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// Basemenu.hh for Fluxbox Window manager
// Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Basemenu.hh for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// $Id: Basemenu.hh,v 1.20 2002/12/01 13:41:54 rathnor Exp $

#ifndef	 BASEMENU_HH
#define	 BASEMENU_HH

#include <X11/Xlib.h>
#include <vector>
#include <string>

class Basemenu;
class BasemenuItem;
class Fluxbox;
class BImageControl;
class BScreen;
/**
   Base class for menus
*/
class Basemenu {
public:
    enum Alignment{ ALIGNDONTCARE = 1, ALIGNTOP, ALIGNBOTTOM };
    enum { RIGHT = 1, LEFT };
	
    /**
       Bullet type
    */
    enum { EMPTY = 0, SQUARE, TRIANGLE, DIAMOND };
	
    explicit Basemenu(BScreen *screen);
    virtual ~Basemenu();

    /**
       @name manipulators
    */
    //@{
    int insert(const char *label, int function= 0, const char *exec = 0, int pos = -1);
    int insert(const char *label, Basemenu *submenu, int pos= -1);
    int remove(unsigned int item);
    inline void setInternalMenu() { internal_menu = true; }
    inline void setAlignment(Alignment a) { m_alignment = a; }
    inline void setTorn() { torn = true; }
    inline void removeParent() { if (internal_menu) m_parent = 0; }
    void raise();
    void lower();
    /**
       @name event handlers
    */
    //@{
    void buttonPressEvent(XButtonEvent *bp);
    void buttonReleaseEvent(XButtonEvent *br);
    void motionNotifyEvent(XMotionEvent *mn);
    void enterNotifyEvent(XCrossingEvent *en);
    void leaveNotifyEvent(XCrossingEvent *ce);
    void exposeEvent(XExposeEvent *ee);
    //@}

    void reconfigure();
    /// set label string
    void setLabel(const char *labelstr);
    /// move menu to x,y
    void move(int x, int y);
    void update();
    void setItemSelected(unsigned int index, bool val);
    void setItemEnabled(unsigned int index, bool val);
    virtual void drawSubmenu(unsigned int index);
    virtual void show();
    virtual void hide();
    /*@}*/
	
    /**
       @name accessors
    */
    //@{
    bool isTorn() const { return torn; }
    bool isVisible() const { return visible; }
    const BScreen *screen() const { return m_screen; }
    BScreen *screen() { return m_screen; }
    Window windowID() const { return menu.window; }
    const std::string &label() const { return menu.label; }  
    int x() const { return menu.x; }
    int y() const { return menu.y; }
    unsigned int width() const { return menu.width; }
    unsigned int height() const { return menu.height; }
    unsigned int numberOfItems() const { return menuitems.size(); }
    int currentSubmenu() const { return which_sub; } 
    unsigned int titleHeight() const { return menu.title_h; }
    bool hasSubmenu(unsigned int index) const;
    bool isItemSelected(unsigned int index) const;
    bool isItemEnabled(unsigned int index) const;
    //@}

protected:

    inline BasemenuItem *find(unsigned int index) const { return menuitems[index]; }
    inline void setTitleVisibility(bool b) { title_vis = b; }
    inline void setMovable(bool b) { movable = b; }
    inline void setHideTree(bool h) { hide_tree = h; }
    inline void setMinimumSublevels(int m) { menu.minsub = m; }

    virtual void itemSelected(int button, unsigned int index) = 0;
    virtual void drawItem(unsigned int index, bool highlight= false, bool clear= false,
                          int x= -1, int y= -1, unsigned int width= 0, unsigned int height= 0);
    virtual void redrawTitle();
    virtual void internal_hide();
    inline Basemenu *parent() { return m_parent; }
    inline const Basemenu *parent() const { return m_parent; }

private:

    typedef std::vector<BasemenuItem *> Menuitems;
    BScreen *m_screen;
    Display *m_display;
    Basemenu *m_parent;
    BImageControl *m_image_ctrl;
    Menuitems menuitems;
	
    bool moving, visible, movable, torn, internal_menu, title_vis, shifted,
        hide_tree;
	
    int which_sub, which_press, which_sbl;
    Alignment m_alignment;

    struct _menu {
        Pixmap frame_pixmap, title_pixmap, hilite_pixmap, sel_pixmap;
        Window window, frame, title;

        std::string label;
        int x, y, x_move, y_move, x_shift, y_shift, sublevels, persub, minsub,
            grab_x, grab_y;
        unsigned int width, height, title_h, frame_h, item_w, item_h, bevel_w,
            bevel_h;
    } menu;

};

/**
	A menu item in Basemenu
*/
class BasemenuItem {
public:
    BasemenuItem(
        const char *label,
        int function,
        const char *exec = (const char *) 0)
        : m_label(label ? label : "")
        , m_exec(exec ? exec : "")
        , m_submenu(0)
        , m_function(function)
        , m_enabled(true)
        , m_selected(false)
	{ }

    BasemenuItem(const char *label, Basemenu *submenu)
        : m_label(label ? label : "")
        , m_exec("")
        , m_submenu(submenu)
        , m_function(0)
        , m_enabled(true)
        , m_selected(false)
	{ }

    void setSelected(bool selected) { m_selected = selected; }
    void setEnabled(bool enabled) { m_enabled = enabled; }
    Basemenu *submenu() { return m_submenu; }
    /** 
        @name accessors
    */
    //@{
    const std::string &exec() const { return m_exec; }
    const std::string &label() const { return m_label; }
    int function() const { return m_function; }
    const Basemenu *submenu() const { return m_submenu; } 
    bool isEnabled() const { return m_enabled; }
    bool isSelected() const { return m_selected; }
    //@}
	
private:
    std::string m_label; ///< label of this item
    std::string m_exec;  ///< command string to execute
    Basemenu *m_submenu; ///< a submenu, 0 if we don't have one
    int m_function;
    bool m_enabled, m_selected;

    friend class Basemenu;
};


#endif // BASEMENU_HH