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#ifndef IDLIST_H
#define IDLIST_H
struct GUIState;
#include "Runtime/Math/Rect.h"
#include "Runtime/Utilities/dynamic_array.h"
/// Used by GUIUtility.GetcontrolID to inform the UnityGUI system if a given control can get keyboard focus.
/// MUST MATCH FocusType in GUIUtility.txt
enum FocusType {
/// This control can get keyboard focus on Windows, but not on Mac. Used for buttons, checkboxes and other "pressable" things.
kNative = 0,
/// This is a proper keyboard control. It can have input focus on all platforms. Used for TextField and TextArea controls
kKeyboard = 1,
/// This control can never recieve keyboard focus.
kPassive = 2,
};
/// Manages the list of IDs that are returned from GUIUtility.GetControlID ();
class IDList
{
public:
IDList ();
int GetNext (GUIState &state, int hint, FocusType focusType);
int GetNext (GUIState &state, int hint, FocusType focusType, const Rectf &rect);
void BeginOnGUI ();
bool HasKeyboardControl () { return m_HasKeyboardControl; }
// Get the ID of the keyboard control BEFORE the one that has keyboard focus (used to implement shift-tab) -1 if not found
int GetPreviousKeyboardControlID () { return m_PreviousKeyControl; }
// Get the ID of the keyboard control AFTER the one that has keyboard focus (used to implement tab) -1 if not found
int GetNextKeyboardControlID () { return m_NextKeyControl; }
// Get the ID of the first keyboard control - used when tabbing into this script -1 if not found
int GetFirstKeyboardControlID () { return m_FirstKeyControl; }
// Get the ID of the last keyboard control - used when tabbing out of this script -1 if not found
int GetLastKeyboardControlID () { return m_LastKeyControl; }
bool GetRectOfControl (int id, Rectf &out) const;
bool CanHaveKeyboardFocus (int id) const;
void SetSearchIndex (int index);
int GetSearchIndex () const;
private:
// Enum and vars for handling searching for next and previous fields when tabbing through controls.
enum TabControlSearchStatus
{
kNotActive = 0, kLookingForPrevious = 1, kLookingForNext = 2, kFound = 3
};
TabControlSearchStatus m_TabControlSearchStatus;
int m_FirstKeyControl, m_LastKeyControl, m_PreviousKeyControl, m_NextKeyControl;
bool m_HasKeyboardControl;
/// Determine if a given focusType should result in keyboard control
static bool ShouldBeKeyboardControl (FocusType focus);
int CalculateNextFromHintList (GUIState &state, int hint, bool isKeyboard);
struct ID
{
int hint, value;
bool isKeyboard;
Rectf rect;
ID (int _hint, int _value, bool _isKeyboard) : hint (_hint), value (_value), isKeyboard (_isKeyboard), rect (-1.0f, -1.0f, -1.0f, -1.0f) {}
ID (int _hint, int _value, bool _isKeyboard, Rectf _rect) : hint (_hint), value (_value), isKeyboard (_isKeyboard), rect (_rect) {}
};
dynamic_array<ID> m_IDs;
int m_Idx;
};
#endif
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