void ME_InvalidateParagraphRange(ME_TextEditor *editor,
ME_DisplayItem *start_para,
ME_DisplayItem *last_para)
{
ME_Context c;
RECT rc;
int ofs;
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
rc = c.rcView;
ofs = editor->vert_si.nPos;
if (start_para) {
start_para = ME_GetOuterParagraph(start_para);
last_para = ME_GetOuterParagraph(last_para);
rc.top = c.rcView.top + start_para->member.para.pt.y - ofs;
} else {
rc.top = c.rcView.top + editor->nTotalLength - ofs;
}
if (editor->nTotalLength < editor->nLastTotalLength)
rc.bottom = c.rcView.top + editor->nLastTotalLength - ofs;
else
rc.bottom = c.rcView.top + last_para->member.para.pt.y + last_para->member.para.nHeight - ofs;
ITextHost_TxInvalidateRect(editor->texthost, &rc, TRUE);
ME_DestroyContext(&c);
}
void ME_InvalidateMarkedParagraphs(ME_TextEditor *editor,
ME_DisplayItem *start_para,
ME_DisplayItem *end_para)
{
ME_Context c;
RECT rc;
int ofs;
ME_DisplayItem *item;
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
rc = c.rcView;
ofs = editor->vert_si.nPos;
item = start_para;
while(item && item != end_para) {
if (item->member.para.nFlags & MEPF_REPAINT) {
rc.top = c.rcView.top + item->member.para.pt.y - ofs;
rc.bottom = max(rc.top + item->member.para.nHeight, c.rcView.bottom);
ITextHost_TxInvalidateRect(editor->texthost, &rc, TRUE);
item->member.para.nFlags &= ~MEPF_REPAINT;
}
item = item->member.para.next_para;
}
if (editor->nTotalLength < editor->nLastTotalLength)
{
rc.top = c.rcView.top + editor->nTotalLength - ofs;
rc.bottom = c.rcView.top + editor->nLastTotalLength - ofs;
ITextHost_TxInvalidateRect(editor->texthost, &rc, TRUE);
}
ME_DestroyContext(&c);
}
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);
}
static 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;
SIZE sz = {0, 0};
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);
sz = ME_GetRunSize(&c, ¶->member.para,
&run->member.run, run->member.run.len,
row->member.row.nLMargin);
}
}
if (pCursor->nOffset) {
sz = ME_GetRunSize(&c, ¶->member.para, &run->member.run,
pCursor->nOffset, row->member.row.nLMargin);
}
*height = pSizeRun->member.run.nAscent + pSizeRun->member.run.nDescent;
*x = c.rcView.left + run->member.run.pt.x + sz.cx - 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;
}
int ME_CharFromPoint(ME_TextEditor *editor, int cx, ME_Run *run, BOOL closest, BOOL visual_order)
{
ME_Context c;
int ret;
ME_InitContext( &c, editor, ITextHost_TxGetDC( editor->texthost ) );
ret = ME_CharFromPointContext( &c, cx, run, closest, visual_order );
ME_DestroyContext(&c);
return ret;
}
/******************************************************************************
* 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;
}
BOOL ME_WrapMarkedParagraphs(ME_TextEditor *editor)
{
ME_DisplayItem *item;
ME_Context c;
int totalWidth = 0;
ME_DisplayItem *repaint_start = NULL, *repaint_end = NULL;
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
c.pt.x = 0;
item = editor->pBuffer->pFirst->next;
while(item != editor->pBuffer->pLast) {
BOOL bRedraw = FALSE;
assert(item->type == diParagraph);
if ((item->member.para.nFlags & MEPF_REWRAP)
|| (item->member.para.pt.y != c.pt.y))
bRedraw = TRUE;
item->member.para.pt = c.pt;
ME_WrapTextParagraph(&c, item);
if (bRedraw)
ME_MarkRepaintEnd(item, &repaint_start, &repaint_end);
if (item->member.para.nFlags & MEPF_ROWSTART)
{
ME_DisplayItem *cell = ME_FindItemFwd(item, diCell);
ME_DisplayItem *endRowPara;
int borderWidth = 0;
cell->member.cell.pt = c.pt;
/* Offset the text by the largest top border width. */
while (cell->member.cell.next_cell) {
borderWidth = max(borderWidth, cell->member.cell.border.top.width);
cell = cell->member.cell.next_cell;
}
endRowPara = ME_FindItemFwd(cell, diParagraph);
assert(endRowPara->member.para.nFlags & MEPF_ROWEND);
if (borderWidth > 0)
{
borderWidth = max(ME_twips2pointsY(&c, borderWidth), 1);
while (cell) {
cell->member.cell.yTextOffset = borderWidth;
cell = cell->member.cell.prev_cell;
}
c.pt.y += borderWidth;
}
if (endRowPara->member.para.pFmt->dxStartIndent > 0)
{
int dxStartIndent = endRowPara->member.para.pFmt->dxStartIndent;
cell = ME_FindItemFwd(item, diCell);
cell->member.cell.pt.x += ME_twips2pointsX(&c, dxStartIndent);
c.pt.x = cell->member.cell.pt.x;
}
}
else if (item->member.para.nFlags & MEPF_ROWEND)
{
/* Set all the cells to the height of the largest cell */
ME_DisplayItem *startRowPara;
int prevHeight, nHeight, bottomBorder = 0;
ME_DisplayItem *cell = ME_FindItemBack(item, diCell);
item->member.para.nWidth = cell->member.cell.pt.x + cell->member.cell.nWidth;
if (!(item->member.para.next_para->member.para.nFlags & MEPF_ROWSTART))
{
/* Last row, the bottom border is added to the height. */
cell = cell->member.cell.prev_cell;
while (cell)
{
bottomBorder = max(bottomBorder, cell->member.cell.border.bottom.width);
cell = cell->member.cell.prev_cell;
}
bottomBorder = ME_twips2pointsY(&c, bottomBorder);
cell = ME_FindItemBack(item, diCell);
}
prevHeight = cell->member.cell.nHeight;
nHeight = cell->member.cell.prev_cell->member.cell.nHeight + bottomBorder;
cell->member.cell.nHeight = nHeight;
item->member.para.nHeight = nHeight;
cell = cell->member.cell.prev_cell;
cell->member.cell.nHeight = nHeight;
while (cell->member.cell.prev_cell)
{
cell = cell->member.cell.prev_cell;
cell->member.cell.nHeight = nHeight;
}
/* Also set the height of the start row paragraph */
startRowPara = ME_FindItemBack(cell, diParagraph);
startRowPara->member.para.nHeight = nHeight;
c.pt.x = startRowPara->member.para.pt.x;
c.pt.y = cell->member.cell.pt.y + nHeight;
if (prevHeight < nHeight)
{
/* The height of the cells has grown, so invalidate the bottom of
* the cells. */
ME_MarkRepaintEnd(item, &repaint_start, &repaint_end);
cell = ME_FindItemBack(item, diCell);
while (cell) {
ME_MarkRepaintEnd(ME_FindItemBack(cell, diParagraph), &repaint_start, &repaint_end);
cell = cell->member.cell.prev_cell;
}
}
}
else if (item->member.para.pCell &&
item->member.para.pCell != item->member.para.next_para->member.para.pCell)
{
/* The next paragraph is in the next cell in the table row. */
ME_Cell *cell = &item->member.para.pCell->member.cell;
cell->nHeight = c.pt.y + item->member.para.nHeight - cell->pt.y;
/* Propagate the largest height to the end so that it can be easily
* sent back to all the cells at the end of the row. */
if (cell->prev_cell)
cell->nHeight = max(cell->nHeight, cell->prev_cell->member.cell.nHeight);
c.pt.x = cell->pt.x + cell->nWidth;
c.pt.y = cell->pt.y;
cell->next_cell->member.cell.pt = c.pt;
if (!(item->member.para.next_para->member.para.nFlags & MEPF_ROWEND))
c.pt.y += cell->yTextOffset;
}
else
{
if (item->member.para.pCell) {
/* Next paragraph in the same cell. */
c.pt.x = item->member.para.pCell->member.cell.pt.x;
} else {
/* Normal paragraph */
c.pt.x = 0;
}
c.pt.y += item->member.para.nHeight;
}
totalWidth = max(totalWidth, item->member.para.nWidth);
item = item->member.para.next_para;
}
editor->sizeWindow.cx = c.rcView.right-c.rcView.left;
editor->sizeWindow.cy = c.rcView.bottom-c.rcView.top;
editor->nTotalLength = c.pt.y;
editor->nTotalWidth = totalWidth;
editor->pBuffer->pLast->member.para.pt.x = 0;
editor->pBuffer->pLast->member.para.pt.y = c.pt.y;
ME_DestroyContext(&c);
if (repaint_start || editor->nTotalLength < editor->nLastTotalLength)
ME_InvalidateParagraphRange(editor, repaint_start, repaint_end);
return !!repaint_start;
}