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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/**
* \file effects.h "Special effects" other than compositor effects.
*
* Before we had a serious compositor, we supported swooping
* rectangles for minimising and so on. These are still supported
* today, even when the compositor is enabled. The file contains two
* parts:
*
* 1) A set of functions, each of which implements a special effect.
* (Only the minimize function does anything interesting; we should
* probably get rid of the rest.)
*
* 2) A set of functions for moving a highlighted wireframe box around
* the screen, optionally with height and width shown in the middle.
* This is used for moving and resizing when reduced_resources is set.
*
* There was formerly a system which allowed callers to drop in their
* own handlers for various things; it was never used (people who want
* their own handlers can just modify this file, after all) and it added
* a good deal of extra complexity, so it has been removed. If you want it,
* it can be found in svn r3769.
*/
/*
* Copyright (C) 2001 Anders Carlsson, 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef META_EFFECTS_H
#define META_EFFECTS_H
#include "util.h"
#include "screen-private.h"
typedef enum
{
META_EFFECT_MINIMIZE,
META_EFFECT_UNMINIMIZE,
META_EFFECT_FOCUS,
META_EFFECT_CLOSE,
META_NUM_EFFECTS
} MetaEffectType;
/**
* A callback which will be called when the effect has finished.
*/
typedef void (* MetaEffectFinished) (gpointer data);
/**
* Performs the minimize effect.
*
* \param window The window we're moving
* \param window_rect Its current state
* \param target Where it should end up
* \param finished Callback for when it's finished
* \param data Data for callback
*/
void meta_effect_run_minimize (MetaWindow *window,
MetaRectangle *window_rect,
MetaRectangle *target,
MetaEffectFinished finished,
gpointer data);
/**
* Performs the unminimize effect. There is no such effect.
* FIXME: delete this.
*
* \param window The window we're moving
* \param icon_rect Its current state
* \param window_rect Where it should end up
* \param finished Callback for when it's finished
* \param data Data for callback
*/
void meta_effect_run_unminimize (MetaWindow *window,
MetaRectangle *window_rect,
MetaRectangle *icon_rect,
MetaEffectFinished finished,
gpointer data);
/**
* Performs the close effect. There is no such effect.
* FIXME: delete this.
*
* \param window The window we're moving
* \param finished Callback for when it's finished
* \param data Data for callback
*/
void meta_effect_run_close (MetaWindow *window,
MetaEffectFinished finished,
gpointer data);
/**
* Performs the focus effect. There is no such effect.
* FIXME: delete this.
*
* \param window The window we're moving
* \param finished Callback for when it's finished
* \param data Data for callback
*/
void meta_effect_run_focus (MetaWindow *window,
MetaEffectFinished finished,
gpointer data);
/**
* Grabs the server and paints a wireframe rectangle on the screen.
* Since this involves starting a grab, please be considerate of other
* users and don't keep the grab for long. You may move the wireframe
* around using meta_effects_update_wireframe() and remove it, and undo
* the grab, using meta_effects_end_wireframe().
*
* \param screen The screen to draw the rectangle on.
* \param rect The size of the rectangle to draw.
* \param width The width to display in the middle (or 0 not to)
* \param height The width to display in the middle (or 0 not to)
*/
void meta_effects_begin_wireframe (MetaScreen *screen,
const MetaRectangle *rect,
int width,
int height);
/**
* Moves a wireframe rectangle around after its creation by
* meta_effects_begin_wireframe(). (Perhaps we ought to remember the old
* positions and not require people to pass them in?)
*
* \param old_rect Where the rectangle is now
* \param old_width The width that was displayed on it (or 0 if there wasn't)
* \param old_height The height that was displayed on it (or 0 if there wasn't)
* \param new_rect Where the rectangle is going
* \param new_width The width that will be displayed on it (or 0 not to)
* \param new_height The height that will be displayed on it (or 0 not to)
*/
void meta_effects_update_wireframe (MetaScreen *screen,
const MetaRectangle *old_rect,
int old_width,
int old_height,
const MetaRectangle *new_rect,
int new_width,
int new_height);
/**
* Removes a wireframe rectangle from the screen and ends the grab started by
* meta_effects_begin_wireframe().
*
* \param old_rect Where the rectangle is now
* \param old_width The width that was displayed on it (or 0 if there wasn't)
* \param old_height The height that was displayed on it (or 0 if there wasn't)
*/
void meta_effects_end_wireframe (MetaScreen *screen,
const MetaRectangle *old_rect,
int width,
int height);
#endif /* META_EFFECTS_H */
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