diff --git a/libs/gtkmm2ext/cairo_icon.cc b/libs/gtkmm2ext/cairo_icon.cc index 2011e6968e..24450e3300 100644 --- a/libs/gtkmm2ext/cairo_icon.cc +++ b/libs/gtkmm2ext/cairo_icon.cc @@ -17,6 +17,11 @@ */ +#if !defined USE_CAIRO_IMAGE_SURFACE && !defined NDEBUG +#define OPTIONAL_CAIRO_IMAGE_SURFACE +#endif + + #include "gtkmm2ext/cairo_icon.h" #include "gtkmm2ext/gtk_ui.h" @@ -26,8 +31,7 @@ CairoIcon::CairoIcon (ArdourIcon::Icon t, uint32_t foreground_color) : icon_type (t) , fg (foreground_color) { - set_draw_background (false); - set_widget_prelight (false); + add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK); } CairoIcon::~CairoIcon () @@ -51,3 +55,61 @@ CairoIcon::render (cairo_t* cr , cairo_rectangle_t* area) ArdourIcon::render (cr, icon_type, width, height, Off, fg); } +bool +CairoIcon::on_expose_event (GdkEventExpose *ev) +{ +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + Cairo::RefPtr cr; + if (getenv("ARDOUR_IMAGE_SURFACE")) { + if (!image_surface) { + image_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height()); + } + cr = Cairo::Context::create (image_surface); + } else { + cr = get_window()->create_cairo_context (); + } +#elif defined USE_CAIRO_IMAGE_SURFACE + + if (!image_surface) { + image_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height()); + } + + Cairo::RefPtr cr = Cairo::Context::create (image_surface); +#else + Cairo::RefPtr cr = get_window()->create_cairo_context (); +#endif + + cr->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height); + cr->clip (); + + cr->translate (ev->area.x, ev->area.y); + + cairo_rectangle_t expose_area; + expose_area.x = ev->area.x; + expose_area.y = ev->area.y; + expose_area.width = ev->area.width; + expose_area.height = ev->area.height; + + CairoIcon::render (cr->cobj(), &expose_area); + +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + if (getenv("ARDOUR_IMAGE_SURFACE")) { +#endif +#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE + image_surface->flush(); + /* now blit our private surface back to the GDK one */ + + Cairo::RefPtr cairo_context = get_window()->create_cairo_context (); + + cairo_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height); + cairo_context->clip (); + cairo_context->set_source (image_surface, 0, 0); + cairo_context->set_operator (Cairo::OPERATOR_SOURCE); + cairo_context->paint (); +#endif +#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE + } +#endif + + return true; +} diff --git a/libs/gtkmm2ext/gtkmm2ext/cairo_icon.h b/libs/gtkmm2ext/gtkmm2ext/cairo_icon.h index 7be75861c7..83d0626dc7 100644 --- a/libs/gtkmm2ext/gtkmm2ext/cairo_icon.h +++ b/libs/gtkmm2ext/gtkmm2ext/cairo_icon.h @@ -20,8 +20,9 @@ #ifndef __gtk2_ardour_cairo_icon_h__ #define __gtk2_ardour_cairo_icon_h__ +#include + #include "gtkmm2ext/visibility.h" -#include "gtkmm2ext/cairo_widget.h" #include "gtkmm2ext/ardour_icon.h" /** A parent class for icons that are rendered using Cairo but need to be @@ -30,7 +31,7 @@ namespace Gtkmm2ext { -class LIBGTKMM2EXT_API CairoIcon : public CairoWidget +class LIBGTKMM2EXT_API CairoIcon : public Gtk::Bin { public: CairoIcon (Gtkmm2ext::ArdourIcon::Icon, uint32_t fg = 0x000000ff); @@ -38,8 +39,11 @@ public: void render (cairo_t *, cairo_rectangle_t*); void set_fg (uint32_t fg); + + bool on_expose_event (GdkEventExpose*); private: + Cairo::RefPtr image_surface; ArdourIcon::Icon icon_type; uint32_t fg; };