The Gnome Chemistry Utils 0.13.3
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Simple arrows class. More...
#include <arrow.h>
Public Member Functions | |
Arrow (Canvas *canvas, double xstart, double ystart, double xend, double yend) | |
Arrow (Group *parent, double xstart, double ystart, double xend, double yend, ItemClient *client=NULL) | |
virtual | ~Arrow () |
double | Distance (double x, double y, Item **item) const |
void | Draw (cairo_t *cr, bool is_vector) const |
Protected Member Functions | |
void | UpdateBounds () |
Simple arrows class.
Item class for arrows composed of a straight line with one or both ends decorated with an arrow head.
Definition at line 41 of file gccv/arrow.h.
gccv::Arrow::Arrow | ( | Canvas * | canvas, |
double | xstart, | ||
double | ystart, | ||
double | xend, | ||
double | yend | ||
) |
gccv::Arrow::Arrow | ( | Group * | parent, |
double | xstart, | ||
double | ystart, | ||
double | xend, | ||
double | yend, | ||
ItemClient * | client = NULL |
||
) |
parent | the Group to which the new Arrow will be added. |
xstart | the horizontal start position. |
ystart | the vertical start position. |
xend | the horizontal end position. |
yend | the vertical end position. |
client | the ItemClient for the new Arrow if any. |
Creates a new Arrow with a full head at end and no head at start inside parent and sets client as its associated ItemClient.
virtual gccv::Arrow::~Arrow | ( | ) | [virtual] |
The destructor.
double gccv::Arrow::Distance | ( | double | x, |
double | y, | ||
Item ** | item | ||
) | const [virtual] |
x | horizontal position |
y | vertical position |
item | where to store the Item. |
Implementation of Item::Distance() for the Arrow class. Sets item to this.
Reimplemented from gccv::Line.
void gccv::Arrow::Draw | ( | cairo_t * | cr, |
bool | is_vector | ||
) | const [virtual] |
cr | a cairo_t. |
is_vector | whether the cairo_t is a vectorial context. |
Draws the Arrow to cr.
Reimplemented from gccv::Line.
void gccv::Arrow::UpdateBounds | ( | ) | [protected, virtual] |
Evaluates the Arrow bounds.
Reimplemented from gccv::Line.