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add some more variants of the cairo rounded rectangle code

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git-svn-id: svn://localhost/ardour2/branches/3.0@11434 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2012-02-03 03:55:58 +00:00
parent f821c47c53
commit 6db9cb8d75
2 changed files with 83 additions and 0 deletions
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7
libs/gtkmm2ext/gtkmm2ext/utils.h
View File

@ -93,7 +93,14 @@ namespace Gtkmm2ext {
void container_clear (Gtk::Container&);
void rounded_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r=10);
void rounded_top_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r=10);
void rounded_top_left_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r=10);
void rounded_top_right_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r=10);
void rounded_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
void rounded_top_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
void rounded_top_left_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
void rounded_top_right_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
};
#endif /* __gtkmm2ext_utils_h__ */

76
libs/gtkmm2ext/utils.cc
View File

@ -389,6 +389,24 @@ Gtkmm2ext::rounded_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, d
rounded_rectangle (context->cobj(), x, y, w, h, r);
}
void
Gtkmm2ext::rounded_top_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
{
rounded_top_rectangle (context->cobj(), x, y, w, h, r);
}
void
Gtkmm2ext::rounded_top_left_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
{
rounded_top_left_rectangle (context->cobj(), x, y, w, h, r);
}
void
Gtkmm2ext::rounded_top_right_rectangle (Cairo::RefPtr<Cairo::Context> context, double x, double y, double w, double h, double r)
{
rounded_top_right_rectangle (context->cobj(), x, y, w, h, r);
}
void
Gtkmm2ext::rounded_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
{
@ -411,6 +429,64 @@ Gtkmm2ext::rounded_rectangle (cairo_t* cr, double x, double y, double w, double
cairo_curve_to (cr, x,y,x,y,x+r,y); // Curve to A
}
void
Gtkmm2ext::rounded_top_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
{
/* renders small shapes better than most others */
/* A****BQ
H C
* *
* *
F****E
*/
cairo_move_to (cr, x+r,y); // Move to A
cairo_line_to (cr, x+w-r,y); // Straight line to B
cairo_curve_to (cr, x+w,y,x+w,y,x+w,y+r); // Curve to C, Control points are both at Q
cairo_line_to (cr, x+w,y+h); // Move to E
cairo_line_to (cr, x,y+h); // Line to F
cairo_line_to (cr, x,y+r); // Line to H
cairo_curve_to (cr, x,y,x,y,x+r,y); // Curve to A
}
void
Gtkmm2ext::rounded_top_left_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
{
/* renders small shapes better than most others */
/* A****B
H *
* *
* *
F****E
*/
cairo_move_to (cr, x+r,y); // Move to A
cairo_line_to (cr, x+w,y); // Straight line to B
cairo_line_to (cr, x+w,y+h); // Move to E
cairo_line_to (cr, x,y+h); // Line to F
cairo_line_to (cr, x,y+r); // Line to H
cairo_curve_to (cr, x,y,x,y,x+r,y); // Curve to A
}
void
Gtkmm2ext::rounded_top_right_rectangle (cairo_t* cr, double x, double y, double w, double h, double r)
{
/* renders small shapes better than most others */
/* A****BQ
* C
* *
* *
F****E
*/
cairo_move_to (cr, x+r,y); // Move to A
cairo_line_to (cr, x+w-r,y); // Straight line to B
cairo_curve_to (cr, x+w,y,x+w,y,x+w,y+r); // Curve to C, Control points are both at Q
cairo_line_to (cr, x+w,y+h); // Move to E
cairo_line_to (cr, x,y+h); // Line to F
cairo_line_to (cr, x,y); // Line to A
}
#else
void