256 lines
7.3 KiB
C
256 lines
7.3 KiB
C
/*
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* PostScript driver text 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 <string.h>
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#include "psdrv.h"
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#include "debugtools.h"
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#include "winspool.h"
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DEFAULT_DEBUG_CHANNEL(psdrv);
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static BOOL PSDRV_Text(DC *dc, INT x, INT y, LPCWSTR str, UINT count,
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BOOL bDrawBackground, const INT *lpDx);
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/***********************************************************************
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* PSDRV_ExtTextOut
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*/
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BOOL PSDRV_ExtTextOut( DC *dc, INT x, INT y, UINT flags,
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const RECT *lprect, LPCWSTR str, UINT count,
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const INT *lpDx )
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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BOOL bResult = TRUE;
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BOOL bClipped = FALSE;
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BOOL bOpaque = FALSE;
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RECT rect;
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TRACE("(x=%d, y=%d, flags=0x%08x, str=%s, count=%d, lpDx=%p)\n", x, y,
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flags, debugstr_wn(str, count), count, lpDx);
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/* write font if not already written */
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PSDRV_SetFont(dc);
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/* set clipping and/or draw background */
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if ((flags & (ETO_CLIPPED | ETO_OPAQUE)) && (lprect != NULL))
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{
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rect.left = INTERNAL_XWPTODP(dc, lprect->left, lprect->top);
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rect.right = INTERNAL_XWPTODP(dc, lprect->right, lprect->bottom);
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rect.top = INTERNAL_YWPTODP(dc, lprect->left, lprect->top);
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rect.bottom = INTERNAL_YWPTODP(dc, lprect->right, lprect->bottom);
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PSDRV_WriteGSave(dc);
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PSDRV_WriteRectangle(dc, rect.left, rect.top, rect.right - rect.left,
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rect.bottom - rect.top);
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if (flags & ETO_OPAQUE)
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{
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bOpaque = TRUE;
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PSDRV_WriteGSave(dc);
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PSDRV_WriteSetColor(dc, &physDev->bkColor);
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PSDRV_WriteFill(dc);
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PSDRV_WriteGRestore(dc);
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}
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if (flags & ETO_CLIPPED)
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{
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bClipped = TRUE;
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PSDRV_WriteClip(dc);
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}
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bResult = PSDRV_Text(dc, x, y, str, count, !(bClipped && bOpaque), lpDx);
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PSDRV_WriteGRestore(dc);
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}
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else
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{
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bResult = PSDRV_Text(dc, x, y, str, count, TRUE, lpDx);
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}
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return bResult;
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}
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/***********************************************************************
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* PSDRV_Text
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*/
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static BOOL PSDRV_Text(DC *dc, INT x, INT y, LPCWSTR str, UINT count,
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BOOL bDrawBackground, const INT *lpDx)
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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LPWSTR strbuf;
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SIZE sz;
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if (!count)
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return TRUE;
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strbuf = HeapAlloc( PSDRV_Heap, 0, (count + 1) * sizeof(WCHAR));
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if(!strbuf) {
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WARN("HeapAlloc failed\n");
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return FALSE;
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}
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if(dc->textAlign & TA_UPDATECP) {
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x = dc->CursPosX;
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y = dc->CursPosY;
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}
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x = INTERNAL_XWPTODP(dc, x, y);
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y = INTERNAL_YWPTODP(dc, x, y);
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GetTextExtentPoint32W(dc->hSelf, str, count, &sz);
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if(lpDx) {
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SIZE tmpsz;
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INT i;
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/* Get the width of the last char and add on all the offsets */
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GetTextExtentPoint32W(dc->hSelf, str + count - 1, 1, &tmpsz);
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for(i = 0; i < count-1; i++)
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tmpsz.cx += lpDx[i];
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sz.cx = tmpsz.cx; /* sz.cy remains untouched */
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}
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sz.cx = INTERNAL_XWSTODS(dc, sz.cx);
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sz.cy = INTERNAL_YWSTODS(dc, sz.cy);
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TRACE("textAlign = %x\n", dc->textAlign);
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switch(dc->textAlign & (TA_LEFT | TA_CENTER | TA_RIGHT) ) {
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case TA_LEFT:
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if(dc->textAlign & TA_UPDATECP) {
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dc->CursPosX = INTERNAL_XDPTOWP(dc, x + sz.cx, y);
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}
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break;
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case TA_CENTER:
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x -= sz.cx/2;
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break;
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case TA_RIGHT:
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x -= sz.cx;
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if(dc->textAlign & TA_UPDATECP) {
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dc->CursPosX = INTERNAL_XDPTOWP(dc, x, y);
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}
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break;
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}
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switch(dc->textAlign & (TA_TOP | TA_BASELINE | TA_BOTTOM) ) {
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case TA_TOP:
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y += physDev->font.tm.tmAscent;
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break;
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case TA_BASELINE:
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break;
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case TA_BOTTOM:
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y -= physDev->font.tm.tmDescent;
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break;
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}
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memcpy(strbuf, str, count * sizeof(WCHAR));
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*(strbuf + count) = '\0';
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if ((dc->backgroundMode != TRANSPARENT) && (bDrawBackground != FALSE))
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{
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PSDRV_WriteGSave(dc);
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PSDRV_WriteNewPath(dc);
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PSDRV_WriteRectangle(dc, x, y - physDev->font.tm.tmAscent, sz.cx,
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physDev->font.tm.tmAscent +
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physDev->font.tm.tmDescent);
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PSDRV_WriteSetColor(dc, &physDev->bkColor);
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PSDRV_WriteFill(dc);
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PSDRV_WriteGRestore(dc);
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}
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PSDRV_WriteMoveTo(dc, x, y);
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if(!lpDx)
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PSDRV_WriteGlyphShow(dc, strbuf, lstrlenW(strbuf));
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else {
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INT i;
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float dx = 0.0, dy = 0.0;
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float cos_theta = cos(physDev->font.escapement * M_PI / 1800.0);
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float sin_theta = sin(physDev->font.escapement * M_PI / 1800.0);
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for(i = 0; i < count-1; i++) {
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TRACE("lpDx[%d] = %d\n", i, lpDx[i]);
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PSDRV_WriteGlyphShow(dc, &strbuf[i], 1);
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dx += lpDx[i] * cos_theta;
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dy -= lpDx[i] * sin_theta;
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PSDRV_WriteMoveTo(dc, x + INTERNAL_XWSTODS(dc, dx),
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y + INTERNAL_YWSTODS(dc, dy));
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}
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PSDRV_WriteGlyphShow(dc, &strbuf[i], 1);
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}
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/*
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* Underline and strikeout attributes.
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*/
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if ((physDev->font.tm.tmUnderlined) || (physDev->font.tm.tmStruckOut)) {
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/* Get the thickness and the position for the underline attribute */
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/* We'll use the same thickness for the strikeout attribute */
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float thick = physDev->font.afm->UnderlineThickness * physDev->font.scale;
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float pos = -physDev->font.afm->UnderlinePosition * physDev->font.scale;
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SIZE size;
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INT escapement = physDev->font.escapement;
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TRACE("Position = %f Thickness %f Escapement %d\n",
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pos, thick, escapement);
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/* Get the width of the text */
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PSDRV_GetTextExtentPoint(dc, strbuf, lstrlenW(strbuf), &size);
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size.cx = INTERNAL_XWSTODS(dc, size.cx);
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/* Do the underline */
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if (physDev->font.tm.tmUnderlined) {
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PSDRV_WriteNewPath(dc); /* will be closed by WriteRectangle */
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if (escapement != 0) /* rotated text */
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{
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PSDRV_WriteGSave(dc); /* save the graphics state */
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PSDRV_WriteMoveTo(dc, x, y); /* move to the start */
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/* temporarily rotate the coord system */
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PSDRV_WriteRotate(dc, -escapement/10);
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/* draw the underline relative to the starting point */
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PSDRV_WriteRRectangle(dc, 0, (INT)pos, size.cx, (INT)thick);
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}
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else
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PSDRV_WriteRectangle(dc, x, y + (INT)pos, size.cx, (INT)thick);
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PSDRV_WriteFill(dc);
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if (escapement != 0) /* rotated text */
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PSDRV_WriteGRestore(dc); /* restore the graphics state */
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}
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/* Do the strikeout */
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if (physDev->font.tm.tmStruckOut) {
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pos = -physDev->font.tm.tmAscent / 2;
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PSDRV_WriteNewPath(dc); /* will be closed by WriteRectangle */
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if (escapement != 0) /* rotated text */
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{
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PSDRV_WriteGSave(dc); /* save the graphics state */
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PSDRV_WriteMoveTo(dc, x, y); /* move to the start */
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/* temporarily rotate the coord system */
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PSDRV_WriteRotate(dc, -escapement/10);
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/* draw the underline relative to the starting point */
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PSDRV_WriteRRectangle(dc, 0, (INT)pos, size.cx, (INT)thick);
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}
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else
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PSDRV_WriteRectangle(dc, x, y + (INT)pos, size.cx, (INT)thick);
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PSDRV_WriteFill(dc);
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if (escapement != 0) /* rotated text */
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PSDRV_WriteGRestore(dc); /* restore the graphics state */
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}
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}
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HeapFree(PSDRV_Heap, 0, strbuf);
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return TRUE;
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}
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