Drag and Drop

Details

enum TargetType

typedef enum {
	TargetTextUriList         = 0,
	TargetFileForInode        = 1, 
	TargetFileForMode         = 2, 
	TargetFileForOwner        = 3,
	TargetFileForGroupOwner   = 4,
	TargetFileForLinks        = 5,
	TargetUserName            = 6,
	TargetGroupName           = 7,
	TargetFileForSize         = 8,
	TargetFileForDate         = 9,
	TargetFileForName         = 10,
	TargetStringOption        = 11,
	TargetStringLongOption    = 12,
	TargetStringProgram       = 13,
	TargetUninitialized       = 100
} TargetType;

`TargetTextUriList`
`TargetFileForInode`
`TargetFileForMode`
`TargetFileForOwner`
`TargetFileForGroupOwner`
`TargetFileForLinks`
`TargetUserName`
`TargetGroupName`
`TargetFileForSize`
`TargetFileForDate`
`TargetFileForName`
`TargetStringOption`
`TargetStringLongOption`
`TargetStringProgram`
`TargetUninitialized`	the target type is not set

dnd_get_file_target_list ()

GtkTargetList* dnd_get_file_target_list     (void);

Returns a GtkTargetList usefull for DND target for regular files.

Returns :

a GtkTargetList list for file target sources

dnd_get_dir_target_list ()

GtkTargetList* dnd_get_dir_target_list      (void);

Returns a GtkTargetList usefull for DND target for regular directories.

Returns :

a GtkTargetList list for directory target sources

dnd_init_destination ()

gint        dnd_init_destination            (GtkWidget *widget);

`widget` :
Returns :

on_main_widget_drag_motion ()

gboolean    on_main_widget_drag_motion      (GtkWidget *widget,
                                             GdkDragContext *drag_context,
                                             gint x,
                                             gint y,
                                             guint time,
                                             gpointer user_data);

`widget` :	the GtkWidget where the motion has been found
`drag_context` :	the drag context of the operation
`x` :	the x coordinate of the mouse
`y` :	the y coordinate of the mouse
`time` :	the time when the motion was detected
`user_data` :	the data given by the signal connection
Returns :	TRUE if the motion could be handled (always returns TRUE)

on_main_widget_drag_data_get ()

void        on_main_widget_drag_data_get    (GtkWidget *widget,
                                             GdkDragContext *drag_context,
                                             GtkSelectionData *data,
                                             guint info,
                                             guint time,
                                             gpointer user_data);

Called when we initialized a DnD as a source widget and the target is asking the data. There are some problems with this function, namely:

(1) We store the DnD source CuiWidget with the main_widget object. This is not a nice solution IMHO.

`widget` :	the GtkTextView widget where the DnD was initiated
`drag_context` :	the GdkDragContext we created at the begin
`data` :	the GtkSelectionData we have to fill
`info` :	the size of the data units
`time` :	what was the time when the data was received
`user_data` :	pointer to the data gave by the signal connection command