742 lines
17 KiB
C++
742 lines
17 KiB
C++
/* Copyright (C) 2022 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "CConsole.h"
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#include "graphics/Canvas2D.h"
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#include "graphics/FontMetrics.h"
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#include "graphics/TextRenderer.h"
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#include "gui/CGUI.h"
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#include "gui/GUIManager.h"
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#include "lib/code_generation.h"
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#include "lib/timer.h"
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#include "lib/utf8.h"
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#include "maths/MathUtil.h"
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#include "ps/CLogger.h"
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#include "ps/ConfigDB.h"
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#include "ps/CStrInternStatic.h"
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#include "ps/Filesystem.h"
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#include "ps/GameSetup/Config.h"
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#include "ps/Globals.h"
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#include "ps/Hotkey.h"
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#include "ps/Profile.h"
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#include "ps/Pyrogenesis.h"
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#include "ps/VideoMode.h"
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#include "scriptinterface/ScriptInterface.h"
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#include "scriptinterface/JSON.h"
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#include <vector>
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#include <wctype.h>
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namespace
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{
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// For text being typed into the console.
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constexpr int CONSOLE_BUFFER_SIZE = 1024;
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const char* CONSOLE_FONT = "mono-10";
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} // anonymous namespace
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CConsole* g_Console = 0;
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CConsole::CConsole()
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{
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m_Toggle = false;
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m_Visible = false;
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m_VisibleFrac = 0.0f;
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m_Buffer = std::make_unique<wchar_t[]>(CONSOLE_BUFFER_SIZE);
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FlushBuffer();
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m_MsgHistPos = 1;
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m_CharsPerPage = 0;
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m_PrevTime = 0.0;
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m_CursorVisState = true;
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m_CursorBlinkRate = 0.5;
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m_QuitHotkeyWasShown = false;
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InsertMessage("[ 0 A.D. Console v0.15 ]");
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InsertMessage("");
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}
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CConsole::~CConsole() = default;
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void CConsole::Init()
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{
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// Initialise console history file
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m_MaxHistoryLines = 200;
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CFG_GET_VAL("console.history.size", m_MaxHistoryLines);
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m_HistoryFile = L"config/console.txt";
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LoadHistory();
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UpdateScreenSize(g_xres, g_yres);
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// Calculate and store the line spacing
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const CFontMetrics font{CStrIntern(CONSOLE_FONT)};
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m_FontHeight = font.GetLineSpacing();
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m_FontWidth = font.GetCharacterWidth(L'C');
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m_CharsPerPage = static_cast<size_t>(g_xres / m_FontWidth);
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// Offset by an arbitrary amount, to make it fit more nicely
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m_FontOffset = 7;
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m_CursorBlinkRate = 0.5;
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CFG_GET_VAL("gui.cursorblinkrate", m_CursorBlinkRate);
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}
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void CConsole::UpdateScreenSize(int w, int h)
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{
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m_X = 0;
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m_Y = 0;
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float height = h * 0.6f;
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m_Width = w / g_VideoMode.GetScale();
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m_Height = height / g_VideoMode.GetScale();
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}
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void CConsole::ShowQuitHotkeys()
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{
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if (m_QuitHotkeyWasShown)
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return;
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std::string str;
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for (const std::pair<const SDL_Scancode_, KeyMapping>& key : g_HotkeyMap)
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if (key.second.front().name == "console.toggle")
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str += (str.empty() ? "Press " : " / ") + FindScancodeName(static_cast<SDL_Scancode>(key.first));
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if (!str.empty())
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InsertMessage(str + " to quit.");
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m_QuitHotkeyWasShown = true;
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}
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void CConsole::ToggleVisible()
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{
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m_Toggle = true;
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m_Visible = !m_Visible;
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// TODO: this should be based on input focus, not visibility
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if (m_Visible)
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{
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ShowQuitHotkeys();
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SDL_StartTextInput();
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return;
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}
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SDL_StopTextInput();
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}
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void CConsole::SetVisible(bool visible)
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{
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if (visible != m_Visible)
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m_Toggle = true;
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m_Visible = visible;
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if (visible)
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{
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m_PrevTime = 0.0;
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m_CursorVisState = false;
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}
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}
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void CConsole::FlushBuffer()
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{
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// Clear the buffer and set the cursor and length to 0
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memset(m_Buffer.get(), '\0', sizeof(wchar_t) * CONSOLE_BUFFER_SIZE);
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m_BufferPos = m_BufferLength = 0;
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}
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void CConsole::Update(const float deltaRealTime)
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{
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if (m_Toggle)
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{
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const float AnimateTime = .30f;
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const float Delta = deltaRealTime / AnimateTime;
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if (m_Visible)
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{
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m_VisibleFrac += Delta;
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if (m_VisibleFrac > 1.0f)
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{
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m_VisibleFrac = 1.0f;
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m_Toggle = false;
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}
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}
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else
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{
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m_VisibleFrac -= Delta;
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if (m_VisibleFrac < 0.0f)
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{
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m_VisibleFrac = 0.0f;
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m_Toggle = false;
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}
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}
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}
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}
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void CConsole::Render(CCanvas2D& canvas)
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{
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if (!(m_Visible || m_Toggle))
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return;
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PROFILE3_GPU("console");
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DrawWindow(canvas);
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CTextRenderer textRenderer;
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textRenderer.SetCurrentFont(CStrIntern(CONSOLE_FONT));
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// Animation: slide in from top of screen.
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const float deltaY = (1.0f - m_VisibleFrac) * m_Height;
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textRenderer.Translate(m_X, m_Y - deltaY);
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DrawHistory(textRenderer);
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DrawBuffer(textRenderer);
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canvas.DrawText(textRenderer);
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}
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void CConsole::DrawWindow(CCanvas2D& canvas)
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{
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std::vector<CVector2D> points =
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{
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CVector2D{m_Width, 0.0f},
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CVector2D{1.0f, 0.0f},
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CVector2D{1.0f, m_Height - 1.0f},
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CVector2D{m_Width, m_Height - 1.0f},
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CVector2D{m_Width, 0.0f}
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};
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for (CVector2D& point : points)
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point += CVector2D{m_X, m_Y - (1.0f - m_VisibleFrac) * m_Height};
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canvas.DrawRect(CRect(points[1], points[3]), CColor(0.0f, 0.0f, 0.5f, 0.6f));
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canvas.DrawLine(points, 1.0f, CColor(0.5f, 0.5f, 0.0f, 0.6f));
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if (m_Height > m_FontHeight + 4)
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{
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points = {
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CVector2D{0.0f, m_Height - static_cast<float>(m_FontHeight) - 4.0f},
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CVector2D{m_Width, m_Height - static_cast<float>(m_FontHeight) - 4.0f}
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};
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for (CVector2D& point : points)
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point += CVector2D{m_X, m_Y - (1.0f - m_VisibleFrac) * m_Height};
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canvas.DrawLine(points, 1.0f, CColor(0.5f, 0.5f, 0.0f, 0.6f));
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}
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}
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void CConsole::DrawHistory(CTextRenderer& textRenderer)
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{
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int i = 1;
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std::deque<std::wstring>::iterator it; //History iterator
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std::lock_guard<std::mutex> lock(m_Mutex); // needed for safe access to m_deqMsgHistory
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textRenderer.SetCurrentColor(CColor(1.0f, 1.0f, 1.0f, 1.0f));
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for (it = m_MsgHistory.begin();
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it != m_MsgHistory.end()
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&& (((i - m_MsgHistPos + 1) * m_FontHeight) < m_Height);
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++it)
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{
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if (i >= m_MsgHistPos)
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{
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textRenderer.Put(
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9.0f,
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m_Height - static_cast<float>(m_FontOffset) - static_cast<float>(m_FontHeight) * (i - m_MsgHistPos + 1),
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it->c_str());
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}
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i++;
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}
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}
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// Renders the buffer to the screen.
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void CConsole::DrawBuffer(CTextRenderer& textRenderer)
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{
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if (m_Height < m_FontHeight)
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return;
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const CVector2D savedTranslate = textRenderer.GetTranslate();
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textRenderer.Translate(2.0f, m_Height - static_cast<float>(m_FontOffset) + 1.0f);
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textRenderer.SetCurrentColor(CColor(1.0f, 1.0f, 0.0f, 1.0f));
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textRenderer.PutAdvance(L"]");
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textRenderer.SetCurrentColor(CColor(1.0f, 1.0f, 1.0f, 1.0f));
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if (m_BufferPos == 0)
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DrawCursor(textRenderer);
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for (int i = 0; i < m_BufferLength; ++i)
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{
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textRenderer.PrintfAdvance(L"%lc", m_Buffer[i]);
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if (m_BufferPos - 1 == i)
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DrawCursor(textRenderer);
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}
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textRenderer.ResetTranslate(savedTranslate);
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}
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void CConsole::DrawCursor(CTextRenderer& textRenderer)
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{
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if (m_CursorBlinkRate > 0.0)
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{
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// check if the cursor visibility state needs to be changed
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double currTime = timer_Time();
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if ((currTime - m_PrevTime) >= m_CursorBlinkRate)
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{
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m_CursorVisState = !m_CursorVisState;
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m_PrevTime = currTime;
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}
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}
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else
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{
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// Should always be visible
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m_CursorVisState = true;
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}
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if(m_CursorVisState)
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{
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// Slightly translucent yellow
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textRenderer.SetCurrentColor(CColor(1.0f, 1.0f, 0.0f, 0.8f));
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// Cursor character is chosen to be an underscore
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textRenderer.Put(0.0f, 0.0f, L"_");
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// Revert to the standard text color
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textRenderer.SetCurrentColor(CColor(1.0f, 1.0f, 1.0f, 1.0f));
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}
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}
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bool CConsole::IsEOB() const
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{
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return m_BufferPos == m_BufferLength;
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}
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bool CConsole::IsBOB() const
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{
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return m_BufferPos == 0;
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}
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bool CConsole::IsFull() const
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{
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return m_BufferLength == CONSOLE_BUFFER_SIZE;
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}
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bool CConsole::IsEmpty() const
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{
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return m_BufferLength == 0;
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}
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//Inserts a character into the buffer.
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void CConsole::InsertChar(const int szChar, const wchar_t cooked)
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{
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static int historyPos = -1;
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if (!m_Visible) return;
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switch (szChar)
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{
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case SDLK_RETURN:
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historyPos = -1;
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m_MsgHistPos = 1;
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ProcessBuffer(m_Buffer.get());
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FlushBuffer();
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return;
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case SDLK_TAB:
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// Auto Complete
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return;
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case SDLK_BACKSPACE:
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if (IsEmpty() || IsBOB()) return;
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if (m_BufferPos == m_BufferLength)
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m_Buffer[m_BufferPos - 1] = '\0';
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else
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{
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for (int j = m_BufferPos-1; j < m_BufferLength - 1; ++j)
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m_Buffer[j] = m_Buffer[j + 1]; // move chars to left
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m_Buffer[m_BufferLength-1] = '\0';
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}
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m_BufferPos--;
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m_BufferLength--;
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return;
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case SDLK_DELETE:
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if (IsEmpty() || IsEOB())
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return;
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if (m_BufferPos == m_BufferLength - 1)
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{
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m_Buffer[m_BufferPos] = '\0';
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m_BufferLength--;
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}
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else
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{
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if (g_scancodes[SDL_SCANCODE_LCTRL] || g_scancodes[SDL_SCANCODE_RCTRL])
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{
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// Make Ctrl-Delete delete up to end of line
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m_Buffer[m_BufferPos] = '\0';
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m_BufferLength = m_BufferPos;
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}
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else
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{
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// Delete just one char and move the others left
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for(int j = m_BufferPos; j < m_BufferLength - 1; ++j)
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m_Buffer[j] = m_Buffer[j + 1];
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m_Buffer[m_BufferLength - 1] = '\0';
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m_BufferLength--;
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}
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}
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return;
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case SDLK_HOME:
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if (g_scancodes[SDL_SCANCODE_LCTRL] || g_scancodes[SDL_SCANCODE_RCTRL])
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{
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std::lock_guard<std::mutex> lock(m_Mutex); // needed for safe access to m_deqMsgHistory
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const int linesShown = static_cast<int>(m_Height / m_FontHeight) - 4;
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m_MsgHistPos = Clamp(static_cast<int>(m_MsgHistory.size()) - linesShown, 1, static_cast<int>(m_MsgHistory.size()));
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}
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else
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{
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m_BufferPos = 0;
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}
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return;
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case SDLK_END:
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if (g_scancodes[SDL_SCANCODE_LCTRL] || g_scancodes[SDL_SCANCODE_RCTRL])
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{
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m_MsgHistPos = 1;
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}
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else
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{
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m_BufferPos = m_BufferLength;
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}
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return;
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case SDLK_LEFT:
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if (m_BufferPos)
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m_BufferPos--;
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return;
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case SDLK_RIGHT:
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if (m_BufferPos != m_BufferLength)
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m_BufferPos++;
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return;
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// BEGIN: Buffer History Lookup
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case SDLK_UP:
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if (m_BufHistory.size() && historyPos != static_cast<int>(m_BufHistory.size()) - 1)
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{
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historyPos++;
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SetBuffer(m_BufHistory.at(historyPos).c_str());
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m_BufferPos = m_BufferLength;
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}
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return;
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case SDLK_DOWN:
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if (m_BufHistory.size())
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{
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if (historyPos > 0)
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{
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historyPos--;
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SetBuffer(m_BufHistory.at(historyPos).c_str());
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m_BufferPos = m_BufferLength;
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}
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else if (historyPos == 0)
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{
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historyPos--;
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FlushBuffer();
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}
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}
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return;
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// END: Buffer History Lookup
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// BEGIN: Message History Lookup
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case SDLK_PAGEUP:
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{
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std::lock_guard<std::mutex> lock(m_Mutex); // needed for safe access to m_deqMsgHistory
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if (m_MsgHistPos != static_cast<int>(m_MsgHistory.size()))
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m_MsgHistPos++;
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return;
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}
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case SDLK_PAGEDOWN:
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if (m_MsgHistPos != 1)
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m_MsgHistPos--;
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return;
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// END: Message History Lookup
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default: //Insert a character
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if (IsFull() || cooked == 0)
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return;
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if (IsEOB()) //are we at the end of the buffer?
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m_Buffer[m_BufferPos] = cooked; //cat char onto end
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else
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{ //we need to insert
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int i;
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for (i = m_BufferLength; i > m_BufferPos; --i)
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m_Buffer[i] = m_Buffer[i - 1]; // move chars to right
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m_Buffer[i] = cooked;
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}
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m_BufferPos++;
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m_BufferLength++;
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return;
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}
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}
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void CConsole::InsertMessage(const std::string& message)
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{
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// (TODO: this text-wrapping is rubbish since we now use variable-width fonts)
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//Insert newlines to wraparound text where needed
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std::wstring wrapAround = wstring_from_utf8(message.c_str());
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std::wstring newline(L"\n");
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size_t oldNewline=0;
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size_t distance;
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//make sure everything has been initialized
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if (m_CharsPerPage != 0)
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{
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while (oldNewline + m_CharsPerPage < wrapAround.length())
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{
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distance = wrapAround.find(newline, oldNewline) - oldNewline;
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if (distance > m_CharsPerPage)
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{
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oldNewline += m_CharsPerPage;
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wrapAround.insert(oldNewline++, newline);
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}
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else
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oldNewline += distance+1;
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}
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}
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// Split into lines and add each one individually
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oldNewline = 0;
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{
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std::lock_guard<std::mutex> lock(m_Mutex); // needed for safe access to m_deqMsgHistory
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while ( (distance = wrapAround.find(newline, oldNewline)) != wrapAround.npos)
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{
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distance -= oldNewline;
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m_MsgHistory.push_front(wrapAround.substr(oldNewline, distance));
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|
oldNewline += distance+1;
|
|
}
|
|
m_MsgHistory.push_front(wrapAround.substr(oldNewline));
|
|
}
|
|
}
|
|
|
|
const wchar_t* CConsole::GetBuffer()
|
|
{
|
|
m_Buffer[m_BufferLength] = 0;
|
|
return m_Buffer.get();
|
|
}
|
|
|
|
void CConsole::SetBuffer(const wchar_t* szMessage)
|
|
{
|
|
int oldBufferPos = m_BufferPos; // remember since FlushBuffer will set it to 0
|
|
|
|
FlushBuffer();
|
|
|
|
wcsncpy(m_Buffer.get(), szMessage, CONSOLE_BUFFER_SIZE);
|
|
m_Buffer[CONSOLE_BUFFER_SIZE-1] = 0;
|
|
m_BufferLength = static_cast<int>(wcslen(m_Buffer.get()));
|
|
m_BufferPos = std::min(oldBufferPos, m_BufferLength);
|
|
}
|
|
|
|
void CConsole::ProcessBuffer(const wchar_t* szLine)
|
|
{
|
|
if (!szLine || wcslen(szLine) <= 0)
|
|
return;
|
|
|
|
ENSURE(wcslen(szLine) < CONSOLE_BUFFER_SIZE);
|
|
|
|
m_BufHistory.push_front(szLine);
|
|
SaveHistory(); // Do this each line for the moment; if a script causes
|
|
// a crash it's a useful record.
|
|
|
|
// Process it as JavaScript
|
|
std::shared_ptr<ScriptInterface> pScriptInterface = g_GUI->GetActiveGUI()->GetScriptInterface();
|
|
ScriptRequest rq(*pScriptInterface);
|
|
|
|
JS::RootedValue rval(rq.cx);
|
|
pScriptInterface->Eval(CStrW(szLine).ToUTF8().c_str(), &rval);
|
|
if (!rval.isUndefined())
|
|
InsertMessage(Script::ToString(rq, &rval));
|
|
}
|
|
|
|
void CConsole::LoadHistory()
|
|
{
|
|
// note: we don't care if this file doesn't exist or can't be read;
|
|
// just don't load anything in that case.
|
|
|
|
// do this before LoadFile to avoid an error message if file not found.
|
|
if (!VfsFileExists(m_HistoryFile))
|
|
return;
|
|
|
|
std::shared_ptr<u8> buf; size_t buflen;
|
|
if (g_VFS->LoadFile(m_HistoryFile, buf, buflen) < 0)
|
|
return;
|
|
|
|
CStr bytes ((char*)buf.get(), buflen);
|
|
|
|
CStrW str (bytes.FromUTF8());
|
|
size_t pos = 0;
|
|
while (pos != CStrW::npos)
|
|
{
|
|
pos = str.find('\n');
|
|
if (pos != CStrW::npos)
|
|
{
|
|
if (pos > 0)
|
|
m_BufHistory.push_front(str.Left(str[pos-1] == '\r' ? pos - 1 : pos));
|
|
str = str.substr(pos + 1);
|
|
}
|
|
else if (str.length() > 0)
|
|
m_BufHistory.push_front(str);
|
|
}
|
|
}
|
|
|
|
void CConsole::SaveHistory()
|
|
{
|
|
WriteBuffer buffer;
|
|
const int linesToSkip = static_cast<int>(m_BufHistory.size()) - m_MaxHistoryLines;
|
|
std::deque<std::wstring>::reverse_iterator it = m_BufHistory.rbegin();
|
|
if(linesToSkip > 0)
|
|
std::advance(it, linesToSkip);
|
|
for (; it != m_BufHistory.rend(); ++it)
|
|
{
|
|
CStr8 line = CStrW(*it).ToUTF8();
|
|
buffer.Append(line.data(), line.length());
|
|
static const char newline = '\n';
|
|
buffer.Append(&newline, 1);
|
|
}
|
|
|
|
if (g_VFS->CreateFile(m_HistoryFile, buffer.Data(), buffer.Size()) == INFO::OK)
|
|
ONCE(debug_printf("FILES| Console command history written to '%s'\n", m_HistoryFile.string8().c_str()));
|
|
else
|
|
debug_printf("FILES| Failed to write console command history to '%s'\n", m_HistoryFile.string8().c_str());
|
|
}
|
|
|
|
static bool isUnprintableChar(SDL_Keysym key)
|
|
{
|
|
switch (key.sym)
|
|
{
|
|
// We want to allow some, which are handled specially
|
|
case SDLK_RETURN: case SDLK_TAB:
|
|
case SDLK_BACKSPACE: case SDLK_DELETE:
|
|
case SDLK_HOME: case SDLK_END:
|
|
case SDLK_LEFT: case SDLK_RIGHT:
|
|
case SDLK_UP: case SDLK_DOWN:
|
|
case SDLK_PAGEUP: case SDLK_PAGEDOWN:
|
|
return true;
|
|
|
|
// Ignore the others
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
InReaction conInputHandler(const SDL_Event_* ev)
|
|
{
|
|
if (!g_Console)
|
|
return IN_PASS;
|
|
|
|
if (static_cast<int>(ev->ev.type) == SDL_HOTKEYPRESS)
|
|
{
|
|
std::string hotkey = static_cast<const char*>(ev->ev.user.data1);
|
|
|
|
if (hotkey == "console.toggle")
|
|
{
|
|
ResetActiveHotkeys();
|
|
g_Console->ToggleVisible();
|
|
return IN_HANDLED;
|
|
}
|
|
else if (g_Console->IsActive() && hotkey == "copy")
|
|
{
|
|
std::string text = utf8_from_wstring(g_Console->GetBuffer());
|
|
SDL_SetClipboardText(text.c_str());
|
|
return IN_HANDLED;
|
|
}
|
|
else if (g_Console->IsActive() && hotkey == "paste")
|
|
{
|
|
char* utf8_text = SDL_GetClipboardText();
|
|
if (!utf8_text)
|
|
return IN_HANDLED;
|
|
|
|
std::wstring text = wstring_from_utf8(utf8_text);
|
|
SDL_free(utf8_text);
|
|
|
|
for (wchar_t c : text)
|
|
g_Console->InsertChar(0, c);
|
|
|
|
return IN_HANDLED;
|
|
}
|
|
}
|
|
|
|
if (!g_Console->IsActive())
|
|
return IN_PASS;
|
|
|
|
// In SDL2, we no longer get Unicode wchars via SDL_Keysym
|
|
// we use text input events instead and they provide UTF-8 chars
|
|
if (ev->ev.type == SDL_TEXTINPUT)
|
|
{
|
|
// TODO: this could be more efficient with an interface to insert UTF-8 strings directly
|
|
std::wstring wstr = wstring_from_utf8(ev->ev.text.text);
|
|
for (size_t i = 0; i < wstr.length(); ++i)
|
|
g_Console->InsertChar(0, wstr[i]);
|
|
return IN_HANDLED;
|
|
}
|
|
// TODO: text editing events for IME support
|
|
|
|
if (ev->ev.type != SDL_KEYDOWN && ev->ev.type != SDL_KEYUP)
|
|
return IN_PASS;
|
|
|
|
int sym = ev->ev.key.keysym.sym;
|
|
|
|
// Stop unprintable characters (ctrl+, alt+ and escape).
|
|
if (ev->ev.type == SDL_KEYDOWN && isUnprintableChar(ev->ev.key.keysym) &&
|
|
!HotkeyIsPressed("console.toggle"))
|
|
{
|
|
g_Console->InsertChar(sym, 0);
|
|
return IN_HANDLED;
|
|
}
|
|
|
|
// We have a probably printable key - we should return HANDLED so it can't trigger hotkeys.
|
|
// However, if Ctrl/Meta modifiers are active (or it's escape), just pass it through instead,
|
|
// assuming that we are indeed trying to trigger hotkeys (e.g. copy/paste).
|
|
// Also ignore the key if we are trying to toggle the console off.
|
|
// See also similar logic in CInput.cpp
|
|
if (EventWillFireHotkey(ev, "console.toggle") ||
|
|
g_scancodes[SDL_SCANCODE_LCTRL] || g_scancodes[SDL_SCANCODE_RCTRL] ||
|
|
g_scancodes[SDL_SCANCODE_LGUI] || g_scancodes[SDL_SCANCODE_RGUI])
|
|
return IN_PASS;
|
|
|
|
return IN_HANDLED;
|
|
}
|