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- (*
- * Title: colourtran.h
- * Purpose: C interface to the ColourTrans SWIs
- *
- *)
-
- #ifndef __colourtran_h
- #define __colourtran_h
-
- #ifndef __os_h
- #include "os.h"
- #endif
-
- #ifndef __wimp_h
- #include "wimp.h"
- #endif
-
- #ifndef __font_h
- #include "font.h"
- #endif
-
-
- (* ----------------------- colourtran_select_table -------------------------
- * Description: Sets up a translation table in a buffer, given a source
- * mode and palette, and a destination mode and palette.
- *
- * Parameters: int source_mode -- source mode
- * wimp_paletteword *source_palette -- source palette
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * void *buffer -- pointer to store for the table.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_select_table(source_mode : integer;
- source_palette : wimp_paletteword_ptr;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- buffer : pointer) : os_error; extern;
-
-
- (* ---------------------- colourtran_select_GCOLtable ----------------------
- * Description: Sets up a list of GCOLs in a buffer, given a source
- * mode and palette, and a destination mode and palette.
- *
- * Parameters: int source_mode -- source mode
- * wimp_paletteword *source_palette -- source palette
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * void *buffer -- pointer to store for the list of GCOLs.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_select_GCOLtable(source_mode : integer;
- source_palette : wimp_paletteword_ptr;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- buffer : pointer) : os_error; extern;
-
-
- (* ------------------------- colourtran_returnGCOL -------------------------
- * Description: Informs caller of the closest GCOL in the current mode
- * to a given palette entry.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int *gcol -- returned GCOL value.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_returnGCOL(entry : wimp_paletteword;
- var gcol : integer) : os_error; extern;
-
-
- (* ------------------------ colourtran_setGCOL -----------------------------
- * Description: Informs caller of the closest GCOL in the current mode
- * to a given palette entry, and also sets the GCOL.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int fore_back -- set to 0 for foreground,
- * set to 128 for background
- * int gcol_in -- GCOL action
- * int *gcol_out -- returned closest GCOL.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_setGCOL(entry : wimp_paletteword;
- fore_back : integer;
- gcol_in : integer;
- var gcol_out : integer) : os_error; extern;
-
-
- (* ---------------------- colourtran_return_colournumber -------------------
- * Description: Informs caller of the closeset colour number to a given
- * palette entry, in the current mode and palette
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int *col -- returned colour number.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_colournumber(entry : wimp_paletteword;
- var gcol : integer) : os_error; extern;
-
-
- (* --------------------- colourtran_return_GCOLformode ---------------------
- * Description: Informs caller of the closest GCOL to a given palette
- * entry, destination mode and destination palette.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * int *gcol -- returned closest GCOL.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_GCOLformode(entry : wimp_paletteword;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- var gcol : integer) : os_error; extern;
-
-
- (* ------------------ colourtran_return_colourformode ----------------------
- * Description: Informs caller of the closest colour number to a given
- * palette entry, destination mode and destination palette.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * int *col -- returned closest colour number.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_colourformode(entry : wimp_paletteword;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- var col : integer) : os_error; extern;
-
-
- (* ----------------------- colourtran_return_OppGCOL -----------------------
- * Description: Informs caller of the furthest GCOL in the current mode
- * from a given palette entry.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int *gcol -- returned GCOL value.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_OppGCOL(entry : wimp_paletteword;
- var gcol : integer) : os_error; extern;
-
-
- (* ------------------------ colourtran_setOppGCOL --------------------------
- * Description: Informs caller of the furthest GCOL in the current mode
- * from a given palette entry, and also sets the GCOL.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int fore_back -- set to 0 for foreground,
- * set to 128 for background
- * int gcol_in -- GCOL action
- * int *gcol_out -- returned furthest GCOL.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_setOppGCOL(entry : wimp_paletteword;
- fore_back : integer;
- gcol_in : integer;
- var gcol_out : integer) : os_error; extern;
-
-
- (* ---------------------- colourtran_return_Oppcolournumber ----------------
- * Description: Informs caller of the furthest colour number from a given
- * palette entry, in the current mode and palette
- *
- * Parameters: wimp_paletteword -- the palette entry
- * int *col -- returned colour number.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_Oppcolournumber(entry : wimp_paletteword;
- var col : integer) : os_error; extern;
-
-
- (* --------------------- colourtran_return_OppGCOLformode ------------------
- * Description: Informs caller of the furthest GCOL from a given palette
- * entry, destination mode and destination palette.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * int *gcol -- returned furthest GCOL.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_OppGCOLformode(entry : wimp_paletteword;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- var gcol : integer) : os_error; extern;
-
-
- (* ------------------ colourtran_return_Oppcolourformode -------------------
- * Description: Informs caller of the furthest colour number from a given
- * palette entry, destination mode and destination palette.
- *
- * Parameters: wimp_paletteword entry -- the palette entry
- * int dest_mode -- destination mode
- * wimp_paletteword *dest_palette -- destination palette
- * int *col -- returned furthest colour number.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_return_Oppcolourformode(entry : wimp_paletteword;
- dest_mode : integer;
- dest_palette : wimp_paletteword_ptr;
- var col : integer) : os_error; extern;
-
-
- (* ---------------------- colourtran_GCOL_tocolournumber -------------------
- * Description: Translates a GCOL to a colournumber (assuming 256-colour
- * mode).
- *
- * Parameters: int gcol -- the GCOL
- * int *col -- returned colour number.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_GCOL_tocolournumber(gcol : integer;
- var col : integer) : os_error; extern;
-
-
- (* ----------------- colourtran_colournumbertoGCOL -------------------------
- * Description: Translates a colour number to a GCOL (assuming 256-colour
- * mode).
- *
- * Parameters: int col -- the colour number
- * int *gcol -- the returned GCOL.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_colournumbertoGCOL(col : integer;
- var gcol : integer) : os_error; extern;
-
-
- (* ------------------ colourtran_returnfontcolours -------------------------
- * Description: Informs caller of font colours to match given colours.
- *
- * Parameters: font *handle -- the font's handle
- * wimp_paletteword *backgnd -- background palette entry
- * wimp_paletteword *foregnd -- foreground palette entry
- * int *max_offset
- * Returns: possible error condition.
- * Other Info: Closest approximations to fore/background colours will be
- * set, and as many intermediate colours as possible (up to
- * a maximum of *max_offset). Values are returned through
- * the parameters.
- *
- *)
- procedure colourtran_returnfontcolours(var handle : font;
- backgnd, foregnd : wimp_paletteword_ptr;
- var max_offset : integer) : os_error; extern;
-
-
- (* -------------------- colourtran_setfontcolours --------------------------
- * Description: Informs caller of font colours to match given colours, and
- * calls font_setfontcolour() to set them.
- *
- * Parameters: font *handle -- the font's handle
- * wimp_paletteword *backgnd -- background palette entry
- * wimp_paletteword *foregnd -- foreground palette entry
- * int *max_offset
- * Returns: possible error condition.
- * Other Info: Closest approximations to fore/background colours will be
- * set, and as many intermediate colours as possible (up to
- * a maximum of *max_offset). Values are returned through
- * the parameters. Font_setfontcolours() is then called with
- * these as parameters.
- *
- *)
- procedure colourtran_setfontcolours(var handle : font;
- backgnd, foregnd : wimp_paletteword_ptr;
- var max_offset : integer) : os_error; extern;
-
-
- (* ----------------------- colourtran_invalidate_cache ---------------------
- * Description: To be called when the palette has changed since a call was
- * last made to a function in this module.
- *
- * Parameters: void.
- * Returns: possible error condition.
- * Other Info: none.
- *
- *)
- procedure colourtran_invalidate_cache : os_error; extern;
-
-
- (* new SWIs *)
-
- (* ----------------------- colourtran_convert_device_colour ----------------
- * Description: Convert from a device colour to a standard RGB colour
- *
- * Parameters: wimp_paletteword device colour
- wimp_paletteword *rgb colour
- * Returns: possible error condition.
- * Other Info: Uses the current calibration to convert from a device
- * colour to a standard RGB palette entry
- *
- *)
- procedure colourtran_convert_device_colour(device : wimp_paletteword;
- rgb : wimp_paletteword_ptr) : os_error; extern;
-
- #endif
- (* end colourtran.h *)
-