gtk2_ardour/button_joiner.cc

   1 #include <iostream>
   2 #include <algorithm>
   3
   4
   5 #include <gtkmm/toggleaction.h>
   6
   7 #include "pbd/compose.h"
   8 #include "gtkmm2ext/utils.h"
   9 #include "gtkmm2ext/rgb_macros.h"
  10
  11 #include "ardour_ui.h"
  12 #include "button_joiner.h"
  13
  14 using namespace Gtk;
  15
  16 ButtonJoiner::ButtonJoiner (const std::string& str, Gtk::Widget& lw, Gtk::Widget& rw)
  17         : left (lw)
  18         , right (rw)
  19         , name (str)
  20         , active_fill_pattern (0)
  21         , inactive_fill_pattern (0)
  22 {
  23         packer.set_homogeneous (true);
  24         packer.pack_start (left);
  25         packer.pack_start (right);
  26         packer.show ();
  27
  28         align.add (packer);
  29         align.set (0.5, 1.0);
  30         align.set_padding (9, 0, 9, 9);
  31         align.show ();
  32
  33         add (align);
  34
  35         add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|
  36                     Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
  37
  38         uint32_t border_color;
  39         uint32_t r, g, b, a;
  40
  41         border_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: border end", name));
  42         UINT_TO_RGBA (border_color, &r, &g, &b, &a);
  43
  44         border_r = r/255.0;
  45         border_g = g/255.0;
  46         border_b = b/255.0;
  47
  48         /* child cairo widgets need the color of the inner edge as their
  49          * "background"
  50          */
  51
  52         Gdk::Color col;
  53         col.set_rgb_p (border_r, border_g, border_b);
  54         provide_background_for_cairo_widget (*this, col);
  55 }
  56
  57 ButtonJoiner::~ButtonJoiner ()
  58 {
  59         if (active_fill_pattern) {
  60                 cairo_pattern_destroy (active_fill_pattern);
  61                 cairo_pattern_destroy (inactive_fill_pattern);
  62         }
  63 }
  64
  65 void
  66 ButtonJoiner::render (cairo_t* cr)
  67 {
  68         double h = get_height();
  69
  70         if (!get_active()) {
  71                 cairo_set_source (cr, inactive_fill_pattern);
  72         } else {
  73                 cairo_set_source (cr, active_fill_pattern);
  74         }
  75
  76         /* outer rect */
  77
  78         Gtkmm2ext::rounded_top_rectangle (cr, 0, 0, get_width(), h, 12);
  79         cairo_fill_preserve (cr);
  80
  81         /* outer edge */
  82
  83         cairo_set_line_width (cr, 1);
  84         cairo_set_source_rgb (cr, border_r, border_g, border_b);
  85         cairo_stroke (cr);
  86
  87         /* inner "edge" */
  88
  89         Gtkmm2ext::rounded_top_rectangle (cr, 8, 8, get_width() - 16, h - 8, 10);
  90         cairo_stroke (cr);
  91
  92 }
  93
  94 void
  95 ButtonJoiner::on_size_allocate (Allocation& alloc)
  96 {
  97         CairoWidget::on_size_allocate (alloc);
  98         set_colors ();
  99 }
 100
 101 bool
 102 ButtonJoiner::on_button_release_event (GdkEventButton* ev)
 103 {
 104         if (_action) {
 105                 _action->activate ();
 106         }
 107
 108         return true;
 109 }
 110
 111 void
 112 ButtonJoiner::on_size_request (Gtk::Requisition* r)
 113 {
 114         CairoWidget::on_size_request (r);
 115 }
 116
 117 void
 118 ButtonJoiner::set_related_action (Glib::RefPtr<Action> act)
 119 {
 120         Gtkmm2ext::Activatable::set_related_action (act);
 121
 122         if (_action) {
 123
 124                 action_tooltip_changed ();
 125
 126                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
 127                 if (tact) {
 128                         action_toggled ();
 129                         tact->signal_toggled().connect (sigc::mem_fun (*this, &ButtonJoiner::action_toggled));
 130                 }
 131
 132                 _action->connect_property_changed ("sensitive", sigc::mem_fun (*this, &ButtonJoiner::action_sensitivity_changed));
 133                 _action->connect_property_changed ("visible", sigc::mem_fun (*this, &ButtonJoiner::action_visibility_changed));
 134                 _action->connect_property_changed ("tooltip", sigc::mem_fun (*this, &ButtonJoiner::action_tooltip_changed));
 135         }
 136 }
 137
 138 void
 139 ButtonJoiner::action_sensitivity_changed ()
 140 {
 141         if (_action->property_sensitive ()) {
 142                 set_visual_state (Gtkmm2ext::VisualState (visual_state() & ~Gtkmm2ext::Insensitive));
 143         } else {
 144                 set_visual_state (Gtkmm2ext::VisualState (visual_state() | Gtkmm2ext::Insensitive));
 145         }
 146
 147 }
 148
 149 void
 150 ButtonJoiner::action_visibility_changed ()
 151 {
 152         if (_action->property_visible ()) {
 153                 show ();
 154         } else {
 155                 hide ();
 156         }
 157 }
 158
 159 void
 160 ButtonJoiner::action_tooltip_changed ()
 161 {
 162         std::string str = _action->property_tooltip().get_value();
 163         ARDOUR_UI::instance()->set_tip (*this, str);
 164 }
 165
 166 void
 167 ButtonJoiner::action_toggled ()
 168 {
 169         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (_action);
 170
 171         if (tact) {
 172                 set_active (tact->get_active());
 173         }
 174 }
 175
 176 void
 177 ButtonJoiner::set_active_state (Gtkmm2ext::ActiveState s)
 178 {
 179         bool changed = (_active_state != s);
 180         CairoWidget::set_active_state (s);
 181         if (changed) {
 182                 set_colors ();
 183         }
 184 }
 185
 186 void
 187 ButtonJoiner::set_colors ()
 188 {
 189         uint32_t start_color;
 190         uint32_t end_color;
 191         uint32_t r, g, b, a;
 192
 193         if (active_fill_pattern) {
 194                 cairo_pattern_destroy (active_fill_pattern);
 195                 cairo_pattern_destroy (inactive_fill_pattern);
 196         }
 197
 198         active_fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
 199         inactive_fill_pattern = cairo_pattern_create_linear (0.0, 0.0, 0.0, get_height());
 200
 201         start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start", name));
 202         end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end", name));
 203         UINT_TO_RGBA (start_color, &r, &g, &b, &a);
 204         cairo_pattern_add_color_stop_rgba (inactive_fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
 205         UINT_TO_RGBA (end_color, &r, &g, &b, &a);
 206         cairo_pattern_add_color_stop_rgba (inactive_fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
 207
 208         start_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill start active", name));
 209         end_color = ARDOUR_UI::config()->color_by_name (string_compose ("%1: fill end active", name));
 210         UINT_TO_RGBA (start_color, &r, &g, &b, &a);
 211         cairo_pattern_add_color_stop_rgba (active_fill_pattern, 0, r/255.0,g/255.0,b/255.0, a/255.0);
 212         UINT_TO_RGBA (end_color, &r, &g, &b, &a);
 213         cairo_pattern_add_color_stop_rgba (active_fill_pattern, 1, r/255.0,g/255.0,b/255.0, a/255.0);
 214
 215         queue_draw ();
 216 }
 217