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// Menu.hh for FbTk - Fluxbox Toolkit
// Copyright (c) 2001 - 2004 Henrik Kinnunen (fluxgen at users.sourceforge.net)
//
// Basemenu.hh for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes at 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: Menu.hh,v 1.37 2004/06/27 13:51:24 fluxgen Exp $
#ifndef FBTK_MENU_HH
#define FBTK_MENU_HH
#include <X11/Xlib.h>
#include <vector>
#include <string>
#include <memory>
#include "FbWindow.hh"
#include "EventHandler.hh"
#include "RefCount.hh"
#include "Command.hh"
#include "Observer.hh"
#include "FbPixmap.hh"
#include "MenuTheme.hh"
#include "Timer.hh"
namespace FbTk {
class MenuItem;
class ImageControl;
class Transparent;
/// Base class for menus
class Menu: public FbTk::EventHandler, protected FbTk::Observer {
public:
enum Alignment{ ALIGNDONTCARE = 1, ALIGNTOP, ALIGNBOTTOM };
enum { RIGHT = 1, LEFT };
/**
Bullet type
*/
enum { EMPTY = 0, SQUARE, TRIANGLE, DIAMOND };
Menu(MenuTheme &tm, ImageControl &imgctrl);
virtual ~Menu();
/**
@name manipulators
*/
//@{
/// add a menu item with a label and a command
int insert(const char *label, RefCount<Command> &cmd, int pos=-1);
/// add empty menu item
int insert(const char *label, int pos=-1);
/// add submenu
int insert(const char *label, Menu *submenu, int pos= -1);
/// add menu item
int insert(MenuItem *item, int pos=-1);
/// remove an item
int remove(unsigned int item);
/// remove all items
void removeAll();
inline void setInternalMenu(bool val = true) { internal_menu = val; }
inline void setAlignment(Alignment a) { m_alignment = a; }
inline void setTorn() { torn = true; }
inline void removeParent() { if (internal_menu) m_parent = 0; }
/// raise this window
virtual void raise();
/// lower this window
virtual void lower();
/// select next item
void nextItem();
/// select previous item
void prevItem();
void enterSubmenu();
void enterParent();
void disableTitle();
void enableTitle();
/**
@name event handlers
*/
//@{
void handleEvent(XEvent &event);
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 keyPressEvent(XKeyEvent &ke);
//@}
/// get input focus
void grabInputFocus();
virtual void reconfigure();
/// set label string
void setLabel(const char *labelstr);
/// move menu to x,y
void move(int x, int y);
virtual void update(int active_index = -1);
void setItemSelected(unsigned int index, bool val);
void setItemEnabled(unsigned int index, bool val);
inline void setMinimumSublevels(int m) { menu.minsub = m; }
virtual void drawSubmenu(unsigned int index);
/// show menu
virtual void show();
/// hide menu
virtual void hide();
virtual void clearWindow();
void setActiveIndex(int index) { m_active_index = index; }
/*@}*/
/**
@name accessors
*/
//@{
inline int activeIndex() const { return m_active_index; }
inline bool isTorn() const { return torn; }
inline bool isVisible() const { return visible; }
inline int screenNumber() const { return menu.window.screenNumber(); }
inline Window window() const { return menu.window.window(); }
inline FbWindow &fbwindow() { return menu.window; }
inline const FbWindow &fbwindow() const { return menu.window; }
inline FbWindow &titleWindow() { return menu.title; }
inline FbWindow &frameWindow() { return menu.frame; }
inline const std::string &label() const { return menu.label; }
inline int x() const { return menu.window.x(); }
inline int y() const { return menu.window.y(); }
inline unsigned int width() const { return menu.window.width(); }
inline unsigned int height() const { return menu.window.height(); }
inline unsigned int numberOfItems() const { return menuitems.size(); }
inline int currentSubmenu() const { return which_sub; }
bool hasSubmenu(unsigned int index) const;
bool isItemSelected(unsigned int index) const;
bool isItemEnabled(unsigned int index) const;
inline const MenuTheme &theme() const { return m_theme; }
inline unsigned char alpha() const { return theme().alpha(); }
inline static Menu *focused() { return s_focused; }
/// @return menuitem at index
inline const MenuItem *find(unsigned int index) const { return menuitems[index]; }
inline MenuItem *find(unsigned int index) { return menuitems[index]; }
//@}
/// @return true if index is valid
inline bool validIndex(int index) const { return (index < static_cast<int>(numberOfItems()) && index >= 0); }
protected:
inline void setTitleVisibility(bool b) {
title_vis = b; m_need_update = true;
if (!b)
titleWindow().lower();
else
titleWindow().raise();
}
virtual void itemSelected(int button, unsigned int index) { }
virtual int drawItem(unsigned int index,
bool clear = false, bool render_trans = true,
int x= -1, int y= -1,
unsigned int width= 0, unsigned int height= 0);
virtual void redrawTitle();
virtual void internal_hide();
inline Menu *parent() { return m_parent; }
inline const Menu *parent() const { return m_parent; }
void update(FbTk::Subject *);
void renderTransp(int x, int y,
unsigned int width, unsigned int height);
private:
void openSubmenu();
void closeMenu();
void startHide();
void stopHide();
typedef std::vector<MenuItem *> Menuitems;
const MenuTheme &m_theme;
Menu *m_parent;
ImageControl &m_image_ctrl;
Menuitems menuitems;
const unsigned int m_screen_width, m_screen_height;
bool moving; ///< if we're moving/draging or not
bool visible; ///< menu visibility
bool torn; ///< torn from parent
bool internal_menu; ///< whether we should destroy this menu or if it's managed somewhere else
bool title_vis; ///< title visibility
bool shifted; ///< if the menu is shifted to the other side of the parent
int which_sub, which_press, which_sbl;
Alignment m_alignment;
struct _menu {
Pixmap frame_pixmap, title_pixmap, hilite_pixmap, sel_pixmap;
FbTk::FbWindow window, frame, title;
std::string label;
int x_move, y_move, x_shift, y_shift, sublevels, persub, minsub,
grab_x, grab_y;
unsigned int frame_h, item_w;
} menu;
int m_active_index; ///< current highlighted index
Drawable m_root_pm;
static Menu *s_focused; ///< holds current input focused menu, so one can determine if a menu is focused
FbPixmap m_frame_pm, ///< buffer pixmap
m_real_frame_pm; ///< buffer pixmap (this one is shown to the user)
FbPixmap m_title_pm, ///< buffer pixmap to avoid flicker
m_real_title_pm; ///< buffer pixmap (this one is shown to the user)
std::auto_ptr<Transparent> m_transp;
bool m_need_update;
Timer m_submenu_timer;
Timer m_hide_timer;
};
} // end namespace FbTk
#endif // FBTK_MENU_HH
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