT_Bool no_long_family_names = TRUE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "pcf",
* "no-long-family-names",
* &no_long_family_names );
* }
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable (using values 1 and 0 for `on' and `off', respectively).
*
*/
FT_END_HEADER
#endif /* FTPCFDRV_H_ */
/* END */

2
src/pcf/pcf.h
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@ -167,6 +167,8 @@ FT_BEGIN_HEADER
{
FT_DriverRec root;
FT_Bool no_long_family_names;
} PCF_DriverRec, *PCF_Driver;

114
src/pcf/pcfdrivr.c
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@ -49,6 +49,8 @@ THE SOFTWARE.
#include FT_SERVICE_BDF_H
#include FT_SERVICE_FONT_FORMAT_H
#include FT_SERVICE_PROPERTIES_H
#include FT_PCF_DRIVER_H
/*************************************************************************/
@ -667,6 +669,110 @@ THE SOFTWARE.
};
/*
* PROPERTY SERVICE
*
*/
static FT_Error
pcf_property_set( FT_Module module, /* PCF_Driver */
const char* property_name,
const void* value,
FT_Bool value_is_string )
{
#ifdef PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
FT_Error error = FT_Err_Ok;
PCF_Driver driver = (PCF_Driver)module;
#ifndef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
FT_UNUSED( value_is_string );
#endif
if ( !ft_strcmp( property_name, "no-long-family-names" ) )
{
#ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
if ( value_is_string )
{
const char* s = (const char*)value;
long lfn = ft_strtol( s, NULL, 10 );
if ( lfn == 0 )
driver->no_long_family_names = 0;
else if ( lfn == 1 )
driver->no_long_family_names = 1;
else
return FT_THROW( Invalid_Argument );
}
else
#endif
{
FT_Bool* no_long_family_names = (FT_Bool*)value;
driver->no_long_family_names = *no_long_family_names;
}
return error;
}
#else /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
FT_UNUSED( module );
FT_UNUSED( value );
FT_UNUSED( value_is_string );
#endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
FT_TRACE0(( "pcf_property_set: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
static FT_Error
pcf_property_get( FT_Module module, /* PCF_Driver */
const char* property_name,
const void* value )
{
#ifdef PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
FT_Error error = FT_Err_Ok;
PCF_Driver driver = (PCF_Driver)module;
if ( !ft_strcmp( property_name, "no-long-family-names" ) )
{
FT_Bool no_long_family_names = driver->no_long_family_names;
FT_Bool* val = (FT_Bool*)value;
*val = no_long_family_names;
return error;
}
#else /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
FT_UNUSED( module );
FT_UNUSED( value );
#endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
FT_TRACE0(( "pcf_property_get: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
FT_DEFINE_SERVICE_PROPERTIESREC(
pcf_service_properties,
(FT_Properties_SetFunc)pcf_property_set, /* set_property */
(FT_Properties_GetFunc)pcf_property_get ) /* get_property */
/*
*
* SERVICE LIST
@ -677,6 +783,7 @@ THE SOFTWARE.
{
{ FT_SERVICE_ID_BDF, &pcf_service_bdf },
{ FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_PCF },
{ FT_SERVICE_ID_PROPERTIES, &pcf_service_properties },
{ NULL, NULL }
};
@ -694,7 +801,14 @@ THE SOFTWARE.
FT_CALLBACK_DEF( FT_Error )
pcf_driver_init( FT_Module module ) /* PCF_Driver */
{
#ifdef PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
PCF_Driver driver = (PCF_Driver)module;
driver->no_long_family_names = 0;
#else
FT_UNUSED( module );
#endif
return FT_Err_Ok;
}

98
src/pcf/pcfread.c
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@ -1393,57 +1393,75 @@ THE SOFTWARE.
prop = pcf_find_property( face, "FAMILY_NAME" );
if ( prop && prop->isString )
{
/* Prepend the foundry name plus a space to the family name. */
/* There are many fonts just called `Fixed' which look completely */
/* different, and which have nothing to do with each other. When */
/* selecting `Fixed' in KDE or Gnome one gets results that appear */
/* rather random, the style changes often if one changes the size */
/* and one cannot select some fonts at all. */
/* */
/* We also check whether we have `wide' characters; all put */
/* together, we get family names like `Sony Fixed' or `Misc Fixed */
/* Wide'. */
PCF_Property foundry_prop, point_size_prop, average_width_prop;
int l = ft_strlen( prop->value.atom ) + 1;
int wide = 0;
foundry_prop = pcf_find_property( face, "FOUNDRY" );
point_size_prop = pcf_find_property( face, "POINT_SIZE" );
average_width_prop = pcf_find_property( face, "AVERAGE_WIDTH" );
if ( point_size_prop && average_width_prop )
#ifdef PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
PCF_Driver driver = (PCF_Driver)FT_FACE_DRIVER( face );
if ( !driver->no_long_family_names )
{
if ( average_width_prop->value.l >= point_size_prop->value.l )
/* Prepend the foundry name plus a space to the family name. */
/* There are many fonts just called `Fixed' which look */
/* completely different, and which have nothing to do with each */
/* other. When selecting `Fixed' in KDE or Gnome one gets */
/* results that appear rather random, the style changes often if */
/* one changes the size and one cannot select some fonts at all. */
/* */
/* We also check whether we have `wide' characters; all put */
/* together, we get family names like `Sony Fixed' or `Misc */
/* Fixed Wide'. */
PCF_Property foundry_prop, point_size_prop, average_width_prop;
int l = ft_strlen( prop->value.atom ) + 1;
int wide = 0;
foundry_prop = pcf_find_property( face, "FOUNDRY" );
point_size_prop = pcf_find_property( face, "POINT_SIZE" );
average_width_prop = pcf_find_property( face, "AVERAGE_WIDTH" );
if ( point_size_prop && average_width_prop )
{
/* This font is at least square shaped or even wider */
wide = 1;
l += ft_strlen( " Wide" );
if ( average_width_prop->value.l >= point_size_prop->value.l )
{
/* This font is at least square shaped or even wider */
wide = 1;
l += ft_strlen( " Wide" );
}
}
}
if ( foundry_prop && foundry_prop->isString )
{
l += ft_strlen( foundry_prop->value.atom ) + 1;
if ( foundry_prop && foundry_prop->isString )
{
l += ft_strlen( foundry_prop->value.atom ) + 1;
if ( FT_NEW_ARRAY( root->family_name, l ) )
goto Exit;
if ( FT_NEW_ARRAY( root->family_name, l ) )
goto Exit;
ft_strcpy( root->family_name, foundry_prop->value.atom );
ft_strcat( root->family_name, " " );
ft_strcat( root->family_name, prop->value.atom );
}
else
{
if ( FT_NEW_ARRAY( root->family_name, l ) )
goto Exit;
ft_strcpy( root->family_name, foundry_prop->value.atom );
ft_strcat( root->family_name, " " );
ft_strcat( root->family_name, prop->value.atom );
ft_strcpy( root->family_name, prop->value.atom );
}
if ( wide )
ft_strcat( root->family_name, " Wide" );
}
else
#endif /* PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
{
if ( FT_NEW_ARRAY( root->family_name, l ) )
if ( FT_STRDUP( root->family_name, prop->value.atom ) )
goto Exit;
ft_strcpy( root->family_name, prop->value.atom );
}
if ( wide )
ft_strcat( root->family_name, " Wide" );
}
else
root->family_name = NULL;

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