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fixed first and last line calculations

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This commit is contained in:
Erik Faye-Lund 2007-12-04 02:09:17 +00:00
parent 5dc27deef9
commit d4a3bf9b85
1 changed files with 7 additions and 5 deletions
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12
trackview.cpp
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@ -62,15 +62,17 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
{ {
TCHAR temp[256]; TCHAR temp[256];
int firstLine = 0; // scrollPosY + max((rcTracks.top - topMarginHeight) / fontHeight, 0); int firstLine = editLine - windowLines / 2 - 1;
int lastLine = lines; // scrollPosY + min(((rcTracks.bottom - topMarginHeight) + (fontHeight - 1)) / fontHeight, lines - 1); int lastLine = editLine + windowLines / 2 + 1;
/* clamp first & last line */
firstLine = min(max(firstLine, 0), lines - 1);
lastLine = min(max(lastLine, 0), lines - 1);
// int editLine = firstLine + (lastLine - firstLine) / 2; // int editLine = firstLine + (lastLine - firstLine) / 2;
HBRUSH editBrush = CreateSolidBrush(RGB(255, 255, 0)); HBRUSH editBrush = CreateSolidBrush(RGB(255, 255, 0));
// HBRUSH editBrush = CreateSolidBrush(RGB(255, 255, 0)); // HBRUSH editBrush = CreateSolidBrush(RGB(255, 255, 0));
lastLine = min(lastLine, lines) - 1;
RECT topLeftCorner; RECT topLeftCorner;
topLeftCorner.top = 0; topLeftCorner.top = 0;
topLeftCorner.bottom = topMarginHeight; topLeftCorner.bottom = topMarginHeight;
@ -102,7 +104,7 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
else if ((line % 4) == 0) SetTextColor(hdc, RGB(64, 64, 64)); else if ((line % 4) == 0) SetTextColor(hdc, RGB(64, 64, 64));
else SetTextColor(hdc, RGB(128, 128, 128)); else SetTextColor(hdc, RGB(128, 128, 128));
_sntprintf_s(temp, 256, _T("%04Xh"), line); _sntprintf_s(temp, 256, _T("%0*Xh"), 5, line);
TextOut(hdc, TextOut(hdc,
leftMargin.left, leftMargin.top, leftMargin.left, leftMargin.top,
temp, int(_tcslen(temp)) temp, int(_tcslen(temp))