Files
whetstone_DSL/editor/src/EditorUtils.h

722 lines
27 KiB
C++

#pragma once
#include "EditorState.h"
#include "StringUtils.h"
#include "imgui.h"
#include "SyntaxHighlighter.h"
#include "CodeEditorWidget.h"
#include "FileTree.h"
#include "WelcomeScreen.h"
#include "FileDialog.h"
#include "LSPClient.h"
#include "BufferManager.h"
#include "ast/Serialization.h"
#include "ast/Generator.h"
#include "ast/Annotation.h"
#include <string>
#include <vector>
#include <algorithm>
#include <climits>
#include <memory>
static int countLines(const std::string& text) {
int lines = 1;
for (char c : text) {
if (c == '\n') ++lines;
}
return lines;
}
static std::string generateForLanguage(const Module* ast, const std::string& language) {
if (!ast) return "";
if (language == "python") {
PythonGenerator gen;
return gen.generate(ast);
}
if (language == "cpp") {
CppGenerator gen;
return gen.generate(ast);
}
if (language == "elisp") {
ElispGenerator gen;
return gen.generate(ast);
}
if (language == "javascript") {
JavaScriptGenerator gen;
return gen.generate(ast);
}
if (language == "typescript") {
TypeScriptGenerator gen;
return gen.generate(ast);
}
if (language == "java") {
JavaGenerator gen;
return gen.generate(ast);
}
if (language == "rust") {
RustGenerator gen;
return gen.generate(ast);
}
if (language == "go") {
GoGenerator gen;
return gen.generate(ast);
}
PythonGenerator gen;
return gen.generate(ast);
}
static std::unique_ptr<Module> cloneModule(const Module* ast) {
if (!ast) return nullptr;
json j = toJson(ast);
ASTNode* node = fromJson(j);
if (!node || node->conceptType != "Module") return nullptr;
return std::unique_ptr<Module>(static_cast<Module*>(node));
}
static bool isAnnotationNode(const ASTNode* node) {
if (!node) return false;
if (node->conceptType.find("Annotation") != std::string::npos) return true;
if (node->conceptType == "DerefStrategy") return true;
if (node->conceptType == "OptimizationLock") return true;
if (node->conceptType == "LangSpecific") return true;
return false;
}
static int countAnnotationNodes(const ASTNode* node) {
if (!node) return 0;
int count = isAnnotationNode(node) ? 1 : 0;
for (auto* child : node->allChildren()) {
count += countAnnotationNodes(child);
}
return count;
}
static std::string findOptimizationBlockReason(const ASTNode* node) {
if (!node) return "";
for (auto* anno : node->getChildren("annotations")) {
if (anno->conceptType == "OwnerAnnotation") {
auto* oa = static_cast<const OwnerAnnotation*>(anno);
if (oa->strategy == "Single") {
return "@Owner(Single) blocks optimization (aliasing risk)";
}
}
if (anno->conceptType == "DeallocateAnnotation") {
auto* da = static_cast<const DeallocateAnnotation*>(anno);
if (da->strategy == "Explicit") {
return "@Deallocate(Explicit) blocks optimization (reorder risk)";
}
}
if (anno->conceptType == "AllocateAnnotation") {
auto* aa = static_cast<const AllocateAnnotation*>(anno);
if (aa->strategy == "Static") {
return "@Allocate(Static) blocks optimization (dynamic alloc risk)";
}
}
}
for (auto* child : node->allChildren()) {
std::string found = findOptimizationBlockReason(child);
if (!found.empty()) return found;
}
return "";
}
static std::string findOptimizationLockWarning(const ASTNode* node) {
if (!node) return "";
if (node->conceptType == "OptimizationLock") {
auto* lock = static_cast<const OptimizationLock*>(node);
if (lock->lockLevel == "warning") {
return "OptimizationLock: " + lock->lockReason +
" (locked by " + lock->lockedBy + ")";
}
}
for (auto* child : node->allChildren()) {
std::string found = findOptimizationLockWarning(child);
if (!found.empty()) return found;
}
return "";
}
static ImVec4 transformColorForName(const std::string& name) {
if (name == "constant-fold") return ImVec4(0.45f, 0.85f, 0.45f, 1.0f);
if (name == "dead-code-elim") return ImVec4(0.90f, 0.45f, 0.45f, 1.0f);
return ImVec4(0.75f, 0.75f, 0.75f, 1.0f);
}
// ---------------------------------------------------------------------------
// ImGui InputTextMultiline with std::string resize callback
// ---------------------------------------------------------------------------
struct InputTextCallbackData {
std::string* str;
};
static int InputTextCallback(ImGuiInputTextCallbackData* data) {
auto* userData = static_cast<InputTextCallbackData*>(data->UserData);
if (data->EventFlag == ImGuiInputTextFlags_CallbackResize) {
userData->str->resize(data->BufTextLen);
data->Buf = userData->str->data();
}
return 0;
}
static bool InputTextMultilineStr(const char* label, std::string* str,
const ImVec2& size, ImGuiInputTextFlags flags = 0) {
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallbackData cbData{str};
// Ensure buffer has room
if (str->capacity() < str->size() + 256)
str->reserve(str->size() + 4096);
return ImGui::InputTextMultiline(label, str->data(), str->capacity() + 1,
size, flags, InputTextCallback, &cbData);
}
static bool InputTextStr(const char* label, std::string* str, ImGuiInputTextFlags flags = 0) {
flags |= ImGuiInputTextFlags_CallbackResize;
InputTextCallbackData cbData{str};
if (str->capacity() < str->size() + 64)
str->reserve(str->size() + 256);
return ImGui::InputText(label, str->data(), str->capacity() + 1,
flags, InputTextCallback, &cbData);
}
static bool annotationInfo(const ASTNode* anno, ImU32& color, std::string& label) {
if (!anno) return false;
if (anno->conceptType == "ReclaimAnnotation") {
auto* a = static_cast<const ReclaimAnnotation*>(anno);
if (a->strategy == "Tracing") {
color = IM_COL32(80, 140, 220, 255);
label = "@Reclaim(Tracing)";
return true;
}
} else if (anno->conceptType == "OwnerAnnotation") {
auto* a = static_cast<const OwnerAnnotation*>(anno);
if (a->strategy == "Single") {
color = IM_COL32(220, 160, 60, 255);
label = "@Owner(Single)";
return true;
}
} else if (anno->conceptType == "DeallocateAnnotation") {
auto* a = static_cast<const DeallocateAnnotation*>(anno);
if (a->strategy == "Explicit") {
color = IM_COL32(220, 80, 80, 255);
label = "@Deallocate(Explicit)";
return true;
}
} else if (anno->conceptType == "LifetimeAnnotation") {
auto* a = static_cast<const LifetimeAnnotation*>(anno);
if (a->strategy == "RAII") {
color = IM_COL32(80, 180, 100, 255);
label = "@Lifetime(RAII)";
return true;
}
} else if (anno->conceptType == "AllocateAnnotation") {
auto* a = static_cast<const AllocateAnnotation*>(anno);
if (a->strategy == "Static") {
color = IM_COL32(160, 160, 160, 255);
label = "@Allocate(Static)";
return true;
}
}
return false;
}
static std::string annotationLabel(const ASTNode* anno) {
if (!anno) return "";
if (anno->conceptType == "ReclaimAnnotation") {
auto* a = static_cast<const ReclaimAnnotation*>(anno);
return "@Reclaim(" + a->strategy + ")";
}
if (anno->conceptType == "OwnerAnnotation") {
auto* a = static_cast<const OwnerAnnotation*>(anno);
return "@Owner(" + a->strategy + ")";
}
if (anno->conceptType == "DeallocateAnnotation") {
auto* a = static_cast<const DeallocateAnnotation*>(anno);
return "@Deallocate(" + a->strategy + ")";
}
if (anno->conceptType == "LifetimeAnnotation") {
auto* a = static_cast<const LifetimeAnnotation*>(anno);
return "@Lifetime(" + a->strategy + ")";
}
if (anno->conceptType == "AllocateAnnotation") {
auto* a = static_cast<const AllocateAnnotation*>(anno);
return "@Allocate(" + a->strategy + ")";
}
return anno->conceptType;
}
static std::string nodeDisplayName(const ASTNode* node) {
if (!node) return "";
if (node->conceptType == "Function") return static_cast<const Function*>(node)->name;
if (node->conceptType == "Variable") return static_cast<const Variable*>(node)->name;
return node->conceptType;
}
static std::string nextAnnotationId() {
static int counter = 0;
return "anno_ui_" + std::to_string(counter++);
}
static Annotation* createAnnotationNode(const std::string& type, const std::string& strategy) {
if (type == "ReclaimAnnotation") {
auto* a = new ReclaimAnnotation(nextAnnotationId(), strategy);
return a;
}
if (type == "OwnerAnnotation") {
auto* a = new OwnerAnnotation(nextAnnotationId(), strategy);
return a;
}
if (type == "DeallocateAnnotation") {
auto* a = new DeallocateAnnotation(nextAnnotationId(), strategy);
return a;
}
if (type == "LifetimeAnnotation") {
auto* a = new LifetimeAnnotation(nextAnnotationId(), strategy);
return a;
}
if (type == "AllocateAnnotation") {
auto* a = new AllocateAnnotation(nextAnnotationId(), strategy);
return a;
}
return nullptr;
}
static int spanScore(const ASTNode* node) {
if (!node || !node->hasSpan()) return INT_MAX;
int lines = node->spanEndLine - node->spanStartLine;
int cols = node->spanEndCol - node->spanStartCol;
return lines * 10000 + cols;
}
static bool spanContains(const ASTNode* node, int line, int col) {
if (!node || !node->hasSpan()) return false;
if (line < node->spanStartLine || line > node->spanEndLine) return false;
if (line == node->spanStartLine && col < node->spanStartCol) return false;
if (line == node->spanEndLine && col > node->spanEndCol) return false;
return true;
}
static ASTNode* findNodeAtPosition(ASTNode* node, int line, int col) {
if (!node) return nullptr;
ASTNode* best = nullptr;
if (spanContains(node, line, col)) best = node;
for (auto* child : node->allChildren()) {
ASTNode* cand = findNodeAtPosition(child, line, col);
if (cand) {
if (!best || spanScore(cand) < spanScore(best)) best = cand;
}
}
return best;
}
static ASTNode* findAnnotationTarget(ASTNode* node, int line) {
if (!node) return nullptr;
ASTNode* best = nullptr;
if (node->hasSpan() && line >= node->spanStartLine && line <= node->spanEndLine) {
if (node->conceptType == "Function" || node->conceptType == "Variable") {
best = node;
}
}
for (auto* child : node->allChildren()) {
ASTNode* cand = findAnnotationTarget(child, line);
if (cand) {
if (!best || spanScore(cand) < spanScore(best)) best = cand;
}
}
return best;
}
static ASTNode* findNodeById(ASTNode* node, const std::string& id) {
if (!node) return nullptr;
if (node->id == id) return node;
for (auto* child : node->allChildren()) {
if (auto* found = findNodeById(child, id)) return found;
}
return nullptr;
}
static void collectAnnotationMarkers(const ASTNode* node, std::vector<AnnotationMarker>& out) {
if (!node) return;
if (node->hasSpan()) {
for (const auto* anno : node->getChildren("annotations")) {
ImU32 color = 0;
std::string label;
if (annotationInfo(anno, color, label)) {
AnnotationMarker marker;
marker.line = node->spanStartLine;
marker.color = color;
marker.message = label;
out.push_back(std::move(marker));
}
}
}
for (auto* child : node->allChildren()) {
collectAnnotationMarkers(child, out);
}
}
struct OutlineItem {
std::string name;
std::string kind;
int line = -1;
int col = -1;
std::vector<OutlineItem> children;
};
static OutlineItem makeOutlineItem(const std::string& name,
const std::string& kind,
const ASTNode* node) {
OutlineItem item;
item.name = name;
item.kind = kind;
if (node && node->hasSpan()) {
item.line = node->spanStartLine;
item.col = node->spanStartCol;
}
return item;
}
static void collectOutlineFromFunction(const Function* fn, std::vector<OutlineItem>& out) {
OutlineItem item = makeOutlineItem(fn->name, "Function", fn);
for (auto* p : fn->getChildren("parameters")) {
if (p->conceptType == "Parameter") {
auto* param = static_cast<const Parameter*>(p);
item.children.push_back(makeOutlineItem(param->name, "Parameter", param));
}
}
for (auto* child : fn->getChildren("body")) {
if (child->conceptType == "Variable") {
auto* var = static_cast<const Variable*>(child);
item.children.push_back(makeOutlineItem(var->name, "Variable", var));
}
}
out.push_back(std::move(item));
}
static void collectOutlineFromAST(const Module* mod, std::vector<OutlineItem>& out) {
if (!mod) return;
for (auto* child : mod->getChildren("variables")) {
if (child->conceptType == "Variable") {
auto* var = static_cast<const Variable*>(child);
out.push_back(makeOutlineItem(var->name, "Variable", var));
}
}
for (auto* child : mod->getChildren("functions")) {
if (child->conceptType == "Function") {
auto* fn = static_cast<const Function*>(child);
collectOutlineFromFunction(fn, out);
}
}
}
// trimCopy is in StringUtils.h
static std::string toLowerCopy(const std::string& input) {
std::string out = input;
std::transform(out.begin(), out.end(), out.begin(),
[](unsigned char c) { return (char)std::tolower(c); });
return out;
}
static bool containsCaseInsensitive(const std::string& text, const std::string& filter) {
if (filter.empty()) return true;
std::string hay = toLowerCopy(text);
return hay.find(filter) != std::string::npos;
}
static bool outlineMatchesFilter(const OutlineItem& item, const std::string& filter) {
if (filter.empty()) return true;
if (containsCaseInsensitive(item.name, filter)) return true;
for (const auto& child : item.children) {
if (outlineMatchesFilter(child, filter)) return true;
}
return false;
}
static const char* lspSymbolKindLabel(int kind) {
switch (kind) {
case 1: return "File";
case 2: return "Module";
case 5: return "Class";
case 6: return "Method";
case 12: return "Function";
case 13: return "Variable";
case 14: return "Constant";
case 19: return "String";
case 23: return "Struct";
default: return "Symbol";
}
}
static bool lspSymbolMatchesFilter(const LSPClient::DocumentSymbol& sym, const std::string& filter) {
if (filter.empty()) return true;
if (containsCaseInsensitive(sym.name, filter)) return true;
for (const auto& child : sym.children) {
if (lspSymbolMatchesFilter(child, filter)) return true;
}
return false;
}
// ---------------------------------------------------------------------------
// Theme setup — VSCode Dark-inspired
// ---------------------------------------------------------------------------
static void SetupVSCodeDarkTheme() {
ImGuiStyle& style = ImGui::GetStyle();
ImVec4* colors = style.Colors;
// Window
colors[ImGuiCol_WindowBg] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
colors[ImGuiCol_ChildBg] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.15f, 0.15f, 0.15f, 1.00f);
// Borders
colors[ImGuiCol_Border] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
// Frame (input fields, checkboxes)
colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.16f, 0.16f, 1.00f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.24f, 0.24f, 0.24f, 1.00f);
// Title bar
colors[ImGuiCol_TitleBg] = ImVec4(0.08f, 0.08f, 0.08f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.08f, 0.08f, 0.08f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.08f, 0.08f, 0.08f, 1.00f);
// Menu bar
colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
// Scrollbar
colors[ImGuiCol_ScrollbarBg] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.30f, 0.30f, 0.30f, 1.00f);
colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.40f, 1.00f);
colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
// Buttons
colors[ImGuiCol_Button] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.28f, 0.28f, 0.28f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.15f, 0.15f, 0.15f, 1.00f);
// Headers (collapsing headers, tree nodes)
colors[ImGuiCol_Header] = ImVec4(0.18f, 0.18f, 0.18f, 1.00f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.26f, 0.26f, 1.00f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.22f, 0.22f, 0.22f, 1.00f);
// Separator
colors[ImGuiCol_Separator] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.28f, 0.56f, 0.89f, 1.00f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.28f, 0.56f, 0.89f, 1.00f);
// Tabs
colors[ImGuiCol_Tab] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
colors[ImGuiCol_TabHovered] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f);
colors[ImGuiCol_TabActive] = ImVec4(0.18f, 0.18f, 0.18f, 1.00f);
colors[ImGuiCol_TabUnfocused] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
colors[ImGuiCol_TabUnfocusedActive] = ImVec4(0.16f, 0.16f, 0.16f, 1.00f);
// Docking
colors[ImGuiCol_DockingPreview] = ImVec4(0.28f, 0.56f, 0.89f, 0.70f);
colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.12f, 0.12f, 0.12f, 1.00f);
// Text
colors[ImGuiCol_Text] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
// Selection / highlight
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.17f, 0.40f, 0.64f, 0.60f);
// Style tweaks
style.WindowRounding = 0.0f;
style.FrameRounding = 2.0f;
style.ScrollbarRounding = 2.0f;
style.GrabRounding = 2.0f;
style.TabRounding = 0.0f;
style.WindowBorderSize = 1.0f;
style.FrameBorderSize = 0.0f;
style.WindowPadding = ImVec2(8, 8);
style.FramePadding = ImVec2(6, 3);
style.ItemSpacing = ImVec2(6, 4);
}
static void SetupVSCodeLightTheme() {
ImGuiStyle& style = ImGui::GetStyle();
ImVec4* colors = style.Colors;
colors[ImGuiCol_WindowBg] = ImVec4(0.95f, 0.95f, 0.95f, 1.00f);
colors[ImGuiCol_ChildBg] = ImVec4(0.95f, 0.95f, 0.95f, 1.00f);
colors[ImGuiCol_PopupBg] = ImVec4(0.98f, 0.98f, 0.98f, 1.00f);
colors[ImGuiCol_Border] = ImVec4(0.75f, 0.75f, 0.75f, 1.00f);
colors[ImGuiCol_FrameBg] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.85f, 0.85f, 0.85f, 1.00f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.80f, 0.80f, 0.80f, 1.00f);
colors[ImGuiCol_TitleBg] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
colors[ImGuiCol_MenuBarBg] = ImVec4(0.92f, 0.92f, 0.92f, 1.00f);
colors[ImGuiCol_Button] = ImVec4(0.85f, 0.85f, 0.85f, 1.00f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.78f, 0.78f, 0.78f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.70f, 0.70f, 0.70f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.75f, 0.75f, 0.75f, 1.00f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.70f, 0.70f, 0.70f, 1.00f);
colors[ImGuiCol_Text] = ImVec4(0.10f, 0.10f, 0.10f, 1.00f);
colors[ImGuiCol_TextDisabled] = ImVec4(0.45f, 0.45f, 0.45f, 1.00f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.40f, 0.60f, 0.90f, 0.45f);
style.WindowRounding = 0.0f;
style.FrameRounding = 2.0f;
style.ScrollbarRounding = 2.0f;
style.GrabRounding = 2.0f;
style.TabRounding = 0.0f;
style.WindowBorderSize = 1.0f;
style.FrameBorderSize = 0.0f;
style.WindowPadding = ImVec2(8, 8);
style.FramePadding = ImVec2(6, 3);
style.ItemSpacing = ImVec2(6, 4);
}
// ---------------------------------------------------------------------------
// Syntax highlight color map
// ---------------------------------------------------------------------------
static ImVec4 tokenColor(TokenCategory cat) {
switch (cat) {
case TokenCategory::Keyword: return ImVec4(0.77f, 0.49f, 0.86f, 1.0f); // purple
case TokenCategory::String: return ImVec4(0.81f, 0.54f, 0.37f, 1.0f); // orange
case TokenCategory::Comment: return ImVec4(0.42f, 0.52f, 0.35f, 1.0f); // green
case TokenCategory::Number: return ImVec4(0.71f, 0.80f, 0.55f, 1.0f); // light green
case TokenCategory::Function: return ImVec4(0.86f, 0.86f, 0.55f, 1.0f); // yellow
case TokenCategory::Parameter: return ImVec4(0.60f, 0.78f, 0.90f, 1.0f); // light blue
case TokenCategory::Type: return ImVec4(0.30f, 0.70f, 0.68f, 1.0f); // teal
case TokenCategory::Operator: return ImVec4(0.86f, 0.86f, 0.86f, 1.0f); // white
case TokenCategory::Punctuation: return ImVec4(0.60f, 0.60f, 0.60f, 1.0f); // gray
case TokenCategory::Builtin: return ImVec4(0.30f, 0.70f, 0.90f, 1.0f); // blue
case TokenCategory::Identifier: return ImVec4(0.60f, 0.78f, 0.90f, 1.0f); // light blue
default: return ImVec4(0.86f, 0.86f, 0.86f, 1.0f); // white
}
}
// ---------------------------------------------------------------------------
// Render syntax-highlighted text (read-only preview)
// ---------------------------------------------------------------------------
static void RenderHighlightedText(const std::string& text,
const std::vector<HighlightSpan>& spans) {
if (text.empty()) return;
// Build a color for each byte position
// Default = plain text color
std::vector<TokenCategory> charCats(text.size(), TokenCategory::Plain);
for (const auto& span : spans) {
for (uint32_t i = span.start; i < span.end && i < charCats.size(); ++i) {
charCats[i] = span.category;
}
}
// Render line by line, span by span
size_t pos = 0;
int lineNum = 1;
while (pos < text.size()) {
// Find end of line
size_t eol = text.find('\n', pos);
if (eol == std::string::npos) eol = text.size();
// Line number
ImGui::TextColored(ImVec4(0.45f, 0.45f, 0.45f, 1.0f), "%4d ", lineNum);
ImGui::SameLine(0.0f, 0.0f);
// Render spans within this line
size_t linePos = pos;
while (linePos < eol) {
// Find the extent of the current color
TokenCategory cat = charCats[linePos];
size_t spanEnd = linePos + 1;
while (spanEnd < eol && charCats[spanEnd] == cat) ++spanEnd;
std::string chunk = text.substr(linePos, spanEnd - linePos);
ImGui::TextColored(tokenColor(cat), "%s", chunk.c_str());
if (spanEnd < eol) ImGui::SameLine(0.0f, 0.0f);
linePos = spanEnd;
}
if (linePos == pos) {
// Empty line
ImGui::TextUnformatted("");
}
pos = eol + 1;
++lineNum;
}
}
// ---------------------------------------------------------------------------
// File tree rendering
// ---------------------------------------------------------------------------
static void RenderFileTree(const FileNode& node, EditorState& state) {
if (!node.isDir) {
if (ImGui::Selectable(node.name.c_str())) {
state.doOpen(node.path, state.defaultBufferMode());
}
return;
}
ImGuiTreeNodeFlags flags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick;
if (ImGui::TreeNodeEx(node.name.c_str(), flags)) {
for (const auto& child : node.children) {
RenderFileTree(child, state);
}
ImGui::TreePop();
}
}
// ---------------------------------------------------------------------------
// Welcome screen rendering
// ---------------------------------------------------------------------------
static void RenderWelcome(WelcomeScreen& welcome, EditorState& state, std::string& lastDialogPath) {
ImGui::Text("%s", welcome.getTitle().c_str());
ImGui::TextColored(ImVec4(0.7f, 0.7f, 0.7f, 1.0f), "%s", welcome.getSubtitle().c_str());
ImGui::Separator();
ImGui::Text("Quick Actions");
if (ImGui::Button("New File")) {
std::string lang = state.active() ? state.active()->language : "python";
state.createBuffer(state.makeUntitledName(), "", lang, state.defaultBufferMode());
}
ImGui::SameLine();
if (ImGui::Button("Open File")) {
auto path = FileDialog::openFile({"Open File", {"*.py","*.cpp","*.h","*.el","*.js","*.ts","*.java","*.rs","*.go"}, lastDialogPath});
if (!path.empty()) {
lastDialogPath = path;
state.doOpen(path, state.defaultBufferMode());
}
}
ImGui::SameLine();
if (ImGui::Button("Open Folder")) {
auto path = FileDialog::openFolder({"Open Folder", state.workspaceRoot});
if (!path.empty()) {
state.workspaceRoot = path;
state.fileTreeDirty = true;
state.search.projectSearch.setRoot(state.workspaceRoot);
lastDialogPath = path;
}
}
ImGui::Separator();
ImGui::Text("Recent Files");
for (const auto& rf : welcome.getRecentFiles()) {
if (ImGui::Selectable(rf.displayName.c_str())) {
state.doOpen(rf.path, bufferModeFromString(rf.mode));
}
}
ImGui::Separator();
ImGui::Text("Tip");
ImGui::TextWrapped("%s", welcome.getTip(0).c_str());
}