89 lines
1.8 KiB
C++
89 lines
1.8 KiB
C++
/*
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* Copyright 2006-2011, Haiku, Inc.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Stefano Ceccherini (stefano.ceccherini@gmail.com)
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*/
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#ifndef __MENU_PRIVATE_H
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#define __MENU_PRIVATE_H
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#include <Menu.h>
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enum menu_states {
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MENU_STATE_TRACKING = 0,
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MENU_STATE_TRACKING_SUBMENU = 1,
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MENU_STATE_KEY_TO_SUBMENU = 2,
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MENU_STATE_KEY_LEAVE_SUBMENU = 3,
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MENU_STATE_CLOSED = 5
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};
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class BBitmap;
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class BMenu;
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class BWindow;
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namespace BPrivate {
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extern const char *kEmptyMenuLabel;
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class MenuPrivate {
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public:
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MenuPrivate(BMenu *menu);
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menu_layout Layout() const;
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void ItemMarked(BMenuItem *item);
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void CacheFontInfo();
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float FontHeight() const;
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float Ascent() const;
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BRect Padding() const;
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void GetItemMargins(float *, float *, float *, float *) const;
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int State(BMenuItem **item = NULL) const;
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void Install(BWindow *window);
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void Uninstall();
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void SetSuper(BMenu *menu);
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void SetSuperItem(BMenuItem *item);
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void InvokeItem(BMenuItem *item, bool now = false);
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void QuitTracking(bool thisMenuOnly = true);
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static status_t CreateBitmaps();
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static void DeleteBitmaps();
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static const BBitmap *MenuItemShift();
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static const BBitmap *MenuItemControl();
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static const BBitmap *MenuItemOption();
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static const BBitmap *MenuItemCommand();
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static const BBitmap *MenuItemMenu();
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private:
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BMenu *fMenu;
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static BBitmap *sMenuItemShift;
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static BBitmap *sMenuItemControl;
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static BBitmap *sMenuItemOption;
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static BBitmap *sMenuItemAlt;
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static BBitmap *sMenuItemMenu;
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};
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};
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// Note: since sqrt is slow, we don't use it and return the square of the distance
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#define square(x) ((x) * (x))
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static inline float
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point_distance(const BPoint &pointA, const BPoint &pointB)
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{
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return square(pointA.x - pointB.x) + square(pointA.y - pointB.y);
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}
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#undef square
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#endif // __MENU_PRIVATE_H
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