console.hpp

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#pragma once
 
#include "components/ui/imgui/imgui.h"
 
#include "components/resources/engine_globals/globals.h"
#include "components/resources/engine_text/engine_text.h"
#include "components/3rdparty/imgui/misc/imgui_stdlib.h"
#include "components/resources/console/console.h"
#include <Strings/components/classes/events/game_engine_events/LogMessage/LogMessage.h>
#include <Strings/components/classes/events/game_engine_events/KeyPress/KeyPressEvent.h>
#include <Strings/components/classes/events/events.h>
 
class BlamImGuiWindow_ImGuiConsole : public BlamImGuiWindow, public BlamEventListener
{
private:
    std::string input_buffer = "";
    std::vector<BlamLogMessage> history;
 
    bool focused = false;
    bool needs_scroll = false;
    bool needs_reclaim_focus = false;
 
    void FireCommand()
    {
        Blam::Resources::Console::RunCommandLine(input_buffer);
        input_buffer.clear();
        input_buffer = "";
    }
 
public:
    BlamImGuiWindow_ImGuiConsole()
    {
        Subscribe(BlamEventType::LogMessage);
        Subscribe(BlamEventType::KeyPress);
        BlamStrings::Events::RegisterListener(this, "imgui_console");
    }
 
    ~BlamImGuiWindow_ImGuiConsole()
    {
        BlamStrings::Events::UnregisterListener(this);
    }
 
    void OnLogMessageEvent(LogMessageEvent* event)
    {
        history.push_back(event->GetLogMessage());
        needs_scroll = true;
    }
 
    void OnKeyPressEvent(KeyPressEvent* event)
    {
        if (focused)
        {
            if (event->GetVirtualKey() == SDLK_RETURN)
            {
                FireCommand();
                needs_reclaim_focus = true;
            }
        }
    }
 
    void Draw()
    {
        if (show)
        {
            if (ImGui::Begin("Console", &show))
            {
                float window_width = ImGui::GetWindowContentRegionWidth();
                float window_height = ImGui::GetWindowHeight() - (70 * *Blam::Globals::GetGlobalAsFloat("ui_scale_factor"));
 
                if (ImGui::BeginChildFrame(ImGuiID("log_output"), ImVec2(window_width, window_height),
                    ImGuiWindowFlags_AlwaysVerticalScrollbar | ImGuiWindowFlags_HorizontalScrollbar))
                {
                    for (int i = 0; i < history.size(); i++)
                    {
                        BlamColor color = history.at(i).color;
                        ImVec4 message_color = ImVec4(color.GetRedAsFloat(), color.GetGreenAsFloat(), color.GetBlueAsFloat(), color.GetAlphaAsFloat());
 
                        ImGui::PushID(std::string("console_item_" + std::to_string(i)).c_str());
                        ImGui::TextColored(message_color, history.at(i).message.c_str());
                        ImGui::PopID();
                    }
 
                    if (needs_scroll)
                    {
                        ImGui::SetScrollHereY(1.0f);
                        needs_scroll = false;
                    }
                }
                ImGui::EndChildFrame();
 
                ImGui::Separator();
 
                ImGui::Text(ENGINE_TEXT("console_prompt_label").c_str());
 
                ImGui::SameLine();
 
                ImGui::SetItemDefaultFocus();
                ImGui::InputText("", &input_buffer);
 
                if (needs_reclaim_focus)
                {
                    ImGui::SetKeyboardFocusHere(-1);
                    needs_reclaim_focus = false;
                }
 
                focused = ImGui::IsItemActive();
 
                ImGui::SameLine();
 
                if (ImGui::Button("Run Command"))
                {
                    FireCommand();
                }
            }
            ImGui::End();
        }
    }
};