void *DrawClockPicture(double r){
double dang=3.0;
void *img;
DIG *G;
int L,i;
double l,fac,ang,dl;
float h,s,v,vorg;
float Red,Green,Blue;
L = r*0.5+1;
l= L;
dl = l*0.15;
fac = atan(1.0)/45.0;
G = (DIG *)kgInitImage(2*L+1,2*L+1,8);
kgUserFrame(G,-l,-l,l,l);
ang =0.0;
dang *= fac;
kgLineColor(G,3);
RGBtoHSV(Dred,Dgreen,Dblue,&h,&s,&vorg);
v =0.75*vorg;
HSVtoRGB(&Red,&Green,&Blue,h,s,v);
kgChangeColor(G,251,30,30,30);
kgChangeColor(G,253,(int)Red,(int)Green,(int)Blue);
if(vorg < 0.9 ) {
v = vorg*1.4;
if(v>1.0) v=1.0;
HSVtoRGB(&Red,&Green,&Blue,h,s,v);
kgChangeColor(G,252,(int)Red,(int)Green,(int)Blue);
}
else kgChangeColor(G,252,250,250,250);
ang =0.0;
for(i=0;i<12;i++) {
DrawMark(G,ang,dang,l,dl,+2.,-2.,251);
ang += (30*fac);
}
ang =0.0;
for(i=0;i<12;i++) {
DrawMark(G,ang,dang,l,dl,-1.,0.0,252);
ang += (30*fac);
}
#if 1
ang =0.0;
for(i=0;i<12;i++) {
DrawMark(G,ang,dang,l,dl,+1.0,-1.0,253);
ang += (30*fac);
}
#endif
ang =0.0;
for(i=0;i<12;i++) {
DrawMark(G,ang,dang,l,dl,0.,0.,DateColor);
ang += (30*fac);
}
img = kgGetResizedImage(G);
kgCloseImage(G);
return img;
}
void CShadePickerCtrl::SetMark(CPoint pt)
{
CRect cr;
GetClientRect(cr);
pt.y = CLAMP(pt.y, cr.top, cr.bottom);
PtToHLS(cr, pt, m_hls);
DrawMark(FALSE);
m_Mark = pt.y;
DrawMark(TRUE);
UpdateBuddy();
NotifyParent();
}
void CShadePickerCtrl::UpdateColor()
{
CRect cr;
GetClientRect(cr);
CPoint pt;
HLSToPt(cr, m_hls, pt);
if (pt.y != m_Mark) {
DrawMark(FALSE);
m_Mark = pt.y;
DrawMark(TRUE);
}
Invalidate();
UpdateBuddy();
}
void CShadePickerCtrl::ShowMark(bool Enable)
{
if (Enable == m_ShowMark)
return; // nothing to do
m_ShowMark = Enable; // order matters
DrawMark(Enable);
}
/* ---------------------------------------------------------------------------
* switches crosshair off
*/
void
CrosshairOff (bool BlockToo)
{
if (Crosshair.On)
{
Crosshair.On = false;
DrawAttached (BlockToo);
DrawMark (true);
}
}
/* ---------------------------------------------------------------------------
* switches crosshair on
*/
void
CrosshairOn (bool BlockToo)
{
if (!Crosshair.On)
{
Crosshair.On = true;
DrawAttached (BlockToo);
DrawMark (true);
}
}
/****************************************************************************
Desc: グラフを描画する.
Arg: グラフの幅
グラフの高さ
Return: ---
****************************************************************************/
void CStockGraph::Draw(CDC* pDC)
{
DrawBackground(pDC);
DrawKLine(pDC);
DrawVolume(pDC);
for (int iLine = 0; iLine < MA_LINE_MAX; iLine++)
{
DrawMovingAverages(pDC, iLine);
}
if (m_nMarkCount > 0)
DrawMark(pDC);
}
void
ghid_notify_mark_change (bool changes_complete)
{
render_priv *priv = gport->render_priv;
/* We sometimes get called before the GUI is up */
if (gport->drawing_area == NULL)
return;
if (changes_complete)
priv->mark_invalidate_depth --;
if (priv->mark_invalidate_depth < 0)
{
priv->mark_invalidate_depth = 0;
/* A mismatch of changes_complete == false and == true notifications
* is not expected to occur, but we will try to handle it gracefully.
* As we know the mark will have been shown already, we must
* repaint the entire view to be sure not to leave an artaefact.
*/
ghid_invalidate_all ();
return;
}
if (priv->mark_invalidate_depth == 0)
DrawMark ();
if (!changes_complete)
{
priv->mark_invalidate_depth ++;
}
else if (gport->drawing_area != NULL)
{
/* Queue a GTK expose when changes are complete */
ghid_draw_area_update (gport, NULL);
}
}
void CShadePickerCtrl::UpdateMark()
{
CClientDC dc(this);
DrawMark(m_ShowMark, &dc);
}
void CShadePickerCtrl::DrawMark(bool Show)
{
CClientDC dc(this);
DrawMark(Show, &dc);
}
static void
redraw_region (GdkRectangle *rect)
{
int eleft, eright, etop, ebottom;
BoxType region;
render_priv *priv = gport->render_priv;
if (!gport->pixmap)
return;
if (rect != NULL)
{
priv->clip_rect = *rect;
priv->clip = true;
}
else
{
priv->clip_rect.x = 0;
priv->clip_rect.y = 0;
priv->clip_rect.width = gport->width;
priv->clip_rect.height = gport->height;
priv->clip = false;
}
set_clip (priv, priv->bg_gc);
set_clip (priv, priv->offlimits_gc);
set_clip (priv, priv->mask_gc);
set_clip (priv, priv->grid_gc);
region.X1 = MIN(Px(priv->clip_rect.x),
Px(priv->clip_rect.x + priv->clip_rect.width + 1));
region.Y1 = MIN(Py(priv->clip_rect.y),
Py(priv->clip_rect.y + priv->clip_rect.height + 1));
region.X2 = MAX(Px(priv->clip_rect.x),
Px(priv->clip_rect.x + priv->clip_rect.width + 1));
region.Y2 = MAX(Py(priv->clip_rect.y),
Py(priv->clip_rect.y + priv->clip_rect.height + 1));
region.X1 = MAX (0, MIN (PCB->MaxWidth, region.X1));
region.X2 = MAX (0, MIN (PCB->MaxWidth, region.X2));
region.Y1 = MAX (0, MIN (PCB->MaxHeight, region.Y1));
region.Y2 = MAX (0, MIN (PCB->MaxHeight, region.Y2));
eleft = Vx (0);
eright = Vx (PCB->MaxWidth);
etop = Vy (0);
ebottom = Vy (PCB->MaxHeight);
if (eleft > eright)
{
int tmp = eleft;
eleft = eright;
eright = tmp;
}
if (etop > ebottom)
{
int tmp = etop;
etop = ebottom;
ebottom = tmp;
}
if (eleft > 0)
gdk_draw_rectangle (gport->drawable, priv->offlimits_gc,
1, 0, 0, eleft, gport->height);
else
eleft = 0;
if (eright < gport->width)
gdk_draw_rectangle (gport->drawable, priv->offlimits_gc,
1, eright, 0, gport->width - eright, gport->height);
else
eright = gport->width;
if (etop > 0)
gdk_draw_rectangle (gport->drawable, priv->offlimits_gc,
1, eleft, 0, eright - eleft + 1, etop);
else
etop = 0;
if (ebottom < gport->height)
gdk_draw_rectangle (gport->drawable, priv->offlimits_gc,
1, eleft, ebottom, eright - eleft + 1,
gport->height - ebottom);
else
ebottom = gport->height;
gdk_draw_rectangle (gport->drawable, priv->bg_gc, 1,
eleft, etop, eright - eleft + 1, ebottom - etop + 1);
ghid_draw_bg_image();
hid_expose_callback (&ghid_hid, ®ion, 0);
ghid_draw_grid ();
/* In some cases we are called with the crosshair still off */
if (priv->attached_invalidate_depth == 0)
DrawAttached ();
/* In some cases we are called with the mark still off */
if (priv->mark_invalidate_depth == 0)
DrawMark ();
draw_lead_user (priv);
priv->clip = false;
/* Rest the clip for bg_gc, as it is used outside this function */
gdk_gc_set_clip_mask (priv->bg_gc, NULL);
}
void TGraphScale::drawit ( wxDC &dc , wxRect &r , wxRect &inner )
{
wxRect ir = CalcInternalRect ( r ) ;
int border = 2 ;
if ( horizontal )
{
if ( ir.x < inner.x ) ir.x = inner.x ;
while ( ir.GetRight() > inner.GetRight() ) ir.width-- ;
outline = ir ;
ir.height -= border*2 ;
ir.y += border ;
}
else
{
if ( ir.y < inner.y ) ir.y = inner.y ;
while ( ir.GetBottom() > inner.GetBottom() ) ir.height-- ;
outline = ir ;
ir.width -= border*2 ;
ir.x += border ;
}
// Selected? Draw nice background!
if ( selected )
{
dc.SetPen ( *MYPEN ( TGraphDisplay::prettyColor ) ) ;
dc.SetBrush ( *MYBRUSH ( TGraphDisplay::prettyColor ) ) ;
dc.DrawRectangle ( outline ) ;
dc.SetBrush ( *wxTRANSPARENT_BRUSH ) ;
}
// Calculate major and minor units
float multiplier = 10 ; //( unit == _T("s") ) ? 6 : 10 ;
float factor = 1 ;
while ( factor <= max ) factor *= multiplier ;
float f2 = top - bottom ;
while ( factor >= f2 ) factor /= multiplier ;
float major = factor ;
float minor = major / 5 ;
// Draw scale
dc.SetFont ( *MYFONT ( 8 , wxMODERN , wxNORMAL , wxNORMAL ) ) ;
dc.SetTextForeground ( col ) ;
dc.SetPen ( *MYPEN ( col ) ) ;
float p = 0 ;
while ( p > bottom ) p -= minor ;
while ( p < bottom ) p += minor ;
if ( p != bottom ) p -= minor ;
while ( p <= top )
{
wxString label ;
/* if ( unit == _T("s") ) label = wxString::Format ( _T("%d:%2d") , p / 60 , ((int)p) % 60 ) ;
else */label = wxString::Format ( _T("%f") , p ) ;
DrawMark ( dc , p , ir , label , ( p - ((int)(p/major))*major ) == 0 ) ;
p += minor ;
}
// Draw "backline" and name/unit
wxString text = name ;
if ( !unit.IsEmpty() ) text += _T(" [") + unit + _T("]") ;
int tw , th ;
dc.GetTextExtent ( text , &tw , &th ) ;
if ( horizontal )
{
if ( left )
{
dc.DrawLine ( ir.x , ir.y , ir.GetRight() , ir.y ) ;
dc.DrawText ( text , ir.x , ir.y ) ;
}
else
{
dc.DrawLine ( ir.x , ir.GetBottom() , ir.GetRight() , ir.GetBottom() ) ;
dc.DrawText ( text , ir.x , ir.GetBottom() - th ) ;
}
if ( show_mark )
{
int c = GetRealCoord ( GetVirtualCoordinate ( mark , inner ) , inner ) ;
dc.SetPen ( *wxRED_PEN ) ;
dc.DrawLine ( c , ir.GetTop() , c , ir.GetBottom() ) ;
}
}
else
{
if ( left )
{
dc.DrawLine ( ir.x , ir.y , ir.x , ir.GetBottom() ) ;
dc.DrawRotatedText ( text , ir.x + 2 , ir.GetBottom() , 90 ) ;
}
else
{
dc.DrawLine ( ir.GetRight() , ir.y , ir.GetRight() , ir.GetBottom() ) ;
dc.DrawRotatedText ( text , ir.GetRight()-th , ir.GetBottom() , 90 ) ;
}
if ( show_mark )
{
int c = GetRealCoord ( GetVirtualCoordinate ( mark , inner ) , inner ) ;
dc.SetPen ( *wxRED_PEN ) ;
dc.DrawLine ( ir.GetLeft() , c , ir.GetRight() , c ) ;
}
}
last_inner = inner ;
show_mark = false ;
}
// 绘制的顺序，先坐标，再曲线、擦除多余的曲线、坐标值、标记、参数值
void CFFTDisp::DrawCurve()
{
int i,j;
CSize szText;
int x;
int y;
CFont* pOldFont;
CString strMsg;
CPen *pOldPen;
double dErr = 0;
// 与背景对齐
int nSigPicWidth = m_nClientWidth - FFT_LEFT_MARGIN * 2;
int nSigPicHeight = m_nClientHeight - FFT_TOP_MARGIN * 2;
int nSigPicSmallWidth = nSigPicWidth / FFT_NUM_HORZ;
int nSigPicSmallHeight = nSigPicHeight / FFT_NUM_VERT;
// 对齐后的宽度和高度
int nPicWidth = nSigPicSmallWidth * FFT_NUM_HORZ;
int nPicHeight = nSigPicSmallHeight * FFT_NUM_VERT;
if ( m_dcPlot.GetSafeHdc() != NULL )
{
// 清除原来的图像
m_dcPlot.SetBkColor (m_crBackColor) ;
m_dcPlot.FillRect(m_rectPlot, &m_brushBack) ;
// 标题
///////////////////////////////////////////////////////////////////////////
pOldFont = m_dcPlot.SelectObject( &m_fntTitle );
m_dcPlot.SetTextColor( m_crImageColor );
m_dcPlot.TextOut( 2, 2, m_strTitle );
if ( pOldFont != NULL )
{
m_dcPlot.SelectObject( pOldFont );
}
///////////////////////////////////////////////////////////////////////////
/*
// 计算Ain
dErr = 0;
CAdcTestPlatView* pView = (CAdcTestPlatView*)GetParent();
if ( pView != NULL && pView->m_dVpp > 0 )
{
// Ain(峰峰值最大为2V)
dErr = 20*log10( pView->m_dVpp / 2);
}
*/
// 计算Ain
dErr = 0;
// if ( m_dVpp > 0 )
// {
// dErr = 20*log10( m_dVpp / 2);
// }
// 显示曲线、坐标
/////////////////////////////////////////////////////////////////////////
// 画笔
CPen penCh1Signal( PS_SOLID, 1, m_crImageColor );
pOldPen = m_dcPlot.SelectObject( &penCh1Signal );
// 先进行修正(原来更新点数为m_dwDot，所以出现只更新前面数据，后面数据不更新的情况)
// m_dwDot -> MAX_DEPTH
for ( i = 0; i < MAX_DEPTH; i++ )
{
//m_FFTData[i] += dErr;
m_daDispData[i] = m_FFTData[i] + dErr;
}
// 计算最大值/最小值(这段没有意义，实际的最大最小在下面指定)
m_dMaxData = -10000;
m_dMinData = 0;
for ( i = 0; i < m_dwDot; i++ )
{
if ( m_nBeginPos+i >= 0 && m_nBeginPos+i < MAX_DEPTH/2 )
{
if ( m_daDispData[m_nBeginPos+i] > m_dMaxData )
{
m_dMaxData = m_daDispData[m_nBeginPos+i];
}
if ( m_daDispData[m_nBeginPos+i] < m_dMinData )
{
m_dMinData = m_daDispData[m_nBeginPos+i];
}
}
}
// 最大值为0dB
m_dMaxData = 0;
// 最小值为-120dB -> -160
m_dMinData = -160;
// 每像素的点数
double dPointXpixel = (nPicWidth - 0.0) / m_dwDot;
double dPointYpixel = (nPicHeight - 0.0 ) / (m_dMaxData-m_dMinData);
// 画笔
CPen penAxi( PS_DOT, 1, RGB(128, 128, 128));
pOldPen = m_dcPlot.SelectObject( &penAxi );
// 画坐标
double dData;
int nCount;
for ( i = 0; i < m_dwDot; i++ )
{
dData = (m_nBeginPos+i)*m_dOrgSampFreq/MAX_DEPTH;
// 先找到开始的大小
if ( i == 0 )
{
nCount = dData / m_dGap;// + 1
}
if ( dData >= nCount * m_dGap )
{
// 画坐标线
x = FFT_LEFT_MARGIN + (int)(i*dPointXpixel);
y = FFT_TOP_MARGIN;
m_dcPlot.MoveTo( x, y );
x = FFT_LEFT_MARGIN + (int)(i*dPointXpixel);
y = FFT_TOP_MARGIN + nPicHeight;
m_dcPlot.LineTo( x, y );
// 找到第一个后更新计数的大小
nCount++;
}
}
if ( pOldPen != NULL )
{
m_dcPlot.SelectObject( pOldPen );
}
CPen penSideAxi( PS_SOLID, 1, RGB(128, 128, 128));
pOldPen = m_dcPlot.SelectObject( &penSideAxi );
// 开始和最后的两根线
x = FFT_LEFT_MARGIN;
y = FFT_TOP_MARGIN;
m_dcPlot.MoveTo( x, y );
x = FFT_LEFT_MARGIN;
y = FFT_TOP_MARGIN + nPicHeight;
m_dcPlot.LineTo( x, y );
x = FFT_LEFT_MARGIN + nPicWidth;
y = FFT_TOP_MARGIN;
m_dcPlot.MoveTo( x, y );
x = FFT_LEFT_MARGIN + nPicWidth;
y = FFT_TOP_MARGIN + nPicHeight;
m_dcPlot.LineTo( x, y );
// 恢复现场
if ( pOldPen != NULL )
{
m_dcPlot.SelectObject( pOldPen );
}
penAxi.DeleteObject();
penSideAxi.DeleteObject();
// 显示曲线
m_bFirstVaule = TRUE;
for ( i = 0; i < m_dwDot; i++ )
{
// 先移动到第一个有效的点
if ( m_bFirstVaule && m_nBeginPos+i >= 0 && m_nBeginPos+i < MAX_DEPTH )
{
m_bFirstVaule = FALSE;
m_dcPlot.MoveTo( FFT_LEFT_MARGIN + (int)(i*dPointXpixel),
FFT_TOP_MARGIN + nPicHeight - (int)((m_daDispData[m_nBeginPos+i] - m_dMinData)*dPointYpixel) );
}
// 画线
if ( m_nBeginPos+i >= 0 && m_nBeginPos+i < MAX_DEPTH )
{
x = FFT_LEFT_MARGIN + (int)(i*dPointXpixel);
y = FFT_TOP_MARGIN + nPicHeight - (int)((m_daDispData[m_nBeginPos+i] - m_dMinData)*dPointYpixel);
m_dcPlot.LineTo( x, y );
}
}
m_dcPlot.SelectObject( pOldPen );
penCh1Signal.DeleteObject();
// 擦除多余部分
CRect rcFill( 0, FFT_TOP_MARGIN + FFT_NUM_VERT * nSigPicSmallHeight,
m_nClientWidth, m_nClientHeight );
m_dcPlot.FillRect( rcFill, &m_brushBack );
/////////////////////////////////////////////////////////////////////////////
// 显示坐标值
///////////////////////////////////////////////////////////////////////////
// 字体
m_dcPlot.SetTextColor( RGB(128, 128, 128) );
pOldFont = m_dcPlot.SelectObject( &m_fntScale );
// 坐标值
for ( i = 0; i < m_dwDot; i++ )
{
dData = (m_nBeginPos+i)*m_dOrgSampFreq/MAX_DEPTH;
// 先找到开始的大小
if ( i == 0 )
{
if ( dData > 0 )
{
nCount = dData / m_dGap + 1;
}
else
{
nCount = dData / m_dGap;
}
}
if ( dData >= nCount * m_dGap )
{
// 刻度值
//strMsg.Format( "%d", m_nBeginPos+i );
//strMsg.Format( "%.2f", (m_nBeginPos+i)*m_dOrgSampFreq/MAX_DEPTH );
strMsg.Format( "%.2f", nCount * m_dGap - m_dOrgSampFreq / 2 );
szText = m_dcPlot.GetTextExtent( strMsg );
x = FFT_LEFT_MARGIN + (int)(i*dPointXpixel) - szText.cx / 2;
y = FFT_TOP_MARGIN + nPicHeight + 2;
m_dcPlot.TextOut( x, y, strMsg );
nCount++;
}
}
// 显示单位
strMsg = "(MHz)";
szText = m_dcPlot.GetTextExtent( strMsg );
x = FFT_LEFT_MARGIN + nPicWidth/2 - szText.cx / 2;
y = FFT_TOP_MARGIN + nPicHeight + szText.cy;
m_dcPlot.TextOut( x, y, strMsg );
if ( pOldFont != NULL )
{
m_dcPlot.SelectObject( pOldFont );
}
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
// 画标记
#define MARK_NUM 6
#define MINGAP 200
double dMaxData;
int nPos;
int naPos[MARK_NUM];
int t;
bool bMax = FALSE;
for ( i = 0; i < MARK_NUM; i++ )
{
naPos[i] = -1;
}
// 查找5个最大值
for ( i = 0; i < MARK_NUM; i++ )
{
dMaxData = -10000;
//j>0, ignore DC
for ( j = 1; j < MAX_DEPTH; j++ )
{
// if ( j != naPos[0] && j != naPos[1] && j != naPos[2]
// && j != naPos[3] && j != naPos[4] && m_daDispData[j] > dMaxData
// && abs(j-naPos[0])>MINGAP && abs(j-naPos[1])>MINGAP && abs(j-naPos[2])>MINGAP
// && abs(j-naPos[3])>MINGAP && abs(j-naPos[4])>MINGAP)
// {
// dMaxData = m_daDispData[j];
// nPos = j;
// }
if ( m_daDispData[j] > dMaxData)
{
bMax = TRUE;
for (t=0; t<i; ++t)
{
if (j==naPos[t] || abs(j-naPos[t])<MINGAP)
{
bMax = FALSE;
}
}
if (bMax)
{
dMaxData = m_daDispData[j];
nPos = j;
}
}
}
for (t=i; t<MARK_NUM; ++t)
{
naPos[t] = nPos;
}
//TRACE( "pos = %d, data = %f\n", naPos[i], m_daDispData[ naPos[i] ] );
}
pOldFont = m_dcPlot.SelectObject( &m_fntTitle );
m_dcPlot.SetTextColor( RGB(0,255,255) );
// 画标记
CString strMax;
for ( i = 0; i < MARK_NUM; i++ )
{
// 在当前显示的点数范围内才显示
if ( naPos[i] - m_nBeginPos < m_dwDot )
{
x = FFT_LEFT_MARGIN + (int)( (naPos[i]-m_nBeginPos) * dPointXpixel );
y = FFT_TOP_MARGIN + nPicHeight - (int)((m_daDispData[ naPos[i] ] - m_dMinData)*dPointYpixel);
DrawMark( x, y, 'x', RGB(0,255,255) );
strMax.Format( "(%.2f,%.2f)", naPos[i]*m_dOrgSampFreq/MAX_DEPTH,
m_daDispData[ naPos[i] ] );
m_dcPlot.TextOut(x+3, y-3, strMax );
}
}
////////////////////////////////////////////////////////////////////////
// 显示参数
////////////////////////////////////////////////////////////////////////
if ( m_dVpp > 0 && m_bShowParam )
{
// 查找最长的，左边对齐
strMsg.Format( "SFDR = %2.2fdB", m_dSFDR );
szText = m_dcPlot.GetTextExtent( strMsg );
int nLen = szText.cx;
// Ain(峰峰值最大为2V)
dErr = 20*log10( m_dVpp / 2);
strMsg.Format( "AIN = %.2fdB", dErr );
szText = m_dcPlot.GetTextExtent( strMsg );
x = m_nClientWidth - FFT_LEFT_MARGIN - nLen;
y = FFT_TOP_MARGIN + 2;
m_dcPlot.TextOut( x, y, strMsg );
// SNR
strMsg.Format( "SNR = %.2fdB", m_dSNR );
szText = m_dcPlot.GetTextExtent( strMsg );
x = m_nClientWidth - FFT_LEFT_MARGIN - nLen;
y = FFT_TOP_MARGIN + 2 + szText.cy;
m_dcPlot.TextOut( x, y, strMsg );
// SFDR
strMsg.Format( "SFDR = %.2fdB", m_dSFDR );
szText = m_dcPlot.GetTextExtent( strMsg );
x = m_nClientWidth - FFT_LEFT_MARGIN - nLen;
y = FFT_TOP_MARGIN + 2 + szText.cy*2;
m_dcPlot.TextOut( x, y, strMsg );
// SINAD
strMsg.Format( "SINAD = %.2fdB", m_dSINAD );
szText = m_dcPlot.GetTextExtent( strMsg );
x = m_nClientWidth - FFT_LEFT_MARGIN - nLen;
y = FFT_TOP_MARGIN + 2 + szText.cy*3;
m_dcPlot.TextOut( x, y, strMsg );
// ENOB
strMsg.Format( "ENOB = %.2f", m_dENOB );
szText = m_dcPlot.GetTextExtent( strMsg );
x = m_nClientWidth - FFT_LEFT_MARGIN - nLen;
y = FFT_TOP_MARGIN + 2 + szText.cy*4;
m_dcPlot.TextOut( x, y, strMsg );
}
if ( pOldFont != NULL )
{
m_dcPlot.SelectObject( pOldFont );
}
//////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////
// 在顶部显示五个最大值
CString straValue[MARK_NUM];
DWORD dwMarkWidth;
dwMarkWidth = 0;
for ( i = 0; i < MARK_NUM; i++ )
{
// 安全检查
if ( naPos[i] > 0 )
{
straValue[i].Format( "(%.2f,%.2f)", naPos[i]*m_dOrgSampFreq/MAX_DEPTH,
m_daDispData[ naPos[i] ] );
}
szText = m_dcPlot.GetTextExtent( straValue[i] );
dwMarkWidth += szText.cx;
}
pOldFont = m_dcPlot.SelectObject( &m_fntTitle );
m_dcPlot.SetTextColor( RGB(0,255,255) );
// 视图足够宽时显示5个值
if ( dwMarkWidth < nPicWidth )
{
x = (nPicWidth-dwMarkWidth)/2;
y = 0;
szText.cx = 0;
for ( i = 0; i < MARK_NUM; i++ )
{
if ( i > 0 )
{
szText = m_dcPlot.GetTextExtent( straValue[i-1] );
}
x += szText.cx;
m_dcPlot.TextOut( x, y, straValue[i] );
}
}
if ( pOldFont != NULL )
{
m_dcPlot.SelectObject( pOldFont );
}
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////
// 鼠标移动显示坐标值
if ( m_ptMove.x >= FFT_LEFT_MARGIN && m_ptMove.x <= FFT_LEFT_MARGIN + nPicWidth
&& m_ptMove.y >= FFT_TOP_MARGIN && m_ptMove.y <= FFT_TOP_MARGIN + nPicHeight )
{
CString strValue;
int nPos;
nPos = (m_ptMove.x - FFT_LEFT_MARGIN)*m_dwDot/nPicWidth + m_nBeginPos;
if ( nPos >= 0 && nPos < MAX_DEPTH / 2 )
{
// 显示鼠标点的坐标
//strValue.Format( "(%.2f , %.2f)", nPos * m_dOrgSampFreq / MAX_DEPTH,
// -(m_ptMove.y - FFT_TOP_MARGIN) / dPointYpixel );
// 显示曲线上的点频率和幅度
strValue.Format( "(%.2f , %.2f)", nPos * m_dOrgSampFreq / MAX_DEPTH,
m_daDispData[nPos] );
// 字体
pOldFont = m_dcPlot.SelectObject( &m_fntTitle );
m_dcPlot.SetTextColor( RGB(0,255,255) );
// 显示的区域
szText = m_dcPlot.GetTextExtent( strValue );
if ( m_ptMove.x + szText.cx <= FFT_LEFT_MARGIN + nPicWidth
&& m_ptMove.y >= FFT_TOP_MARGIN )
{
m_dcPlot.TextOut( m_ptMove.x, m_ptMove.y - szText.cy, strValue );
}
}
}
//////////////////////////////////////////////////////////////////////////////
Invalidate();
}
}
