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/** FadePlugin.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_PLUGIN_XRENDER_FADE_FADEPLUGIN_HH
#define FBCOMPOSITOR_PLUGIN_XRENDER_FADE_FADEPLUGIN_HH
#include "Enumerations.hh"
#include "Exceptions.hh"
#include "TickTracker.hh"
#include "XRenderPlugin.hh"
#include "XRenderResources.hh"
#include "FbTk/FbString.hh"
#include <X11/Xlib.h>
#include <X11/extensions/Xrender.h>
#include <map>
#include <vector>
namespace FbCompositor {
class BaseScreen;
class XRenderScreen;
class XRenderWindow;
/**
* A simple plugin that provides window fades for XRender renderer.
*/
class FadePlugin : public XRenderPlugin {
public :
//--- CONSTRUCTORS AND DESTRUCTORS -------------------------------------
/** Constructor. */
FadePlugin(const BaseScreen &screen, const std::vector<FbTk::FbString> &args);
/** Destructor. */
~FadePlugin();
//--- ACCESSORS --------------------------------------------------------
/** \returns the name of the plugin. */
const char *pluginName() const;
//--- WINDOW EVENT CALLBACKS -------------------------------------------
/** Called, whenever a window becomes ignored. */
void windowBecameIgnored(const BaseCompWindow &window);
/** Called, whenever a window is mapped. */
void windowMapped(const BaseCompWindow &window);
/** Called, whenever a window is unmapped. */
void windowUnmapped(const BaseCompWindow &window);
//--- RENDERING ACTIONS ------------------------------------------------
/** Rectangles that the plugin wishes to damage. */
const std::vector<XRectangle> &damagedAreas();
/** Window rendering job initialization. */
void windowRenderingJobInit(const XRenderWindow &window, XRenderRenderingJob &job);
/** Extra rendering actions and jobs. */
const std::vector<XRenderRenderingJob> &extraRenderingActions();
/** Post extra rendering actions. */
void postExtraRenderingActions();
private :
//--- INTERNAL FUNCTIONS -----------------------------------------------
/** \returns the faded mask picture for the given window fade. */
void createFadedMask(int alpha, XRenderPicturePtr mask, XRectangle dimensions,
XRenderPicturePtr fade_picture_return);
//--- GENERAL RENDERING VARIABLES --------------------------------------
/** PictFormat for fade pictures. */
XRenderPictFormat *m_fade_pict_format;
/** Vector, containing the areas that the plugin wishes to paint. */
std::vector<XRectangle> m_damaged_areas;
/** Vector, containing the plugin's extra rendering jobs. */
std::vector<XRenderRenderingJob> m_extra_jobs;
//--- FADE SPECIFIC ----------------------------------------------------
/** Holds the data about positive fades. */
struct PosFadeData {
XRectangle dimensions; ///< Window's dimensions.
int fade_alpha; ///< Window's relative fade alpha.
XRenderPicturePtr fade_picture; ///< Picture of the faded window.
TickTracker timer; ///< Timer that tracks the current fade.
};
/** A list of appearing (positive) fades. */
std::map<Window, PosFadeData> m_positive_fades;
/** Holds the data about positive fades. */
struct NegFadeData {
Window window_id; ///< ID of the window that is being faded.
XRenderRenderingJob job; ///< Rendering job, associated with this fade.
XRenderPicturePtr mask_picture; ///< Window's shape mask.
XRectangle dimensions; ///< Window's dimensions.
int fade_alpha; ///< Window's relative fade alpha.
XRenderPicturePtr fade_picture; ///< Picture of the faded window.
TickTracker timer; ///< Timer that tracks the current fade.
};
/** A list of disappearing (negative) fades. */
std::vector<NegFadeData> m_negative_fades;
};
//--- INLINE FUNCTIONS -----------------------------------------------------
// Returns the name of the plugin.
inline const char *FadePlugin::pluginName() const {
return "fade";
}
}
//--- PLUGIN MANAGER FUNCTIONS -------------------------------------------------
/** Creates a plugin object. */
extern "C" FbCompositor::BasePlugin *createPlugin(const FbCompositor::BaseScreen &screen, const std::vector<FbTk::FbString> &args);
/** \returns the type of the plugin. */
extern "C" FbCompositor::PluginType pluginType();
#endif // FBCOMPOSITOR_PLUGIN_XRENDER_FADE_FADEPLUGIN_HH
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