modules/gui/skins2/src/generic_window.hpp

   1 /*****************************************************************************
   2  * generic_window.hpp
   3  *****************************************************************************
   4  * Copyright (C) 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Cyril Deguet     <asmax@via.ecp.fr>
   8  *          Olivier Teulière <ipkiss@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef GENERIC_WINDOW_HPP
  26 #define GENERIC_WINDOW_HPP
  27
  28 #include "skin_common.hpp"
  29 #include "../utils/var_bool.hpp"
  30
  31 class OSWindow;
  32 class EvtGeneric;
  33 class EvtFocus;
  34 class EvtLeave;
  35 class EvtMenu;
  36 class EvtMotion;
  37 class EvtMouse;
  38 class EvtKey;
  39 class EvtRefresh;
  40 class EvtScroll;
  41 class WindowManager;
  42
  43
  44 /// Generic window class
  45 class GenericWindow: public SkinObject, public Observer<VarBool>
  46 {
  47 private:
  48     friend class WindowManager;
  49     friend class VoutManager;
  50     friend class CtrlVideo;
  51 public:
  52
  53     enum WindowType_t
  54     {
  55         TopWindow,
  56         VoutWindow,
  57         FullscreenWindow,
  58     };
  59
  60     GenericWindow( intf_thread_t *pIntf, int xPos, int yPos,
  61                    bool dragDrop, bool playOnDrop,
  62                    GenericWindow *pParent = NULL,
  63                    WindowType_t type = TopWindow );
  64     virtual ~GenericWindow();
  65
  66     /// Methods to process OS events.
  67     virtual void processEvent( EvtFocus &rEvtFocus ) { }
  68     virtual void processEvent( EvtMenu &rEvtMenu ) { }
  69     virtual void processEvent( EvtMotion &rEvtMotion ) { }
  70     virtual void processEvent( EvtMouse &rEvtMouse ) { }
  71     virtual void processEvent( EvtLeave &rEvtLeave ) { }
  72     virtual void processEvent( EvtKey &rEvtKey ) { }
  73     virtual void processEvent( EvtScroll &rEvtScroll ) { }
  74
  75     virtual void processEvent( EvtRefresh &rEvtRefresh );
  76
  77     /// Resize the window
  78     virtual void resize( int width, int height );
  79
  80     /// Refresh an area of the window
  81     virtual void refresh( int left, int top, int width, int height ) { }
  82
  83     /// Get the coordinates of the window
  84     int getLeft() const { return m_left; }
  85     int getTop() const { return m_top; }
  86     int getWidth() const { return m_width; }
  87     int getHeight() const { return m_height; }
  88
  89     /// Give access to the visibility variable
  90     VarBool &getVisibleVar() { return *m_pVarVisible; }
  91
  92     /// Window type, mainly useful when overloaded (for VoutWindow)
  93     virtual string getType() const { return "Generic"; }
  94
  95     /// windows handle
  96     void* getOSHandle() const;
  97
  98     /// reparent
  99     void setParent( GenericWindow* pParent,
 100                     int x = 0, int y = 0, int w = -1, int h = -1 );
 101
 102 protected:
 103     /// Get the OS window
 104     OSWindow *getOSWindow() const { return m_pOsWindow; }
 105
 106     /// These methods do not need to be public since they are accessed
 107     /// only by the window manager or by inheritant classes.
 108     //@{
 109     /// Show the window
 110     virtual void show() const;
 111
 112     /// Hide the window
 113     virtual void hide() const;
 114
 115     /// Move the window
 116     virtual void move( int left, int top );
 117
 118     /// Bring the window on top
 119     virtual void raise() const;
 120
 121     /// Set the opacity of the window (0 = transparent, 255 = opaque)
 122     virtual void setOpacity( uint8_t value );
 123
 124     /// Toggle the window on top
 125     virtual void toggleOnTop( bool onTop ) const;
 126     //@}
 127
 128     /// Actually show the window
 129     virtual void innerShow();
 130
 131     /// Actually hide the window
 132     virtual void innerHide();
 133
 134 private:
 135     /// Window position and size
 136     int m_left, m_top, m_width, m_height;
 137     /// OS specific implementation
 138     OSWindow *m_pOsWindow;
 139     /// Variable for the visibility of the window
 140     mutable VarBoolImpl *m_pVarVisible;
 141
 142     /// Method called when the observed variable is modified
 143     virtual void onUpdate( Subject<VarBool> &rVariable , void*);
 144 };
 145
 146
 147 #endif