gui2::event Namespace Reference

Namespaces
	implementation

Classes
class	dispatcher
	Base class for event handling. More...
struct	dispatcher_implementation
class	resource_locker
	Small helper to keep a resource (boolean) locked. More...
class	mouse_motion
class	mouse_button
class	distributor
	The event handler class for the widget library. More...
class	sdl_event_handler
	This singleton class handles all events. More...
class	manager
struct	message
	The message callbacks hold a reference to a message. More...
struct	message_show_tooltip
	The message for MESSAGE_SHOW_TOOLTIP. More...
struct	message_show_helptip
	The message for MESSAGE_SHOW_HELPTIP. More...

Typedefs
template<typename... T>
using	dispatcher_callback = std::function< void(widget &, const ui_event, bool &, bool &, T...)>
	Callback function signature alias template. More...
using	signal = dispatcher_callback<>
	Used for events in event_category::general. More...
using	signal_mouse = dispatcher_callback< const point & >
	Used for events in event_category::mouse. More...
using	signal_keyboard = dispatcher_callback< const SDL_Keycode, const SDL_Keymod, const std::string & >
	Used for events in event_category::keyboard. More...
using	signal_touch_motion = dispatcher_callback< const point &, const point & >
	Used for events in event_category::touch_motion. More...
using	signal_touch_gesture = dispatcher_callback< const point &, float, float, uint8_t >
	Used for events in event_category::touch_gesture. More...
using	signal_notification = dispatcher_callback< void * >
	Used for events in event_category::notification. More...
using	signal_message = dispatcher_callback< const message & >
	Used for events in event_category::message. More...
using	signal_raw_event = dispatcher_callback< const SDL_Event & >
	Used for events in event_category::raw_event. More...
using	signal_text_input = dispatcher_callback< const std::string &, int32_t, int32_t >
	Used for eventsin event_category::text_input. More...
using	hotkey_function = std::function< void(widget &dispatcher, hotkey::HOTKEY_COMMAND id)>
	Hotkey function handler signature. More...
using	mouse_button_left = mouse_button< 0 >
using	mouse_button_middle = mouse_button< 1 >
using	mouse_button_right = mouse_button< 2 >

Enumerations
enum class	event_category : uint32_t {   general = 1u << 8 , mouse = 1u << 9 , keyboard = 1u << 10 , touch_motion = 1u << 11 ,   touch_gesture = 1u << 12 , notification = 1u << 13 , message = 1u << 14 , raw_event = 1u << 15 ,   text_input = 1u << 16 }
	Event category masks. More...
enum	ui_event : uint32_t {   DRAW = encode_category(1 , event_category::general) , CLOSE_WINDOW = encode_category(2 , event_category::general) , MOUSE_ENTER = encode_category(3 , event_category::general) , MOUSE_LEAVE = encode_category(4 , event_category::general) ,   LEFT_BUTTON_DOWN = encode_category(5 , event_category::general) , LEFT_BUTTON_UP = encode_category(6 , event_category::general) , LEFT_BUTTON_CLICK = encode_category(7 , event_category::general) , LEFT_BUTTON_DOUBLE_CLICK = encode_category(8 , event_category::general) ,   MIDDLE_BUTTON_DOWN = encode_category(9 , event_category::general) , MIDDLE_BUTTON_UP = encode_category(10, event_category::general) , MIDDLE_BUTTON_CLICK = encode_category(11, event_category::general) , MIDDLE_BUTTON_DOUBLE_CLICK = encode_category(12, event_category::general) ,   RIGHT_BUTTON_DOWN = encode_category(13, event_category::general) , RIGHT_BUTTON_UP = encode_category(14, event_category::general) , RIGHT_BUTTON_CLICK = encode_category(15, event_category::general) , RIGHT_BUTTON_DOUBLE_CLICK = encode_category(16, event_category::general) ,   SDL_VIDEO_RESIZE = encode_category(17, event_category::mouse) , SDL_MOUSE_MOTION = encode_category(18, event_category::mouse) , MOUSE_MOTION = encode_category(19, event_category::mouse) , SDL_LEFT_BUTTON_DOWN = encode_category(20, event_category::mouse) ,   SDL_LEFT_BUTTON_UP = encode_category(21, event_category::mouse) , SDL_MIDDLE_BUTTON_DOWN = encode_category(22, event_category::mouse) , SDL_MIDDLE_BUTTON_UP = encode_category(23, event_category::mouse) , SDL_RIGHT_BUTTON_DOWN = encode_category(24, event_category::mouse) ,   SDL_RIGHT_BUTTON_UP = encode_category(25, event_category::mouse) , SDL_WHEEL_LEFT = encode_category(26, event_category::mouse) , SDL_WHEEL_RIGHT = encode_category(27, event_category::mouse) , SDL_WHEEL_UP = encode_category(28, event_category::mouse) ,   SDL_WHEEL_DOWN = encode_category(29, event_category::mouse) , SHOW_TOOLTIP = encode_category(30, event_category::mouse) , SHOW_HELPTIP = encode_category(31, event_category::mouse) , SDL_TOUCH_UP = encode_category(32, event_category::mouse) ,   SDL_TOUCH_DOWN = encode_category(33, event_category::mouse) , SDL_KEY_DOWN = encode_category(34, event_category::keyboard) , SDL_TEXT_INPUT = encode_category(35, event_category::text_input) , SDL_TEXT_EDITING = encode_category(36, event_category::text_input) ,   SDL_ACTIVATE = encode_category(37, event_category::notification) , NOTIFY_REMOVAL = encode_category(38, event_category::notification) , NOTIFY_MODIFIED = encode_category(39, event_category::notification) , NOTIFY_REMOVE_TOOLTIP = encode_category(40, event_category::notification) ,   RECEIVE_KEYBOARD_FOCUS = encode_category(41, event_category::notification) , LOSE_KEYBOARD_FOCUS = encode_category(42, event_category::notification) , REQUEST_PLACEMENT = encode_category(43, event_category::message) , MESSAGE_SHOW_TOOLTIP = encode_category(44, event_category::message) ,   MESSAGE_SHOW_HELPTIP = encode_category(45, event_category::message) , SDL_TOUCH_MOTION = encode_category(46, event_category::touch_motion) , SDL_TOUCH_MULTI_GESTURE = encode_category(47, event_category::touch_gesture) , SDL_RAW_EVENT = encode_category(48, event_category::raw_event) }
	The event sent to the dispatcher. More...

Functions
void	connect_signal_pre_key_press (dispatcher &dispatcher, const signal_keyboard &signal)
	Connects the signal for 'snooping' on the keypress. More...
void	connect_signal_mouse_left_click (dispatcher &dispatcher, const signal &signal)
	Connects a signal handler for a left mouse button click. More...
void	disconnect_signal_mouse_left_click (dispatcher &dispatcher, const signal &signal)
	Disconnects a signal handler for a left mouse button click. More...
void	connect_signal_mouse_left_release (dispatcher &dispatcher, const signal &signal)
	Connects a signal handler for a left mouse button release. More...
void	disconnect_signal_mouse_left_release (dispatcher &dispatcher, const signal &signal)
	Disconnects a signal handler for a left mouse button release. More...
void	connect_signal_mouse_left_double_click (dispatcher &dispatcher, const signal &signal)
	Connects a signal handler for a left mouse button double click. More...
void	connect_signal_notify_modified (dispatcher &dispatcher, const signal_notification &signal)
	Connects a signal handler for getting a notification upon modification. More...
void	connect_signal_on_draw (dispatcher &dispatcher, const signal &signal)
	Connects a signal handler for a callback when the widget is drawn. More...
template<event_category C, typename... F>
bool	fire_event (const ui_event event, dispatcher *d, widget *w, F &&... params)
	Fires an event. More...
template<ui_event click, ui_event double_click, bool(event_executor::*)() const wants_double_click, typename... F>
bool	fire_event_double_click (dispatcher *dsp, widget *wgt, F &&... params)
void	connect_dispatcher (dispatcher *dispatcher)
	Connects a dispatcher to the event handler. More...
void	disconnect_dispatcher (dispatcher *dispatcher)
	Disconnects a dispatcher to the event handler. More...
std::vector< dispatcher * > &	get_all_dispatchers ()
	Gets all event dispatchers in the Z order. More...
void	init_mouse_location ()
	Initializes the location of the mouse. More...
void	capture_mouse (dispatcher *dispatcher)
	Captures the mouse. More...
void	release_mouse (dispatcher *dispatcher)
	Releases a captured mouse. More...
void	capture_keyboard (dispatcher *dispatcher)
	Captures the keyboard. More...
std::ostream &	operator<< (std::ostream &stream, const ui_event event)
constexpr uint32_t	encode_category (const uint32_t input, const event_category mask)
constexpr bool	is_in_category (const ui_event event, const event_category mask)
	Checks if a given event is in a given category. More...
constexpr event_category	get_event_category (const ui_event event)
	Returns the category of a given event. More...

Variables
static std::unique_ptr< class sdl_event_handler >	handler_ = nullptr
static events::event_context *	event_context = nullptr

Typedef Documentation

dispatcher_callback

template<typename... T>

using gui2::event::dispatcher_callback = typedef std::function<void(widget&, const ui_event, bool&, bool&, T...)>

Callback function signature alias template.

All callbacks take these four arguments in addition to any arguments specified by the parameter pack.

Parameters:

1. The widget handling this event.
2. The event type.
3. Reference to the flag controlling whether this event has been handled.
4. Reference to the flag controlling whether to halt execution of this event.

Definition at line 51 of file dispatcher.hpp.

hotkey_function

using gui2::event::hotkey_function = typedef std::function<void(widget& dispatcher, hotkey::HOTKEY_COMMAND id)>

Hotkey function handler signature.

Definition at line 132 of file dispatcher.hpp.

mouse_button_left

using gui2::event::mouse_button_left = typedef mouse_button<0>

Definition at line 190 of file distributor.hpp.

mouse_button_middle

using gui2::event::mouse_button_middle = typedef mouse_button<1>

Definition at line 191 of file distributor.hpp.

mouse_button_right

using gui2::event::mouse_button_right = typedef mouse_button<2>

Definition at line 192 of file distributor.hpp.

signal

using gui2::event::signal = typedef dispatcher_callback<>

Used for events in event_category::general.

Definition at line 56 of file dispatcher.hpp.

signal_keyboard

using gui2::event::signal_keyboard = typedef dispatcher_callback<const SDL_Keycode, const SDL_Keymod, const std::string&>

Used for events in event_category::keyboard.

Extra parameters:

1. The keycode of the key that triggered this event.
2. Any applicable active modifer key.
3. Any applicable text associated with the key.

Definition at line 74 of file dispatcher.hpp.

signal_message

using gui2::event::signal_message = typedef dispatcher_callback<const message&>

Used for events in event_category::message.

Extra parameters:

1. The applicable data this event requires.

Definition at line 111 of file dispatcher.hpp.

signal_mouse

using gui2::event::signal_mouse = typedef dispatcher_callback<const point&>

Used for events in event_category::mouse.

Extra parameters:

1. The x,y coordinate of the mouse when this event is fired.

Definition at line 64 of file dispatcher.hpp.

signal_notification

using gui2::event::signal_notification = typedef dispatcher_callback<void*>

Used for events in event_category::notification.

Extra parameters:

1. A dummy void* parameter which will always be nullptr, used to differentiate this function from signal.

Definition at line 103 of file dispatcher.hpp.

signal_raw_event

using gui2::event::signal_raw_event = typedef dispatcher_callback<const SDL_Event&>

Used for events in event_category::raw_event.

Extra parameters:

1. The raw SDL_Event.

Definition at line 119 of file dispatcher.hpp.

signal_text_input

using gui2::event::signal_text_input = typedef dispatcher_callback<const std::string&, int32_t, int32_t>

Used for eventsin event_category::text_input.

Extra parameters:

1. The text entered.
2. The current input position.
3. The current text selection length.

Definition at line 129 of file dispatcher.hpp.

signal_touch_gesture

using gui2::event::signal_touch_gesture = typedef dispatcher_callback<const point&, float, float, uint8_t>

Used for events in event_category::touch_gesture.

Extra parameters: (TODO: document what these actually are)

1. center
2. dTheta
3. dDist
4. numFingers

Definition at line 94 of file dispatcher.hpp.

signal_touch_motion

using gui2::event::signal_touch_motion = typedef dispatcher_callback<const point&, const point&>

Used for events in event_category::touch_motion.

Extra parameters:

1. Origin of the touch event, in x,y format.
2. Number of pixels dragged, in x,y format.

Definition at line 83 of file dispatcher.hpp.

Enumeration Type Documentation

event_category

enum gui2::event::event_category : uint32_t

strong

Event category masks.

These begin at 2^8 to allow for 8 bits for the event identifiers themselves. This means ui_event can have up to 256 unique members. Since each mask needs its own place value, we can have 24 categories since ui_event's underlying type is 32 bits:

              USABLE CATEGORY BITS    NULL
           |------------------------|--------|
MASK        000000000000000000000000 00000000

              ENCODED CATEGORY        EVENT
           |------------------------|--------|
UI_EVENT    000000000000000000000000 00000000

Enumerator
general	Callbacks without extra parameters. Note Some mouse events like MOUSE_ENTER don't send the mouse coordinates to the callback function so they are also in this category.
mouse	Callbacks with a coordinate as extra parameter.
keyboard	Callbacks with the keyboard values (these haven't been determined yet).
touch_motion
touch_gesture
notification	Callbacks with a sender aka notification messages. Like general events it has no extra parameters, but this version is only sent to the target and does not use the pre and post queue.
message	Callbacks with a sender aka notification messages. Unlike the notifications this message is send through the chain. The event is sent from a widget all the way up to the window, who is always the receiver of the message (unless somebody grabbed it before).
raw_event
text_input

Definition at line 55 of file handler.hpp.

ui_event

enum gui2::event::ui_event : uint32_t

The event sent to the dispatcher.

Events prefixed by SDL are (semi)-real SDL events. The handler does some minor decoding like splitting the button down event to the proper event but nothing more. Events without an SDL prefix are generated by another signal eg the windows signal handler for SDL_MOUSE_MOTION can generate a MOUSE_ENTER, MOUSE_MOTION and MOUSE_LEAVE event and send that to it's children.

Note

When adding a new entry to the enum also add a unit test.

Enumerator
DRAW
CLOSE_WINDOW
MOUSE_ENTER
MOUSE_LEAVE
LEFT_BUTTON_DOWN
LEFT_BUTTON_UP
LEFT_BUTTON_CLICK
LEFT_BUTTON_DOUBLE_CLICK
MIDDLE_BUTTON_DOWN
MIDDLE_BUTTON_UP
MIDDLE_BUTTON_CLICK
MIDDLE_BUTTON_DOUBLE_CLICK
RIGHT_BUTTON_DOWN
RIGHT_BUTTON_UP
RIGHT_BUTTON_CLICK
RIGHT_BUTTON_DOUBLE_CLICK
SDL_VIDEO_RESIZE
SDL_MOUSE_MOTION
MOUSE_MOTION
SDL_LEFT_BUTTON_DOWN
SDL_LEFT_BUTTON_UP
SDL_MIDDLE_BUTTON_DOWN
SDL_MIDDLE_BUTTON_UP
SDL_RIGHT_BUTTON_DOWN
SDL_RIGHT_BUTTON_UP
SDL_WHEEL_LEFT
SDL_WHEEL_RIGHT
SDL_WHEEL_UP
SDL_WHEEL_DOWN
SHOW_TOOLTIP
SHOW_HELPTIP
SDL_TOUCH_UP
SDL_TOUCH_DOWN
SDL_KEY_DOWN
SDL_TEXT_INPUT	An SDL text input (commit) event.
SDL_TEXT_EDITING	An SDL text editing (IME) event.
SDL_ACTIVATE
NOTIFY_REMOVAL
NOTIFY_MODIFIED
NOTIFY_REMOVE_TOOLTIP
RECEIVE_KEYBOARD_FOCUS
LOSE_KEYBOARD_FOCUS
REQUEST_PLACEMENT
MESSAGE_SHOW_TOOLTIP
MESSAGE_SHOW_HELPTIP
SDL_TOUCH_MOTION
SDL_TOUCH_MULTI_GESTURE
SDL_RAW_EVENT

Definition at line 115 of file handler.hpp.

Function Documentation

capture_keyboard()

void gui2::event::capture_keyboard

(

dispatcher *

dispatcher

)

Captures the keyboard.

A dispatcher can capture the keyboard, when for example it's pressed on a button, this means all keyboard events after that are send to that widget.

Parameters

dispatcher

The dispatcher which should get the keyboard focus.

Definition at line 909 of file handler.cpp.

capture_mouse()

void gui2::event::capture_mouse

(

dispatcher *

dispatcher

)

Captures the mouse.

A dispatcher can capture the mouse, when for example it's pressed on a button, this means all mouse events after that are send to that widget.

Parameters

dispatcher

The dispatcher which should get the mouse focus.

Definition at line 893 of file handler.cpp.

References handler_.

Referenced by gui2::event::dispatcher::capture_mouse().

connect_dispatcher()

void gui2::event::connect_dispatcher

(

dispatcher *

dispatcher

)

Connects a dispatcher to the event handler.

Parameters

dispatcher

The dispatcher to connect.

Definition at line 860 of file handler.cpp.

References handler_.

Referenced by gui2::event::dispatcher::connect().

connect_signal_mouse_left_click()

void gui2::event::connect_signal_mouse_left_click	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Connects a signal handler for a left mouse button click.

Definition at line 177 of file dispatcher.cpp.

References gui2::event::dispatcher::connect_signal(), and LEFT_BUTTON_CLICK.

Referenced by gui2::dialogs::mp_staging::add_side_node(), gui2::dialogs::chat_log::view::bind(), gui2::dialogs::gamestate_inspector::controller::bind(), gui2::dialogs::lua_interpreter::controller::bind(), gui2::button::connect_click_handler(), gui2::dialogs::mp_options_helper::display_custom_options(), gui2::dialogs::editor_choose_addon::editor_choose_addon(), gui2::dialogs::editor_edit_pbl::editor_edit_pbl(), gui2::unit_preview_pane::finalize_setup(), gui2::chatbox::find_or_create_window(), gui2::dialogs::mp_join_game::generate_side_list(), gui2::dialogs::preferences_dialog::initialize_callbacks(), gui2::window::layout(), gui2::dialogs::addon_connect::pre_show(), gui2::dialogs::addon_manager::pre_show(), gui2::dialogs::community_dialog::pre_show(), gui2::dialogs::custom_tod::pre_show(), gui2::dialogs::editor_edit_unit::pre_show(), gui2::dialogs::editor_generate_map::pre_show(), gui2::dialogs::file_dialog::pre_show(), gui2::dialogs::formula_debugger::pre_show(), gui2::dialogs::game_cache_options::pre_show(), gui2::dialogs::game_load::pre_show(), gui2::dialogs::game_version::pre_show(), gui2::dialogs::language_selection::pre_show(), gui2::dialogs::mp_lobby::pre_show(), gui2::dialogs::mp_match_history::pre_show(), gui2::dialogs::mp_alerts_options::pre_show(), gui2::dialogs::mp_connect::pre_show(), gui2::dialogs::mp_create_game::pre_show(), gui2::dialogs::mp_method_selection::pre_show(), gui2::dialogs::lobby_player_info::pre_show(), gui2::dialogs::synched_choice_wait::pre_show(), gui2::dialogs::preferences_dialog::pre_show(), gui2::dialogs::screenshot_notification::pre_show(), gui2::dialogs::select_orb_colors::pre_show(), gui2::dialogs::story_viewer::pre_show(), gui2::dialogs::unit_advance::pre_show(), gui2::dialogs::unit_attack::pre_show(), gui2::dialogs::unit_recall::pre_show(), gui2::dialogs::unit_recruit::pre_show(), gui2::dialogs::wml_error::pre_show(), gui2::dialogs::register_button(), gui2::addon_list::set_addons(), gui2::dialogs::select_orb_colors::setup_orb_group_two_color(), gui2::dialogs::select_orb_colors::setup_orb_toggle(), gui2::dialogs::setup_pref_toggle_button(), and gui2::dialogs::mp_match_history::update_display().

connect_signal_mouse_left_double_click()

void gui2::event::connect_signal_mouse_left_double_click	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Connects a signal handler for a left mouse button double click.

I'm not exactly sure why this works in this queue position with toggle panels, but it does. Will revisit if it becomes an issue later (ie, if this is used with other widgets and doesn't work).

• vultraz, 2017-08-23

Definition at line 198 of file dispatcher.cpp.

References gui2::event::dispatcher::back_post_child, gui2::event::dispatcher::connect_signal(), and LEFT_BUTTON_DOUBLE_CLICK.

Referenced by gui2::dialogs::mp_lobby::adjust_game_row_contents(), and gui2::lobby_player_list_helper::update().

connect_signal_mouse_left_release()

void gui2::event::connect_signal_mouse_left_release	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Connects a signal handler for a left mouse button release.

Definition at line 187 of file dispatcher.cpp.

References gui2::event::dispatcher::connect_signal(), and LEFT_BUTTON_UP.

Referenced by gui2::dialogs::preferences_dialog::initialize_callbacks().

connect_signal_notify_modified()

void gui2::event::connect_signal_notify_modified	(	dispatcher &	dispatcher,
		const signal_notification &	signal
	)

Connects a signal handler for getting a notification upon modification.

Definition at line 203 of file dispatcher.cpp.

References gui2::event::dispatcher::connect_signal(), and NOTIFY_MODIFIED.

Referenced by gui2::dialogs::mp_staging::add_side_node(), gui2::dialogs::chat_log::view::bind(), gui2::dialogs::gamestate_inspector::controller::bind(), gui2::bind_status_label(), gui2::dialogs::mp_options_helper::display_custom_options(), gui2::dialogs::editor_edit_pbl::editor_edit_pbl(), gui2::listbox::finalize(), gui2::chatbox::finalize_setup(), gui2::scrollbar_container::finalize_setup(), gui2::policy::select_action::selection::init(), gui2::field_bool::init_specialized(), gui2::dialogs::preferences_dialog::initialize_callbacks(), gui2::dialogs::preferences_dialog::initialize_sound_option_group(), gui2::dialogs::preferences_dialog::initialize_tabs(), intf_set_dialog_callback(), gui2::dialogs::achievements_dialog::pre_show(), gui2::dialogs::addon_manager::pre_show(), gui2::dialogs::campaign_selection::pre_show(), gui2::dialogs::core_selection::pre_show(), gui2::dialogs::drop_down_menu::pre_show(), gui2::dialogs::edit_text::pre_show(), gui2::dialogs::custom_tod::pre_show(), gui2::dialogs::editor_edit_unit::pre_show(), gui2::dialogs::editor_generate_map::pre_show(), gui2::dialogs::generator_settings::pre_show(), gui2::dialogs::editor_resize_map::pre_show(), gui2::dialogs::tod_new_schedule::pre_show(), gui2::dialogs::file_dialog::pre_show(), gui2::dialogs::game_load::pre_show(), gui2::dialogs::game_stats::pre_show(), gui2::dialogs::game_version::pre_show(), gui2::dialogs::help_browser::pre_show(), gui2::dialogs::label_settings::pre_show(), gui2::dialogs::faction_select::pre_show(), gui2::dialogs::mp_lobby::pre_show(), gui2::dialogs::mp_change_control::pre_show(), gui2::dialogs::mp_connect::pre_show(), gui2::dialogs::mp_create_game::pre_show(), gui2::dialogs::preferences_dialog::pre_show(), gui2::dialogs::server_info::pre_show(), gui2::dialogs::statistics_dialog::pre_show(), gui2::dialogs::unit_advance::pre_show(), gui2::dialogs::unit_create::pre_show(), gui2::dialogs::unit_list::pre_show(), gui2::dialogs::unit_recall::pre_show(), gui2::dialogs::unit_recruit::pre_show(), gui2::group< T >::set_callback_on_value_change(), gui2::addon_list::set_modified_signal_handler(), and gui2::dialogs::mp_match_history::update_display().

connect_signal_on_draw()

void gui2::event::connect_signal_on_draw	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Connects a signal handler for a callback when the widget is drawn.

Definition at line 208 of file dispatcher.cpp.

References gui2::event::dispatcher::connect_signal(), DRAW, and gui2::event::dispatcher::front_child.

connect_signal_pre_key_press()

void gui2::event::connect_signal_pre_key_press	(	dispatcher &	dispatcher,
		const signal_keyboard &	signal
	)

Connects the signal for 'snooping' on the keypress.

This callback is called before the widget itself allowing you to either snoop on the input or filter it.

Definition at line 172 of file dispatcher.cpp.

References gui2::event::dispatcher::connect_signal(), gui2::event::dispatcher::front_child, and SDL_KEY_DOWN.

Referenced by gui2::dialogs::lua_interpreter::controller::bind(), gui2::chatbox::finalize_setup(), gui2::dialogs::end_credits::pre_show(), gui2::dialogs::game_load::pre_show(), gui2::dialogs::mp_lobby::pre_show(), gui2::dialogs::screenshot_notification::pre_show(), and gui2::dialogs::story_viewer::pre_show().

disconnect_dispatcher()

void gui2::event::disconnect_dispatcher

(

dispatcher *

dispatcher

)

Disconnects a dispatcher to the event handler.

Parameters

dispatcher

The dispatcher to disconnect.

Definition at line 867 of file handler.cpp.

References handler_.

Referenced by gui2::event::dispatcher::disconnect().

disconnect_signal_mouse_left_click()

void gui2::event::disconnect_signal_mouse_left_click	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Disconnects a signal handler for a left mouse button click.

Definition at line 182 of file dispatcher.cpp.

References gui2::event::dispatcher::disconnect_signal(), and LEFT_BUTTON_CLICK.

Referenced by gui2::button::disconnect_click_handler().

disconnect_signal_mouse_left_release()

void gui2::event::disconnect_signal_mouse_left_release	(	dispatcher &	dispatcher,
		const signal &	signal
	)

Disconnects a signal handler for a left mouse button release.

Definition at line 192 of file dispatcher.cpp.

References gui2::event::dispatcher::disconnect_signal(), and LEFT_BUTTON_UP.

encode_category()

constexpr uint32_t gui2::event::encode_category ( const uint32_t  input, const event_category  mask  )

constexpr

Definition at line 96 of file handler.hpp.

fire_event()

template<event_category C, typename... F>

bool gui2::event::fire_event	(	const ui_event	event,
		dispatcher *	d,
		widget *	w,
		F &&...	params
	)

Fires an event.

A helper to allow the common event firing code to be shared between the different signal function types.

Precondition

d != nullptr

w != nullptr

Template Parameters

C	The category of the event to handle.
F	The parameter pack type.

Parameters

event	The event to fire.
d	The dispatcher that handles the event.
w	The widget that should receive the event.
params	Zero or more additional arguments to pass to the signal function when it's executed.

Returns

Whether or not the event was handled.

Definition at line 322 of file dispatcher_private.hpp.

References d, and w.

fire_event_double_click()

template<ui_event click, ui_event double_click, bool(event_executor::*)() const wants_double_click, typename... F>

bool gui2::event::fire_event_double_click	(	dispatcher *	dsp,
		widget *	wgt,
		F &&...	params
	)

Definition at line 339 of file dispatcher_private.hpp.

References tooltips::click(), d, get_event_category(), gui2::event::dispatcher::post, gui2::event::dispatcher::pre, and w.

Referenced by gui2::event::dispatcher::fire().

get_all_dispatchers()

std::vector< dispatcher * > & gui2::event::get_all_dispatchers

(

)

Gets all event dispatchers in the Z order.

Definition at line 874 of file handler.cpp.

References handler_.

get_event_category()

constexpr event_category gui2::event::get_event_category ( const ui_event  event )

constexpr

Returns the category of a given event.

Note

Since each event has only one category flag set, it is safe to simply do an equality check with this result, which would return the same as is_in_category.

Definition at line 192 of file handler.hpp.

Referenced by fire_event_double_click(), and gui2::event::dispatcher_implementation::has_handler().

init_mouse_location()

void gui2::event::init_mouse_location

(

)

Initializes the location of the mouse.

After a layout of the window the mouse location needs to be updated to test whether it entered or left a widget. Also after closing a window it's needed to send a dummy mouse move.

Definition at line 880 of file handler.cpp.

References gui2::get_mouse_position(), and mouse.

Referenced by gui2::event::distributor::initialize_state(), and gui2::window::layout().

is_in_category()

constexpr bool gui2::event::is_in_category ( const ui_event  event, const event_category  mask  )

constexpr

Checks if a given event is in a given category.

Note

Even though all events currently have only one category bitflag set, this function works correctly if they ever have multiple flags set, unlike get_event_category.

Definition at line 180 of file handler.hpp.

Referenced by gui2::event::dispatcher::fire().

operator<<()

std::ostream & gui2::event::operator<<	(	std::ostream &	stream,
		const ui_event	event
	)

Definition at line 918 of file handler.cpp.

References CLOSE_WINDOW, DRAW, LEFT_BUTTON_CLICK, LEFT_BUTTON_DOUBLE_CLICK, LEFT_BUTTON_DOWN, LEFT_BUTTON_UP, LOSE_KEYBOARD_FOCUS, MESSAGE_SHOW_HELPTIP, MESSAGE_SHOW_TOOLTIP, MIDDLE_BUTTON_CLICK, MIDDLE_BUTTON_DOUBLE_CLICK, MIDDLE_BUTTON_DOWN, MIDDLE_BUTTON_UP, MOUSE_ENTER, MOUSE_LEAVE, MOUSE_MOTION, NOTIFY_MODIFIED, NOTIFY_REMOVAL, NOTIFY_REMOVE_TOOLTIP, RECEIVE_KEYBOARD_FOCUS, REQUEST_PLACEMENT, RIGHT_BUTTON_CLICK, RIGHT_BUTTON_DOUBLE_CLICK, RIGHT_BUTTON_DOWN, RIGHT_BUTTON_UP, SDL_ACTIVATE, SDL_KEY_DOWN, SDL_LEFT_BUTTON_DOWN, SDL_LEFT_BUTTON_UP, SDL_MIDDLE_BUTTON_DOWN, SDL_MIDDLE_BUTTON_UP, SDL_MOUSE_MOTION, SDL_RAW_EVENT, SDL_RIGHT_BUTTON_DOWN, SDL_RIGHT_BUTTON_UP, SDL_TEXT_EDITING, SDL_TEXT_INPUT, SDL_TOUCH_DOWN, SDL_TOUCH_MOTION, SDL_TOUCH_MULTI_GESTURE, SDL_TOUCH_UP, SDL_VIDEO_RESIZE, SDL_WHEEL_DOWN, SDL_WHEEL_LEFT, SDL_WHEEL_RIGHT, SDL_WHEEL_UP, SHOW_HELPTIP, and SHOW_TOOLTIP.

release_mouse()

void gui2::event::release_mouse

(

dispatcher *

dispatcher

)

Releases a captured mouse.

Parameters

dispatcher

The dispatcher which should release the mouse capture.

Definition at line 900 of file handler.cpp.

References handler_.

Referenced by gui2::event::dispatcher::release_mouse().

Variable Documentation

event_context

events::event_context* gui2::event::event_context = nullptr

static

Definition at line 62 of file handler.cpp.

Referenced by gui2::event::sdl_event_handler::connect(), and gui2::event::sdl_event_handler::disconnect().

handler_

std::unique_ptr<class sdl_event_handler> gui2::event::handler_ = nullptr

static

Definition at line 61 of file handler.cpp.

Referenced by capture_mouse(), connect_dispatcher(), disconnect_dispatcher(), get_all_dispatchers(), gui2::event::manager::manager(), release_mouse(), and gui2::event::manager::~manager().