|
| 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...
|
| |
| const CLineStyle & | getLineStyle () const |
| | get the current line style More...
|
| |
| void | setLineWidth (CCoord width) |
| | set the current line width More...
|
| |
| CCoord | getLineWidth () const |
| | get the current line width More...
|
| |
| void | setDrawMode (CDrawMode mode) |
| | set the current draw mode, see CDrawMode More...
|
| |
| CDrawMode | getDrawMode () const |
| | get the current draw mode, see CDrawMode More...
|
| |
| void | setClipRect (const CRect &clip) |
| | set the current clip More...
|
| |
| CRect & | getClipRect (CRect &clip) const |
| | get the current clip More...
|
| |
| void | resetClipRect () |
| | reset the clip to the default state More...
|
| |
| void | setFillColor (const CColor &color) |
| | set current fill color More...
|
| |
| CColor | getFillColor () const |
| | get current fill color More...
|
| |
| void | setFrameColor (const CColor &color) |
| | set current stroke color More...
|
| |
| CColor | getFrameColor () const |
| | get current stroke color More...
|
| |
| void | setFontColor (const CColor &color) |
| | set current font color More...
|
| |
| CColor | getFontColor () const |
| | get current font color More...
|
| |
| void | setFont (const CFontRef font, const CCoord &size=0, const int32_t &style=-1) |
| | set current font More...
|
| |
| const CFontRef | getFont () const |
| | get current font More...
|
| |
| CCoord | getStringWidth (UTF8StringPtr pStr) |
| | get the width of an UTF-8 encoded string More...
|
| |
| void | drawString (UTF8StringPtr string, const CRect &_rect, const CHoriTxtAlign hAlign=kCenterText, bool antialias=true) |
| | draw an UTF-8 encoded string More...
|
| |
| void | drawString (UTF8StringPtr string, const CPoint &_point, bool antialias=true) |
| | draw an UTF-8 encoded string More...
|
| |
| CCoord | getStringWidth (IPlatformString *pStr) |
| | get the width of a platform string More...
|
| |
| void | drawString (IPlatformString *string, const CRect &_rect, const CHoriTxtAlign hAlign=kCenterText, bool antialias=true) |
| | draw a platform string More...
|
| |
| void | drawString (IPlatformString *string, const CPoint &_point, bool antialias=true) |
| | draw a platform string More...
|
| |
| void | setGlobalAlpha (float newAlpha) |
| | sets the global alpha value[0..1] More...
|
| |
| float | getGlobalAlpha () const |
| | get current global alpha value More...
|
| |
| void | saveGlobalState () |
| |
| void | restoreGlobalState () |
| |
| const CGraphicsTransform & | getCurrentTransform () const |
| |
| const CRect & | getAbsoluteClipRect () const |
| |
| double | getScaleFactor () const |
| | returns the backend scale factor. More...
|
| |
| CCoord | getHairlineSize () const |
| | returns the current line size which corresponds to one pixel on screen. More...
|
| |
| CGraphicsPath * | createGraphicsPath () |
| | create a graphics path object, you need to forget it after usage More...
|
| |
| CGraphicsPath * | createTextPath (const CFontRef font, UTF8StringPtr text) |
| | create a graphics path from a text More...
|
| |
| CGraphicsPath * | createRoundRectGraphicsPath (const CRect &size, CCoord radius) |
| | create a rect with round corners as graphics path, you need to forget it after usage More...
|
| |
| 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...
|
| |
| void | drawLines (const LineList &lines) |
| | draw multiple lines at once More...
|
| |
| void | drawPolygon (const PointList &polygonPointList, const CDrawStyle drawStyle=kDrawStroked) |
| | draw a polygon More...
|
| |
| void | drawRect (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked) |
| | draw a rect More...
|
| |
| void | drawArc (const CRect &rect, const float startAngle1, const float endAngle2, const CDrawStyle drawStyle=kDrawStroked) |
| | draw an arc, angles are in degree More...
|
| |
| void | drawEllipse (const CRect &rect, const CDrawStyle drawStyle=kDrawStroked) |
| | draw an ellipse More...
|
| |
| void | drawPoint (const CPoint &point, const CColor &color) |
| | draw a point More...
|
| |
| 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...
|
| |
| 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...
|
| |
| void | setBitmapInterpolationQuality (BitmapInterpolationQuality quality) |
| | set the current bitmap interpolation quality More...
|
| |
| BitmapInterpolationQuality | getBitmapInterpolationQuality () const |
| | get the current bitmap interpolation quality More...
|
| |
| | 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...
|
| |
| void | remember () override |
| | increase refcount More...
|
| |
| virtual int32_t | getNbReference () const |
| | get refcount More...
|
| |
| virtual void | forget ()=0 |
| | decrease refcount and delete object if refcount == 0 More...
|
| |
| virtual void | remember ()=0 |
| | increase refcount More...
|
| |
| | 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)
{
}