cairo-dock-draw.h File Reference

Macros
#define	cairo_dock_erase_cairo_context(pCairoContext)

Functions
cairo_t *	cairo_dock_create_drawing_context_generic (GldiContainer *pContainer)
	CONTEXT ///. More...
cairo_t *	cairo_dock_create_drawing_context_on_container (GldiContainer *pContainer)
cairo_t *	cairo_dock_create_drawing_context_on_area (GldiContainer *pContainer, GdkRectangle *pArea, double *fBgColor)
void	cairo_dock_draw_rounded_rectangle (cairo_t *pCairoContext, double fRadius, double fLineWidth, double fFrameWidth, double fFrameHeight)
void	cairo_dock_draw_icon_cairo (Icon *icon, CairoDock *pDock, cairo_t *pCairoContext)
void	cairo_dock_render_one_icon (Icon *icon, CairoDock *pDock, cairo_t *pCairoContext, double fDockMagnitude, gboolean bUseText)
void	cairo_dock_draw_string (cairo_t *pCairoContext, CairoDock *pDock, double fStringLineWidth, gboolean bIsLoop, gboolean bForceConstantSeparator)

Detailed Description

This class provides some useful functions to draw with libcairo.

Macro Definition Documentation

#define cairo_dock_erase_cairo_context

(

pCairoContext

)

Erase a drawing context, making it fully transparent. You don't need to erase a newly created context.

Parameters

pCairoContext

a drawing context.

Function Documentation

cairo_t* cairo_dock_create_drawing_context_generic

(

GldiContainer *

pContainer

)

CONTEXT ///.

Create a generic drawing context, to be used as a source context (for instance, for creating a surface).

Parameters

pContainer

a container.

Returns

the context on which to draw. Is never NULL, test it with cairo_status() before use it, and destroy it with cairo_destroy() when you're done with it.

cairo_t* cairo_dock_create_drawing_context_on_container

(

GldiContainer *

pContainer

)

Create a drawing context to draw on a container. It handles fake transparency.

Parameters

pContainer

the container on which you want to draw.

Returns

the newly allocated context, to be destroyed with 'cairo_destroy'.

cairo_t* cairo_dock_create_drawing_context_on_area	(	GldiContainer *	pContainer,
		GdkRectangle *	pArea,
		double *	fBgColor
	)

Create a drawing context to draw on a part of a container. It handles fake transparency.

Parameters

pContainer	the container on which you want to draw
pArea	part of the container to draw.
fBgColor	background color (rgba) to fill the area with, or NULL to let it transparent.

Returns

the newly allocated context, with a clip corresponding to the area, to be destroyed with 'cairo_destroy'.

void cairo_dock_draw_rounded_rectangle	(	cairo_t *	pCairoContext,
		double	fRadius,
		double	fLineWidth,
		double	fFrameWidth,
		double	fFrameHeight
	)

Compute the path of a rectangle with rounded corners. It doesn't stroke it, use cairo_stroke or cairo_fill to draw the line or the inside.

Parameters

pCairoContext	a drawing context; the current matrix is not altered, but the current path is.
fRadius	radius if the corners.
fLineWidth	width of the line.
fFrameWidth	width of the rectangle, without the corners.
fFrameHeight	height of the rectangle, including the corners.

void cairo_dock_draw_icon_cairo	(	Icon *	icon,
		CairoDock *	pDock,
		cairo_t *	pCairoContext
	)

Draw an icon and its reflect on a dock. Only draw the icon's image and reflect, and nothing else.

Parameters

icon	the icon to draw.
pDock	the dock containing the icon.
pCairoContext	a context on the dock, not altered by the function.

void cairo_dock_render_one_icon	(	Icon *	icon,
		CairoDock *	pDock,
		cairo_t *	pCairoContext,
		double	fDockMagnitude,
		gboolean	bUseText
	)

Draw an icon, according to its current parameters : position, transparency, reflect, rotation, stretching. Also draws its indicators, label, and quick-info. It generates a CAIRO_DOCK_RENDER_ICON notification.

Parameters

icon	the icon to draw.
pDock	the dock containing the icon.
pCairoContext	a context on the dock, it is altered by the function.
fDockMagnitude	current magnitude of the dock.
bUseText	TRUE to draw the labels.

void cairo_dock_draw_string	(	cairo_t *	pCairoContext,
		CairoDock *	pDock,
		double	fStringLineWidth,
		gboolean	bIsLoop,
		gboolean	bForceConstantSeparator
	)

Draw a string linking the center of all the icons of a dock.

Parameters

pCairoContext	a context on the dock, not altered by the function.
pDock	the dock.
fStringLineWidth	width of the line.
bIsLoop	TRUE to loop (link the last icon to the first one).
bForceConstantSeparator	TRUE to consider separators having a constant size.