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package org.eclipse.papyrus.uml.diagram.statemachine.custom.preferences;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.papyrus.infra.gmfdiag.common.helper.DiagramHelper;
import org.eclipse.papyrus.uml.diagram.statemachine.preferences.TransitionPreferencePage;
import org.eclipse.papyrus.uml.tools.utils.ICustomAppearence;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
public class CustomTransitionPreferencePage extends TransitionPreferencePage {
/**
* Button: if selected, indicate signals/call events with parameters by means of (...)
*/
Button bIndicateParameters;
/**
* Button: if selected, add a line/break before a non-empty effect
*/
Button bLineBreakBeforeEffector;
/**
* Cut text of opaque bodies after certain length
*/
Text tBodyCutLength;
/**
* initialize the preferences
* @param store the preference store associated with the state machine diagram.
*/
public static void initDefaults(IPreferenceStore store) {
boolean refresh = false;
int cutLength = 1;
if(cutLength != store.getInt(PreferenceConstants.BODY_CUT_LENGTH)) {
store.setValue(PreferenceConstants.BODY_CUT_LENGTH, cutLength);
refresh = true;
}
boolean indicateParams = true;
if(indicateParams != store.getBoolean(PreferenceConstants.INDICATE_PARAMETERS)) {
store.setValue(PreferenceConstants.INDICATE_PARAMETERS, indicateParams);
refresh = true;
}
TransitionPreferencePage.initDefaults(store);
boolean lineBreakBeforeEffect = true;
if(lineBreakBeforeEffect != store.getBoolean(PreferenceConstants.LINEBREAK_BEFORE_EFFECT)) {
store.setValue(PreferenceConstants.LINEBREAK_BEFORE_EFFECT, lineBreakBeforeEffect);
refresh = true;
}
TransitionPreferencePage.initDefaults(store);
if (refresh) {
DiagramHelper.refreshDiagrams();
}
}
/**
* {@inheritDoc}
*/
@Override
protected void createPageContents(Composite parent) {
super.createPageContents(parent);
// adds the label preferences checkboxes
createTransitionPreferencesButtons(parent);
// refreshButtons();
}
/**
* Creates the group and check boxes to choose the kind of display
*
* @param parent
* the parent composite that holds the group
*/
protected void createTransitionPreferencesButtons(Composite parent) {
IPreferenceStore store = getPreferenceStore();
// create group that host the buttons
Group group = new Group(parent, SWT.SHADOW_NONE);
group.setText("Transition Display");
group.setLayout(new FormLayout());
// group.setLayout(new GridLayout(1, false));
FormData data;
bIndicateParameters = createCheckButton(group, "Indicate parameters", ICustomAppearence.DISP_VISIBILITY);
bIndicateParameters.setSelection(store.getBoolean(PreferenceConstants.INDICATE_PARAMETERS));
data = new FormData();
data.left = new FormAttachment(0, 0);
data.top = new FormAttachment(0, 0);
bIndicateParameters.setLayoutData(data);
bLineBreakBeforeEffector = createCheckButton(group, "Line break before effect label", ICustomAppearence.DISP_VISIBILITY);
bLineBreakBeforeEffector.setSelection(store.getBoolean(PreferenceConstants.LINEBREAK_BEFORE_EFFECT));
data = new FormData();
data.left = new FormAttachment(0, 0);
data.top = new FormAttachment(bIndicateParameters, 0);
bLineBreakBeforeEffector.setLayoutData(data);
Composite maxLengthComposite = new Composite(group, SWT.NONE);
maxLengthComposite.setLayout(new GridLayout(2, false));
data = new FormData();
data.left = new FormAttachment(0, 0);
data.top = new FormAttachment(bLineBreakBeforeEffector, 0);
maxLengthComposite.setLayoutData(data);
Label l = new Label(maxLengthComposite, SWT.NONE);
l.setText("Shown number of lines for opaque expressions/behaviors: ");
tBodyCutLength = new Text(maxLengthComposite, SWT.NONE);
tBodyCutLength.setText(store.getInt(PreferenceConstants.BODY_CUT_LENGTH) + ""); // $NON-NLS-1$
final GridData gridData = new GridData();
gridData.widthHint = 50; // minimal width to assure entering larger numbers
tBodyCutLength.setLayoutData(gridData);
}
/**
* {@inheritDoc}
*/
@Override
protected void performDefaults() {
IPreferenceStore store = getPreferenceStore();
initDefaults(store);
bIndicateParameters.setSelection(store.getBoolean(PreferenceConstants.INDICATE_PARAMETERS));
bLineBreakBeforeEffector.setSelection(store.getBoolean(PreferenceConstants.LINEBREAK_BEFORE_EFFECT));
tBodyCutLength.setText("" + store.getInt(PreferenceConstants.BODY_CUT_LENGTH));
super.performDefaults();
}
/**
* {@inheritDoc}
*/
@Override
public boolean performOk() {
storePreferences();
return super.performOk();
}
/**
* Creates a button with the {@link SWT#CHECK} style.
*
* @param parent
* the parent of the button
* @param label
* the label of the button
* @param mask
* the value controlled by the button
* @return the button created
*/
protected Button createCheckButton(Composite parent, String label, int mask) {
Button button = new Button(parent, SWT.CHECK);
button.setText(label);
return button;
}
/**
* Stores the values of the fields contained in this page into the preference store.
*/
protected void storePreferences() {
IPreferenceStore store = getPreferenceStore();
boolean refresh = false;
// checks the stored value and the actual one, so does not refresh diagram if it is not
// needed
boolean lineBreakBeforeEffect = bLineBreakBeforeEffector.getSelection();
if(lineBreakBeforeEffect != store.getBoolean(PreferenceConstants.LINEBREAK_BEFORE_EFFECT)) {
store.setValue(PreferenceConstants.LINEBREAK_BEFORE_EFFECT, lineBreakBeforeEffect);
refresh = true;
}
int cutLength = new Integer(tBodyCutLength.getText().trim());
if(cutLength != store.getInt(PreferenceConstants.BODY_CUT_LENGTH)) {
store.setValue(PreferenceConstants.BODY_CUT_LENGTH, cutLength);
refresh = true;
}
boolean indicateParams = bIndicateParameters.getSelection();
if(indicateParams != store.getBoolean(PreferenceConstants.INDICATE_PARAMETERS)) {
store.setValue(PreferenceConstants.INDICATE_PARAMETERS, indicateParams);
refresh = true;
}
if (refresh) {
DiagramHelper.setNeedsRefresh();
DiagramHelper.refreshDiagrams();
}
}
}
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