Files
voice-cat/clients/windows/VoiceCat.App/Forms/MainForm.Designer.cs
Talon 63b241cc2e feat(M4): Windows WinForms client, TOFU identity pinning, VAD threshold + always-on mode
Core ABI extensions (voicecat.h):
- vc_list_channels / vc_list_users / vc_list_user_streams — pull-based snapshot getters
  for the channel-tree and user-list UI; session_model_mu_ guards cross-thread reads
- VC_EVENT_JOIN_RESULT / vc_join_channel — channel join with optional password
- VC_EVENT_SERVER_IDENTITY + vc_confirm_server_identity — TOFU gate that blocks io_thread_
  until the UI approves or rejects; pins TLS leaf-cert SHA-256 (not declared Ed25519)
- vc_get_server_identity_display — Ed25519 fingerprint for human-readable display only
- VC_INPUT_ALWAYS_ON = 2 in vc_input_mode — transmit unconditionally, no VAD gate
- vc_set_vad_threshold — live RMS threshold update (0.0–1.0); EnergyVadProcessor stores
  it atomically so the audio RT path reads without a lock

C++ implementation:
- SessionModel::apply_snapshot / apply_channel_event fixed to populate parent_id,
  password_protected, and max_users (were permanently zeroed)
- TlsContext::peer_cert_fingerprint — SHA-256 of peer leaf cert DER via mbedTLS
- TofuStore split into peek (read-only) + pin (write) so first-connect only persists
  after user approval; tofu_store_path in vc_config for per-user pin file location
- TcpAcceptor uses dual-stack IPv6+IPv4 fallback (fixes localhost → ::1 on Windows)
- windows-client CMake preset: Release shared DLL, static MinGW runtime, no tools/tests
- New C++ tests: test_channel_user_list_abi, test_tofu_flow (14/14 green)

Windows client (clients/windows/ — .NET 10 WinForms):
- VoiceCat.Interop: LibraryImport P/Invoke surface, UnmanagedCallersOnly callbacks,
  Channel<VoiceCatEvent> event delivery drained by 30ms WinForms Timer
- VoiceCat.App: ConnectDialog (saved servers, DPAPI password storage), ServerIdentity-
  Dialog (TOFU first-connect / mismatch warning), MainForm (channel TreeView, user
  ListBox, RichTextBox chat, voice controls, device pickers, VAD/PTT/always-on mode,
  per-user gain/mute/NR tuning, VAD sensitivity TrackBar, level meter ProgressBar)
- PttKeyCaptureDialog — focus-scoped PTT key capture (documented limitation)
- PerUserTuningDialog — real-time gain/mute/NR applied to all of a user's streams
- Accessibility: explicit AccessibleName/Description on every control, & mnemonics,
  Activity log ListBox as durable screen-reader record, AutomationNotification for
  curated live announcements

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-17 00:35:16 +02:00

365 lines
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C#
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namespace VoiceCat.App.Forms;
partial class MainForm
{
private System.ComponentModel.IContainer components = null!;
// Status bar
private Label lblStatus = null!;
// Main left/right split
private SplitContainer splitMain = null!;
// Left panel: channel tree on top, user list on bottom
private SplitContainer splitLeft = null!;
private Label lblChannels = null!;
private TreeView tvChannels = null!;
private Label lblUsers = null!;
private ListBox lstUsers = null!;
// Right panel: chat transcript, compose row, activity log
private TableLayoutPanel tblRight = null!;
private Label lblChat = null!;
private RichTextBox rtbChat = null!;
private TableLayoutPanel tblCompose = null!;
private ComboBox cboScope = null!;
private TextBox txtCompose = null!;
private Button btnSend = null!;
private Label lblActivity = null!;
private ListBox lstActivity = null!;
// Voice control panel (docked Bottom)
private Panel pnlVoice = null!;
private FlowLayoutPanel flpVoiceTop = null!;
private FlowLayoutPanel flpVoiceBottom = null!;
private Button btnMicToggle = null!;
private CheckBox chkMute = null!;
private CheckBox chkDeafen = null!;
private RadioButton radioVad = null!;
private RadioButton radioPtt = null!;
private RadioButton radioAlwaysOn = null!;
private Label lblPttKey = null!;
private Button btnChangePtt = null!;
private Label lblInputDevice = null!;
private ComboBox cboInputDevice = null!;
private Button btnRefreshDevices = null!;
private Label lblLevel = null!;
private ProgressBar pbLevel = null!;
private Label lblVadThreshold = null!;
private TrackBar trkVadThreshold = null!;
protected override void Dispose(bool disposing)
{
if (disposing) components?.Dispose();
base.Dispose(disposing);
}
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
lblStatus = new Label();
splitMain = new SplitContainer();
splitLeft = new SplitContainer();
lblChannels = new Label();
tvChannels = new TreeView();
lblUsers = new Label();
lstUsers = new ListBox();
tblRight = new TableLayoutPanel();
lblChat = new Label();
rtbChat = new RichTextBox();
tblCompose = new TableLayoutPanel();
cboScope = new ComboBox();
txtCompose = new TextBox();
btnSend = new Button();
lblActivity = new Label();
lstActivity = new ListBox();
pnlVoice = new Panel();
flpVoiceTop = new FlowLayoutPanel();
flpVoiceBottom = new FlowLayoutPanel();
btnMicToggle = new Button();
chkMute = new CheckBox();
chkDeafen = new CheckBox();
radioVad = new RadioButton();
radioPtt = new RadioButton();
radioAlwaysOn = new RadioButton();
lblPttKey = new Label();
btnChangePtt = new Button();
lblInputDevice = new Label();
cboInputDevice = new ComboBox();
btnRefreshDevices = new Button();
lblLevel = new Label();
pbLevel = new ProgressBar();
lblVadThreshold = new Label();
trkVadThreshold = new TrackBar();
// ── Status label ──────────────────────────────────────────────────────
lblStatus.AccessibleName = "Connection status";
lblStatus.Dock = DockStyle.Top;
lblStatus.AutoSize = true;
lblStatus.Padding = new Padding(6, 4, 6, 4);
lblStatus.TabIndex = 0;
lblStatus.Text = "Connecting...";
// ── Channel tree ──────────────────────────────────────────────────────
lblChannels.Text = "Channels:";
lblChannels.Dock = DockStyle.Top;
lblChannels.AutoSize = true;
lblChannels.Padding = new Padding(4, 4, 4, 2);
tvChannels.AccessibleName = "Channel list";
tvChannels.AccessibleDescription =
"Double-click or press Enter to join a channel. " +
"Channels marked [password] require a password.";
tvChannels.Dock = DockStyle.Fill;
tvChannels.HideSelection = false;
tvChannels.TabIndex = 0;
// ── User list ─────────────────────────────────────────────────────────
lblUsers.Text = "Users in channel:";
lblUsers.Dock = DockStyle.Top;
lblUsers.AutoSize = true;
lblUsers.Padding = new Padding(4, 4, 4, 2);
lstUsers.AccessibleName = "Users in current channel";
lstUsers.AccessibleDescription =
"People in the same channel. Double-click or press Enter for per-user volume settings. " +
"Talking users are marked (talking).";
lstUsers.Dock = DockStyle.Fill;
lstUsers.TabIndex = 1;
// ── Left split (channels top, users bottom) ───────────────────────────
splitLeft.Orientation = Orientation.Horizontal;
splitLeft.Dock = DockStyle.Fill;
splitLeft.Panel1MinSize = 100;
splitLeft.Panel2MinSize = 80;
splitLeft.TabIndex = 0;
splitLeft.Panel1.Controls.Add(tvChannels);
splitLeft.Panel1.Controls.Add(lblChannels);
splitLeft.Panel2.Controls.Add(lstUsers);
splitLeft.Panel2.Controls.Add(lblUsers);
// ── Chat transcript ───────────────────────────────────────────────────
lblChat.Text = "Chat:";
lblChat.AutoSize = true;
lblChat.Padding = new Padding(2, 2, 2, 1);
rtbChat.AccessibleName = "Chat transcript";
rtbChat.AccessibleDescription = "History of channel and private messages.";
rtbChat.Dock = DockStyle.Fill;
rtbChat.ReadOnly = true;
rtbChat.ScrollBars = RichTextBoxScrollBars.Vertical;
rtbChat.BackColor = SystemColors.Window;
rtbChat.TabIndex = 0;
// ── Compose row ───────────────────────────────────────────────────────
cboScope.AccessibleName = "Send to";
cboScope.AccessibleDescription =
"Choose Channel to send to everyone, or a specific user for a private message.";
cboScope.DropDownStyle = ComboBoxStyle.DropDownList;
cboScope.Dock = DockStyle.Fill;
cboScope.TabIndex = 1;
txtCompose.AccessibleName = "Message text";
txtCompose.AccessibleDescription = "Type your message. Press Enter or click Send to send.";
txtCompose.Dock = DockStyle.Fill;
txtCompose.TabIndex = 2;
btnSend.Text = "&Send";
btnSend.Dock = DockStyle.Fill;
btnSend.TabIndex = 3;
tblCompose.ColumnCount = 3;
tblCompose.RowCount = 1;
tblCompose.Dock = DockStyle.Fill;
tblCompose.ColumnStyles.Add(new ColumnStyle(SizeType.Absolute, 165F));
tblCompose.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
tblCompose.ColumnStyles.Add(new ColumnStyle(SizeType.Absolute, 68F));
tblCompose.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
tblCompose.Padding = new Padding(0, 3, 0, 0);
tblCompose.Controls.Add(cboScope, 0, 0);
tblCompose.Controls.Add(txtCompose, 1, 0);
tblCompose.Controls.Add(btnSend, 2, 0);
// ── Activity log ──────────────────────────────────────────────────────
lblActivity.Text = "Activity:";
lblActivity.AutoSize = true;
lblActivity.Padding = new Padding(2, 4, 2, 1);
lstActivity.AccessibleName = "Activity log";
lstActivity.AccessibleDescription =
"Record of joins, leaves, talk-state changes, and server messages.";
lstActivity.Dock = DockStyle.Fill;
lstActivity.HorizontalScrollbar = true;
lstActivity.TabIndex = 4;
// ── Right table layout ────────────────────────────────────────────────
tblRight.ColumnCount = 1;
tblRight.RowCount = 5;
tblRight.Dock = DockStyle.Fill;
tblRight.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
tblRight.RowStyles.Add(new RowStyle(SizeType.AutoSize));
tblRight.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
tblRight.RowStyles.Add(new RowStyle(SizeType.Absolute, 34F));
tblRight.RowStyles.Add(new RowStyle(SizeType.AutoSize));
tblRight.RowStyles.Add(new RowStyle(SizeType.Absolute, 120F));
tblRight.Controls.Add(lblChat, 0, 0);
tblRight.Controls.Add(rtbChat, 0, 1);
tblRight.Controls.Add(tblCompose, 0, 2);
tblRight.Controls.Add(lblActivity, 0, 3);
tblRight.Controls.Add(lstActivity, 0, 4);
// ── Main split ────────────────────────────────────────────────────────
// SplitterDistance set in OnLoad — see MainForm.cs.
splitMain.Dock = DockStyle.Fill;
splitMain.Panel1MinSize = 150;
splitMain.TabIndex = 1;
splitMain.Panel1.Controls.Add(splitLeft);
splitMain.Panel2.Controls.Add(tblRight);
// ── Voice control panel ───────────────────────────────────────────────
// Top row: mic start/stop, mute/deafen, VAD/PTT
btnMicToggle.Text = "&Join Voice";
btnMicToggle.AutoSize = true;
btnMicToggle.Margin = new Padding(0, 2, 6, 0);
btnMicToggle.TabIndex = 0;
chkMute.Text = "&Mute mic";
chkMute.AutoSize = true;
chkMute.Enabled = false;
chkMute.Margin = new Padding(0, 4, 6, 0);
chkMute.TabIndex = 1;
chkDeafen.Text = "&Deafen";
chkDeafen.AutoSize = true;
chkDeafen.Enabled = false;
chkDeafen.Margin = new Padding(0, 4, 12, 0);
chkDeafen.TabIndex = 2;
var lblMode = new Label { Text = "Mode:", AutoSize = true, Margin = new Padding(0, 5, 4, 0) };
radioVad.Text = "&Voice activation";
radioVad.AutoSize = true;
radioVad.Checked = true;
radioVad.Enabled = false;
radioVad.Margin = new Padding(0, 4, 6, 0);
radioVad.TabIndex = 3;
radioPtt.Text = "&Push to talk";
radioPtt.AutoSize = true;
radioPtt.Enabled = false;
radioPtt.Margin = new Padding(0, 4, 4, 0);
radioPtt.TabIndex = 4;
radioAlwaysOn.Text = "A&lways on";
radioAlwaysOn.AutoSize = true;
radioAlwaysOn.Enabled = false;
radioAlwaysOn.Margin = new Padding(0, 4, 12, 0);
radioAlwaysOn.TabIndex = 5;
lblPttKey.Text = "(F8)";
lblPttKey.AutoSize = true;
lblPttKey.Margin = new Padding(2, 5, 4, 0);
lblPttKey.Visible = false;
btnChangePtt.Text = "Change key...";
btnChangePtt.AutoSize = true;
btnChangePtt.Margin = new Padding(0, 2, 0, 0);
btnChangePtt.Visible = false;
btnChangePtt.TabIndex = 6;
flpVoiceTop.Dock = DockStyle.Top;
flpVoiceTop.Height = 34;
flpVoiceTop.AutoSize = false;
flpVoiceTop.Padding = new Padding(4, 2, 4, 0);
flpVoiceTop.Controls.Add(btnMicToggle);
flpVoiceTop.Controls.Add(chkMute);
flpVoiceTop.Controls.Add(chkDeafen);
flpVoiceTop.Controls.Add(lblMode);
flpVoiceTop.Controls.Add(radioVad);
flpVoiceTop.Controls.Add(radioPtt);
flpVoiceTop.Controls.Add(radioAlwaysOn);
flpVoiceTop.Controls.Add(lblPttKey);
flpVoiceTop.Controls.Add(btnChangePtt);
// Bottom row: device picker + level meter
lblInputDevice.Text = "Input:";
lblInputDevice.AutoSize = true;
lblInputDevice.Margin = new Padding(0, 5, 4, 0);
cboInputDevice.AccessibleName = "Input device";
cboInputDevice.AccessibleDescription = "Select which microphone or audio device to use.";
cboInputDevice.DropDownStyle = ComboBoxStyle.DropDownList;
cboInputDevice.Width = 200;
cboInputDevice.Margin = new Padding(0, 2, 4, 0);
cboInputDevice.TabIndex = 7;
btnRefreshDevices.Text = "Re&fresh";
btnRefreshDevices.AutoSize = true;
btnRefreshDevices.Margin = new Padding(0, 2, 12, 0);
btnRefreshDevices.TabIndex = 8;
lblLevel.Text = "Level:";
lblLevel.AutoSize = true;
lblLevel.Margin = new Padding(0, 5, 4, 0);
pbLevel.AccessibleName = "Microphone level";
pbLevel.AccessibleDescription = "Current input level from the microphone.";
pbLevel.Width = 120;
pbLevel.Height = 16;
pbLevel.Maximum = 100;
pbLevel.Margin = new Padding(0, 6, 0, 0);
pbLevel.Style = ProgressBarStyle.Continuous;
pbLevel.TabStop = false; // informational, not actionable
lblVadThreshold.Text = "Sensitivity:";
lblVadThreshold.AutoSize = true;
lblVadThreshold.Margin = new Padding(12, 5, 4, 0);
lblVadThreshold.Visible = true; // shown when VAD mode active
trkVadThreshold.AccessibleName = "VAD sensitivity";
trkVadThreshold.AccessibleDescription =
"Voice detection sensitivity. Higher = more sensitive (triggers on quieter sounds). " +
"Range 1100; default 25.";
trkVadThreshold.Minimum = 1;
trkVadThreshold.Maximum = 100;
trkVadThreshold.Value = 76; // maps to ~0.024 (≈ default 0.025 threshold)
trkVadThreshold.TickFrequency = 10;
trkVadThreshold.SmallChange = 1;
trkVadThreshold.LargeChange = 10;
trkVadThreshold.Width = 120;
trkVadThreshold.Margin = new Padding(0, 2, 0, 0);
trkVadThreshold.TabIndex = 9;
trkVadThreshold.Visible = true;
flpVoiceBottom.Dock = DockStyle.Fill;
flpVoiceBottom.Padding = new Padding(4, 0, 4, 2);
flpVoiceBottom.Controls.Add(lblInputDevice);
flpVoiceBottom.Controls.Add(cboInputDevice);
flpVoiceBottom.Controls.Add(btnRefreshDevices);
flpVoiceBottom.Controls.Add(lblLevel);
flpVoiceBottom.Controls.Add(pbLevel);
flpVoiceBottom.Controls.Add(lblVadThreshold);
flpVoiceBottom.Controls.Add(trkVadThreshold);
pnlVoice.Dock = DockStyle.Bottom;
pnlVoice.Height = 68;
pnlVoice.BorderStyle = BorderStyle.FixedSingle;
pnlVoice.Padding = new Padding(0);
pnlVoice.Controls.Add(flpVoiceBottom); // Fill — added first
pnlVoice.Controls.Add(flpVoiceTop); // Top — added last
// ── Form ──────────────────────────────────────────────────────────────
AutoScaleMode = AutoScaleMode.Font;
ClientSize = new Size(960, 680);
MinimumSize = new Size(700, 540);
KeyPreview = true; // form sees KeyDown/KeyUp before focused control (needed for PTT)
// Controls added in reverse docking priority: Fill first, then Bottom, then Top.
Controls.Add(splitMain); // DockStyle.Fill
Controls.Add(pnlVoice); // DockStyle.Bottom
Controls.Add(lblStatus); // DockStyle.Top
StartPosition = FormStartPosition.CenterScreen;
Text = "VoiceCat";
}
}