LRESULT FProgress::OnMouseButton(UINT message, WPARAM, LPARAM lParam, BOOL&)
{
if (message == WM_LBUTTONDOWN)
{
POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
FRect rClient;
GetClientRect(&rClient);
int AvailPx = (int)GetAvail(rClient.Width());
if (pt.x < AvailPx)
{
if (m_hWnd != GetCapture())
{
SetCapture();
m_dwFlags|=FPROGRESS_MOUSEDOWN;
SetCurrentFromMax((double)pt.x, (double)rClient.Width());
InvalidateRect(NULL, TRUE);
SendMessage(GetParent(), WM_HSCROLL, MAKEWPARAM(GetMenu(), TB_THUMBPOSITION), (LPARAM)m_hWnd);
m_LastMousePt = pt;
}
}
}
else
if (message == WM_LBUTTONUP)
{
m_LastMousePt.x = m_LastMousePt.y = 0;
ReleaseCapture();
m_dwFlags&=~FPROGRESS_MOUSEDOWN;
}
return 0;
}
LRESULT FProgress::OnMouseMove(UINT, WPARAM, LPARAM lParam, BOOL&)
{
POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
FRect rClient;
GetClientRect(&rClient);
int AvailPx = (int)GetAvail(rClient.Width());
if (pt.x <= AvailPx)
m_CurCursorIndex = 1; //Hand
else
m_CurCursorIndex = 0; //Arrow
if (m_dwFlags & FPROGRESS_MOUSEDOWN)
{
if (pt.x > rClient.Width())
pt.x = rClient.Width();
SetCurrentFromMax((double)pt.x, (double)rClient.Width());
InvalidateRect(NULL, TRUE);
SendMessage(GetParent(), WM_HSCROLL, MAKEWPARAM(GetMenu(), TB_THUMBPOSITION), (LPARAM)m_hWnd);
}
return 0;
}
void FProgress::DrawMeter(CDC& dc, FRect& rcPaint)
{
//fill the unavailable
int nLines = rcPaint.Width() / (gLineDistance + gPenWidth) + 1;
int nAvailLines = (int)GetAvail((double)nLines) ;
int nCurrLines = (int)GetCurrent((double)nLines);
assert(nAvailLines >= nCurrLines);
int x = rcPaint.left;
int y = rcPaint.top;
dc.MoveTo(x, y);
int lh = rcPaint.Height() - 0;
int mh = lh;
int nPenIndex = 2;
dc.SelectPen(m_Pens[nPenIndex]);
dword dwStyle = GetWindowLong(GWL_STYLE);
for (int k = 0; k < nLines; k++)
{
if (k == nCurrLines)
{
if (k < nAvailLines)
dc.SelectPen(m_Pens[1]);
else
dc.SelectPen(m_Pens[0]);
if (dwStyle & PROG_LARGER_CURRENT)
{
lh = lh / 2;
y += lh / 2;
dc.MoveTo(x, y);
}
}
else if (k == nAvailLines)
{
dc.SelectPen(m_Pens[0]);
}
if (dwStyle & PROG_GROWING)
{
double dblNow = (double)k / (double)nLines;
lh = (int)(mh * dblNow);
y = mh - lh;
dc.MoveTo(x, y);
}
dc.LineTo(x, y + lh);
x += gLineDistance;
x += gPenWidth;
dc.MoveTo(x, y);
}
}
// ---------------------------------------------------------------------------
// バッファから音を貰う
//
int SoundBuffer2::Get(Sample* dest, int samples)
{
CriticalSection::Lock lock(cs);
if (!buffer)
return 0;
for (int s=samples; s>0; )
{
int xsize = Min(s, buffersize - read);
int avail = GetAvail();
// 供給不足なら追加
if (xsize <= avail || fillwhenempty)
{
if (xsize > avail)
FillMain(xsize - avail);
memcpy(dest, buffer + read * ch, xsize * ch * sizeof(Sample));
dest += xsize * ch;
read += xsize;
}
else
{
if (avail > 0)
{
memcpy(dest, buffer + read * ch, avail * ch * sizeof(Sample));
dest += avail * ch;
read += avail;
}
memset(dest, 0, (xsize - avail) * ch * sizeof(Sample));
dest += (xsize - avail) * ch;
}
s -= xsize;
if (read >= buffersize)
read -= buffersize;
}
return samples;
}
int SoundBuffer2::FillMain(int samples)
{
// リングバッファの空きを計算
int free = buffersize - GetAvail();
if (!fillwhenempty && (samples > free-1))
{
int skip = Min(samples-free+1, buffersize-free);
free += skip;
read += skip;
if (read > buffersize)
read -= buffersize;
}
// 書きこむべきデータ量を計算
samples = Min(samples, free-1);
if (samples > 0)
{
// 書きこむ
if (buffersize - write >= samples)
{
// 一度で書ける場合
source->Get(buffer + write * ch, samples);
}
else
{
// ２度に分けて書く場合
source->Get(buffer + write * ch, buffersize - write);
source->Get(buffer, samples - (buffersize - write));
}
write += samples;
if (write >= buffersize)
write -= buffersize;
}
return samples;
}
// ---------------------------------------------------------------------------
// バッファが空か，空に近い状態か?
//
bool SoundBuffer2::IsEmpty()
{
return GetAvail() == 0;
}