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// Menu.hh for FbTk - Fluxbox Toolkit
// Copyright (c) 2001 - 2004 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// 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.
#ifndef FBTK_MENU_HH
#define FBTK_MENU_HH
#include <vector>
#include <memory>
#include "FbString.hh"
#include "FbWindow.hh"
#include "EventHandler.hh"
#include "Observer.hh"
#include "MenuTheme.hh"
#include "Timer.hh"
#include "TypeAhead.hh"
namespace FbTk {
class Command<class T>;
class MenuItem;
class ImageControl;
class RefCount<class T>;
/// Base class for menus
class Menu: public FbTk::EventHandler, FbTk::FbWindowRenderer,
public FbTk::Observer {
public:
enum Alignment{ ALIGNDONTCARE = 1, ALIGNTOP, ALIGNBOTTOM };
enum { RIGHT = 1, LEFT };
/**
Bullet type
*/
enum { EMPTY = 0, SQUARE, TRIANGLE, DIAMOND };
Menu(FbTk::ThemeProxy<MenuTheme> &tm, ImageControl &imgctrl);
virtual ~Menu();
/**
@name manipulators
*/
//@{
/// add a menu item with a label and a command
int insert(const FbString &label, RefCount<Command<void> > &cmd, int pos=-1);
/// add empty menu item
int insert(const FbString &label, int pos=-1);
/// add submenu
int insert(const FbString &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();
void setInternalMenu(bool val = true) { m_internal_menu = val; }
void setAlignment(Alignment a) { m_alignment = a; }
/// raise this window
virtual void raise();
/// lower this window
virtual void lower();
/// cycle through menuitems
void cycleItems(bool reverse);
void enterSubmenu();
void disableTitle();
void enableTitle();
void setScreen(int x, int y, int w, int h);
/**
@name event handlers
*/
//@{
void handleEvent(XEvent &event);
void buttonPressEvent(XButtonEvent &bp);
virtual void buttonReleaseEvent(XButtonEvent &br);
void motionNotifyEvent(XMotionEvent &mn);
void exposeEvent(XExposeEvent &ee);
void keyPressEvent(XKeyEvent &ke);
void leaveNotifyEvent(XCrossingEvent &ce);
//@}
/// get input focus
void grabInputFocus();
virtual void reconfigure();
/// set label string
void setLabel(const FbString &labelstr);
/// move menu to x,y
virtual void move(int x, int y);
virtual void updateMenu(int active_index = -1);
void setItemSelected(unsigned int index, bool val);
void setItemEnabled(unsigned int index, bool val);
void setMinimumSublevels(int m) { menu.minsub = m; }
virtual void drawSubmenu(unsigned int index);
/// show menu
virtual void show();
/// hide menu
virtual void hide(bool force = false);
virtual void clearWindow();
/*@}*/
/**
@name accessors
*/
//@{
bool isTorn() const { return m_torn; }
bool isVisible() const { return m_visible; }
bool isMoving() const { return m_moving; }
int screenNumber() const { return menu.window.screenNumber(); }
Window window() const { return menu.window.window(); }
FbWindow &fbwindow() { return menu.window; }
const FbWindow &fbwindow() const { return menu.window; }
FbWindow &titleWindow() { return menu.title; }
FbWindow &frameWindow() { return menu.frame; }
const std::string &label() const { return menu.label; }
int x() const { return menu.window.x(); }
int y() const { return menu.window.y(); }
unsigned int width() const { return menu.window.width(); }
unsigned int height() const { return menu.window.height(); }
size_t numberOfItems() const { return menuitems.size(); }
int currentSubmenu() const { return m_which_sub; }
bool isItemSelected(unsigned int index) const;
bool isItemEnabled(unsigned int index) const;
bool isItemSelectable(unsigned int index) const;
FbTk::ThemeProxy<MenuTheme> &theme() { return m_theme; }
const FbTk::ThemeProxy<MenuTheme> &theme() const { return m_theme; }
unsigned char alpha() const { return theme()->alpha(); }
static Menu *shownMenu() { return shown; }
static Menu *focused() { return s_focused; }
static void hideShownMenu();
/// @return menuitem at index
const MenuItem *find(unsigned int index) const { return menuitems[index]; }
MenuItem *find(unsigned int index) { return menuitems[index]; }
//@}
/// @return true if index is valid
bool validIndex(int index) const { return (index < static_cast<int>(numberOfItems()) && index >= 0); }
Menu *parent() { return m_parent; }
const Menu *parent() const { return m_parent; }
void renderForeground(FbWindow &win, FbDrawable &drawable);
protected:
void setTitleVisibility(bool b) {
m_title_vis = b; m_need_update = true;
if (!b)
titleWindow().lower();
else
titleWindow().raise();
}
// renders item onto pm
int drawItem(FbDrawable &pm, unsigned int index,
bool highlight = false,
bool exclusive_drawable = false);
void clearItem(int index, bool clear = true, int search_index = -1);
void highlightItem(int index);
virtual void redrawTitle(FbDrawable &pm);
virtual void redrawFrame(FbDrawable &pm);
virtual void internal_hide(bool first = true);
virtual void update(FbTk::Subject *);
private:
void openSubmenu();
void closeMenu();
void startHide();
void stopHide();
FbTk::ThemeProxy<MenuTheme> &m_theme;
Menu *m_parent;
ImageControl &m_image_ctrl;
typedef std::vector<MenuItem *> Menuitems;
Menuitems menuitems;
TypeAhead<Menuitems, MenuItem *> m_type_ahead;
Menuitems m_matches;
void resetTypeAhead();
void drawTypeAheadItems();
void drawLine(int index, int size);
void fixMenuItemIndices();
int m_screen_x, m_screen_y;
unsigned int m_screen_width, m_screen_height;
bool m_moving; ///< if we're moving/draging or not
bool m_closing; ///< if we're right clicking on the menu title
bool m_visible; ///< menu visibility
bool m_torn; ///< torn from parent
bool m_internal_menu; ///< whether we should destroy this menu or if it's managed somewhere else
bool m_title_vis; ///< title visibility
int m_which_sub;
Alignment m_alignment;
struct _menu {
Pixmap frame_pixmap, title_pixmap, hilite_pixmap;
FbTk::FbWindow window, frame, title;
std::string label;
int x_move, y_move, sublevels, persub, minsub, grab_x, grab_y;
unsigned int frame_h, item_w;
} menu;
int m_active_index; ///< current highlighted index
std::auto_ptr<FbTk::Shape> m_shape;
Drawable m_root_pm;
static Menu *shown; ///< used for determining if there's a menu open at all
static Menu *s_focused; ///< holds current input focused menu, so one can determine if a menu is focused
bool m_need_update;
Timer m_submenu_timer;
Timer m_hide_timer;
};
} // end namespace FbTk
#endif // FBTK_MENU_HH
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