UI_DeviceEvent.h

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#ifndef __UI_DeviceEvent__
#define __UI_DeviceEvent__

#include "UI_API.h"

#include <RE/RE_IDType.h>
#include <SYS/SYS_Types.h>
#include <UT/UT_Array.h>
#include <UT/UT_StringHolder.h>

#include "UI_EventType.h"

/*
 *      The UI_DeviceEvent is a generic event structure which
 *      various input device drivers will generate as sub-classes
 *      of UI_EventGenerator.
 */

/*
 *  Note: these are flag bits since more than one button can be down:
 */
#define UI_NO_BUTTON            0x0
#define UI_LEFT_BUTTON          0x01
#define UI_MIDDLE_BUTTON        0x02
#define UI_RIGHT_BUTTON         0x04

#define UI_ALT_KEY              0x001   //
#define UI_SHIFT_KEY            0x002   //
#define UI_CTRL_KEY             0x004   //
#define UI_COMMAND_KEY          0x008   // Windows key on Win/Linux
#define UI_META_KEYS            (UI_ALT_KEY| \
                                 UI_SHIFT_KEY| \
                                 UI_CTRL_KEY| \
                                 UI_COMMAND_KEY)
#define UI_ALPHASHIFT_KEY       0x010   // Caps-lock
#define UI_AUTOREPEAT           0x020   // Auto-repeat is on for the key
#define UI_IME_PREEDIT          0x040   // Key is IME pre-edit string
#define UI_IME_COMMIT           0x080   // Key is IME commit string
#define UI_KEYPAD_KEY           0x100   // The key came from the keypad
#define UI_TABLET_MOTION        0x200   // Motion event triggered from tablet.
#define UI_KEYSTATE_CHANGE      0x400   // Key state was changed by this event
#define UI_KEYSEQ_TRIGGER       0x800   // Key is key sequence hotkey trigger

#if defined(MBSD)
    #define UI_TOGGLE_SEL_MODIFIER  UI_COMMAND_KEY
#else
    #define UI_TOGGLE_SEL_MODIFIER  UI_CTRL_KEY
#endif

static inline bool
UIhasToggleSelModifier(short alt_flags)
{
    return (alt_flags & UI_TOGGLE_SEL_MODIFIER);
}

// Conversion from our Z value to 0..1
#define UI_PRESSURE_SCALE       16384.0F
// Conversion of T/U/V values to degrees.
#define UI_ANGLE_SCALE          100.0F

enum UI_Dimension
{
    DEVICE_DIM_T    = 0,
    DEVICE_DIM_U    = 1,
    DEVICE_DIM_V    = 2,
    W               = 3,
    X               = 4,
    Y               = 5,
    Z               = 6
};
#define UI_DEVICE_DIMENSIONS    7


class UI_API UI_DeviceEvent 
{
public:
    UI_DeviceEvent(int event_id = 0);

    /// Returns an array of Unicode code points corresponding to typed in
    /// characters from a keyboard event.
    bool getTypedCharacters(UT_Array<utf32> &cps) const;
    
    UI_EventType type;
    // NB: 4 bytes of alignment padding here
    RE_IDType    context;               // Device specific context
    double       time;                  // Time in seconds.
    int64        serialId;              // Event specific serialization id
    
    exint        data;                  // Event data (at least pointer sized)
    int          values[UI_DEVICE_DIMENSIONS];  // Usually valuator values
    short        altFlags;              // Event flags
    // NB: 2 bytes of alignment padding here
    int          id;                    // Event identifier
    
    int          qt_key;
    UT_StringHolder key;                // Key input for UI_EVENT_KEYBOARD
};

inline
UI_DeviceEvent::UI_DeviceEvent(int event_id)
{
    id  = event_id;

    type = UI_EVENT_NO_EVENT;

    context   = 0;
    data      = 0;
    altFlags  = 0;
    values[DEVICE_DIM_T] = 0;
    values[DEVICE_DIM_U] = 0;
    values[DEVICE_DIM_V] = 0;
    values[W] = 0;
    values[X] = 0;
    values[Y] = 0;
    values[Z] = 0;
    
    time = -1.0;
    serialId = 0;
    qt_key = 0;
}

#endif