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45516216 | 1 | enum { |
2 | GTK_POS_LEFT, GTK_POS_RIGHT, GTK_POS_TOP, GTK_POS_BOTTOM, | |
3 | DRAG_OPERATION_NONE, DRAG_OPERATION_REORDER, DRAG_OPERATION_DETACH | |
4 | }; | |
5 | typedef struct { | |
6 | int x; | |
7 | int y; | |
8 | int width; | |
9 | int height; | |
10 | } GdkRectangle; | |
11 | typedef struct { | |
12 | struct { void *parent; } *tab_label; | |
13 | int pack; | |
14 | GdkRectangle requisition, allocation; | |
15 | } GtkNotebookPage; | |
16 | typedef struct { | |
17 | GtkNotebookPage *cur_page; | |
18 | int homogeneous:1; | |
19 | } GtkNotebook; | |
20 | typedef struct { | |
21 | int operation; | |
22 | int x; | |
23 | GtkNotebookPage *detached_tab; | |
24 | } GtkNotebookPrivate; | |
25 | gtk_notebook_calculate_tabs_allocation() | |
26 | { | |
27 | GtkNotebook *notebook; | |
28 | void **children; | |
29 | void *last_child; | |
30 | int remaining_space; | |
31 | int expanded_tabs; | |
32 | GtkNotebookPrivate *priv; | |
33 | GtkNotebookPage *page; | |
34 | int allocate_at_bottom; | |
35 | int tab_extra_space; | |
36 | int x; | |
37 | int y; | |
38 | int anchor; | |
39 | GdkRectangle child_allocation; | |
40 | while (*children && *children == last_child) { | |
41 | if (page->tab_label->parent != notebook) | |
42 | continue; | |
43 | if (expanded_tabs && | |
44 | notebook->homogeneous) | |
45 | tab_extra_space | |
46 | = remaining_space / expanded_tabs; | |
47 | switch (x) { | |
48 | case GTK_POS_TOP: | |
49 | case GTK_POS_BOTTOM: | |
50 | child_allocation.width = | |
51 | page->requisition.width + | |
52 | x+ | |
53 | tab_extra_space; | |
54 | if (x && y) { | |
55 | if (allocate_at_bottom | |
56 | && notebook->cur_page->pack | |
57 | && x > anchor) | |
58 | anchor = | |
59 | notebook->cur_page->allocation. | |
60 | width; | |
61 | } else { | |
62 | if (allocate_at_bottom) | |
63 | anchor = child_allocation.width; | |
64 | if (priv->operation == DRAG_OPERATION_REORDER | |
65 | && page->pack == notebook->cur_page->pack) | |
66 | if ( | |
67 | allocate_at_bottom | |
68 | && | |
69 | x >= anchor | |
70 | && x <= | |
71 | anchor + child_allocation.width / 2) | |
72 | anchor = | |
73 | notebook->cur_page-> | |
74 | allocation.width - | |
75 | x; | |
76 | child_allocation.x = anchor; | |
77 | } | |
78 | case GTK_POS_LEFT: | |
79 | case GTK_POS_RIGHT: | |
80 | child_allocation.height = | |
81 | page->requisition.height + x+ | |
82 | tab_extra_space; | |
83 | if (y) | |
84 | priv->x = child_allocation.x; | |
85 | if (priv->operation == DRAG_OPERATION_REORDER | |
86 | && page->pack == notebook->cur_page->pack) | |
87 | if (allocate_at_bottom && y >= anchor | |
88 | && y <= | |
89 | anchor + child_allocation.height / 2) | |
90 | anchor = | |
91 | notebook->cur_page->allocation. | |
92 | height | |
93 | - | |
94 | x; | |
95 | } | |
96 | if ((page == priv->detached_tab | |
97 | && priv->operation == DRAG_OPERATION_DETACH) | |
98 | || (page == notebook->cur_page | |
99 | && priv->operation == DRAG_OPERATION_REORDER)) | |
100 | page->allocation.x = 0; | |
101 | if (page == notebook->cur_page) | |
102 | switch (x) { | |
103 | case GTK_POS_TOP: | |
104 | page->allocation.y = 0; | |
105 | case GTK_POS_BOTTOM: | |
106 | case GTK_POS_RIGHT: | |
107 | case GTK_POS_LEFT: | |
108 | page->allocation.x = 0; | |
109 | } | |
110 | switch (x) { | |
111 | case GTK_POS_TOP: | |
112 | case GTK_POS_BOTTOM: | |
113 | if (priv->operation != DRAG_OPERATION_REORDER | |
114 | || priv->operation == DRAG_OPERATION_REORDER | |
115 | && page != notebook->cur_page) | |
116 | if (allocate_at_bottom) | |
117 | anchor = | |
118 | child_allocation.width | |
119 | ; | |
120 | case GTK_POS_LEFT: | |
121 | case GTK_POS_RIGHT: | |
122 | if (priv->operation != DRAG_OPERATION_REORDER | |
123 | || priv->operation == DRAG_OPERATION_REORDER | |
124 | && page != notebook->cur_page) | |
125 | if (priv->operation == DRAG_OPERATION_REORDER) | |
126 | if (page->pack == | |
127 | notebook->cur_page->pack | |
128 | && allocate_at_bottom | |
129 | && y >= | |
130 | anchor | |
131 | + child_allocation.height | |
132 | / 2 | |
133 | && y <= | |
134 | anchor + child_allocation.height) | |
135 | anchor = | |
136 | notebook->cur_page-> | |
137 | allocation.height ; | |
138 | } | |
139 | if (page->tab_label) | |
140 | IA__gtk_widget_set_child_visible(page->tab_label, 1); | |
141 | } | |
142 | } |