From 912c37a54c13aca6bbdf290984f7eeccad4ccc0b Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Tue, 4 Apr 2023 11:08:58 +0200
Subject: Add UI for bank selection

---
 src/sequencer.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 54 insertions(+), 8 deletions(-)

(limited to 'src/sequencer.c')

diff --git a/src/sequencer.c b/src/sequencer.c
index 587a720..c4a1d2a 100644
--- a/src/sequencer.c
+++ b/src/sequencer.c
@@ -6,7 +6,7 @@
 //  - Copy paste trigs/notes/params
 //  - Different banks for storing patterns
 //  - Finish noise channel (parameter editing)
-
+void set_time(int bpm);
 
 //
 // Color indexes.
@@ -69,6 +69,9 @@
 #define STOP_START_Y (TRIG_START_Y + 14)
 #define PLAY_STOP_H (10)
 
+#define BANK_START_X (R_SIDEBAR_X + 5)
+#define BANK_START_Y (PAT_START_Y)
+
 #define SEQ_N_CHANNELS 4
 
 //
@@ -207,11 +210,16 @@ int right_col_selection_loc = 0;
 int play_status = 0;
 static int current_pattern = 0;
 static int next_pattern = 0;
+static int current_bank = 0;
 
 enum RIGHT_COL_LOC {
     R_COL_BPM = 0,
     R_COL_STOP = 1,
     R_COL_PLAY = 2,
+    R_COL_BANK_D = 3,
+    R_COL_BANK_C = 4,
+    R_COL_BANK_B = 5,
+    R_COL_BANK_A = 6,
 };
 
 typedef struct TriggerNote {
@@ -426,7 +434,7 @@ typedef struct Pattern {
     ChannelSquare ch2;
     ChannelWave ch3;
     ChannelNoise ch4;
-    u8 bpm;
+    int bpm;
     u8 bank;
 } Pattern;
 
@@ -562,6 +570,26 @@ draw_right_col_cursor(u8 clr) {
             x1 = x0 + R_COL_W;
             y  = PLAY_START_Y + PLAY_STOP_H + 2;
         } break;
+        case R_COL_BANK_A: {
+            x0 = BANK_START_X;
+            x1 = x0 + PAT_W;
+            y  = BANK_START_Y + PAT_H + 2;
+        } break;
+        case R_COL_BANK_B: {
+            x0 = BANK_START_X;
+            x1 = x0 + PAT_W;
+            y  = BANK_START_Y + PAT_H + 2 + 1 * PAT_OFFSET_Y;
+        } break;
+        case R_COL_BANK_C: {
+            x0 = BANK_START_X;
+            x1 = x0 + PAT_W;
+            y  = BANK_START_Y + PAT_H + 2 + 2 * PAT_OFFSET_Y;
+        } break;
+        case R_COL_BANK_D: {
+            x0 = BANK_START_X;
+            x1 = x0 + PAT_W;
+            y  = BANK_START_Y + PAT_H + 2 + 3 * PAT_OFFSET_Y;
+        } break;
     }
     draw_line(x0, y, x1, y, clr);
 }
@@ -578,16 +606,15 @@ draw_current_step(u8 col) {
 
 void
 draw_bank_buttons() {
-    size_t x = R_SIDEBAR_X + 5;
-    size_t y = PAT_START_Y;
+    size_t x = BANK_START_X;
+    size_t y = BANK_START_Y;
     txt_drawf_small("BANK", x - 2, y - 10, 4, COL_FG);
     char bank_names[] = {
         'A', 'B', 'C', 'D',
     };
     for (int i = 0; i < 4; i++) {
         int color = COL_GREY;
-        if (i == current_pattern) {
-            // TODO: current bank.
+        if (i == current_bank) {
             color = COL_FG;
         }
         draw_filled_rect(x, y, x + PAT_W, y + PAT_H, COL_BG);
@@ -1789,13 +1816,13 @@ handle_right_col_selection(void) {
         draw_note(trig->note, COL_NOTE_PRESSED);
         draw_parameters();
     } else if (key_tap(KEY_UP)) {
-        if (right_col_selection_loc <  2) {
+        if (right_col_selection_loc <  R_COL_BANK_A) {
             draw_right_col_cursor(COL_BG);
             right_col_selection_loc++;
             draw_right_col_cursor(COL_CURSOR);
         }
     } else if (key_tap(KEY_DOWN)) {
-        if (right_col_selection_loc > 0) {
+        if (right_col_selection_loc > R_COL_BPM) {
             draw_right_col_cursor(COL_BG);
             right_col_selection_loc--;
             draw_right_col_cursor(COL_CURSOR);
@@ -1834,6 +1861,25 @@ handle_right_col_selection(void) {
             case R_COL_PLAY: {
                 pause_playing();
             } break;
+            // TODO: stop playing
+            // TODO: reset cursors if applicable
+            // TODO: load bank from sram
+            case R_COL_BANK_A: {
+                current_bank = 0;
+                draw_bank_buttons();
+            } break;
+            case R_COL_BANK_B: {
+                current_bank = 1;
+                draw_bank_buttons();
+            } break;
+            case R_COL_BANK_C: {
+                current_bank = 2;
+                draw_bank_buttons();
+            } break;
+            case R_COL_BANK_D: {
+                current_bank = 3;
+                draw_bank_buttons();
+            } break;
         }
     }
 }
-- 
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