-/*\r
- * freeglut_font.c\r
- *\r
- * Bitmap and stroke fonts displaying.\r
- *\r
- * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.\r
- * Written by Pawel W. Olszta, <olszta@sourceforge.net>\r
- * Creation date: Thu Dec 16 1999\r
- *\r
- * Permission is hereby granted, free of charge, to any person obtaining a\r
- * copy of this software and associated documentation files (the "Software"),\r
- * to deal in the Software without restriction, including without limitation\r
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,\r
- * and/or sell copies of the Software, and to permit persons to whom the\r
- * Software is furnished to do so, subject to the following conditions:\r
- *\r
- * The above copyright notice and this permission notice shall be included\r
- * in all copies or substantial portions of the Software.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS\r
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r
- * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
- */\r
-\r
-#include <GL/freeglut.h>\r
-#include "freeglut_internal.h"\r
-\r
-/*\r
- * TODO BEFORE THE STABLE RELEASE:\r
- *\r
- * Test things out ...\r
- */\r
-\r
-/* -- IMPORT DECLARATIONS -------------------------------------------------- */\r
-\r
-/*\r
- * These are the font faces defined in freeglut_font_data.c file:\r
- */\r
-extern SFG_Font fgFontFixed8x13;\r
-extern SFG_Font fgFontFixed9x15;\r
-extern SFG_Font fgFontHelvetica10;\r
-extern SFG_Font fgFontHelvetica12;\r
-extern SFG_Font fgFontHelvetica18;\r
-extern SFG_Font fgFontTimesRoman10;\r
-extern SFG_Font fgFontTimesRoman24;\r
-extern SFG_StrokeFont fgStrokeRoman;\r
-extern SFG_StrokeFont fgStrokeMonoRoman;\r
-\r
-\r
-/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */\r
-\r
-/*\r
- * Matches a font ID with a SFG_Font structure pointer.\r
- * This was changed to match the GLUT header style.\r
- */\r
-static SFG_Font* fghFontByID( void* font )\r
-{\r
- if( font == GLUT_BITMAP_8_BY_13 )\r
- return &fgFontFixed8x13;\r
- if( font == GLUT_BITMAP_9_BY_15 )\r
- return &fgFontFixed9x15;\r
- if( font == GLUT_BITMAP_HELVETICA_10 )\r
- return &fgFontHelvetica10;\r
- if( font == GLUT_BITMAP_HELVETICA_12 )\r
- return &fgFontHelvetica12;\r
- if( font == GLUT_BITMAP_HELVETICA_18 )\r
- return &fgFontHelvetica18;\r
- if( font == GLUT_BITMAP_TIMES_ROMAN_10 )\r
- return &fgFontTimesRoman10;\r
- if( font == GLUT_BITMAP_TIMES_ROMAN_24 )\r
- return &fgFontTimesRoman24;\r
-\r
- fgWarning( "font 0x%08x not found", font );\r
- return 0;\r
-}\r
-\r
-/*\r
- * Matches a font ID with a SFG_StrokeFont structure pointer.\r
- * This was changed to match the GLUT header style.\r
- */\r
-static SFG_StrokeFont* fghStrokeByID( void* font )\r
-{\r
- if( font == GLUT_STROKE_ROMAN )\r
- return &fgStrokeRoman;\r
- if( font == GLUT_STROKE_MONO_ROMAN )\r
- return &fgStrokeMonoRoman;\r
-\r
- fgWarning( "stroke font 0x%08x not found", font );\r
- return 0;\r
-}\r
-\r
-\r
-/* -- INTERFACE FUNCTIONS -------------------------------------------------- */\r
-\r
-/*\r
- * Draw a bitmap character\r
- */\r
-void FGAPIENTRY glutBitmapCharacter( void* fontID, int character )\r
-{\r
- const GLubyte* face;\r
- SFG_Font* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapCharacter" );\r
- font = fghFontByID( fontID );\r
- freeglut_return_if_fail( ( character >= 1 )&&( character < 256 ) );\r
- freeglut_return_if_fail( font );\r
-\r
- /*\r
- * Find the character we want to draw (???)\r
- */\r
- face = font->Characters[ character ];\r
-\r
- glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT );\r
- glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE );\r
- glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE );\r
- glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 );\r
- glPixelStorei( GL_UNPACK_SKIP_ROWS, 0 );\r
- glPixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );\r
- glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );\r
- glBitmap(\r
- face[ 0 ], font->Height, /* The bitmap's width and height */\r
- font->xorig, font->yorig, /* The origin in the font glyph */\r
- ( float )( face[ 0 ] ), 0.0, /* The raster advance -- inc. x,y */\r
- ( face + 1 ) /* The packed bitmap data... */\r
- );\r
- glPopClientAttrib( );\r
-}\r
-\r
-void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string )\r
-{\r
- unsigned char c;\r
- float x = 0.0f ;\r
- SFG_Font* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapString" );\r
- font = fghFontByID( fontID );\r
- freeglut_return_if_fail( font );\r
- if ( !string || ! *string )\r
- return;\r
-\r
- glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT );\r
- glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE );\r
- glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE );\r
- glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 );\r
- glPixelStorei( GL_UNPACK_SKIP_ROWS, 0 );\r
- glPixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );\r
- glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );\r
-\r
- /*\r
- * Step through the string, drawing each character.\r
- * A newline will simply translate the next character's insertion\r
- * point back to the start of the line and down one line.\r
- */\r
- while( ( c = *string++) )\r
- if( c == '\n' )\r
- {\r
- glBitmap ( 0, 0, 0, 0, -x, (float) -font->Height, NULL );\r
- x = 0.0f;\r
- }\r
- else /* Not an EOL, draw the bitmap character */\r
- {\r
- const GLubyte* face = font->Characters[ c ];\r
-\r
- glBitmap(\r
- face[ 0 ], font->Height, /* Bitmap's width and height */\r
- font->xorig, font->yorig, /* The origin in the font glyph */\r
- ( float )( face[ 0 ] ), 0.0, /* The raster advance; inc. x,y */\r
- ( face + 1 ) /* The packed bitmap data... */\r
- );\r
-\r
- x += ( float )( face[ 0 ] );\r
- }\r
-\r
- glPopClientAttrib( );\r
-}\r
-\r
-/*\r
- * Returns the width in pixels of a font's character\r
- */\r
-int FGAPIENTRY glutBitmapWidth( void* fontID, int character )\r
-{\r
- SFG_Font* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapWidth" );\r
- font = fghFontByID( fontID );\r
- freeglut_return_val_if_fail( character > 0 && character < 256, 0 );\r
- freeglut_return_val_if_fail( font, 0 );\r
- return *( font->Characters[ character ] );\r
-}\r
-\r
-/*\r
- * Return the width of a string drawn using a bitmap font\r
- */\r
-int FGAPIENTRY glutBitmapLength( void* fontID, const unsigned char* string )\r
-{\r
- unsigned char c;\r
- int length = 0, this_line_length = 0;\r
- SFG_Font* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapLength" );\r
- font = fghFontByID( fontID );\r
- freeglut_return_val_if_fail( font, 0 );\r
- if ( !string || ! *string )\r
- return 0;\r
-\r
- while( ( c = *string++) )\r
- {\r
- if( c != '\n' )/* Not an EOL, increment length of line */\r
- this_line_length += *( font->Characters[ c ]);\r
- else /* EOL; reset the length of this line */\r
- {\r
- if( length < this_line_length )\r
- length = this_line_length;\r
- this_line_length = 0;\r
- }\r
- }\r
- if ( length < this_line_length )\r
- length = this_line_length;\r
-\r
- return length;\r
-}\r
-\r
-/*\r
- * Returns the height of a bitmap font\r
- */\r
-int FGAPIENTRY glutBitmapHeight( void* fontID )\r
-{\r
- SFG_Font* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapHeight" );\r
- font = fghFontByID( fontID );\r
- freeglut_return_val_if_fail( font, 0 );\r
- return font->Height;\r
-}\r
-\r
-/*\r
- * Draw a stroke character\r
- */\r
-void FGAPIENTRY glutStrokeCharacter( void* fontID, int character )\r
-{\r
- const SFG_StrokeChar *schar;\r
- const SFG_StrokeStrip *strip;\r
- int i, j;\r
- SFG_StrokeFont* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeCharacter" );\r
- font = fghStrokeByID( fontID );\r
- freeglut_return_if_fail( character >= 0 );\r
- freeglut_return_if_fail( character < font->Quantity );\r
- freeglut_return_if_fail( font );\r
-\r
- schar = font->Characters[ character ];\r
- freeglut_return_if_fail( schar );\r
- strip = schar->Strips;\r
-\r
- for( i = 0; i < schar->Number; i++, strip++ )\r
- {\r
- glBegin( GL_LINE_STRIP );\r
- for( j = 0; j < strip->Number; j++ )\r
- glVertex2f( strip->Vertices[ j ].X, strip->Vertices[ j ].Y );\r
- glEnd( );\r
- glBegin( GL_POINTS );\r
- for( j = 0; j < strip->Number; j++ )\r
- glVertex2f( strip->Vertices[ j ].X, strip->Vertices[ j ].Y );\r
- glEnd( );\r
- }\r
- glTranslatef( schar->Right, 0.0, 0.0 );\r
-}\r
-\r
-void FGAPIENTRY glutStrokeString( void* fontID, const unsigned char *string )\r
-{\r
- unsigned char c;\r
- int i, j;\r
- float length = 0.0;\r
- SFG_StrokeFont* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeString" );\r
- font = fghStrokeByID( fontID );\r
- freeglut_return_if_fail( font );\r
- if ( !string || ! *string )\r
- return;\r
-\r
- /*\r
- * Step through the string, drawing each character.\r
- * A newline will simply translate the next character's insertion\r
- * point back to the start of the line and down one line.\r
- */\r
- while( ( c = *string++) )\r
- if( c < font->Quantity )\r
- {\r
- if( c == '\n' )\r
- {\r
- glTranslatef ( -length, -( float )( font->Height ), 0.0 );\r
- length = 0.0;\r
- }\r
- else /* Not an EOL, draw the bitmap character */\r
- {\r
- const SFG_StrokeChar *schar = font->Characters[ c ];\r
- if( schar )\r
- {\r
- const SFG_StrokeStrip *strip = schar->Strips;\r
-\r
- for( i = 0; i < schar->Number; i++, strip++ )\r
- {\r
- glBegin( GL_LINE_STRIP );\r
- for( j = 0; j < strip->Number; j++ )\r
- glVertex2f( strip->Vertices[ j ].X,\r
- strip->Vertices[ j ].Y);\r
-\r
- glEnd( );\r
- }\r
-\r
- length += schar->Right;\r
- glTranslatef( schar->Right, 0.0, 0.0 );\r
- }\r
- }\r
- }\r
-}\r
-\r
-/*\r
- * Return the width in pixels of a stroke character\r
- */\r
-int FGAPIENTRY glutStrokeWidth( void* fontID, int character )\r
-{\r
- const SFG_StrokeChar *schar;\r
- SFG_StrokeFont* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeWidth" );\r
- font = fghStrokeByID( fontID );\r
- freeglut_return_val_if_fail( ( character >= 0 ) &&\r
- ( character < font->Quantity ),\r
- 0\r
- );\r
- freeglut_return_val_if_fail( font, 0 );\r
- schar = font->Characters[ character ];\r
- freeglut_return_val_if_fail( schar, 0 );\r
-\r
- return ( int )( schar->Right + 0.5 );\r
-}\r
-\r
-/*\r
- * Return the width of a string drawn using a stroke font\r
- */\r
-int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string )\r
-{\r
- unsigned char c;\r
- float length = 0.0;\r
- float this_line_length = 0.0;\r
- SFG_StrokeFont* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeLength" );\r
- font = fghStrokeByID( fontID );\r
- freeglut_return_val_if_fail( font, 0 );\r
- if ( !string || ! *string )\r
- return 0;\r
-\r
- while( ( c = *string++) )\r
- if( c < font->Quantity )\r
- {\r
- if( c == '\n' ) /* EOL; reset the length of this line */\r
- {\r
- if( length < this_line_length )\r
- length = this_line_length;\r
- this_line_length = 0.0;\r
- }\r
- else /* Not an EOL, increment the length of this line */\r
- {\r
- const SFG_StrokeChar *schar = font->Characters[ c ];\r
- if( schar )\r
- this_line_length += schar->Right;\r
- }\r
- }\r
- if( length < this_line_length )\r
- length = this_line_length;\r
- return( int )( length + 0.5 );\r
-}\r
-\r
-/*\r
- * Returns the height of a stroke font\r
- */\r
-GLfloat FGAPIENTRY glutStrokeHeight( void* fontID )\r
-{\r
- SFG_StrokeFont* font;\r
- FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeHeight" );\r
- font = fghStrokeByID( fontID );\r
- freeglut_return_val_if_fail( font, 0.0 );\r
- return font->Height;\r
-}\r
-\r
-/*** END OF FILE ***/\r
+/*
+ * freeglut_font.c
+ *
+ * Bitmap and stroke fonts displaying.
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 16 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <GL/freeglut.h>
+#include "freeglut_internal.h"
+
+/*
+ * TODO BEFORE THE STABLE RELEASE:
+ *
+ * Test things out ...
+ */
+
+/* -- IMPORT DECLARATIONS -------------------------------------------------- */
+
+/*
+ * These are the font faces defined in freeglut_font_data.c file:
+ */
+extern SFG_Font fgFontFixed8x13;
+extern SFG_Font fgFontFixed9x15;
+extern SFG_Font fgFontHelvetica10;
+extern SFG_Font fgFontHelvetica12;
+extern SFG_Font fgFontHelvetica18;
+extern SFG_Font fgFontTimesRoman10;
+extern SFG_Font fgFontTimesRoman24;
+extern SFG_StrokeFont fgStrokeRoman;
+extern SFG_StrokeFont fgStrokeMonoRoman;
+
+
+/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
+
+/*
+ * Matches a font ID with a SFG_Font structure pointer.
+ * This was changed to match the GLUT header style.
+ */
+static SFG_Font* fghFontByID( void* font )
+{
+ if( font == GLUT_BITMAP_8_BY_13 )
+ return &fgFontFixed8x13;
+ if( font == GLUT_BITMAP_9_BY_15 )
+ return &fgFontFixed9x15;
+ if( font == GLUT_BITMAP_HELVETICA_10 )
+ return &fgFontHelvetica10;
+ if( font == GLUT_BITMAP_HELVETICA_12 )
+ return &fgFontHelvetica12;
+ if( font == GLUT_BITMAP_HELVETICA_18 )
+ return &fgFontHelvetica18;
+ if( font == GLUT_BITMAP_TIMES_ROMAN_10 )
+ return &fgFontTimesRoman10;
+ if( font == GLUT_BITMAP_TIMES_ROMAN_24 )
+ return &fgFontTimesRoman24;
+
+ fgWarning( "font 0x%08x not found", font );
+ return 0;
+}
+
+/*
+ * Matches a font ID with a SFG_StrokeFont structure pointer.
+ * This was changed to match the GLUT header style.
+ */
+static SFG_StrokeFont* fghStrokeByID( void* font )
+{
+ if( font == GLUT_STROKE_ROMAN )
+ return &fgStrokeRoman;
+ if( font == GLUT_STROKE_MONO_ROMAN )
+ return &fgStrokeMonoRoman;
+
+ fgWarning( "stroke font 0x%08x not found", font );
+ return 0;
+}
+
+
+/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
+
+/*
+ * Draw a bitmap character
+ */
+void FGAPIENTRY glutBitmapCharacter( void* fontID, int character )
+{
+ const GLubyte* face;
+ SFG_Font* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapCharacter" );
+ font = fghFontByID( fontID );
+ freeglut_return_if_fail( ( character >= 1 )&&( character < 256 ) );
+ freeglut_return_if_fail( font );
+
+ /*
+ * Find the character we want to draw (???)
+ */
+ face = font->Characters[ character ];
+
+ glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT );
+ glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE );
+ glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE );
+ glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
+ glPixelStorei( GL_UNPACK_SKIP_ROWS, 0 );
+ glPixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );
+ glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
+ glBitmap(
+ face[ 0 ], font->Height, /* The bitmap's width and height */
+ font->xorig, font->yorig, /* The origin in the font glyph */
+ ( float )( face[ 0 ] ), 0.0, /* The raster advance -- inc. x,y */
+ ( face + 1 ) /* The packed bitmap data... */
+ );
+ glPopClientAttrib( );
+}
+
+void FGAPIENTRY glutBitmapString( void* fontID, const unsigned char *string )
+{
+ unsigned char c;
+ float x = 0.0f ;
+ SFG_Font* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapString" );
+ font = fghFontByID( fontID );
+ freeglut_return_if_fail( font );
+ if ( !string || ! *string )
+ return;
+
+ glPushClientAttrib( GL_CLIENT_PIXEL_STORE_BIT );
+ glPixelStorei( GL_UNPACK_SWAP_BYTES, GL_FALSE );
+ glPixelStorei( GL_UNPACK_LSB_FIRST, GL_FALSE );
+ glPixelStorei( GL_UNPACK_ROW_LENGTH, 0 );
+ glPixelStorei( GL_UNPACK_SKIP_ROWS, 0 );
+ glPixelStorei( GL_UNPACK_SKIP_PIXELS, 0 );
+ glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
+
+ /*
+ * Step through the string, drawing each character.
+ * A newline will simply translate the next character's insertion
+ * point back to the start of the line and down one line.
+ */
+ while( ( c = *string++) )
+ if( c == '\n' )
+ {
+ glBitmap ( 0, 0, 0, 0, -x, (float) -font->Height, NULL );
+ x = 0.0f;
+ }
+ else /* Not an EOL, draw the bitmap character */
+ {
+ const GLubyte* face = font->Characters[ c ];
+
+ glBitmap(
+ face[ 0 ], font->Height, /* Bitmap's width and height */
+ font->xorig, font->yorig, /* The origin in the font glyph */
+ ( float )( face[ 0 ] ), 0.0, /* The raster advance; inc. x,y */
+ ( face + 1 ) /* The packed bitmap data... */
+ );
+
+ x += ( float )( face[ 0 ] );
+ }
+
+ glPopClientAttrib( );
+}
+
+/*
+ * Returns the width in pixels of a font's character
+ */
+int FGAPIENTRY glutBitmapWidth( void* fontID, int character )
+{
+ SFG_Font* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapWidth" );
+ font = fghFontByID( fontID );
+ freeglut_return_val_if_fail( character > 0 && character < 256, 0 );
+ freeglut_return_val_if_fail( font, 0 );
+ return *( font->Characters[ character ] );
+}
+
+/*
+ * Return the width of a string drawn using a bitmap font
+ */
+int FGAPIENTRY glutBitmapLength( void* fontID, const unsigned char* string )
+{
+ unsigned char c;
+ int length = 0, this_line_length = 0;
+ SFG_Font* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapLength" );
+ font = fghFontByID( fontID );
+ freeglut_return_val_if_fail( font, 0 );
+ if ( !string || ! *string )
+ return 0;
+
+ while( ( c = *string++) )
+ {
+ if( c != '\n' )/* Not an EOL, increment length of line */
+ this_line_length += *( font->Characters[ c ]);
+ else /* EOL; reset the length of this line */
+ {
+ if( length < this_line_length )
+ length = this_line_length;
+ this_line_length = 0;
+ }
+ }
+ if ( length < this_line_length )
+ length = this_line_length;
+
+ return length;
+}
+
+/*
+ * Returns the height of a bitmap font
+ */
+int FGAPIENTRY glutBitmapHeight( void* fontID )
+{
+ SFG_Font* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutBitmapHeight" );
+ font = fghFontByID( fontID );
+ freeglut_return_val_if_fail( font, 0 );
+ return font->Height;
+}
+
+/*
+ * Draw a stroke character
+ */
+void FGAPIENTRY glutStrokeCharacter( void* fontID, int character )
+{
+ const SFG_StrokeChar *schar;
+ const SFG_StrokeStrip *strip;
+ int i, j;
+ SFG_StrokeFont* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeCharacter" );
+ font = fghStrokeByID( fontID );
+ freeglut_return_if_fail( character >= 0 );
+ freeglut_return_if_fail( character < font->Quantity );
+ freeglut_return_if_fail( font );
+
+ schar = font->Characters[ character ];
+ freeglut_return_if_fail( schar );
+ strip = schar->Strips;
+
+ for( i = 0; i < schar->Number; i++, strip++ )
+ {
+ glBegin( GL_LINE_STRIP );
+ for( j = 0; j < strip->Number; j++ )
+ glVertex2f( strip->Vertices[ j ].X, strip->Vertices[ j ].Y );
+ glEnd( );
+ glBegin( GL_POINTS );
+ for( j = 0; j < strip->Number; j++ )
+ glVertex2f( strip->Vertices[ j ].X, strip->Vertices[ j ].Y );
+ glEnd( );
+ }
+ glTranslatef( schar->Right, 0.0, 0.0 );
+}
+
+void FGAPIENTRY glutStrokeString( void* fontID, const unsigned char *string )
+{
+ unsigned char c;
+ int i, j;
+ float length = 0.0;
+ SFG_StrokeFont* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeString" );
+ font = fghStrokeByID( fontID );
+ freeglut_return_if_fail( font );
+ if ( !string || ! *string )
+ return;
+
+ /*
+ * Step through the string, drawing each character.
+ * A newline will simply translate the next character's insertion
+ * point back to the start of the line and down one line.
+ */
+ while( ( c = *string++) )
+ if( c < font->Quantity )
+ {
+ if( c == '\n' )
+ {
+ glTranslatef ( -length, -( float )( font->Height ), 0.0 );
+ length = 0.0;
+ }
+ else /* Not an EOL, draw the bitmap character */
+ {
+ const SFG_StrokeChar *schar = font->Characters[ c ];
+ if( schar )
+ {
+ const SFG_StrokeStrip *strip = schar->Strips;
+
+ for( i = 0; i < schar->Number; i++, strip++ )
+ {
+ glBegin( GL_LINE_STRIP );
+ for( j = 0; j < strip->Number; j++ )
+ glVertex2f( strip->Vertices[ j ].X,
+ strip->Vertices[ j ].Y);
+
+ glEnd( );
+ }
+
+ length += schar->Right;
+ glTranslatef( schar->Right, 0.0, 0.0 );
+ }
+ }
+ }
+}
+
+/*
+ * Return the width in pixels of a stroke character
+ */
+int FGAPIENTRY glutStrokeWidth( void* fontID, int character )
+{
+ const SFG_StrokeChar *schar;
+ SFG_StrokeFont* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeWidth" );
+ font = fghStrokeByID( fontID );
+ freeglut_return_val_if_fail( ( character >= 0 ) &&
+ ( character < font->Quantity ),
+ 0
+ );
+ freeglut_return_val_if_fail( font, 0 );
+ schar = font->Characters[ character ];
+ freeglut_return_val_if_fail( schar, 0 );
+
+ return ( int )( schar->Right + 0.5 );
+}
+
+/*
+ * Return the width of a string drawn using a stroke font
+ */
+int FGAPIENTRY glutStrokeLength( void* fontID, const unsigned char* string )
+{
+ unsigned char c;
+ float length = 0.0;
+ float this_line_length = 0.0;
+ SFG_StrokeFont* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeLength" );
+ font = fghStrokeByID( fontID );
+ freeglut_return_val_if_fail( font, 0 );
+ if ( !string || ! *string )
+ return 0;
+
+ while( ( c = *string++) )
+ if( c < font->Quantity )
+ {
+ if( c == '\n' ) /* EOL; reset the length of this line */
+ {
+ if( length < this_line_length )
+ length = this_line_length;
+ this_line_length = 0.0;
+ }
+ else /* Not an EOL, increment the length of this line */
+ {
+ const SFG_StrokeChar *schar = font->Characters[ c ];
+ if( schar )
+ this_line_length += schar->Right;
+ }
+ }
+ if( length < this_line_length )
+ length = this_line_length;
+ return( int )( length + 0.5 );
+}
+
+/*
+ * Returns the height of a stroke font
+ */
+GLfloat FGAPIENTRY glutStrokeHeight( void* fontID )
+{
+ SFG_StrokeFont* font;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutStrokeHeight" );
+ font = fghStrokeByID( fontID );
+ freeglut_return_val_if_fail( font, 0.0 );
+ return font->Height;
+}
+
+/*** END OF FILE ***/
projects / freeglut / blobdiff