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stk-code_catmod/lib/irrlicht/include/IEventReceiver.h
Benau 3a62d5179e Fix in game chat dialog crash
2020-07-15 15:56:53 +08:00

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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __I_EVENT_RECEIVER_H_INCLUDED__
#define __I_EVENT_RECEIVER_H_INCLUDED__
#include "ILogger.h"
#include "Keycodes.h"
#include "irrString.h"
namespace irr
{
//! Enumeration for all event types there are.
enum EEVENT_TYPE
{
//! An event of the graphical user interface.
/** GUI events are created by the GUI environment or the GUI elements in response
to mouse or keyboard events. When a GUI element receives an event it will either
process it and return true, or pass the event to its parent. If an event is not absorbed
before it reaches the root element then it will then be passed to the user receiver. */
EET_GUI_EVENT = 0,
//! A mouse input event.
/** Mouse events are created by the device and passed to IrrlichtDevice::postEventFromUser
in response to mouse input received from the operating system.
Mouse events are first passed to the user receiver, then to the GUI environment and its elements,
then finally the input receiving scene manager where it is passed to the active camera.
*/
EET_MOUSE_INPUT_EVENT,
//! A key input event.
/** Like mouse events, keyboard events are created by the device and passed to
IrrlichtDevice::postEventFromUser. They take the same path as mouse events. */
EET_KEY_INPUT_EVENT,
//! A touch input event.
EET_TOUCH_INPUT_EVENT,
//! A accelerometer event.
EET_ACCELEROMETER_EVENT,
//! A gyroscope event.
EET_GYROSCOPE_EVENT,
//! A device motion event.
EET_DEVICE_MOTION_EVENT,
//! A joystick (joypad, gamepad) input event.
/** Joystick events are created by polling all connected joysticks once per
device run() and then passing the events to IrrlichtDevice::postEventFromUser.
They take the same path as mouse events.
Windows, SDL: Implemented.
Linux: Implemented, with POV hat issues.
MacOS / Other: Not yet implemented.
*/
EET_JOYSTICK_INPUT_EVENT,
//! A log event
/** Log events are only passed to the user receiver if there is one. If they are absorbed by the
user receiver then no text will be sent to the console. */
EET_LOG_TEXT_EVENT,
//! A user event with user data.
/** This is not used by Irrlicht and can be used to send user
specific data though the system. The Irrlicht 'window handle'
can be obtained from IrrlichtDevice::getExposedVideoData()
The usage and behavior depends on the operating system:
Windows: send a WM_USER message to the Irrlicht Window; the
wParam and lParam will be used to populate the
UserData1 and UserData2 members of the SUserEvent.
Linux: send a ClientMessage via XSendEvent to the Irrlicht
Window; the data.l[0] and data.l[1] members will be
casted to s32 and used as UserData1 and UserData2.
MacOS: Not yet implemented
*/
EET_USER_EVENT,
//! Pass on raw events from the OS
EET_SYSTEM_EVENT,
//! Application state events like a resume, pause etc.
EET_APPLICATION_EVENT,
//! SDL text event
EET_SDL_TEXT_EVENT,
//! This enum is never used, it only forces the compiler to
//! compile these enumeration values to 32 bit.
EGUIET_FORCE_32_BIT = 0x7fffffff
};
//! Enumeration for all mouse input events
enum EMOUSE_INPUT_EVENT
{
//! Left mouse button was pressed down.
EMIE_LMOUSE_PRESSED_DOWN = 0,
//! Right mouse button was pressed down.
EMIE_RMOUSE_PRESSED_DOWN,
//! Middle mouse button was pressed down.
EMIE_MMOUSE_PRESSED_DOWN,
//! Left mouse button was left up.
EMIE_LMOUSE_LEFT_UP,
//! Right mouse button was left up.
EMIE_RMOUSE_LEFT_UP,
//! Middle mouse button was left up.
EMIE_MMOUSE_LEFT_UP,
//! The mouse cursor changed its position.
EMIE_MOUSE_MOVED,
//! The mouse wheel was moved. Use Wheel value in event data to find out
//! in what direction and how fast.
EMIE_MOUSE_WHEEL,
//! Left mouse button double click.
//! This event is generated after the second EMIE_LMOUSE_PRESSED_DOWN event.
EMIE_LMOUSE_DOUBLE_CLICK,
//! Right mouse button double click.
//! This event is generated after the second EMIE_RMOUSE_PRESSED_DOWN event.
EMIE_RMOUSE_DOUBLE_CLICK,
//! Middle mouse button double click.
//! This event is generated after the second EMIE_MMOUSE_PRESSED_DOWN event.
EMIE_MMOUSE_DOUBLE_CLICK,
//! Left mouse button triple click.
//! This event is generated after the third EMIE_LMOUSE_PRESSED_DOWN event.
EMIE_LMOUSE_TRIPLE_CLICK,
//! Right mouse button triple click.
//! This event is generated after the third EMIE_RMOUSE_PRESSED_DOWN event.
EMIE_RMOUSE_TRIPLE_CLICK,
//! Middle mouse button triple click.
//! This event is generated after the third EMIE_MMOUSE_PRESSED_DOWN event.
EMIE_MMOUSE_TRIPLE_CLICK,
//! No real event. Just for convenience to get number of events
EMIE_COUNT
};
//! Masks for mouse button states
enum E_MOUSE_BUTTON_STATE_MASK
{
EMBSM_LEFT = 0x01,
EMBSM_RIGHT = 0x02,
EMBSM_MIDDLE = 0x04,
//! currently only on windows
EMBSM_EXTRA1 = 0x08,
//! currently only on windows
EMBSM_EXTRA2 = 0x10,
EMBSM_FORCE_32_BIT = 0x7fffffff
};
//! Enumeration for all touch input events
enum ETOUCH_INPUT_EVENT
{
//! Touch was pressed down.
ETIE_PRESSED_DOWN = 0,
//! Touch was left up.
ETIE_LEFT_UP,
//! The touch changed its position.
ETIE_MOVED,
//! No real event. Just for convenience to get number of events
ETIE_COUNT
};
enum ESYSTEM_EVENT_TYPE
{
//! From Android command handler for native activity messages
ESET_ANDROID_CMD = 0,
// TODO: for example ESET_WINDOWS_MESSAGE for win32 message loop events
//! No real event, but to get number of event types
ESET_COUNT
};
//! Enumeration for a commonly used application state events (it's useful mainly for mobile devices)
enum EAPPLICATION_EVENT_TYPE
{
//! The application will be resumed.
EAET_WILL_RESUME = 0,
//! The application has been resumed.
EAET_DID_RESUME,
//! The application will be paused.
EAET_WILL_PAUSE,
//! The application has been paused.
EAET_DID_PAUSE,
//! The application will be terminated.
EAET_WILL_TERMINATE,
//! The application received a memory warning.
EAET_MEMORY_WARNING,
//! No real event, but to get number of event types.
EAET_COUNT
};
namespace gui
{
class IGUIElement;
//! Enumeration for all events which are sendable by the gui system
enum EGUI_EVENT_TYPE
{
//! A gui element has lost its focus.
/** GUIEvent.Caller is losing the focus to GUIEvent.Element.
If the event is absorbed then the focus will not be changed. */
EGET_ELEMENT_FOCUS_LOST = 0,
//! A gui element has got the focus.
/** If the event is absorbed then the focus will not be changed. */
EGET_ELEMENT_FOCUSED,
//! The mouse cursor hovered over a gui element.
/** If an element has sub-elements you also get this message for the subelements */
EGET_ELEMENT_HOVERED,
//! The mouse cursor left the hovered element.
/** If an element has sub-elements you also get this message for the subelements */
EGET_ELEMENT_LEFT,
//! An element would like to close.
/** Windows and context menus use this event when they would like to close,
this can be cancelled by absorbing the event. */
EGET_ELEMENT_CLOSED,
//! A button was clicked.
EGET_BUTTON_CLICKED,
//! A scrollbar has changed its position.
EGET_SCROLL_BAR_CHANGED,
//! A checkbox has changed its check state.
EGET_CHECKBOX_CHANGED,
//! A new item in a listbox was selected.
/** NOTE: You also get this event currently when the same item was clicked again after more than 500 ms. */
EGET_LISTBOX_CHANGED,
//! An item in the listbox was selected, which was already selected.
/** NOTE: You get the event currently only if the item was clicked again within 500 ms or selected by "enter" or "space". */
EGET_LISTBOX_SELECTED_AGAIN,
//! A file has been selected in the file dialog
EGET_FILE_SELECTED,
//! A directory has been selected in the file dialog
EGET_DIRECTORY_SELECTED,
//! A file open dialog has been closed without choosing a file
EGET_FILE_CHOOSE_DIALOG_CANCELLED,
//! 'Yes' was clicked on a messagebox
EGET_MESSAGEBOX_YES,
//! 'No' was clicked on a messagebox
EGET_MESSAGEBOX_NO,
//! 'OK' was clicked on a messagebox
EGET_MESSAGEBOX_OK,
//! 'Cancel' was clicked on a messagebox
EGET_MESSAGEBOX_CANCEL,
//! In an editbox 'ENTER' was pressed
EGET_EDITBOX_ENTER,
//! The text in an editbox was changed. This does not include automatic changes in text-breaking.
EGET_EDITBOX_CHANGED,
//! The marked area in an editbox was changed.
EGET_EDITBOX_MARKING_CHANGED,
//! The tab was changed in an tab control
EGET_TAB_CHANGED,
//! A menu item was selected in a (context) menu
EGET_MENU_ITEM_SELECTED,
//! The selection in a combo box has been changed
EGET_COMBO_BOX_CHANGED,
//! The value of a spin box has changed
EGET_SPINBOX_CHANGED,
//! A table has changed
EGET_TABLE_CHANGED,
EGET_TABLE_HEADER_CHANGED,
EGET_TABLE_SELECTED_AGAIN,
//! A tree view node lost selection. See IGUITreeView::getLastEventNode().
EGET_TREEVIEW_NODE_DESELECT,
//! A tree view node was selected. See IGUITreeView::getLastEventNode().
EGET_TREEVIEW_NODE_SELECT,
//! A tree view node was expanded. See IGUITreeView::getLastEventNode().
EGET_TREEVIEW_NODE_EXPAND,
//! A tree view node was collapsed. See IGUITreeView::getLastEventNode().
EGET_TREEVIEW_NODE_COLLAPSE,
//! deprecated - use EGET_TREEVIEW_NODE_COLLAPSE instead. This
//! may be removed by Irrlicht 1.9
EGET_TREEVIEW_NODE_COLLAPS = EGET_TREEVIEW_NODE_COLLAPSE,
//! No real event. Just for convenience to get number of events
EGET_COUNT
};
} // end namespace gui
//! SEvents hold information about an event. See irr::IEventReceiver for details on event handling.
struct SEvent
{
//! Any kind of GUI event.
struct SGUIEvent
{
//! IGUIElement who called the event
gui::IGUIElement* Caller;
//! If the event has something to do with another element, it will be held here.
gui::IGUIElement* Element;
//! Type of GUI Event
gui::EGUI_EVENT_TYPE EventType;
};
//! Any kind of mouse event.
struct SMouseInput
{
//! X position of mouse cursor
s32 X;
//! Y position of mouse cursor
s32 Y;
//! mouse wheel delta, often 1.0 or -1.0, but can have other values < 0.f or > 0.f;
/** Only valid if event was EMIE_MOUSE_WHEEL */
f32 Wheel;
//! True if shift was also pressed
bool Shift:1;
//! True if ctrl was also pressed
bool Control:1;
//! A bitmap of button states. You can use isButtonPressed() to determine
//! if a button is pressed or not.
//! Currently only valid if the event was EMIE_MOUSE_MOVED
u32 ButtonStates;
//! Is the left button pressed down?
bool isLeftPressed() const { return 0 != ( ButtonStates & EMBSM_LEFT ); }
//! Is the right button pressed down?
bool isRightPressed() const { return 0 != ( ButtonStates & EMBSM_RIGHT ); }
//! Is the middle button pressed down?
bool isMiddlePressed() const { return 0 != ( ButtonStates & EMBSM_MIDDLE ); }
//! Type of mouse event
EMOUSE_INPUT_EVENT Event;
};
//! Any kind of keyboard event.
struct SKeyInput
{
//! Character corresponding to the key (0, if not a character, value undefined in key releases)
char32_t Char;
//! Key which has been pressed or released
EKEY_CODE Key;
//! System dependent code. Only set for systems which are described below, otherwise undefined.
//! Android: int32_t with physical key as returned by AKeyEvent_getKeyCode
u32 SystemKeyCode;
//! If not true, then the key was left up
bool PressedDown:1;
//! True if shift was also pressed
bool Shift:1;
//! True if ctrl was also pressed
bool Control:1;
};
//! Any kind of touch event.
struct STouchInput
{
// Touch ID.
size_t ID;
// X position of simple touch.
s32 X;
// Y position of simple touch.
s32 Y;
//! Type of touch event.
ETOUCH_INPUT_EVENT Event;
};
//! Any kind of accelerometer event.
struct SAccelerometerEvent
{
// X acceleration.
f64 X;
// Y acceleration.
f64 Y;
// Z acceleration.
f64 Z;
};
//! Any kind of gyroscope event.
struct SGyroscopeEvent
{
// X rotation.
f64 X;
// Y rotation.
f64 Y;
// Z rotation.
f64 Z;
};
//! Any kind of device motion event.
struct SDeviceMotionEvent
{
// X angle - roll.
f64 X;
// Y angle - pitch.
f64 Y;
// Z angle - yaw.
f64 Z;
};
//! A joystick event.
/** Unlike other events, joystick events represent the result of polling
* each connected joystick once per run() of the device. Joystick events will
* not be generated by default. If joystick support is available for the
* active device, _IRR_COMPILE_WITH_JOYSTICK_EVENTS_ is defined, and
* @ref irr::IrrlichtDevice::activateJoysticks() has been called, an event of
* this type will be generated once per joystick per @ref IrrlichtDevice::run()
* regardless of whether the state of the joystick has actually changed. */
struct SJoystickEvent
{
enum
{
NUMBER_OF_BUTTONS = 32,
AXIS_X = 0, // e.g. analog stick 1 left to right
AXIS_Y, // e.g. analog stick 1 top to bottom
AXIS_Z, // e.g. throttle, or analog 2 stick 2 left to right
AXIS_R, // e.g. rudder, or analog 2 stick 2 top to bottom
AXIS_U,
AXIS_V,
NUMBER_OF_AXES = 32
};
/** For AXIS_X, AXIS_Y, AXIS_Z, AXIS_R, AXIS_U and AXIS_V
* Values are in the range -32768 to 32767, with 0 representing
* the center position. You will receive the raw value from the
* joystick, and so will usually want to implement a dead zone around
* the center of the range. Axes not supported by this joystick will
* always have a value of 0. On Linux, POV hats are represented as axes,
* usually the last two active axis.
*/
s16 Axis[NUMBER_OF_AXES];
//! The ID of the joystick which generated this event.
/** This is an internal Irrlicht index; it does not map directly
* to any particular hardware joystick. */
u32 AxisChanged;
/** A bitmap of button states. You can use IsButtonPressed() to
( check the state of each button from 0 to (NUMBER_OF_BUTTONS - 1) */
u32 ButtonStates;
//! The ID of the joystick which generated this event.
/** This is an internal Irrlicht index; it does not map directly
* to any particular hardware joystick. */
u32 Joystick;
//! A helper function to check if a button is pressed.
bool IsAxisChanged(u32 axis) const
{
if(axis >= (u32)NUMBER_OF_AXES)
return false;
return (AxisChanged & (1 << axis)) ? true : false;
}
//! A helper function to check if a button is pressed.
bool IsButtonPressed(u32 button) const
{
if(button >= (u32)NUMBER_OF_BUTTONS)
return false;
return (ButtonStates & (1 << button)) ? true : false;
}
};
//! Any kind of log event.
struct SLogEvent
{
//! Pointer to text which has been logged
const c8* Text;
//! Log level in which the text has been logged
ELOG_LEVEL Level;
};
//! Any kind of user event.
struct SUserEvent
{
//! Some user specified data as int
s32 UserData1;
//! Another user specified data as int
s32 UserData2;
};
// Raw events from the OS
struct SSystemEvent
{
//! Android command handler native activity messages.
struct SAndroidCmd
{
//! APP_CMD_ enums defined in android_native_app_glue.h from the Android NDK
s32 Cmd;
};
// TOOD: more structs for iphone, Windows, X11, etc.
ESYSTEM_EVENT_TYPE EventType;
union
{
struct SAndroidCmd AndroidCmd;
};
};
// Application state event
struct SApplicationEvent
{
EAPPLICATION_EVENT_TYPE EventType;
};
// Application state event
struct SSDLTextEvent
{
u32 Type; // SDL_TEXTEDITING or SDL_TEXTINPUT
c8 Text[32];
s32 Start; // SDL_TEXTEDITING usage
s32 Length; // SDL_TEXTEDITING usage
};
EEVENT_TYPE EventType;
union
{
struct SGUIEvent GUIEvent;
struct SMouseInput MouseInput;
struct SKeyInput KeyInput;
struct STouchInput TouchInput;
struct SAccelerometerEvent AccelerometerEvent;
struct SGyroscopeEvent GyroscopeEvent;
struct SDeviceMotionEvent DeviceMotionEvent;
struct SJoystickEvent JoystickEvent;
struct SLogEvent LogEvent;
struct SUserEvent UserEvent;
struct SSystemEvent SystemEvent;
struct SApplicationEvent ApplicationEvent;
struct SSDLTextEvent SDLTextEvent;
};
};
//! Interface of an object which can receive events.
/** Many of the engine's classes inherit IEventReceiver so they are able to
process events. Events usually start at a postEventFromUser function and are
passed down through a chain of event receivers until OnEvent returns true. See
irr::EEVENT_TYPE for a description of where each type of event starts, and the
path it takes through the system. */
class IEventReceiver
{
public:
//! Destructor
virtual ~IEventReceiver() {}
//! Called if an event happened.
/** Please take care that you should only return 'true' when you want to _prevent_ Irrlicht
* from processing the event any further. So 'true' does mean that an event is completely done.
* Therefore your return value for all unprocessed events should be 'false'.
\return True if the event was processed.
*/
virtual bool OnEvent(const SEvent& event) = 0;
};
//! Information on a joystick, returned from @ref irr::IrrlichtDevice::activateJoysticks()
struct SJoystickInfo
{
//! The ID of the joystick
/** This is an internal Irrlicht index; it does not map directly
* to any particular hardware joystick. It corresponds to the
* irr::SJoystickEvent Joystick ID. */
u8 Joystick;
//! The name that the joystick uses to identify itself.
core::stringc Name;
//! The number of buttons that the joystick has.
u32 Buttons;
//! The number of axes that the joystick has, i.e. X, Y, Z, R, U, V.
/** Note: with a Linux device, the POV hat (if any) will use two axes. These
* will be included in this count. */
u32 Axes;
//! An indication of whether the joystick has a POV hat.
/** A Windows device will identify the presence or absence or the POV hat. A
* Linux device cannot, and will always return POV_HAT_UNKNOWN. */
enum
{
//! A hat is definitely present.
POV_HAT_PRESENT,
//! A hat is definitely not present.
POV_HAT_ABSENT,
//! The presence or absence of a hat cannot be determined.
POV_HAT_UNKNOWN
} PovHat;
//! Set if the name of the joystick is useful:
/** On windows the generic name is useless, since it's always the same
* indepentent of what joystick is connected ("Microsoft PC-joystick driver").
* We will try to get a better name from the registry, but if this should
* fail this flag is set and used by STK. */
bool HasGenericName;
}; // struct SJoystickInfo
} // end namespace irr
#endif
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