Merge commit '42b2e5ca519766e37ce6941ba4faecc9691cc403' into upstream

[debian/openrocket] / android-libraries / TreeViewList / src / pl / polidea / treeview / TreeViewList.java

diff --git a/android-libraries/TreeViewList/src/pl/polidea/treeview/TreeViewList.java b/android-libraries/TreeViewList/src/pl/polidea/treeview/TreeViewList.java
new file mode 100644 (file)
index 0000000..fb48ab5
--- /dev/null
+++ b/android-libraries/TreeViewList/src/pl/polidea/treeview/TreeViewList.java
@@ -0,0 +1,198 @@
+package pl.polidea.treeview;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ListAdapter;
+import android.widget.ListView;
+
+/**
+ * Tree view, expandable multi-level.
+ * 
+ * <pre>
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_collapsible
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_src_expanded
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_src_collapsed
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_indent_width
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_handle_trackball_press
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_indicator_gravity
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_indicator_background
+ * attr ref pl.polidea.treeview.R.styleable#TreeViewList_row_background
+ * </pre>
+ */
+public class TreeViewList extends ListView {
+    private static final int DEFAULT_COLLAPSED_RESOURCE = R.drawable.collapsed;
+    private static final int DEFAULT_EXPANDED_RESOURCE = R.drawable.expanded;
+    private static final int DEFAULT_INDENT = 0;
+    private static final int DEFAULT_GRAVITY = Gravity.LEFT
+            | Gravity.CENTER_VERTICAL;
+    private Drawable expandedDrawable;
+    private Drawable collapsedDrawable;
+    private Drawable rowBackgroundDrawable;
+    private Drawable indicatorBackgroundDrawable;
+    private int indentWidth = 0;
+    private int indicatorGravity = 0;
+    private AbstractTreeViewAdapter< ? > treeAdapter;
+    private boolean collapsible;
+    private boolean handleTrackballPress;
+
+    public TreeViewList(final Context context, final AttributeSet attrs) {
+        this(context, attrs, R.style.treeViewListStyle);
+    }
+
+    public TreeViewList(final Context context) {
+        this(context, null);
+    }
+
+    public TreeViewList(final Context context, final AttributeSet attrs,
+            final int defStyle) {
+        super(context, attrs, defStyle);
+        parseAttributes(context, attrs);
+    }
+
+    private void parseAttributes(final Context context, final AttributeSet attrs) {
+        final TypedArray a = context.obtainStyledAttributes(attrs,
+                R.styleable.TreeViewList);
+        expandedDrawable = a.getDrawable(R.styleable.TreeViewList_src_expanded);
+        if (expandedDrawable == null) {
+            expandedDrawable = context.getResources().getDrawable(
+                    DEFAULT_EXPANDED_RESOURCE);
+        }
+        collapsedDrawable = a
+                .getDrawable(R.styleable.TreeViewList_src_collapsed);
+        if (collapsedDrawable == null) {
+            collapsedDrawable = context.getResources().getDrawable(
+                    DEFAULT_COLLAPSED_RESOURCE);
+        }
+        indentWidth = a.getDimensionPixelSize(
+                R.styleable.TreeViewList_indent_width, DEFAULT_INDENT);
+        indicatorGravity = a.getInteger(
+                R.styleable.TreeViewList_indicator_gravity, DEFAULT_GRAVITY);
+        indicatorBackgroundDrawable = a
+                .getDrawable(R.styleable.TreeViewList_indicator_background);
+        rowBackgroundDrawable = a
+                .getDrawable(R.styleable.TreeViewList_row_background);
+        collapsible = a.getBoolean(R.styleable.TreeViewList_collapsible, true);
+        handleTrackballPress = a.getBoolean(
+                R.styleable.TreeViewList_handle_trackball_press, true);
+    }
+
+    @Override
+    public void setAdapter(final ListAdapter adapter) {
+        if (!(adapter instanceof AbstractTreeViewAdapter)) {
+            throw new TreeConfigurationException(
+                    "The adapter is not of TreeViewAdapter type");
+        }
+        treeAdapter = (AbstractTreeViewAdapter< ? >) adapter;
+        syncAdapter();
+        super.setAdapter(treeAdapter);
+    }
+
+    private void syncAdapter() {
+        treeAdapter.setCollapsedDrawable(collapsedDrawable);
+        treeAdapter.setExpandedDrawable(expandedDrawable);
+        treeAdapter.setIndicatorGravity(indicatorGravity);
+        treeAdapter.setIndentWidth(indentWidth);
+        treeAdapter.setIndicatorBackgroundDrawable(indicatorBackgroundDrawable);
+        treeAdapter.setRowBackgroundDrawable(rowBackgroundDrawable);
+        treeAdapter.setCollapsible(collapsible);
+        if (handleTrackballPress) {
+            setOnItemClickListener(new OnItemClickListener() {
+                @Override
+                public void onItemClick(final AdapterView< ? > parent,
+                        final View view, final int position, final long id) {
+                    treeAdapter.handleItemClick(view, view.getTag());
+                }
+            });
+        } else {
+            setOnClickListener(null);
+        }
+
+    }
+
+    public void setExpandedDrawable(final Drawable expandedDrawable) {
+        this.expandedDrawable = expandedDrawable;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setCollapsedDrawable(final Drawable collapsedDrawable) {
+        this.collapsedDrawable = collapsedDrawable;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setRowBackgroundDrawable(final Drawable rowBackgroundDrawable) {
+        this.rowBackgroundDrawable = rowBackgroundDrawable;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setIndicatorBackgroundDrawable(
+            final Drawable indicatorBackgroundDrawable) {
+        this.indicatorBackgroundDrawable = indicatorBackgroundDrawable;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setIndentWidth(final int indentWidth) {
+        this.indentWidth = indentWidth;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setIndicatorGravity(final int indicatorGravity) {
+        this.indicatorGravity = indicatorGravity;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setCollapsible(final boolean collapsible) {
+        this.collapsible = collapsible;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public void setHandleTrackballPress(final boolean handleTrackballPress) {
+        this.handleTrackballPress = handleTrackballPress;
+        syncAdapter();
+        treeAdapter.refresh();
+    }
+
+    public Drawable getExpandedDrawable() {
+        return expandedDrawable;
+    }
+
+    public Drawable getCollapsedDrawable() {
+        return collapsedDrawable;
+    }
+
+    public Drawable getRowBackgroundDrawable() {
+        return rowBackgroundDrawable;
+    }
+
+    public Drawable getIndicatorBackgroundDrawable() {
+        return indicatorBackgroundDrawable;
+    }
+
+    public int getIndentWidth() {
+        return indentWidth;
+    }
+
+    public int getIndicatorGravity() {
+        return indicatorGravity;
+    }
+
+    public boolean isCollapsible() {
+        return collapsible;
+    }
+
+    public boolean isHandleTrackballPress() {
+        return handleTrackballPress;
+    }
+
+}