diff options
| -rwxr-xr-x | eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/PaletteComposite.java | 323 |
1 files changed, 301 insertions, 22 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/PaletteComposite.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/PaletteComposite.java index 229494c..fd06bda 100755 --- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/PaletteComposite.java +++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/PaletteComposite.java @@ -20,12 +20,27 @@ import com.android.ide.eclipse.adt.internal.editors.descriptors.ElementDescripto import com.android.ide.eclipse.adt.internal.sdk.AndroidTargetData;
import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.CLabel;
+import org.eclipse.swt.dnd.ByteArrayTransfer;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DragSource;
+import org.eclipse.swt.dnd.DragSourceEvent;
+import org.eclipse.swt.dnd.DragSourceListener;
+import org.eclipse.swt.dnd.Transfer;
+import org.eclipse.swt.dnd.TransferData;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackListener;
+import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.ScrollBar;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
import java.util.List;
/**
@@ -79,40 +94,304 @@ public class PaletteComposite extends Composite { c.dispose();
}
- if (targetData != null) {
- GridLayout gl = new GridLayout(1, false);
- gl.horizontalSpacing = 0;
- gl.verticalSpacing = 0;
- gl.marginHeight = 2;
- gl.marginBottom = 2;
- gl.marginLeft = 2;
- gl.marginRight = 2;
- gl.marginTop = 2;
- gl.marginBottom = 2;
- setLayout(gl);
+ setGridLayout(this, 2);
+
+ final Composite parent = new Composite(this, SWT.NONE);
+ setGridLayout(parent, 0);
+ if (targetData != null) {
/* TODO: All this is TEMPORARY. */
Label l = new Label(this, SWT.NONE);
l.setText("*** PLACEHOLDER ***"); //$NON-NLS-1$
l.setToolTipText("Temporary mock for the palette. Needs to scroll, needs no buttons, needs to drag'n'drop."); //$NON-NLS-1$
- addGroup("Layouts", targetData.getLayoutDescriptors().getLayoutDescriptors());
- addGroup("Views", targetData.getLayoutDescriptors().getViewDescriptors());
+ addGroup(parent, "Layouts", targetData.getLayoutDescriptors().getLayoutDescriptors());
+ addGroup(parent, "Views", targetData.getLayoutDescriptors().getViewDescriptors());
}
layout(true);
+
+ final ScrollBar vbar = getVerticalBar();
+ vbar.addListener(SWT.Selection, new Listener() {
+ public void handleEvent(Event event) {
+ Point p = parent.getLocation();
+ p.y = - vbar.getSelection();
+ parent.setLocation(p);
+ }
+ });
+ }
+
+ private void setGridLayout(Composite parent, int spacing) {
+ GridLayout gl = new GridLayout(1, false);
+ gl.horizontalSpacing = 0;
+ gl.verticalSpacing = 0;
+ gl.marginHeight = spacing;
+ gl.marginBottom = spacing;
+ gl.marginLeft = spacing;
+ gl.marginRight = spacing;
+ gl.marginTop = spacing;
+ gl.marginBottom = spacing;
+ parent.setLayout(gl);
}
- private void addGroup(String uiName, List<ElementDescriptor> descriptors) {
- Label label = new Label(this, SWT.NONE);
- label.setText(uiName);
+ private void addGroup(Composite parent,
+ String uiName,
+ List<ElementDescriptor> descriptors) {
+
+ Composite group = new Composite(parent, SWT.NONE);
+ setGridLayout(group, 0);
+
+ Toggle toggle = new Toggle(group, uiName);
+ //label.setText(String.format("-= %s =-", uiName));
+ //label.setToolTipText();
for (ElementDescriptor desc : descriptors) {
- Button b = new Button(this, SWT.PUSH);
- b.setText(desc.getUiName());
- b.setImage(desc.getIcon());
- b.setToolTipText(desc.getTooltip());
- b.setData(desc);
+ toggle.addItem(new Item(group, desc));
+ }
+ }
+
+ private static class Toggle extends CLabel implements MouseTrackListener, Listener {
+ private boolean mMouseIn;
+ private DragSource mSource;
+ private ArrayList<Item> mItems = new ArrayList<Item>();
+
+ public Toggle(Composite parent, String groupName) {
+ super(parent, SWT.NONE);
+ mMouseIn = false;
+
+ String s = String.format("-= %s =-", groupName);
+ setText(s);
+ setToolTipText(s);
+ //TODO use triangle icon and swap it -- setImage(desc.getIcon());
+ addMouseTrackListener(this);
+ addListener(SWT.Selection, this);
+ }
+
+ public void addItem(Item item) {
+ mItems.add(item);
+ }
+
+ @Override
+ public void dispose() {
+ if (mSource != null) {
+ mSource.dispose();
+ mSource = null;
+ }
+ super.dispose();
+ }
+
+ @Override
+ public int getStyle() {
+ int style = super.getStyle();
+ if (mMouseIn) {
+ style |= SWT.SHADOW_IN;
+ }
+ return style;
+ }
+
+ public void mouseEnter(MouseEvent e) {
+ if (!mMouseIn) {
+ mMouseIn = true;
+ redraw();
+ }
+ }
+
+ public void mouseExit(MouseEvent e) {
+ if (mMouseIn) {
+ mMouseIn = false;
+ redraw();
+ }
+ }
+
+ public void mouseHover(MouseEvent e) {
+ // pass
+ }
+
+ /** Selection event */
+ public void handleEvent(Event event) {
+ for (Item i : mItems) {
+ i.setVisible(!i.isVisible());
+ i.setEnabled(!i.isEnabled());
+ }
+ }
+ }
+
+ private static class Item extends CLabel implements MouseTrackListener {
+
+ private boolean mMouseIn;
+ private DragSource mSource;
+
+ public Item(Composite parent, ElementDescriptor desc) {
+ super(parent, SWT.NONE);
+ mMouseIn = false;
+
+ setText(desc.getUiName());
+ setImage(desc.getIcon());
+ setToolTipText(desc.getTooltip());
+ addMouseTrackListener(this);
+
+ // DND Reference: http://www.eclipse.org/articles/Article-SWT-DND/DND-in-SWT.html
+ mSource = new DragSource(this, DND.DROP_COPY);
+ mSource.setTransfer(new Transfer[] { ElementDescTransfer.getInstance() });
+ mSource.addDragListener(new DescDragSourceListener(desc));
+ }
+
+ @Override
+ public void dispose() {
+ if (mSource != null) {
+ mSource.dispose();
+ mSource = null;
+ }
+ super.dispose();
+ }
+
+ @Override
+ public int getStyle() {
+ int style = super.getStyle();
+ if (mMouseIn) {
+ style |= SWT.SHADOW_IN;
+ }
+ return style;
+ }
+
+ public void mouseEnter(MouseEvent e) {
+ if (!mMouseIn) {
+ mMouseIn = true;
+ redraw();
+ }
+ }
+
+ public void mouseExit(MouseEvent e) {
+ if (mMouseIn) {
+ mMouseIn = false;
+ redraw();
+ }
+ }
+
+ public void mouseHover(MouseEvent e) {
+ // pass
+ }
+ }
+
+ /**
+ * A {@link DragSourceListener} that deals with drag'n'drop of
+ * {@link ElementDescriptor}s.
+ */
+ private static class DescDragSourceListener implements DragSourceListener {
+
+ private final ElementDescriptor mDesc;
+
+ public DescDragSourceListener(ElementDescriptor desc) {
+ mDesc = desc;
+ }
+
+ public void dragStart(DragSourceEvent e) {
+ if (mDesc == null) {
+ e.doit = false;
+ }
+ }
+
+
+ public void dragSetData(DragSourceEvent e) {
+ // Provide the data for the drop when requested by the other side.
+ if (ElementDescTransfer.getInstance().isSupportedType(e.dataType)) {
+ e.data = mDesc;
+ }
+ }
+
+ public void dragFinished(DragSourceEvent e) {
+ // Nothing to do here.
+ }
+ }
+
+ // TODO move out of this scope once we need it on the other side.
+ /**
+ * A d'n'd {@link Transfer} class that can transfer {@link ElementDescriptor}s.
+ * <p/>
+ * The implementation is based on the {@link ByteArrayTransfer} and what we transfer
+ * is actually only the inner XML name of the element, which is unique enough.
+ * <p/>
+ * Drag source provides an {@link ElementDescriptor} object.
+ * Drog receivers get back a {@link String} object representing the
+ * {@link ElementDescriptor#getXmlName()}.
+ * <p/>
+ * Drop receivers can find the corresponding element by using
+ * {@link ElementDescriptor#findChildrenDescriptor(String, boolean)} with the
+ * XML name returned by this transfer operation and their root descriptor.
+ * <p/>
+ * Drop receivers must deal with the fact that this XML name may not exist in their
+ * own {@link ElementDescriptor} hierarchy -- e.g. if the drag came from a different
+ * GLE based on a different SDK platform or using custom widgets. In this case they
+ * must refuse the drop.
+ */
+ public static class ElementDescTransfer extends ByteArrayTransfer {
+
+ // Reference: http://www.eclipse.org/articles/Article-SWT-DND/DND-in-SWT.html
+
+
+ private static final String TYPE_NAME = "android.ADT.element.desc.transfer.1";
+ private static final int TYPE_ID = registerType(TYPE_NAME);
+ private static ElementDescTransfer sInstance = new ElementDescTransfer();
+
+ private ElementDescTransfer() {
+ // pass
+ }
+
+ public static ElementDescTransfer getInstance() {
+ return sInstance;
+ }
+
+ @Override
+ protected int[] getTypeIds() {
+ return new int[] { TYPE_ID };
+ }
+
+ @Override
+ protected String[] getTypeNames() {
+ return new String[] { TYPE_NAME };
+ }
+
+ @Override
+ protected void javaToNative(Object object, TransferData transferData) {
+ if (object == null || !(object instanceof ElementDescriptor[])) {
+ return;
+ }
+
+ if (isSupportedType(transferData)) {
+ StringBuilder sb = new StringBuilder();
+ boolean needSeparator = false;
+ for (ElementDescriptor desc : (ElementDescriptor[]) object) {
+ if (needSeparator) {
+ sb.append(';');
+ }
+ sb.append(desc.getXmlName());
+ needSeparator = true;
+ }
+ try {
+ byte[] buf = sb.toString().getBytes("UTF-8"); //$NON-NLS-1$
+ super.javaToNative(buf, transferData);
+ } catch (UnsupportedEncodingException e) {
+ // unlikely; ignore
+ }
+ }
+ }
+
+ @Override
+ protected Object nativeToJava(TransferData transferData) {
+ if (isSupportedType(transferData)) {
+ byte[] buf = (byte[]) super.nativeToJava(transferData);
+ if (buf != null && buf.length > 0) {
+ try {
+ String s = new String(buf, "UTF-8"); //$NON-NLS-1$
+ String[] names = s.split(";"); //$NON-NLS-1$
+ return names;
+ } catch (UnsupportedEncodingException e) {
+ // unlikely to happen, but still possible
+ }
+ }
+ }
+
+ return null;
}
}
}
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