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

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