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richedit: Prevent autoscrolling without ES_AUTO[VH]SCROLL style.
When the richedit control is created without the ES_AUTOHSCROLL or the ES_AUTOVSCROLL, then scrolling isn't done automatically when moving the cursor with the arrow keys, drag selecting with the mouse, or even from using the EM_SCROLLCARET (based on testing using a modified version of wordpad).
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1 changed files with 14 additions and 4 deletions
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@ -1242,11 +1242,21 @@ void ME_EnsureVisible(ME_TextEditor *editor, ME_Cursor *pCursor)
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assert(pRow);
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assert(pPara);
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x = pRun->pt.x + ME_PointFromChar(editor, pRun, pCursor->nOffset);
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if (x > editor->horz_si.nPos + editor->sizeWindow.cx)
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x = x + 1 - editor->sizeWindow.cx;
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else if (x > editor->horz_si.nPos)
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if (editor->styleFlags & ES_AUTOHSCROLL)
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{
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x = pRun->pt.x + ME_PointFromChar(editor, pRun, pCursor->nOffset);
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if (x > editor->horz_si.nPos + editor->sizeWindow.cx)
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x = x + 1 - editor->sizeWindow.cx;
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else if (x > editor->horz_si.nPos)
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x = editor->horz_si.nPos;
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if (~editor->styleFlags & ES_AUTOVSCROLL)
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ME_HScrollAbs(editor, x);
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} else {
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if (~editor->styleFlags & ES_AUTOVSCROLL)
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return;
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x = editor->horz_si.nPos;
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}
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y = pPara->member.para.pt.y + pRow->member.row.pt.y;
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yheight = pRow->member.row.nHeight;
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