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CBitmap * | getBitmap () const |
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void | copyFrom (CDrawContext *pContext, CRect destRect, CPoint srcOffset=CPoint(0, 0)) |
| copy from offscreen to pContext More...
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CCoord | getWidth () const |
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CCoord | getHeight () const |
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virtual double | getScaleFactor () const |
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virtual void | beginDraw () |
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virtual void | endDraw () |
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virtual bool | isTypeOf (IdStringPtr s) const |
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virtual CBaseObject * | newCopy () const |
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virtual 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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virtual 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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virtual 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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virtual 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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virtual void | resetClipRect () |
| reset the clip to the default state More...
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virtual 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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virtual 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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virtual 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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virtual 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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virtual 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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virtual void | saveGlobalState () |
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virtual void | restoreGlobalState () |
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const CGraphicsTransform & | getCurrentTransform () const |
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const CRect & | getAbsoluteClipRect () const |
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void | moveTo (const CPoint &point) |
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void | lineTo (const CPoint &point) |
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void | getLoc (CPoint &where) const |
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void | drawLines (const CPoint *points, const int32_t &numberOfLines) |
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void | drawPolygon (const CPoint *pPoints, int32_t numberOfPoints, const CDrawStyle drawStyle=kDrawStroked) |
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void | drawLine (const CPoint &start, const CPoint &end) |
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virtual void | drawLine (const LinePair &line)=0 |
| draw a line More...
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virtual void | drawLines (const LineList &lines)=0 |
| draw multiple lines at once More...
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virtual void | drawPolygon (const PointList &polygonPointList, const CDrawStyle drawStyle=kDrawStroked)=0 |
| draw a polygon More...
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virtual void | drawRect (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked)=0 |
| draw a rect More...
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virtual void | drawArc (const CRect &rect, const float startAngle1, const float endAngle2, const CDrawStyle drawStyle=kDrawStroked)=0 |
| draw an arc, angles are in degree More...
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virtual void | drawEllipse (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked)=0 |
| draw an ellipse More...
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virtual void | drawPoint (const CPoint &point, const CColor &color)=0 |
| draw a point More...
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virtual void | drawBitmap (CBitmap *bitmap, const CRect &dest, const CPoint &offset=CPoint(0, 0), float alpha=1.f)=0 |
| don't call directly, please use CBitmap::draw instead More...
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virtual void | drawBitmapNinePartTiled (CBitmap *bitmap, const CRect &dest, const CNinePartTiledDescription &desc, float alpha=1.f) |
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virtual void | fillRectWithBitmap (CBitmap *bitmap, const CRect &srcRect, const CRect &dstRect, float alpha) |
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virtual void | clearRect (const CRect &rect)=0 |
| clears the rect (makes r = 0, g = 0, b = 0, a = 0) More...
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virtual CGraphicsPath * | createGraphicsPath ()=0 |
| create a graphics path object, you need to forget it after usage More...
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virtual CGraphicsPath * | createTextPath (const CFontRef font, UTF8StringPtr text)=0 |
| 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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virtual void | drawGraphicsPath (CGraphicsPath *path, PathDrawMode mode=kPathFilled, CGraphicsTransform *transformation=0)=0 |
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virtual void | fillLinearGradient (CGraphicsPath *path, const CGradient &gradient, const CPoint &startPoint, const CPoint &endPoint, bool evenOdd=false, CGraphicsTransform *transformation=0)=0 |
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virtual void | fillRadialGradient (CGraphicsPath *path, const CGradient &gradient, const CPoint ¢er, CCoord radius, const CPoint &originOffset=CPoint(0, 0), bool evenOdd=false, CGraphicsTransform *transformation=0)=0 |
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| CBaseObject () |
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virtual | ~CBaseObject () |
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virtual void | beforeDelete () |
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virtual void | forget () |
| decrease refcount and delete object if refcount == 0 More...
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virtual void | remember () |
| increase refcount More...
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virtual int32_t | getNbReference () const |
| get refcount More...
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virtual CMessageResult | notify (CBaseObject *sender, IdStringPtr message) |
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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
if (offscreen)
{
offscreen->beginDraw ();
offscreen->endDraw ();
offscreen->copyFrom (otherContext, destRect);
offscreen->forget ();
}
Drawing static content into a bitmap and reuse the bitmap for drawing
if (cachedBitmap == 0)
{
if (offscreen)
{
offscreen->beginDraw ();
offscreen->endDraw ();
cachedBitmap = offscreen->getBitmap ();
if (cachedBitmap)
cachedBitmap->remember ();
offscreen->forget ();
}
}
if (cachedBitmap)
{
}