void clipboard_paste(void);
void clipboard_copy(void);

typedef enum ClipboardType {
    CLIP_EMPTY,
    CLIP_TRIG,
    CLIP_PARAM_CH1,
    CLIP_PARAM_CH2,
    CLIP_PARAM_CH3,
    CLIP_PARAM_CH4,
    CLIP_PATTERN,
    CLIP_CHANNEL,
} ClipboardType;

typedef struct Clipboard {
    ClipboardType type;
    u8 src_pat;
    u8 src_chan;
    u8 src_trig;
} Clipboard;

static Clipboard clipboard = {CLIP_EMPTY, 0, 0, 0};

void send_notif(char *msg);

void
clipboard_paste(void) {
    Pattern *pat_dst = &patterns[pattern_selection_loc];
    Pattern *pat_src = &patterns[clipboard.src_pat];

    if (input_handler == handle_trigger_selection) {
        if (clipboard.type == CLIP_TRIG) {
            // Copy notes or parameters when applicable.
            switch (clipboard.src_chan) {
                case 0: {
                    switch (channel_selection_loc) {
                        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];
                        } break;
                        case 1: {
                            pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
                            pat_dst->ch2.params[trig_selection_loc].env_volume = pat_src->ch1.params[clipboard.src_trig].env_volume;
                            pat_dst->ch2.params[trig_selection_loc].env_time = pat_src->ch1.params[clipboard.src_trig].env_time;
                            pat_dst->ch2.params[trig_selection_loc].env_direction = pat_src->ch1.params[clipboard.src_trig].env_direction;
                            pat_dst->ch2.params[trig_selection_loc].duty_cycle = pat_src->ch1.params[clipboard.src_trig].duty_cycle;
                            pat_dst->ch2.params[trig_selection_loc].prob = pat_src->ch1.params[clipboard.src_trig].prob;
                            pat_dst->ch2.params[trig_selection_loc].pan = pat_src->ch1.params[clipboard.src_trig].pan;
                        } break;
                        case 2: {
                            pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
                            pat_dst->ch3.params[trig_selection_loc].prob = pat_src->ch1.params[clipboard.src_trig].prob;
                            pat_dst->ch3.params[trig_selection_loc].pan = pat_src->ch1.params[clipboard.src_trig].pan;
                        } break;
                        case 3: {
                            pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch1.notes[clipboard.src_trig];
                            pat_dst->ch4.params[trig_selection_loc].prob = pat_src->ch1.params[clipboard.src_trig].prob;
                            pat_dst->ch4.params[trig_selection_loc].pan = pat_src->ch1.params[clipboard.src_trig].pan;
                        } break;
                    }
                } break;
                case 1: {
                    switch (channel_selection_loc) {
                        case 0: {
                            pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
                            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;
                            pat_dst->ch1.params[trig_selection_loc].prob = pat_src->ch2.params[clipboard.src_trig].prob;
                            pat_dst->ch1.params[trig_selection_loc].pan = pat_src->ch2.params[clipboard.src_trig].pan;
                        } 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];
                        } break;
                        case 2: {
                            pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
                            pat_dst->ch3.params[trig_selection_loc].prob = pat_src->ch2.params[clipboard.src_trig].prob;
                            pat_dst->ch3.params[trig_selection_loc].pan = pat_src->ch2.params[clipboard.src_trig].pan;
                        } break;
                        case 3: {
                            pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch2.notes[clipboard.src_trig];
                            pat_dst->ch4.params[trig_selection_loc].prob = pat_src->ch2.params[clipboard.src_trig].prob;
                            pat_dst->ch4.params[trig_selection_loc].pan = pat_src->ch2.params[clipboard.src_trig].pan;
                        } break;
                    }
                } break;
                case 2: {
                    switch (channel_selection_loc) {
                        case 0: {
                            pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
                            pat_dst->ch1.params[trig_selection_loc].prob = pat_src->ch3.params[clipboard.src_trig].prob;
                            pat_dst->ch1.params[trig_selection_loc].pan = pat_src->ch3.params[clipboard.src_trig].pan;
                        } break;
                        case 1: {
                            pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
                            pat_dst->ch2.params[trig_selection_loc].prob = pat_src->ch3.params[clipboard.src_trig].prob;
                            pat_dst->ch2.params[trig_selection_loc].pan = pat_src->ch3.params[clipboard.src_trig].pan;
                        } 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];
                        } break;
                        case 3: {
                            pat_dst->ch4.notes[trig_selection_loc] = pat_src->ch3.notes[clipboard.src_trig];
                            pat_dst->ch4.params[trig_selection_loc].prob = pat_src->ch3.params[clipboard.src_trig].prob;
                            pat_dst->ch4.params[trig_selection_loc].pan = pat_src->ch3.params[clipboard.src_trig].pan;
                        } break;
                    }
                } break;
                case 3: {
                    switch (channel_selection_loc) {
                        case 0: {
                            pat_dst->ch1.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
                            pat_dst->ch1.params[trig_selection_loc].prob = pat_src->ch4.params[clipboard.src_trig].prob;
                            pat_dst->ch1.params[trig_selection_loc].pan = pat_src->ch4.params[clipboard.src_trig].pan;
                        } break;
                        case 1: {
                            pat_dst->ch2.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
                            pat_dst->ch2.params[trig_selection_loc].prob = pat_src->ch4.params[clipboard.src_trig].prob;
                            pat_dst->ch2.params[trig_selection_loc].pan = pat_src->ch4.params[clipboard.src_trig].pan;
                        } break;
                        case 2: {
                            pat_dst->ch3.notes[trig_selection_loc] = pat_src->ch4.notes[clipboard.src_trig];
                            pat_dst->ch3.params[trig_selection_loc].prob = pat_src->ch4.params[clipboard.src_trig].prob;
                            pat_dst->ch3.params[trig_selection_loc].pan = pat_src->ch4.params[clipboard.src_trig].pan;
                        } 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];
                        } break;
                    }
                } break;
            }
            send_notif("PASTED NOTE & PARAMS");
        }
        // Only paste the params for the respective trigger.
        if (clipboard.type == CLIP_PARAM_CH1) {
            switch (channel_selection_loc) {
                case 0: {
                    pat_dst->ch1.params[trig_selection_loc] = pat_src->ch1.params[clipboard.src_trig];
                } break;
                case 1: {
                    pat_dst->ch2.params[trig_selection_loc].env_volume = pat_src->ch1.params[clipboard.src_trig].env_volume;
                    pat_dst->ch2.params[trig_selection_loc].env_time = pat_src->ch1.params[clipboard.src_trig].env_time;
                    pat_dst->ch2.params[trig_selection_loc].env_direction = pat_src->ch1.params[clipboard.src_trig].env_direction;
                    pat_dst->ch2.params[trig_selection_loc].duty_cycle = pat_src->ch1.params[clipboard.src_trig].duty_cycle;
                    pat_dst->ch2.params[trig_selection_loc].prob = pat_src->ch1.params[clipboard.src_trig].prob;
                    pat_dst->ch2.params[trig_selection_loc].pan = pat_src->ch1.params[clipboard.src_trig].pan;
                } break;
            }
            send_notif("PASTED PARAMS");
        }
        if (clipboard.type == CLIP_PARAM_CH2) {
            switch (channel_selection_loc) {
                case 0: {
                    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;
                    pat_dst->ch1.params[trig_selection_loc].prob = pat_src->ch2.params[clipboard.src_trig].prob;
                    pat_dst->ch1.params[trig_selection_loc].pan = pat_src->ch2.params[clipboard.src_trig].pan;
                } break;
                case 1: {
                    pat_dst->ch2.params[trig_selection_loc] = pat_src->ch2.params[clipboard.src_trig];
                } break;
            }
            send_notif("PASTED PARAMS");
        }
        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;
        pat_dst->ch1.params[trig_selection_loc].prob = pat_src->ch2.params[clipboard.src_trig].prob;
        pat_dst->ch1.params[trig_selection_loc].pan = pat_src->ch2.params[clipboard.src_trig].pan;
        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].env_volume = pat_src->ch1.params[clipboard.src_trig].env_volume;
        pat_dst->ch2.params[trig_selection_loc].env_time = pat_src->ch1.params[clipboard.src_trig].env_time;
        pat_dst->ch2.params[trig_selection_loc].env_direction = pat_src->ch1.params[clipboard.src_trig].env_direction;
        pat_dst->ch2.params[trig_selection_loc].duty_cycle = pat_src->ch1.params[clipboard.src_trig].duty_cycle;
        pat_dst->ch2.params[trig_selection_loc].prob = pat_src->ch1.params[clipboard.src_trig].prob;
        pat_dst->ch2.params[trig_selection_loc].pan = pat_src->ch1.params[clipboard.src_trig].pan;
        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
        // from a different pattern.
        if (clipboard.src_chan == channel_selection_loc) {
            switch (clipboard.src_chan) {
                case 0: { pat_dst->ch1 = pat_src->ch1; } break;
                case 1: { pat_dst->ch2 = pat_src->ch2; } break;
                case 2: { pat_dst->ch3 = pat_src->ch3; } break;
                case 3: { pat_dst->ch4 = pat_src->ch4; } break;
            }
        } else {
            switch (clipboard.src_chan) {
                case 0: {
                    switch (channel_selection_loc) {
                        case 0: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch1.notes[i] = pat_src->ch1.notes[i];
                                pat_dst->ch1.params[i] = pat_src->ch1.params[i];
                            }
                        } 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].env_volume = pat_src->ch1.params[i].env_volume;
                                pat_dst->ch2.params[i].env_time = pat_src->ch1.params[i].env_time;
                                pat_dst->ch2.params[i].env_direction = pat_src->ch1.params[i].env_direction;
                                pat_dst->ch2.params[i].duty_cycle = pat_src->ch1.params[i].duty_cycle;
                                pat_dst->ch2.params[i].prob = pat_src->ch1.params[i].prob;
                                pat_dst->ch2.params[i].pan = pat_src->ch1.params[i].pan;
                            }
                        } break;
                        case 2: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch3.notes[i] = pat_src->ch1.notes[i];
                                pat_dst->ch3.params[i].prob = pat_src->ch1.params[i].prob;
                                pat_dst->ch3.params[i].pan = pat_src->ch1.params[i].pan;
                            }
                        } break;
                        case 3: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch4.notes[i] = pat_src->ch1.notes[i];
                                pat_dst->ch4.params[i].prob = pat_src->ch1.params[i].prob;
                                pat_dst->ch4.params[i].pan = pat_src->ch1.params[i].pan;
                            }
                        } break;
                    }
                } break;
                case 1: {
                    switch (channel_selection_loc) {
                        case 0: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch1.notes[i] = pat_src->ch2.notes[i];
                                pat_dst->ch1.params[i].env_volume = pat_src->ch2.params[i].env_volume;
                                pat_dst->ch1.params[i].env_time = pat_src->ch2.params[i].env_time;
                                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;
                                pat_dst->ch1.params[i].prob = pat_src->ch2.params[i].prob;
                                pat_dst->ch1.params[i].pan = pat_src->ch2.params[i].pan;
                            }
                        } 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];
                            }
                        } break;
                        case 2: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch3.notes[i] = pat_src->ch2.notes[i];
                                pat_dst->ch3.params[i].prob = pat_src->ch2.params[i].prob;
                                pat_dst->ch3.params[i].pan = pat_src->ch2.params[i].pan;
                            }
                        } break;
                        case 3: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch4.notes[i] = pat_src->ch2.notes[i];
                                pat_dst->ch4.params[i].prob = pat_src->ch2.params[i].prob;
                                pat_dst->ch4.params[i].pan = pat_src->ch2.params[i].pan;
                            }
                        } break;
                    }
                } break;
                case 2: {
                    switch (channel_selection_loc) {
                        case 0: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch1.notes[i] = pat_src->ch3.notes[i];
                                pat_dst->ch1.params[i].prob = pat_src->ch3.params[i].prob;
                                pat_dst->ch1.params[i].pan = pat_src->ch3.params[i].pan;
                            }
                        } break;
                        case 1: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch2.notes[i] = pat_src->ch3.notes[i];
                                pat_dst->ch2.params[i].prob = pat_src->ch3.params[i].prob;
                                pat_dst->ch2.params[i].pan = pat_src->ch3.params[i].pan;
                            }
                        } 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];
                            }
                        } break;
                        case 3: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch4.notes[i] = pat_src->ch3.notes[i];
                                pat_dst->ch4.params[i].prob = pat_src->ch3.params[i].prob;
                                pat_dst->ch4.params[i].pan = pat_src->ch3.params[i].pan;
                            }
                        } break;
                    }
                } break;
                case 3: {
                    switch (channel_selection_loc) {
                        case 0: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch1.notes[i] = pat_src->ch4.notes[i];
                                pat_dst->ch1.params[i].prob = pat_src->ch4.params[i].prob;
                                pat_dst->ch1.params[i].pan = pat_src->ch4.params[i].pan;
                            }
                        } break;
                        case 1: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch2.notes[i] = pat_src->ch4.notes[i];
                                pat_dst->ch2.params[i].prob = pat_src->ch4.params[i].prob;
                                pat_dst->ch2.params[i].pan = pat_src->ch4.params[i].pan;
                            }
                        } break;
                        case 2: {
                            for (size_t i = 0; i < 16; i++) {
                                pat_dst->ch3.notes[i] = pat_src->ch4.notes[i];
                                pat_dst->ch3.params[i].prob = pat_src->ch4.params[i].prob;
                                pat_dst->ch3.params[i].pan = pat_src->ch4.params[i].pan;
                            }
                        } 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];
                            }
                        } break;
                    }
                } break;
            }
        }
        send_notif("PASTED NOTES & PARAMS");
        draw_channels();
        draw_triggers();
    } else if (input_handler == handle_channel_selection) {
        switch (channel_selection_loc) {
            case 0: {
                if (clipboard.type == CLIP_TRIG ||
                        clipboard.type == CLIP_PARAM_CH1 ||
                        clipboard.type == CLIP_PARAM_CH2) {
                    if (clipboard.src_chan == 0) {
                        ch1_params = pat_src->ch1.params[clipboard.src_trig];
                        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;
                        ch1_params.env_time = pat_src->ch2.params[clipboard.src_trig].env_time;
                        ch1_params.env_direction = pat_src->ch2.params[clipboard.src_trig].env_direction;
                        ch1_params.duty_cycle = pat_src->ch2.params[clipboard.src_trig].duty_cycle;
                        ch1_params.prob = pat_src->ch2.params[clipboard.src_trig].prob;
                        ch1_params.pan = pat_src->ch2.params[clipboard.src_trig].pan;
                        for (size_t i = 0; i < 16; i++) {
                            pat_dst->ch1.params[i].env_volume = pat_src->ch2.params[clipboard.src_trig].env_volume;
                            pat_dst->ch1.params[i].env_time = pat_src->ch2.params[clipboard.src_trig].env_time;
                            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;
                            pat_dst->ch1.params[i].prob = pat_src->ch2.params[clipboard.src_trig].prob;
                            pat_dst->ch1.params[i].pan = pat_src->ch2.params[clipboard.src_trig].pan;
                        }
                        send_notif("PASTED PARAMS");
                    }
                }
            } break;
            case 1: {
                if (clipboard.type == CLIP_TRIG ||
                        clipboard.type == CLIP_PARAM_CH1 ||
                        clipboard.type == CLIP_PARAM_CH2) {
                    if (clipboard.src_chan == 0) {
                        ch2_params.env_volume = pat_src->ch1.params[clipboard.src_trig].env_volume;
                        ch2_params.env_time = pat_src->ch1.params[clipboard.src_trig].env_time;
                        ch2_params.env_direction = pat_src->ch1.params[clipboard.src_trig].env_direction;
                        ch2_params.duty_cycle = pat_src->ch1.params[clipboard.src_trig].duty_cycle;
                        ch2_params.prob = pat_src->ch1.params[clipboard.src_trig].prob;
                        ch2_params.pan = pat_src->ch1.params[clipboard.src_trig].pan;
                        for (size_t i = 0; i < 16; i++) {
                            pat_dst->ch2.params[i].env_volume = pat_src->ch1.params[clipboard.src_trig].env_volume;
                            pat_dst->ch2.params[i].env_time = pat_src->ch1.params[clipboard.src_trig].env_time;
                            pat_dst->ch2.params[i].env_direction = pat_src->ch1.params[clipboard.src_trig].env_direction;
                            pat_dst->ch2.params[i].duty_cycle = pat_src->ch1.params[clipboard.src_trig].duty_cycle;
                            pat_dst->ch2.params[i].prob = pat_src->ch1.params[clipboard.src_trig].prob;
                            pat_dst->ch2.params[i].pan = pat_src->ch1.params[clipboard.src_trig].pan;
                        }
                        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;
            case 2: {
                if (clipboard.src_chan != channel_selection_loc) {
                    return;
                }
                if (clipboard.type == CLIP_TRIG || clipboard.type == CLIP_PARAM_CH3) {
                    ch3_params = pat_src->ch3.params[clipboard.src_trig];
                    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: {
                if (clipboard.src_chan != channel_selection_loc) {
                    return;
                }
                if (clipboard.type == CLIP_TRIG || clipboard.type == CLIP_PARAM_CH4) {
                    ch4_params = pat_src->ch4.params[clipboard.src_trig];
                    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;
        }
    } else if (input_handler == handle_pattern_selection && clipboard.type == CLIP_PATTERN) {
        // Copy an entire pattern.
        if (pattern_selection_loc != clipboard.src_pat) {
            *pat_dst = *pat_src;
            draw_channels();
            draw_triggers();
            send_notif("PASTED PATTERN");
        }
    }
}

void
clipboard_copy(void) {
    if (input_handler == handle_trigger_selection) {
        clipboard.type = CLIP_TRIG;
        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");
    }
}