|  | 
| enum | PathDrawMode { kPathFilled
, kPathFilledEvenOdd
, kPathStroked
 } | 
|  | 
| using | LinePair = VSTGUI::LinePair | 
|  | 
| using | LineList = VSTGUI::LineList | 
|  | 
| using | PointList = VSTGUI::PointList | 
|  | 
| void | setLineStyle (const CLineStyle &style) | 
|  | set the current line style  More... 
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|  | 
| const CLineStyle & | getLineStyle () const | 
|  | get the current line style  More... 
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|  | 
| void | setLineWidth (CCoord width) | 
|  | set the current line width  More... 
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|  | 
| CCoord | getLineWidth () const | 
|  | get the current line width  More... 
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|  | 
| void | setDrawMode (CDrawMode mode) | 
|  | set the current draw mode, see CDrawMode  More... 
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|  | 
| CDrawMode | getDrawMode () const | 
|  | get the current draw mode, see CDrawMode  More... 
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|  | 
| void | setClipRect (const CRect &clip) | 
|  | set the current clip  More... 
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|  | 
| CRect & | getClipRect (CRect &clip) const | 
|  | get the current clip  More... 
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|  | 
| void | resetClipRect () | 
|  | reset the clip to the default state  More... 
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|  | 
| void | setFillColor (const CColor &color) | 
|  | set current fill color  More... 
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|  | 
| CColor | getFillColor () const | 
|  | get current fill color  More... 
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|  | 
| void | setFrameColor (const CColor &color) | 
|  | set current stroke color  More... 
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|  | 
| CColor | getFrameColor () const | 
|  | get current stroke color  More... 
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|  | 
| void | setFontColor (const CColor &color) | 
|  | set current font color  More... 
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|  | 
| CColor | getFontColor () const | 
|  | get current font color  More... 
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|  | 
| void | setFont (const CFontRef font, const CCoord &size=0, const int32_t &style=-1) | 
|  | set current font  More... 
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|  | 
| const CFontRef | getFont () const | 
|  | get current font  More... 
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|  | 
| CCoord | getStringWidth (UTF8StringPtr pStr) | 
|  | get the width of an UTF-8 encoded string  More... 
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|  | 
| void | drawString (UTF8StringPtr string, const CRect &_rect, const CHoriTxtAlign hAlign=kCenterText, bool antialias=true) | 
|  | draw an UTF-8 encoded string  More... 
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|  | 
| void | drawString (UTF8StringPtr string, const CPoint &_point, bool antialias=true) | 
|  | draw an UTF-8 encoded string  More... 
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|  | 
| CCoord | getStringWidth (IPlatformString *pStr) | 
|  | get the width of a platform string  More... 
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|  | 
| void | drawString (IPlatformString *string, const CRect &_rect, const CHoriTxtAlign hAlign=kCenterText, bool antialias=true) | 
|  | draw a platform string  More... 
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|  | 
| void | drawString (IPlatformString *string, const CPoint &_point, bool antialias=true) | 
|  | draw a platform string  More... 
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|  | 
| void | setGlobalAlpha (float newAlpha) | 
|  | sets the global alpha value[0..1]  More... 
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|  | 
| float | getGlobalAlpha () const | 
|  | get current global alpha value  More... 
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|  | 
| void | saveGlobalState () | 
|  | 
| void | restoreGlobalState () | 
|  | 
| const CGraphicsTransform & | getCurrentTransform () const | 
|  | 
| const CRect & | getAbsoluteClipRect () const | 
|  | 
| double | getScaleFactor () const | 
|  | returns the backend scale factor.  More... 
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|  | 
| CCoord | getHairlineSize () const | 
|  | returns the current line size which corresponds to one pixel on screen.  More... 
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|  | 
| CGraphicsPath * | createGraphicsPath () | 
|  | create a graphics path object, you need to forget it after usage  More... 
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|  | 
| CGraphicsPath * | createTextPath (const CFontRef font, UTF8StringPtr text) | 
|  | create a graphics path from a text  More... 
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|  | 
| CGraphicsPath * | createRoundRectGraphicsPath (const CRect &size, CCoord radius) | 
|  | create a rect with round corners as graphics path, you need to forget it after usage  More... 
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|  | 
| void | drawGraphicsPath (CGraphicsPath *path, PathDrawMode mode=kPathFilled, CGraphicsTransform *transformation=nullptr) | 
|  | 
| void | fillLinearGradient (CGraphicsPath *path, const CGradient &gradient, const CPoint &startPoint, const CPoint &endPoint, bool evenOdd=false, CGraphicsTransform *transformation=nullptr) | 
|  | 
| void | fillRadialGradient (CGraphicsPath *path, const CGradient &gradient, const CPoint ¢er, CCoord radius, const CPoint &originOffset=CPoint(0, 0), bool evenOdd=false, CGraphicsTransform *transformation=nullptr) | 
|  | 
| void | beginDraw () | 
|  | 
| void | endDraw () | 
|  | 
| const CRect & | getSurfaceRect () const | 
|  | 
|  | CDrawContext (const PlatformGraphicsDeviceContextPtr device, const CRect &surfaceRect, double scaleFactor) | 
|  | 
|  | ~CDrawContext () noexcept override | 
|  | 
| const PlatformGraphicsDeviceContextPtr & | getPlatformDeviceContext () const | 
|  | 
| void | drawLine (const CPoint &start, const CPoint &end) | 
|  | 
| void | drawLine (const LinePair &line) | 
|  | draw a line  More... 
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|  | 
| void | drawLines (const LineList &lines) | 
|  | draw multiple lines at once  More... 
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|  | 
| void | drawPolygon (const PointList &polygonPointList, const CDrawStyle drawStyle=kDrawStroked) | 
|  | draw a polygon  More... 
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|  | 
| void | drawRect (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked) | 
|  | draw a rect  More... 
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|  | 
| void | drawArc (const CRect &rect, const float startAngle1, const float endAngle2, const CDrawStyle drawStyle=kDrawStroked) | 
|  | draw an arc, angles are in degree  More... 
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|  | 
| void | drawEllipse (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked) | 
|  | draw an ellipse  More... 
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|  | 
| void | drawPoint (const CPoint &point, const CColor &color) | 
|  | draw a point  More... 
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|  | 
| void | drawBitmap (CBitmap *bitmap, const CRect &dest, const CPoint &offset=CPoint(0, 0), float alpha=1.f) | 
|  | don't call directly, please use CBitmap::draw instead  More... 
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|  | 
| void | drawBitmapNinePartTiled (CBitmap *bitmap, const CRect &dest, const CNinePartTiledDescription &desc, float alpha=1.f) | 
|  | 
| void | fillRectWithBitmap (CBitmap *bitmap, const CRect &srcRect, const CRect &dstRect, float alpha) | 
|  | 
| void | clearRect (const CRect &rect) | 
|  | clears the rect (makes r = 0, g = 0, b = 0, a = 0)  More... 
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|  | 
| void | setBitmapInterpolationQuality (BitmapInterpolationQuality quality) | 
|  | set the current bitmap interpolation quality  More... 
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|  | 
| BitmapInterpolationQuality | getBitmapInterpolationQuality () const | 
|  | get the current bitmap interpolation quality  More... 
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|  | 
|  | ReferenceCounted ()=default | 
|  | 
| virtual | ~ReferenceCounted () noexcept=default | 
|  | 
|  | ReferenceCounted (const ReferenceCounted &) | 
|  | 
| ReferenceCounted & | operator= (const ReferenceCounted &) | 
|  | 
| void | forget () override | 
|  | decrease refcount and delete object if refcount == 0  More... 
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|  | 
| void | remember () override | 
|  | increase refcount  More... 
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|  | 
| virtual int32_t | getNbReference () const | 
|  | get refcount  More... 
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|  | 
| virtual void | forget ()=0 | 
|  | decrease refcount and delete object if refcount == 0  More... 
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|  | 
| virtual void | remember ()=0 | 
|  | increase refcount  More... 
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|  | 
|  | CDrawContext ()=delete | 
|  | 
|  | CDrawContext (const CRect &surfaceRect) | 
|  | 
| void | init () | 
|  | 
| void | pushTransform (const CGraphicsTransform &transformation) | 
|  | 
| void | popTransform () | 
|  | 
| const UTF8String & | getDrawString (UTF8StringPtr string) | 
|  | 
| void | clearDrawString () | 
|  | 
A draw context using a bitmap as it's back buffer. 
There are two usage scenarios : 
Drawing into a bitmap and then push the contents into another draw context
{
    offscreen->beginDraw ();
    
    
    
    offscreen->endDraw ();
    offscreen->copyFrom (otherContext, destRect);
}
static SharedPointer< COffscreenContext > create(const CPoint &size, double scaleFactor=1.)
Definition: coffscreencontext.cpp:51
 
Drawing static content into a bitmap and reuse the bitmap for drawing
if (cachedBitmap == 0)
{
    {
        offscreen->beginDraw ();
        
        
        
        offscreen->endDraw ();
        cachedBitmap = offscreen->getBitmap ();
        if (cachedBitmap)
            cachedBitmap->remember ();
    }
}
if (cachedBitmap)
{
    
}