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/*
BasicWriter
Copyright (C) 2014 Benjamin Paaßen, Andreas Stöckel
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "GridTree.hpp"
#include <iostream>
namespace uigrid {
Splitter getSplitter(Orientation orientation, const Rect &r)
{
switch (orientation) {
case Orientation::vert:
return Splitter(this, Rect(r.x1, r.y2 - ss, r.x2, r.y2),
orientation);
case Orientation::horz:
return Splitter(this, Rect(r.x1, r.y1, r.x2 - ss, r.y2 - ss),
orientation);
default:
return Rect(0, 0, 0, 0);
}
}
void GridTreeNode::gatherBoundingBoxes(std::vector<FrameArea> *areas,
std::vector<Splitter> *splitters, const Rect &r,
int splitterSize)
{
const int ss = splitterSize;
const int h = r.h();
const int w = r.w();
// If this node is a leaf, store the area of the frame and the splitter
// positions in the given lists and abort.
if (isLeaf()) {
if (areas) {
areas->push_back(FrameArea(this, r));
}
if (splitters) {
splitters->push_back(getSplitter(Orientation::vert, r));
splitters->push_back(getSplitter(Orientation::horz, r));
}
return;
}
// Recursively descend into the child nodes. Calculate the area the
// child nodes occupy. The last child should always occupy all remaining
// space in order to avoid gaps caused by rounding errors.
unsigned int i = 0;
switch (orientation) {
case Orientation::vert: {
int offsY = r.y1;
for (auto it = children.begin(); it != children.end();
it++, i++) {
const int ch = (i == children.size() - 1)
? r.y2 - offsY : h * (*it)->relativeSize;
(*it)->gatherBoundingBoxes(areas, splitters,
Rect::bounds(r.x1, offsY, w, ch), splitterSize);
offsY += ch;
}
}
break;
case Orientation::horz: {
int offsX = r.x1;
for (auto it = children.begin(); it != children.end();
it++, i++) {
const int cw = (i == children.size() - 1)
? r.x2 - offsX : w * (*it)->relativeSize;
(*it)->gatherBoundingBoxes(areas, splitters,
Rect::bounds(offsX, r.y1, cw, h), splitterSize);
offsX += cw;
}
}
break;
case Orientation::none:
break;
}
}
}
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