plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/properties/MograsimNaturePropertyPage.java

   1 package net.mograsim.plugin.nature.properties;
   2
   3 import java.util.Optional;
   4
   5 import org.eclipse.jface.preference.PreferencePage;
   6 import org.eclipse.swt.SWT;
   7 import org.eclipse.swt.layout.GridData;
   8 import org.eclipse.swt.layout.GridLayout;
   9 import org.eclipse.swt.widgets.Combo;
  10 import org.eclipse.swt.widgets.Composite;
  11 import org.eclipse.swt.widgets.Control;
  12 import org.eclipse.swt.widgets.Label;
  13 import org.eclipse.ui.dialogs.PropertyPage;
  14
  15 import net.mograsim.machine.MachineRegistry;
  16 import net.mograsim.plugin.nature.MachineContext;
  17 import net.mograsim.plugin.nature.ProjectMachineContext;
  18
  19 public class MograsimNaturePropertyPage extends PropertyPage
  20 {
  21
  22         private static final String WARNING = "Changing the Mograsim machine can completely break your project. Be careful.";
  23         private static final String MACHINE_LABEL = "Machine ID";
  24         private static final String MACHINE_PROPERTY = "net.mograsim.projectMachineId";
  25         private static final String DEFAULT_MACHINE = "Am2900";
  26
  27         private Combo machineSelect;
  28         private String defaultId;
  29
  30         private MachineContext machineContext;
  31
  32         /**
  33          * Constructor for SamplePropertyPage.
  34          */
  35         public MograsimNaturePropertyPage()
  36         {
  37                 super();
  38         }
  39
  40         private void addFirstSection(Composite parent)
  41         {
  42                 Composite composite = createDefaultComposite(parent);
  43
  44                 // Label for path field
  45                 Label pathLabel = new Label(composite, SWT.NONE);
  46                 pathLabel.setText(WARNING);
  47         }
  48
  49         private void addSeparator(Composite parent)
  50         {
  51                 Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
  52                 GridData gridData = new GridData();
  53                 gridData.horizontalAlignment = GridData.FILL;
  54                 gridData.grabExcessHorizontalSpace = true;
  55                 separator.setLayoutData(gridData);
  56         }
  57
  58         private void addSecondSection(Composite parent)
  59         {
  60                 Composite composite = createDefaultComposite(parent);
  61
  62                 // Label for machine
  63                 Label ownerLabel = new Label(composite, SWT.NONE);
  64                 ownerLabel.setText(MACHINE_LABEL);
  65
  66                 // Machine choice
  67                 machineSelect = new Combo(parent, SWT.BORDER);
  68                 GridData gd = new GridData();
  69                 machineSelect.setLayoutData(gd);
  70
  71                 Optional<String> currentId = machineContext.getMachineId();
  72
  73                 if (currentId.isPresent())
  74                         machineSelect.add(currentId.get());
  75
  76                 for (String machineId : MachineRegistry.getInstalledMachines().keySet())
  77                 {
  78                         if (currentId.isPresent() && currentId.get().equals(machineId))
  79                                 continue;
  80                         machineSelect.add(machineId);
  81                 }
  82
  83                 defaultId = currentId.orElse(DEFAULT_MACHINE);
  84
  85                 machineSelect.select(machineSelect.indexOf(defaultId));
  86         }
  87
  88         /**
  89          * @see PreferencePage#createContents(Composite)
  90          */
  91         protected Control createContents(Composite parent)
  92         {
  93                 machineContext = ProjectMachineContext.getMachineContextOf(getElement());
  94
  95                 Composite composite = new Composite(parent, SWT.NONE);
  96                 GridLayout layout = new GridLayout();
  97                 composite.setLayout(layout);
  98                 GridData data = new GridData(GridData.FILL);
  99                 data.grabExcessHorizontalSpace = true;
 100                 composite.setLayoutData(data);
 101
 102                 addFirstSection(composite);
 103                 addSeparator(composite);
 104                 addSecondSection(composite);
 105                 return composite;
 106         }
 107
 108         private Composite createDefaultComposite(Composite parent)
 109         {
 110                 Composite composite = new Composite(parent, SWT.NULL);
 111                 GridLayout layout = new GridLayout();
 112                 layout.numColumns = 2;
 113                 composite.setLayout(layout);
 114
 115                 GridData data = new GridData();
 116                 data.verticalAlignment = GridData.FILL;
 117                 data.horizontalAlignment = GridData.FILL;
 118                 composite.setLayoutData(data);
 119
 120                 return composite;
 121         }
 122
 123         protected void performDefaults()
 124         {
 125                 super.performDefaults();
 126                 // Populate the owner text field with the default value
 127                 machineSelect.select(machineSelect.indexOf(DEFAULT_MACHINE));
 128         }
 129
 130         public boolean performOk()
 131         {
 132                 int selected = machineSelect.getSelectionIndex();
 133                 String newId = machineSelect.getItem(selected);
 134                 return machineContext.setMachineId(newId);
 135         }
 136
 137 }