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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.
This commit is contained in:
Werner Lemberg 2017-01-09 11:30:32 +01:00
parent f837a50ec3
commit 08fd250e1a
10 changed files with 397 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
ChangeLog
View File

@ -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
View File

@ -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
View File

@ -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
View File

@ -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
View File

@ -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
View File

@ -77,6 +77,7 @@
/* auto_hinter */
/* cff_driver */
/* tt_driver */
/* pcf_driver */
/* */
/***************************************************************************/

105
include/freetype/ftpcfdrv.h Normal file
View File

@ -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
View File

@ -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
View File

@ -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;
}

92
src/pcf/pcfread.c
View File

@ -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;
#ifdef PCF_CONFIG_OPTION_LONG_FAMILY_NAMES
PCF_Driver driver = (PCF_Driver)FT_FACE_DRIVER( face );
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 )
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 );
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, 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;