/*
Part of the G4P library for Processing
http://www.lagers.org.uk/g4p/index.html
http://sourceforge.net/projects/g4p/files/?source=navbar
Copyright (c) 2012 Peter Lager
This library 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; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
*/
package automenta.vivisect.gui;
import processing.core.PApplet;
import processing.core.PImage;
/**
* Base class for controls with text and/or icon.<br>
*
* This class forms the basis for any control that has text and/or an icon. <br>
* Use the setIcon, setIconAlign, setText and setTextAlign to control
* horizontal and vertical alignment of the icon and text within the control face.
*
* @author Peter Lager
*
*/
public abstract class GTextIconAlignBase extends GTextAlign {
protected PImage[] bicon = null;
protected int iconW = 0, iconH = 0;
protected GAlign iconAlignH = GAlign.RIGHT, iconAlignV = GAlign.MIDDLE;
protected int siX, siY;
public GTextIconAlignBase(PApplet theApplet, float p0, float p1, float p2, float p3) {
super(theApplet, p0, p1, p2, p3);
}
/**
* Set the text to be displayed and calculate the wrap length taking into
* account any icon set.
*
* @param text
*/
public void setText(String text){
if(text == null || text.length() == 0 )
text = " ";
if(iconW == 0)
stext = new StyledString(text, (int) width - TPAD4);
else
stext = new StyledString(text, (int) width - iconW - TPAD8);
bufferInvalid = true;
}
/**
* Set the icon to be used and the horizontal and/or vertical icon alignment.
* Use the constants in GAlign e.g. <pre>GAlign.LEFT</pre> <br>
*
* @param fname the filename of the icon
* @param nbrImages number of tiled images in the icon
* @param horz LEFT or RIGHT
* @param vert TOP, MIDDLE, BOTTOM
*/
public void setIcon(String fname, int nbrImages, GAlign horz, GAlign vert){
PImage iconImage = ImageManager.loadImage(winApp, fname);
setIcon(iconImage, nbrImages, horz, vert);
}
/**
* Set the icon to be used and the horizontal and/or vertical icon alignment.
* Use the constants in GAlign e.g. <pre>GAlign.LEFT</pre> <br>
*
* If you want to set just one of these then pass null in the other
*
* @param icon the icon
* @param nbrImages number of tiled images in the icon
* @param horz LEFT or RIGHT
* @param vert TOP, MIDDLE, BOTTOM
*/
public void setIcon(PImage icon, int nbrImages, GAlign horz, GAlign vert){
if(icon != null){
if(nbrImages == 3)
bicon = ImageManager.makeTiles1D(winApp, icon, nbrImages, 1);
else {
bicon = new PImage[3];
PImage[] temp = ImageManager.makeTiles1D(winApp, icon, nbrImages, 1);
System.arraycopy(temp, 0, bicon, 0, temp.length);
for(int i = temp.length; i < 3; i++){
bicon[i] = bicon[i-1];
}
}
// We have loaded the image so validate alignment
if(horz != null && horz.isHorzAlign() && horz != GAlign.CENTER){
iconAlignH = horz;
}
if(vert != null && vert.isVertAlign()){
iconAlignV = vert;
}
iconW = bicon[0].width;
iconH = bicon[0].height;
stext.setWrapWidth((int) width - iconW - TPAD8);
bufferInvalid = true;
}
}
/**
* Change the alignment of an existing icon.
* @param horz horizontal alignment (see @see GAlign)
* @param vert vertical alignment (see @see GAlign)
*/
public void setIconAlign(GAlign horz, GAlign vert){
if(iconW != 0){
if(horz != null && horz.isHorzAlign() && horz != GAlign.CENTER){
iconAlignH = horz;
}
if(vert != null && vert != null && vert.isVertAlign()){
iconAlignV = vert;
}
bufferInvalid = true;
}
}
/**
* This will change the controls height without changing the width so that it just
* surrounds the text and icon (if any).
*/
public void setHeightToFit(){
if(stext != null && buffer != null){
stext.getLines(buffer.g2);
int high = Math.round(stext.getTextAreaHeight());
high = Math.max(high, iconH);
int wide = Math.round(width);
resize(wide, high); // resize this control
calcAlignment();
bufferInvalid = true;
}
}
/**
* Calculate various values based on alignment of text and icon
*/
protected void calcAlignment(){
super.calcAlignment(); // calculate the text alignment
if(iconW != 0){
switch(iconAlignH){
case LEFT:
siX = TPAD2;
if(textAlignH != GAlign.RIGHT)
stX += (iconW + TPAD4); // Image on left so adjust text start x position
break;
case RIGHT:
default:
siX = (int)width - iconW - TPAD4;
if(textAlignH == GAlign.RIGHT)
stX -= (iconW + TPAD4);
break;
}
switch(iconAlignV){
case TOP:
siY = TPAD2;
break;
case BOTTOM:
siY = (int) height - iconH - TPAD4;
break;
case MIDDLE:
default:
siY = (int)(height - iconH)/2;
}
}
}
public String toString(){
return tag;
}
}