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- Implement EM_LINESCROLL message handling

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- Fix a problem with scrolling over the end of the text in
  WM_WHEELMOUSE.
This commit is contained in:
Hannu Valtonen 2005-05-23 09:54:32 +00:00 committed by Alexandre Julliard
parent e9029159a8
commit 0d64267ef0
1 changed files with 22 additions and 8 deletions
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30
dlls/riched20/editor.c
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@ -79,7 +79,7 @@
- EM_LINEFROMCHAR
- EM_LINEINDEX
- EM_LINELENGTH
- EM_LINESCROLL
+ EM_LINESCROLL
- EM_PASTESPECIAL
- EM_POSFROMCHARS
+ EM_REDO 2.0
@ -843,7 +843,6 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
UNSUPPORTED_MSG(EM_LINEFROMCHAR)
UNSUPPORTED_MSG(EM_LINEINDEX)
UNSUPPORTED_MSG(EM_LINELENGTH)
UNSUPPORTED_MSG(EM_LINESCROLL)
UNSUPPORTED_MSG(EM_PASTESPECIAL)
/* UNSUPPORTED_MSG(EM_POSFROMCHARS) missing in Wine headers */
UNSUPPORTED_MSG(EM_REQUESTRESIZE)
@ -1018,6 +1017,22 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
case EM_GETPARAFORMAT:
ME_GetSelectionParaFormat(editor, (PARAFORMAT2 *)lParam);
return 0;
case EM_LINESCROLL:
{
int nPos = editor->nScrollPosY, nEnd= editor->nTotalLength - editor->sizeWindow.cy;
nPos += 8 * lParam; /* FIXME follow the original */
if (nPos>=nEnd)
nPos = nEnd;
if (nPos<0)
nPos = 0;
if (nPos != editor->nScrollPosY) {
ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);
editor->nScrollPosY = nPos;
SetScrollPos(hWnd, SB_VERT, nPos, TRUE);
UpdateWindow(hWnd);
}
return TRUE; /* Should return false if a single line richedit control */
}
case WM_CLEAR:
{
int from, to;
@ -1314,16 +1329,15 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
}
case WM_MOUSEWHEEL:
{
int gcWheelDelta = 0, nPos = editor->nScrollPosY;
int gcWheelDelta = 0, nPos = editor->nScrollPosY, nEnd = editor->nTotalLength - editor->sizeWindow.cy;
UINT pulScrollLines;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES,0, &pulScrollLines, 0);
gcWheelDelta -= GET_WHEEL_DELTA_WPARAM(wParam);
if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
nPos += pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8;
if(nPos>=editor->nTotalLength)
nPos = editor->nTotalLength - 1;
if (nPos<0)
nPos += pulScrollLines * (gcWheelDelta / WHEEL_DELTA) * 8; /* FIXME follow the original */
if (nPos>=nEnd)
nPos = nEnd;
if (nPos<0)
nPos = 0;
if (nPos != editor->nScrollPosY) {
ScrollWindow(hWnd, 0, editor->nScrollPosY-nPos, NULL, NULL);