void ME_SendSelChange(ME_TextEditor *editor)
{
SELCHANGE sc;
if (!(editor->nEventMask & ENM_SELCHANGE))
return;
sc.nmhdr.code = EN_SELCHANGE;
ME_GetSelection(editor, &sc.chrg.cpMin, &sc.chrg.cpMax);
sc.seltyp = SEL_EMPTY;
if (sc.chrg.cpMin != sc.chrg.cpMax)
sc.seltyp |= SEL_TEXT;
if (sc.chrg.cpMin < sc.chrg.cpMax+1) /* wth were RICHEDIT authors thinking ? */
sc.seltyp |= SEL_MULTICHAR;
TRACE("cpMin=%d cpMax=%d seltyp=%d (%s %s)\n",
sc.chrg.cpMin, sc.chrg.cpMax, sc.seltyp,
(sc.seltyp & SEL_TEXT) ? "SEL_TEXT" : "",
(sc.seltyp & SEL_MULTICHAR) ? "SEL_MULTICHAR" : "");
if (sc.chrg.cpMin != editor->notified_cr.cpMin || sc.chrg.cpMax != editor->notified_cr.cpMax)
{
ME_ClearTempStyle(editor);
editor->notified_cr = sc.chrg;
SendMessageW(GetParent(editor->hWnd), WM_NOTIFY, sc.nmhdr.idFrom, (LPARAM)&sc);
}
}
void
ME_InvalidateSelection(ME_TextEditor *editor)
{
ME_DisplayItem *para1, *para2;
int nStart, nEnd;
int len = ME_GetTextLength(editor);
ME_GetSelection(editor, &nStart, &nEnd);
/* if both old and new selection are 0-char (= caret only), then
there's no (inverted) area to be repainted, neither old nor new */
if (nStart == nEnd && editor->nLastSelStart == editor->nLastSelEnd)
return;
ME_WrapMarkedParagraphs(editor);
ME_GetSelectionParas(editor, ¶1, ¶2);
assert(para1->type == diParagraph);
assert(para2->type == diParagraph);
/* last selection markers aren't always updated, which means
they can point past the end of the document */
if (editor->nLastSelStart > len)
editor->nLastSelEnd = len;
if (editor->nLastSelEnd > len)
editor->nLastSelEnd = len;
/* if the start part of selection is being expanded or contracted... */
if (nStart < editor->nLastSelStart) {
ME_MarkForPainting(editor, para1, ME_FindItemFwd(editor->pLastSelStartPara, diParagraphOrEnd));
} else
if (nStart > editor->nLastSelStart) {
ME_MarkForPainting(editor, editor->pLastSelStartPara, ME_FindItemFwd(para1, diParagraphOrEnd));
}
/* if the end part of selection is being contracted or expanded... */
if (nEnd < editor->nLastSelEnd) {
ME_MarkForPainting(editor, para2, ME_FindItemFwd(editor->pLastSelEndPara, diParagraphOrEnd));
} else
if (nEnd > editor->nLastSelEnd) {
ME_MarkForPainting(editor, editor->pLastSelEndPara, ME_FindItemFwd(para2, diParagraphOrEnd));
}
ME_InvalidateMarkedParagraphs(editor);
/* remember the last invalidated position */
ME_GetSelection(editor, &editor->nLastSelStart, &editor->nLastSelEnd);
ME_GetSelectionParas(editor, &editor->pLastSelStartPara, &editor->pLastSelEndPara);
assert(editor->pLastSelStartPara->type == diParagraph);
assert(editor->pLastSelEndPara->type == diParagraph);
}
static HRESULT WINAPI
IRichEditOle_fnGetClipboardData(IRichEditOle *me, CHARRANGE *lpchrg,
DWORD reco, LPDATAOBJECT *lplpdataobj)
{
IRichEditOleImpl *This = impl_from_IRichEditOle(me);
CHARRANGE tmpchrg;
TRACE("(%p,%p,%d)\n",This, lpchrg, reco);
if(!lplpdataobj)
return E_INVALIDARG;
if(!lpchrg) {
ME_GetSelection(This->editor, (int*)&tmpchrg.cpMin, (int*)&tmpchrg.cpMax);
lpchrg = &tmpchrg;
}
return ME_GetDataObject(This->editor, lpchrg, lplpdataobj);
}
ME_Style *ME_GetSelectionInsertStyle(ME_TextEditor *editor)
{
ME_Style *style;
int from, to;
ME_GetSelection(editor, &from, &to);
if (from != to) {
ME_Cursor c;
ME_CursorFromCharOfs(editor, from, &c);
style = c.pRun->member.run.style;
ME_AddRefStyle(style); /* ME_GetInsertStyle has already done that */
}
else
style = ME_GetInsertStyle(editor, 0);
return style;
}
static void ME_DrawRun(ME_Context *c, int x, int y, ME_DisplayItem *rundi, ME_Paragraph *para)
{
ME_Run *run = &rundi->member.run;
ME_DisplayItem *start = ME_FindItemBack(rundi, diStartRow);
int runofs = run->nCharOfs+para->nCharOfs;
int nSelFrom, nSelTo;
const WCHAR wszSpace[] = {' ', 0};
if (run->nFlags & MERF_HIDDEN)
return;
ME_GetSelection(c->editor, &nSelFrom, &nSelTo);
/* Draw selected end-of-paragraph mark */
if (run->nFlags & MERF_ENDPARA && runofs >= nSelFrom && runofs < nSelTo)
ME_DrawTextWithStyle(c, x, y, wszSpace, 1, run->style, NULL, 0, 1,
c->pt.y + start->member.row.nYPos,
start->member.row.nHeight);
/* you can always comment it out if you need visible paragraph marks */
if (run->nFlags & (MERF_ENDPARA | MERF_TAB | MERF_CELL))
return;
if (run->nFlags & MERF_GRAPHICS)
ME_DrawGraphics(c, x, y, run, para, (runofs >= nSelFrom) && (runofs < nSelTo));
else
{
if (c->editor->cPasswordMask)
{
ME_String *szMasked = ME_MakeStringR(c->editor->cPasswordMask,ME_StrVLen(run->strText));
ME_DrawTextWithStyle(c, x, y,
szMasked->szData, ME_StrVLen(szMasked), run->style, NULL,
nSelFrom-runofs,nSelTo-runofs, c->pt.y+start->member.row.nYPos, start->member.row.nHeight);
ME_DestroyString(szMasked);
}
else
ME_DrawTextWithStyle(c, x, y,
run->strText->szData, ME_StrVLen(run->strText), run->style, NULL,
nSelFrom-runofs,nSelTo-runofs, c->pt.y+start->member.row.nYPos, start->member.row.nHeight);
}
}
ME_Style *ME_GetInsertStyle(ME_TextEditor *editor, int nCursor) {
if (ME_IsSelection(editor))
{
ME_Cursor c;
int from, to;
ME_GetSelection(editor, &from, &to);
ME_CursorFromCharOfs(editor, from, &c);
ME_AddRefStyle(c.pRun->member.run.style);
return c.pRun->member.run.style;
}
if (editor->pBuffer->pCharStyle) {
ME_AddRefStyle(editor->pBuffer->pCharStyle);
return editor->pBuffer->pCharStyle;
}
else
{
ME_Cursor *pCursor = &editor->pCursors[nCursor];
ME_DisplayItem *pRunItem = pCursor->pRun;
ME_DisplayItem *pPrevItem = NULL;
if (pCursor->nOffset) {
ME_Run *pRun = &pRunItem->member.run;
ME_AddRefStyle(pRun->style);
return pRun->style;
}
pPrevItem = ME_FindItemBack(pRunItem, diRunOrParagraph);
if (pPrevItem->type == diRun)
{
ME_AddRefStyle(pPrevItem->member.run.style);
return pPrevItem->member.run.style;
}
else
{
ME_AddRefStyle(pRunItem->member.run.style);
return pRunItem->member.run.style;
}
}
}
int ME_SetSelection(ME_TextEditor *editor, int from, int to)
{
int selectionEnd = 0;
const int len = ME_GetTextLength(editor);
/* all negative values are effectively the same */
if (from < 0)
from = -1;
if (to < 0)
to = -1;
/* select all */
if (from == 0 && to == -1)
{
editor->pCursors[1].pRun = ME_FindItemFwd(editor->pBuffer->pFirst, diRun);
editor->pCursors[1].nOffset = 0;
editor->pCursors[0].pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
editor->pCursors[0].nOffset = 0;
ME_InvalidateSelection(editor);
ME_ClearTempStyle(editor);
return len + 1;
}
/* if both values are equal and also out of bound, that means to */
/* put the selection at the end of the text */
if ((from == to) && (to < 0 || to > len))
{
selectionEnd = 1;
}
else
{
/* if from is negative and to is positive then selection is */
/* deselected and caret moved to end of the current selection */
if (from < 0)
{
int start, end;
ME_GetSelection(editor, &start, &end);
editor->pCursors[1] = editor->pCursors[0];
ME_Repaint(editor);
ME_ClearTempStyle(editor);
return end;
}
/* adjust to if it's a negative value */
if (to < 0)
to = len + 1;
/* flip from and to if they are reversed */
if (from>to)
{
int tmp = from;
from = to;
to = tmp;
}
/* after fiddling with the values, we find from > len && to > len */
if (from > len)
selectionEnd = 1;
/* special case with to too big */
else if (to > len)
to = len + 1;
}
if (selectionEnd)
{
editor->pCursors[1].pRun = editor->pCursors[0].pRun = ME_FindItemBack(editor->pBuffer->pLast, diRun);
editor->pCursors[1].nOffset = editor->pCursors[0].nOffset = 0;
ME_InvalidateSelection(editor);
ME_ClearTempStyle(editor);
return len;
}
ME_RunOfsFromCharOfs(editor, from, &editor->pCursors[1].pRun, &editor->pCursors[1].nOffset);
ME_RunOfsFromCharOfs(editor, to, &editor->pCursors[0].pRun, &editor->pCursors[0].nOffset);
return to;
}
void ME_DeleteSelection(ME_TextEditor *editor)
{
int from, to;
ME_GetSelection(editor, &from, &to);
ME_DeleteTextAtCursor(editor, ME_GetSelCursor(editor,-1), to-from);
}
