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Add API to render a reflection

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This is to be used sparingly because the pattern is dynamically
created every time. Mainly for the benefit of some Mixbus
widgets -- compared to ArdourButton::convex_pattern
This commit is contained in:
Robin Gareus 2019-04-11 02:06:32 +02:00
parent a16c038ecc
commit 01024e2b4c
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GPG key ID: A090BCE02CF57F04
2 changed files with 15 additions and 0 deletions
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2
libs/gtkmm2ext/gtkmm2ext/utils.h
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@ -158,6 +158,8 @@ namespace Gtkmm2ext {
LIBGTKMM2EXT_API void rounded_right_half_rectangle (cairo_t*, double x, double y, double w, double h, double r=10); LIBGTKMM2EXT_API void rounded_right_half_rectangle (cairo_t*, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void rounded_left_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r=10); LIBGTKMM2EXT_API void rounded_left_half_rectangle (cairo_t* cr, double x, double y, double w, double h, double r=10);
LIBGTKMM2EXT_API void add_reflection (cairo_t* cr, double w, double h);
LIBGTKMM2EXT_API Gtk::Label* left_aligned_label (std::string const &); LIBGTKMM2EXT_API Gtk::Label* left_aligned_label (std::string const &);
LIBGTKMM2EXT_API Gtk::Label* right_aligned_label (std::string const &); LIBGTKMM2EXT_API Gtk::Label* right_aligned_label (std::string const &);

13
libs/gtkmm2ext/utils.cc
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@ -800,6 +800,19 @@ Gtkmm2ext::rounded_top_right_rectangle (cairo_t* cr, double x, double y, double
cairo_line_to (cr, x,y); // Line to A cairo_line_to (cr, x,y); // Line to A
} }
void
Gtkmm2ext::add_reflection (cairo_t* cr, double w, double h)
{
cairo_pattern_t* convex_pattern = cairo_pattern_create_linear (0.0, 0, 0.3, h * 0.7);
cairo_pattern_add_color_stop_rgba (convex_pattern, 0.0, 1, 1, 1, 0.10);
cairo_pattern_add_color_stop_rgba (convex_pattern, 0.79, 1, 1, 1, 0.03);
cairo_pattern_add_color_stop_rgba (convex_pattern, 1.0, 1, 1, 1, 0.0);
cairo_set_source (cr, convex_pattern);
Gtkmm2ext::rounded_rectangle (cr, 2, 2, w - 4, h - 4, 4);
cairo_fill (cr);
cairo_pattern_destroy(convex_pattern);
}
Glib::RefPtr<Gdk::Window> Glib::RefPtr<Gdk::Window>
Gtkmm2ext::window_to_draw_on (Gtk::Widget& w, Gtk::Widget** parent) Gtkmm2ext::window_to_draw_on (Gtk::Widget& w, Gtk::Widget** parent)
{ {