Dogcows Code - chaz/openbox/blob - src/frame.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __frame_hh
   3 #define   __frame_hh
   4
   5 /*! @file frame.hh
   6 */
   7
   8 extern "C" {
   9 #include <X11/Xlib.h>
  10 }
  11
  12 #include "python.hh"
  13 #include "otk/strut.hh"
  14 #include "otk/rect.hh"
  15 #include "otk/renderstyle.hh"
  16 #include "otk/ustring.hh"
  17 #include "otk/surface.hh"
  18 #include "otk/eventhandler.hh"
  19
  20 #include <string>
  21
  22 namespace ob {
  23
  24 class Client;
  25
  26 //! Varius geometry settings in the frame decorations
  27 struct FrameGeometry {
  28   unsigned int width; // title and handle
  29   unsigned int font_height;
  30   unsigned int title_height() { return font_height + bevel*2; }
  31   unsigned int label_width;
  32   unsigned int label_height() { return font_height; }
  33   unsigned int handle_height; // static, from the style
  34   int handle_y;
  35   unsigned int button_size;   // static, from the style
  36   unsigned  grip_width() { return button_size * 2; }
  37   unsigned  bevel;         // static, from the style
  38   unsigned  bwidth;  // frame elements' border width
  39   unsigned  cbwidth; // client border width
  40 };
  41
  42 //! Holds and decorates a frame around an Client (client window)
  43 /*!
  44   The frame is responsible for calling XSelectInput on the client window's new
  45   parent with the SubstructureRedirectMask so that structure events for the
  46   client are sent to the window manager.
  47 */
  48 class Frame : public otk::StyleNotify, public otk::EventHandler {
  49 public:
  50
  51   //! The event mask to grab on frame windows
  52   static const long event_mask = EnterWindowMask | LeaveWindowMask;
  53
  54 private:
  55   Client *_client;
  56
  57   //! The size of the frame on each side of the client window
  58   otk::Strut _size;
  59
  60   //! The size of the frame on each side of the client window inside the border
  61   otk::Strut _innersize;
  62
  63   //! The position and size of the entire frame (including borders)
  64   otk::Rect _area;
  65
  66   bool _visible;
  67
  68   // decoration windows
  69   Window  _frame;   // sits under everything
  70   Window  _plate;   // sits entirely under the client window
  71   Window  _title;   // the titlebar
  72   Window  _label;   // the section of the titlebar which shows the window name
  73   Window  _handle;  // bottom bar
  74   Window  _lgrip;   // lefthand resize grab on the handle
  75   Window  _rgrip;   // righthand resize grab on the handle
  76   Window *_buttons; // all of the titlebar buttons
  77   unsigned int  _numbuttons; // number of buttons, size of _buttons array
  78   unsigned int *_titleorder; // order of the buttons and the label (always
  79                              // holds '_numbuttons + 1' elements (for the
  80                              // label, which is coded as '-1')
  81
  82   // surfaces for each
  83   otk::Surface  *_frame_sur;
  84   otk::Surface  *_title_sur;
  85   otk::Surface  *_label_sur;
  86   otk::Surface  *_handle_sur;
  87   otk::Surface  *_grip_sur;
  88   otk::Surface **_buttons_sur;
  89
  90   FrameGeometry geom;
  91
  92   void applyStyle(const otk::RenderStyle &style);
  93   void layoutTitle();
  94   void renderLabel();
  95
  96 public:
  97   //! Constructs an Frame object for a client
  98   /*!
  99     @param client The client which will be decorated by the new Frame
 100   */
 101   Frame(Client *client);
 102   //! Destroys the Frame object
 103   virtual ~Frame();
 104
 105   //! Returns the size of the frame on each side of the client
 106   const otk::Strut& size() const { return _size; }
 107
 108   //! Set the style to decorate the frame with
 109   virtual void styleChanged(const otk::RenderStyle &style);
 110
 111   //! Reparents the client window from the root window onto the frame
 112   void grabClient();
 113   //! Reparents the client window back to the root window
 114   void releaseClient();
 115
 116   //! Update the frame's size to match the client
 117   void adjustSize();
 118   //! Update the frame's position to match the client
 119   void adjustPosition();
 120   //! Shape the frame window to the client window
 121   void adjustShape();
 122   //! Update the frame to match the client's new state (for things like toggle
 123   //! buttons, focus, and the title) XXX break this up
 124   void adjustState();
 125   void adjustFocus();
 126   void adjustTitle();
 127
 128   //! Applies gravity to the client's position to find where the frame should
 129   //! be positioned.
 130   /*!
 131     @return The proper coordinates for the frame, based on the client.
 132   */
 133   void clientGravity(int &x, int &y);
 134
 135   //! Reversly applies gravity to the frame's position to find where the client
 136   //! should be positioned.
 137   /*!
 138     @return The proper coordinates for the client, based on the frame.
 139   */
 140   void frameGravity(int &x, int &y);
 141
 142   //! The position and size of the frame window
 143   inline const otk::Rect& area() const { return _area; }
 144
 145   //! Returns if the frame is visible
 146   inline bool visible() const { return _visible; }
 147
 148   //! Shows the frame
 149   void show();
 150   //! Hides the frame
 151   void hide();
 152
 153   //! Returns the MouseContext for the given window id
 154   /*!
 155     Returns '-1' if no valid mouse context exists in the frame for the given
 156     id.
 157   */
 158   ob::MouseContext::MC mouseContext(Window win) const;
 159
 160   //! Gets the window id of the frame's base top-level parent
 161   inline Window window() const { return _frame; }
 162   //! Gets the window id of the client's parent window
 163   inline Window plate() const { return _plate; }
 164
 165   //! Returns a null terminated array of the window ids that make up the
 166   //! frame's decorations.
 167   Window *allWindows() const;
 168 };
 169
 170 }
 171
 172 #endif // __frame_hh