mirror of
https://github.com/sojamo/controlp5
synced 2024-11-16 11:17:56 +01:00
293 lines
9.0 KiB
Java
293 lines
9.0 KiB
Java
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package main.java.src2.main.java.controlP5.controlP5;
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/**
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* controlP5 is a processing gui library.
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*
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* 2006-2015 by Andreas Schlegel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* @author Andreas Schlegel (http://www.sojamo.de)
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* @modified ##date##
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* @version ##version##
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*
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*/
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import java.util.ArrayList;
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import java.util.List;
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import processing.core.PApplet;
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import processing.core.PFont;
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import processing.core.PGraphics;
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/**
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* A ControlFont is a container for a PFont that can be used to customize the font of a label.
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* (Designing the Font handling gave me a big headache, especially when it comes to calculating the
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* dimensions of a font which are not available at all times but only at certain times. The current
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* status I suppose is a good compromise and works for standard font handling cases. For any special
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* cases it will be difficult to convince me to make any changes.)
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*
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* @example extra/ControlP5controlFont
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*/
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public class ControlFont {
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public static boolean DEBUG = false;
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/**
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* set the RENDER_2X variable to true to double render text, this makes the font look bolder
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* especially in OpenGL mode. use: ControlFont.RENDER_2X = true;
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*/
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public static boolean RENDER_2X;
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/**
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* renders a PFont twice for better and sharper readability
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*/
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public static void sharp( ) {
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RENDER_2X = true;
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}
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/**
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* sets the rendering of a PFont back to normal and single rendering.
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*/
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public static void normal( ) {
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RENDER_2X = false;
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}
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PFont pfont;
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List< String > txt;
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String s = "";
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private int top;
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private int bottom;
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private int center;
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private int height;
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private int width;
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private final int baseline = 0;
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private int _myTextHeight = 1;
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private final int[] offset = new int[ 2 ];
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private int size;
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public ControlFont( PFont theFont ) {
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this( theFont , checkFontSize( theFont ) );
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}
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public ControlFont( PFont theFont , int theFontSize ) {
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this( theFont , theFontSize , theFontSize + 2 );
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}
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public ControlFont( PFont theFont , int theFontSize , int theLineHeight ) {
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pfont = theFont;
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size = theFontSize;
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txt = new ArrayList< String >( );
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}
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static private int checkFontSize( PFont theFont ) {
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try {
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// was: return theFont.getFont().getSize(); but disappeared with p5 2.0b1
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return theFont.getSize( );
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} catch ( NullPointerException e ) {
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System.out.println( "ControlP5: could not find font-size details for font " + theFont.getName( ) + ", use constructor ControlFont(PFont theFont, int theFontSize) to specify the font size." );
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return 10;
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}
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}
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public void init( Label theLabel ) {
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// when the font changes, init is called.
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// width and height should be adjusted to the updated font here,
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// but we need PApplet here to determine the width of the label.
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// unfortunately we dont have access to PApplet here, so a change
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// might result in a 1-frame-flickr but doesnt necessarily need
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// to happen.
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}
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public void setSize( int theSize ) {
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size = theSize;
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}
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public int getSize( ) {
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/* quickfix http://code.google.com/p/controlp5/issues/detail?id=46 first check the pfont
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* size then default back to size */
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return size;
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}
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public int getOffset( int theIndex ) {
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return offset[ theIndex ];
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}
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public int getTextHeight( ) {
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return _myTextHeight;
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}
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public int getWidth( ) {
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return width;
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}
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public int getHeight( ) {
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return height;
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}
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public int getCenter( ) {
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return center;
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}
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public int getTop( ) {
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return top;
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}
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public int getBottom( ) {
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return bottom;
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}
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public int getBaseline( ) {
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return baseline;
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}
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public PFont getFont( ) {
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return pfont;
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}
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public void adjust( PGraphics theGraphics , Label theLabel ) {
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if ( theLabel.isChanged( ) ) {
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theGraphics.textFont( pfont , size );
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// the origin of a PFont Label is top left corner, therefore
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// the following the following measures have to be calculated
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// when a font is changed. we have to do that here since PApplet
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// is required to calculate a font's ascent and descent value.
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// values are calculated based on the baseline (which is 0),
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// therefore center and top are negative values.
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// to order to sync the line height with the height of the font,
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// the value of lineHeightOffset carries this offset value.
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// This becomes necessary when working with multiple lines.
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top = -( int ) theGraphics.textAscent( );
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bottom = ( int ) theGraphics.textDescent( );
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center = -( int ) ( ( -top - bottom ) / 2 );
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height = theLabel.isMultiline( ) ? theLabel.getHeight( ) : ( int ) ( theGraphics.textAscent( ) + theGraphics.textDescent( ) );
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width = theLabel.isMultiline( ) ? theLabel.getWidth( ) : ( int ) theGraphics.textWidth( theLabel.getTextFormatted( ) );
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if ( theLabel.isMultiline( ) ) {
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calculateHeight( theGraphics , theLabel );
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}
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theLabel.setChanged( false );
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}
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}
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private void calculateHeight( PGraphics theGraphics , Label theLabel ) {
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txt.clear( );
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String myString = theLabel.getTextFormatted( );
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String[] paragraphs = myString.split( "\n" );
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// does not recognize linebreaks at the end of theString.
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myString = "";
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for ( String p : paragraphs ) {
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String[] words = p.split( "\\s" );
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for ( String w : words ) {
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if ( theGraphics.textWidth( myString + w ) < width ) {
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myString += w + " ";
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} else {
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txt.add( myString.substring( 0 , PApplet.max( 0 , myString.length( ) - 1 ) ) );
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myString = w + " ";
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}
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}
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txt.add( myString.substring( 0 , myString.length( ) - 1 ) );
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myString = "";
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}
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if ( theLabel.getHeight( ) % theLabel.getLineHeight( ) != 0 ) {
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txt.add( "" );
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}
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_myTextHeight = ( PApplet.round( txt.size( ) * theLabel.getLineHeight( ) ) );
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int maxLineNum = PApplet.round( theLabel.getHeight( ) / theLabel.getLineHeight( ) );
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int offset = ( int ) ( PApplet.max( 0 , txt.size( ) - maxLineNum ) * ( PApplet.abs( theLabel.getOffsetYratio( ) ) ) );
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int lim = PApplet.min( txt.size( ) , maxLineNum );
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s = "";
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for ( int i = 0 ; i < lim ; i++ ) {
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s += txt.get( i + offset ) + "\n";
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}
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}
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public int getOverflow( ) {
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return ( _myTextHeight - height );
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}
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public void draw( ControlP5 c , Label theLabel ) {
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draw( c.pg , theLabel );
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}
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public void draw( PGraphics theGraphics , Label theLabel ) {
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PFont loadedFont = theGraphics.textFont;
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float loadedSize = theGraphics.textSize;
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if ( loadedFont == null ) {
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theGraphics.textSize( loadedSize ); // forces default font
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loadedFont = theGraphics.textFont;
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}
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int loadedAlign = theGraphics.textAlign;
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theGraphics.textFont( pfont , size );
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theGraphics.textAlign( theLabel.textAlign );
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theGraphics.fill( theLabel.getColor( ) );
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if ( theLabel.isMultiline( ) ) {
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theGraphics.fill( theLabel.getColor( ) );
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theGraphics.textLeading( theLabel.getLineHeight( ) );
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theGraphics.text( s , 0 , 0 , theLabel.getWidth( ) , theLabel.getHeight( ) );
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} else {
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theGraphics.translate( 0 , -top + 1 );
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debug( theGraphics , theLabel );
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theGraphics.fill( theLabel.getColor( ) );
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theGraphics.textLeading( theLabel.getLineHeight( ) );
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theGraphics.text( theLabel.getTextFormatted( ) , 0 , 0 );
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if ( RENDER_2X ) {
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theGraphics.text( theLabel.getTextFormatted( ) , 0 , 0 );
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}
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}
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theGraphics.textFont( loadedFont , loadedSize );
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theGraphics.textAlign( loadedAlign );
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}
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private void debug( PGraphics theGraphics , Label theLabel ) {
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if ( DEBUG ) {
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theGraphics.stroke( 0 , 255 , 0 ); // BASELINE
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theGraphics.line( 0 , getBaseline( ) , theGraphics.textWidth( theLabel.getText( ) ) , getBaseline( ) );
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theGraphics.stroke( 0 , 0 , 255 ); // TOP
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theGraphics.line( 0 , getTop( ) , theGraphics.textWidth( theLabel.getText( ) ) , getTop( ) );
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theGraphics.stroke( 255 , 255 , 0 ); // BOTTOM
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theGraphics.line( 0 , getBottom( ) , theGraphics.textWidth( theLabel.getText( ) ) , getBottom( ) );
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theGraphics.stroke( 255 , 0 , 0 ); // CENTER
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theGraphics.line( 0 , getCenter( ) , theGraphics.textWidth( theLabel.getText( ) ) , getCenter( ) );
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theGraphics.stroke( 255 , 128 , 0 ); // CENTER_CAPS
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theGraphics.line( 0 , getTop( ) / 2 , theGraphics.textWidth( theLabel.getText( ) ) , getTop( ) / 2 );
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theGraphics.noStroke( );
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}
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}
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public static int getWidthFor( String theText , Label theLabel , PGraphics theGraphics ) {
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theGraphics.textFont( theLabel.getFont( ).pfont , theLabel.getFont( ).size );
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return ( int ) theGraphics.textWidth( theText );
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}
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}
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// textorize, a Ruby-based font rasterizer command line utility for Mac OS X
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// http://textorize.org/
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