1 /*************************************************************************/
2 /* grid_container.cpp */
3 /*************************************************************************/
4 /* This file is part of: */
5 /* GODOT ENGINE */
6 /* https://godotengine.org */
7 /*************************************************************************/
8 /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
9 /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
10 /* */
11 /* Permission is hereby granted, free of charge, to any person obtaining */
12 /* a copy of this software and associated documentation files (the */
13 /* "Software"), to deal in the Software without restriction, including */
14 /* without limitation the rights to use, copy, modify, merge, publish, */
15 /* distribute, sublicense, and/or sell copies of the Software, and to */
16 /* permit persons to whom the Software is furnished to do so, subject to */
17 /* the following conditions: */
18 /* */
19 /* The above copyright notice and this permission notice shall be */
20 /* included in all copies or substantial portions of the Software. */
21 /* */
22 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
25 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26 /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29 /*************************************************************************/
30 #include "grid_container.h"
31
_notification(int p_what)32 void GridContainer::_notification(int p_what) {
33
34 switch (p_what) {
35
36 case NOTIFICATION_SORT_CHILDREN: {
37
38 Map<int, int> col_minw;
39 Map<int, int> row_minh;
40 Set<int> col_expanded;
41 Set<int> row_expanded;
42
43 int hsep = get_constant("hseparation");
44 int vsep = get_constant("vseparation");
45
46 int idx = 0;
47 int max_row = 0;
48 int max_col = 0;
49
50 Size2 size = get_size();
51
52 for (int i = 0; i < get_child_count(); i++) {
53
54 Control *c = get_child(i)->cast_to<Control>();
55 if (!c || !c->is_visible())
56 continue;
57
58 int row = idx / columns;
59 int col = idx % columns;
60
61 Size2i ms = c->get_combined_minimum_size();
62 if (col_minw.has(col))
63 col_minw[col] = MAX(col_minw[col], ms.width);
64 else
65 col_minw[col] = ms.width;
66
67 if (row_minh.has(row))
68 row_minh[row] = MAX(row_minh[row], ms.height);
69 else
70 row_minh[row] = ms.height;
71
72 // print_line("store row "+itos(row)+" mw "+itos(ms.height));
73
74 if (c->get_h_size_flags() & SIZE_EXPAND)
75 col_expanded.insert(col);
76 if (c->get_v_size_flags() & SIZE_EXPAND)
77 row_expanded.insert(row);
78
79 max_col = MAX(col, max_col);
80 max_row = MAX(row, max_row);
81 idx++;
82 }
83
84 Size2 ms;
85 int expand_rows = 0;
86 int expand_cols = 0;
87
88 for (Map<int, int>::Element *E = col_minw.front(); E; E = E->next()) {
89 ms.width += E->get();
90 if (col_expanded.has(E->key()))
91 expand_cols++;
92 }
93
94 for (Map<int, int>::Element *E = row_minh.front(); E; E = E->next()) {
95 ms.height += E->get();
96 if (row_expanded.has(E->key()))
97 expand_rows++;
98 }
99
100 ms.height += vsep * max_row;
101 ms.width += hsep * max_col;
102
103 int row_expand = expand_rows ? (size.y - ms.y) / expand_rows : 0;
104 int col_expand = expand_cols ? (size.x - ms.x) / expand_cols : 0;
105
106 int col_ofs = 0;
107 int row_ofs = 0;
108 idx = 0;
109
110 for (int i = 0; i < get_child_count(); i++) {
111
112 Control *c = get_child(i)->cast_to<Control>();
113 if (!c || !c->is_visible())
114 continue;
115 int row = idx / columns;
116 int col = idx % columns;
117
118 if (col == 0) {
119 col_ofs = 0;
120 if (row > 0 && row_minh.has(row - 1))
121 row_ofs += row_minh[row - 1] + vsep + (row_expanded.has(row - 1) ? row_expand : 0);
122 }
123
124 Size2 s;
125 if (col_minw.has(col))
126 s.width = col_minw[col];
127 if (row_minh.has(row))
128 s.height = row_minh[row];
129
130 if (row_expanded.has(row))
131 s.height += row_expand;
132 if (col_expanded.has(col))
133 s.width += col_expand;
134
135 Point2 p(col_ofs, row_ofs);
136
137 // print_line("col: "+itos(col)+" row: "+itos(row)+" col_ofs: "+itos(col_ofs)+" row_ofs: "+itos(row_ofs));
138 fit_child_in_rect(c, Rect2(p, s));
139 //print_line("col: "+itos(col)+" row: "+itos(row)+" rect: "+Rect2(p,s));
140
141 if (col_minw.has(col)) {
142 col_ofs += col_minw[col] + hsep + (col_expanded.has(col) ? col_expand : 0);
143 }
144
145 idx++;
146 }
147
148 } break;
149 }
150 }
151
set_columns(int p_columns)152 void GridContainer::set_columns(int p_columns) {
153
154 ERR_FAIL_COND(p_columns < 1);
155 columns = p_columns;
156 queue_sort();
157 minimum_size_changed();
158 }
159
get_columns() const160 int GridContainer::get_columns() const {
161
162 return columns;
163 }
164
_bind_methods()165 void GridContainer::_bind_methods() {
166
167 ObjectTypeDB::bind_method(_MD("set_columns", "columns"), &GridContainer::set_columns);
168 ObjectTypeDB::bind_method(_MD("get_columns"), &GridContainer::get_columns);
169
170 ADD_PROPERTY(PropertyInfo(Variant::INT, "columns", PROPERTY_HINT_RANGE, "1,1024,1"), _SCS("set_columns"), _SCS("get_columns"));
171 }
172
get_minimum_size() const173 Size2 GridContainer::get_minimum_size() const {
174
175 Map<int, int> col_minw;
176 Map<int, int> row_minh;
177
178 int hsep = get_constant("hseparation");
179 int vsep = get_constant("vseparation");
180
181 int idx = 0;
182 int max_row = 0;
183 int max_col = 0;
184
185 for (int i = 0; i < get_child_count(); i++) {
186
187 Control *c = get_child(i)->cast_to<Control>();
188 if (!c || !c->is_visible())
189 continue;
190 int row = idx / columns;
191 int col = idx % columns;
192 Size2i ms = c->get_combined_minimum_size();
193 if (col_minw.has(col))
194 col_minw[col] = MAX(col_minw[col], ms.width);
195 else
196 col_minw[col] = ms.width;
197
198 if (row_minh.has(row))
199 row_minh[row] = MAX(row_minh[row], ms.height);
200 else
201 row_minh[row] = ms.height;
202 max_col = MAX(col, max_col);
203 max_row = MAX(row, max_row);
204 idx++;
205 }
206
207 Size2 ms;
208
209 for (Map<int, int>::Element *E = col_minw.front(); E; E = E->next()) {
210 ms.width += E->get();
211 }
212
213 for (Map<int, int>::Element *E = row_minh.front(); E; E = E->next()) {
214 ms.height += E->get();
215 }
216
217 ms.height += vsep * max_row;
218 ms.width += hsep * max_col;
219
220 return ms;
221 }
222
GridContainer()223 GridContainer::GridContainer() {
224
225 set_stop_mouse(false);
226 columns = 1;
227 }
228