IdeBuffer: gnome-builder Reference Manual

## IdeBuffer IdeBuffer |

## Functions

gboolean | ide_buffer_get_busy ()
gboolean | ide_buffer_get_changed_on_volume ()
gsize | ide_buffer_get_change_count ()
GBytes * | ide_buffer_get_content ()
IdeContext * | ide_buffer_get_context ()
IdeDiagnostic * | ide_buffer_get_diagnostic_at_iter ()
IdeFile * | ide_buffer_get_file ()
IdeBufferLineFlags | ide_buffer_get_line_flags ()
gboolean | ide_buffer_get_read_only ()
gboolean | ide_buffer_get_highlight_diagnostics ()
const gchar * | ide_buffer_get_style_scheme_name ()
const gchar * | ide_buffer_get_title ()
void | ide_buffer_set_file ()
void | ide_buffer_set_highlight_diagnostics ()
void | ide_buffer_set_style_scheme_name ()
void | ide_buffer_trim_trailing_whitespace ()
void | ide_buffer_check_for_volume_change ()
void | ide_buffer_get_iter_at_source_location ()
void | ide_buffer_rehighlight ()
void | ide_buffer_get_selection_bounds ()
IdeSymbolResolver * | ide_buffer_get_symbol_resolver ()
void | ide_buffer_get_symbol_at_location_async ()
IdeSymbol * | ide_buffer_get_symbol_at_location_finish ()
void | ide_buffer_hold ()
void | ide_buffer_release ()
gchar * | ide_buffer_get_word_at_iter ()
void | ide_buffer_sync_to_unsaved_files ()

## Properties

gboolean | busy | Read
gboolean | changed-on-volume | Read
IdeContext * | context | Read / Write / Construct Only
IdeFile * | file | Read / Write
gboolean | has-diagnostics | Read
gboolean | highlight-diagnostics | Read / Write
gboolean | read-only | Read
gchar * | style-scheme-name | Read / Write
gchar * | title | Read / Write

## Signals

void | cursor-moved | Run Last
void | line-flags-changed | Run Last
void | loaded | Run Last
void | saved | Run Last

## Types and Values

#define | IDE_TYPE_BUFFER
#define | IDE_BUFFER_LINE_FLAGS_DIAGNOSTICS_MASK
enum | IdeBufferLineFlags
struct | IdeBufferClass
| IdeBuffer

## Object Hierarchy

        GFlags
        ╰── IdeBufferLineFlags
        GObject
        ╰── GtkTextBuffer
            ╰── GtkSourceBuffer
                ╰── IdeBuffer

## Description

## Functions

### ide_buffer_get_busy ()

    gboolean
    ide_buffer_get_busy (IdeBuffer *self);

Gets the “busy” property. Return whether the buffer is performing background work or not.

#### Parameters

self | A IdeBuffer. |

#### Returns

`TRUE` if the IdeBuffer is performing background work. Otherwise `FALSE`.

### ide_buffer_get_changed_on_volume ()

    gboolean
    ide_buffer_get_changed_on_volume (IdeBuffer *self);

Gets if the file backing the buffer has changed on the underlying storage.

Use `ide_buffer_manager_load_file_async()` to reload the buffer.

#### Parameters

self | A IdeBuffer. |

#### Returns

`TRUE` if the file has changed.

### ide_buffer_get_change_count ()

    gsize
    ide_buffer_get_change_count (IdeBuffer *self);

### ide_buffer_get_content ()

    GBytes *
    ide_buffer_get_content (IdeBuffer *self);

Gets the contents of the buffer as GBytes.

By using this function to get the bytes, you allow IdeBuffer to avoid calculating the buffer text unnecessarily, potentially saving on allocations.

Additionally, this allows the buffer to update the state in IdeUnsavedFiles if the content is out of sync.

#### Parameters

self | A IdeBuffer. |

#### Returns

A GBytes containing the buffer content.

[transfer full]

### ide_buffer_get_context ()

    IdeContext *
    ide_buffer_get_context (IdeBuffer *self);

Gets the “context” property. This is the IdeContext that owns the buffer.

#### Parameters

self | A IdeBuffer. |

#### Returns

An IdeContext.

[transfer none]

### ide_buffer_get_diagnostic_at_iter ()

    IdeDiagnostic *
    ide_buffer_get_diagnostic_at_iter (IdeBuffer *self,
                                       const GtkTextIter *iter);

Gets the first diagnostic that overlaps the position

#### Parameters

self | A IdeBuffer. |
iter | a GtkTextIter. |

#### Returns

An IdeDiagnostic or `NULL`.

[transfer none][nullable]

### ide_buffer_get_file ()

    IdeFile *
    ide_buffer_get_file (IdeBuffer *self);

Gets the underlying file behind the buffer.

#### Parameters

self | A IdeBuffer. |

#### Returns

An IdeFile.

[transfer none]

### ide_buffer_get_line_flags ()

    IdeBufferLineFlags
    ide_buffer_get_line_flags (IdeBuffer *self,
                               guint line);

Return the flags set for the IdeBuffer `line` number. (diagnostics and errors messages, line changed or added, notes)

#### Parameters

self | A IdeBuffer. |
line | a buffer line number. |

#### Returns

An IdeBufferLineFlags struct.

[transfer full]

### ide_buffer_get_read_only ()

    gboolean
    ide_buffer_get_read_only (IdeBuffer *self);

Gets the “read-only” property. This property indicate if the underlying file is read only or not.

#### Parameters

self | A IdeBuffer. |

#### Returns

`TRUE` if the IdeBuffer is read only. Otherwise `FALSE`.

### ide_buffer_get_highlight_diagnostics ()

    gboolean
    ide_buffer_get_highlight_diagnostics (IdeBuffer *self);

Gets the “highlight-diagnostics” property. Return whether the diagnostic warnings and errors should be highlighted.

#### Parameters

self | A IdeBuffer. |

#### Returns

`TRUE` if diagnostics are highlighted. Otherwise `FALSE`.

### ide_buffer_get_style_scheme_name ()

    const gchar *
    ide_buffer_get_style_scheme_name (IdeBuffer *self);

Gets the “style-scheme-name” property. This property contains the current style scheme used by the buffer.

#### Parameters

self | A IdeBuffer. |

#### Returns

A string containing the name of the currently used style scheme.

[transfer none]

### ide_buffer_get_title ()

    const gchar *
    ide_buffer_get_title (IdeBuffer *self);

Gets the “title” property. This property contains a title for the buffer suitable for display.

#### Parameters

self | A IdeBuffer. |

#### Returns

A string containing the buffer title.

### ide_buffer_set_file ()

    void
    ide_buffer_set_file (IdeBuffer *self,
                         IdeFile *file);

Sets the underlying file to use when saving and loading `self` to and from storage.

#### Parameters

self | A IdeBuffer. |
file | An IdeFile. |

### ide_buffer_set_highlight_diagnostics ()

    void
    ide_buffer_set_highlight_diagnostics (IdeBuffer *self,
                                          gboolean highlight_diagnostics);

Sets the “highlight-diagnostics” property. Sets whether the diagnostic warnings and errors should be highlighted.

#### Parameters

self | A IdeBuffer. |
highlight_diagnostics | Whether to highlight the diagnostics or not. |

### ide_buffer_set_style_scheme_name ()

    void
    ide_buffer_set_style_scheme_name (IdeBuffer *self,
                                      const gchar *style_scheme_name);

Sets the “style-scheme-name” property. Sets the style scheme to be used by this buffer.

#### Parameters

self | A IdeBuffer. |
style_scheme_name | A string containing the name of the style scheme to use. |

### ide_buffer_trim_trailing_whitespace ()

    void
    ide_buffer_trim_trailing_whitespace (IdeBuffer *self);

Trim trailing whitespaces from the buffer.

#### Parameters

self | A IdeBuffer. |

### ide_buffer_check_for_volume_change ()

    void
    ide_buffer_check_for_volume_change (IdeBuffer *self);

Update the “read-only” property and the corresponding modification time (mtime).

#### Parameters

self | A IdeBuffer. |

### ide_buffer_get_iter_at_source_location ()

    void
    ide_buffer_get_iter_at_source_location
                                   (IdeBuffer *self,
                                    GtkTextIter *iter,
                                    IdeSourceLocation *location);

Fill `iter` with the position designated by `location` .

#### Parameters

self | A IdeBuffer. |
iter | a GtkTextIter. | [out]
location | a IdeSourceLocation. |

### ide_buffer_rehighlight ()

    void
    ide_buffer_rehighlight (IdeBuffer *self);

Force the IdeBuffer to rebuild the highlight.

#### Parameters

self | A IdeBuffer. |

### ide_buffer_get_selection_bounds ()

    void
    ide_buffer_get_selection_bounds (IdeBuffer *self,
                                     GtkTextIter *insert,
                                     GtkTextIter *selection);

This function acts like `gtk_text_buffer_get_selection_bounds()` except that it always places the location of the insert mark at `insert` and the location of the selection mark at `selection` .

Calling `gtk_text_iter_order()` with the results of this function would be equivalent to calling `gtk_text_buffer_get_selection_bounds()`.

#### Parameters

self | A IdeBuffer. |
insert | A GtkTextIter to get the insert position. | [out]
selection | A GtkTextIter to get the selection position. | [out]

### ide_buffer_get_symbol_resolver ()

    IdeSymbolResolver *
    ide_buffer_get_symbol_resolver (IdeBuffer *self);

Gets the symbol resolver for the buffer based on the current language.

#### Parameters

self | A IdeBuffer. |

#### Returns

An IdeSymbolResolver or `NULL`.

[nullable][transfer none]

### ide_buffer_get_symbol_at_location_async ()

    void
    ide_buffer_get_symbol_at_location_async
                                   (IdeBuffer *self,
                                    const GtkTextIter *location,
                                    GCancellable *cancellable,
                                    GAsyncReadyCallback callback,
                                    gpointer user_data);

Asynchronously get a possible symbol at `location` .

#### Parameters

self | A IdeBuffer. |
location | a GtkTextIter indicating a position to search for a symbol. |
cancellable | A GCancellable. |
callback | A GAsyncReadyCallback. |
user_data | A gpointer to hold user data. |

### ide_buffer_get_symbol_at_location_finish ()

    IdeSymbol *
    ide_buffer_get_symbol_at_location_finish
                                   (IdeBuffer *self,
                                    GAsyncResult *result,
                                    GError **error);

Completes an asynchronous request to locate a symbol at a location.

#### Parameters

self | A IdeBuffer. |
result | A GAsyncResult. |
error | A GError. | [out]

#### Returns

An IdeSymbol or `NULL`.

[transfer full]

### ide_buffer_hold ()

    void
    ide_buffer_hold (IdeBuffer *self);

### ide_buffer_release ()

    void
    ide_buffer_release (IdeBuffer *self);

### ide_buffer_get_word_at_iter ()

    gchar *
    ide_buffer_get_word_at_iter (IdeBuffer *self,
                                 const GtkTextIter *iter);

Gets the word found under the position denoted by `iter` .

#### Parameters

self | A IdeBuffer. |
iter | A GtkTextIter. |

#### Returns

A newly allocated string.

[transfer full]

### ide_buffer_sync_to_unsaved_files ()

    void
    ide_buffer_sync_to_unsaved_files (IdeBuffer *self);

## Types and Values

### IDE_TYPE_BUFFER

    #define IDE_TYPE_BUFFER (ide_buffer_get_type ())

### IDE_BUFFER_LINE_FLAGS_DIAGNOSTICS_MASK

    #define             IDE_BUFFER_LINE_FLAGS_DIAGNOSTICS_MASK

### enum IdeBufferLineFlags

#### Members

IDE_BUFFER_LINE_FLAGS_NONE |  |
IDE_BUFFER_LINE_FLAGS_ADDED |  |
IDE_BUFFER_LINE_FLAGS_CHANGED |  |
IDE_BUFFER_LINE_FLAGS_DELETED |  |
IDE_BUFFER_LINE_FLAGS_ERROR |  |
IDE_BUFFER_LINE_FLAGS_WARNING |  |
IDE_BUFFER_LINE_FLAGS_NOTE |  |

### struct IdeBufferClass

    struct IdeBufferClass {
      GtkSourceBufferClass parent_class;

      void (*cursor_moved) (IdeBuffer         *self,
                            const GtkTextIter *location);
    };

### IdeBuffer

    typedef struct _IdeBuffer IdeBuffer;

## Property Details

### The `“busy”` property

      “busy”                     gboolean

If the buffer is performing background work.

Flags: Read

Default value: FALSE

### The `“changed-on-volume”` property

      “changed-on-volume”        gboolean

If the file has changed on disk and the buffer is not in sync.

Flags: Read

Default value: FALSE

### The `“context”` property

      “context”                  IdeContext *

The IdeContext for the buffer.

Flags: Read / Write / Construct Only

### The `“file”` property

      “file”                     IdeFile *

The file represented by the buffer.

Flags: Read / Write

### The `“has-diagnostics”` property

      “has-diagnostics”          gboolean

If the buffer contains diagnostic messages.

Flags: Read

Default value: FALSE

### The `“highlight-diagnostics”` property

      “highlight-diagnostics”    gboolean

If diagnostic warnings and errors should be highlighted.

Flags: Read / Write

Default value: TRUE

### The `“read-only”` property

      “read-only”                gboolean

If the underlying file is read only.

Flags: Read

Default value: FALSE

### The `“style-scheme-name”` property

      “style-scheme-name”        gchar *

Style Scheme Name.

Flags: Read / Write

Default value: NULL

### The `“title”` property

      “title”                    gchar *

The title of the buffer.

Flags: Read / Write

Default value: NULL

## Signal Details

### The `“cursor-moved”` signal

    void
    user_function (IdeBuffer   *self,
                   GtkTextIter *location,
                   gpointer     user_data)

This signal is emitted when the insertion location has moved. You might want to attach to this signal to update the location of the insert mark in the display.

#### Parameters

self | An IdeBuffer. |
location | A GtkTextIter. |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“line-flags-changed”` signal

    void
    user_function (IdeBuffer *arg0,
                   gpointer   user_data)

This signal is emitted when the calculated line flags have changed. This occurs when diagnostics and line changes have been recalculated.

#### Parameters

user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“loaded”` signal

    void
    user_function (IdeBuffer *arg0,
                   gpointer   user_data)

This signal is emitted when the buffer manager has completed loading the file.

#### Parameters

user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“saved”` signal

    void
    user_function (IdeBuffer *arg0,
                   gpointer   user_data)

This signal is emitted when the buffer manager has completed saving the file.

#### Parameters

user_data | user data set when the signal handler was connected. |

Flags: Run Last