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some more hscrolling!

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This commit is contained in:
Erik Faye-Lund 2007-12-04 19:43:03 +00:00
parent aff6317808
commit f483f6cfc2
2 changed files with 51 additions and 14 deletions
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56
trackview.cpp
View File

@ -21,7 +21,9 @@ TrackView::TrackView(HWND hwnd)
scrollPosY = 0;
windowWidth = -1;
windowHeight = -1;
editLine = 0;
editTrack = 0;
this->hwnd = hwnd;
@ -38,6 +40,11 @@ int TrackView::getScreenY(int line)
return topMarginHeight + (line * fontHeight) - scrollPosY;
}
int TrackView::getScreenX(int track)
{
return leftMarginWidth + (track * trackWidth) - scrollPosX;
}
void TrackView::onCreate()
{
setupScrollBars();
@ -119,23 +126,22 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
SetTextColor(hdc, RGB(0, 0, 0));
int trackLeft = leftMarginWidth - scrollPosX;
for (int x = 0; x < tracks; ++x)
for (int track = 0; track < tracks; ++track)
{
RECT topMargin;
topMargin.top = 0;
topMargin.bottom = topMarginHeight;
topMargin.left = trackLeft;
topMargin.right = trackLeft + trackWidth;
topMargin.left = getScreenX(track);
topMargin.right = topMargin.left + trackWidth;
RECT fillRect = topMargin;
DrawEdge(hdc, &fillRect, BDR_RAISEDINNER | BDR_RAISEDOUTER, BF_ADJUST | BF_LEFT | BF_RIGHT | BF_BOTTOM);
FillRect(hdc, &fillRect, (HBRUSH)GetStockObject(LTGRAY_BRUSH));
/* format the text */
_sntprintf_s(temp, 256, _T("track %d"), x);
_sntprintf_s(temp, 256, _T("track %d"), track);
TextOut(hdc,
fillRect.left, 0,
temp, int(_tcslen(temp))
@ -146,8 +152,8 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
for (int line = firstLine; line <= lastLine; ++line)
{
RECT patternDataRect;
patternDataRect.left = trackLeft;
patternDataRect.right = trackLeft + trackWidth;
patternDataRect.left = getScreenX(track);
patternDataRect.right = patternDataRect.left + trackWidth;
patternDataRect.top = getScreenY(line);
patternDataRect.bottom = patternDataRect.top + fontHeight;
@ -156,7 +162,7 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
if (line == editLine) bgBrush = editBrush;
RECT fillRect = patternDataRect;
if (line == editLine && x == 1) DrawEdge(hdc, &fillRect, BDR_RAISEDINNER | BDR_SUNKENOUTER, BF_ADJUST | BF_TOP | BF_BOTTOM | BF_LEFT | BF_RIGHT);
if (line == editLine && track == editTrack) DrawEdge(hdc, &fillRect, BDR_RAISEDINNER | BDR_SUNKENOUTER, BF_ADJUST | BF_TOP | BF_BOTTOM | BF_LEFT | BF_RIGHT);
FillRect( hdc, &fillRect, bgBrush);
bool key = (line % 8 == 0);
@ -166,7 +172,7 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
if (!key) _sntprintf_s(temp, 256, _T(" - - -"));
else _sntprintf_s(temp, 256, _T("%2.2f"), val);
TextOut(hdc,
trackLeft, patternDataRect.top,
patternDataRect.left, patternDataRect.top,
temp, int(_tcslen(temp))
);
}
@ -179,14 +185,14 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
DrawEdge(hdc, &bottomMargin, BDR_SUNKENINNER | BDR_RAISEDOUTER, BF_ADJUST | BF_TOP);
FillRect(hdc, &bottomMargin, (HBRUSH)GetStockObject(WHITE_BRUSH));
*/
trackLeft += trackWidth;
}
/* pad top margin to the left edge */
RECT topMargin;
topMargin.top = 0;
topMargin.bottom = topMarginHeight;
topMargin.left = trackLeft;
topMargin.left = getScreenX(tracks);
topMargin.right = rcTracks.right;
DrawEdge(hdc, &topMargin, BDR_SUNKENINNER | BDR_RAISEDOUTER, BF_ADJUST | BF_LEFT);
FillRect(hdc, &topMargin, (HBRUSH)GetStockObject(LTGRAY_BRUSH));
@ -195,7 +201,7 @@ void TrackView::paintTracks(HDC hdc, RECT rcTracks)
RECT rightMargin;
rightMargin.top = getScreenY(0);
rightMargin.bottom = getScreenY(lines);
rightMargin.left = trackLeft;
rightMargin.left = getScreenX(tracks);
rightMargin.right = rcTracks.right;
FillRect( hdc, &rightMargin, (HBRUSH)GetStockObject(GRAY_BRUSH));
@ -298,6 +304,29 @@ void TrackView::setEditLine(int newEditLine)
setScrollPos(scrollPosX, (editLine * fontHeight) - ((windowHeight - topMarginHeight) / 2) + fontHeight / 2);
}
void TrackView::setEditTrack(int newEditTrack)
{
int oldEditTrack = editTrack;
editTrack = newEditTrack;
// clamp to document
editTrack = max(editTrack, 0);
editTrack = min(editTrack, tracks - 1);
RECT trackRect;
trackRect.top = getScreenY(editLine);
trackRect.bottom = trackRect.top + fontHeight;
trackRect.left = getScreenX(oldEditTrack);
trackRect.right = trackRect.left + trackWidth;
InvalidateRect(hwnd, &trackRect, TRUE);
trackRect.left = getScreenX(editTrack);
trackRect.right = trackRect.left + trackWidth;
InvalidateRect(hwnd, &trackRect, TRUE);
}
static int getScrollPos(HWND hwnd, int bar)
{
SCROLLINFO si = { sizeof(si), SIF_TRACKPOS };
@ -375,6 +404,9 @@ void TrackView::onKeyDown(UINT keyCode, UINT flags)
case VK_UP: setEditLine(editLine - 1); break;
case VK_DOWN: setEditLine(editLine + 1); break;
case VK_LEFT: setEditTrack(editTrack - 1); break;
case VK_RIGHT: setEditTrack(editTrack + 1); break;
case VK_PRIOR: setEditLine(editLine - windowLines / 2); break;
case VK_NEXT: setEditLine(editLine + windowLines / 2); break;
}

9
trackview.h
View File

@ -21,12 +21,17 @@ public:
void setupScrollBars();
void setScrollPos(int newScrollPosX, int newScrollPosY);
void setEditLine(int newEditLine);
void scrollWindow(int newScrollPosX, int newScrollPosY);
void setEditLine(int newEditLine);
void setEditTrack(int newEditTrack);
int getScreenY(int line);
int getScreenX(int track);
int editLine;
/* cursor position */
int editLine, editTrack;
int scrollPosX, scrollPosY;
int windowWidth, windowHeight;
int windowLines;