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45516216 | 1 | typedef struct { |
2 | int x; | |
3 | int y; | |
4 | int width; | |
5 | int height; | |
6 | } GdkRectangle; | |
7 | enum { | |
8 | GTK_POS_LEFT, GTK_POS_RIGHT, GTK_POS_TOP, GTK_POS_BOTTOM, | |
9 | DRAG_OPERATION_NONE, DRAG_OPERATION_REORDER, DRAG_OPERATION_DETACH | |
10 | }; | |
11 | typedef struct { | |
12 | void *parent; | |
13 | } GtkWidget; | |
14 | typedef struct { | |
15 | GtkWidget *tab_label; | |
16 | int pack; | |
17 | GdkRectangle requisition, allocation; | |
18 | } GtkNotebookPage; | |
19 | typedef struct { | |
20 | GtkNotebookPage *cur_page; | |
21 | int homogeneous:1; | |
22 | } GtkNotebook; | |
23 | typedef struct { | |
24 | int operation; | |
25 | int x; | |
26 | GtkNotebookPage *detached_tab; | |
27 | } GtkNotebookPrivate; | |
28 | gtk_notebook_calculate_tabs_allocation() | |
29 | { | |
30 | GtkNotebook *notebook; | |
31 | void **children; | |
32 | void *last_child; | |
33 | int *remaining_space; | |
34 | int *expanded_tabs; | |
35 | GtkNotebookPrivate *priv; | |
36 | GtkNotebookPage *page; | |
37 | int allocate_at_bottom; | |
38 | int tab_overlap; | |
39 | int tab_pos; | |
40 | int tab_extra_space; | |
41 | int left_x; | |
42 | int right_x; | |
43 | int top_y; | |
44 | int anchor; | |
45 | int xthickness; | |
46 | int ythickness; | |
47 | int gap_left; | |
48 | int packing_changed; | |
49 | GdkRectangle child_allocation; | |
50 | while (*children && *children != last_child) { | |
51 | if (page->tab_label->parent != notebook) | |
52 | continue; | |
53 | if (*expanded_tabs && notebook->homogeneous) | |
54 | tab_extra_space = *remaining_space / *expanded_tabs; | |
55 | switch (tab_pos) { | |
56 | case GTK_POS_TOP: | |
57 | case GTK_POS_BOTTOM: | |
58 | child_allocation.width = | |
59 | page->requisition.width + | |
60 | tab_overlap + | |
61 | tab_extra_space; | |
62 | if (gap_left && packing_changed) { | |
63 | if (allocate_at_bottom | |
64 | && notebook->cur_page->pack | |
65 | && right_x > anchor) | |
66 | anchor = | |
67 | notebook->cur_page->allocation. | |
68 | width; | |
69 | } else { | |
70 | if (allocate_at_bottom) | |
71 | anchor -= child_allocation.width; | |
72 | if (priv->operation == DRAG_OPERATION_REORDER | |
73 | && page->pack == notebook->cur_page->pack) | |
74 | if (!allocate_at_bottom | |
75 | && left_x >= anchor | |
76 | && left_x <= | |
77 | anchor + child_allocation.width / 2) | |
78 | anchor = | |
79 | notebook->cur_page-> | |
80 | allocation.width - | |
81 | tab_overlap; | |
82 | child_allocation.x = anchor; | |
83 | } | |
84 | case GTK_POS_LEFT: | |
85 | case GTK_POS_RIGHT: | |
86 | child_allocation.height = | |
87 | page->requisition.height + tab_overlap + | |
88 | tab_extra_space; | |
89 | if (packing_changed) | |
90 | priv->x = child_allocation.x; | |
91 | if (priv->operation == DRAG_OPERATION_REORDER | |
92 | && page->pack == notebook->cur_page->pack) | |
93 | if (!allocate_at_bottom && top_y >= anchor | |
94 | && top_y <= | |
95 | anchor + child_allocation.height / 2) | |
96 | anchor = | |
97 | notebook->cur_page->allocation. | |
98 | height | |
99 | - | |
100 | tab_overlap; | |
101 | } | |
102 | if ((page == priv->detached_tab | |
103 | && priv->operation == DRAG_OPERATION_DETACH) | |
104 | || (page == notebook->cur_page | |
105 | && priv->operation == DRAG_OPERATION_REORDER)) | |
106 | page->allocation.x = 0; | |
107 | if (page != notebook->cur_page) | |
108 | switch (tab_pos) { | |
109 | case GTK_POS_TOP: | |
110 | page->allocation.y = 0; | |
111 | case GTK_POS_BOTTOM: | |
112 | case GTK_POS_RIGHT: | |
113 | case GTK_POS_LEFT: | |
114 | page->allocation.x = 0; | |
115 | } | |
116 | switch (tab_pos) { | |
117 | case GTK_POS_TOP: | |
118 | case GTK_POS_BOTTOM: | |
119 | if (priv->operation != DRAG_OPERATION_REORDER | |
120 | || priv->operation == DRAG_OPERATION_REORDER | |
121 | && page != notebook->cur_page) | |
122 | if (!allocate_at_bottom) | |
123 | anchor = | |
124 | child_allocation.width | |
125 | ; | |
126 | case GTK_POS_LEFT: | |
127 | case GTK_POS_RIGHT: | |
128 | if (priv->operation != DRAG_OPERATION_REORDER | |
129 | || priv->operation == DRAG_OPERATION_REORDER | |
130 | && page != notebook->cur_page) | |
131 | if (priv->operation == DRAG_OPERATION_REORDER) | |
132 | if (page->pack == | |
133 | notebook->cur_page->pack | |
134 | && !allocate_at_bottom | |
135 | && top_y >= | |
136 | anchor | |
137 | + child_allocation.height | |
138 | / 2 | |
139 | && top_y <= | |
140 | anchor + child_allocation.height) | |
141 | anchor = | |
142 | notebook->cur_page-> | |
143 | allocation.height ; | |
144 | } | |
145 | if (page->tab_label) | |
146 | IA__gtk_widget_set_child_visible(page->tab_label, 1); | |
147 | } | |
148 | } |