bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/style/FontChooser.java

   1 package org.simantics.modeling.ui.actions.style;
   2
   3 import java.awt.BorderLayout;
   4 import java.awt.Color;
   5 import java.awt.Component;
   6 import java.awt.Dimension;
   7 import java.awt.Font;
   8 import java.awt.GraphicsEnvironment;
   9 import java.awt.event.ActionEvent;
  10 import java.awt.event.ActionListener;
  11
  12 import javax.swing.BorderFactory;
  13 import javax.swing.JCheckBox;
  14 import javax.swing.JComboBox;
  15 import javax.swing.JLabel;
  16 import javax.swing.JList;
  17 import javax.swing.JPanel;
  18 import javax.swing.JScrollPane;
  19 import javax.swing.ListCellRenderer;
  20 import javax.swing.ListSelectionModel;
  21 import javax.swing.SwingConstants;
  22 import javax.swing.event.ListSelectionEvent;
  23 import javax.swing.event.ListSelectionListener;
  24
  25 @SuppressWarnings({"rawtypes", "unchecked"})
  26 public class FontChooser extends JPanel {
  27
  28     private static final long serialVersionUID = -53650261362110193L;
  29
  30     private static Font DEFAULT_FONT = new Font("Arial", Font.PLAIN, 16);
  31
  32     private String sampleText;
  33     private JLabel text;
  34
  35     private JList fontList;
  36     private JComboBox sizeComboBox;
  37     private JCheckBox boldCheckBox;
  38     private JCheckBox italicCheckBox;
  39
  40     private String fonts[];
  41
  42     private Font originalFont;
  43     private Font font;
  44
  45     public FontChooser(String sampleText) {
  46         super();
  47
  48         this.sampleText = sampleText;
  49         JPanel textPanel = new JPanel();
  50         text = new JLabel(sampleText, SwingConstants.CENTER);
  51         text.setVerticalAlignment(SwingConstants.CENTER);
  52         this.setLayout(new BorderLayout());
  53         textPanel.setBorder(BorderFactory.createLineBorder(Color.darkGray));
  54         textPanel.add(text);
  55         textPanel.setMinimumSize(new Dimension(100, 100));
  56         textPanel.setPreferredSize(new Dimension(200, 100));
  57         this.add(textPanel,BorderLayout.NORTH);
  58
  59         GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
  60         String[] ff = ge.getAvailableFontFamilyNames();
  61         fonts = new String[ff.length + 1];
  62         fonts[0] = "-- keep current font --";
  63         System.arraycopy(ff, 0, fonts, 1, ff.length);
  64
  65         fontList = new JList(fonts);
  66         fontList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  67         fontList.setLayoutOrientation(JList.VERTICAL);
  68         fontList.setVisibleRowCount(-1);
  69
  70         fontList.addListSelectionListener(new ListSelectionListener() {
  71
  72             @Override
  73             public void valueChanged(ListSelectionEvent e) {
  74                 if (!e.getValueIsAdjusting()) {
  75                     int index = fontList.getSelectedIndex();
  76                     if (index != -1) {
  77                         selectFont(index);
  78                     }
  79                 }
  80             }
  81         });
  82
  83         fontList.setCellRenderer(new FontListRenderer());
  84
  85
  86         JScrollPane listScrollPane = new JScrollPane(fontList);
  87         listScrollPane.setPreferredSize(new Dimension(400, 200));
  88         this.add(listScrollPane, BorderLayout.CENTER);
  89
  90         JPanel controlPanel = new JPanel();
  91         this.add(controlPanel,BorderLayout.SOUTH);
  92
  93         ActionListener listener = new ActionListener() {
  94             @Override
  95             public void actionPerformed(ActionEvent e) {
  96                 selectFont(fontList.getSelectedIndex());
  97             }
  98         };
  99
 100         // FIXME: hack
 101         Integer[] sizes = {4, 6, 7, 8, 9, 10, 11, 12, 14, 18, 20, 22, 24, 36, 40, 48, 56, 64, 72, 144};
 102         sizeComboBox = new JComboBox(sizes);
 103         sizeComboBox.addActionListener(listener);
 104         sizeComboBox.setSelectedIndex(7);
 105         controlPanel.add(new JLabel("Size: "));
 106         controlPanel.add(sizeComboBox);
 107
 108         boldCheckBox = new JCheckBox("Bold");
 109         boldCheckBox.addActionListener(listener);
 110         controlPanel.add(boldCheckBox);
 111
 112         italicCheckBox = new JCheckBox("Italic");
 113         italicCheckBox.addActionListener(listener);
 114         controlPanel.add(italicCheckBox);
 115
 116         fontList.setSelectedIndex(0);
 117     }
 118
 119     private void selectFont(int index) {
 120         if (index < 0)
 121             return;
 122         String name = fonts[index];
 123         Integer size = (Integer)sizeComboBox.getSelectedItem();
 124         int style = Font.PLAIN; // plain == 0
 125         if (boldCheckBox.isSelected())
 126             style = style | Font.BOLD;
 127         if (italicCheckBox.isSelected())
 128             style = style | Font.ITALIC;
 129         Font original = originalFont != null ? originalFont : DEFAULT_FONT;
 130         // Index 0 is reserved for keeping the original font (family)
 131         Font f = index == 0 ? original.deriveFont(style, size) : new Font(name, style, size);
 132         font = !f.equals(original) ? f : null;
 133         text.setText(sampleText);
 134         text.setFont(f);
 135     }
 136
 137     public Font getFont() {
 138         return font;
 139     }
 140
 141     public void setCurrentFont(Font font) {
 142         int index = -1;
 143         for (int i = 0; i < fonts.length; i++) {
 144             if (fonts[i].equals(font.getFamily())) {
 145                 index = i;
 146                 break;
 147             }
 148         }
 149         if (index == -1)
 150             return;
 151         fontList.setSelectedIndex(index);
 152         fontList.scrollRectToVisible(fontList.getCellBounds(index, index));
 153         boldCheckBox.setSelected((font.getStyle() & Font.BOLD) > 0);
 154         italicCheckBox.setSelected((font.getStyle() & Font.ITALIC) > 0);
 155         sizeComboBox.setSelectedItem(font.getSize());
 156         this.originalFont = font;
 157         selectFont(index);
 158     }
 159
 160     public class FontListRenderer extends JLabel implements ListCellRenderer {
 161
 162         private static final long serialVersionUID = 1237633327794383545L;
 163
 164         public FontListRenderer() {
 165             setOpaque(true);
 166             setHorizontalAlignment(LEFT);
 167             setVerticalAlignment(CENTER);
 168         };
 169
 170         @Override
 171         public Component getListCellRendererComponent(JList list, Object value,
 172                 int index, boolean isSelected, boolean cellHasFocus) {
 173             if (isSelected) {
 174                 setBackground(list.getSelectionBackground());
 175                 setForeground(list.getSelectionForeground());
 176             } else {
 177                 setBackground(list.getBackground());
 178                 setForeground(list.getForeground());
 179             }
 180
 181             String text = (String) value;
 182             setText(text);
 183
 184             // Not really that helpful when one can't even read the name of
 185             // some fonts with the sample text. Also keeps the list visually cleaner.
 186             // Thus removed.
 187             //setFont(index > 0 ? new Font(text,Font.PLAIN,16) : DEFAULT_FONT);
 188
 189             return this;
 190         }
 191     }
 192 }