virtualx-engine/scene/gui/grid_container.cpp

235 lines
6.4 KiB
C++

/*************************************************************************/
/* grid_container.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* 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(){
ClassDB::bind_method(_MD("set_columns","columns"),&GridContainer::set_columns);
ClassDB::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_mouse_filter(MOUSE_FILTER_PASS);
columns=1;
}