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/*
*
* Compiz mouse cursor trails plugin
*
* mousetrails.h
*
* Copyright : (C) 2008 by Erik Johnson
*
* From code originally written by Dennis Kasprzyk
*
* 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.
*
*/
#include <cmath>
#include <core/core.h>
#include <composite/composite.h>
#include <opengl/opengl.h>
#include <mousepoll/mousepoll.h>
#include "mousetrails_options.h"
// in theory the texture array size should be >= trail size
#define TEXTURES_SIZE 51
class Particle
{
public:
//float life; // particle life
float fade; // fade speed
float width; // particle width
float height; // particle height
float w_mod; // particle size modification during life
float h_mod; // particle size modification during life
float r; // red value
float g; // green value
float b; // blue value
float a; // alpha value
float x; // X position
float y; // Y position
float z; // Z position
float xd;
float yd;
int cursorIndex; // array index of cursor serial number
};
class MouseCursor
{
public:
GLuint texture;
unsigned long cursor_serial;
unsigned short xhot;
unsigned short yhot;
unsigned short width;
unsigned short height;
};
class ParticleSystem
{
public:
int mNumParticles;
Particle *mParticles;
float mSlowdown;
float mThreshold;
Bool mActive;
int mX, mY;
GLuint mBlendMode;
int mLastx, mLasty;
float mDelta;
int mNumDisplayedParticles;
int mLastGen;
float mInitialAlpha;
int mSizeFactor;
Bool mUseMousepoll;
// for random colors
int mColorcounter;
float mR; // red value
float mG; // green value
float mB; // blue value
float mR2; // red value
float mG2; // green value
float mB2; // blue value
int mColorrate;
int mSkip;
int mAtSkip;
int mSpeed;
// Cursor data
MouseCursor mCursors[TEXTURES_SIZE]; // rolling array of cursors grabbed from x
int mLastTextureFilled; // last slot used in textures
unsigned long mLastCursorSerial; // last cursor serial number grabbed from X
int mLastCursorIndex; // ...and its associated array index
// Moved from drawParticles to get rid of spurious malloc's
GLfloat *mVertices_cache;
int mVertex_cache_count;
GLfloat *mCoords_cache;
int mCoords_cache_count;
GLfloat *mColors_cache;
int mColor_cache_count;
void
initParticles (int f_numParticles);
void
drawParticles ();
void
updateParticles (float time);
void
finiParticles ();
void
genNewParticles (int time);
};
class MousetrailsScreen :
public PluginClassHandler <MousetrailsScreen, CompScreen>,
public CompositeScreenInterface,
public GLScreenInterface,
public MousetrailsOptions
{
public:
MousetrailsScreen (CompScreen *screen);
~MousetrailsScreen ();
public:
CompositeScreen *cScreen;
GLScreen *gScreen;
int mPosX;
int mPosY;
Bool mActive;
ParticleSystem *mPs;
MousePoller mPollHandle;
void
preparePaint (int);
bool
glPaintOutput (const GLScreenPaintAttrib &,
const GLMatrix &,
const CompRegion &,
CompOutput *,
unsigned int );
void
donePaint ();
void
damageRegion ();
void
positionUpdate (const CompPoint &p);
bool
terminate (CompAction *action,
CompAction::State state,
CompOption::Vector options);
bool
initiate (CompAction *action,
CompAction::State state,
CompOption::Vector &options);
int
cursorUpdate ();
};
#define MOUSETRAILS_SCREEN(s) \
MousetrailsScreen *ss = MousetrailsScreen::get (s);
class MousetrailsPluginVTable :
public CompPlugin::VTableForScreen <MousetrailsScreen>
{
public:
bool init ();
};
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