/
gui_console.cpp
151 lines (133 loc) · 4.51 KB
/
gui_console.cpp
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//<Elypso engine>
// Copyright(C) < 2024 > < Greenlaser >
//
// This program is free software : you can redistribute it and /or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License in LICENCE.md
// and a copy of the EULA in EULA.md along with this program.
// If not, see < https://github.com/Lost-Empire-Entertainment/Elypso-engine >.
//external
#include "imgui.h"
#include "imgui_impl_glfw.h"
#include "imgui_impl_opengl3.h"
#include "imgui_internal.h"
//engine
#include "gui.hpp"
#include "core.hpp"
#include "console.hpp"
#include "gui_console.hpp"
#include "render.hpp"
using Graphics::Render;
using Core::Engine;
using Core::ConsoleManager;
using Caller = Core::ConsoleManager::Caller;
using Type = Core::ConsoleManager::Type;
namespace Graphics::GUI
{
void GUIConsole::RenderConsole()
{
ImGui::SetNextWindowSizeConstraints(EngineGUI::minSize, EngineGUI::maxSize);
ImGui::SetNextWindowPos(EngineGUI::initialPos, ImGuiCond_FirstUseEver);
ImGuiWindowFlags windowFlags =
ImGuiWindowFlags_NoCollapse;
if (renderConsole
&& ImGui::Begin("Console", NULL, windowFlags))
{
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetWindowWidth() - 40);
if (ImGui::Button("X"))
{
renderConsole = false;
}
//text area with scrollable region
ImVec2 scrollingRegionSize(
ImGui::GetContentRegionAvail().x,
ImGui::GetContentRegionAvail().y - 25);
ImGui::BeginChild("ScrollingRegion", scrollingRegionSize, true);
float wrapWidth = ImGui::GetContentRegionAvail().x - 10;
ImGui::PushTextWrapPos(ImGui::GetCursorPos().x + wrapWidth);
//display the content of the text buffer
for (const auto& message : consoleMessages)
{
ImGui::TextWrapped("%s", message.c_str());
}
ImGui::PopTextWrapPos();
//scrolls to the bottom if scrolling is allowed
//and if user is close to the newest console message
if (allowScrollToBottom)
{
bool isNearBottom = ImGui::GetScrollY() >= ImGui::GetScrollMaxY() - 10.0f;
if (isNearBottom
|| (!firstScrollToBottom
&& Engine::startedWindowLoop))
{
ImGui::SetScrollHereY(1.0f);
firstScrollToBottom = true;
}
}
ImGui::EndChild();
//text filter input box
float textAreaHeight = ImGui::GetContentRegionAvail().y - 25.0f;
ImGui::SetCursorScreenPos(ImVec2(ImGui::GetCursorScreenPos().x, ImGui::GetCursorScreenPos().y + textAreaHeight));
// Draw the text filter input box
ImGui::PushItemWidth(scrollingRegionSize.x);
ImGuiInputTextFlags inputFieldTextFlags =
ImGuiInputTextFlags_EnterReturnsTrue;
//press enter to insert install path
if (ImGui::InputTextWithHint(
"##inputfield",
"Enter command...",
inputTextBuffer,
sizeof(inputTextBuffer),
inputFieldTextFlags,
[](ImGuiInputTextCallbackData* data) -> int
{
//allow inserting text with Ctrl+V
if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_V)) &&
ImGui::GetIO().KeyCtrl)
{
const char* clipboardText = glfwGetClipboardString(Render::window);
if (clipboardText)
{
//insert clipboard text into the input buffer
int textLength = strlen(clipboardText);
int availableSpace = data->BufSize - data->BufTextLen;
int copyLength = ImMin(textLength, availableSpace - 1); //leave space for null terminator
if (copyLength > 0)
{
memcpy(data->Buf + data->CursorPos, clipboardText, copyLength);
data->CursorPos += copyLength;
data->BufTextLen += copyLength;
data->Buf[data->CursorPos] = '\0';
}
}
}
return 0;
}))
{
ConsoleManager::ParseConsoleCommand(inputTextBuffer);
if (allowScrollToBottom) ImGui::SetScrollHereY(1.0f);
memset(inputTextBuffer, 0, sizeof(inputTextBuffer));
}
ImGui::PopItemWidth();
ImGui::End();
}
}
void GUIConsole::AddTextToConsole(const string& message)
{
consoleMessages.push_back(message);
//erases the first added message if a new one was added and count exceeded max count
while (consoleMessages.size() > maxConsoleMessages)
{
consoleMessages.erase(consoleMessages.begin());
}
}
}