KateLayoutCache

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KateLayoutCache Class Reference

#include <katelayoutcache.h>

Inheritance diagram for KateLayoutCache:

Public Member Functions

 KateLayoutCache (KateRenderer *renderer, QObject *parent)
 
bool acceptDirtyLayouts () const
 
void clear ()
 
int displayViewLine (const KTextEditor::Cursor virtualCursor, bool limitToVisible=false)
 
int lastViewLine (int realLine)
 
KateLineLayoutPtr line (const KTextEditor::Cursor realCursor)
 
KateLineLayoutPtr line (int realLine, int virtualLine=-1)
 
void relayoutLines (int startRealLine, int endRealLine)
 
void setAcceptDirtyLayouts (bool accept)
 
void setViewWidth (int width)
 
void setWrap (bool wrap)
 
KateTextLayout textLayout (const KTextEditor::Cursor realCursor)
 
KateTextLayout textLayout (uint realLine, int viewLine)
 
void updateViewCache (const KTextEditor::Cursor startPos, int newViewLineCount=-1, int viewLinesScrolled=0)
 
void viewCacheDebugOutput () const
 
KTextEditor::Cursor viewCacheEnd () const
 
int viewCacheLineCount () const
 
KTextEditor::Cursor viewCacheStart () const
 
int viewLine (const KTextEditor::Cursor realCursor)
 
KateTextLayoutviewLine (int viewLine)
 
int viewLineCount (int realLine)
 
int viewWidth () const
 
bool wrap () const
 
- Public Member Functions inherited from QObject
 QObject (QObject *parent)
 
bool blockSignals (bool block)
 
const QObjectListchildren () const const
 
QMetaObject::Connection connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
 
void deleteLater ()
 
void destroyed (QObject *obj)
 
bool disconnect (const char *signal, const QObject *receiver, const char *method) const const
 
bool disconnect (const QObject *receiver, const char *method) const const
 
void dumpObjectInfo ()
 
void dumpObjectInfo () const const
 
void dumpObjectTree ()
 
void dumpObjectTree () const const
 
QList< QByteArraydynamicPropertyNames () const const
 
virtual bool event (QEvent *e)
 
virtual bool eventFilter (QObject *watched, QEvent *event)
 
findChild (const QString &name, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
 
QList< T > findChildren (const QString &name, Qt::FindChildOptions options) const const
 
bool inherits (const char *className) const const
 
void installEventFilter (QObject *filterObj)
 
bool isWidgetType () const const
 
bool isWindowType () const const
 
void killTimer (int id)
 
virtual const QMetaObjectmetaObject () const const
 
void moveToThread (QThread *targetThread)
 
QString objectName () const const
 
void objectNameChanged (const QString &objectName)
 
QObjectparent () const const
 
QVariant property (const char *name) const const
 
 Q_CLASSINFO (Name, Value)
 
 Q_DISABLE_COPY (Class)
 
 Q_DISABLE_COPY_MOVE (Class)
 
 Q_DISABLE_MOVE (Class)
 
 Q_EMIT Q_EMIT
 
 Q_ENUM (...)
 
 Q_ENUM_NS (...)
 
 Q_ENUMS (...)
 
 Q_FLAG (...)
 
 Q_FLAG_NS (...)
 
 Q_FLAGS (...)
 
 Q_GADGET Q_GADGET
 
 Q_INTERFACES (...)
 
 Q_INVOKABLE Q_INVOKABLE
 
 Q_NAMESPACE Q_NAMESPACE
 
 Q_NAMESPACE_EXPORT (EXPORT_MACRO)
 
 Q_OBJECT Q_OBJECT
 
 Q_PROPERTY (...)
 
 Q_REVISION Q_REVISION
 
 Q_SET_OBJECT_NAME (Object)
 
 Q_SIGNAL Q_SIGNAL
 
 Q_SIGNALS Q_SIGNALS
 
 Q_SLOT Q_SLOT
 
 Q_SLOTS Q_SLOTS
 
qFindChild (const QObject *obj, const QString &name)
 
QList< T > qFindChildren (const QObject *obj, const QRegExp &regExp)
 
QList< T > qFindChildren (const QObject *obj, const QString &name)
 
qobject_cast (const QObject *object)
 
qobject_cast (QObject *object)
 
 QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
 
void removeEventFilter (QObject *obj)
 
void setObjectName (const QString &name)
 
void setParent (QObject *parent)
 
bool setProperty (const char *name, const QVariant &value)
 
bool signalsBlocked () const const
 
int startTimer (int interval, Qt::TimerType timerType)
 
int startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)
 
QThreadthread () const const
 

Additional Inherited Members

- Properties inherited from QObject
 objectName
 
- Static Public Member Functions inherited from QObject
QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
 
QMetaObject::Connection connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
 
bool disconnect (const QMetaObject::Connection &connection)
 
bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
 
bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
 
bool disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
 
QString tr (const char *sourceText, const char *disambiguation, int n)
 
QString trUtf8 (const char *sourceText, const char *disambiguation, int n)
 
- Public Attributes inherited from QObject
typedef QObjectList
 
- Protected Member Functions inherited from QObject
virtual void childEvent (QChildEvent *event)
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void customEvent (QEvent *event)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
bool isSignalConnected (const QMetaMethod &signal) const const
 
int receivers (const char *signal) const const
 
QObjectsender () const const
 
int senderSignalIndex () const const
 
virtual void timerEvent (QTimerEvent *event)
 

Detailed Description

This class handles Kate's caching of layouting information (in KateLineLayout and KateTextLayout).

This information is used primarily by both the view and the renderer.

We outsource the hardcore layouting logic to the renderer, but other than that, this class handles all manipulation of the layout objects.

This is separate from the renderer 1) for clarity 2) so you can have separate caches for separate views of the same document, even for view and printer (if the renderer is made to support rendering onto different targets).

Author
Hamish Rodda <rodda[email protected]@kde[email protected].org>

Definition at line 59 of file katelayoutcache.h.

Member Function Documentation

◆ displayViewLine()

int KateLayoutCache::displayViewLine ( const KTextEditor::Cursor  virtualCursor,
bool  limitToVisible = false 
)

Find the view line of the cursor, relative to the display (0 = top line of view, 1 = second line, etc.)

If limitToVisible is true, the function can return -2 for lines below the view. The idea is to get extra information about where the line lies when its out of the view so the clients doesn't have to make second call of this function with limitToVisible = false and potentionaly rerendering the whole document.

Parameters
virtualCursorcursor position
limitToVisibleif true, limit the search to only visible lines
Returns
line number relative to the display. If limitToVisible is true, then valid values are only positive, negative values are invalid cursors for -1 and -2 for cursor is below the view.

Definition at line 381 of file katelayoutcache.cpp.

◆ line() [1/2]

KateLineLayoutPtr KateLayoutCache::line ( const KTextEditor::Cursor  realCursor)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 314 of file katelayoutcache.cpp.

◆ line() [2/2]

KateLineLayoutPtr KateLayoutCache::line ( int  realLine,
int  virtualLine = -1 
)

Returns the KateLineLayout for the specified line.

If one does not exist, it will be created and laid out. Layouts which are not directly part of the view will be kept until the cache is full or until they are invalidated by other means (eg. the text changes).

Parameters
realLinereal line number of the layout to retrieve.
virtualLinevirtual line number. only needed if you think it may have changed (ie. basically internal to KateLayoutCache)

Definition at line 261 of file katelayoutcache.cpp.

◆ textLayout() [1/2]

KateTextLayout KateLayoutCache::textLayout ( const KTextEditor::Cursor  realCursor)

Returns the layout describing the text line which is occupied by realCursor.

Definition at line 319 of file katelayoutcache.cpp.

◆ textLayout() [2/2]

KateTextLayout KateLayoutCache::textLayout ( uint  realLine,
int  viewLine 
)

Returns the layout of the specified realLine + viewLine.

if viewLine is -1, return the last.

Definition at line 324 of file katelayoutcache.cpp.

◆ viewLine() [1/2]

int KateLayoutCache::viewLine ( const KTextEditor::Cursor  realCursor)

This returns the view line upon which realCursor is situated.

The view line is the number of lines in the view from the first line The supplied cursor should be in real lines.

Make sure cursor column and line is valid

Definition at line 360 of file katelayoutcache.cpp.

◆ viewLine() [2/2]

KateTextLayout & KateLayoutCache::viewLine ( int  viewLine)

Returns the layout of the corresponding line in the view.

Definition at line 329 of file katelayoutcache.cpp.


The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
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