VDKTextBuffer Class Reference

Provides a gtk+ gtktextbuffer wrapper. More...

#include <vdktextview.h>

Inheritance diagram for VDKTextBuffer:

List of all members.

Public Member Functions

• VDKTextBuffer ()
• VDKTextBuffer (char *filename)
• virtual ~VDKTextBuffer ()
• bool LoadFromFile (const char *filename)
• bool SaveToFile (const char *filename)
• GtkTextBuffer * Buffer ()
• void Clear ()
• void TextInsert (const char *txt, int nchar=-1)
• gchar * GetChars (int start, int end=-1)
• void ForwardDelete (int nchars)
• void BackwardDelete (int nchars)
• void Undo ()
• int GetLineAtOffset (int offset)

Public Attributes

• VDKReadWriteValueProp
  < VDKTextBuffer, int > Pointer
• VDKReadWriteValueProp
  < VDKTextBuffer, int > Column
• VDKReadWriteValueProp
  < VDKTextBuffer, int > Line
• VDKReadWriteValueProp
  < VDKTextBuffer, bool > Changed

Friends

• class VDKTextView

---

Detailed Description

Provides a gtk+ gtktextbuffer wrapper.

Programming notes:

VDKTextBuffer can be shared by several VDKTextView. These objects aren't handled by garbage collection (aren't VDKObjects), however are reference conted so do not need to be explicitely deleted if assigned to a VDKTextView using either the appropriate VDKTextView contructor or VDKText::Buffer() assignement method. If constructed and never assigned to a VDKTextView they need to be explicitely deleted or they will leak.

---

Constructor & Destructor Documentation

VDKTextBuffer::VDKTextBuffer

(

)

Default constructor

VDKTextBuffer::VDKTextBuffer

(

char *

filename

)

Default constructor

Parameters:

filename

builds a text buffer loading file <filename>

VDKTextBuffer::~VDKTextBuffer

(

)

[virtual]

Destructor

---

Member Function Documentation

void VDKTextBuffer::BackwardDelete

(

int

nchars

)

Backward delete chars from insertion point

GtkTextBuffer* VDKTextBuffer::Buffer

(

void

)

[inline]

Returns underlying GtkTextBuffer

void VDKTextBuffer::Clear

(

)

Clears text buffer deleting all text.

void VDKTextBuffer::ForwardDelete

(

int

nchars

)

Forward delete chars from insertion point

gchar * VDKTextBuffer::GetChars	(	int	start,
		int	end = -1
	)

Returns a text segment

Parameters:

start	starting position
end	ending position, if -1 all text buffer from start to end will be returned.

Tip

Invisible chars won't be included. Returned address should be g_free()'d by user.

int VDKTextBuffer::GetLineAtOffset

(

int

offset

)

Gets line number at a buffer position

Parameters:

offset

buffer offset position (counting from 0) on error returns -1

bool VDKTextBuffer::LoadFromFile

(

const char *

filename

)

Load text buffer with a file

Parameters:

filename

to load

bool VDKTextBuffer::SaveToFile

(

const char *

filename

)

Save buffer to file

void VDKTextBuffer::TextInsert	(	const char *	txt,
		int	nchar = -1
	)

Inserts text at cursor position.

Parameters:

txt	null terminating string to be inserted
nchars	how many chars have to be inserted (-1 means all)

void VDKTextBuffer::Undo

(

void

)

[inline]

Undoes last operation

---

Member Data Documentation

VDKReadWriteValueProp<VDKTextBuffer,bool> VDKTextBuffer::Changed

Sets/gets modified flag

VDKReadWriteValueProp<VDKTextBuffer,int> VDKTextBuffer::Column

Sets/gets text insertion position expressed in column offset

VDKReadWriteValueProp<VDKTextBuffer,int> VDKTextBuffer::Line

Sets/gets text insertion position expressed in lines

VDKReadWriteValueProp<VDKTextBuffer,int> VDKTextBuffer::Pointer

Sets/gets text insertion position expressed in chars from text beginning. (counting from 0, gets -1 on failure)

---

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

• vdktextview.h
• vdktextview.cc