Added basic command palette (similar to the one in vscode)

2026-04-02 05:27:41 -05:00 · 2020-12-16 22:43:07 +01:00
parent 56cca88fbd
commit 9123b21e18
6 changed files with 216 additions and 1 deletions
--- a/source/views/view_command_palette.cpp
+++ b/source/views/view_command_palette.cpp
@@ -0,0 +1,131 @@
+#include "views/view_command_palette.hpp"
+
+#include <GLFW/glfw3.h>
+
+#include "helpers/math_evaluator.hpp"
+
+namespace hex {
+
+    ViewCommandPalette::ViewCommandPalette() : View("Command Palette") {
+        this->getWindowOpenState() = true;
+
+        this->m_commandBuffer.resize(1024, 0x00);
+        this->m_lastResults = this->getCommandResults("");
+    }
+
+    ViewCommandPalette::~ViewCommandPalette() {
+
+    }
+
+    void ViewCommandPalette::createView() {
+
+        auto windowPos = View::getWindowPosition();
+        auto windowSize = View::getWindowSize();
+        auto paletteSize = this->getMinSize();
+        ImGui::SetNextWindowPos(ImVec2(windowPos.x + (windowSize.x - paletteSize.x) / 2.0F, windowPos.y), ImGuiCond_Always);
+        if (ImGui::BeginPopup("Command Palette")) {
+            if (ImGui::IsKeyDown(ImGui::GetKeyIndex(ImGuiKey_Escape)))
+                ImGui::CloseCurrentPopup();
+
+            ImGui::PushItemWidth(paletteSize.x - ImGui::GetStyle().WindowPadding.x * 2);
+            if (ImGui::InputText("##nolabel", this->m_commandBuffer.data(), this->m_commandBuffer.size(), ImGuiInputTextFlags_CallbackEdit | ImGuiInputTextFlags_EnterReturnsTrue,
+            [](ImGuiInputTextCallbackData *callbackData) -> int {
+                auto _this = static_cast<ViewCommandPalette*>(callbackData->UserData);
+                _this->m_lastResults = _this->getCommandResults(callbackData->Buf);
+
+                return 0;
+            }, this)) {
+                ImGui::CloseCurrentPopup();
+            }
+            ImGui::PopItemWidth();
+
+            if (this->m_justOpened) {
+                ImGui::SetKeyboardFocusHere(0);
+                this->m_justOpened = false;
+            }
+
+            ImGui::Separator();
+
+            for (const auto &result : this->m_lastResults) {
+                ImGui::TextUnformatted(result.c_str());
+            }
+
+            ImGui::EndPopup();
+        }
+    }
+
+    void ViewCommandPalette::createMenu() {
+
+    }
+
+    bool ViewCommandPalette::handleShortcut(int key, int mods) {
+        if (key == GLFW_KEY_P && mods == (GLFW_MOD_SHIFT | GLFW_MOD_CONTROL)) {
+            View::doLater([this] {
+                this->m_justOpened = true;
+                ImGui::OpenPopup("Command Palette");
+            });
+            return true;
+        }
+
+        return false;
+    }
+
+    enum class MatchType {
+        NoMatch,
+        InfoMatch,
+        PartialMatch,
+        PerfectMatch
+    };
+
+    std::vector<std::string> ViewCommandPalette::getCommandResults(std::string_view command) {
+        constexpr auto matchCommand = [](std::string_view currCommand, std::string_view commandToMatch) -> std::pair<MatchType, std::string_view> {
+            if (currCommand.empty()) {
+                return { MatchType::InfoMatch, "" };
+            }
+            else if (currCommand.size() <= commandToMatch.size()) {
+                if (commandToMatch.starts_with(currCommand))
+                    return { MatchType::PartialMatch, currCommand };
+                else
+                    return { MatchType::NoMatch, { } };
+            }
+            else {
+                if (currCommand.starts_with(commandToMatch))
+                    return { MatchType::PerfectMatch, currCommand.substr(commandToMatch.length()) };
+                else
+                    return { MatchType::NoMatch, { } };
+            }
+        };
+
+        std::vector<std::string> results;
+
+        if (auto [match, value] = matchCommand(command, "#"); match != MatchType::NoMatch) {
+            if (match != MatchType::PerfectMatch)
+                results.emplace_back("# (Calculator)");
+            else {
+                MathEvaluator evaluator;
+                evaluator.registerStandardVariables();
+                evaluator.registerStandardFunctions();
+
+                auto result = evaluator.evaluate(std::string(value));
+
+                if (result.has_value())
+                    results.emplace_back(hex::format("#%s = %Lf", value.data(), result.value()));
+                else
+                    results.emplace_back(hex::format("#%s = ???", value.data()));
+            }
+        }
+        if (auto [match, value] = matchCommand(command, "/find "); match != MatchType::NoMatch) {
+            if (match != MatchType::PerfectMatch)
+                results.emplace_back("/find (Find Command)");
+            else {
+                results.emplace_back(hex::format("Command: Find \"%s\"", value.data()));
+            }
+        }
+        if (auto [match, value] = matchCommand(command, ">"); match != MatchType::NoMatch) {
+            results.emplace_back("> (Command)");
+        }
+
+        return results;
+    }
+
+}