plugins/ui-designer/src/com/intellij/uiDesigner/radComponents/RadSwingGridLayoutManager.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.uiDesigner.radComponents;
  18
  19 import com.intellij.uiDesigner.core.GridLayoutManager;
  20 import com.intellij.uiDesigner.core.GridConstraints;
  21 import com.intellij.uiDesigner.snapShooter.SnapshotContext;
  22
  23 import javax.swing.*;
  24 import java.awt.LayoutManager;
  25 import java.awt.GridLayout;
  26 import java.awt.Insets;
  27
  28 /**
  29  * @author yole
  30  */
  31 public class RadSwingGridLayoutManager extends RadGridLayoutManager {
  32   private int myLastRow = 0;
  33   private int myLastColumn = 0;
  34
  35   @Override
  36   public void createSnapshotLayout(final SnapshotContext context,
  37                                    final JComponent parent,
  38                                    final RadContainer container,
  39                                    final LayoutManager layout) {
  40     GridLayout gridLayout = (GridLayout) layout;
  41
  42     int ncomponents = parent.getComponentCount();
  43     int nrows = gridLayout.getRows();
  44     int ncols = gridLayout.getColumns();
  45
  46     if (nrows > 0) {
  47         ncols = (ncomponents + nrows - 1) / nrows;
  48     } else {
  49         nrows = (ncomponents + ncols - 1) / ncols;
  50     }
  51
  52     container.setLayout(new GridLayoutManager(nrows, ncols,
  53                                               new Insets(0, 0, 0, 0),
  54                                               gridLayout.getHgap(), gridLayout.getVgap(),
  55                                               true, true));
  56   }
  57
  58
  59   @Override
  60   public void addSnapshotComponent(final JComponent parent,
  61                                    final JComponent child,
  62                                    final RadContainer container,
  63                                    final RadComponent component) {
  64     GridLayoutManager grid = (GridLayoutManager) container.getLayout();
  65     component.getConstraints().setRow(myLastRow);
  66     component.getConstraints().setColumn(myLastColumn);
  67     component.getConstraints().setFill(GridConstraints.FILL_BOTH);
  68     if (myLastColumn == grid.getColumnCount()-1) {
  69       myLastRow++;
  70       myLastColumn = 0;
  71     }
  72     else {
  73       myLastColumn++;
  74     }
  75     container.addComponent(component);
  76   }
  77 }