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inspector: prettify keyboard stream

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This commit is contained in:
Mitchell Hashimoto
2026-01-29 19:53:03 -08:00
parent caf301d548
commit e9439533a7
1 changed files with 109 additions and 8 deletions
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117
src/inspector/widgets/key.zig
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@@ -295,8 +295,7 @@ pub const Stream = struct {
cimgui.c.ImGui_Separator();
const table_flags = cimgui.c.ImGuiTableFlags_RowBg |
cimgui.c.ImGuiTableFlags_Borders |
const table_flags = cimgui.c.ImGuiTableFlags_Borders |
cimgui.c.ImGuiTableFlags_Resizable |
cimgui.c.ImGuiTableFlags_ScrollY |
cimgui.c.ImGuiTableFlags_SizingFixedFit;
@@ -305,8 +304,8 @@ pub const Stream = struct {
defer cimgui.c.ImGui_EndTable();
cimgui.c.ImGui_TableSetupScrollFreeze(0, 1);
cimgui.c.ImGui_TableSetupColumnEx("Action", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 60, 0);
cimgui.c.ImGui_TableSetupColumnEx("Key", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 100, 0);
cimgui.c.ImGui_TableSetupColumnEx("Action", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 80, 0);
cimgui.c.ImGui_TableSetupColumnEx("Key", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 160, 0);
cimgui.c.ImGui_TableSetupColumnEx("Mods", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 150, 0);
cimgui.c.ImGui_TableSetupColumnEx("UTF-8", cimgui.c.ImGuiTableColumnFlags_WidthFixed, 80, 0);
cimgui.c.ImGui_TableSetupColumnEx("PTY Encoding", cimgui.c.ImGuiTableColumnFlags_WidthStretch, 0, 0);
@@ -319,18 +318,43 @@ pub const Stream = struct {
defer cimgui.c.ImGui_PopID();
cimgui.c.ImGui_TableNextRow();
const row_min_y = cimgui.c.ImGui_GetCursorScreenPos().y;
// Action
// Set row background color based on action
cimgui.c.ImGui_TableSetBgColor(cimgui.c.ImGuiTableBgTarget_RowBg0, actionColor(ev.event.action), -1);
// Action column with colored text
_ = cimgui.c.ImGui_TableSetColumnIndex(0);
cimgui.c.ImGui_Text("%s", @tagName(ev.event.action).ptr);
const action_text_color: cimgui.c.ImVec4 = switch (ev.event.action) {
.press => .{ .x = 0.4, .y = 1.0, .z = 0.4, .w = 1.0 }, // Green
.release => .{ .x = 0.6, .y = 0.6, .z = 1.0, .w = 1.0 }, // Blue
.repeat => .{ .x = 1.0, .y = 1.0, .z = 0.4, .w = 1.0 }, // Yellow
};
cimgui.c.ImGui_TextColored(action_text_color, "%s", @tagName(ev.event.action).ptr);
// Key
// Key column with consistent key coloring
_ = cimgui.c.ImGui_TableSetColumnIndex(1);
const key_name = switch (ev.event.key) {
.unidentified => if (ev.event.utf8.len > 0) ev.event.utf8 else @tagName(ev.event.key),
else => @tagName(ev.event.key),
};
cimgui.c.ImGui_Text("%s", key_name.ptr);
const key_rgba = keyColor(ev.event.key);
const key_color: cimgui.c.ImVec4 = .{
.x = @as(f32, @floatFromInt(key_rgba & 0xFF)) / 255.0,
.y = @as(f32, @floatFromInt((key_rgba >> 8) & 0xFF)) / 255.0,
.z = @as(f32, @floatFromInt((key_rgba >> 16) & 0xFF)) / 255.0,
.w = 1.0,
};
cimgui.c.ImGui_TextColored(key_color, "%s", key_name.ptr);
// Composing indicator
if (ev.event.composing) {
cimgui.c.ImGui_SameLine();
cimgui.c.ImGui_TextColored(.{ .x = 1.0, .y = 0.6, .z = 0.0, .w = 1.0 }, "*");
if (cimgui.c.ImGui_IsItemHovered(cimgui.c.ImGuiHoveredFlags_None)) {
cimgui.c.ImGui_SetTooltip("Composing (dead key)");
}
}
// Mods
_ = cimgui.c.ImGui_TableSetColumnIndex(2);
@@ -429,6 +453,83 @@ pub const Stream = struct {
binding_writer.writeByte(0) catch {};
cimgui.c.ImGui_Text("%s", &binding_buf);
}
// Row hover highlight
const row_max_y = cimgui.c.ImGui_GetCursorScreenPos().y;
const mouse_pos = cimgui.c.ImGui_GetMousePos();
if (mouse_pos.y >= row_min_y and mouse_pos.y < row_max_y) {
cimgui.c.ImGui_TableSetBgColor(cimgui.c.ImGuiTableBgTarget_RowBg1, 0x1AFFFFFF, -1);
}
}
}
};
/// Returns row background color for an action (ABGR format for ImGui)
fn actionColor(action: input.Action) u32 {
return switch (action) {
.press => 0x1A4A6F4A, // Muted sage green
.release => 0x1A6A5A5A, // Muted slate gray
.repeat => 0x1A4A5A6F, // Muted warm brown
};
}
/// Generate a consistent color for a key based on its enum value.
/// Uses HSV color space with fixed saturation and value for pleasing colors.
fn keyColor(key: input.Key) u32 {
const key_int: u32 = @intCast(@intFromEnum(key));
const hue: f32 = @as(f32, @floatFromInt(key_int *% 47)) / 256.0;
return hsvToRgba(hue, 0.5, 0.9, 1.0);
}
/// Convert HSV (hue 0-1, saturation 0-1, value 0-1) to RGBA u32.
fn hsvToRgba(h: f32, s: f32, v: f32, a: f32) u32 {
var r: f32 = undefined;
var g: f32 = undefined;
var b: f32 = undefined;
const i: u32 = @intFromFloat(h * 6.0);
const f = h * 6.0 - @as(f32, @floatFromInt(i));
const p = v * (1.0 - s);
const q = v * (1.0 - f * s);
const t = v * (1.0 - (1.0 - f) * s);
switch (i % 6) {
0 => {
r = v;
g = t;
b = p;
},
1 => {
r = q;
g = v;
b = p;
},
2 => {
r = p;
g = v;
b = t;
},
3 => {
r = p;
g = q;
b = v;
},
4 => {
r = t;
g = p;
b = v;
},
else => {
r = v;
g = p;
b = q;
},
}
const ri: u32 = @intFromFloat(r * 255.0);
const gi: u32 = @intFromFloat(g * 255.0);
const bi: u32 = @intFromFloat(b * 255.0);
const ai: u32 = @intFromFloat(a * 255.0);
return (ai << 24) | (bi << 16) | (gi << 8) | ri;
}