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1223 lines
39 KiB
C
1223 lines
39 KiB
C
/*
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* RichEdit - Paragraph wrapping. Don't try to understand it. You've been
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* warned !
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*
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* Copyright 2004 by Krzysztof Foltman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "editor.h"
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WINE_DEFAULT_DEBUG_CHANNEL(richedit);
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/*
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* Unsolved problems:
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*
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* - center and right align in WordPad omits all spaces at the start, we don't
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* - objects/images are not handled yet
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* - no tabs
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*/
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typedef struct tagME_WrapContext
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{
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ME_Style *style;
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ME_Context *context;
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int nLeftMargin, nRightMargin;
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int nFirstMargin; /* Offset to first line's text, always to the text itself even if a para number is present */
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int nParaNumOffset; /* Offset to the para number */
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int nAvailWidth; /* Width avail for text to wrap into. Does not include any para number text */
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int nRow;
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POINT pt;
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BOOL bOverflown, bWordWrap;
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ME_DisplayItem *pPara;
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ME_DisplayItem *pRowStart;
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ME_DisplayItem *pLastSplittableRun;
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} ME_WrapContext;
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static BOOL get_run_glyph_buffers( ME_Run *run )
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{
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heap_free( run->glyphs );
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run->glyphs = heap_alloc( run->max_glyphs * (sizeof(WORD) + sizeof(SCRIPT_VISATTR) + sizeof(int) + sizeof(GOFFSET)) );
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if (!run->glyphs) return FALSE;
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run->vis_attrs = (SCRIPT_VISATTR*)((char*)run->glyphs + run->max_glyphs * sizeof(WORD));
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run->advances = (int*)((char*)run->glyphs + run->max_glyphs * (sizeof(WORD) + sizeof(SCRIPT_VISATTR)));
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run->offsets = (GOFFSET*)((char*)run->glyphs + run->max_glyphs * (sizeof(WORD) + sizeof(SCRIPT_VISATTR) + sizeof(int)));
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return TRUE;
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}
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static HRESULT shape_run( ME_Context *c, ME_Run *run )
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{
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HRESULT hr;
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int i;
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if (!run->glyphs)
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{
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run->max_glyphs = 1.5 * run->len + 16; /* This is suggested in the uniscribe documentation */
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run->max_glyphs = (run->max_glyphs + 7) & ~7; /* Keep alignment simple */
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get_run_glyph_buffers( run );
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}
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if (run->max_clusters < run->len)
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{
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heap_free( run->clusters );
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run->max_clusters = run->len * 2;
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run->clusters = heap_alloc( run->max_clusters * sizeof(WORD) );
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}
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select_style( c, run->style );
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while (1)
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{
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hr = ScriptShape( c->hDC, &run->style->script_cache, get_text( run, 0 ), run->len, run->max_glyphs,
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&run->script_analysis, run->glyphs, run->clusters, run->vis_attrs, &run->num_glyphs );
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if (hr != E_OUTOFMEMORY) break;
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if (run->max_glyphs > 10 * run->len) break; /* something has clearly gone wrong */
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run->max_glyphs *= 2;
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get_run_glyph_buffers( run );
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}
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if (SUCCEEDED(hr))
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hr = ScriptPlace( c->hDC, &run->style->script_cache, run->glyphs, run->num_glyphs, run->vis_attrs,
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&run->script_analysis, run->advances, run->offsets, NULL );
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if (SUCCEEDED(hr))
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{
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for (i = 0, run->nWidth = 0; i < run->num_glyphs; i++)
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run->nWidth += run->advances[i];
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}
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return hr;
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}
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/******************************************************************************
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* calc_run_extent
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*
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* Updates the size of the run (fills width, ascent and descent). The height
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* is calculated based on whole row's ascent and descent anyway, so no need
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* to use it here.
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*/
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static void calc_run_extent(ME_Context *c, const ME_Paragraph *para, int startx, ME_Run *run)
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{
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if (run->nFlags & MERF_HIDDEN) run->nWidth = 0;
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else
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{
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SIZE size = ME_GetRunSizeCommon( c, para, run, run->len, startx, &run->nAscent, &run->nDescent );
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run->nWidth = size.cx;
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}
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}
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/******************************************************************************
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* split_run_extents
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*
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* Splits a run into two in a given place. It also updates the screen position
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* and size (extent) of the newly generated runs.
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*/
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static ME_DisplayItem *split_run_extents(ME_WrapContext *wc, ME_DisplayItem *item, int nVChar)
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{
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ME_TextEditor *editor = wc->context->editor;
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ME_Run *run, *run2;
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ME_Paragraph *para = &wc->pPara->member.para;
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ME_Cursor cursor = {wc->pPara, item, nVChar};
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assert(item->member.run.nCharOfs != -1);
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ME_CheckCharOffsets(editor);
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run = &item->member.run;
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TRACE("Before split: %s(%d, %d)\n", debugstr_run( run ),
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run->pt.x, run->pt.y);
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ME_SplitRunSimple(editor, &cursor);
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run2 = &cursor.pRun->member.run;
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run2->script_analysis = run->script_analysis;
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shape_run( wc->context, run );
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shape_run( wc->context, run2 );
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calc_run_extent(wc->context, para, wc->nRow ? wc->nLeftMargin : wc->nFirstMargin, run);
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run2->pt.x = run->pt.x+run->nWidth;
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run2->pt.y = run->pt.y;
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ME_CheckCharOffsets(editor);
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TRACE("After split: %s(%d, %d), %s(%d, %d)\n",
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debugstr_run( run ), run->pt.x, run->pt.y,
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debugstr_run( run2 ), run2->pt.x, run2->pt.y);
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return cursor.pRun;
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}
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/******************************************************************************
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* find_split_point
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*
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* Returns a character position to split inside the run given a run-relative
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* pixel horizontal position. This version rounds left (ie. if the second
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* character is at pixel position 8, then for cx=0..7 it returns 0).
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*/
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static int find_split_point( ME_Context *c, int cx, ME_Run *run )
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{
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if (!run->len || cx <= 0) return 0;
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return ME_CharFromPointContext( c, cx, run, FALSE, FALSE );
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}
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static ME_DisplayItem *ME_MakeRow(int height, int baseline, int width)
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{
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ME_DisplayItem *item = ME_MakeDI(diStartRow);
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item->member.row.nHeight = height;
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item->member.row.nBaseline = baseline;
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item->member.row.nWidth = width;
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return item;
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}
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static void ME_BeginRow(ME_WrapContext *wc)
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{
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PARAFORMAT2 *pFmt;
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ME_DisplayItem *para = wc->pPara;
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pFmt = ¶->member.para.fmt;
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wc->pRowStart = NULL;
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wc->bOverflown = FALSE;
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wc->pLastSplittableRun = NULL;
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wc->bWordWrap = wc->context->editor->bWordWrap;
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if (para->member.para.nFlags & (MEPF_ROWSTART|MEPF_ROWEND)) {
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wc->nAvailWidth = 0;
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wc->bWordWrap = FALSE;
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if (para->member.para.nFlags & MEPF_ROWEND)
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{
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ME_Cell *cell = &ME_FindItemBack(para, diCell)->member.cell;
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cell->nWidth = 0;
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}
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} else if (para->member.para.pCell) {
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ME_Cell *cell = ¶->member.para.pCell->member.cell;
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int width;
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width = cell->nRightBoundary;
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if (cell->prev_cell)
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width -= cell->prev_cell->member.cell.nRightBoundary;
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if (!cell->prev_cell)
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{
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int rowIndent = ME_GetTableRowEnd(para)->member.para.fmt.dxStartIndent;
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width -= rowIndent;
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}
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cell->nWidth = max(ME_twips2pointsX(wc->context, width), 0);
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wc->nAvailWidth = cell->nWidth
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- (wc->nRow ? wc->nLeftMargin : wc->nFirstMargin) - wc->nRightMargin;
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wc->bWordWrap = TRUE;
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} else {
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wc->nAvailWidth = wc->context->nAvailWidth
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- (wc->nRow ? wc->nLeftMargin : wc->nFirstMargin) - wc->nRightMargin;
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}
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wc->pt.x = wc->context->pt.x;
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if (wc->context->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
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pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
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/* Shift the text down because of the border. */
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wc->pt.y++;
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}
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static void layout_row( ME_DisplayItem *start, const ME_DisplayItem *end )
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{
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ME_DisplayItem *p;
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int i, num_runs = 0;
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int buf[16 * 5]; /* 5 arrays - 4 of int & 1 of BYTE, alloc space for 5 of ints */
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int *vis_to_log = buf, *log_to_vis, *widths, *pos;
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BYTE *levels;
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BOOL found_black = FALSE;
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for (p = end->prev; p != start->prev; p = p->prev)
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{
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if (p->type == diRun)
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{
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if (!found_black) found_black = !(p->member.run.nFlags & (MERF_WHITESPACE | MERF_ENDPARA));
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if (found_black) num_runs++;
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}
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}
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TRACE("%d runs\n", num_runs);
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if (!num_runs) return;
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if (num_runs > ARRAY_SIZE( buf ) / 5)
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vis_to_log = heap_alloc( num_runs * sizeof(int) * 5 );
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log_to_vis = vis_to_log + num_runs;
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widths = vis_to_log + 2 * num_runs;
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pos = vis_to_log + 3 * num_runs;
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levels = (BYTE*)(vis_to_log + 4 * num_runs);
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for (i = 0, p = start; i < num_runs; p = p->next)
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{
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if (p->type == diRun)
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{
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levels[i] = p->member.run.script_analysis.s.uBidiLevel;
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widths[i] = p->member.run.nWidth;
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TRACE( "%d: level %d width %d\n", i, levels[i], widths[i] );
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i++;
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}
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}
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ScriptLayout( num_runs, levels, vis_to_log, log_to_vis );
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pos[0] = start->member.run.para->pt.x;
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for (i = 1; i < num_runs; i++)
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pos[i] = pos[i - 1] + widths[ vis_to_log[ i - 1 ] ];
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for (i = 0, p = start; i < num_runs; p = p->next)
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{
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if (p->type == diRun)
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{
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p->member.run.pt.x = pos[ log_to_vis[ i ] ];
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TRACE( "%d: x = %d\n", i, p->member.run.pt.x );
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i++;
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}
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}
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if (vis_to_log != buf) heap_free( vis_to_log );
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}
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static void ME_InsertRowStart(ME_WrapContext *wc, const ME_DisplayItem *pEnd)
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{
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ME_DisplayItem *p, *row;
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ME_Paragraph *para = &wc->pPara->member.para;
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BOOL bSkippingSpaces = TRUE;
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int ascent = 0, descent = 0, width=0, shift = 0, align = 0;
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/* Include height of para numbering label */
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if (wc->nRow == 0 && para->fmt.wNumbering)
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{
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ascent = para->para_num.style->tm.tmAscent;
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descent = para->para_num.style->tm.tmDescent;
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}
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for (p = pEnd->prev; p!=wc->pRowStart->prev; p = p->prev)
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{
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/* ENDPARA run shouldn't affect row height, except if it's the only run in the paragraph */
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if (p->type==diRun && ((p==wc->pRowStart) || !(p->member.run.nFlags & MERF_ENDPARA))) { /* FIXME add more run types */
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if (p->member.run.nAscent>ascent)
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ascent = p->member.run.nAscent;
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if (p->member.run.nDescent>descent)
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descent = p->member.run.nDescent;
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if (bSkippingSpaces)
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{
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/* Exclude space characters from run width.
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* Other whitespace or delimiters are not treated this way. */
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int len = p->member.run.len;
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WCHAR *text = get_text( &p->member.run, len - 1 );
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assert (len);
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if (~p->member.run.nFlags & MERF_GRAPHICS)
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while (len && *(text--) == ' ')
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len--;
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if (len)
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{
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if (len == p->member.run.len)
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width += p->member.run.nWidth;
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else
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width += ME_PointFromCharContext( wc->context, &p->member.run, len, FALSE );
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}
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bSkippingSpaces = !len;
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} else if (!(p->member.run.nFlags & MERF_ENDPARA))
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width += p->member.run.nWidth;
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}
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}
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para->nWidth = max(para->nWidth, width);
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row = ME_MakeRow(ascent+descent, ascent, width);
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if (wc->context->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
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(para->fmt.dwMask & PFM_TABLE) && (para->fmt.wEffects & PFE_TABLE))
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{
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/* The text was shifted down in ME_BeginRow so move the wrap context
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* back to where it should be. */
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wc->pt.y--;
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/* The height of the row is increased by the borders. */
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row->member.row.nHeight += 2;
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}
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row->member.row.pt = wc->pt;
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row->member.row.nLMargin = (!wc->nRow ? wc->nFirstMargin : wc->nLeftMargin);
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row->member.row.nRMargin = wc->nRightMargin;
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assert(para->fmt.dwMask & PFM_ALIGNMENT);
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align = para->fmt.wAlignment;
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if (align == PFA_CENTER)
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shift = max((wc->nAvailWidth-width)/2, 0);
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if (align == PFA_RIGHT)
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shift = max(wc->nAvailWidth-width, 0);
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if (para->nFlags & MEPF_COMPLEX) layout_row( wc->pRowStart, pEnd );
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row->member.row.pt.x = row->member.row.nLMargin + shift;
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for (p = wc->pRowStart; p!=pEnd; p = p->next)
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{
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if (p->type==diRun) { /* FIXME add more run types */
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p->member.run.pt.x += row->member.row.nLMargin+shift;
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}
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}
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if (wc->nRow == 0 && para->fmt.wNumbering)
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{
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para->para_num.pt.x = wc->nParaNumOffset + shift;
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para->para_num.pt.y = wc->pt.y + row->member.row.nBaseline;
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}
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ME_InsertBefore(wc->pRowStart, row);
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wc->nRow++;
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wc->pt.y += row->member.row.nHeight;
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ME_BeginRow(wc);
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}
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static void ME_WrapEndParagraph(ME_WrapContext *wc, ME_DisplayItem *p)
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{
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ME_DisplayItem *para = wc->pPara;
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PARAFORMAT2 *pFmt = ¶->member.para.fmt;
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if (wc->pRowStart)
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ME_InsertRowStart(wc, p);
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if (wc->context->editor->bEmulateVersion10 && /* v1.0 - 3.0 */
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pFmt->dwMask & PFM_TABLE && pFmt->wEffects & PFE_TABLE)
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{
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/* ME_BeginRow was called an extra time for the paragraph, and it shifts the
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* text down by one pixel for the border, so fix up the wrap context. */
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wc->pt.y--;
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}
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/*
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p = para->next;
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while(p) {
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if (p->type == diParagraph || p->type == diTextEnd)
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return;
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if (p->type == diRun)
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{
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ME_Run *run = &p->member.run;
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TRACE("%s - (%d, %d)\n", debugstr_run(run), run->pt.x, run->pt.y);
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}
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p = p->next;
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}
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*/
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}
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static void ME_WrapSizeRun(ME_WrapContext *wc, ME_DisplayItem *p)
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{
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/* FIXME compose style (out of character and paragraph styles) here */
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ME_UpdateRunFlags(wc->context->editor, &p->member.run);
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calc_run_extent(wc->context, &wc->pPara->member.para,
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wc->nRow ? wc->nLeftMargin : wc->nFirstMargin, &p->member.run);
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}
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static int find_non_whitespace(const WCHAR *s, int len, int start)
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{
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int i;
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for (i = start; i < len && ME_IsWSpace( s[i] ); i++)
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;
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return i;
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}
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/* note: these two really return the first matching offset (starting from EOS)+1
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* in other words, an offset of the first trailing white/black */
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/* note: returns offset of the first trailing whitespace */
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static int reverse_find_non_whitespace(const WCHAR *s, int start)
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{
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int i;
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for (i = start; i > 0 && ME_IsWSpace( s[i - 1] ); i--)
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;
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return i;
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}
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/* note: returns offset of the first trailing nonwhitespace */
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static int reverse_find_whitespace(const WCHAR *s, int start)
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{
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int i;
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for (i = start; i > 0 && !ME_IsWSpace( s[i - 1] ); i--)
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;
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return i;
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}
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static ME_DisplayItem *ME_MaximizeSplit(ME_WrapContext *wc, ME_DisplayItem *p, int i)
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{
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ME_DisplayItem *pp, *piter = p;
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int j;
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if (!i)
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return NULL;
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j = reverse_find_non_whitespace( get_text( &p->member.run, 0 ), i);
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if (j>0) {
|
|
pp = split_run_extents(wc, piter, j);
|
|
wc->pt.x += piter->member.run.nWidth;
|
|
return pp;
|
|
}
|
|
else
|
|
{
|
|
pp = piter;
|
|
/* omit all spaces before split point */
|
|
while(piter != wc->pRowStart)
|
|
{
|
|
piter = ME_FindItemBack(piter, diRun);
|
|
if (piter->member.run.nFlags & MERF_WHITESPACE)
|
|
{
|
|
pp = piter;
|
|
continue;
|
|
}
|
|
if (piter->member.run.nFlags & MERF_ENDWHITE)
|
|
{
|
|
i = reverse_find_non_whitespace( get_text( &piter->member.run, 0 ),
|
|
piter->member.run.len );
|
|
pp = split_run_extents(wc, piter, i);
|
|
wc->pt = pp->member.run.pt;
|
|
return pp;
|
|
}
|
|
/* this run is the end of spaces, so the run edge is a good point to split */
|
|
wc->pt = pp->member.run.pt;
|
|
wc->bOverflown = TRUE;
|
|
TRACE("Split point is: %s|%s\n", debugstr_run( &piter->member.run ), debugstr_run( &pp->member.run ));
|
|
return pp;
|
|
}
|
|
wc->pt = piter->member.run.pt;
|
|
return piter;
|
|
}
|
|
}
|
|
|
|
static ME_DisplayItem *ME_SplitByBacktracking(ME_WrapContext *wc, ME_DisplayItem *p, int loc)
|
|
{
|
|
ME_DisplayItem *piter = p, *pp;
|
|
int i, idesp, len;
|
|
ME_Run *run = &p->member.run;
|
|
|
|
idesp = i = find_split_point( wc->context, loc, run );
|
|
len = run->len;
|
|
assert(len>0);
|
|
assert(i<len);
|
|
if (i) {
|
|
/* don't split words */
|
|
i = reverse_find_whitespace( get_text( run, 0 ), i );
|
|
pp = ME_MaximizeSplit(wc, p, i);
|
|
if (pp)
|
|
return pp;
|
|
}
|
|
TRACE("Must backtrack to split at: %s\n", debugstr_run( &p->member.run ));
|
|
if (wc->pLastSplittableRun)
|
|
{
|
|
if (wc->pLastSplittableRun->member.run.nFlags & (MERF_GRAPHICS|MERF_TAB))
|
|
{
|
|
wc->pt = wc->pLastSplittableRun->member.run.pt;
|
|
return wc->pLastSplittableRun;
|
|
}
|
|
else if (wc->pLastSplittableRun->member.run.nFlags & MERF_SPLITTABLE)
|
|
{
|
|
/* the following two lines are just to check if we forgot to call UpdateRunFlags earlier,
|
|
they serve no other purpose */
|
|
ME_UpdateRunFlags(wc->context->editor, run);
|
|
assert((wc->pLastSplittableRun->member.run.nFlags & MERF_SPLITTABLE));
|
|
|
|
piter = wc->pLastSplittableRun;
|
|
run = &piter->member.run;
|
|
len = run->len;
|
|
/* don't split words */
|
|
i = reverse_find_whitespace( get_text( run, 0 ), len );
|
|
if (i == len)
|
|
i = reverse_find_non_whitespace( get_text( run, 0 ), len );
|
|
if (i) {
|
|
ME_DisplayItem *piter2 = split_run_extents(wc, piter, i);
|
|
wc->pt = piter2->member.run.pt;
|
|
return piter2;
|
|
}
|
|
/* splittable = must have whitespaces */
|
|
assert(0 == "Splittable, but no whitespaces");
|
|
}
|
|
else
|
|
{
|
|
/* restart from the first run beginning with spaces */
|
|
wc->pt = wc->pLastSplittableRun->member.run.pt;
|
|
return wc->pLastSplittableRun;
|
|
}
|
|
}
|
|
TRACE("Backtracking failed, trying desperate: %s\n", debugstr_run( &p->member.run ));
|
|
/* OK, no better idea, so assume we MAY split words if we can split at all*/
|
|
if (idesp)
|
|
return split_run_extents(wc, piter, idesp);
|
|
else
|
|
if (wc->pRowStart && piter != wc->pRowStart)
|
|
{
|
|
/* don't need to break current run, because it's possible to split
|
|
before this run */
|
|
wc->bOverflown = TRUE;
|
|
return piter;
|
|
}
|
|
else
|
|
{
|
|
/* split point inside first character - no choice but split after that char */
|
|
if (len != 1) {
|
|
/* the run is more than 1 char, so we may split */
|
|
return split_run_extents(wc, piter, 1);
|
|
}
|
|
/* the run is one char, can't split it */
|
|
return piter;
|
|
}
|
|
}
|
|
|
|
static ME_DisplayItem *ME_WrapHandleRun(ME_WrapContext *wc, ME_DisplayItem *p)
|
|
{
|
|
ME_DisplayItem *pp;
|
|
ME_Run *run;
|
|
int len;
|
|
|
|
assert(p->type == diRun);
|
|
if (!wc->pRowStart)
|
|
wc->pRowStart = p;
|
|
run = &p->member.run;
|
|
run->pt.x = wc->pt.x;
|
|
run->pt.y = wc->pt.y;
|
|
ME_WrapSizeRun(wc, p);
|
|
len = run->len;
|
|
|
|
if (wc->bOverflown) /* just skipping final whitespaces */
|
|
{
|
|
/* End paragraph run can't overflow to the next line by itself. */
|
|
if (run->nFlags & MERF_ENDPARA)
|
|
return p->next;
|
|
|
|
if (run->nFlags & MERF_WHITESPACE) {
|
|
wc->pt.x += run->nWidth;
|
|
/* skip runs consisting of only whitespaces */
|
|
return p->next;
|
|
}
|
|
|
|
if (run->nFlags & MERF_STARTWHITE) {
|
|
/* try to split the run at the first non-white char */
|
|
int black;
|
|
black = find_non_whitespace( get_text( run, 0 ), run->len, 0 );
|
|
if (black) {
|
|
wc->bOverflown = FALSE;
|
|
pp = split_run_extents(wc, p, black);
|
|
calc_run_extent(wc->context, &wc->pPara->member.para,
|
|
wc->nRow ? wc->nLeftMargin : wc->nFirstMargin,
|
|
&pp->member.run);
|
|
ME_InsertRowStart(wc, pp);
|
|
return pp;
|
|
}
|
|
}
|
|
/* black run: the row goes from pRowStart to the previous run */
|
|
ME_InsertRowStart(wc, p);
|
|
return p;
|
|
}
|
|
/* simply end the current row and move on to next one */
|
|
if (run->nFlags & MERF_ENDROW)
|
|
{
|
|
p = p->next;
|
|
ME_InsertRowStart(wc, p);
|
|
return p;
|
|
}
|
|
|
|
/* will current run fit? */
|
|
if (wc->bWordWrap &&
|
|
wc->pt.x + run->nWidth - wc->context->pt.x > wc->nAvailWidth)
|
|
{
|
|
int loc = wc->context->pt.x + wc->nAvailWidth - wc->pt.x;
|
|
/* total white run or end para */
|
|
if (run->nFlags & (MERF_WHITESPACE | MERF_ENDPARA)) {
|
|
/* let the overflow logic handle it */
|
|
wc->bOverflown = TRUE;
|
|
return p;
|
|
}
|
|
/* TAB: we can split before */
|
|
if (run->nFlags & MERF_TAB) {
|
|
wc->bOverflown = TRUE;
|
|
if (wc->pRowStart == p)
|
|
/* Don't split before the start of the run, or we will get an
|
|
* endless loop. */
|
|
return p->next;
|
|
else
|
|
return p;
|
|
}
|
|
/* graphics: we can split before, if run's width is smaller than row's width */
|
|
if ((run->nFlags & MERF_GRAPHICS) && run->nWidth <= wc->nAvailWidth) {
|
|
wc->bOverflown = TRUE;
|
|
return p;
|
|
}
|
|
/* can we separate out the last spaces ? (to use overflow logic later) */
|
|
if (run->nFlags & MERF_ENDWHITE)
|
|
{
|
|
/* we aren't sure if it's *really* necessary, it's a good start however */
|
|
int black = reverse_find_non_whitespace( get_text( run, 0 ), len );
|
|
split_run_extents(wc, p, black);
|
|
/* handle both parts again */
|
|
return p;
|
|
}
|
|
/* determine the split point by backtracking */
|
|
pp = ME_SplitByBacktracking(wc, p, loc);
|
|
if (pp == wc->pRowStart)
|
|
{
|
|
if (run->nFlags & MERF_STARTWHITE)
|
|
{
|
|
/* We had only spaces so far, so we must be on the first line of the
|
|
* paragraph (or the first line after MERF_ENDROW forced the line
|
|
* break within the paragraph), since no other lines of the paragraph
|
|
* start with spaces. */
|
|
|
|
/* The lines will only contain spaces, and the rest of the run will
|
|
* overflow onto the next line. */
|
|
wc->bOverflown = TRUE;
|
|
return p;
|
|
}
|
|
/* Couldn't split the first run, possible because we have a large font
|
|
* with a single character that caused an overflow.
|
|
*/
|
|
wc->pt.x += run->nWidth;
|
|
return p->next;
|
|
}
|
|
if (p != pp) /* found a suitable split point */
|
|
{
|
|
wc->bOverflown = TRUE;
|
|
return pp;
|
|
}
|
|
/* we detected that it's best to split on start of this run */
|
|
if (wc->bOverflown)
|
|
return pp;
|
|
ERR("failure!\n");
|
|
/* not found anything - writing over margins is the only option left */
|
|
}
|
|
if ((run->nFlags & (MERF_SPLITTABLE | MERF_STARTWHITE))
|
|
|| ((run->nFlags & (MERF_GRAPHICS|MERF_TAB)) && (p != wc->pRowStart)))
|
|
{
|
|
wc->pLastSplittableRun = p;
|
|
}
|
|
wc->pt.x += run->nWidth;
|
|
return p->next;
|
|
}
|
|
|
|
static int ME_GetParaLineSpace(ME_Context* c, ME_Paragraph* para)
|
|
{
|
|
int sp = 0, ls = 0;
|
|
if (!(para->fmt.dwMask & PFM_LINESPACING)) return 0;
|
|
|
|
/* FIXME: how to compute simply the line space in ls ??? */
|
|
/* FIXME: does line spacing include the line itself ??? */
|
|
switch (para->fmt.bLineSpacingRule)
|
|
{
|
|
case 0: sp = ls; break;
|
|
case 1: sp = (3 * ls) / 2; break;
|
|
case 2: sp = 2 * ls; break;
|
|
case 3: sp = ME_twips2pointsY(c, para->fmt.dyLineSpacing); if (sp < ls) sp = ls; break;
|
|
case 4: sp = ME_twips2pointsY(c, para->fmt.dyLineSpacing); break;
|
|
case 5: sp = para->fmt.dyLineSpacing / 20; break;
|
|
default: FIXME("Unsupported spacing rule value %d\n", para->fmt.bLineSpacingRule);
|
|
}
|
|
if (c->editor->nZoomNumerator == 0)
|
|
return sp;
|
|
else
|
|
return sp * c->editor->nZoomNumerator / c->editor->nZoomDenominator;
|
|
}
|
|
|
|
static void ME_PrepareParagraphForWrapping(ME_TextEditor *editor, ME_Context *c, ME_DisplayItem *tp) {
|
|
ME_DisplayItem *p;
|
|
|
|
tp->member.para.nWidth = 0;
|
|
/* remove row start items as they will be reinserted by the
|
|
* paragraph wrapper anyway */
|
|
editor->total_rows -= tp->member.para.nRows;
|
|
tp->member.para.nRows = 0;
|
|
for (p = tp->next; p != tp->member.para.next_para; p = p->next) {
|
|
if (p->type == diStartRow) {
|
|
ME_DisplayItem *pRow = p;
|
|
p = p->prev;
|
|
ME_Remove(pRow);
|
|
ME_DestroyDisplayItem(pRow);
|
|
}
|
|
}
|
|
/* join runs that can be joined */
|
|
for (p = tp->next; p != tp->member.para.next_para; p = p->next) {
|
|
assert(p->type != diStartRow); /* should have been deleted above */
|
|
if (p->type == diRun) {
|
|
while (p->next->type == diRun && /* FIXME */
|
|
ME_CanJoinRuns(&p->member.run, &p->next->member.run)) {
|
|
ME_JoinRuns(c->editor, p);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static HRESULT itemize_para( ME_Context *c, ME_DisplayItem *p )
|
|
{
|
|
ME_Paragraph *para = &p->member.para;
|
|
ME_Run *run;
|
|
ME_DisplayItem *di;
|
|
SCRIPT_ITEM buf[16], *items = buf;
|
|
int items_passed = ARRAY_SIZE( buf ), num_items, cur_item;
|
|
SCRIPT_CONTROL control = { LANG_USER_DEFAULT, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE,
|
|
FALSE, FALSE, 0 };
|
|
SCRIPT_STATE state = { 0, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, 0, 0 };
|
|
HRESULT hr;
|
|
|
|
assert( p->type == diParagraph );
|
|
|
|
if (para->fmt.dwMask & PFM_RTLPARA && para->fmt.wEffects & PFE_RTLPARA)
|
|
state.uBidiLevel = 1;
|
|
|
|
TRACE( "Base embedding level %d\n", state.uBidiLevel );
|
|
|
|
while (1)
|
|
{
|
|
hr = ScriptItemize( para->text->szData, para->text->nLen, items_passed, &control,
|
|
&state, items, &num_items );
|
|
if (hr != E_OUTOFMEMORY) break; /* may not be enough items if hr == E_OUTOFMEMORY */
|
|
if (items_passed > para->text->nLen + 1) break; /* something else has gone wrong */
|
|
items_passed *= 2;
|
|
if (items == buf)
|
|
items = heap_alloc( items_passed * sizeof( *items ) );
|
|
else
|
|
items = heap_realloc( items, items_passed * sizeof( *items ) );
|
|
if (!items) break;
|
|
}
|
|
if (FAILED( hr )) goto end;
|
|
|
|
if (TRACE_ON( richedit ))
|
|
{
|
|
TRACE( "got items:\n" );
|
|
for (cur_item = 0; cur_item < num_items; cur_item++)
|
|
{
|
|
TRACE( "\t%d - %d RTL %d bidi level %d\n", items[cur_item].iCharPos, items[cur_item+1].iCharPos - 1,
|
|
items[cur_item].a.fRTL, items[cur_item].a.s.uBidiLevel );
|
|
}
|
|
|
|
TRACE( "before splitting runs into ranges\n" );
|
|
for (di = p->next; di != p->member.para.next_para; di = di->next)
|
|
{
|
|
if (di->type != diRun) continue;
|
|
TRACE( "\t%d: %s\n", di->member.run.nCharOfs, debugstr_run( &di->member.run ) );
|
|
}
|
|
}
|
|
|
|
/* split runs into ranges at item boundaries */
|
|
for (di = p->next, cur_item = 0; di != p->member.para.next_para; di = di->next)
|
|
{
|
|
if (di->type != diRun) continue;
|
|
run = &di->member.run;
|
|
|
|
if (run->nCharOfs == items[cur_item+1].iCharPos) cur_item++;
|
|
|
|
items[cur_item].a.fLogicalOrder = TRUE;
|
|
run->script_analysis = items[cur_item].a;
|
|
|
|
if (run->nFlags & MERF_ENDPARA) break; /* don't split eop runs */
|
|
|
|
if (run->nCharOfs + run->len > items[cur_item+1].iCharPos)
|
|
{
|
|
ME_Cursor cursor = {p, di, items[cur_item+1].iCharPos - run->nCharOfs};
|
|
ME_SplitRunSimple( c->editor, &cursor );
|
|
}
|
|
}
|
|
|
|
if (TRACE_ON( richedit ))
|
|
{
|
|
TRACE( "after splitting into ranges\n" );
|
|
for (di = p->next; di != p->member.para.next_para; di = di->next)
|
|
{
|
|
if (di->type != diRun) continue;
|
|
TRACE( "\t%d: %s\n", di->member.run.nCharOfs, debugstr_run( &di->member.run ) );
|
|
}
|
|
}
|
|
|
|
para->nFlags |= MEPF_COMPLEX;
|
|
|
|
end:
|
|
if (items != buf) heap_free( items );
|
|
return hr;
|
|
}
|
|
|
|
|
|
static HRESULT shape_para( ME_Context *c, ME_DisplayItem *p )
|
|
{
|
|
ME_DisplayItem *di;
|
|
ME_Run *run;
|
|
HRESULT hr;
|
|
|
|
for (di = p->next; di != p->member.para.next_para; di = di->next)
|
|
{
|
|
if (di->type != diRun) continue;
|
|
run = &di->member.run;
|
|
|
|
hr = shape_run( c, run );
|
|
if (FAILED( hr ))
|
|
{
|
|
run->para->nFlags &= ~MEPF_COMPLEX;
|
|
return hr;
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
static void ME_WrapTextParagraph(ME_TextEditor *editor, 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(editor, c, tp);
|
|
|
|
/* Calculate paragraph numbering label */
|
|
para_num_init( c, &tp->member.para );
|
|
|
|
/* 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.fmt;
|
|
|
|
wc.context = c;
|
|
wc.pPara = tp;
|
|
/* wc.para_style = tp->member.para.style; */
|
|
wc.style = NULL;
|
|
wc.nParaNumOffset = 0;
|
|
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.fmt.dxOffset;
|
|
}
|
|
wc.nLeftMargin = ME_twips2pointsX(c, dxStartIndent + pFmt->dxOffset);
|
|
wc.nFirstMargin = ME_twips2pointsX(c, dxStartIndent);
|
|
if (pFmt->wNumbering)
|
|
{
|
|
wc.nParaNumOffset = wc.nFirstMargin;
|
|
dxStartIndent = max( ME_twips2pointsX(c, pFmt->wNumberingTab),
|
|
tp->member.para.para_num.width );
|
|
wc.nFirstMargin += dxStartIndent;
|
|
}
|
|
wc.nRightMargin = ME_twips2pointsX(c, pFmt->dxRightIndent);
|
|
|
|
if (wc.nFirstMargin < 0)
|
|
wc.nFirstMargin = 0;
|
|
if (wc.nLeftMargin < 0)
|
|
wc.nLeftMargin = 0;
|
|
}
|
|
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.fmt.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.fmt.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;
|
|
editor->total_rows += wc.nRow;
|
|
}
|
|
|
|
static void ME_MarkRepaintEnd(ME_DisplayItem *para,
|
|
ME_DisplayItem **repaint_start,
|
|
ME_DisplayItem **repaint_end)
|
|
{
|
|
if (!*repaint_start)
|
|
*repaint_start = para;
|
|
*repaint_end = para;
|
|
}
|
|
|
|
static void adjust_para_y(ME_DisplayItem *item, ME_Context *c, ME_DisplayItem *repaint_start, ME_DisplayItem *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.fmt.dxStartIndent > 0)
|
|
{
|
|
int dxStartIndent = endRowPara->member.para.fmt.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;
|
|
}
|
|
}
|
|
|
|
BOOL ME_WrapMarkedParagraphs(ME_TextEditor *editor)
|
|
{
|
|
ME_DisplayItem *item;
|
|
ME_Context c;
|
|
int totalWidth = editor->nTotalWidth, diff = 0, prev_width;
|
|
ME_DisplayItem *repaint_start = NULL, *repaint_end = NULL;
|
|
ME_Paragraph *para;
|
|
|
|
if (!editor->first_marked_para)
|
|
return FALSE;
|
|
|
|
ME_InitContext(&c, editor, ITextHost_TxGetDC(editor->texthost));
|
|
|
|
item = editor->first_marked_para;
|
|
c.pt = item->member.para.pt;
|
|
while (item != editor->pBuffer->pLast)
|
|
{
|
|
assert(item->type == diParagraph);
|
|
|
|
prev_width = item->member.para.nWidth;
|
|
ME_WrapTextParagraph(editor, &c, item);
|
|
if (prev_width == totalWidth && item->member.para.nWidth < totalWidth)
|
|
totalWidth = get_total_width(editor);
|
|
else
|
|
totalWidth = max(totalWidth, item->member.para.nWidth);
|
|
|
|
if (!item->member.para.nCharOfs)
|
|
ME_MarkRepaintEnd(item->member.para.prev_para, &repaint_start, &repaint_end);
|
|
ME_MarkRepaintEnd(item, &repaint_start, &repaint_end);
|
|
adjust_para_y(item, &c, repaint_start, repaint_end);
|
|
|
|
if (item->member.para.next_para)
|
|
{
|
|
diff = c.pt.y - item->member.para.next_para->member.para.pt.y;
|
|
if (diff)
|
|
{
|
|
para = &item->member.para;
|
|
while (para->next_para && para != &item->member.para.next_marked->member.para &&
|
|
para != &editor->pBuffer->pLast->member.para)
|
|
{
|
|
ME_MarkRepaintEnd(para->next_para, &repaint_start, &repaint_end);
|
|
para->next_para->member.para.pt.y = c.pt.y;
|
|
adjust_para_y(para->next_para, &c, repaint_start, repaint_end);
|
|
para = ¶->next_para->member.para;
|
|
}
|
|
}
|
|
}
|
|
if (item->member.para.next_marked)
|
|
{
|
|
ME_DisplayItem *rem = item;
|
|
item = item->member.para.next_marked;
|
|
remove_marked_para(editor, rem);
|
|
}
|
|
else
|
|
{
|
|
remove_marked_para(editor, item);
|
|
item = editor->pBuffer->pLast;
|
|
}
|
|
c.pt.y = item->member.para.pt.y;
|
|
}
|
|
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;
|
|
}
|
|
|
|
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_SendRequestResize(ME_TextEditor *editor, BOOL force)
|
|
{
|
|
if (editor->nEventMask & ENM_REQUESTRESIZE)
|
|
{
|
|
RECT rc;
|
|
|
|
ITextHost_TxGetClientRect(editor->texthost, &rc);
|
|
|
|
if (force || rc.bottom != editor->nTotalLength)
|
|
{
|
|
REQRESIZE info;
|
|
|
|
info.nmhdr.hwndFrom = NULL;
|
|
info.nmhdr.idFrom = 0;
|
|
info.nmhdr.code = EN_REQUESTRESIZE;
|
|
info.rc = rc;
|
|
info.rc.right = editor->nTotalWidth;
|
|
info.rc.bottom = editor->nTotalLength;
|
|
|
|
editor->nEventMask &= ~ENM_REQUESTRESIZE;
|
|
ITextHost_TxNotify(editor->texthost, info.nmhdr.code, &info);
|
|
editor->nEventMask |= ENM_REQUESTRESIZE;
|
|
}
|
|
}
|
|
}
|