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RetroArch/menu/menu_event.c
twinaphex 14d66749cc Document menu_event.c
2017-07-31 18:26:18 +02:00

350 lines
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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2014-2017 - Jean-André Santoni
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <string/stdstring.h>
#include "widgets/menu_input_dialog.h"
#include "widgets/menu_osk.h"
#include "menu_driver.h"
#include "menu_animation.h"
#include "../configuration.h"
#include "../retroarch.h"
#include "../tasks/tasks_internal.h"
static unsigned char menu_keyboard_key_state[RETROK_LAST] = {0};
/* This function gets called for handling pointer events.
*
* Pointer events are touchscreen events that are spawned
* by touchpad/touchscreen. */
static int menu_event_pointer(unsigned *action)
{
rarch_joypad_info_t joypad_info;
int pointer_x, pointer_y;
size_t fb_pitch;
unsigned fb_width, fb_height;
const struct retro_keybind *binds[MAX_USERS] = {NULL};
menu_input_t *menu_input = menu_input_get_ptr();
int pointer_device = menu_driver_is_texture_set()
?
RETRO_DEVICE_POINTER : RARCH_DEVICE_POINTER_SCREEN;
menu_display_get_fb_size(&fb_width, &fb_height,
&fb_pitch);
joypad_info.joy_idx = 0;
joypad_info.auto_binds = NULL;
joypad_info.axis_threshold = 0.0f;
pointer_x =
current_input->input_state(current_input_data, joypad_info, binds,
0, pointer_device, 0, RETRO_DEVICE_ID_POINTER_X);
pointer_y =
current_input->input_state(current_input_data, joypad_info, binds,
0, pointer_device, 0, RETRO_DEVICE_ID_POINTER_Y);
menu_input->pointer.pressed[0] = current_input->input_state(current_input_data,
joypad_info,
binds,
0, pointer_device, 0, RETRO_DEVICE_ID_POINTER_PRESSED);
menu_input->pointer.pressed[1] = current_input->input_state(current_input_data,
joypad_info,
binds,
0, pointer_device, 1, RETRO_DEVICE_ID_POINTER_PRESSED);
menu_input->pointer.back = current_input->input_state(current_input_data,
joypad_info,
binds,
0, pointer_device, 0, RARCH_DEVICE_ID_POINTER_BACK);
menu_input->pointer.x = ((pointer_x + 0x7fff) * (int)fb_width) / 0xFFFF;
menu_input->pointer.y = ((pointer_y + 0x7fff) * (int)fb_height) / 0xFFFF;
return 0;
}
/* Check if a specific keyboard key has been pressed. */
unsigned char menu_event_kb_is_set(enum retro_key key)
{
return menu_keyboard_key_state[key];
}
/* Set a specific keyboard key latch. */
static void menu_event_kb_set_internal(unsigned idx, unsigned char key)
{
menu_keyboard_key_state[idx] = key;
}
/* Set a specific keyboard key.
*
* 'down' sets the latch (true would
* mean the key is being pressed down, while 'false' would mean that
* the key has been released).
**/
void menu_event_kb_set(bool down, enum retro_key key)
{
if (key == RETROK_UNKNOWN)
{
unsigned i;
for (i = 0; i < RETROK_LAST; i++)
menu_event_kb_set_internal(i, (menu_event_kb_is_set((enum retro_key)i) & 1) << 1);
}
else
menu_event_kb_set_internal(key, ((menu_event_kb_is_set(key) & 1) << 1) | down);
}
/*
* This function gets called in order to process all input events
* for the current frame.
*
* Sends input code to menu for one frame.
*
* It uses as input the local variables' input' and 'trigger_input'.
*
* Mouse and touch input events get processed inside this function.
*
* NOTE: 'input' and 'trigger_input' is sourced from the keyboard and/or
* the gamepad. It does not contain input state derived from the mouse
* and/or touch - this gets dealt with separately within this function.
*
* TODO/FIXME - maybe needs to be overhauled so we can send multiple
* events per frame if we want to, and we shouldn't send the
* entire button state either but do a separate event per button
* state.
*/
unsigned menu_event(uint64_t input, uint64_t trigger_input)
{
menu_animation_ctx_delta_t delta;
float delta_time;
/* Used for key repeat */
static float delay_timer = 0.0f;
static float delay_count = 0.0f;
unsigned ret = MENU_ACTION_NOOP;
static bool initial_held = true;
static bool first_held = false;
bool set_scroll = false;
bool mouse_enabled = false;
size_t new_scroll_accel = 0;
menu_input_t *menu_input = NULL;
settings_t *settings = config_get_ptr();
static unsigned ok_old = 0;
bool input_swap_override = input_autoconfigure_get_swap_override();
unsigned menu_ok_btn = (!input_swap_override &&
settings->bools.input_menu_swap_ok_cancel_buttons) ?
RETRO_DEVICE_ID_JOYPAD_B : RETRO_DEVICE_ID_JOYPAD_A;
unsigned menu_cancel_btn = (!input_swap_override &&
settings->bools.input_menu_swap_ok_cancel_buttons) ?
RETRO_DEVICE_ID_JOYPAD_A : RETRO_DEVICE_ID_JOYPAD_B;
unsigned ok_current = (unsigned)(input & UINT64_C(1) << menu_ok_btn);
unsigned ok_trigger = ok_current & ~ok_old;
ok_old = ok_current;
if (input)
{
if (!first_held)
{
/* don't run anything first frame, only capture held inputs
* for old_input_state. */
first_held = true;
delay_timer = initial_held ? 12 : 6;
delay_count = 0;
}
if (delay_count >= delay_timer)
{
uint64_t input_repeat = 0;
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_UP);
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_DOWN);
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_LEFT);
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_RIGHT);
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_L);
BIT32_SET(input_repeat, RETRO_DEVICE_ID_JOYPAD_R);
set_scroll = true;
first_held = false;
trigger_input |= input & input_repeat;
menu_driver_ctl(MENU_NAVIGATION_CTL_GET_SCROLL_ACCEL,
&new_scroll_accel);
new_scroll_accel = MIN(new_scroll_accel + 1, 64);
}
initial_held = false;
}
else
{
set_scroll = true;
first_held = false;
initial_held = true;
}
if (set_scroll)
menu_driver_ctl(MENU_NAVIGATION_CTL_SET_SCROLL_ACCEL,
&new_scroll_accel);
menu_animation_ctl(MENU_ANIMATION_CTL_DELTA_TIME, &delta_time);
delta.current = delta_time;
if (menu_animation_get_ideal_delta_time(&delta))
delay_count += delta.ideal;
if (menu_input_dialog_get_display_kb())
{
menu_event_osk_iterate();
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_DOWN))
{
if (menu_event_get_osk_ptr() < 33)
menu_event_set_osk_ptr(menu_event_get_osk_ptr() + OSK_CHARS_PER_LINE);
}
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_UP))
{
if (menu_event_get_osk_ptr() >= OSK_CHARS_PER_LINE)
menu_event_set_osk_ptr(menu_event_get_osk_ptr() - OSK_CHARS_PER_LINE);
}
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_RIGHT))
{
if (menu_event_get_osk_ptr() < 43)
menu_event_set_osk_ptr(menu_event_get_osk_ptr() + 1);
}
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_LEFT))
{
if (menu_event_get_osk_ptr() >= 1)
menu_event_set_osk_ptr(menu_event_get_osk_ptr() - 1);
}
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_L))
{
if (menu_event_get_osk_idx() > OSK_TYPE_UNKNOWN + 1)
menu_event_set_osk_idx((enum osk_type)(menu_event_get_osk_idx() - 1));
else
menu_event_set_osk_idx((enum osk_type)(OSK_TYPE_LAST - 1));
}
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_R))
{
if (menu_event_get_osk_idx() < OSK_TYPE_LAST - 1)
menu_event_set_osk_idx((enum osk_type)(menu_event_get_osk_idx() + 1));
else
menu_event_set_osk_idx((enum osk_type)(OSK_TYPE_UNKNOWN + 1));
}
if (trigger_input & (UINT64_C(1) << menu_ok_btn))
{
if (menu_event_get_osk_ptr() >= 0)
menu_event_osk_append(menu_event_get_osk_ptr());
}
if (trigger_input & (UINT64_C(1) << menu_cancel_btn))
{
input_keyboard_event(true, '\x7f', '\x7f', 0, RETRO_DEVICE_KEYBOARD);
}
/* send return key to close keyboard input window */
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_START))
input_keyboard_event(true, '\n', '\n', 0, RETRO_DEVICE_KEYBOARD);
trigger_input = 0;
}
else
{
if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_UP))
ret = MENU_ACTION_UP;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_DOWN))
ret = MENU_ACTION_DOWN;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_LEFT))
ret = MENU_ACTION_LEFT;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_RIGHT))
ret = MENU_ACTION_RIGHT;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_L))
ret = MENU_ACTION_SCROLL_UP;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_R))
ret = MENU_ACTION_SCROLL_DOWN;
else if (ok_trigger)
ret = MENU_ACTION_OK;
else if (trigger_input & (UINT64_C(1) << menu_cancel_btn))
ret = MENU_ACTION_CANCEL;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_X))
ret = MENU_ACTION_SEARCH;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_Y))
ret = MENU_ACTION_SCAN;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_START))
ret = MENU_ACTION_START;
else if (trigger_input & (UINT64_C(1) << RETRO_DEVICE_ID_JOYPAD_SELECT))
ret = MENU_ACTION_INFO;
else if (trigger_input & (UINT64_C(1) << RARCH_MENU_TOGGLE))
ret = MENU_ACTION_TOGGLE;
}
if (menu_event_kb_is_set(RETROK_F11))
{
command_event(CMD_EVENT_GRAB_MOUSE_TOGGLE, NULL);
menu_event_kb_set_internal(RETROK_F11, 0);
}
if (runloop_cmd_press(trigger_input, RARCH_QUIT_KEY))
return MENU_ACTION_QUIT;
mouse_enabled = settings->bools.menu_mouse_enable;
#ifdef HAVE_OVERLAY
if (!mouse_enabled)
mouse_enabled = !(settings->bools.input_overlay_enable
&& input_overlay_is_alive(overlay_ptr));
#endif
if (!(menu_input = menu_input_get_ptr()))
return 0;
if (!mouse_enabled)
menu_input->mouse.ptr = 0;
if (settings->bools.menu_pointer_enable)
menu_event_pointer(&ret);
else
{
menu_input->pointer.x = 0;
menu_input->pointer.y = 0;
menu_input->pointer.dx = 0;
menu_input->pointer.dy = 0;
menu_input->pointer.accel = 0;
menu_input->pointer.pressed[0] = false;
menu_input->pointer.pressed[1] = false;
menu_input->pointer.back = false;
menu_input->pointer.ptr = 0;
}
return ret;
}
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