Add a notification system and use it for save/copy/paste events

5 files changed, 127 insertions, 2 deletions

diff --git a/src/clipboard.c b/src/clipboard.c
index eba28ae..edb9b31 100644
--- a/src/clipboard.c
+++ b/src/clipboard.c
@@ -35,16 +35,20 @@ clipboard_paste(void) {
                         case 0: {
                             pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
                             pat_dst->ch1.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                         case 1: {
                             pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
                             pat_dst->ch2.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                         case 2: {
                             pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 3: {
                             pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                     }
                 } break;
@@ -56,16 +60,20 @@ clipboard_paste(void) {
                             pat_dst->ch1.params[trig_selection_loc].env_time = pat_src->ch2.params[clipboard.src_trig].env_time;
                             pat_dst->ch1.params[trig_selection_loc].env_direction = pat_src->ch2.params[clipboard.src_trig].env_direction;
                             pat_dst->ch1.params[trig_selection_loc].duty_cycle = pat_src->ch2.params[clipboard.src_trig].duty_cycle;
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                         case 1: {
                             pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
                             pat_dst->ch2.params[trig_selection_loc] = pat_src->ch2.params[clipboard.src_trig];
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                         case 2: {
                             pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 3: {
                             pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                     }
                 } break;
@@ -73,16 +81,20 @@ clipboard_paste(void) {
                     switch (channel_selection_loc) {
                         case 0: {
                             pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 1: {
                             pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 2: {
                             pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
                             pat_dst->ch3.params[trig_selection_loc] = pat_src->ch3.params[clipboard.src_trig];
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                         case 3: {
                             pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                     }
                 } break;
@@ -90,16 +102,20 @@ clipboard_paste(void) {
                     switch (channel_selection_loc) {
                         case 0: {
                             pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 1: {
                             pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 2: {
                             pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
+                            send_notif("PASTED NOTE");
                         } break;
                         case 3: {
                             pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
                             pat_dst->ch4.params[trig_selection_loc] = pat_src->ch4.params[clipboard.src_trig];
+                            send_notif("PASTED NOTE & PARAMS");
                         } break;
                     }
                 } break;
@@ -110,9 +126,11 @@ clipboard_paste(void) {
             switch (channel_selection_loc) {
                 case 0: {
                     pat_dst->ch1.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+                    send_notif("PASTED PARAMS");
                 } break;
                 case 1: {
                     pat_dst->ch2.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+                    send_notif("PASTED PARAMS");
                 } break;
             }
         }
@@ -123,40 +141,50 @@ clipboard_paste(void) {
                     pat_dst->ch1.params[trig_selection_loc].env_time = pat_src->ch2.params[clipboard.src_trig].env_time;
                     pat_dst->ch1.params[trig_selection_loc].env_direction = pat_src->ch2.params[clipboard.src_trig].env_direction;
                     pat_dst->ch1.params[trig_selection_loc].duty_cycle = pat_src->ch2.params[clipboard.src_trig].duty_cycle;
+                    send_notif("PASTED PARAMS");
                 } break;
                 case 1: {
                     pat_dst->ch2.params[trig_selection_loc] = pat_src->ch2.params[clipboard.src_trig];
+                    send_notif("PASTED PARAMS");
                 } break;
             }
         }
         if (clipboard.type == CLIP_PARAM_CH3 && channel_selection_loc == clipboard.src_chan) {
             pat_dst->ch3.params[trig_selection_loc] = pat_src->ch3.params[clipboard.src_trig];
+            send_notif("PASTED PARAMS");
         }
         if (clipboard.type == CLIP_PARAM_CH4 && channel_selection_loc == clipboard.src_chan) {
             pat_dst->ch4.params[trig_selection_loc] = pat_src->ch4.params[clipboard.src_trig];
+            send_notif("PASTED PARAMS");
         }
         draw_triggers();
         draw_parameters();
     } else if (input_handler == handle_param_selection_sq1 && clipboard.type == CLIP_PARAM_CH1) {
         pat_dst->ch1.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_param_selection_sq1 && clipboard.type == CLIP_PARAM_CH2) {
         pat_dst->ch1.params[trig_selection_loc].env_volume = pat_src->ch2.params[clipboard.src_trig].env_volume;
         pat_dst->ch1.params[trig_selection_loc].env_time = pat_src->ch2.params[clipboard.src_trig].env_time;
         pat_dst->ch1.params[trig_selection_loc].env_direction = pat_src->ch2.params[clipboard.src_trig].env_direction;
         pat_dst->ch1.params[trig_selection_loc].duty_cycle = pat_src->ch2.params[clipboard.src_trig].duty_cycle;
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_param_selection_sq2 && clipboard.type == CLIP_PARAM_CH2) {
         pat_dst->ch2.params[trig_selection_loc] = pat_src->ch2.params[clipboard.src_trig];
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_param_selection_sq2 && clipboard.type == CLIP_PARAM_CH1) {
         pat_dst->ch2.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_param_selection_wave && clipboard.type == CLIP_PARAM_CH3) {
         pat_dst->ch3.params[trig_selection_loc] = pat_src->ch3.params[clipboard.src_trig];
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_param_selection_noise && clipboard.type == CLIP_PARAM_CH4) {
         pat_dst->ch4.params[trig_selection_loc] = pat_src->ch4.params[clipboard.src_trig];
+        send_notif("PASTED PARAMS");
         draw_parameters();
     } else if (input_handler == handle_channel_selection && clipboard.type == CLIP_CHANNEL) {
         // Copy notes from a different channel OR notes and parameters
@@ -168,6 +196,7 @@ clipboard_paste(void) {
                 case 2: { pat_dst->ch3 = pat_src->ch3; } break;
                 case 3: { pat_dst->ch4 = pat_src->ch4; } break;
             }
+            send_notif("PASTED NOTES & PARAMS");
         } else {
             switch (clipboard.src_chan) {
                 case 0: {
@@ -177,22 +206,26 @@ clipboard_paste(void) {
                                 pat_dst->ch1.notes[i] = pat_src->ch1.notes[i];
                                 pat_dst->ch1.params[i] = pat_src->ch1.params[i];
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                         case 1: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch2.notes[i] = pat_src->ch1.notes[i];
                                 pat_dst->ch2.params[i] = pat_src->ch1.params[i];
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                         case 2: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch3.notes[i] = pat_src->ch1.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 3: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch4.notes[i] = pat_src->ch1.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                     }
                 } break;
@@ -206,22 +239,26 @@ clipboard_paste(void) {
                                 pat_dst->ch1.params[i].env_direction = pat_src->ch2.params[i].env_direction;
                                 pat_dst->ch1.params[i].duty_cycle = pat_src->ch2.params[i].duty_cycle;
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                         case 1: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch2.notes[i] = pat_src->ch2.notes[i];
                                 pat_dst->ch2.params[i] = pat_src->ch2.params[i];
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                         case 2: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch3.notes[i] = pat_src->ch2.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 3: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch4.notes[i] = pat_src->ch2.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                     }
                 } break;
@@ -231,22 +268,26 @@ clipboard_paste(void) {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch1.notes[i] = pat_src->ch3.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 1: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch2.notes[i] = pat_src->ch3.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 2: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch3.notes[i] = pat_src->ch3.notes[i];
                                 pat_dst->ch3.params[i] = pat_src->ch3.params[i];
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                         case 3: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch4.notes[i] = pat_src->ch3.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                     }
                 } break;
@@ -256,22 +297,26 @@ clipboard_paste(void) {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch1.notes[i] = pat_src->ch4.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 1: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch2.notes[i] = pat_src->ch4.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 2: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch3.notes[i] = pat_src->ch4.notes[i];
                             }
+                            send_notif("PASTED NOTES");
                         } break;
                         case 3: {
                             for (size_t i = 0; i < 16; i++) {
                                 pat_dst->ch4.notes[i] = pat_src->ch4.notes[i];
                                 pat_dst->ch4.params[i] = pat_src->ch4.params[i];
                             }
+                            send_notif("PASTED NOTES & PARAMS");
                         } break;
                     }
                 } break;
@@ -290,6 +335,7 @@ clipboard_paste(void) {
                         for (size_t i = 0; i < 16; i++) {
                             pat_dst->ch1.params[i] = pat_src->ch1.params[clipboard.src_trig];
                         }
+                        send_notif("PASTED PARAMS");
                     }
                     if (clipboard.src_chan == 1) {
                         ch1_params.env_volume = pat_src->ch2.params[clipboard.src_trig].env_volume;
@@ -302,6 +348,7 @@ clipboard_paste(void) {
                             pat_dst->ch1.params[i].env_direction = pat_src->ch2.params[clipboard.src_trig].env_direction;
                             pat_dst->ch1.params[i].duty_cycle = pat_src->ch2.params[clipboard.src_trig].duty_cycle;
                         }
+                        send_notif("PASTED PARAMS");
                     }
                 }
             } break;
@@ -314,12 +361,14 @@ clipboard_paste(void) {
                         for (size_t i = 0; i < 16; i++) {
                             pat_dst->ch2.params[i] = pat_src->ch1.params[clipboard.src_trig];
                         }
+                        send_notif("PASTED PARAMS");
                     }
                     if (clipboard.src_chan == 1) {
                         ch2_params = pat_src->ch2.params[clipboard.src_trig];
                         for (size_t i = 0; i < 16; i++) {
                             pat_dst->ch2.params[i] = pat_src->ch2.params[clipboard.src_trig];
                         }
+                        send_notif("PASTED PARAMS");
                     }
                 }
             } break;
@@ -332,6 +381,7 @@ clipboard_paste(void) {
                     for (size_t i = 0; i < 16; i++) {
                         pat_dst->ch3.params[i] = pat_src->ch3.params[clipboard.src_trig];
                     }
+                    send_notif("PASTED PARAMS");
                 }
             } break;
             case 3: {
@@ -343,6 +393,7 @@ clipboard_paste(void) {
                     for (size_t i = 0; i < 16; i++) {
                         pat_dst->ch4.params[i] = pat_src->ch4.params[clipboard.src_trig];
                     }
+                    send_notif("PASTED PARAMS");
                 }
             } break;
         }
@@ -352,10 +403,13 @@ clipboard_paste(void) {
             *pat_dst = *pat_src;
             draw_channels();
             draw_triggers();
+            send_notif("PASTED PATTERN");
         }
     }
 }
 
+void send_notif(char *msg);
+
 void
 clipboard_copy(void) {
     if (input_handler == handle_trigger_selection) {
@@ -363,33 +417,40 @@ clipboard_copy(void) {
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
         clipboard.src_trig = trig_selection_loc;
+        send_notif("COPIED TRIGGER");
     } else if (input_handler == handle_param_selection_sq1) {
         clipboard.type = CLIP_PARAM_CH1;
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
         clipboard.src_trig = trig_selection_loc;
+        send_notif("COPIED CH1 PARAMS");
     } else if (input_handler == handle_param_selection_sq2) {
         clipboard.type = CLIP_PARAM_CH2;
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
         clipboard.src_trig = trig_selection_loc;
+        send_notif("COPIED CH2 PARAMS");
     } else if (input_handler == handle_param_selection_wave) {
         clipboard.type = CLIP_PARAM_CH3;
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
         clipboard.src_trig = trig_selection_loc;
+        send_notif("COPIED CH3 PARAMS");
     } else if (input_handler == handle_param_selection_noise) {
         clipboard.type = CLIP_PARAM_CH4;
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
         clipboard.src_trig = trig_selection_loc;
+        send_notif("COPIED CH4 PARAMS");
     } else if (input_handler == handle_channel_selection) {
         clipboard.type = CLIP_CHANNEL;
         clipboard.src_pat = pattern_selection_loc;
         clipboard.src_chan = channel_selection_loc;
+        send_notif("COPIED CHANNEL");
     } else if (input_handler == handle_pattern_selection) {
         clipboard.type = CLIP_PATTERN;
         clipboard.src_pat = pattern_selection_loc;
+        send_notif("COPIED PATTERN");
     }
 }
 
diff --git a/src/drawing.c b/src/drawing.c
index 3e00e17..b488ed1 100644
--- a/src/drawing.c
+++ b/src/drawing.c
@@ -1246,6 +1246,30 @@ draw_notif_bar() {
     u8 x1 = PARAMS_START_X + PARAMS_W;
     u8 y1 = y0 + 10;
     u8 color = COL_FG;
+    draw_filled_rect(x0, y0, x1, y1, COL_BG);
     draw_rect(x0, y0, x1, y1, color);
-    txt_drawf_small("HELLO WORLD!", x0 + 2, y0 + 1, color);
+    if (notif.time > 0) {
+        char msg[32] = {0};
+        if (notif.time <= 32) {
+            for (size_t i = 0; i < notif.time; i++) {
+                msg[i] = notif.msg[i + 32 - notif.time];
+            }
+        } else {
+            for (size_t i = 0; i < 32; i++) {
+                msg[i] = notif.msg[i];
+            }
+        }
+        txt_drawf_small(msg, x0 + 2, y0 + 1, color);
+    } else {
+        // if (notif.time > -16) {
+        //     notif.time--;
+        //     return;
+        // }
+        // TODO: More context dependent messages? Use instructions?
+        if (play_status == 0) {
+            txt_drawf_small("STOPPED", x0 + 2, y0 + 1, color);
+        } else {
+            txt_drawf_small("PLAYING", x0 + 2, y0 + 1, color);
+        }
+    }
 }
diff --git a/src/globals.c b/src/globals.c
index 2f4d32d..c2e2ee2 100644
--- a/src/globals.c
+++ b/src/globals.c
@@ -120,3 +120,14 @@ typedef enum Scene {
 
 static Scene scene = SCENE_SEQUENCER;
 static Scene next_scene = SCENE_SEQUENCER;
+
+typedef struct Notification {
+    // We can only fit 31 characters on the notification bar at the moment.
+    // Leaving an extra character for \0.
+    char msg[32];
+    s16 time;
+} Notification;
+
+static Notification notif = {0};
+
+#define NOTIF_TIME (80 + 32)
diff --git a/src/main.c b/src/main.c
index 5c7d6ed..2e78b3c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,7 +13,7 @@ WITH REGARD TO THIS SOFTWARE.
 //
 // UI tweaks.
 //  - Add custom user themes
-//  - Notification support for feedback when doing some operations
+//  + Notification support for feedback when doing some operations
 //    (copying/pasting)
 //  - Animations for cursor movement/current step highlight. (A fade out maybe?)
 //  - Add panning support.
@@ -28,6 +28,7 @@ WITH REGARD TO THIS SOFTWARE.
 //  - Loop?
 //  - Undo/Redo.
 //  - Select + up/down to queue the next pattern as we move to it?
+//  - Option to show help on the notification bar?
 //
 //  Advanced
 //  - Add tap tempo for BPM.
@@ -172,6 +173,9 @@ update(void) {
     if (audio_sync_click) {
         play_click();
     }
+    if (notif.time > 0) {
+        notif.time--;
+    }
 }
 
 int
diff --git a/src/sequencer.c b/src/sequencer.c
index 5120805..a22c219 100644
--- a/src/sequencer.c
+++ b/src/sequencer.c
@@ -999,11 +999,36 @@ handle_trigger_selection(void) {
 }
 
 void
+send_notif(char *msg) {
+    if (msg == NULL) {
+        return;
+    }
+
+    char buf[32] = {0};
+    size_t n_chars = 0;
+    for (size_t i = 0; i < 32; i++) {
+        if (*msg == '\0') {
+            break;
+        }
+        buf[i] = *msg++;
+        n_chars++;
+    }
+    if (n_chars == 0) {
+        return;
+    }
+    notif.time = NOTIF_TIME;
+    for (size_t i = 0; i < 32; i++) {
+        notif.msg[i] = buf[i];
+    }
+}
+
+void
 handle_sequencer_input(void) {
     if (key_tap(KEY_START)) {
         if (key_hold(KEY_SELECT)) {
             save_bank(current_bank);
             save_metadata();
+            send_notif("SAVED BANK");
             return;
         }
         // Stop the sequencer or start playing from the beginning.