QRectF Zone::boundingRect() const
{
// Assuming that (0,0) is the center of the object
QRectF rectF(-width/2, -height/2, width, height);
return rectF;
}
void KPaintShape::paintEllipse(QPainter &painter, const QPointF &startPoint,
const QPointF &endPoint, float rotateAngle, bool bScale)
{
QPointF central = calShapeCentralPoint(startPoint,endPoint);
setShapePainter(painter, central, rotateAngle, bScale);
QRectF rectF(startPoint, endPoint);
painter.drawEllipse(rectF);
}
void RenderContext::DrawStringRectWithFlags(const wchar_t* text, size_t len, const Font& font, Color color, const Rect& rect, int flags)
{
Gdiplus::Graphics graphics(dc_);
Gdiplus::SolidBrush brush(Gdiplus::Color((unsigned int)color));
Gdiplus::Font gdi_font(dc_, font.ToHFONT());
Gdiplus::StringFormat format;
Gdiplus::RectF rectF(rect.x(), rect.y(), rect.width(), rect.height());
GetStringFormat(format, flags);
graphics.SetTextRenderingHint(Gdiplus::TextRenderingHintAntiAlias);
graphics.DrawString(text, len, &gdi_font, rectF, &format, &brush);
}
//获取grid的str的作画rect
QRectF CDigitalStatusPrinter::CenterInGrid(int left,int right,int y,QString str)
{
QFontMetrics metics(m_font);
int nDescWidth = metics.width(str);
int nHeight = metics.height();
int nStart = (left+right)/2;
nStart = nStart - nDescWidth/2;
int nWidth = right-nStart;
QRectF rectF(nStart,y,nWidth,nHeight);
return rectF;
}
//______________________________________
void ShadowDemoWidget::updateBackgroundPixmap( void )
{
// check if background pixmap needs update
QRect backgroundRect( QPoint( 0, 0 ), size() - QSize( 2*_shadowSize, 2*_shadowSize ) );
if( !_backgroundPixmap.isNull() && _backgroundPixmap.size() == backgroundRect.size() )
{ return; }
_backgroundPixmap = QPixmap( backgroundRect.size() );
_backgroundPixmap.fill( Qt::transparent );
QPainter painter( &_backgroundPixmap );
painter.setRenderHint( QPainter::Antialiasing );
_dummy.resize( backgroundRect.size() );
helper().renderWindowBackground(
&painter, backgroundRect,
&_dummy, &_dummy, palette().color( QPalette::Window ), 0, 64 );
// float frame
helper().drawFloatFrame( &painter, backgroundRect.adjusted( -1, -1, 1, 1 ), palette().color( QPalette::Window ), false );
// add rounded mask
painter.save();
painter.setCompositionMode( QPainter::CompositionMode_DestinationIn );
painter.setBrush( Qt::black );
painter.setPen( Qt::NoPen );
if( _square )
{
QRectF rectF( backgroundRect );
QPainterPath path;
// rotate counterclockwise, cause that makes angles easier
path.moveTo( rectF.topLeft() + QPointF( 3.5, 0 ) );
path.arcTo( QRectF( rectF.topLeft(), QSize( 7, 7 ) ), 90, 90 );
path.lineTo( rectF.bottomLeft() );
path.lineTo( rectF.bottomRight() );
path.lineTo( rectF.topRight() + QPointF( 0, 3.5 ) );
path.arcTo( QRectF( rectF.topRight() + QPointF( -7, 0 ), QSize( 7, 7 ) ), 0, 90 );
path.lineTo( rectF.topLeft() + QPointF( 3.5, 0 ) );
painter.drawPath( path );
} else {
painter.drawRoundedRect( QRectF( backgroundRect ), 3.5, 3.5 );
}
painter.restore();
}
void RenderContext::CalcStringSizeWithFlags(const wchar_t* text, size_t text_len, const Font& font, const Size& sz, int flags, Size& out, size_t* len /*= NULL*/, int* lines /*= NULL*/)
{
HDC hdc = GetDC(NULL);
Gdiplus::Graphics graphics(hdc);
Gdiplus::Font gdi_font(hdc, font.ToHFONT());
Gdiplus::StringFormat format;
Gdiplus::RectF rectF(0, 0, sz.width(), sz.height());
Gdiplus::RectF outF;
GetStringFormat(format, flags);
graphics.SetTextRenderingHint(Gdiplus::TextRenderingHintAntiAlias);
graphics.MeasureString(text, text_len, &gdi_font, rectF, &format, &outF, (int*)len, lines);
out.SetSize(outF.Width, outF.Height);
::ReleaseDC(NULL, hdc);
}
void RenderContext::CalcStringRectWithFlags(const std::wstring& text, const Font& font, const Rect& rect, int flags, Rect& out, size_t* len, int* lines)
{
HDC hdc = GetDC(NULL);
Gdiplus::Graphics graphics(hdc);
Gdiplus::Font gdi_font(hdc, font.ToHFONT());
Gdiplus::StringFormat format;
Gdiplus::RectF rectF(rect.x(), rect.y(), rect.width(), rect.height());
Gdiplus::RectF outF;
GetStringFormat(format, flags);
graphics.SetTextRenderingHint(Gdiplus::TextRenderingHintAntiAlias);
graphics.MeasureString(text.c_str(), text.size(), &gdi_font, rectF, &format, &outF, (int*)len, lines);
out.SetRect(outF.X, outF.Y, outF.Width, outF.Height);
::ReleaseDC(NULL, hdc);
}
void KDoor::drawCurImageEffect(QPainter &painter,const QImage &curImage, const float& frame)
{
float switchAreaWidth = curImage.width();
float switchAreaHeight = curImage.height();
float offsetWide = (switchAreaWidth * 0.6) / 2;
float offsetHeight = (switchAreaHeight * 0.6) / 2;
//计算当前image增长的大小
float m_fIncreasedWidth = offsetWide * frame;
float m_fIncreasedHeight = offsetHeight * frame;
QImage image = curImage.scaled(switchAreaWidth * 0.4 + m_fIncreasedWidth * 2,
switchAreaHeight * 0.4 + m_fIncreasedHeight * 2);
QPointF widgetCenter = curImage.rect().center();
painter.save();
QRectF rectF(widgetCenter.x() - image.width() / 2,
widgetCenter.y() - image.height() / 2, image.width(), image.height());
painter.drawImage(rectF,image);
painter.restore();
}
void LineGraphWidget::paintEvent(QPaintEvent *)
{
qDebug() << "akb";
int i;
int a,b,c,d;
Counter = 0;
QPixmap pix(widgetX,widgetY);
QPainter painter(&pix);
pix.fill(Qt::white);
QPen pen;
pen.setBrush(Qt::black);
pen.setStyle(Qt::DotLine);
painter.setPen(pen);
QPen pen1;
pen1.setBrush(Qt::black);
painter.setRenderHint(QPainter::Antialiasing);
for(i = 0;i < sumUnitX+1; ++i)
{
a = basePoint.x + i*singleUnitX;
b = basePoint.y;
c = a;
d = yAxisEndPoint.y;
painter.drawLine(a,b,c,d);
}
for(i = 0; i < sumUnitY+1; ++i)
{
a = basePoint.x;
b = basePoint.y - singleUnitY*i;
c = xAxisEndPoint.x;
d = b;
painter.drawLine(a,b,c,d);
}
painter.setPen(pen1);
for (i = 0;i <sumUnitY+1; i++)
{
QRectF rectF(5,basePoint.y - singleUnitY*i-10,singleUnitX+5,singleUnitY);//长宽与位数的关系 2015/06/05
double temp = (sumUnitY > 0) ? ((static_cast<double>(rangeMax-rangeMin))/static_cast<double>(sumUnitY))*static_cast<double>(i) : 0;
painter.drawText(rectF,Qt::AlignLeft,QString::number(static_cast<int>(temp)));
}
for (i = 0;i < sumUnitX+1;++i)
{
QRectF rectF(singleUnitX*i+35,basePoint.y+10,singleUnitX,singleUnitY);
painter.drawText(rectF,Qt::AlignLeft,QString::number((i+this->second)%60));
}
for(int i = 0; i<yList.size()-1;i++)
{
painter.drawLine(basePoint.x+i*singleUnitX,
yList.at(i),
basePoint.x + (i + 1)*singleUnitX,
yList.at(i+1)
);
}
if(yList.size() > sumUnitX)
{
yList.removeFirst();
}
int temp = basePoint.y - qrand() % 150;
yList.append(temp);
painter.end();
painter.begin(this);
painter.drawPixmap(0,0,pix);
painter.end();
Counter = 0;
if(this->second%60==0 && this->second > 60 )
{
this->second = 1;
}
else
{
this->second +=1;
}
}
void CButtonCx::DrawString(CDC *drawDC, LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// テキストを得る。
CString title;
GetWindowText(title);
// テキストが空の場合および GDI+ Font/Brush が設定されていない場合何もしない。
if (title.IsEmpty() || m_GpFont == NULL || m_GpBrush == NULL)
{
return;
}
// 透過モードにする。
drawDC->SetBkMode(TRANSPARENT);
// テキストの描画位置
CRect rect = (CRect) (lpDrawItemStruct->rcItem); // クライアント四角形の取得
// マージン設定
rect.top += m_Margin.top;
rect.left += m_Margin.left;
rect.bottom -= m_Margin.bottom;
rect.right -= m_Margin.right;
CArray<CString, CString> arr;
arr.RemoveAll();
CString resToken;
int curPos = 0;
resToken = title.Tokenize(L"\r\n", curPos);
while (resToken != L"")
{
arr.Add(resToken);
resToken = title.Tokenize(L"\r\n", curPos);
}
if (m_FontType == FT_GDI_PLUS || m_FontType == FT_AUTO) // GDI+
{
Gdiplus::Graphics g(drawDC->m_hDC);
const Gdiplus::PointF pointF(0.0, 0.0);
Gdiplus::RectF extentF;
for (int i = 0; i < arr.GetCount(); i++)
{
CRect r;
r.top = (LONG) (((double) rect.Height()) / arr.GetCount() * i);
r.bottom = (LONG) (((double) rect.Height()) / arr.GetCount() * (i + 1));
r.left = rect.left;
r.right = rect.right;
g.MeasureString(arr.GetAt(i), arr.GetAt(i).GetLength() + 1, m_GpFont, pointF, &extentF); // "+ 1" for workdaround
REAL y;
FontFamily ff;
m_GpFont->GetFamily(&ff);
REAL ascent = (REAL) ff.GetCellAscent(FontStyleRegular);
REAL lineSpacing = (REAL) ff.GetLineSpacing(FontStyleRegular);
y = r.CenterPoint().y - (extentF.Height * ascent / lineSpacing) / 2;
Gdiplus::PointF pt(rect.CenterPoint().x - (extentF.Width / 2), y);
Gdiplus::RectF rectF(pt.X, pt.Y, (REAL) extentF.Width, (REAL) extentF.Height);
g.SetTextRenderingHint(TextRenderingHintAntiAlias);
g.DrawString(arr.GetAt(i), -1, m_GpFont, rectF, m_GpStringformat, m_GpBrush);
}
}
else // GDI
{
for (int i = 0; i < arr.GetCount(); i++)
{
CRect r;
r.top = rect.top + (LONG) (((double) rect.Height()) / arr.GetCount() * i);
r.bottom = rect.top + (LONG) (((double) rect.Height()) / arr.GetCount() * (i + 1));
r.left = rect.left;
r.right = rect.right;
CRect rectI;
CSize extent;
HGDIOBJ oldFont = drawDC->SelectObject(m_Font);
GetTextExtentPoint32(drawDC->m_hDC, arr.GetAt(i), arr.GetAt(i).GetLength() + 1, &extent);
rectI.top = r.top + (r.Height() - extent.cy) / 2;
rectI.bottom = rectI.top + extent.cy;
rectI.left = r.left;
rectI.right = r.right;
DrawText(drawDC->m_hDC, arr.GetAt(i), arr.GetAt(i).GetLength(), r, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
drawDC->SelectObject(oldFont);
}
}
// いつか DirectWrite 描画に対応したいものである。。。
}
