зеркало из https://github.com/mozilla/gecko-dev.git
Cleaned up XMLPageBuilder. I hate the implementation. Probably will
clean it up later. Cleaned up XMLMenuBuilder also. Reduced number of instanceof's by introducing the Control interface. It seems faster. Removed processNode() out of XMLWidgetBuilder to give the child classes some more freedom. I really need to change the implementation to less moronic.
This commit is contained in:
grail%cafebabe.org
Родитель
db625ad65a
Коммит
ca630c9dd5
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@ -55,6 +55,7 @@ import org.xml.sax.SAXParseException;
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import grendel.widgets.MenuCtrl;
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import grendel.widgets.MenuBarCtrl;
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import grendel.widgets.Control;
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/**
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* Build a menu bar from an XML data source. This builder supports:
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@ -147,8 +148,6 @@ public class XMLMenuBuilder extends XMLWidgetBuilder {
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}
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}
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/**
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* Build a menu bar from the data in the tree
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*
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@ -207,15 +206,9 @@ public class XMLMenuBuilder extends XMLWidgetBuilder {
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Element current = (Element)node;
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if (item instanceof JSeparator) {
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parent.add(item);
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} else if (parent instanceof MenuCtrl) {
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((MenuCtrl)parent).addItemByName(current.getAttribute(id_attr),
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(JMenuItem)item);
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System.out.println("adding " + current.getAttribute(id_attr));
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} else if (parent instanceof MenuBarCtrl) {
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((MenuBarCtrl)parent).addItemByName(current.getAttribute(id_attr),
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(JMenuItem)item);
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System.out.println("adding " + current.getAttribute(id_attr));
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} else if (parent instanceof Control) {
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((Control)parent).addItemByName(current.getAttribute(id_attr),
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(JMenuItem)item);
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}
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}
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}
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@ -251,7 +244,7 @@ public class XMLMenuBuilder extends XMLWidgetBuilder {
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UIAction action;
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// which type of menuitem?
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if (type == null || type.equals("")) {
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if (type.equals("")) {
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// no type ? it's a regular menuitem
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comp = buildMenuItem(current);
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} else if (type.equals(separator_attr)) { // separator
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@ -279,15 +272,13 @@ public class XMLMenuBuilder extends XMLWidgetBuilder {
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finishComponent(comp, current);
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// do we add to a button group?
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if (group != null) {
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if (button_group.containsKey(group)) {
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bg = (ButtonGroup)button_group.get(group);
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} else {
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bg = new ButtonGroup();
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button_group.put(group, bg);
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}
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bg.add((JRadioButtonMenuItem)comp);
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if (button_group.containsKey(group)) {
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bg = (ButtonGroup)button_group.get(group);
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} else {
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bg = new ButtonGroup();
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button_group.put(group, bg);
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}
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bg.add((JRadioButtonMenuItem)comp);
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comp.setFont(new Font("Helvetica", Font.PLAIN, 12));
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return comp;
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@ -80,14 +80,14 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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static final String panel_tag = "panel";
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static final String input_tag = "input";
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static final String layout_attr = "layout";
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PageUI component;
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String title;
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String id;
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String attr;
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PageModel model;
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Hashtable group = new Hashtable();
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/**
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* Build a menu builder which operates on XML formatted data
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*
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@ -102,8 +102,8 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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this(attr, id, model, panel);
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setReference(reference);
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}
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/**
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* Build a menu builder which operates on XML formatted data
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*
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@ -117,7 +117,7 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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this(attr, id, model);
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component = panel;
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}
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/**
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* Build a menu builder which operates on XML formatted data
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*
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@ -130,7 +130,7 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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this.id = id;
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this.model = model;
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}
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/**
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* Read the input stream and build a menubar from it
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*
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@ -142,25 +142,25 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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Node node;
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URL linkURL;
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Element current;
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try {
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doc = XmlDocument.createXmlDocument(stream, false);
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current = doc.getDocumentElement();
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tree = new TreeWalker(current);
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node =
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tree.getNextElement("head").getElementsByTagName("link").item(0);
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// set the configuration contained in this node
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setConfiguration((Element)node);
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// skip to the body
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buildFrom(new TreeWalker(tree.getNextElement("body")));
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} catch (Throwable t) {
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t.printStackTrace();
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}
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}
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/**
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* Build a menu bar from the data in the tree
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*
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@ -169,7 +169,7 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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public void buildFrom(TreeWalker tree) {
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Element current ;
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Node node;
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node = tree.getCurrent();
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current = (Element)node;
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@ -186,20 +186,20 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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node = node.getNextSibling();
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}
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}
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boolean conditionMatch(Node node) {
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boolean match = false;
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if (node.getNodeType() == Node.ELEMENT_NODE) {
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Element current = (Element)node;
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String id_str = current.getAttribute(attr);
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// is the id the same as the on we're looking for?
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match = (id_str != null && id_str.equals(id));
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match = id_str.equals(id);
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}
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return match;
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return match;
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}
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/**
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* Process the node, extracting a widget and adding it as necessary.
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*
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@ -209,38 +209,84 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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protected void processNode(Node node, JComponent parent) {
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JComponent item = null;
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Element current;
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if (node == null) return;
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if (node.getNodeType() != Node.ELEMENT_NODE) {
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processNode(node.getNextSibling(), parent);
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return;
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}
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current = (Element)node;
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String tag = current.getTagName();
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if (tag.equals(dialog_tag)) { // dialog tag .. this gets us title
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title = getReferencedLabel(current, "title");
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node = node.getFirstChild().getNextSibling();
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processNode(node, component);
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} else if (tag.equals(panel_tag)) { // panel tag ... meat!
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PageUI panel = new PageUI();
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// first panel
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if (component == null) {
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component = panel;
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}
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component.setLayout(new GridBagLayout());
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panel.setLayout(new GridBagLayout());
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node = node.getFirstChild().getNextSibling();
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processNode(node, component);
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processNode(node, panel);
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} else {
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item = buildComponent(current, parent);
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// move on to the next item
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processNode(node.getNextSibling(), parent);
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}
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}
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private int parseGridConstant(String data) {
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int result = 1;
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try {
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data = data.trim();
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result = Integer.parseInt(data);
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} catch (NumberFormatException nfe) {
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if (data.equals("remainder")) {
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result = GridBagConstraints.REMAINDER;
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} else if (data.equals("relative")) {
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result = GridBagConstraints.RELATIVE;
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}
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} finally {
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return result;
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}
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}
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private int parseFillConstant(String fill) {
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int result = GridBagConstraints.NONE;
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fill = fill.trim();
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if (fill.equals("horizontal")) {
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result = GridBagConstraints.HORIZONTAL;
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} else if (fill.equals("vertical")) {
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result = GridBagConstraints.VERTICAL;
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} else if (fill.equals("both")) {
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result = GridBagConstraints.BOTH;
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}
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return result;
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}
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private float parseWeightConstant(String weight) {
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float result = 0.0f;
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try {
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result = Float.valueOf(weight).floatValue();
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} catch (NumberFormatException nfe) {
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} finally {
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return result;
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}
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}
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/**
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* Build a constraint from the element's details.
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*
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@ -251,112 +297,75 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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GridBagConstraints constraints = new GridBagConstraints();
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CustomInsets inset =
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new CustomInsets(current.getAttribute("insets"));
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float weightx = 0.0f;
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String fill = null;
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String width = null;
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String height = null;
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try {
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String s = current.getAttribute("weightx");
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if (s != null) {
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weightx = Float.valueOf(s).floatValue();
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}
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} catch (NumberFormatException nfe) {}
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constraints.weightx =
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parseWeightConstant(current.getAttribute("weightx"));
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// fill
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fill = current.getAttribute("fill");
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if (fill != null) {
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if (fill.trim().equals("horizontal")) {
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constraints.fill = GridBagConstraints.HORIZONTAL;
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}
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}
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width = current.getAttribute("gridwidth");
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if (width != null) {
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width = width.trim();
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try {
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constraints.gridwidth = Integer.parseInt(width);
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} catch (NumberFormatException nfe) {
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if (width.equals("remainder")) {
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constraints.gridwidth = GridBagConstraints.REMAINDER;
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} else if (width.equals("relative")) {
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constraints.gridwidth = GridBagConstraints.RELATIVE;
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}
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}
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}
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height = current.getAttribute("gridheight");
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if (height != null) {
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height = height.trim();
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try {
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constraints.gridheight = Integer.parseInt(height);
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} catch (NumberFormatException nfe) {
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if (width.equals("remainder")) {
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constraints.gridwidth = GridBagConstraints.REMAINDER;
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} else if (width.equals("relative")) {
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constraints.gridwidth = GridBagConstraints.RELATIVE;
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}
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}
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}
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constraints.fill = parseFillConstant(current.getAttribute("fill"));
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constraints.gridwidth =
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parseGridConstant(current.getAttribute("gridwidth"));
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constraints.gridheight =
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parseGridConstant(current.getAttribute("gridheight"));
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constraints.insets = inset;
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return constraints;
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}
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protected JComponent buildComponent(Element current) {
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JComponent item = null;
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String tag = current.getTagName();
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if (tag.equals("input")) { // input tag
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item = buildInput(current);
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} else if (tag.equals("label")) {
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item = buildLabel(current);
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}
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return item;
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}
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protected JPasswordField buildPasswordField(Element current) {
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JPasswordField item = null;
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item = new JPasswordField();
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textFieldAdjustments(item, current);
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return item;
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}
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private void textFieldAdjustments(JTextField item, Element current) {
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if (current.getAttribute("columns") != null) {
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String s = current.getAttribute("columns");
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s = s.trim();
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try {
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int column = Integer.parseInt(s);
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item.setColumns(column);
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} catch (NumberFormatException nfe) {
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}
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String s = current.getAttribute("columns");
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s = s.trim();
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try {
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int column = Integer.parseInt(s);
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item.setColumns(column);
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} catch (NumberFormatException nfe) {
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}
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}
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protected JTextField buildTextField(Element current) {
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JTextField item = null;
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item = new JTextField();
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textFieldAdjustments(item, current);
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return item;
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}
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protected JRadioButton buildRadioButton(Element current) {
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JRadioButton item = null;
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String label = getReferencedLabel(current, "title");
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String group_str = current.getAttribute("group");
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// the label
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item = new JRadioButton();
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if (label != null) {
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item.setText(label);
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}
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// button group matters
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if (group_str != null) {
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ButtonGroup bg = null;
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@ -371,11 +380,11 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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return item;
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}
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protected JComponent buildInput(Element current) {
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JComponent item = null;
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String type = current.getAttribute("type");
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String ID = current.getAttribute("ID");
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if (type.equals("radio")) { // radio type
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item = buildRadioButton(current);
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@ -393,21 +402,21 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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return item;
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}
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protected JCheckBox buildCheckBox(Element current) {
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return new JCheckBox(getReferencedLabel(current, "title"));
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}
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protected JButton buildButton(Element current) {
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JButton button = new JButton(getReferencedLabel(current, "title"));
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button.addActionListener(model);
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button.setActionCommand(getReferencedLabel(current, "command"));
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return button;
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}
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protected JList buildList(Element current) {
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JList list = new JList();
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return list;
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}
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|
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@ -415,14 +424,14 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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JLabel label = new JLabel(getReferencedLabel(current, "title"));
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return label;
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}
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|
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|
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public JPanel getComponent() {
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return component;
|
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}
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protected JComponent buildComponent(Element current, JComponent parent) {
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JComponent item = buildComponent(current);
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// item could be null if we don't know about the "type" tag for
|
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// example
|
||||
if (item != null) {
|
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|
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@ -431,31 +440,21 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
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cons = buildConstraints(current);
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}
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||||
|
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if (cons == null) { // no constraints
|
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if (parent instanceof PageUI) {
|
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((PageUI)parent).addCtrl(current.getAttribute("ID"), item);
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}
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else {
|
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parent.add(item);
|
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}
|
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} else { // we have constraints
|
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if (parent instanceof PageUI) {
|
||||
((PageUI)parent).addCtrl(current.getAttribute("ID"),
|
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item, cons);
|
||||
}
|
||||
else {
|
||||
parent.add(item, cons);
|
||||
}
|
||||
if (parent instanceof PageUI) {
|
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((PageUI)parent).addCtrl(current.getAttribute("ID"), item, cons);
|
||||
}
|
||||
else {
|
||||
parent.add(item, cons);
|
||||
}
|
||||
}
|
||||
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||||
return item;
|
||||
}
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||||
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||||
|
||||
public String getTitle() {
|
||||
return title;
|
||||
}
|
||||
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||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
javax.swing.JFrame frame = new javax.swing.JFrame("Foo bar");
|
||||
PageModel model = new PageModel();
|
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|
|
@ -464,49 +463,51 @@ public class XMLPageBuilder extends XMLWidgetBuilder {
|
|||
builder.buildFrom(url.openStream());
|
||||
JPanel panel = builder.getComponent();
|
||||
JDialog dialog = new JDialog();
|
||||
|
||||
dialog.getContentPane().add(panel);
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||||
|
||||
dialog.getContentPane().setLayout(new java.awt.GridBagLayout());
|
||||
dialog.getContentPane().add(panel, null);
|
||||
dialog.setTitle(builder.getTitle());
|
||||
dialog.pack();
|
||||
dialog.setVisible(true);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
class CustomInsets extends Insets {
|
||||
CustomInsets(String inset) {
|
||||
super(0, 0, 0, 0);
|
||||
|
||||
inset = inset.trim();
|
||||
|
||||
if (inset != null && inset.length() >= 9
|
||||
&& (inset.charAt(0) == '['
|
||||
class CustomInsets extends Insets {
|
||||
CustomInsets(String inset) {
|
||||
super(0, 0, 0, 0);
|
||||
|
||||
inset = inset.trim();
|
||||
|
||||
if (inset != null && inset.length() >= 9
|
||||
&& (inset.charAt(0) == '['
|
||||
|| inset.charAt(inset.length() - 1) == ']')) {
|
||||
inset = inset.substring(1, inset.length() - 1);
|
||||
int[] val = parseInset(inset); // guaranteed to be a length of 4
|
||||
|
||||
top = val[0];
|
||||
inset = inset.substring(1, inset.length() - 1);
|
||||
int[] val = parseInset(inset); // guaranteed to be a length of 4
|
||||
|
||||
top = val[0];
|
||||
left = val[1];
|
||||
bottom = val[2];
|
||||
right = val[3];
|
||||
}
|
||||
}
|
||||
|
||||
private int[] parseInset(String inset) {
|
||||
// if all else fails, it's 0
|
||||
int[] val = { 0, 0, 0, 0 };
|
||||
StringTokenizer tok = new StringTokenizer(inset, ",");
|
||||
|
||||
// assign the values into
|
||||
for (int i = 0; i < val.length; i++) {
|
||||
try {
|
||||
String s = tok.nextToken();
|
||||
val[i] = Integer.parseInt(s);
|
||||
} catch (NoSuchElementException nse) {
|
||||
// ignore. if it's fubared, we use 0 as the value
|
||||
} catch (NumberFormatException nfe) {
|
||||
// ignore. if it's fubared, we use 0 as the value
|
||||
}
|
||||
}
|
||||
return val;
|
||||
}
|
||||
}
|
||||
|
||||
private int[] parseInset(String inset) {
|
||||
// if all else fails, it's 0
|
||||
int[] val = { 0, 0, 0, 0 };
|
||||
StringTokenizer tok = new StringTokenizer(inset, ",");
|
||||
|
||||
// assign the values into
|
||||
for (int i = 0; i < val.length; i++) {
|
||||
try {
|
||||
String s = tok.nextToken();
|
||||
val[i] = Integer.parseInt(s);
|
||||
} catch (NoSuchElementException nse) {
|
||||
// ignore. if it's fubared, we use 0 as the value
|
||||
} catch (NumberFormatException nfe) {
|
||||
// ignore. if it's fubared, we use 0 as the value
|
||||
}
|
||||
}
|
||||
return val;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -47,15 +47,6 @@ public abstract class XMLWidgetBuilder {
|
|||
*/
|
||||
protected Class ref;
|
||||
|
||||
/**
|
||||
* Process the node.
|
||||
*
|
||||
* @param node the node tho be processed
|
||||
* @param component the parent component that the node will be added to
|
||||
* (if applicable)
|
||||
*/
|
||||
protected abstract void processNode(Node node, JComponent component);
|
||||
|
||||
/**
|
||||
* Set the reference point for URL location.
|
||||
*
|
||||
|
|
|
|||
|
|
@ -0,0 +1,31 @@
|
|||
/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public License
|
||||
* Version 1.0 (the "License"); you may not use this file except in
|
||||
* compliance with the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS"
|
||||
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||
* the License for the specific language governing rights and limitations
|
||||
* under the License.
|
||||
*
|
||||
* The Original Code is the Grendel mail/news client.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Giao Nguyen
|
||||
* <grail@cafebabe.org>. Portions created by Giao Nguyen are Copyright
|
||||
* (C) 1999 Giao Nguyen. All Rights Reserved.
|
||||
*
|
||||
*/
|
||||
|
||||
package grendel.widgets;
|
||||
|
||||
import javax.swing.JMenuItem;
|
||||
|
||||
/**
|
||||
* I haven't figured out a good description for this yet. But it works out
|
||||
* nicely to unify the interactions between the MenuBarCtrl and MenuCtrl.
|
||||
*/
|
||||
public interface Control {
|
||||
public void addItemByName(String name, JMenuItem component);
|
||||
}
|
||||
|
|
@ -32,7 +32,7 @@ import java.util.Enumeration;
|
|||
* This is a menubar with a keyed lookup rather than a flat iteration model
|
||||
* which JMenuBar by default uses.
|
||||
*/
|
||||
public class MenuBarCtrl extends JMenuBar {
|
||||
public class MenuBarCtrl extends JMenuBar implements Control {
|
||||
|
||||
protected Hashtable controls = new Hashtable();
|
||||
protected Hashtable menus = new Hashtable();
|
||||
|
|
@ -71,7 +71,7 @@ public class MenuBarCtrl extends JMenuBar {
|
|||
* @param name the control's name
|
||||
* @param component the control
|
||||
*/
|
||||
public void addItemByName(String name, JMenuItem component) {
|
||||
public void addItemByName(String name, Component component) {
|
||||
controls.put(name, component);
|
||||
add(component);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@ import javax.swing.JMenuItem;
|
|||
import java.util.Hashtable;
|
||||
import java.util.Enumeration;
|
||||
|
||||
public class MenuCtrl extends JMenu {
|
||||
public class MenuCtrl extends JMenu implements Control {
|
||||
protected Hashtable controls = new Hashtable();
|
||||
|
||||
/**
|
||||
|
|
|
|||
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