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/** PreviewPlugin.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_PREVIEW_PREVIEWPLUGIN_HH
#define FBCOMPOSITOR_PLUGIN_XRENDER_PREVIEW_PREVIEWPLUGIN_HH
#include "Enumerations.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;
/**
* Provides window preview feature for the iconbar.
*/
class PreviewPlugin : public XRenderPlugin {
struct PreviewWindowData;
public :
//--- CONSTRUCTORS AND DESTRUCTORS -------------------------------------
/** Constructor. */
PreviewPlugin(const BaseScreen &screen, const std::vector<FbTk::FbString> &args);
/** Destructor. */
~PreviewPlugin();
//--- ACCESSORS --------------------------------------------------------
/** \returns the name of the plugin. */
const char *pluginName() const;
//--- WINDOW EVENT CALLBACKS -------------------------------------------
/** Called, whenever a new window is created. */
void windowCreated(const BaseCompWindow &window);
/** Called, whenever a window is destroyed. */
void windowDestroyed(const BaseCompWindow &window);
//--- RENDERING ACTIONS ------------------------------------------------
/** Rectangles that the plugin wishes to damage. */
const std::vector<XRectangle> &damagedAreas();
/** Extra rendering actions and jobs. */
const std::vector<XRenderRenderingJob> &extraRenderingActions();
private :
//--- INTERNAL FUNCTIONS -----------------------------------------------
/** Update the preview window data. */
void updatePreviewWindowData(PreviewWindowData &win_preview);
/** Update the preview window position. */
void updatePreviewWindowPos(PreviewWindowData &win_preview);
//--- GENERAL RENDERING VARIABLES --------------------------------------
/** 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;
/** Preview window's mask. */
XRenderPicturePtr m_mask_picture;
/** Timer that signals when the preview window should appear. */
TickTracker m_tick_tracker;
/** Previously modified rectangle. */
XRectangle m_previous_damage;
/** Previously drawn preview window. */
Window m_previous_window;
//--- PREVIEW WINDOW DATA ----------------------------------------------
/** Holds data about the preview window. */
struct PreviewWindowData {
const XRenderWindow &window; ///< The corresponding window object.
XRenderRenderingJob job; ///< Rendering job of this preview object.
};
/** A list of potential preview windows. */
std::map<Window, PreviewWindowData> m_preview_data;
};
//--- INLINE FUNCTIONS -----------------------------------------------------
// Returns the name of the plugin.
inline const char *PreviewPlugin::pluginName() const {
return "preview";
}
}
//--- 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_PREVIEW_PREVIEWPLUGIN_HH
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