diff options
| author | nyamatongwe <unknown> | 2002-01-09 12:01:59 +0000 |
|---|---|---|
| committer | nyamatongwe <unknown> | 2002-01-09 12:01:59 +0000 |
| commit | 17b6ad8a14d170c8950e5d86b99951823076a195 (patch) | |
| tree | ffc195db7e99d1e83ae0f2f93ff3b55ec1f05c75 | |
| parent | aa198fd4c72ac4ac7b89280d12e2ef8e6e0543cb (diff) | |
| download | scintilla-mirror-17b6ad8a14d170c8950e5d86b99951823076a195.tar.gz | |
Optimization that asks for the position of the scroll bar and does not set
it if it does not change.
Using scroll bar APIs that allow larger 32 bit values.
| -rw-r--r-- | win32/ScintillaWin.cxx | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/win32/ScintillaWin.cxx b/win32/ScintillaWin.cxx index 1293d0737..ccf7402a1 100644 --- a/win32/ScintillaWin.cxx +++ b/win32/ScintillaWin.cxx @@ -847,12 +847,25 @@ void ScintillaWin::ScrollText(int linesToMove) { ::UpdateWindow(MainHWND()); } +// Change the scroll position but avoid repaint if changing to same value +static void ChangeScrollPos(HWND w, int barType, int pos) { + SCROLLINFO sci = { + sizeof(sci),0,0,0,0,0,0 + }; + sci.fMask = SIF_POS; + ::GetScrollInfo(w, barType, &sci); + if (sci.nPos != pos) { + sci.nPos = pos; + ::SetScrollInfo(w, barType, &sci, TRUE); + } +} + void ScintillaWin::SetVerticalScrollPos() { - ::SetScrollPos(MainHWND(), SB_VERT, topLine, TRUE); + ChangeScrollPos(MainHWND(), SB_VERT, topLine); } void ScintillaWin::SetHorizontalScrollPos() { - ::SetScrollPos(MainHWND(), SB_HORZ, xOffset, TRUE); + ChangeScrollPos(MainHWND(), SB_HORZ, xOffset); } bool ScintillaWin::ModifyScrollBars(int nMax, int nPage) { |