135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
/*
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* PostScript colour functions
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*
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* Copyright 1998 Huw D M Davies
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*
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*/
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#include "psdrv.h"
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#include "debug.h"
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/**********************************************************************
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* PSDRV_CmpColor
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*
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* Return TRUE if col1 == col2
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*/
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BOOL PSDRV_CmpColor(PSCOLOR *col1, PSCOLOR *col2)
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{
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if(col1->type != col2->type)
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return FALSE;
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switch(col1->type) {
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case PSCOLOR_GRAY:
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if(col1->value.gray.i == col2->value.gray.i)
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return TRUE;
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break;
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case PSCOLOR_RGB:
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if( col1->value.rgb.r == col2->value.rgb.r &&
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col1->value.rgb.g == col2->value.rgb.g &&
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col1->value.rgb.b == col2->value.rgb.b )
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return TRUE;
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break;
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default:
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ERR(psdrv, "Unknown colour type %d\n", col1->type);
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}
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return FALSE;
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}
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/**********************************************************************
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* PSDRV_CopyColor
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*
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* Copies col2 into col1. Return FALSE on error.
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*/
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BOOL PSDRV_CopyColor(PSCOLOR *col1, PSCOLOR *col2)
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{
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switch(col2->type) {
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case PSCOLOR_GRAY:
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col1->value.gray.i = col2->value.gray.i;
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break;
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case PSCOLOR_RGB:
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col1->value.rgb.r = col2->value.rgb.r;
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col1->value.rgb.g = col2->value.rgb.g;
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col1->value.rgb.b = col2->value.rgb.b;
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break;
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default:
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ERR(psdrv, "Unknown colour type %d\n", col1->type);
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return FALSE;
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}
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col1->type = col2->type;
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return TRUE;
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}
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/**********************************************************************
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* PSDRV_CreateColor
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*
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* Creates a PostScript colour from a COLORREF.
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* Result is grey scale if ColorDevice field of ppd is FALSE else an
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* rgb colour is produced.
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*/
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void PSDRV_CreateColor( PSDRV_PDEVICE *physDev, PSCOLOR *pscolor,
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COLORREF wincolor )
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{
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int ctype = wincolor >> 24;
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float r, g, b;
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if(ctype != 0)
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FIXME(psdrv, "Colour is %08lx\n", wincolor);
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r = (wincolor & 0xff) / 256.0;
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g = ((wincolor >> 8) & 0xff) / 256.0;
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b = ((wincolor >> 16) & 0xff) / 256.0;
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if(physDev->pi->ppd->ColorDevice) {
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pscolor->type = PSCOLOR_RGB;
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pscolor->value.rgb.r = r;
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pscolor->value.rgb.g = g;
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pscolor->value.rgb.b = b;
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} else {
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pscolor->type = PSCOLOR_GRAY;
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/* FIXME configurable */
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pscolor->value.gray.i = r * 0.3 + g * 0.59 + b * 0.11;
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}
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return;
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}
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/***********************************************************************
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* PSDRV_SetBkColor
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*/
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COLORREF PSDRV_SetBkColor( DC *dc, COLORREF color )
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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COLORREF oldColor;
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oldColor = dc->w.backgroundColor;
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dc->w.backgroundColor = color;
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PSDRV_CreateColor(physDev, &physDev->bkColor, color);
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return oldColor;
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}
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/***********************************************************************
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* PSDRV_SetTextColor
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*/
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COLORREF PSDRV_SetTextColor( DC *dc, COLORREF color )
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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COLORREF oldColor;
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oldColor = dc->w.textColor;
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dc->w.textColor = color;
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PSDRV_CreateColor(physDev, &physDev->font.color, color);
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physDev->font.set = FALSE;
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return oldColor;
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}
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