#include <NanoVG.hpp>

Inheritance diagram for NanoBaseWidget< BaseWidget >:

Public Member Functions
	NanoBaseWidget (Widget *parentWidget, int flags=CREATE_ANTIALIAS)
	NanoBaseWidget (NanoBaseWidget< SubWidget > *parentWidget)
	NanoBaseWidget (NanoBaseWidget< TopLevelWidget > *parentWidget)
	NanoBaseWidget (Window &windowToMapTo, int flags=CREATE_ANTIALIAS)
	NanoBaseWidget (Application &app, int flags=CREATE_ANTIALIAS)
	NanoBaseWidget (Application &app, Window &transientParentWindow, int flags=CREATE_ANTIALIAS)
	~NanoBaseWidget () override
bool	getClipChildren () const noexcept
void	setClipChildren (bool clipChildren=true) noexcept
Public Member Functions inherited from NanoVG
	NanoVG (int flags=CREATE_ANTIALIAS)
	NanoVG (NVGcontext *context)
virtual	~NanoVG ()
NVGcontext *	getContext () const noexcept
void	beginFrame (const uint width, const uint height, const float scaleFactor=1.0f)
void	beginFrame (Widget *const widget)
void	cancelFrame ()
void	endFrame ()
void	save ()
void	restore ()
void	reset ()
void	strokeColor (const Color &color)
void	strokeColor (const int red, const int green, const int blue, const int alpha=255)
void	strokeColor (const float red, const float green, const float blue, const float alpha=1.0f)
void	strokePaint (const Paint &paint)
void	fillColor (const Color &color)
void	fillColor (const int red, const int green, const int blue, const int alpha=255)
void	fillColor (const float red, const float green, const float blue, const float alpha=1.0f)
void	fillPaint (const Paint &paint)
void	miterLimit (float limit)
void	strokeWidth (float size)
void	lineCap (LineCap cap=BUTT)
void	lineJoin (LineCap join=MITER)
void	globalAlpha (float alpha)
void	globalTint (Color tint)
void	resetTransform ()
void	transform (float a, float b, float c, float d, float e, float f)
void	translate (float x, float y)
void	rotate (float angle)
void	skewX (float angle)
void	skewY (float angle)
void	scale (float x, float y)
void	currentTransform (float xform[6])
NanoImage::Handle	createImageFromFile (const char *filename, ImageFlags imageFlags)
NanoImage::Handle	createImageFromFile (const char *filename, int imageFlags)
NanoImage::Handle	createImageFromMemory (const uchar *data, uint dataSize, ImageFlags imageFlags)
NanoImage::Handle	createImageFromMemory (const uchar *data, uint dataSize, int imageFlags)
NanoImage::Handle	createImageFromRawMemory (uint w, uint h, const uchar *data, ImageFlags imageFlags, ImageFormat format)
NanoImage::Handle	createImageFromRawMemory (uint w, uint h, const uchar *data, int imageFlags, ImageFormat format)
NanoImage::Handle	createImageFromRGBA (uint w, uint h, const uchar *data, ImageFlags imageFlags)
NanoImage::Handle	createImageFromRGBA (uint w, uint h, const uchar *data, int imageFlags)
NanoImage::Handle	createImageFromTextureHandle (GLuint textureId, uint w, uint h, ImageFlags imageFlags, bool deleteTexture=false)
NanoImage::Handle	createImageFromTextureHandle (GLuint textureId, uint w, uint h, int imageFlags, bool deleteTexture=false)
Paint	linearGradient (float sx, float sy, float ex, float ey, const Color &icol, const Color &ocol)
Paint	boxGradient (float x, float y, float w, float h, float r, float f, const Color &icol, const Color &ocol)
Paint	radialGradient (float cx, float cy, float inr, float outr, const Color &icol, const Color &ocol)
Paint	imagePattern (float ox, float oy, float ex, float ey, float angle, const NanoImage &image, float alpha)
void	scissor (float x, float y, float w, float h)
void	intersectScissor (float x, float y, float w, float h)
void	resetScissor ()
void	beginPath ()
void	moveTo (float x, float y)
void	lineTo (float x, float y)
void	bezierTo (float c1x, float c1y, float c2x, float c2y, float x, float y)
void	quadTo (float cx, float cy, float x, float y)
void	arcTo (float x1, float y1, float x2, float y2, float radius)
void	closePath ()
void	pathWinding (Winding dir)
void	arc (float cx, float cy, float r, float a0, float a1, Winding dir)
void	rect (float x, float y, float w, float h)
void	roundedRect (float x, float y, float w, float h, float r)
void	ellipse (float cx, float cy, float rx, float ry)
void	circle (float cx, float cy, float r)
void	fill ()
void	stroke ()
FontId	createFontFromFile (const char name, const char filename)
FontId	createFontFromMemory (const char name, const uchar data, uint dataSize, bool freeData)
FontId	findFont (const char *name)
void	fontSize (float size)
void	fontBlur (float blur)
void	textLetterSpacing (float spacing)
void	textLineHeight (float lineHeight)
void	textAlign (Align align)
void	textAlign (int align)
void	fontFaceId (FontId font)
void	fontFace (const char *font)
float	text (float x, float y, const char string, const char end)
void	textBox (float x, float y, float breakRowWidth, const char string, const char end=nullptr)
float	textBounds (float x, float y, const char string, const char end, Rectangle< float > &bounds)
void	textBoxBounds (float x, float y, float breakRowWidth, const char string, const char end, float bounds[4])
int	textGlyphPositions (float x, float y, const char string, const char end, GlyphPosition &positions, int maxPositions)
void	textMetrics (float ascender, float descender, float *lineh)
int	textBreakLines (const char string, const char end, float breakRowWidth, TextRow &rows, int maxRows)
virtual bool	loadSharedResources ()

Protected Member Functions
virtual void	onNanoDisplay ()=0

Friends
class	NanoBaseWidget< TopLevelWidget >
class	NanoBaseWidget< StandaloneWindow >

Additional Inherited Members
Public Types inherited from NanoVG
enum	CreateFlags { CREATE_ANTIALIAS = 1 << 0 , CREATE_STENCIL_STROKES = 1 << 1 , CREATE_DEBUG = 1 << 2 }
enum	ImageFlags { IMAGE_GENERATE_MIPMAPS = 1 << 0 , IMAGE_REPEAT_X = 1 << 1 , IMAGE_REPEAT_Y = 1 << 2 , IMAGE_FLIP_Y = 1 << 3 , IMAGE_PREMULTIPLIED = 1 << 4 }
enum	Align { ALIGN_LEFT = 1 << 0 , ALIGN_CENTER = 1 << 1 , ALIGN_RIGHT = 1 << 2 , ALIGN_TOP = 1 << 3 , ALIGN_MIDDLE = 1 << 4 , ALIGN_BOTTOM = 1 << 5 , ALIGN_BASELINE = 1 << 6 }
enum	LineCap { BUTT , ROUND , SQUARE , BEVEL , MITER }
enum	Solidity { SOLID = 1 , HOLE = 2 }
enum	Winding { CCW = 1 , CW = 2 }
typedef int	FontId
Static Public Member Functions inherited from NanoVG
static void	transformIdentity (float dst[6])
static void	transformTranslate (float dst[6], float tx, float ty)
static void	transformScale (float dst[6], float sx, float sy)
static void	transformRotate (float dst[6], float a)
static void	transformSkewX (float dst[6], float a)
static void	transformSkewY (float dst[6], float a)
static void	transformMultiply (float dst[6], const float src[6])
static void	transformPremultiply (float dst[6], const float src[6])
static int	transformInverse (float dst[6], const float src[6])
static void	transformPoint (float &dstx, float &dsty, const float xform[6], float srcx, float srcy)
static float	degToRad (float deg)
static float	radToDeg (float rad)

Detailed Description

template<class BaseWidget>
class NanoBaseWidget< BaseWidget >

NanoVG Widget class.

This class implements the NanoVG drawing API inside a DGL Widget. The drawing function onDisplay() is implemented internally but a new onNanoDisplay() needs to be overridden instead.

Constructor & Destructor Documentation

◆ NanoBaseWidget() [1/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget	(	Widget *	parentWidget,
		int	flags = CREATE_ANTIALIAS )

explicit

Constructor for a NanoSubWidget.

See also: CreateFlags

◆ NanoBaseWidget() [2/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget ( NanoBaseWidget< SubWidget > * parentWidget )

explicit

Constructor for a NanoSubWidget reusing a parent subwidget nanovg context.

◆ NanoBaseWidget() [3/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget ( NanoBaseWidget< TopLevelWidget > * parentWidget )

explicit

Constructor for a NanoSubWidget reusing a parent top-level-widget nanovg context.

◆ NanoBaseWidget() [4/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget	(	Window &	windowToMapTo,
		int	flags = CREATE_ANTIALIAS )

explicit

Constructor for a NanoTopLevelWidget.

See also: CreateFlags

◆ NanoBaseWidget() [5/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget	(	Application &	app,
		int	flags = CREATE_ANTIALIAS )

explicit

Constructor for a NanoStandaloneWindow without transient parent window.

See also: CreateFlags

◆ NanoBaseWidget() [6/6]

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::NanoBaseWidget	(	Application &	app,
		Window &	transientParentWindow,
		int	flags = CREATE_ANTIALIAS )

explicit

Constructor for a NanoStandaloneWindow with transient parent window.

See also: CreateFlags

◆ ~NanoBaseWidget()

template<class BaseWidget>

NanoBaseWidget< BaseWidget >::~NanoBaseWidget ( )

override

Destructor. Deletes the NanoVG context, if this widget has its own, with the window graphics context current.

Member Function Documentation

◆ getClipChildren()

template<class BaseWidget>

bool NanoBaseWidget< BaseWidget >::getClipChildren ( ) const

noexcept

Whether children sharing this widget's NanoVG context are clipped to the scissor it sets.

See also: setClipChildren

◆ setClipChildren()

template<class BaseWidget>

void NanoBaseWidget< BaseWidget >::setClipChildren ( bool clipChildren = true )

noexcept

Clip the children that share this widget's NanoVG context to the scissor it sets.

A NanoSubWidget created with a NanoSubWidget or NanoTopLevelWidget parent draws into its parent's context. Its onNanoDisplay() runs inside a save()/restore() pair, and by default its children are drawn after that restore(), so a scissor set in onNanoDisplay() does not reach them: they start from the state this widget was given.

With this enabled, the scissor this widget leaves at the end of onNanoDisplay() is carried into its children (the rest of the state still starts from what this widget was given), which lets a scroll area, panel or tab page keep its children inside its own bounds. Children that must draw outside it, such as popups or tooltips, should then reset the scissor themselves or not be children of this widget.

Disabled by default. It has no effect on a widget with its own NanoVG context, whose children already draw in the same state as its onNanoDisplay() left behind.

◆ onNanoDisplay()

template<class BaseWidget>

virtual void NanoBaseWidget< BaseWidget >::onNanoDisplay ( )

protectedpure virtual

New virtual onDisplay function.

See also: onDisplay

The documentation for this class was generated from the following file:

dgl/NanoVG.hpp

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NanoBaseWidget() [1/6]

◆ NanoBaseWidget() [2/6]

◆ NanoBaseWidget() [3/6]

◆ NanoBaseWidget() [4/6]

◆ NanoBaseWidget() [5/6]

◆ NanoBaseWidget() [6/6]

◆ ~NanoBaseWidget()

Member Function Documentation

◆ getClipChildren()

◆ setClipChildren()

◆ onNanoDisplay()