TableArrangement.java

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// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2009-2011 Google, All Rights reserved
// Copyright 2011-2012 MIT, All rights reserved
// Released under the Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
 
package com.google.appinventor.components.runtime;
 
import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.DesignerProperty;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.common.PropertyTypeConstants;
import com.google.appinventor.components.common.YaVersion;
import com.google.appinventor.components.runtime.util.ViewUtil;
 
import android.app.Activity;
import android.view.View;
 
@DesignerComponent(version = YaVersion.TABLEARRANGEMENT_COMPONENT_VERSION,
    description = "<p>A formatting element in which to place components " +
    "that should be displayed in tabular form.</p>",
    category = ComponentCategory.LAYOUT)
@SimpleObject
public class TableArrangement extends AndroidViewComponent
    implements Component, ComponentContainer {
  private final Activity context;
 
  // Layout
  private final TableLayout viewLayout;
 
  public TableArrangement(ComponentContainer container) {
    super(container);
    context = container.$context();
 
    viewLayout = new TableLayout(context, 2, 2);
 
    container.$add(this);
  }
 
  @SimpleProperty(userVisible = false)
  public int Columns() {
    return viewLayout.getNumColumns();
  }
 
  @DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_NON_NEGATIVE_INTEGER,
      defaultValue = "2")
  @SimpleProperty(userVisible = false)
  public void Columns(int numColumns) {
    viewLayout.setNumColumns(numColumns);
  }
 
  @SimpleProperty(userVisible = false)
  public int Rows() {
    return viewLayout.getNumRows();
  }
 
  @DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_NON_NEGATIVE_INTEGER,
      defaultValue = "2")
  @SimpleProperty(userVisible = false)
  public void Rows(int numRows) {
    viewLayout.setNumRows(numRows);
  }
 
  // ComponentContainer implementation
 
  @Override
  public Activity $context() {
    return context;
  }
 
  @Override
  public Form $form() {
    return container.$form();
  }
 
  @Override
  public void $add(AndroidViewComponent component) {
    viewLayout.add(component);
  }
 
  @Override
  public void setChildWidth(AndroidViewComponent component, int width) {
 
    System.err.println("TableArrangment.setChildWidth: width = " + width + " component = " + component);
    if (width <= LENGTH_PERCENT_TAG) {
 
      int cWidth = container.$form().Width();
 
      if ((cWidth > LENGTH_PERCENT_TAG) && (cWidth <= 0)) {
        // FILL_PARENT OR LENGTH_PREFERRED
        width = LENGTH_PREFERRED;
      } else {
        System.err.println("%%TableArrangement.setChildWidth(): width = " + width + " parent Width = " + cWidth + " child = " + component);
        width = cWidth * (- (width - LENGTH_PERCENT_TAG)) / 100;
      }
    }
 
    component.setLastWidth(width);
 
    ViewUtil.setChildWidthForTableLayout(component.getView(), width);
  }
 
  @Override
  public void setChildHeight(AndroidViewComponent component, int height) {
    if (height <= LENGTH_PERCENT_TAG) {
      int cHeight = container.$form().Height();
 
      if ((cHeight > LENGTH_PERCENT_TAG) && (cHeight <= 0)) {
        // FILL_PARENT OR LENGTH_PREFERRED
        height = LENGTH_PREFERRED;
      } else {
        height = cHeight * (- (height - LENGTH_PERCENT_TAG)) / 100;
      }
    }
 
    component.setLastHeight(height);
 
    ViewUtil.setChildHeightForTableLayout(component.getView(), height);
 
  }
 
  // AndroidViewComponent implementation
 
  @Override
  public View getView() {
    return viewLayout.getLayoutManager();
  }
}