Differential D13740 Diff 36926 libkwineffects/kwineffects.h

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libkwineffects/kwineffects.h

1/******************************************************************** 1​/********************************************************************
2 KWin - the KDE window manager 2​ KWin - the KDE window manager
3 This file is part of the KDE project. 3​ This file is part of the KDE project.
4 4​
5Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org> 5​Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
6Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com> 6​Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
7Copyright (C) 2010, 2011 Martin Gräßlin <mgraesslin@kde.org> 7​Copyright (C) 2010, 2011 Martin Gräßlin <mgraesslin@kde.org>
8​Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.com>
8 9​
9This program is free software; you can redistribute it and/or modify 10​This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by 11​it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or 12​the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version. 13​(at your option) any later version.
13 14​
14This program is distributed in the hope that it will be useful, 15​This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of 16​but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details. 18​GNU General Public License for more details.
18 19​
19You should have received a copy of the GNU General Public License 20​You should have received a copy of the GNU General Public License
20along with this program. If not, see <http://www.gnu.org/licenses/>. 21​along with this program. If not, see <http://www.gnu.org/licenses/>.
21*********************************************************************/ 22​*********************************************************************/
22 23​
23#ifndef KWINEFFECTS_H 24​#ifndef KWINEFFECTS_H
24#define KWINEFFECTS_H 25​#define KWINEFFECTS_H
25 26​
26#include <kwinconfig.h> 27​#include <kwinconfig.h>
27#include <kwineffects_export.h> 28​#include <kwineffects_export.h>
28#include <kwinglobals.h> 29​#include <kwinglobals.h>
29 30​
31​#include <QEasingCurve>
30#include <QIcon> 32​#include <QIcon>
31#include <QPair> 33​#include <QPair>
32#include <QSet> 34​#include <QSet>
33#include <QRect> 35​#include <QRect>
34#include <QRegion> 36​#include <QRegion>
35#include <QVector2D> 37​#include <QVector2D>
36#include <QVector3D> 38​#include <QVector3D>
37 39​
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181 * For more information about this, see the documentation of the corresponding 183​ * For more information about this, see the documentation of the corresponding
182 * classes. 184​ * classes.
183 * 185​ *
184 * @{ 186​ * @{
185 **/ 187​ **/
186 188​
187#define KWIN_EFFECT_API_MAKE_VERSION( major, minor ) (( major ) << 8 | ( minor )) 189​#define KWIN_EFFECT_API_MAKE_VERSION( major, minor ) (( major ) << 8 | ( minor ))
188#define KWIN_EFFECT_API_VERSION_MAJOR 0 190​#define KWIN_EFFECT_API_VERSION_MAJOR 0
189#define KWIN_EFFECT_API_VERSION_MINOR 225 191​#define KWIN_EFFECT_API_VERSION_MINOR 226
190#define KWIN_EFFECT_API_VERSION KWIN_EFFECT_API_MAKE_VERSION( \ 192​#define KWIN_EFFECT_API_VERSION KWIN_EFFECT_API_MAKE_VERSION( \
191 KWIN_EFFECT_API_VERSION_MAJOR, KWIN_EFFECT_API_VERSION_MINOR ) 193​ KWIN_EFFECT_API_VERSION_MAJOR, KWIN_EFFECT_API_VERSION_MINOR )
192 194​
193enum WindowQuadType { 195​enum WindowQuadType {
194 WindowQuadError, // for the stupid default ctor 196​ WindowQuadError, // for the stupid default ctor
195 WindowQuadContents, 197​ WindowQuadContents,
196 WindowQuadDecoration, 198​ WindowQuadDecoration,
197 // Shadow Quad types 199​ // Shadow Quad types
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3279protected: 3281​protected:
3280 void setScreenProjectionMatrix(const QMatrix4x4 &projection); 3282​ void setScreenProjectionMatrix(const QMatrix4x4 &projection);
3281 3283​
3282private: 3284​private:
3283 EffectFramePrivate* const d; 3285​ EffectFramePrivate* const d;
3284}; 3286​};
3285 3287​
3286/** 3288​/**
3289​ * The TimeLine class is a helper for controlling animations.
3290​ **/
3291​class KWINEFFECTS_EXPORT TimeLine
3292​{
3293​public:
3294​ /**
3295​ * Direction of the timeline.
3296​ *
3297​ * When the direction of the timeline is Forward, the progress
3298​ * value will go from 0.0 to 1.0.
3299​ *
3300​ * When the direction of the timeline is Backward, the progress
3301​ * value will go from 1.0 to 0.0.
3302​ **/
3303​ enum Direction {
3304​ Forward,
3305​ Backward
3306​ };
3307​
3308​ /**
3309​ * Constructs a new instance of TimeLine.
3310​ *
3311​ * @param duration Duration of the timeline, in milliseconds
3312​ * @param direction Direction of the timeline
3313​ * @since 5.14
3314​ **/
3315​ explicit TimeLine(std::chrono::milliseconds duration = std::chrono::milliseconds(1000),
graesslinUnsubmitted
Done

As it's new API: maybe use std::chrono::msec instead of int.

graesslin: As it's new API: maybe use std::chrono::msec instead of int.
zzagAuthorUnsubmitted
Done

Not sure if it is worth it right now. That would be the only place where std::chrono::milliseconds is used. Maybe, it would be better to switch to std::chrono::milliseconds in the next major release(KWin 6)? So animationTime, prePaintScreen, and prePaintWindow use it too.

zzag: Not sure if it is worth it right now. That would be the only place where std::chrono…
graesslinUnsubmitted
Done

We don't need to wait for KWin 6 for this. If we want to use chrono, we can integrate and in worst case have to change the ABI. Personally I think it is worth it as it gives way more semantics to the API. If we start with new code it will be easier to migrate the code in future.

From having done two large ports in KWin: I would start with such a small class.

So for long time perspective I would say it's worth to start now and it's not a problem to mix it. Just like QTimer supports chrono now.

graesslin: We don't need to wait for KWin 6 for this. If we want to use chrono, we can integrate and in…
3316​ Direction direction = Forward);
3317​ TimeLine(const TimeLine &other);
3318​ ~TimeLine();
3319​
3320​ /**
3321​ * Returns the current value of the timeline.
3322​ *
3323​ * @since 5.14
3324​ **/
3325​ qreal value() const;
3326​
3327​ /**
3328​ * Updates the progress of the timeline.
3329​ *
romanggUnsubmitted
Not Done

Name it differently, could be confused with l- and rvalues.

romangg: Name it differently, could be confused with l- and rvalues.
3330​ * @note The delta value should be a non-negative number, i.e. it
3331​ * should be greater or equal to 0.
3332​ *
3333​ * @param delta The number milliseconds passed since last frame
3334​ * @since 5.14
3335​ **/
3336​ void update(std::chrono::milliseconds delta);
3337​
3338​ /**
3339​ * Returns the number of elapsed milliseconds.
3340​ *
3341​ * @see setElapsed
3342​ * @since 5.14
3343​ **/
3344​ std::chrono::milliseconds elapsed() const;
3345​
3346​ /**
3347​ * Sets the number of elapsed milliseconds.
3348​ *
3349​ * This method overwrites previous value of elapsed milliseconds.
3350​ * If the new value of elapsed milliseconds is greater or equal
3351​ * to duration of the timeline, the timeline will be finished, i.e.
3352​ * proceeding TimeLine::done method calls will return @c true.
3353​ * Please don't use it. Instead, use TimeLine::update.
3354​ *
3355​ * @note The new number of elapsed milliseconds should be a non-negative
3356​ * number, i.e. it should be greater or equal to 0.
3357​ *
3358​ * @param elapsed The new number of elapsed milliseconds
3359​ * @see elapsed
3360​ * @since 5.14
3361​ **/
3362​ void setElapsed(std::chrono::milliseconds elapsed);
3363​
3364​ /**
3365​ * Returns the duration of the timeline.
3366​ *
3367​ * @returns Duration of the timeline, in milliseconds
3368​ * @see setDuration
3369​ * @since 5.14
3370​ **/
3371​ std::chrono::milliseconds duration() const;
3372​
3373​ /**
3374​ * Sets the duration of the timeline.
3375​ *
3376​ * In addition to setting new value of duration, the timeline will
3377​ * try to retarget the number of elapsed milliseconds to match
3378​ * as close as possible old progress value. If the new duration
3379​ * is much smaller than old duration, there is a big chance that
3380​ * the timeline will be finished after setting new duration.
3381​ *
3382​ * @note The new duration should be a positive number, i.e. it
3383​ * should be greater or equal to 1.
3384​ *
3385​ * @param duration The new duration of the timeline, in milliseconds
3386​ * @see duration
3387​ * @since 5.14
3388​ **/
3389​ void setDuration(std::chrono::milliseconds duration);
3390​
3391​ /**
3392​ * Returns the direction of the timeline.
3393​ *
3394​ * @returns Direction of the timeline(TimeLine::Forward or TimeLine::Backward)
3395​ * @see setDirection
3396​ * @see toggleDirection
3397​ * @since 5.14
3398​ **/
3399​ Direction direction() const;
3400​
3401​ /**
3402​ * Sets the direction of the timeline.
3403​ *
3404​ * @param direction The new direction of the timeline
3405​ * @see direction
3406​ * @see toggleDirection
3407​ * @since 5.14
3408​ **/
3409​ void setDirection(Direction direction);
3410​
3411​ /**
3412​ * Toggles the direction of the timeline.
3413​ *
3414​ * If the direction of the timeline was TimeLine::Forward, it becomes
3415​ * TimeLine::Backward, and vice verca.
3416​ *
3417​ * @see direction
3418​ * @see setDirection
3419​ * @since 5.14
3420​ **/
3421​ void toggleDirection();
3422​
3423​ /**
3424​ * Returns the easing curve of the timeline.
3425​ *
3426​ * @see setEasingCurve
3427​ * @since 5.14
3428​ **/
3429​ QEasingCurve easingCurve() const;
3430​
3431​ /**
3432​ * Sets new easing curve.
3433​ *
3434​ * @param easingCurve An easing curve to be set
3435​ * @see easingCurve
3436​ * @since 5.14
3437​ **/
3438​ void setEasingCurve(const QEasingCurve &easingCurve);
3439​
3440​ /**
3441​ * Sets new easing curve by providing its type.
3442​ *
3443​ * @param type Type of the easing curve(e.g. QEasingCurve::InQuad, etc)
3444​ * @see easingCurve
3445​ * @since 5.14
3446​ **/
3447​ void setEasingCurve(QEasingCurve::Type type);
3448​
3449​ /**
3450​ * Returns whether the timeline is currently in progress.
3451​ *
3452​ * @see done
3453​ * @since 5.14
3454​ **/
3455​ bool running() const;
3456​
3457​ /**
3458​ * Returns whether the timeline is finished.
3459​ *
3460​ * @see reset
3461​ * @since 5.14
3462​ **/
3463​ bool done() const;
3464​
3465​ /**
3466​ * Resets the timeline to initial state.
3467​ *
3468​ * @since 5.14
3469​ **/
3470​ void reset();
3471​
3472​ TimeLine &operator=(const TimeLine &other);
3473​
graesslinUnsubmitted
Done

Please use a d-ptr

graesslin: Please use a d-ptr
3474​private:
3475​ qreal progress() const;
3476​
3477​private:
3478​ class Data;
3479​ QSharedDataPointer<Data> d;
3480​};
3481​
3482​/**
3287 * Pointer to the global EffectsHandler object. 3483​ * Pointer to the global EffectsHandler object.
3288 **/ 3484​ **/
3289extern KWINEFFECTS_EXPORT EffectsHandler* effects; 3485​extern KWINEFFECTS_EXPORT EffectsHandler* effects;
3290 3486​
3291/*************************************************************** 3487​/***************************************************************
3292 WindowVertex 3488​ WindowVertex
3293***************************************************************/ 3489​***************************************************************/
3294 3490​
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3507void Effect::initConfig() 3703​void Effect::initConfig()
3508{ 3704​{
3509 T::instance(effects->config()); 3705​ T::instance(effects->config());
3510} 3706​}
3511 3707​
3512} // namespace 3708​} // namespace
3513Q_DECLARE_METATYPE(KWin::EffectWindow*) 3709​Q_DECLARE_METATYPE(KWin::EffectWindow*)
3514Q_DECLARE_METATYPE(QList<KWin::EffectWindow*>) 3710​Q_DECLARE_METATYPE(QList<KWin::EffectWindow*>)
3711​Q_DECLARE_METATYPE(KWin::TimeLine)
3515 3712​
3516/** @} */ 3713​/** @} */
3517 3714​
3518#endif // KWINEFFECTS_H 3715​#endif // KWINEFFECTS_H