Add new parameter UI for square channels

1 files changed, 194 insertions, 264 deletions

diff --git a/src/drawing.c b/src/drawing.c
index c596995..f843cb1 100644
--- a/src/drawing.c
+++ b/src/drawing.c
@@ -3,6 +3,28 @@
 //
 
 void
+draw_param_stub(size_t idx, u8 color) {
+    if (idx >= 10) {
+        return;
+    }
+    u8 x0 = PARAMS_START_X + (idx % 5) * PARAMS_BOX_OFFSET_X;
+    u8 x1 = x0 + PARAMS_BOX_W;
+    u8 y0 = PARAMS_START_Y;
+    if (idx >= 5) {
+        y0 += PARAMS_BOX_OFFSET_Y;
+    }
+    u8 y1 = y0 + PARAMS_BOX_H;
+    for (size_t i = 0; i < PARAMS_BOX_W; i += 2) {
+        draw_pixel(x0 + i + 1, y0, color);
+        draw_pixel(x0 + i + 1, y1, color);
+    }
+    for (size_t i = 0; i < PARAMS_BOX_H; i += 2) {
+        draw_pixel(x0, y0 + i + 1, color);
+        draw_pixel(x1, y0 + i + 1, color);
+    }
+}
+
+void
 draw_channel_sprite(size_t x, size_t y, u8 clr, u8 idx) {
     draw_icn(x,      y,  &ch_btn_sprite[0 + 6 * idx], clr, 0, 0);
     draw_icn(x + 8,  y,  &ch_btn_sprite[2 + 6 * idx], clr, 0, 0);
@@ -595,10 +617,10 @@ draw_wave_pattern(u8 *pattern, int x, int y, u8 clr) {
 IWRAM_CODE
 void
 clear_parameters(void) {
-    size_t x0 = PARAMS_START_X -1;
+    size_t x0 = PARAMS_START_X;
     size_t y0 = PARAMS_START_Y;
     size_t x1 = PARAMS_START_X + PARAMS_W;
-    size_t y1 = PARAMS_START_Y + PARAMS_H - 1;
+    size_t y1 = PARAMS_START_Y + PARAMS_H;
     draw_filled_rect(x0, y0, x1, y1, COL_BG);
 }
 
@@ -700,272 +722,176 @@ draw_parameters_wave(ChannelWaveParams *params, bool global) {
 
 void
 draw_parameters_square(ChannelSquareParams *params, bool sweep, bool global) {
-    size_t x_offset = sweep ? 0 : 30;
     u8 col_fg = COL_FG;
     if (global && input_handler == handle_channel_selection) {
         col_fg = COL_OFF;
     }
 
-    // Duty cycle.
+    // Duty cycle / shape.
     {
-        // Shape drawing.
-        {
-            size_t x = PARAMS_START_X + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 43;
-
-            size_t x0 = x + 2;
-            size_t x1 = x0;
-            size_t x2 = x0;
-            size_t x3 = x0;
-            size_t x4 = x0;
-            size_t x5 = x0;
-            size_t y0 = y + 14;
-            size_t y1 = y + 2;
-
-            switch (params->duty_cycle) {
-                case 0: {
-                    x1 += 4;
-                    x2 += 6;
-                    x3 += 13;
-                    x4 += 15;
-                    x5 += 20;
-                } break;
-                case 1: {
-                    x1 += 4;
-                    x2 += 7;
-                    x3 += 13;
-                    x4 += 16;
-                    x5 += 20;
-                } break;
-                case 2: {
-                    x1 += 3;
-                    x2 += 8;
-                    x3 += 12;
-                    x4 += 17;
-                    x5 += 20;
-                } break;
-                case 3: {
-                    x1 += 2;
-                    x2 += 9;
-                    x3 += 11;
-                    x4 += 18;
-                    x5 += 20;
-                } break;
-            }
-            draw_line(x0, y0, x1, y0, COL_ACC_1);
-            draw_line(x1, y1, x1, y0, COL_ACC_1);
-            draw_line(x1, y1, x2, y1, COL_ACC_1);
-            draw_line(x2, y1, x2, y0, COL_ACC_1);
-            draw_line(x2, y0, x3, y0, COL_ACC_1);
-            draw_line(x3, y1, x3, y0, COL_ACC_1);
-            draw_line(x3, y1, x4, y1, COL_ACC_1);
-            draw_line(x4, y1, x4, y0, COL_ACC_1);
-            draw_line(x4, y0, x5, y0, COL_ACC_1);
-
-            // Bounding box.
-            draw_rect(x, y - 3, x + 24, y + 18, COL_ACC_1);
-        }
-
-        // Param box.
-        {
-            size_t x = PARAMS_START_X + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 26;
-            draw_line(x, y + 7, x + 2, y + 7, col_fg);
-            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
-            draw_line(x, y + 8, x, y + 19, col_fg);
-            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-            draw_line(x, y + 20, x + 24, y + 20, col_fg);
-            txt_drawf_small("duty", x + 3, y + 3, col_fg);
-
-            switch (params->duty_cycle) {
-                case 0: { txt_drawf("12", x + 6, y + 10, col_fg); } break;
-                case 1: { txt_drawf("25", x + 6, y + 10, col_fg); } break;
-                case 2: { txt_drawf("50", x + 6, y + 10, col_fg); } break;
-                case 3: { txt_drawf("75", x + 6, y + 10, col_fg); } break;
-            }
+        size_t x = PARAMS_START_X + 3;
+        size_t y = PARAMS_START_Y + 1;
+
+        size_t x0 = x + 2;
+        size_t x1 = x0;
+        size_t x2 = x0;
+        size_t x3 = x0;
+        size_t x4 = x0;
+        size_t x5 = x0;
+        size_t y0 = y + 14;
+        size_t y1 = y + 2;
+
+        switch (params->duty_cycle) {
+            case 0: {
+                x1 += 4;
+                x2 += 6;
+                x3 += 13;
+                x4 += 15;
+                x5 += 20;
+            } break;
+            case 1: {
+                x1 += 4;
+                x2 += 7;
+                x3 += 13;
+                x4 += 16;
+                x5 += 20;
+            } break;
+            case 2: {
+                x1 += 3;
+                x2 += 8;
+                x3 += 12;
+                x4 += 17;
+                x5 += 20;
+            } break;
+            case 3: {
+                x1 += 2;
+                x2 += 9;
+                x3 += 11;
+                x4 += 18;
+                x5 += 20;
+            } break;
         }
+        draw_line(x0, y0, x1, y0, COL_ACC_1);
+        draw_line(x1, y1, x1, y0, COL_ACC_1);
+        draw_line(x1, y1, x2, y1, COL_ACC_1);
+        draw_line(x2, y1, x2, y0, COL_ACC_1);
+        draw_line(x2, y0, x3, y0, COL_ACC_1);
+        draw_line(x3, y1, x3, y0, COL_ACC_1);
+        draw_line(x3, y1, x4, y1, COL_ACC_1);
+        draw_line(x4, y1, x4, y0, COL_ACC_1);
+        draw_line(x4, y0, x5, y0, COL_ACC_1);
     }
 
     // Envelope.
     {
-        // Env. drawing.
-        {
-            // Bounding box.
-            {
-                size_t x0 = PARAMS_START_X + 31 + x_offset;
-                size_t y0 = PARAMS_START_Y + PARAMS_H - 46;
-                size_t x1 = x0 + 79;
-                size_t y1 = y0 + 21;
-                draw_rect(x0, y0, x1, y1, COL_ACC_2);
-            }
-
-            size_t x = PARAMS_START_X + 42 + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 43;
-            size_t x0 = x;
-            size_t y0 = y + 15 - params->env_volume;
-            size_t x1 = x + 8 * params->env_time;
-            size_t y1 = params->env_direction == 0 ? y + 15 : y;
-            size_t x2 = x + 8 * 7 + 1;
-            size_t y2 = y1;
-
-            // Env.
-            if (params->env_time == 0) {
-                draw_line(x1, y0, x2, y0, COL_ACC_2);
-            } else {
-                draw_line(x0, y0, x1, y1, COL_ACC_2);
-                draw_line(x1, y1, x2, y2, COL_ACC_2);
-            }
-        }
-
-        // Env. volume.
-        {
-            size_t x = PARAMS_START_X + 31 + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 26;
-            draw_line(x, y + 7, x + 4, y + 7, col_fg);
-            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
-            draw_line(x, y + 8, x, y + 19, col_fg);
-            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-            draw_line(x, y + 20, x + 24, y + 20, col_fg);
-            txt_drawf_small("vol", x + 5, y + 3, col_fg);
-
-            switch (params->env_volume) {
-                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
-                case 1: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
-                case 2: { txt_drawf("13", x + 6, y + 10, col_fg); } break;
-                case 3: { txt_drawf("20", x + 6, y + 10, col_fg); } break;
-                case 4: { txt_drawf("26", x + 6, y + 10, col_fg); } break;
-                case 5: { txt_drawf("33", x + 6, y + 10, col_fg); } break;
-                case 6: { txt_drawf("40", x + 6, y + 10, col_fg); } break;
-                case 7: { txt_drawf("46", x + 6, y + 10, col_fg); } break;
-                case 8: { txt_drawf("53", x + 6, y + 10, col_fg); } break;
-                case 9: { txt_drawf("60", x + 6, y + 10, col_fg); } break;
-                case 10: { txt_drawf("66", x + 6, y + 10, col_fg); } break;
-                case 11: { txt_drawf("73", x + 6, y + 10, col_fg); } break;
-                case 12: { txt_drawf("80", x + 6, y + 10, col_fg); } break;
-                case 13: { txt_drawf("86", x + 6, y + 10, col_fg); } break;
-                case 14: { txt_drawf("93", x + 6, y + 10, col_fg); } break;
-                case 15: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
-            }
-        }
-
-        // Env. direction
-        {
-            size_t x = PARAMS_START_X + 59 + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 26;
-            draw_line(x, y + 7, x + 4, y + 7, col_fg);
-            draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
-            draw_line(x, y + 8, x, y + 19, col_fg);
-            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-            draw_line(x, y + 20, x + 24, y + 20, col_fg);
-            txt_drawf_small("dir", x + 5, y + 3, col_fg);
-
-            char arr_up[2] = { 0x19, 0 };
-            char arr_down[2] = { 0x18, 0 };
-            switch (params->env_direction) {
-                case 0: { txt_drawf(arr_up, x + 9, y + 11, col_fg); } break;
-                case 1: { txt_drawf(arr_down, x + 9, y + 11, col_fg); } break;
-            }
+        size_t x = PARAMS_START_X + PARAMS_BOX_OFFSET_X * 1 + 1;
+        size_t y = PARAMS_START_Y + 1;
+        size_t x0 = x;
+        size_t y0 = y + 15 - params->env_volume;
+        size_t x1 = x + (3 * PARAMS_BOX_OFFSET_X) * params->env_time / 8 + 7;
+        size_t y1 = params->env_direction == 0 ? y + 15 : y;
+        size_t x2 = x + PARAMS_BOX_OFFSET_X * 3 - 5;
+        size_t y2 = y1;
+
+        // Env.
+        if (params->env_time == 0) {
+            // TODO: Time 0 vol 0 (dir) doesn't make sense (mute)
+            // TODO: Time 0 vol 100 doesn't make sense (constant max volume)
+            // NOTE: Maybe it's just a matter of handling it better on the
+            // control? Have to check every time we change direction to swap
+            // the conditions.
+            draw_line(x0, y0, x2, y0, COL_ACC_2);
+        } else {
+            draw_line(x0, y0, x1, y1, COL_ACC_2);
+            draw_line(x1, y1, x2, y2, COL_ACC_2);
         }
+    }
 
-        // Env. time.
-        {
-            size_t x = PARAMS_START_X + 87 + x_offset;
-            size_t y = PARAMS_START_Y + PARAMS_H - 26;
-            draw_line(x, y + 7, x + 2, y + 7, col_fg);
-            draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
-            draw_line(x, y + 8, x, y + 19, col_fg);
-            draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-            draw_line(x, y + 20, x + 24, y + 20, col_fg);
-            txt_drawf_small("time", x + 3, y + 3, col_fg);
-
-            switch (params->env_time) {
-                case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
-                case 1: { txt_drawf("14", x + 6, y + 10, col_fg); } break;
-                case 2: { txt_drawf("28", x + 6, y + 10, col_fg); } break;
-                case 3: { txt_drawf("42", x + 6, y + 10, col_fg); } break;
-                case 4: { txt_drawf("57", x + 6, y + 10, col_fg); } break;
-                case 5: { txt_drawf("71", x + 6, y + 10, col_fg); } break;
-                case 6: { txt_drawf("85", x + 6, y + 10, col_fg); } break;
-                case 7: { txt_drawf("100", x + 3, y + 10, col_fg); } break;
-            }
-        }
+    // TODO: Trig probability
+    {
+        size_t x = PARAMS_START_X + PARAMS_BOX_OFFSET_X * 4 + 3;
+        size_t y = PARAMS_START_Y + 5;
+        txt_drawf("100", x, y, col_fg);
+        txt_drawc('%', x + 18, y, col_fg);
     }
 
-    // Sweep number.
+    // Sweep.
     if (sweep) {
-        size_t x = PARAMS_START_X + 118;
-        size_t y = PARAMS_START_Y + PARAMS_H - 26;
-        draw_line(x, y + 7, x + 4, y + 7, col_fg);
-        draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
-        draw_line(x, y + 8, x, y + 19, col_fg);
-        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-        draw_line(x, y + 20, x + 24, y + 20, col_fg);
-        txt_drawf_small("num", x + 5, y + 3, col_fg);
-
+        size_t x = PARAMS_START_X;
+        size_t y = PARAMS_START_Y + PARAMS_BOX_OFFSET_Y;
+
+        // Bounding box.
+        u8 x0 = x + 1;
+        u8 x1 = x + PARAMS_BOX_OFFSET_X * 3 - 5;
+        u8 y0 = y + 2;
+        u8 y1 = y + PARAMS_BOX_H - 8;
+        draw_line(x0, y0, x1, y0, col_fg);
+        draw_line(x0, y1, x1, y1, col_fg);
+        draw_line(x0 - 1, y0 + 1, x0 - 1, y1 - 1, col_fg);
+        draw_line(x1 + 1, y0 + 1, x1 + 1, y1 - 1, col_fg);
+
+        // Number.
         switch (params->sweep_number) {
-            case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
-            case 1: { txt_drawf("1", x + 9, y + 10, col_fg); } break;
-            case 2: { txt_drawf("2", x + 9, y + 10, col_fg); } break;
-            case 3: { txt_drawf("3", x + 9, y + 10, col_fg); } break;
-            case 4: { txt_drawf("4", x + 9, y + 10, col_fg); } break;
-            case 5: { txt_drawf("5", x + 9, y + 10, col_fg); } break;
-            case 6: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
-            case 7: { txt_drawf("7", x + 9, y + 10, col_fg); } break;
+            case 0: { txt_drawf("0", x + 12, y + 5, col_fg); } break;
+            case 1: { txt_drawf("1", x + 12, y + 5, col_fg); } break;
+            case 2: { txt_drawf("2", x + 12, y + 5, col_fg); } break;
+            case 3: { txt_drawf("3", x + 12, y + 5, col_fg); } break;
+            case 4: { txt_drawf("4", x + 12, y + 5, col_fg); } break;
+            case 5: { txt_drawf("5", x + 12, y + 5, col_fg); } break;
+            case 6: { txt_drawf("6", x + 12, y + 5, col_fg); } break;
+            case 7: { txt_drawf("7", x + 12, y + 5, col_fg); } break;
         }
-    }
-
-    // Sweep time.
-    if (sweep) {
-        size_t x = PARAMS_START_X + 146;
-        size_t y = PARAMS_START_Y + PARAMS_H - 26;
-        draw_line(x, y + 7, x + 2, y + 7, col_fg);
-        draw_line(x + 22, y + 7, x + 24, y + 7, col_fg);
-        draw_line(x, y + 8, x, y + 19, col_fg);
-        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-        draw_line(x, y + 20, x + 24, y + 20, col_fg);
-        txt_drawf_small("time", x + 3, y + 3, col_fg);
 
+        // Time.
+        x += PARAMS_BOX_OFFSET_X;
         switch (params->sweep_time) {
-            case 0: { txt_drawf("0", x + 9, y + 10, col_fg); } break;
-            case 1: { txt_drawf("1", x + 9, y + 10, col_fg); } break;
-            case 2: { txt_drawf("2", x + 9, y + 10, col_fg); } break;
-            case 3: { txt_drawf("3", x + 9, y + 10, col_fg); } break;
-            case 4: { txt_drawf("4", x + 9, y + 10, col_fg); } break;
-            case 5: { txt_drawf("5", x + 9, y + 10, col_fg); } break;
-            case 6: { txt_drawf("6", x + 9, y + 10, col_fg); } break;
-            case 7: { txt_drawf("7", x + 9, y + 10, col_fg); } break;
+            case 0: { txt_drawf("0", x + 12, y + 5, col_fg); } break;
+            case 1: { txt_drawf("1", x + 12, y + 5, col_fg); } break;
+            case 2: { txt_drawf("2", x + 12, y + 5, col_fg); } break;
+            case 3: { txt_drawf("3", x + 12, y + 5, col_fg); } break;
+            case 4: { txt_drawf("4", x + 12, y + 5, col_fg); } break;
+            case 5: { txt_drawf("5", x + 12, y + 5, col_fg); } break;
+            case 6: { txt_drawf("6", x + 12, y + 5, col_fg); } break;
+            case 7: { txt_drawf("7", x + 12, y + 5, col_fg); } break;
         }
-    }
-
-    // Sweep direction.
-    if (sweep) {
-        size_t x = PARAMS_START_X + 132;
-        size_t y = PARAMS_START_Y + PARAMS_H - 46;
-        draw_line(x, y + 7, x + 4, y + 7, col_fg);
-        draw_line(x + 20, y + 7, x + 24, y + 7, col_fg);
-        draw_line(x, y + 8, x, y + 19, col_fg);
-        draw_line(x + 24, y + 8, x + 24, y + 19, col_fg);
-        draw_line(x, y + 20, x + 24, y + 20, col_fg);
-        txt_drawf_small("dir", x + 5, y + 3, col_fg);
 
-        char arr_up[2] = { 0x19, 0 };
-        char arr_down[2] = { 0x18, 0 };
+        // Direction.
+        x += PARAMS_BOX_OFFSET_X;
+        char arr_down[2] = { 0x19, 0 };
+        char arr_up[2] = { 0x18, 0 };
         switch (params->sweep_direction) {
-            case 0: { txt_drawf(arr_up, x + 9, y + 11, col_fg); } break;
-            case 1: { txt_drawf(arr_down, x + 9, y + 11, col_fg); } break;
+            case 0: { txt_drawf(arr_up, x + 12, y + 5, col_fg); } break;
+            case 1: { txt_drawf(arr_down, x + 12, y + 5, col_fg); } break;
         }
     }
 
     // Labels.
     {
-        size_t x = PARAMS_START_X + x_offset;
-        size_t y = PARAMS_START_Y + PARAMS_H - 43;
-        txt_drawf_small("shape", x + 1, y - 12, col_fg);
-        txt_drawf_small("envelope", x + 54, y - 12, col_fg);
+        size_t x = PARAMS_START_X;
+        size_t y = PARAMS_START_Y;
+        txt_drawf_small("shape", x + 4 + PARAMS_BOX_OFFSET_X * 0, y + PARAMS_BOX_H - 7, col_fg);
+        txt_drawf_small("vol", x + 8 + PARAMS_BOX_OFFSET_X * 1, y + PARAMS_BOX_H - 7, col_fg);
+        txt_drawf_small("time", x + 6 + PARAMS_BOX_OFFSET_X * 2, y + PARAMS_BOX_H - 7, col_fg);
+        txt_drawf_small("dir", x + 8 + PARAMS_BOX_OFFSET_X * 3, y + PARAMS_BOX_H - 7, col_fg);
+        txt_drawf_small("prob", x + 6 + PARAMS_BOX_OFFSET_X * 4, y + PARAMS_BOX_H - 7, col_fg);
+        y += PARAMS_BOX_OFFSET_Y;
         if (sweep) {
-            txt_drawf_small("sweep", x + 133, y - 12, col_fg);
+            txt_drawf_small("sweep", x + 4 + PARAMS_BOX_OFFSET_X * 0, y + PARAMS_BOX_H - 7, col_fg);
+            txt_drawf_small("time", x + 6 + PARAMS_BOX_OFFSET_X * 1, y + PARAMS_BOX_H - 7, col_fg);
+            txt_drawf_small("dir", x + 8 + PARAMS_BOX_OFFSET_X * 2, y + PARAMS_BOX_H - 7, col_fg);
         }
     }
+
+    // Empty spacers.
+    {
+        if (!sweep) {
+            draw_param_stub(5, COL_OFF);
+            draw_param_stub(6, COL_OFF);
+            draw_param_stub(7, COL_OFF);
+        }
+        draw_param_stub(8, COL_OFF);
+        draw_param_stub(9, COL_OFF);
+    }
 }
 
 void
@@ -1117,34 +1043,38 @@ void
 draw_parameters(void) {
     clear_parameters();
     Pattern *pat = &patterns[pattern_selection_loc];
-    draw_rect(PARAMS_START_X, PARAMS_START_Y, PARAMS_START_X + PARAMS_W, PARAMS_START_Y + PARAMS_H, COL_OFF);
-    // DEBUG: Drawing the reference grid
-    // if (input_handler == handle_trigger_selection ||
-    //         input_handler == handle_param_selection_sq1 ||
-    //         input_handler == handle_param_selection_sq2 ||
-    //         input_handler == handle_param_selection_wave ||
-    //         input_handler == handle_param_selection_noise) {
-    //     switch (channel_selection_loc) {
-    //         case 0: { draw_parameters_square(&pat->ch1.params[trig_selection_loc], true, false); } break;
-    //         case 1: { draw_parameters_square(&pat->ch2.params[trig_selection_loc], false, false); } break;
-    //         case 2: { draw_parameters_wave(&pat->ch3.params[trig_selection_loc], false); } break;
-    //         case 3: { draw_parameters_noise(&pat->ch4.params[trig_selection_loc], false); } break;
-    //     }
-    //     return;
-    // }
-    // if (input_handler == handle_channel_selection ||
-    //         input_handler == handle_param_selection_ch1 ||
-    //         input_handler == handle_param_selection_ch2 ||
-    //         input_handler == handle_param_selection_ch3 ||
-    //         input_handler == handle_param_selection_ch4) {
-    //     switch (channel_selection_loc) {
-    //         case 0: { draw_parameters_square(&ch1_params, true, true); } break;
-    //         case 1: { draw_parameters_square(&ch2_params, false, true); } break;
-    //         case 2: { draw_parameters_wave(&ch3_params, true); } break;
-    //         case 3: { draw_parameters_noise(&ch4_params, true); } break;
-    //     }
-    //     return;
+    // DEBUG: Draw the parameter window
+    // draw_rect(PARAMS_START_X, PARAMS_START_Y, PARAMS_START_X + PARAMS_W, PARAMS_START_Y + PARAMS_H, COL_OFF);
+    // DEBUG: Drawing the reference grid overlay
+    // for (size_t i = 0; i < 10; i++) {
+    //     draw_param_stub(i, COL_OFF);
     // }
+    if (input_handler == handle_trigger_selection ||
+            input_handler == handle_param_selection_sq1 ||
+            input_handler == handle_param_selection_sq2 ||
+            input_handler == handle_param_selection_wave ||
+            input_handler == handle_param_selection_noise) {
+        switch (channel_selection_loc) {
+            case 0: { draw_parameters_square(&pat->ch1.params[trig_selection_loc], true, false); } break;
+            case 1: { draw_parameters_square(&pat->ch2.params[trig_selection_loc], false, false); } break;
+            case 2: { draw_parameters_wave(&pat->ch3.params[trig_selection_loc], false); } break;
+            case 3: { draw_parameters_noise(&pat->ch4.params[trig_selection_loc], false); } break;
+        }
+        return;
+    }
+    if (input_handler == handle_channel_selection ||
+            input_handler == handle_param_selection_ch1 ||
+            input_handler == handle_param_selection_ch2 ||
+            input_handler == handle_param_selection_ch3 ||
+            input_handler == handle_param_selection_ch4) {
+        switch (channel_selection_loc) {
+            case 0: { draw_parameters_square(&ch1_params, true, true); } break;
+            case 1: { draw_parameters_square(&ch2_params, false, true); } break;
+            case 2: { draw_parameters_wave(&ch3_params, true); } break;
+            case 3: { draw_parameters_noise(&ch4_params, true); } break;
+        }
+        return;
+    }
 }
 
 void