/******************************************************************************
* ME_PointFromChar
*
* Calls ME_PointFromCharContext after first creating a context.
*/
int ME_PointFromChar(ME_TextEditor *editor, ME_Run *pRun, int nOffset, BOOL visual_order)
{
ME_Context c;
int ret;
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
ret = ME_PointFromCharContext( &c, pRun, nOffset, visual_order );
ME_DestroyContext(&c);
return ret;
}
void ME_GetCursorCoordinates(ME_TextEditor *editor, ME_Cursor *pCursor,
int *x, int *y, int *height)
{
ME_DisplayItem *row;
ME_DisplayItem *run = pCursor->pRun;
ME_DisplayItem *para = pCursor->pPara;
ME_DisplayItem *pSizeRun = run;
ME_Context c;
int run_x;
assert(height && x && y);
assert(~para->member.para.nFlags & MEPF_REWRAP);
assert(run && run->type == diRun);
assert(para && para->type == diParagraph);
row = ME_FindItemBack(run, diStartRowOrParagraph);
assert(row && row->type == diStartRow);
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
if (!pCursor->nOffset)
{
ME_DisplayItem *prev = ME_FindItemBack(run, diRunOrParagraph);
assert(prev);
if (prev->type == diRun)
pSizeRun = prev;
}
if (editor->bCaretAtEnd && !pCursor->nOffset &&
run == ME_FindItemFwd(row, diRun))
{
ME_DisplayItem *tmp = ME_FindItemBack(row, diRunOrParagraph);
assert(tmp);
if (tmp->type == diRun)
{
row = ME_FindItemBack(tmp, diStartRow);
pSizeRun = run = tmp;
assert(run);
assert(run->type == diRun);
}
}
run_x = ME_PointFromCharContext( &c, &run->member.run, pCursor->nOffset, TRUE );
*height = pSizeRun->member.run.nAscent + pSizeRun->member.run.nDescent;
*x = c.rcView.left + run->member.run.pt.x + run_x - editor->horz_si.nPos;
*y = c.rcView.top + para->member.para.pt.y + row->member.row.nBaseline
+ run->member.run.pt.y - pSizeRun->member.run.nAscent
- editor->vert_si.nPos;
ME_DestroyContext(&c);
return;
}
static void ME_InsertRowStart(ME_WrapContext *wc, const ME_DisplayItem *pEnd)
{
ME_DisplayItem *p, *row;
ME_Paragraph *para = &wc->pPara->member.para;
BOOL bSkippingSpaces = TRUE;
int ascent = 0, descent = 0, width=0, shift = 0, align = 0;
/* wrap text */
for (p = pEnd->prev; p!=wc->pRowStart->prev; p = p->prev)
{
/* ENDPARA run shouldn't affect row height, except if it's the only run in the paragraph */
if (p->type==diRun && ((p==wc->pRowStart) || !(p->member.run.nFlags & MERF_ENDPARA))) { /* FIXME add more run types */
if (p->member.run.nAscent>ascent)
ascent = p->member.run.nAscent;
if (p->member.run.nDescent>descent)
descent = p->member.run.nDescent;
if (bSkippingSpaces)
{
/* Exclude space characters from run width.
* Other whitespace or delimiters are not treated this way. */
int len = p->member.run.len;
WCHAR *text = get_text( &p->member.run, len - 1 );
assert (len);
if (~p->member.run.nFlags & MERF_GRAPHICS)
while (len && *(text--) == ' ')
len--;
if (len)
{
if (len == p->member.run.len)
width += p->member.run.nWidth;
else
width += ME_PointFromCharContext( wc->context, &p->member.run, len, FALSE );
}
bSkippingSpaces = !len;
} else if (!(p->member.run.nFlags & MERF_ENDPARA))
width += p->member.run.nWidth;
}
}
para->nWidth = max(para->nWidth, width);
row = ME_MakeRow(ascent+descent, ascent, width);
if (wc->context->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
(para->pFmt->dwMask & PFM_TABLE) && (para->pFmt->wEffects & PFE_TABLE))
{
/* The text was shifted down in ME_BeginRow so move the wrap context
* back to where it should be. */
wc->pt.y--;
/* The height of the row is increased by the borders. */
row->member.row.nHeight += 2;
}
row->member.row.pt = wc->pt;
row->member.row.nLMargin = (!wc->nRow ? wc->nFirstMargin : wc->nLeftMargin);
row->member.row.nRMargin = wc->nRightMargin;
assert(para->pFmt->dwMask & PFM_ALIGNMENT);
align = para->pFmt->wAlignment;
if (align == PFA_CENTER)
shift = max((wc->nAvailWidth-width)/2, 0);
if (align == PFA_RIGHT)
shift = max(wc->nAvailWidth-width, 0);
if (para->nFlags & MEPF_COMPLEX) layout_row( wc->pRowStart, pEnd );
row->member.row.pt.x = row->member.row.nLMargin + shift;
for (p = wc->pRowStart; p!=pEnd; p = p->next)
{
if (p->type==diRun) { /* FIXME add more run types */
p->member.run.pt.x += row->member.row.nLMargin+shift;
}
}
ME_InsertBefore(wc->pRowStart, row);
wc->nRow++;
wc->pt.y += row->member.row.nHeight;
ME_BeginRow(wc);
}
