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- // SuperTux - Console
- // Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
- //
- // 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
- // along with this program. If not, see <http://www.gnu.org/licenses/>.
- #ifndef HEADER_SUPERTUX_SUPERTUX_CONSOLE_HPP
- #define HEADER_SUPERTUX_SUPERTUX_CONSOLE_HPP
- #include <list>
- #include <squirrel.h>
- #include <sstream>
- #include <vector>
- #include "util/currenton.hpp"
- #include "video/font_ptr.hpp"
- #include "video/surface_ptr.hpp"
- class Console;
- class ConsoleStreamBuffer;
- class DrawingContext;
- class ConsoleBuffer final : public Currenton<ConsoleBuffer>
- {
- public:
- static std::ostream output; /**< stream of characters to output to the console. Do not forget to send std::endl or to flush the stream. */
- static ConsoleStreamBuffer s_outputBuffer; /**< stream buffer used by output stream */
- public:
- std::list<std::string> m_lines; /**< backbuffer of lines sent to the console. New lines get added to front. */
- Console* m_console;
- public:
- ConsoleBuffer();
- void addLines(const std::string& s); /**< display a string of (potentially) multiple lines in the console */
- void addLine(const std::string& s); /**< display a line in the console */
- void flush(ConsoleStreamBuffer& buffer); /**< act upon changes in a ConsoleStreamBuffer */
- void set_console(Console* console);
- private:
- ConsoleBuffer(const ConsoleBuffer&) = delete;
- ConsoleBuffer& operator=(const ConsoleBuffer&) = delete;
- };
- class Console final : public Currenton<Console>
- {
- public:
- Console(ConsoleBuffer& buffer);
- ~Console() override;
- void on_buffer_change(int line_count);
- void input(char c); /**< add character to inputBuffer */
- void backspace(); /**< delete character left of inputBufferPosition */
- void eraseChar(); /**< delete character at inputBufferPosition */
- void enter(); /**< process and clear input stream */
- void scroll(int offset); /**< scroll console text up or down by @c offset lines */
- void autocomplete(); /**< autocomplete current command */
- void show_history(int offset); /**< move @c offset lines forward through history; Negative offset moves backward */
- void move_cursor(int offset); /**< move the cursor @c offset chars to the right; Negative offset moves backward; 0xFFFF moves to the end */
- void draw(DrawingContext& context) const; /**< draw the console in a DrawingContext */
- void update(float dt_sec);
- void show(); /**< display the console */
- void open(); /**< open the console for viewing for 6 seconds */
- void hide(); /**< hide the console */
- void toggle(); /**< display the console if hidden, hide otherwise */
- bool hasFocus() const; /**< true if characters should be sent to the console instead of their normal target */
- private:
- ConsoleBuffer& m_buffer;
- std::string m_inputBuffer; /**< string used for keyboard input */
- int m_inputBufferPosition; /**< position in inputBuffer before which to append new characters */
- std::list<std::string> m_history; /**< command history. New lines get added to back. */
- std::list<std::string>::iterator m_history_position; /**< item of command history that is currently displayed */
- SurfacePtr m_background; /**< console background image */
- SurfacePtr m_background2; /**< second, moving console background image */
- HSQUIRRELVM m_vm; /**< squirrel thread for the console (with custom roottable) */
- HSQOBJECT m_vm_object;
- int m_backgroundOffset; /**< current offset of scrolling background image */
- float m_height; /**< height of the console in px */
- float m_alpha;
- int m_offset; /**< decrease to scroll text up */
- bool m_focused; /**< true if console has input focus */
- FontPtr m_font;
- float m_stayOpen;
- void parse(const std::string& s); /**< react to a given command */
- /** ready a virtual machine instance, creating a new thread and loading default .nut files if needed */
- void ready_vm();
- /** execute squirrel script and output result */
- void execute_script(const std::string& s);
- bool consoleCommand(const std::string& command, const std::vector<std::string>& arguments); /**< process internal command; return false if command was unknown, true otherwise */
- private:
- Console(const Console&) = delete;
- Console & operator=(const Console&) = delete;
- };
- class ConsoleStreamBuffer final : public std::stringbuf
- {
- public:
- virtual int sync() override
- {
- int result = std::stringbuf::sync();
- if (ConsoleBuffer::current())
- ConsoleBuffer::current()->flush(*this);
- return result;
- }
- };
- #endif
- /* EOF */
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