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/** Compositor.hh file for the fluxbox compositor. */
// Copyright (c) 2011 Gediminas Liktaras (gliktaras at gmail dot com)
//
// 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 FBCOMPOSITOR_COMPOSITOR_HH
#define FBCOMPOSITOR_COMPOSITOR_HH
#include "Enumerations.hh"
#include "Exceptions.hh"
#include "TickTracker.hh"
#include "FbTk/App.hh"
#include <X11/Xlib.h>
#include <vector>
namespace FbCompositor {
class BaseScreen;
class CompositorConfig;
//--- TYPEDEFS -------------------------------------------------------------
/** A pointer to an X query extension function. */
typedef Bool (*QueryExtensionFunction)(Display*, int*, int*);
/** A pointer to an X query version function. */
typedef Status (*QueryVersionFunction)(Display*, int*, int*);
//--- MAIN COMPOSITOR CLASS ------------------------------------------------
/**
* Main class for the compositor.
*
* Note that if the serverauto rendering mode is selected, ServerAutoApp is
* used instead. This was done to take out the ad-hoc code out of this
* class, since this class is too complex for serverauto rendering.
*/
class Compositor : public FbTk::App {
public:
//--- CONSTRUCTORS AND DESTRUCTORS -------------------------------------
/** Constructor. */
Compositor(const CompositorConfig &configuration);
/** Destructor. */
~Compositor();
//--- EVENT LOOP -------------------------------------------------------
/** Enters the event loop. */
void eventLoop();
private:
//--- CONSTRUCTORS -----------------------------------------------------
/** Copy constructor. */
Compositor(const Compositor&);
/** Assignment operator. */
Compositor &operator=(const Compositor&);
//--- INITIALIZATION FUNCTIONS -----------------------------------------
/** Acquire the ownership of compositing manager selections. */
Window getCMSelectionOwnership(int screen_number);
/** Initializes all relevant X's extensions. */
void initAllExtensions();
/** Initializes a particular X server extension. */
void initExtension(const char *extension_name, QueryExtensionFunction extension_func,
QueryVersionFunction version_func, const int min_major_ver, const int min_minor_ver,
int &event_base, int &error_base);
/** Initializes monitor heads on every screen. */
void initHeads();
//--- INTERNAL FUNCTIONS -----------------------------------------------
/** \returns the exposed area in a XExposeEvent as an XRectangle. */
XRectangle getExposedRect(const XExposeEvent &event);
/** Locates the screen an event affects. Returns -1 on failure. */
int screenOfEvent(const XEvent &event);
//--- COMPOSITOR VARIABLES ---------------------------------------------
/** A tick tracker that controls when the screen is redrawn. */
TickTracker m_timer;
/** Rendering mode in use. */
RenderingMode m_rendering_mode;
/** The array of available screens. */
std::vector<BaseScreen*> m_screens;
//--- EXTENSION BASE VARIABLES -----------------------------------------
/** Event base of the X Composite extension. */
int m_composite_event_base;
/** Error base of the X Composite extension. */
int m_composite_error_base;
/** Event base of the X Damage extension. */
int m_damage_event_base;
/** Error base of the X Damage extension. */
int m_damage_error_base;
/** Event base of the GLX extension. */
int m_glx_event_base;
/** Error base of the GLX extension. */
int m_glx_error_base;
/** Event base of the X Fixes extension. */
int m_fixes_event_base;
/** Error base of the X Fixes extension. */
int m_fixes_error_base;
/** Event base of the X Render extension. */
int m_render_event_base;
/** Error base of the X Render extension. */
int m_render_error_base;
/** Event base of the X Shape extension. */
int m_shape_event_base;
/** Error base of the X Shape extension. */
int m_shape_error_base;
/** Event base of the Xinerama extension. */
int m_xinerama_event_base;
/** Error base of the Xinerama extension. */
int m_xinerama_error_base;
};
//--- VARIOUS HANDLERS -----------------------------------------------------
/** Custom signal handler. */
void handleSignal(int signal);
/** Custom X error handler (ignore). */
int ignoreXError(Display *display, XErrorEvent *error);
/** Custom X error handler (print, continue). */
int printXError(Display *display, XErrorEvent *error);
}
#endif // FBCOMPOSITOR_COMPOSITOR_HH
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