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/*
* Copyright (C) 2023 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2023 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 11 сент. 2017 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_UTIL_KEYBOARDHANDLER_H_
#define LSP_PLUG_IN_TK_UTIL_KEYBOARDHANDLER_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
class KeyboardHandler: public ws::IEventHandler
{
protected:
enum constants_t
{
RPT_BUF_SIZE = 64
};
protected:
size_t nPause; // Pause before repeat
size_t nRepeat; // Repeat
size_t nRepeatSize; // Number of elements in repeat buffer
ws::event_t sLast; // Last received event
ws::code_t vRepeat[RPT_BUF_SIZE]; // Repeat buffer
Timer sTimer; // Timer to simulate character repeat
protected:
status_t process_key_down(const ws::event_t *e);
status_t process_key_up(const ws::event_t *e);
static status_t simulate_repeat(ws::timestamp_t ts, void *arg);
void simulate_repeat(ws::timestamp_t ts);
public:
explicit KeyboardHandler();
KeyboardHandler(const KeyboardHandler &) = delete;
KeyboardHandler(KeyboardHandler &&) = delete;
virtual ~KeyboardHandler() override;
KeyboardHandler & operator = (KeyboardHandler &&) = delete;
KeyboardHandler & operator = (const KeyboardHandler &) = delete;
status_t init(Display *dpy);
public:
size_t pause_time() const { return nPause; }
size_t repeat_time() const { return nRepeat; }
public:
void set_pause_time(size_t value);
void set_repeat_time(size_t value);
public:
static ws::code_t translate_keypad(ws::code_t code);
public:
// Event handling callbacks
virtual status_t handle_event(const ws::event_t *e) override;
// Event handling callbacks
virtual status_t on_key_down(const ws::event_t *e);
virtual status_t on_key_press(const ws::event_t *e);
virtual status_t on_key_up(const ws::event_t *e);
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_UTIL_KEYBOARDHANDLER_H_ */
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