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/* Copyright (c) 2007-2014 by panayotis.com
*
* JavaPlot is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 2.
*
* JavaPlot is free 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with CrossMobile; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* and open the template in the editor.
*/
package com.panayotis.gnuplot.layout;
import com.panayotis.gnuplot.plot.Page;
import java.io.Serializable;
/**
* Align graphs evenly on the page, in a grid layout.
*
* If you manually set metrics and use this, these metrics will be lost. Do not
* use this layout, use AutoGraphLayout instead.
*
* @author teras
* @deprecated
*/
public class GridGraphLayout implements GraphLayout, Serializable {
/**
* Where the first graph will be put
*/
public enum Start {
UPLEFT, UPRIGHT, DOWNLEFT, DOWNRIGHT;
}
/**
* Orientation of the graph layout
*/
public static final boolean HORIZONTAL = true, VERTICAL = false;
private Start start;
private boolean orientation;
/**
* Create a new grid layout
*/
public GridGraphLayout() {
start = Start.UPLEFT;
orientation = HORIZONTAL;
}
/**
* Set where the first graph will be put
*
* @param start Position of the first graph
*/
public void setStartPosition(Start start) {
this.start = start;
}
/**
* Sey the orientation of the graphs, as being put
*
* @param orientation Selected orientation
*/
public void setOrientation(boolean orientation) {
this.orientation = orientation;
}
/**
* Update the capacity of this layout. This manager tries to create grid, as
* much square as possible
*
* @param page The page with the elements we would like to position
* @param buffer Where to send commands - not used.
*/
public void setDefinition(Page page, StringBuilder buffer) {
int size = page.size();
if (size <= 0)
return;
int width, height;
height = (int) (Math.floor(Math.sqrt(size)));
width = (int) Math.ceil((double) size / height);
float dx = 1f / width;
float dy = 1f / height;
int col, lin;
for (int index = 0; index < size; index++) {
if (orientation) {
col = index % width;
lin = index / width;
} else {
lin = index % height;
col = index / height;
}
if (start == Start.UPRIGHT || start == Start.DOWNRIGHT)
col = width - col - 1;
if (start == Start.UPLEFT || start == Start.UPRIGHT) // Positioning (0,0) in GNUPlot is in lower left corner
lin = height - lin - 1;
page.get(index).setMetrics(dx * col, dy * lin, dx, dy);
}
}
}