/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

/* Metacity window frame manager widget */

/*
 * Copyright (C) 2001 Havoc Pennington
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef META_FRAMES_H
#define META_FRAMES_H

#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <meta/common.h>
#include "theme-private.h"

typedef enum
{
  META_FRAME_CONTROL_NONE,
  META_FRAME_CONTROL_TITLE,
  META_FRAME_CONTROL_DELETE,
  META_FRAME_CONTROL_MENU,
  META_FRAME_CONTROL_APPMENU,
  META_FRAME_CONTROL_MINIMIZE,
  META_FRAME_CONTROL_MAXIMIZE,
  META_FRAME_CONTROL_UNMAXIMIZE,
  META_FRAME_CONTROL_SHADE,
  META_FRAME_CONTROL_UNSHADE,
  META_FRAME_CONTROL_ABOVE,
  META_FRAME_CONTROL_UNABOVE,
  META_FRAME_CONTROL_STICK,
  META_FRAME_CONTROL_UNSTICK,
  META_FRAME_CONTROL_RESIZE_SE,
  META_FRAME_CONTROL_RESIZE_S,
  META_FRAME_CONTROL_RESIZE_SW,
  META_FRAME_CONTROL_RESIZE_N,
  META_FRAME_CONTROL_RESIZE_NE,
  META_FRAME_CONTROL_RESIZE_NW,
  META_FRAME_CONTROL_RESIZE_W,
  META_FRAME_CONTROL_RESIZE_E,
  META_FRAME_CONTROL_CLIENT_AREA
} MetaFrameControl;

/* This is one widget that manages all the window frames
 * as subwindows.
 */

#define META_TYPE_FRAMES            (meta_frames_get_type ())
#define META_FRAMES(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_FRAMES, MetaFrames))
#define META_FRAMES_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_FRAMES, MetaFramesClass))
#define META_IS_FRAMES(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_FRAMES))
#define META_IS_FRAMES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_FRAMES))
#define META_FRAMES_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_FRAMES, MetaFramesClass))

typedef struct _MetaFrames        MetaFrames;
typedef struct _MetaFramesClass   MetaFramesClass;

typedef struct _MetaUIFrame         MetaUIFrame;

struct _MetaUIFrame
{
  Window xwindow;
  GdkWindow *window;
  GtkStyleContext *style;
  MetaFrameStyle *cache_style;
  PangoLayout *layout;
  int text_height;
  char *title; /* NULL once we have a layout */
  guint shape_applied : 1;
  guint maybe_ignore_leave_notify : 1;

  /* FIXME get rid of this, it can just be in the MetaFrames struct */
  MetaFrameControl prelit_control;
  MetaButtonState button_state;
  int grab_button;
};

struct _MetaFrames
{
  GtkWindow parent_instance;

  GHashTable *text_heights;

  GHashTable *frames;
  MetaUIFrame *last_motion_frame;

  GtkStyleContext *normal_style;
  GHashTable *style_variants;

  MetaGrabOp current_grab_op;
  MetaUIFrame *grab_frame;
  guint grab_button;
  gdouble grab_x;
  gdouble grab_y;

  Window grab_xwindow;
};

struct _MetaFramesClass
{
  GtkWindowClass parent_class;

};

GType        meta_frames_get_type               (void) G_GNUC_CONST;

MetaFrames *meta_frames_new (int screen_number);

void meta_frames_manage_window (MetaFrames *frames,
                                Window      xwindow,
				GdkWindow  *window);
void meta_frames_unmanage_window (MetaFrames *frames,
                                  Window      xwindow);
void meta_frames_set_title (MetaFrames *frames,
                            Window      xwindow,
                            const char *title);

void meta_frames_update_frame_style (MetaFrames *frames,
                                     Window      xwindow);

void meta_frames_repaint_frame (MetaFrames *frames,
                                Window      xwindow);

void meta_frames_get_borders (MetaFrames *frames,
                              Window xwindow,
                              MetaFrameBorders *borders);

cairo_region_t *meta_frames_get_frame_bounds (MetaFrames *frames,
                                              Window      xwindow,
                                              int         window_width,
                                              int         window_height);

void meta_frames_get_mask (MetaFrames *frames,
                           Window      xwindow,
                           guint       width,
                           guint       height,
                           cairo_t    *cr);

void meta_frames_move_resize_frame (MetaFrames *frames,
				    Window      xwindow,
				    int         x,
				    int         y,
				    int         width,
				    int         height);
void meta_frames_queue_draw (MetaFrames *frames,
                             Window      xwindow);

Window meta_frames_get_moving_frame (MetaFrames *frames);

#endif
