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kte/themes/EInk.h
Kyle Isom d15b241140 Refactor syntax highlighting infrastructure and related classes. 
- Moved all language highlighter implementations (`CppHighlighter`, `GoHighlighter`, `JsonHighlighter`, etc.), the engine, and registry to `syntax/`.
2025-12-02 01:36:26 -08:00

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// themes/EInk.h — Monochrome e-ink inspired ImGui themes (header-only)
#pragma once
#include "imgui.h"
#include "ThemeHelpers.h"
// Expects to be included from GUITheme.h after <imgui.h> and RGBA() helper
static void
ApplyEInkImGuiTheme()
{
// E-Ink grayscale palette (light background)
const ImVec4 paper = RGBA(0xF2F2EE); // light paper
const ImVec4 bg1 = RGBA(0xE6E6E2);
const ImVec4 bg2 = RGBA(0xDADAD5);
const ImVec4 bg3 = RGBA(0xCFCFCA);
const ImVec4 ink = RGBA(0x111111); // primary text (near black)
const ImVec4 dim = RGBA(0x666666); // disabled text
const ImVec4 border = RGBA(0xB8B8B3);
const ImVec4 accent = RGBA(0x222222); // controls/active
ImGuiStyle &style = ImGui::GetStyle();
style.WindowPadding = ImVec2(8.0f, 8.0f);
style.FramePadding = ImVec2(6.0f, 4.0f);
style.CellPadding = ImVec2(6.0f, 4.0f);
style.ItemSpacing = ImVec2(6.0f, 6.0f);
style.ItemInnerSpacing = ImVec2(6.0f, 4.0f);
style.ScrollbarSize = 14.0f;
style.GrabMinSize = 10.0f;
style.WindowRounding = 0.0f;
style.FrameRounding = 0.0f;
style.PopupRounding = 0.0f;
style.GrabRounding = 0.0f;
style.TabRounding = 0.0f;
style.WindowBorderSize = 1.0f;
style.FrameBorderSize = 1.0f;
ImVec4 *colors = style.Colors;
colors[ImGuiCol_Text] = ink;
colors[ImGuiCol_TextDisabled] = ImVec4(dim.x, dim.y, dim.z, 1.0f);
colors[ImGuiCol_WindowBg] = paper;
colors[ImGuiCol_ChildBg] = paper;
colors[ImGuiCol_PopupBg] = ImVec4(bg1.x, bg1.y, bg1.z, 0.98f);
colors[ImGuiCol_Border] = border;
colors[ImGuiCol_BorderShadow] = RGBA(0x000000, 0.0f);
colors[ImGuiCol_FrameBg] = bg2;
colors[ImGuiCol_FrameBgHovered] = bg3;
colors[ImGuiCol_FrameBgActive] = bg1;
colors[ImGuiCol_TitleBg] = bg1;
colors[ImGuiCol_TitleBgActive] = bg2;
colors[ImGuiCol_TitleBgCollapsed] = bg1;
colors[ImGuiCol_MenuBarBg] = bg1;
colors[ImGuiCol_ScrollbarBg] = paper;
colors[ImGuiCol_ScrollbarGrab] = bg3;
colors[ImGuiCol_ScrollbarGrabHovered] = bg2;
colors[ImGuiCol_ScrollbarGrabActive] = bg1;
colors[ImGuiCol_CheckMark] = accent;
colors[ImGuiCol_SliderGrab] = accent;
colors[ImGuiCol_SliderGrabActive] = ink;
colors[ImGuiCol_Button] = bg3;
colors[ImGuiCol_ButtonHovered] = bg2;
colors[ImGuiCol_ButtonActive] = bg1;
colors[ImGuiCol_Header] = bg3;
colors[ImGuiCol_HeaderHovered] = bg2;
colors[ImGuiCol_HeaderActive] = bg2;
colors[ImGuiCol_Separator] = border;
colors[ImGuiCol_SeparatorHovered] = bg2;
colors[ImGuiCol_SeparatorActive] = accent;
colors[ImGuiCol_ResizeGrip] = ImVec4(ink.x, ink.y, ink.z, 0.12f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(accent.x, accent.y, accent.z, 0.50f);
colors[ImGuiCol_ResizeGripActive] = ink;
colors[ImGuiCol_Tab] = bg2;
colors[ImGuiCol_TabHovered] = bg1;
colors[ImGuiCol_TabActive] = bg3;
colors[ImGuiCol_TabUnfocused] = bg2;
colors[ImGuiCol_TabUnfocusedActive] = bg3;
colors[ImGuiCol_TableHeaderBg] = bg2;
colors[ImGuiCol_TableBorderStrong] = bg1;
colors[ImGuiCol_TableBorderLight] = ImVec4(bg1.x, bg1.y, bg1.z, 0.6f);
colors[ImGuiCol_TableRowBg] = ImVec4(bg1.x, bg1.y, bg1.z, 0.2f);
colors[ImGuiCol_TableRowBgAlt] = ImVec4(bg1.x, bg1.y, bg1.z, 0.35f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(accent.x, accent.y, accent.z, 0.30f);
colors[ImGuiCol_DragDropTarget] = accent;
colors[ImGuiCol_NavHighlight] = accent;
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(ink.x, ink.y, ink.z, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.0f, 0.0f, 0.0f, 0.45f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.0f, 0.0f, 0.0f, 0.45f);
colors[ImGuiCol_PlotLines] = accent;
colors[ImGuiCol_PlotLinesHovered] = ink;
colors[ImGuiCol_PlotHistogram] = accent;
colors[ImGuiCol_PlotHistogramHovered] = ink;
}
static inline void
ApplyEInkDarkImGuiTheme()
{
// E-Ink dark variant (dark background, light ink)
const ImVec4 paper = RGBA(0x1A1A1A);
const ImVec4 bg1 = RGBA(0x222222);
const ImVec4 bg2 = RGBA(0x2B2B2B);
const ImVec4 bg3 = RGBA(0x343434);
const ImVec4 ink = RGBA(0xEDEDEA);
const ImVec4 dim = RGBA(0xB5B5B3);
const ImVec4 border = RGBA(0x444444);
const ImVec4 accent = RGBA(0xDDDDDD);
ImGuiStyle &style = ImGui::GetStyle();
style.WindowPadding = ImVec2(8.0f, 8.0f);
style.FramePadding = ImVec2(6.0f, 4.0f);
style.CellPadding = ImVec2(6.0f, 4.0f);
style.ItemSpacing = ImVec2(6.0f, 6.0f);
style.ItemInnerSpacing = ImVec2(6.0f, 4.0f);
style.ScrollbarSize = 14.0f;
style.GrabMinSize = 10.0f;
style.WindowRounding = 0.0f;
style.FrameRounding = 0.0f;
style.PopupRounding = 0.0f;
style.GrabRounding = 0.0f;
style.TabRounding = 0.0f;
style.WindowBorderSize = 1.0f;
style.FrameBorderSize = 1.0f;
ImVec4 *colors = style.Colors;
colors[ImGuiCol_Text] = ink;
colors[ImGuiCol_TextDisabled] = ImVec4(dim.x, dim.y, dim.z, 1.0f);
colors[ImGuiCol_WindowBg] = paper;
colors[ImGuiCol_ChildBg] = paper;
colors[ImGuiCol_PopupBg] = ImVec4(bg1.x, bg1.y, bg1.z, 0.98f);
colors[ImGuiCol_Border] = border;
colors[ImGuiCol_BorderShadow] = RGBA(0x000000, 0.0f);
colors[ImGuiCol_FrameBg] = bg2;
colors[ImGuiCol_FrameBgHovered] = bg3;
colors[ImGuiCol_FrameBgActive] = bg1;
colors[ImGuiCol_TitleBg] = bg1;
colors[ImGuiCol_TitleBgActive] = bg2;
colors[ImGuiCol_TitleBgCollapsed] = bg1;
colors[ImGuiCol_MenuBarBg] = bg1;
colors[ImGuiCol_ScrollbarBg] = paper;
colors[ImGuiCol_ScrollbarGrab] = bg3;
colors[ImGuiCol_ScrollbarGrabHovered] = bg2;
colors[ImGuiCol_ScrollbarGrabActive] = bg1;
colors[ImGuiCol_CheckMark] = accent;
colors[ImGuiCol_SliderGrab] = accent;
colors[ImGuiCol_SliderGrabActive] = ink;
colors[ImGuiCol_Button] = bg3;
colors[ImGuiCol_ButtonHovered] = bg2;
colors[ImGuiCol_ButtonActive] = bg1;
colors[ImGuiCol_Header] = bg3;
colors[ImGuiCol_HeaderHovered] = bg2;
colors[ImGuiCol_HeaderActive] = bg2;
colors[ImGuiCol_Separator] = border;
colors[ImGuiCol_SeparatorHovered] = bg2;
colors[ImGuiCol_SeparatorActive] = accent;
colors[ImGuiCol_ResizeGrip] = ImVec4(ink.x, ink.y, ink.z, 0.12f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(accent.x, accent.y, accent.z, 0.50f);
colors[ImGuiCol_ResizeGripActive] = ink;
colors[ImGuiCol_Tab] = bg2;
colors[ImGuiCol_TabHovered] = bg1;
colors[ImGuiCol_TabActive] = bg3;
colors[ImGuiCol_TabUnfocused] = bg2;
colors[ImGuiCol_TabUnfocusedActive] = bg3;
colors[ImGuiCol_TableHeaderBg] = bg2;
colors[ImGuiCol_TableBorderStrong] = bg1;
colors[ImGuiCol_TableBorderLight] = ImVec4(bg1.x, bg1.y, bg1.z, 0.6f);
colors[ImGuiCol_TableRowBg] = ImVec4(bg1.x, bg1.y, bg1.z, 0.2f);
colors[ImGuiCol_TableRowBgAlt] = ImVec4(bg1.x, bg1.y, bg1.z, 0.35f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(accent.x, accent.y, accent.z, 0.30f);
colors[ImGuiCol_DragDropTarget] = accent;
colors[ImGuiCol_NavHighlight] = accent;
colors[ImGuiCol_NavWindowingHighlight] = ImVec4(ink.x, ink.y, ink.z, 0.70f);
colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.0f, 0.0f, 0.0f, 0.45f);
colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.0f, 0.0f, 0.0f, 0.45f);
colors[ImGuiCol_PlotLines] = accent;
colors[ImGuiCol_PlotLinesHovered] = ink;
colors[ImGuiCol_PlotHistogram] = accent;
colors[ImGuiCol_PlotHistogramHovered] = ink;
}
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