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Support widget groups #60

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b227668
SwingInputPanel: support input widget groups with collapsible labels
karlduderstadt Aug 3, 2021
d435f5c
SwingInputPanel: simply group visibility logic
karlduderstadt Aug 3, 2021
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SwingInputPanel: support input widget groups with collapsible labels 
Updates the SwingInputPanel to recognize ItemVisibility.GROUP and group
annotations and organize input widgets accordingly with group labels and
the ability to expand or collapse groups. Addresses scijava-common issue
310. Depends on scijava-common additions of GROUP visibility and group
annotations
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@karlduderstadt
karlduderstadt committed Aug 3, 2021
commit b227668fc478acd0596435c98931843a383e9658
118 changes: 113 additions & 5 deletions src/main/java/org/scijava/ui/swing/widget/SwingInputPanel.java
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Original file line number Diff line number Diff line change
Expand Up @@ -29,16 +29,26 @@

package org.scijava.ui.swing.widget;

import java.awt.Component;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.swing.JLabel;
import javax.swing.JPanel;

import net.miginfocom.swing.MigLayout;

import org.scijava.ItemVisibility;
import org.scijava.widget.AbstractInputPanel;
import org.scijava.widget.InputPanel;
import org.scijava.widget.InputWidget;
import org.scijava.widget.WidgetModel;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

/**
* Swing implementation of {@link InputPanel}.
*
Expand All @@ -47,6 +57,9 @@
public class SwingInputPanel extends AbstractInputPanel<JPanel, JPanel> {

private JPanel uiComponent;

private Map<String, List<Component>> widgetGroups;
private Map<String, Boolean> widgetGroupVisible;

// -- InputPanel methods --

Expand All @@ -55,20 +68,115 @@ public void addWidget(final InputWidget<?, JPanel> widget) {
super.addWidget(widget);
final JPanel widgetPane = widget.getComponent();
final WidgetModel model = widget.get();

final String group = (model.getItem().getVisibility() == ItemVisibility.GROUP) ? (String) model.getValue() : model.getGroup();

if (widgetGroups == null)
widgetGroups = new HashMap<String, List<Component>>();

if (widgetGroupVisible == null)
widgetGroupVisible = new HashMap<String, Boolean>();

if (!widgetGroups.containsKey(group))
widgetGroups.put(group, new ArrayList<Component>());

// add widget to panel
if (widget.isLabeled()) {
if (model.getItem().getVisibility() == ItemVisibility.GROUP) {
JPanel labelPanel = new JPanel(new MigLayout("fillx,insets 5 15 5 15, gapy 0"));
JLabel label = (model.getItem().isExpanded()) ? new JLabel("<html><strong>▼ " + group + "</strong></html>") :
new JLabel("<html><strong>▶ " + group + "</strong></html>");

widgetGroupVisible.put(group, model.getItem().isExpanded());

label.addMouseListener(new MouseAdapter() {
/**
* Invoked when the mouse button has been clicked (pressed
* and released) on a component.
* @param e the event to be processed
*/
@Override
public void mouseClicked(MouseEvent e) {
}

/**
* Invoked when a mouse button has been pressed on a component.
* @param e the event to be processed
*/
@Override
public void mousePressed(MouseEvent e) {
if (widgetGroups.get(group).size() == 0)
return;

final boolean visible = label.getText().startsWith("<html><strong>▼");

widgetGroups.get(group).forEach( comp -> {
if (visible)
comp.setVisible(false);
else
comp.setVisible(true);
});

if(visible)
label.setText("<html><strong>▶ " + group + "</strong></html>");
else
label.setText("<html><strong>▼ " + group + "</strong></html>");

getComponent().revalidate();
}

/**
* Invoked when a mouse button has been released on a component.
* @param e the event to be processed
*/
@Override
public void mouseReleased(MouseEvent e) {
}

/**
* Invoked when the mouse enters a component.
* @param e the event to be processed
*/
@Override
public void mouseEntered(MouseEvent e) {
}

/**
* Invoked when the mouse exits a component.
* @param e the event to be processed
*/
@Override
public void mouseExited(MouseEvent e) {
}

});

labelPanel.add(label);
getComponent().add(labelPanel, "align left, wrap");
}
else if (widget.isLabeled()) {
// widget is prefixed by a label
final JLabel l = new JLabel(model.getWidgetLabel());
final String desc = model.getItem().getDescription();
if (desc != null && !desc.isEmpty()) l.setToolTipText(desc);
getComponent().add(l);
getComponent().add(widgetPane);
getComponent().add(l, "hidemode 3");
widgetGroups.get(group).add(l);

getComponent().add(widgetPane, "hidemode 3");
widgetGroups.get(group).add(widgetPane);
}
else {
// widget occupies entire row
getComponent().add(widgetPane, "span");
getComponent().add(widgetPane, "span, hidemode 3");
widgetGroups.get(group).add(widgetPane);
}

//Make sure components have correct starting visibility
if (widgetGroups.containsKey(group) && widgetGroupVisible.containsKey(group))
widgetGroups.get(group).forEach( comp -> {
if (widgetGroupVisible.get(group))
comp.setVisible(true);
else
comp.setVisible(false);
});
}

@Override
Expand Down