Implemented the recode dialogs.
[pspp-builds.git] / src / ui / gui / psppire-selector.h
1 /* PSPPIRE - a graphical user interface for PSPP.
2    Copyright (C) 2007  Free Software Foundation
3
4    This program is free software: you can redistribute it and/or modify
5    it under the terms of the GNU General Public License as published by
6    the Free Software Foundation, either version 3 of the License, or
7    (at your option) any later version.
8
9    This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12    GNU General Public License for more details.
13
14    You should have received a copy of the GNU General Public License
15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
16
17
18 #ifndef __PSPPIRE_SELECTOR_H__
19 #define __PSPPIRE_SELECTOR_H__
20
21
22 #include <glib.h>
23 #include <glib-object.h>
24 #include <gtk/gtkbutton.h>
25 #include <gtk/gtkaction.h>
26 #include <gtk/gtkarrow.h>
27 #include <gtk/gtktreemodel.h>
28 #include <gtk/gtktreemodelfilter.h>
29
30 G_BEGIN_DECLS
31
32 #define PSPPIRE_SELECTOR_TYPE            (psppire_selector_get_type ())
33 #define PSPPIRE_SELECTOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), PSPPIRE_SELECTOR_TYPE, PsppireSelector))
34 #define PSPPIRE_SELECTOR_CLASS(class)    (G_TYPE_CHECK_CLASS_CAST ((class), \
35     PSPPIRE_SELECTOR_TYPE, PsppireSelectorClass))
36 #define PSPPIRE_IS_SELECTOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
37     PSPPIRE_SELECTOR_TYPE))
38 #define PSPPIRE_IS_SELECTOR_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), \
39     PSPPIRE_SELECTOR_TYPE))
40
41
42 typedef struct _PsppireSelector       PsppireSelector;
43 typedef struct _PsppireSelectorClass  PsppireSelectorClass;
44
45
46 /* Function for appending selected items to the destination widget */
47 typedef void SelectItemsFunc (GtkTreeIter iter,
48                               GtkWidget *dest,
49                               GtkTreeModel *source_model);
50
51 /* Function to determine if items may be selected */
52 typedef gboolean AllowSelectionFunc (GtkWidget *src, GtkWidget *dest);
53
54
55 /* Function to determine whether an item in MODEL, pointed to by ITER
56    is currently selected.
57
58    Returns TRUE if the item is currently selected, FALSE otherwise.
59  */
60 typedef gboolean FilterItemsFunc (GtkTreeModel *model,
61                                   GtkTreeIter *iter,
62                                   PsppireSelector *selector);
63
64 enum psppire_selector_dir
65   {
66     PSPPIRE_SELECTOR_SOURCE_TO_DEST,
67     PSPPIRE_SELECTOR_DEST_TO_SOURCE
68   };
69
70
71 struct _PsppireSelector
72 {
73   GtkButton parent;
74
75   /* <private> */
76   GtkWidget *arrow;
77   GtkAction *action;
78
79   enum psppire_selector_dir direction;
80   GtkWidget *source;
81   GtkWidget *dest;
82
83   /* A flag indicating that the object is in the process of
84      updating its subjects.
85      (not thread safe if two threads access the same object)
86   */
87   gboolean selecting;
88
89   gint orientation;
90
91   GtkTreeModelFilter *filtered_source;
92
93   SelectItemsFunc *select_items;
94   FilterItemsFunc *filter;
95
96   AllowSelectionFunc *allow_selection;
97 };
98
99 struct _PsppireSelectorClass
100 {
101   GtkButtonClass parent_class;
102
103   /* This is a hash of Lists of FilterItemsFunc pointers, keyed by address of
104      the source widget */
105   GHashTable *source_hash;
106 };
107
108 GType      psppire_selector_get_type        (void);
109 GtkWidget* psppire_selector_new             (void);
110 void       psppire_selector_set_subjects    (PsppireSelector *,
111                                              GtkWidget *,
112                                              GtkWidget *,
113                                              SelectItemsFunc *,
114                                              FilterItemsFunc * );
115
116 void      psppire_selector_set_allow        (PsppireSelector *, AllowSelectionFunc *);
117
118
119 GType psppire_selector_orientation_get_type (void) G_GNUC_CONST;
120
121
122 typedef enum {
123   PSPPIRE_SELECT_SOURCE_BEFORE_DEST,
124   PSPPIRE_SELECT_SOURCE_AFTER_DEST,
125   PSPPIRE_SELECT_SOURCE_ABOVE_DEST,
126   PSPPIRE_SELECT_SOURCE_BELOW_DEST
127 } PsppireSelectorOrientation;
128
129 #define G_TYPE_PSPPIRE_SELECTOR_ORIENTATION \
130   (psppire_selector_orientation_get_type())
131
132
133
134 G_END_DECLS
135
136 #endif /* __PSPPIRE_SELECTOR_H__ */