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   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.Composite;
  10 import org.eclipse.swt.widgets.Control;
  11 import org.eclipse.swt.widgets.Label;
  12 import org.eclipse.ui.dialogs.PropertyPage;
  13
  14 import net.mograsim.machine.MachineDefinition;
  15 import net.mograsim.machine.MachineRegistry;
  16 import net.mograsim.plugin.nature.MachineContext;
  17 import net.mograsim.plugin.nature.MachineContextSwtTools;
  18 import net.mograsim.plugin.nature.MachineContextSwtTools.MachineCombo;
  19 import net.mograsim.plugin.nature.ProjectMachineContext;
  20
  21 public class MograsimNaturePropertyPage extends PropertyPage
  22 {
  23         // TODO i10n
  24         private static final String WARNING = "Changing the Mograsim machine can completely break your project. Be careful.";
  25         private static final String MACHINE_LABEL = "Machine definition";
  26         private static final String MACHINE_PROPERTY = "net.mograsim.projectMachineId";
  27         private static final String DEFAULT_MACHINE = "Am2900Simple";// TODO don't hardcode that here!
  28
  29         private MachineCombo machineSelect;
  30         private Label machineDescription;
  31         private MachineDefinition defaultMachineDefinition;
  32
  33         private MachineContext machineContext;
  34
  35         /**
  36          * Constructor for SamplePropertyPage.
  37          */
  38         public MograsimNaturePropertyPage()
  39         {
  40                 super();
  41         }
  42
  43         private void addFirstSection(Composite parent)
  44         {
  45                 Composite composite = createDefaultComposite(parent, false);
  46
  47                 // Label for path field
  48                 Label pathLabel = new Label(composite, SWT.NONE);
  49                 pathLabel.setText(WARNING);
  50         }
  51
  52         private void addSeparator(Composite parent)
  53         {
  54                 Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
  55                 GridData gridData = new GridData();
  56                 gridData.horizontalAlignment = GridData.FILL;
  57                 gridData.grabExcessHorizontalSpace = true;
  58                 separator.setLayoutData(gridData);
  59         }
  60
  61         private void addSecondSection(Composite parent)
  62         {
  63                 Composite composite = createDefaultComposite(parent, true);
  64
  65                 // Label for machine
  66                 Label ownerLabel = new Label(composite, SWT.NONE);
  67                 ownerLabel.setText(MACHINE_LABEL);
  68
  69                 // Machine choice
  70                 machineSelect = MachineContextSwtTools.createMachineSelector(composite, SWT.NONE);
  71
  72                 machineDescription = new Label(composite, SWT.NONE);
  73                 machineSelect.addListener(md -> machineDescription.setText(md.getDescription()));
  74                 machineDescription.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
  75
  76                 Optional<MachineDefinition> currentMachineDefinition = machineContext.getMachineDefinition();
  77
  78                 if (currentMachineDefinition.isPresent())
  79                         machineSelect.setSelection(currentMachineDefinition.get());
  80
  81                 defaultMachineDefinition = currentMachineDefinition.orElseGet(() -> MachineRegistry.getMachine(DEFAULT_MACHINE));
  82         }
  83
  84         /**
  85          * @see PreferencePage#createContents(Composite)
  86          */
  87         protected Control createContents(Composite parent)
  88         {
  89                 machineContext = ProjectMachineContext.getMachineContextOf(getElement());
  90
  91                 Composite composite = new Composite(parent, SWT.NONE);
  92                 GridLayout layout = new GridLayout();
  93                 composite.setLayout(layout);
  94                 GridData data = new GridData(GridData.FILL);
  95                 data.grabExcessHorizontalSpace = true;
  96                 composite.setLayoutData(data);
  97
  98                 addFirstSection(composite);
  99                 addSeparator(composite);
 100                 addSecondSection(composite);
 101                 return composite;
 102         }
 103
 104         private Composite createDefaultComposite(Composite parent, boolean grabExcessVerticalSpace)
 105         {
 106                 Composite composite = new Composite(parent, SWT.NULL);
 107                 GridLayout layout = new GridLayout();
 108                 layout.numColumns = 2;
 109                 composite.setLayout(layout);
 110
 111                 GridData data = new GridData();
 112                 data.verticalAlignment = GridData.FILL;
 113                 data.horizontalAlignment = GridData.FILL;
 114                 data.grabExcessHorizontalSpace = true;
 115                 data.grabExcessVerticalSpace = grabExcessVerticalSpace;
 116                 composite.setLayoutData(data);
 117
 118                 return composite;
 119         }
 120
 121         protected void performDefaults()
 122         {
 123                 super.performDefaults();
 124                 // Populate the owner text field with the default value
 125                 machineSelect.setSelection(defaultMachineDefinition);
 126         }
 127
 128         public boolean performOk()
 129         {
 130                 return machineContext.setMachineId(machineSelect.getSelection().getId());
 131         }
 132
 133 }