void ME_MakeFirstParagraph(ME_TextEditor *editor)
{
ME_Context c;
CHARFORMAT2W cf;
LOGFONTW lf;
HFONT hf;
ME_TextBuffer *text = editor->pBuffer;
ME_DisplayItem *para = make_para(editor);
ME_DisplayItem *run;
ME_Style *style;
int eol_len;
WCHAR cr_lf[] = {'\r','\n',0};
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
hf = GetStockObject(SYSTEM_FONT);
assert(hf);
GetObjectW(hf, sizeof(LOGFONTW), &lf);
ZeroMemory(&cf, sizeof(cf));
cf.cbSize = sizeof(cf);
cf.dwMask = CFM_BACKCOLOR|CFM_COLOR|CFM_FACE|CFM_SIZE|CFM_CHARSET;
cf.dwMask |= CFM_ALLCAPS|CFM_BOLD|CFM_DISABLED|CFM_EMBOSS|CFM_HIDDEN;
cf.dwMask |= CFM_IMPRINT|CFM_ITALIC|CFM_LINK|CFM_OUTLINE|CFM_PROTECTED;
cf.dwMask |= CFM_REVISED|CFM_SHADOW|CFM_SMALLCAPS|CFM_STRIKEOUT;
cf.dwMask |= CFM_SUBSCRIPT|CFM_UNDERLINETYPE|CFM_WEIGHT;
cf.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
lstrcpyW(cf.szFaceName, lf.lfFaceName);
/* Convert system font height from logical units to twips for cf.yHeight */
cf.yHeight = (lf.lfHeight * 72 * 1440) / (c.dpi.cy * c.dpi.cy);
if (lf.lfWeight > FW_NORMAL) cf.dwEffects |= CFE_BOLD;
cf.wWeight = lf.lfWeight;
if (lf.lfItalic) cf.dwEffects |= CFE_ITALIC;
cf.bUnderlineType = (lf.lfUnderline) ? CFU_CF1UNDERLINE : CFU_UNDERLINENONE;
if (lf.lfStrikeOut) cf.dwEffects |= CFE_STRIKEOUT;
cf.bPitchAndFamily = lf.lfPitchAndFamily;
cf.bCharSet = lf.lfCharSet;
style = ME_MakeStyle(&cf);
text->pDefaultStyle = style;
eol_len = editor->bEmulateVersion10 ? 2 : 1;
para->member.para.text = ME_MakeStringN( cr_lf, eol_len );
run = ME_MakeRun(style, MERF_ENDPARA);
run->member.run.nCharOfs = 0;
run->member.run.len = eol_len;
run->member.run.para = ¶->member.para;
ME_InsertBefore(text->pLast, para);
ME_InsertBefore(text->pLast, run);
para->member.para.prev_para = text->pFirst;
para->member.para.next_para = text->pLast;
text->pFirst->member.para.next_para = para;
text->pLast->member.para.prev_para = para;
text->pLast->member.para.nCharOfs = editor->bEmulateVersion10 ? 2 : 1;
ME_DestroyContext(&c);
}
/******************************************************************************
* ME_SplitRunSimple
*
* Does the most basic job of splitting a run into two - it does not
* update the positions and extents.
*/
ME_DisplayItem *ME_SplitRunSimple(ME_TextEditor *editor, ME_Cursor *cursor)
{
ME_DisplayItem *run = cursor->pRun;
ME_DisplayItem *new_run;
int i;
int nOffset = cursor->nOffset;
assert(!(run->member.run.nFlags & MERF_NONTEXT));
new_run = ME_MakeRun(run->member.run.style,
run->member.run.nFlags & MERF_SPLITMASK);
new_run->member.run.nCharOfs = run->member.run.nCharOfs + nOffset;
new_run->member.run.len = run->member.run.len - nOffset;
new_run->member.run.para = run->member.run.para;
run->member.run.len = nOffset;
cursor->pRun = new_run;
cursor->nOffset = 0;
ME_InsertBefore(run->next, new_run);
ME_UpdateRunFlags(editor, &run->member.run);
ME_UpdateRunFlags(editor, &new_run->member.run);
for (i = 0; i < editor->nCursors; i++) {
if (editor->pCursors[i].pRun == run &&
editor->pCursors[i].nOffset >= nOffset) {
editor->pCursors[i].pRun = new_run;
editor->pCursors[i].nOffset -= nOffset;
}
}
cursor->pPara->member.para.nFlags |= MEPF_REWRAP;
return run;
}
/******************************************************************************
* ME_InsertRunAtCursor
*
* Inserts a new run with given style, flags and content at a given position,
* which is passed as a cursor structure (which consists of a run and
* a run-relative character offset).
*/
ME_DisplayItem *
ME_InsertRunAtCursor(ME_TextEditor *editor, ME_Cursor *cursor, ME_Style *style,
const WCHAR *str, int len, int flags)
{
ME_DisplayItem *pDI, *insert_before = cursor->pRun, *prev;
if (cursor->nOffset)
{
if (cursor->nOffset == cursor->pRun->member.run.len)
{
insert_before = ME_FindItemFwd( cursor->pRun, diRun );
if (!insert_before) insert_before = cursor->pRun; /* Always insert before the final eop run */
}
else
{
ME_SplitRunSimple( editor, cursor );
insert_before = cursor->pRun;
}
}
add_undo_delete_run( editor, insert_before->member.run.para->nCharOfs +
insert_before->member.run.nCharOfs, len );
pDI = ME_MakeRun(style, flags);
pDI->member.run.nCharOfs = insert_before->member.run.nCharOfs;
pDI->member.run.len = len;
pDI->member.run.para = insert_before->member.run.para;
ME_InsertString( pDI->member.run.para->text, pDI->member.run.nCharOfs, str, len );
ME_InsertBefore( insert_before, pDI );
TRACE("Shift length:%d\n", len);
ME_PropagateCharOffset( insert_before, len );
insert_before->member.run.para->nFlags |= MEPF_REWRAP;
/* Move any cursors that were at the end of the previous run to the end of the inserted run */
prev = ME_FindItemBack( pDI, diRun );
if (prev)
{
int i;
for (i = 0; i < editor->nCursors; i++)
{
if (editor->pCursors[i].pRun == prev &&
editor->pCursors[i].nOffset == prev->member.run.len)
{
editor->pCursors[i].pRun = pDI;
editor->pCursors[i].nOffset = len;
}
}
}
return pDI;
}
static void ME_InsertRowStart(ME_WrapContext *wc, const ME_DisplayItem *pEnd)
{
ME_DisplayItem *p, *row, *para;
int ascent = 0, descent = 0, width=0, shift = 0, align = 0;
/* wrap text */
para = ME_GetParagraph(wc->pRowStart);
for (p = wc->pRowStart; p!=pEnd; p = p->next)
{
/* 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 (!(p->member.run.nFlags & (MERF_ENDPARA|MERF_SKIPPED)))
width += p->member.run.nWidth;
}
}
row = ME_MakeRow(ascent+descent, ascent, width);
row->member.row.nYPos = wc->pt.y;
row->member.row.nLMargin = (!wc->nRow ? wc->nFirstMargin : wc->nLeftMargin);
row->member.row.nRMargin = wc->nRightMargin;
assert(para->member.para.pFmt->dwMask & PFM_ALIGNMENT);
align = para->member.para.pFmt->wAlignment;
if (align == PFA_CENTER)
shift = (wc->nAvailWidth-width)/2;
if (align == PFA_RIGHT)
shift = wc->nAvailWidth-width;
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 += ascent+descent;
ME_BeginRow(wc);
}
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);
}
/* split paragraph at the beginning of the run */
ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
ME_Style *style, const WCHAR *eol_str, int eol_len,
int paraFlags)
{
ME_DisplayItem *next_para = NULL;
ME_DisplayItem *run_para = NULL;
ME_DisplayItem *new_para = make_para(editor);
ME_DisplayItem *end_run;
int ofs, i;
ME_DisplayItem *pp;
int run_flags = MERF_ENDPARA;
if (!editor->bEmulateVersion10) { /* v4.1 */
/* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
assert(!(paraFlags & (paraFlags-1)));
if (paraFlags == MEPF_CELL)
run_flags |= MERF_ENDCELL;
else if (paraFlags == MEPF_ROWSTART)
run_flags |= MERF_TABLESTART|MERF_HIDDEN;
} else { /* v1.0 - v3.0 */
assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
}
assert(run->type == diRun);
run_para = ME_GetParagraph(run);
assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
new_para->member.para.text = ME_VSplitString( run_para->member.para.text, run->member.run.nCharOfs );
end_run = ME_MakeRun(style, run_flags);
ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
end_run->member.run.len = eol_len;
end_run->member.run.para = run->member.run.para;
ME_AppendString( run_para->member.para.text, eol_str, eol_len );
next_para = run_para->member.para.next_para;
assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
add_undo_join_paras( editor, run_para->member.para.nCharOfs + ofs );
/* Update selection cursors to point to the correct paragraph. */
for (i = 0; i < editor->nCursors; i++) {
if (editor->pCursors[i].pPara == run_para &&
run->member.run.nCharOfs <= editor->pCursors[i].pRun->member.run.nCharOfs)
{
editor->pCursors[i].pPara = new_para;
}
}
/* the new paragraph will have a different starting offset, so let's update its runs */
pp = run;
while(pp->type == diRun) {
pp->member.run.nCharOfs -= ofs;
pp->member.run.para = &new_para->member.para;
pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
}
new_para->member.para.nCharOfs = run_para->member.para.nCharOfs + ofs;
new_para->member.para.nCharOfs += eol_len;
new_para->member.para.nFlags = MEPF_REWRAP;
/* FIXME initialize format style and call ME_SetParaFormat blah blah */
*new_para->member.para.pFmt = *run_para->member.para.pFmt;
new_para->member.para.border = run_para->member.para.border;
/* insert paragraph into paragraph double linked list */
new_para->member.para.prev_para = run_para;
new_para->member.para.next_para = next_para;
run_para->member.para.next_para = new_para;
next_para->member.para.prev_para = new_para;
/* insert end run of the old paragraph, and new paragraph, into DI double linked list */
ME_InsertBefore(run, new_para);
ME_InsertBefore(new_para, end_run);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
{
ME_DisplayItem *cell = ME_MakeDI(diCell);
ME_InsertBefore(new_para, cell);
new_para->member.para.pCell = cell;
cell->member.cell.next_cell = NULL;
if (paraFlags & MEPF_ROWSTART)
{
run_para->member.para.nFlags |= MEPF_ROWSTART;
cell->member.cell.prev_cell = NULL;
cell->member.cell.parent_cell = run_para->member.para.pCell;
if (run_para->member.para.pCell)
cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
else
cell->member.cell.nNestingLevel = 1;
} else {
cell->member.cell.prev_cell = run_para->member.para.pCell;
assert(cell->member.cell.prev_cell);
cell->member.cell.prev_cell->member.cell.next_cell = cell;
assert(run_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
}
} else if (paraFlags & MEPF_ROWEND) {
run_para->member.para.nFlags |= MEPF_ROWEND;
run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
new_para->member.para.pCell = run_para->member.para.pCell;
assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
&& new_para->member.para.next_para->member.para.pCell
&& !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
{
/* Row starts just after the row that was ended. */
new_para->member.para.nFlags |= MEPF_ROWSTART;
}
} else {
new_para->member.para.pCell = run_para->member.para.pCell;
}
ME_UpdateTableFlags(run_para);
ME_UpdateTableFlags(new_para);
}
/* force rewrap of the */
run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
/* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
ME_PropagateCharOffset(next_para, eol_len);
editor->nParagraphs++;
return new_para;
}
/* split paragraph at the beginning of the run */
ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
ME_Style *style, int numCR, int numLF,
int paraFlags)
{
ME_DisplayItem *next_para = NULL;
ME_DisplayItem *run_para = NULL;
ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
ME_DisplayItem *end_run;
ME_UndoItem *undo = NULL;
int ofs;
ME_DisplayItem *pp;
int end_len = numCR + numLF;
int run_flags = MERF_ENDPARA;
if (!editor->bEmulateVersion10) { /* v4.1 */
/* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
assert(!(paraFlags & (paraFlags-1)));
if (paraFlags == MEPF_CELL)
run_flags |= MERF_ENDCELL;
else if (paraFlags == MEPF_ROWSTART)
run_flags |= MERF_TABLESTART|MERF_HIDDEN;
} else { /* v1.0 - v3.0 */
assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
}
end_run = ME_MakeRun(style,ME_MakeString(wszParagraphSign), run_flags);
assert(run->type == diRun);
end_run->member.run.nCR = numCR;
end_run->member.run.nLF = numLF;
run_para = ME_GetParagraph(run);
assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
next_para = run_para->member.para.next_para;
assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
if (undo)
undo->nStart = run_para->member.para.nCharOfs + ofs;
/* the new paragraph will have a different starting offset, so let's update its runs */
pp = run;
while(pp->type == diRun) {
pp->member.run.nCharOfs -= ofs;
pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
}
new_para->member.para.nCharOfs = ME_GetParagraph(run)->member.para.nCharOfs+ofs;
new_para->member.para.nCharOfs += end_len;
new_para->member.para.nFlags = MEPF_REWRAP;
/* FIXME initialize format style and call ME_SetParaFormat blah blah */
*new_para->member.para.pFmt = *run_para->member.para.pFmt;
new_para->member.para.border = run_para->member.para.border;
/* insert paragraph into paragraph double linked list */
new_para->member.para.prev_para = run_para;
new_para->member.para.next_para = next_para;
run_para->member.para.next_para = new_para;
next_para->member.para.prev_para = new_para;
/* insert end run of the old paragraph, and new paragraph, into DI double linked list */
ME_InsertBefore(run, new_para);
ME_InsertBefore(new_para, end_run);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
{
ME_DisplayItem *cell = ME_MakeDI(diCell);
ME_InsertBefore(new_para, cell);
new_para->member.para.pCell = cell;
cell->member.cell.next_cell = NULL;
if (paraFlags & MEPF_ROWSTART)
{
run_para->member.para.nFlags |= MEPF_ROWSTART;
cell->member.cell.prev_cell = NULL;
cell->member.cell.parent_cell = run_para->member.para.pCell;
if (run_para->member.para.pCell)
cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
else
cell->member.cell.nNestingLevel = 1;
} else {
cell->member.cell.prev_cell = run_para->member.para.pCell;
assert(cell->member.cell.prev_cell);
cell->member.cell.prev_cell->member.cell.next_cell = cell;
assert(run_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
}
} else if (paraFlags & MEPF_ROWEND) {
run_para->member.para.nFlags |= MEPF_ROWEND;
run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
new_para->member.para.pCell = run_para->member.para.pCell;
assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
&& new_para->member.para.next_para->member.para.pCell
&& !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
{
/* Row starts just after the row that was ended. */
new_para->member.para.nFlags |= MEPF_ROWSTART;
}
} else {
new_para->member.para.pCell = run_para->member.para.pCell;
}
ME_UpdateTableFlags(run_para);
ME_UpdateTableFlags(new_para);
}
/* force rewrap of the */
run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
/* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
ME_PropagateCharOffset(next_para, end_len);
editor->nParagraphs++;
return new_para;
}
