font updates from John Fay

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@519 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
brianp 2004-09-23 17:48:49 +00:00
parent fc9f0b06c4
commit f4fbf7b21f
3 changed files with 47 additions and 27 deletions

View File

@ -77,8 +77,8 @@ static SFG_Font* fghFontByID( void* font )
if( font == GLUT_BITMAP_TIMES_ROMAN_24 ) if( font == GLUT_BITMAP_TIMES_ROMAN_24 )
return &fgFontTimesRoman24; return &fgFontTimesRoman24;
fgError( "font 0x%08x not found", font ); fgWarning( "font 0x%08x not found", font );
return 0; /*** NOT REACHED ***/ return 0;
} }
/* /*
@ -92,8 +92,8 @@ static SFG_StrokeFont* fghStrokeByID( void* font )
if( font == GLUT_STROKE_MONO_ROMAN ) if( font == GLUT_STROKE_MONO_ROMAN )
return &fgStrokeMonoRoman; return &fgStrokeMonoRoman;
fgError( "stroke font 0x%08x not found", font ); fgWarning( "stroke font 0x%08x not found", font );
return 0; /*** NOT REACHED ***/ return 0;
} }
@ -108,6 +108,7 @@ void FGAPIENTRY glutBitmapCharacter( void* fontID, int character )
SFG_Font* font = fghFontByID( fontID ); SFG_Font* font = fghFontByID( fontID );
freeglut_return_if_fail( ( character >= 1 )&&( character < 256 ) ); freeglut_return_if_fail( ( character >= 1 )&&( character < 256 ) );
freeglut_return_if_fail( font );
/* /*
* Find the character we want to draw (???) * Find the character we want to draw (???)
@ -132,11 +133,14 @@ void FGAPIENTRY glutBitmapCharacter( void* fontID, int character )
void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string ) void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string )
{ {
int c; unsigned char c;
int numchar = strlen( (char *) string );
SFG_Font* font = fghFontByID( fontID ); SFG_Font* font = fghFontByID( fontID );
float x = 0.0f ; float x = 0.0f ;
freeglut_return_if_fail( font );
if ( !string || ! *string )
return;
glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT ); glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT );
glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE ); glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE );
glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE ); glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE );
@ -150,7 +154,7 @@ void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string )
* A newline will simply translate the next character's insertion * A newline will simply translate the next character's insertion
* point back to the start of the line and down one line. * point back to the start of the line and down one line.
*/ */
for( c = 0; c < numchar; c++ ) while( c = *string++ )
if( string[c] == '\n' ) if( string[c] == '\n' )
{ {
glBitmap ( 0, 0, 0, 0, -x, (float) -font->Height, NULL ); glBitmap ( 0, 0, 0, 0, -x, (float) -font->Height, NULL );
@ -158,7 +162,7 @@ void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string )
} }
else /* Not an EOL, draw the bitmap character */ else /* Not an EOL, draw the bitmap character */
{ {
const GLubyte* face = font->Characters[ string[ c ] ]; const GLubyte* face = font->Characters[ c ];
glBitmap( glBitmap(
face[ 0 ], font->Height, /* Bitmap's width and height */ face[ 0 ], font->Height, /* Bitmap's width and height */
@ -181,6 +185,7 @@ int FGAPIENTRY glutBitmapWidth( void* fontID, int character )
SFG_Font* font = fghFontByID( fontID ); SFG_Font* font = fghFontByID( fontID );
freeglut_return_val_if_fail( character > 0 && character < 256, 0 ); freeglut_return_val_if_fail( character > 0 && character < 256, 0 );
freeglut_return_val_if_fail( font, 0 );
return *( font->Characters[ character ] ); return *( font->Characters[ character ] );
} }
@ -189,14 +194,18 @@ int FGAPIENTRY glutBitmapWidth( void* fontID, int character )
*/ */
int FGAPIENTRY glutBitmapLength( void* fontID, const unsigned char* string ) int FGAPIENTRY glutBitmapLength( void* fontID, const unsigned char* string )
{ {
int c, length = 0, this_line_length = 0; unsigned char c;
int length = 0, this_line_length = 0;
SFG_Font* font = fghFontByID( fontID ); SFG_Font* font = fghFontByID( fontID );
int numchar = strlen( (char *) string );
for( c = 0; c < numchar; c++ ) freeglut_return_val_if_fail( font, 0 );
if ( !string || ! *string )
return 0;
while( c = *string++ )
{ {
if( string[ c ] != '\n' )/* Not an EOL, increment length of line */ if( c != '\n' )/* Not an EOL, increment length of line */
this_line_length += *( font->Characters[ string[ c ] ]); this_line_length += *( font->Characters[ c ]);
else /* EOL; reset the length of this line */ else /* EOL; reset the length of this line */
{ {
if( length < this_line_length ) if( length < this_line_length )
@ -216,6 +225,7 @@ int FGAPIENTRY glutBitmapLength( void* fontID, const unsigned char* string )
int FGAPIENTRY glutBitmapHeight( void* fontID ) int FGAPIENTRY glutBitmapHeight( void* fontID )
{ {
SFG_Font* font = fghFontByID( fontID ); SFG_Font* font = fghFontByID( fontID );
freeglut_return_val_if_fail( font, 0 );
return font->Height; return font->Height;
} }
@ -231,6 +241,7 @@ void FGAPIENTRY glutStrokeCharacter( void* fontID, int character )
freeglut_return_if_fail( character >= 0 ); freeglut_return_if_fail( character >= 0 );
freeglut_return_if_fail( character < font->Quantity ); freeglut_return_if_fail( character < font->Quantity );
freeglut_return_if_fail( font );
schar = font->Characters[ character ]; schar = font->Characters[ character ];
freeglut_return_if_fail( schar ); freeglut_return_if_fail( schar );
@ -248,27 +259,31 @@ void FGAPIENTRY glutStrokeCharacter( void* fontID, int character )
void FGAPIENTRY glutStrokeString( void* fontID, const unsigned char *string ) void FGAPIENTRY glutStrokeString( void* fontID, const unsigned char *string )
{ {
int c, i, j; unsigned char c;
int numchar = strlen( (char *) string ); int i, j;
float length = 0.0; float length = 0.0;
SFG_StrokeFont* font = fghStrokeByID( fontID ); SFG_StrokeFont* font = fghStrokeByID( fontID );
freeglut_return_if_fail( font );
if ( !string || ! *string )
return;
/* /*
* Step through the string, drawing each character. * Step through the string, drawing each character.
* A newline will simply translate the next character's insertion * A newline will simply translate the next character's insertion
* point back to the start of the line and down one line. * point back to the start of the line and down one line.
*/ */
for( c = 0; c < numchar; c++ ) while( c = *string++ )
if( string[ c ] < font->Quantity ) if( c < font->Quantity )
{ {
if( string[ c ] == '\n' ) if( c == '\n' )
{ {
glTranslatef ( -length, -( float )( font->Height ), 0.0 ); glTranslatef ( -length, -( float )( font->Height ), 0.0 );
length = 0.0; length = 0.0;
} }
else /* Not an EOL, draw the bitmap character */ else /* Not an EOL, draw the bitmap character */
{ {
const SFG_StrokeChar *schar = font->Characters[ string[ c ] ]; const SFG_StrokeChar *schar = font->Characters[ c ];
if( schar ) if( schar )
{ {
const SFG_StrokeStrip *strip = schar->Strips; const SFG_StrokeStrip *strip = schar->Strips;
@ -302,6 +317,7 @@ int FGAPIENTRY glutStrokeWidth( void* fontID, int character )
( character < font->Quantity ), ( character < font->Quantity ),
0 0
); );
freeglut_return_val_if_fail( font, 0 );
schar = font->Characters[ character ]; schar = font->Characters[ character ];
freeglut_return_val_if_fail( schar, 0 ); freeglut_return_val_if_fail( schar, 0 );
@ -313,16 +329,19 @@ int FGAPIENTRY glutStrokeWidth( void* fontID, int character )
*/ */
int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string ) int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string )
{ {
int c; unsigned char c;
float length = 0.0; float length = 0.0;
float this_line_length = 0.0; float this_line_length = 0.0;
SFG_StrokeFont* font = fghStrokeByID( fontID ); SFG_StrokeFont* font = fghStrokeByID( fontID );
int numchar = strlen( (char *) string );
for( c = 0; c < numchar; c++ ) freeglut_return_val_if_fail( font, 0 );
if( string[ c ] < font->Quantity ) if ( !string || ! *string )
return 0;
while( c = *string++ )
if( c < font->Quantity )
{ {
if( string[ c ] == '\n' ) /* EOL; reset the length of this line */ if( c == '\n' ) /* EOL; reset the length of this line */
{ {
if( length < this_line_length ) if( length < this_line_length )
length = this_line_length; length = this_line_length;
@ -330,7 +349,7 @@ int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string )
} }
else /* Not an EOL, increment the length of this line */ else /* Not an EOL, increment the length of this line */
{ {
const SFG_StrokeChar *schar = font->Characters[ string[ c ] ]; const SFG_StrokeChar *schar = font->Characters[ c ];
if( schar ) if( schar )
this_line_length += schar->Right; this_line_length += schar->Right;
} }
@ -346,6 +365,7 @@ int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string )
GLfloat FGAPIENTRY glutStrokeHeight( void* fontID ) GLfloat FGAPIENTRY glutStrokeHeight( void* fontID )
{ {
SFG_StrokeFont* font = fghStrokeByID( fontID ); SFG_StrokeFont* font = fghStrokeByID( fontID );
freeglut_return_val_if_fail( font, 0.0 );
return font->Height; return font->Height;
} }

View File

@ -5,7 +5,7 @@
* *
* Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
* Written by Pawel W. Olszta, <olszta@sourceforge.net> * Written by Pawel W. Olszta, <olszta@sourceforge.net>
* Creation date: ????? * Creation date: Thu Dec 16 1999
* *
* Permission is hereby granted, free of charge, to any person obtaining a * Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"), * copy of this software and associated documentation files (the "Software"),

View File

@ -5,7 +5,7 @@
* *
* Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
* Written by Pawel W. Olszta, <olszta@sourceforge.net> * Written by Pawel W. Olszta, <olszta@sourceforge.net>
* Creation date: ????? * Creation date: Thu Dec 16 1999
* *
* Permission is hereby granted, free of charge, to any person obtaining a * Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"), * copy of this software and associated documentation files (the "Software"),