some changes to ArdourButton to allow custom colors to be set (e.g. based on track...

diff --git a/gtk2_ardour/ardour_button.cc b/gtk2_ardour/ardour_button.cc
index f1f45e90c3f727b0d25a0b4f25f20224368bd1c2..c79a27264f8197fcff45d121520b28f77bc4d2ca 100644 (file)
--- a/gtk2_ardour/ardour_button.cc
+++ b/gtk2_ardour/ardour_button.cc
@@ -66,7 +66,14 @@ ArdourButton::ArdourButton (Element e)
        , _yalign(.5)
        , border_color (0)
        , fill_color_active (0)
-       , fill_color_inactive (0)
+       , fill_color_active_start(0)
+       , fill_color_active_end(0)
+       , fill_color_inactive_start(0)
+       , fill_color_inactive_end(0)
+       , text_color_inactive(0)
+       , text_color_active(0)
+       , led_color_inactive(0)
+       , led_color_active(0)
        , fill_pattern (0)
        , fill_pattern_active (0)
        , shine_pattern (0)
@@ -95,7 +102,14 @@ ArdourButton::ArdourButton (const std::string& str, Element e)
        , _yalign(.5)
        , border_color (0)
        , fill_color_active (0)
-       , fill_color_inactive (0)
+       , fill_color_active_start(0)
+       , fill_color_active_end(0)
+       , fill_color_inactive_start(0)
+       , fill_color_inactive_end(0)
+       , text_color_inactive(0)
+       , text_color_active(0)
+       , led_color_inactive(0)
+       , led_color_active(0)
        , fill_pattern (0)
        , fill_pattern_active (0)
        , shine_pattern (0)
@@ -271,7 +285,7 @@ ArdourButton::render (cairo_t* cr)
 
                } else {
 
-                       UINT_TO_RGBA (fill_color_inactive, &r, &g, &b, &a);
+                       UINT_TO_RGBA (fill_color_inactive_end, &r, &g, &b, &a);
                        cairo_set_line_width (cr, 2.0);
                        rounded_function (cr, 2, 2, get_width()-4, get_height()-4, _corner_radius - 2.0);
                        cairo_set_source_rgba (cr, r/255.0, g/255.0, b/255.0, a/255.0);
@@ -480,6 +494,57 @@ ArdourButton::on_size_request (Gtk::Requisition* req)
 
 void
 ArdourButton::set_colors ()
+{
+       Glib::ustring button_name = get_name();
+
+       if (button_name == "") {
+               return;
+       }
+       
+       border_color = ARDOUR_UI::config()->color_by_name ("button border");
+       
+       fill_color_active_start = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", button_name));
+       fill_color_active_end = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", button_name));
+       
+       fill_color_inactive_start = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", button_name));
+       fill_color_inactive_end = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", button_name));
+       
+       text_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text active", button_name));
+       text_color_inactive = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text", button_name));
+    
+       led_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", button_name));
+       led_color_inactive = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", button_name));
+}
+
+void ArdourButton::set_bg_colors (const uint32_t color_active, const uint32_t color_inactive)
+{
+       set_colors ();
+       set_name ("");
+       fill_color_active_start = fill_color_active_end = color_active;
+
+       unsigned char r, g, b, a;
+       UINT_TO_RGBA(color_active, &r, &g, &b, &a);
+       
+       double white_contrast = (max (double(r), 255.) - min (double(r), 255.)) +
+               (max (double(g), 255.) - min (double(g), 255.)) +
+               (max (double(b), 255.) - min (double(b), 255.));
+       
+       double black_contrast = (max (double(r), 0.) - min (double(r), 0.)) +
+               (max (double(g), 0.) - min (double(g), 0.)) +
+               (max (double(b), 0.) - min (double(b), 0.));
+       
+       text_color_active =
+               text_color_inactive = (white_contrast > black_contrast) ?
+               RGBA_TO_UINT(255, 255, 255, 255) : /* use white */
+               RGBA_TO_UINT(  0,   0,   0,   255);  /* use black */
+       
+       fill_color_inactive_start = fill_color_inactive_end = color_inactive;
+
+       build_patterns ();
+}
+
+void
+ArdourButton::build_patterns()
 {
        uint32_t start_color;
        uint32_t end_color;
@@ -488,12 +553,10 @@ ArdourButton::set_colors ()
        uint32_t led_color;
 
        if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
-               fill_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
+               fill_color_active = led_color_active;
        } else {
-               fill_color_active = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
+               fill_color_active = fill_color_active_end;
        }
-       fill_color_inactive = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", get_name()));
-       border_color = ARDOUR_UI::config()->color_by_name ( "button border" );
 
        if (shine_pattern) {
                cairo_pattern_destroy (shine_pattern);
@@ -513,6 +576,7 @@ ArdourButton::set_colors ()
        if (_elements & Body) {
 
                start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", get_name()));
+               start_color = fill_color_active_start;
                
                if (_flat_buttons) {
                        end_color = start_color;
@@ -534,10 +598,10 @@ ArdourButton::set_colors ()
 
                fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
                if (_flat_buttons) {
-                       end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", get_name()));
+                       end_color = start_color = fill_color_inactive_end;
                } else {
-                       start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", get_name()));
-                       end_color = fill_color_inactive;
+                       start_color = fill_color_inactive_start;
+                       end_color = fill_color_inactive_end;
                }
                UINT_TO_RGBA (start_color, &r, &g, &b, &a);
                cairo_pattern_add_color_stop_rgba (fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
@@ -547,17 +611,17 @@ ArdourButton::set_colors ()
                fill_pattern_active = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height()-3);
                if (_flat_buttons) {
                        if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
-                               end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
+                               end_color = start_color = led_color_active;
                        } else {
-                               end_color = start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
+                               end_color = start_color = fill_color_active_end;
                        }
                } else {
                        if (active_state() == Gtkmm2ext::ImplicitActive && (_tweaks & ImplicitUsesSolidColor)) {
-                               start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", get_name()));
-                               end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
+                               start_color = led_color_inactive;
+                               end_color = led_color_active;
                        } else {
-                               start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", get_name()));
-                               end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", get_name()));
+                               start_color = fill_color_active_start;
+                               end_color = fill_color_active_end;
                        }
                }
                UINT_TO_RGBA (start_color, &r, &g, &b, &a);
@@ -587,11 +651,11 @@ ArdourButton::set_colors ()
        /* text and LED colors */
 
        if (active_state() == Gtkmm2ext::ExplicitActive || ((_tweaks & ImplicitUsesSolidColor) && active_state() == Gtkmm2ext::ImplicitActive)) {
-               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text active", get_name()));
-               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led active", get_name()));
+               text_color = text_color_active;
+               led_color = led_color_active;
        } else {
-               text_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: text", get_name()));
-               led_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: led", get_name()));
+               text_color = text_color_inactive;
+               led_color = led_color_inactive;
        }
 
        UINT_TO_RGBA (text_color, &r, &g, &b, &a);
@@ -681,6 +745,7 @@ void
 ArdourButton::color_handler ()
 {
        set_colors ();
+       build_patterns ();
        set_dirty ();
 }
 
@@ -689,7 +754,7 @@ ArdourButton::on_size_allocate (Allocation& alloc)
 {
        CairoWidget::on_size_allocate (alloc);
        setup_led_rect ();
-       set_colors ();
+       build_patterns ();
 }
 
 void
@@ -763,6 +828,7 @@ void
 ArdourButton::on_style_changed (const RefPtr<Gtk::Style>&)
 {
        set_colors ();
+       build_patterns ();
 }
 
 void
@@ -813,7 +879,7 @@ ArdourButton::set_active_state (Gtkmm2ext::ActiveState s)
        bool changed = (_active_state != s);
        CairoWidget::set_active_state (s);
        if (changed) {
-               set_colors ();
+               build_patterns ();
        }
 }
        
@@ -823,7 +889,7 @@ ArdourButton::set_visual_state (Gtkmm2ext::VisualState s)
        bool changed = (_visual_state != s);
        CairoWidget::set_visual_state (s);
        if (changed) {
-               set_colors ();
+               build_patterns ();
        }
 }
        
@@ -871,7 +937,6 @@ ArdourButton::action_sensitivity_changed ()
        
 }
 
-
 void
 ArdourButton::action_visibility_changed ()
 {
@@ -900,14 +965,14 @@ void
 ArdourButton::set_elements (Element e)
 {
        _elements = e;
-       set_colors ();
+       build_patterns ();
 }
 
 void
 ArdourButton::add_elements (Element e)
 {
        _elements = (ArdourButton::Element) (_elements | e);
-       set_colors ();
+       build_patterns ();
 }
 
 void

diff --git a/gtk2_ardour/ardour_button.h b/gtk2_ardour/ardour_button.h
index 65ea10b201427cf18e46791d6ccedf5059538be4..48aa056849f19be1a48c244a312557cc4c7cbb1a 100644 (file)
--- a/gtk2_ardour/ardour_button.h
+++ b/gtk2_ardour/ardour_button.h
@@ -95,6 +95,7 @@ class ArdourButton : public CairoWidget , public Gtkmm2ext::Activatable
        bool on_button_release_event (GdkEventButton*);
 
        void set_image (const Glib::RefPtr<Gdk::Pixbuf>&);
+        void set_bg_colors (uint32_t color_active, uint32_t color_inactive);
 
   protected:
        void render (cairo_t *);
@@ -126,8 +127,17 @@ class ArdourButton : public CairoWidget , public Gtkmm2ext::Activatable
 
        uint32_t bg_color;
        uint32_t border_color;
-       uint32_t fill_color_active;
-       uint32_t fill_color_inactive;
+
+        uint32_t fill_color_active;
+        uint32_t fill_color_active_start;
+       uint32_t fill_color_active_end;
+        uint32_t fill_color_inactive_start;
+       uint32_t fill_color_inactive_end;
+        uint32_t text_color_inactive;
+        uint32_t text_color_active;
+        uint32_t led_color_inactive;
+       uint32_t led_color_active;
+
        cairo_pattern_t* fill_pattern;
        cairo_pattern_t* fill_pattern_active;
        cairo_pattern_t* shine_pattern;
@@ -161,6 +171,7 @@ class ArdourButton : public CairoWidget , public Gtkmm2ext::Activatable
 
        void setup_led_rect ();
        void set_colors ();
+        void build_patterns ();
        void color_handler ();
 
        void action_toggled ();