FramesGluerBase Struct Reference

#include <kis_animation_frame_cache_p.h>

Public Member Functions
virtual void	forgetFrame (int start)=0
	FramesGluerBase (QMap< int, int > &_frames)
bool	glueFrames (const KisTimeSpan &range)
virtual void	moveFrame (int oldStart, int newStart)=0
virtual	~FramesGluerBase ()

Public Attributes
QMap< int, int > &	frames

Detailed Description

Definition at line 13 of file kis_animation_frame_cache_p.h.

Constructor & Destructor Documentation

FramesGluerBase()

FramesGluerBase::FramesGluerBase ( QMap< int, int > & _frames )

inline

Definition at line 15 of file kis_animation_frame_cache_p.h.

: frames(_frames) {}

~FramesGluerBase()

FramesGluerBase::~FramesGluerBase ( )

virtual

Definition at line 259 of file kis_animation_frame_cache.cpp.

{
}

Member Function Documentation

forgetFrame()

virtual void FramesGluerBase::forgetFrame ( int start )

pure virtual

glueFrames()

bool FramesGluerBase::glueFrames

(

const KisTimeSpan &

range

)

Definition at line 263 of file kis_animation_frame_cache.cpp.

                                                         {
    bool framesChanged = false;
 
    if (frames.isEmpty()) return framesChanged;
 
    // find the first element, which `end` is greater or equal to `range.start()`
    auto it = frames.begin();
    for (; it != frames.end(); ++it) {
        if (it.key() + it.value() - 1 >= range.start()) {
            break;
        }
    }
 
    if (it != frames.end()) {
        if (it.key() > range.start()) {
            // Reinsert with an earilier start
            const int oldStart = it.key();
            const int newStart = range.start();
            const int newLength = range.isInfinite() ? -1 : range.duration();
 
            it = frames.erase(it);
            it = frames.insert(newStart, newLength);
            this->moveFrame(oldStart, newStart);
            framesChanged = true;
        }
 
        if (range.isInfinite()) {
            it.value() = -1;
            framesChanged = true;
        } else if (it.value() != -1 && it.key() + it.value() - 1 < range.end()) {
            it.value() = range.end() - it.key() + 1;
            framesChanged = true;
        }
 
        it = std::next(it);
 
        while (it != frames.end()) {
            if (range.isInfinite() || (it.value() != -1 && it.key() + it.value() - 1 <= range.end())) {
                this->forgetFrame(it.key());
                it = frames.erase(it);
                framesChanged = true;
            } else if (it.key() > range.end()) {
                break;
            } else if (it.value() == -1 || it.key() + it.value() - 1 > range.end()) {
                // Reinsert with a later start
                int oldStart = it.key();
                int newStart = range.end() + 1;
                int newLength = it.value() == -1 ? -1 : (it.key() + it.value() - 1 - newStart + 1);
 
                frames.erase(it);
                frames.insert(newStart, newLength);
                this->moveFrame(oldStart, newStart);
                framesChanged = true;
                break;
            } else {
                KIS_SAFE_ASSERT_RECOVER_BREAK(0 && "we should never get here");
            }
        }
    }
 
    return framesChanged;
}

References KisTimeSpan::duration(), KisTimeSpan::end(), forgetFrame(), frames, KisTimeSpan::isInfinite(), KIS_SAFE_ASSERT_RECOVER_BREAK, moveFrame(), and KisTimeSpan::start().

moveFrame()

virtual void FramesGluerBase::moveFrame ( int oldStart, int newStart )

pure virtual

Member Data Documentation

frames

QMap<int, int>& FramesGluerBase::frames

Definition at line 17 of file kis_animation_frame_cache_p.h.

---

The documentation for this struct was generated from the following files:

• libs/ui/kis_animation_frame_cache_p.h
• libs/ui/kis_animation_frame_cache.cpp