godot/scene/gui/grid_container.cpp
2017-04-08 00:45:24 +02:00

228 lines
6.6 KiB
C++

/*************************************************************************/
/* grid_container.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "grid_container.h"
void GridContainer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_SORT_CHILDREN: {
Map<int, int> col_minw;
Map<int, int> row_minh;
Set<int> col_expanded;
Set<int> row_expanded;
int hsep = get_constant("hseparation");
int vsep = get_constant("vseparation");
int idx = 0;
int max_row = 0;
int max_col = 0;
Size2 size = get_size();
for (int i = 0; i < get_child_count(); i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c || !c->is_visible())
continue;
int row = idx / columns;
int col = idx % columns;
Size2i ms = c->get_combined_minimum_size();
if (col_minw.has(col))
col_minw[col] = MAX(col_minw[col], ms.width);
else
col_minw[col] = ms.width;
if (row_minh.has(row))
row_minh[row] = MAX(row_minh[row], ms.height);
else
row_minh[row] = ms.height;
// print_line("store row "+itos(row)+" mw "+itos(ms.height));
if (c->get_h_size_flags() & SIZE_EXPAND)
col_expanded.insert(col);
if (c->get_v_size_flags() & SIZE_EXPAND)
row_expanded.insert(row);
max_col = MAX(col, max_col);
max_row = MAX(row, max_row);
idx++;
}
Size2 ms;
int expand_rows = 0;
int expand_cols = 0;
for (Map<int, int>::Element *E = col_minw.front(); E; E = E->next()) {
ms.width += E->get();
if (col_expanded.has(E->key()))
expand_cols++;
}
for (Map<int, int>::Element *E = row_minh.front(); E; E = E->next()) {
ms.height += E->get();
if (row_expanded.has(E->key()))
expand_rows++;
}
ms.height += vsep * max_row;
ms.width += hsep * max_col;
int row_expand = expand_rows ? (size.y - ms.y) / expand_rows : 0;
int col_expand = expand_cols ? (size.x - ms.x) / expand_cols : 0;
int col_ofs = 0;
int row_ofs = 0;
idx = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c || !c->is_visible())
continue;
int row = idx / columns;
int col = idx % columns;
if (col == 0) {
col_ofs = 0;
if (row > 0 && row_minh.has(row - 1))
row_ofs += row_minh[row - 1] + vsep + (row_expanded.has(row - 1) ? row_expand : 0);
}
Size2 s;
if (col_minw.has(col))
s.width = col_minw[col];
if (row_minh.has(row))
s.height = row_minh[row];
if (row_expanded.has(row))
s.height += row_expand;
if (col_expanded.has(col))
s.width += col_expand;
Point2 p(col_ofs, row_ofs);
// print_line("col: "+itos(col)+" row: "+itos(row)+" col_ofs: "+itos(col_ofs)+" row_ofs: "+itos(row_ofs));
fit_child_in_rect(c, Rect2(p, s));
//print_line("col: "+itos(col)+" row: "+itos(row)+" rect: "+Rect2(p,s));
if (col_minw.has(col)) {
col_ofs += col_minw[col] + hsep + (col_expanded.has(col) ? col_expand : 0);
}
idx++;
}
} break;
}
}
void GridContainer::set_columns(int p_columns) {
ERR_FAIL_COND(p_columns < 1);
columns = p_columns;
queue_sort();
minimum_size_changed();
}
int GridContainer::get_columns() const {
return columns;
}
void GridContainer::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_columns", "columns"), &GridContainer::set_columns);
ObjectTypeDB::bind_method(_MD("get_columns"), &GridContainer::get_columns);
ADD_PROPERTY(PropertyInfo(Variant::INT, "columns", PROPERTY_HINT_RANGE, "1,1024,1"), _SCS("set_columns"), _SCS("get_columns"));
}
Size2 GridContainer::get_minimum_size() const {
Map<int, int> col_minw;
Map<int, int> row_minh;
int hsep = get_constant("hseparation");
int vsep = get_constant("vseparation");
int idx = 0;
int max_row = 0;
int max_col = 0;
for (int i = 0; i < get_child_count(); i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c || !c->is_visible())
continue;
int row = idx / columns;
int col = idx % columns;
Size2i ms = c->get_combined_minimum_size();
if (col_minw.has(col))
col_minw[col] = MAX(col_minw[col], ms.width);
else
col_minw[col] = ms.width;
if (row_minh.has(row))
row_minh[row] = MAX(row_minh[row], ms.height);
else
row_minh[row] = ms.height;
max_col = MAX(col, max_col);
max_row = MAX(row, max_row);
idx++;
}
Size2 ms;
for (Map<int, int>::Element *E = col_minw.front(); E; E = E->next()) {
ms.width += E->get();
}
for (Map<int, int>::Element *E = row_minh.front(); E; E = E->next()) {
ms.height += E->get();
}
ms.height += vsep * max_row;
ms.width += hsep * max_col;
return ms;
}
GridContainer::GridContainer() {
set_stop_mouse(false);
columns = 1;
}