/******************************************************************************
* ME_GetRunSizeCommon
*
* Finds width, height, ascent and descent of a run, up to given character
* (nLen).
*/
SIZE ME_GetRunSizeCommon(ME_Context *c, const ME_Paragraph *para, ME_Run *run, int nLen,
int startx, int *pAscent, int *pDescent)
{
SIZE size;
WCHAR spaceW[] = {' ',0};
nLen = min( nLen, run->len );
if (run->nFlags & MERF_ENDPARA)
{
nLen = min( nLen, 1 );
ME_GetTextExtent(c, spaceW, nLen, run->style, &size);
}
else if (para->nFlags & MEPF_COMPLEX)
{
size.cx = run->nWidth;
}
else if (c->editor->cPasswordMask)
{
ME_String *szMasked = ME_MakeStringR(c->editor->cPasswordMask,nLen);
ME_GetTextExtent(c, szMasked->szData, nLen,run->style, &size);
ME_DestroyString(szMasked);
}
else
{
ME_GetTextExtent(c, get_text( run, 0 ), nLen, run->style, &size);
}
*pAscent = run->style->tm.tmAscent;
*pDescent = run->style->tm.tmDescent;
size.cy = *pAscent + *pDescent;
if (run->nFlags & MERF_TAB)
{
int pos = 0, i = 0, ppos, shift = 0;
const PARAFORMAT2 *pFmt = ¶->fmt;
if (c->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
/* The horizontal gap shifts the tab positions to leave the gap. */
shift = pFmt->dxOffset * 2;
do {
if (i < pFmt->cTabCount)
{
/* Only one side of the horizontal gap is needed at the end of
* the table row. */
if (i == pFmt->cTabCount -1)
shift = shift >> 1;
pos = shift + (pFmt->rgxTabs[i]&0x00FFFFFF);
i++;
}
else
{
pos += lDefaultTab - (pos % lDefaultTab);
}
ppos = ME_twips2pointsX(c, pos);
if (ppos > startx + run->pt.x) {
size.cx = ppos - startx - run->pt.x;
break;
}
} while(1);
/******************************************************************************
* ME_GetRunSizeCommon
*
* Finds width, height, ascent and descent of a run, up to given character
* (nLen).
*/
SIZE ME_GetRunSizeCommon(ME_Context *c, const ME_Paragraph *para, ME_Run *run, int nLen,
int startx, int *pAscent, int *pDescent)
{
SIZE size;
int nMaxLen = run->len;
if (nLen>nMaxLen)
nLen = nMaxLen;
/* FIXME the following call also ensures that TEXTMETRIC structure is filled
* this is wasteful for MERF_NONTEXT runs, but that shouldn't matter
* in practice
*/
if (c->editor->cPasswordMask)
{
ME_String *szMasked = ME_MakeStringR(c->editor->cPasswordMask,nLen);
ME_GetTextExtent(c, szMasked->szData, nLen,run->style, &size);
ME_DestroyString(szMasked);
}
else
{
ME_GetTextExtent(c, get_text( run, 0 ), nLen, run->style, &size);
}
*pAscent = run->style->tm.tmAscent;
*pDescent = run->style->tm.tmDescent;
size.cy = *pAscent + *pDescent;
if (run->nFlags & MERF_TAB)
{
int pos = 0, i = 0, ppos, shift = 0;
PARAFORMAT2 *pFmt = para->pFmt;
if (c->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
/* The horizontal gap shifts the tab positions to leave the gap. */
shift = pFmt->dxOffset * 2;
do {
if (i < pFmt->cTabCount)
{
/* Only one side of the horizontal gap is needed at the end of
* the table row. */
if (i == pFmt->cTabCount -1)
shift = shift >> 1;
pos = shift + (pFmt->rgxTabs[i]&0x00FFFFFF);
i++;
}
else
{
pos += lDefaultTab - (pos % lDefaultTab);
}
ppos = ME_twips2pointsX(c, pos);
if (ppos > startx + run->pt.x) {
size.cx = ppos - startx - run->pt.x;
break;
}
} while(1);
static void ME_BeginRow(ME_WrapContext *wc)
{
PARAFORMAT2 *pFmt;
ME_DisplayItem *para = wc->pPara;
pFmt = para->member.para.pFmt;
wc->pRowStart = NULL;
wc->bOverflown = FALSE;
wc->pLastSplittableRun = NULL;
wc->bWordWrap = wc->context->editor->bWordWrap;
if (para->member.para.nFlags & (MEPF_ROWSTART|MEPF_ROWEND)) {
wc->nAvailWidth = 0;
wc->bWordWrap = FALSE;
if (para->member.para.nFlags & MEPF_ROWEND)
{
ME_Cell *cell = &ME_FindItemBack(para, diCell)->member.cell;
cell->nWidth = 0;
}
} else if (para->member.para.pCell) {
ME_Cell *cell = ¶->member.para.pCell->member.cell;
int width;
width = cell->nRightBoundary;
if (cell->prev_cell)
width -= cell->prev_cell->member.cell.nRightBoundary;
if (!cell->prev_cell)
{
int rowIndent = ME_GetTableRowEnd(para)->member.para.pFmt->dxStartIndent;
width -= rowIndent;
}
cell->nWidth = max(ME_twips2pointsX(wc->context, width), 0);
wc->nAvailWidth = cell->nWidth
- (wc->nRow ? wc->nLeftMargin : wc->nFirstMargin) - wc->nRightMargin;
wc->bWordWrap = TRUE;
} else {
wc->nAvailWidth = wc->context->nAvailWidth
- (wc->nRow ? wc->nLeftMargin : wc->nFirstMargin) - wc->nRightMargin;
}
wc->pt.x = wc->context->pt.x;
if (wc->context->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
/* Shift the text down because of the border. */
wc->pt.y++;
}
void ME_InitContext(ME_Context *c, ME_TextEditor *editor, HDC hDC)
{
c->nSequence = editor->nSequence++;
c->hDC = hDC;
c->editor = editor;
c->pt.x = 0;
c->pt.y = 0;
c->hbrMargin = CreateSolidBrush(RGB(224,224,224));
c->rcView = editor->rcFormat;
if (hDC) {
c->dpi.cx = GetDeviceCaps(hDC, LOGPIXELSX);
c->dpi.cy = GetDeviceCaps(hDC, LOGPIXELSY);
} else {
c->dpi.cx = c->dpi.cy = 96;
}
if (editor->nAvailWidth)
c->nAvailWidth = ME_twips2pointsX(c, editor->nAvailWidth);
else
c->nAvailWidth = c->rcView.right - c->rcView.left;
}
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;
}
static void ME_WrapTextParagraph(ME_Context *c, ME_DisplayItem *tp) {
ME_DisplayItem *p;
ME_WrapContext wc;
int border = 0;
int linespace = 0;
PARAFORMAT2 *pFmt;
assert(tp->type == diParagraph);
if (!(tp->member.para.nFlags & MEPF_REWRAP)) {
return;
}
ME_PrepareParagraphForWrapping(c, tp);
/* For now treating all non-password text as complex for better testing */
if (!c->editor->cPasswordMask /* &&
ScriptIsComplex( tp->member.para.text->szData, tp->member.para.text->nLen, SIC_COMPLEX ) == S_OK */)
{
if (SUCCEEDED( itemize_para( c, tp ) ))
shape_para( c, tp );
}
pFmt = tp->member.para.pFmt;
wc.context = c;
wc.pPara = tp;
/* wc.para_style = tp->member.para.style; */
wc.style = NULL;
if (tp->member.para.nFlags & MEPF_ROWEND) {
wc.nFirstMargin = wc.nLeftMargin = wc.nRightMargin = 0;
} else {
int dxStartIndent = pFmt->dxStartIndent;
if (tp->member.para.pCell) {
dxStartIndent += ME_GetTableRowEnd(tp)->member.para.pFmt->dxOffset;
}
wc.nFirstMargin = ME_twips2pointsX(c, dxStartIndent);
wc.nLeftMargin = wc.nFirstMargin + ME_twips2pointsX(c, pFmt->dxOffset);
wc.nRightMargin = ME_twips2pointsX(c, pFmt->dxRightIndent);
}
if (c->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
{
wc.nFirstMargin += ME_twips2pointsX(c, pFmt->dxOffset * 2);
}
wc.nRow = 0;
wc.pt.y = 0;
if (pFmt->dwMask & PFM_SPACEBEFORE)
wc.pt.y += ME_twips2pointsY(c, pFmt->dySpaceBefore);
if (!(pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE) &&
pFmt->dwMask & PFM_BORDER)
{
border = ME_GetParaBorderWidth(c, tp->member.para.pFmt->wBorders);
if (pFmt->wBorders & 1) {
wc.nFirstMargin += border;
wc.nLeftMargin += border;
}
if (pFmt->wBorders & 2)
wc.nRightMargin -= border;
if (pFmt->wBorders & 4)
wc.pt.y += border;
}
linespace = ME_GetParaLineSpace(c, &tp->member.para);
ME_BeginRow(&wc);
for (p = tp->next; p!=tp->member.para.next_para; ) {
assert(p->type != diStartRow);
if (p->type == diRun) {
p = ME_WrapHandleRun(&wc, p);
}
else p = p->next;
if (wc.nRow && p == wc.pRowStart)
wc.pt.y += linespace;
}
ME_WrapEndParagraph(&wc, p);
if (!(pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE) &&
(pFmt->dwMask & PFM_BORDER) && (pFmt->wBorders & 8))
wc.pt.y += border;
if (tp->member.para.pFmt->dwMask & PFM_SPACEAFTER)
wc.pt.y += ME_twips2pointsY(c, pFmt->dySpaceAfter);
tp->member.para.nFlags &= ~MEPF_REWRAP;
tp->member.para.nHeight = wc.pt.y;
tp->member.para.nRows = wc.nRow;
}
static void ME_WrapTextParagraph(ME_Context *c, ME_DisplayItem *tp, DWORD beginofs) {
ME_DisplayItem *p;
ME_WrapContext wc;
int border = 0;
int linespace = 0;
assert(tp->type == diParagraph);
if (!(tp->member.para.nFlags & MEPF_REWRAP)) {
return;
}
ME_PrepareParagraphForWrapping(c, tp);
wc.context = c;
/* wc.para_style = tp->member.para.style; */
wc.style = NULL;
wc.nFirstMargin = ME_twips2pointsX(c, tp->member.para.pFmt->dxStartIndent) + beginofs;
wc.nLeftMargin = wc.nFirstMargin + ME_twips2pointsX(c, tp->member.para.pFmt->dxOffset);
wc.nRightMargin = ME_twips2pointsX(c, tp->member.para.pFmt->dxRightIndent);
wc.nRow = 0;
wc.pt.x = 0;
wc.pt.y = 0;
if (tp->member.para.pFmt->dwMask & PFM_SPACEBEFORE)
wc.pt.y += ME_twips2pointsY(c, tp->member.para.pFmt->dySpaceBefore);
if (tp->member.para.pFmt->dwMask & PFM_BORDER)
{
border = ME_GetParaBorderWidth(c->editor, tp->member.para.pFmt->wBorders);
if (tp->member.para.pFmt->wBorders & 1) {
wc.nFirstMargin += border;
wc.nLeftMargin += border;
}
if (tp->member.para.pFmt->wBorders & 2)
wc.nRightMargin -= border;
if (tp->member.para.pFmt->wBorders & 4)
wc.pt.y += border;
}
if (c->editor->bWordWrap)
wc.nAvailWidth = c->rcView.right - c->rcView.left - wc.nFirstMargin - wc.nRightMargin;
else
wc.nAvailWidth = ~0u >> 1;
wc.pRowStart = NULL;
linespace = ME_GetParaLineSpace(c, &tp->member.para);
ME_BeginRow(&wc);
for (p = tp->next; p!=tp->member.para.next_para; ) {
assert(p->type != diStartRow);
if (p->type == diRun) {
p = ME_WrapHandleRun(&wc, p);
}
else p = p->next;
if (wc.nRow && p == wc.pRowStart)
wc.pt.y += linespace;
}
ME_WrapEndParagraph(&wc, p);
if ((tp->member.para.pFmt->dwMask & PFM_BORDER) && (tp->member.para.pFmt->wBorders & 8))
wc.pt.y += border;
if (tp->member.para.pFmt->dwMask & PFM_SPACEAFTER)
wc.pt.y += ME_twips2pointsY(c, tp->member.para.pFmt->dySpaceAfter);
tp->member.para.nFlags &= ~MEPF_REWRAP;
tp->member.para.nHeight = wc.pt.y;
tp->member.para.nRows = wc.nRow;
}
