background image UI

images/src/META-INF/ImagesPlugin.xml

@@ -40,6 +40,11 @@
             text="Show Chessboard"
             description="Show a chessboard on transparent image parts">
     </action>
+    <action class="org.intellij.images.editor.actions.SetBackgroundImageAction"
+            id="Images.SetBackgroundImageAction"
+            text="Set Background Image">
+      <add-to-group group-id="ProjectViewPopupMenu"/>
+    </action>
     <group id="Images.EditorToolbar">
       <reference id="Images.ToggleTransparencyChessboard"/>
       <action class="org.intellij.images.editor.actions.ToggleGridAction"

images/src/org/intellij/images/editor/actions/SetBackgroundImageAction.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2000-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.intellij.images.editor.actions;
+
+import com.intellij.openapi.actionSystem.ActionPlaces;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.project.DumbAwareAction;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.vfs.VirtualFile;
+import org.intellij.images.fileTypes.ImageFileTypeManager;
+
+/**
+ * @author gregsh
+ */
+public class SetBackgroundImageAction extends DumbAwareAction {
+
+  @Override
+  public void update(AnActionEvent e) {
+    Project project = e.getProject();
+    VirtualFile file = e.getData(CommonDataKeys.VIRTUAL_FILE);
+    boolean image = file != null && ImageFileTypeManager.getInstance().isImage(file);
+    boolean visible = !ActionPlaces.isPopupPlace(e.getPlace()) || image;
+    e.getPresentation().setEnabled(project != null);
+    e.getPresentation().setVisible(visible);
+  }
+
+  @Override
+  public void actionPerformed(AnActionEvent e) {
+    VirtualFile file = e.getData(CommonDataKeys.VIRTUAL_FILE);
+    boolean image = file != null && ImageFileTypeManager.getInstance().isImage(file);
+    SetBackgroundImageDialog dialog = new SetBackgroundImageDialog(e.getProject(), image ? file.getPath() : null);
+    dialog.showAndGet();
+  }
+}

images/src/org/intellij/images/editor/actions/SetBackgroundImageDialog.form

@@ -0,0 +1,209 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="org.intellij.images.editor.actions.SetBackgroundImageDialog">
+  <grid id="cbd77" binding="myRoot" layout-manager="GridLayoutManager" row-count="4" column-count="6" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="10" left="10" bottom="10" right="10"/>
+    <constraints>
+      <xy x="48" y="54" width="652" height="456"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <grid id="4ca83" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="3" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <component id="ac981" class="com.intellij.ui.components.JBRadioButton">
+            <constraints>
+              <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="IDE background"/>
+            </properties>
+          </component>
+          <component id="c72f5" class="com.intellij.ui.components.JBRadioButton" binding="myEditorRb">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Editor background"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+      <grid id="73c41" binding="myPreviewPanel" layout-manager="BorderLayout" hgap="0" vgap="0">
+        <constraints>
+          <grid row="2" column="0" row-span="1" col-span="3" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children/>
+      </grid>
+      <component id="94212" class="com.intellij.ui.ComboboxWithBrowseButton" binding="myPathField" custom-create="true">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="5" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+      </component>
+      <vspacer id="abb42">
+        <constraints>
+          <grid row="2" column="3" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <grid id="1d970" layout-manager="GridLayoutManager" row-count="11" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="2" column="4" row-span="1" col-span="2" vsize-policy="3" hsize-policy="0" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <component id="77b44" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="4" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Top Left"/>
+            </properties>
+          </component>
+          <component id="a8fd9" class="com.intellij.ui.components.JBRadioButton" binding="myScaleRb">
+            <constraints>
+              <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Scale"/>
+            </properties>
+          </component>
+          <component id="1eb66" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="3" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Center"/>
+            </properties>
+          </component>
+          <component id="fc37b" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="2" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Tile"/>
+            </properties>
+          </component>
+          <vspacer id="f690c">
+            <constraints>
+              <grid row="10" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+            </constraints>
+          </vspacer>
+          <component id="961d9" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="7" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Bottom Left"/>
+            </properties>
+          </component>
+          <component id="2830" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="5" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Top Center"/>
+            </properties>
+          </component>
+          <component id="683fb" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="6" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Top Right"/>
+            </properties>
+          </component>
+          <component id="b2175" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="8" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Bottom Center"/>
+            </properties>
+          </component>
+          <component id="f09c6" class="com.intellij.ui.components.JBRadioButton" default-binding="true">
+            <constraints>
+              <grid row="9" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Bottom Right"/>
+            </properties>
+          </component>
+          <component id="ac573" class="com.intellij.ui.components.JBLabel">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Placement:"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+      <component id="fe56c" class="javax.swing.JSlider" binding="myOpacitySlider">
+        <constraints>
+          <grid row="1" column="1" row-span="1" col-span="4" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <paintTicks value="false"/>
+        </properties>
+      </component>
+      <component id="a265f" class="javax.swing.JSpinner" binding="myOpacitySpinner">
+        <constraints>
+          <grid row="1" column="5" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+      </component>
+      <component id="33a0d" class="com.intellij.ui.components.JBLabel">
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <labelFor value="94212"/>
+          <text value="Image:"/>
+        </properties>
+      </component>
+      <component id="11c6f" class="com.intellij.ui.components.JBLabel">
+        <constraints>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <labelFor value="a265f"/>
+          <text value="Opacity:"/>
+        </properties>
+      </component>
+      <hspacer id="909f7">
+        <constraints>
+          <grid row="3" column="2" row-span="1" col-span="4" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+    </children>
+  </grid>
+  <buttonGroups>
+    <group name="myTarget">
+      <member id="ac981"/>
+      <member id="ac981"/>
+      <member id="c72f5"/>
+    </group>
+    <group name="myType">
+      <member id="a8fd9"/>
+      <member id="a8fd9"/>
+      <member id="b2175"/>
+      <member id="fc37b"/>
+      <member id="77b44"/>
+      <member id="f09c6"/>
+      <member id="1eb66"/>
+      <member id="961d9"/>
+      <member id="683fb"/>
+      <member id="2830"/>
+    </group>
+  </buttonGroups>
+</form>

images/src/org/intellij/images/editor/actions/SetBackgroundImageDialog.java

@@ -0,0 +1,362 @@
+/*
+ * Copyright 2000-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.intellij.images.editor.actions;
+
+import com.intellij.application.options.colors.ColorAndFontOptions;
+import com.intellij.application.options.colors.SimpleEditorPreview;
+import com.intellij.ide.util.PropertiesComponent;
+import com.intellij.openapi.components.ServiceManager;
+import com.intellij.openapi.editor.colors.EditorColorsManager;
+import com.intellij.openapi.editor.colors.EditorColorsScheme;
+import com.intellij.openapi.fileChooser.FileChooser;
+import com.intellij.openapi.fileChooser.FileChooserDescriptor;
+import com.intellij.openapi.fileEditor.impl.EditorEmptyTextPainter;
+import com.intellij.openapi.options.colors.ColorSettingsPage;
+import com.intellij.openapi.options.colors.ColorSettingsPages;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.ui.ComboBox;
+import com.intellij.openapi.ui.DialogWrapper;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.openapi.wm.impl.IdeBackgroundUtil;
+import com.intellij.ui.CollectionComboBoxModel;
+import com.intellij.ui.ComboboxWithBrowseButton;
+import com.intellij.ui.DocumentAdapter;
+import com.intellij.ui.components.JBLabel;
+import com.intellij.ui.components.JBRadioButton;
+import com.intellij.util.containers.ContainerUtil;
+import com.intellij.util.ui.JBSwingUtilities;
+import com.intellij.util.ui.update.UiNotifyConnector;
+import org.intellij.images.fileTypes.ImageFileTypeManager;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import javax.swing.*;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+import javax.swing.event.DocumentEvent;
+import javax.swing.text.JTextComponent;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+public class SetBackgroundImageDialog extends DialogWrapper {
+  private final String myPropertyTmp;
+  private JPanel myRoot;
+  private JBRadioButton myEditorRb;
+  private JSlider myOpacitySlider;
+  private JSpinner myOpacitySpinner;
+  private JPanel myPreviewPanel;
+  private ComboboxWithBrowseButton myPathField;
+  private JBRadioButton myScaleRb;
+
+  boolean myAdjusting;
+  private String mySelectedPath;
+  private Map<String, String> myResults = ContainerUtil.newHashMap();
+
+  private final SimpleEditorPreview myEditorPreview;
+  private final JComponent myIdePreview;
+
+  public SetBackgroundImageDialog(@NotNull Project project, @Nullable String selectedPath) {
+    super(project, true);
+    setTitle("Background Image");
+    mySelectedPath = selectedPath;
+    myEditorPreview = createEditorPreview();
+    myIdePreview = createIdePreview();
+    myPropertyTmp = IdeBackgroundUtil.BG_PROPERTY_PREFIX + project.getLocationHash();
+    UiNotifyConnector.doWhenFirstShown(myRoot, new Runnable() {
+      @Override
+      public void run() {
+        IdeBackgroundUtil.createTemporaryBackgroundTransform(myRoot, myPropertyTmp, getDisposable());
+      }
+    });
+    setupComponents();
+    restoreRecentImages();
+    setSelectedPath(mySelectedPath);
+    targetChanged(null);
+    init();
+  }
+
+  private void createUIComponents() {
+    ComboBox<String> comboBox = new ComboBox<>(new CollectionComboBoxModel<String>(), 100);
+    myPathField = new ComboboxWithBrowseButton(comboBox);
+  }
+
+  @Override
+  protected void dispose() {
+    super.dispose();
+    myEditorPreview.disposeUIResources();
+    System.getProperties().remove(myPropertyTmp);
+  }
+
+  @NotNull
+  private static SimpleEditorPreview createEditorPreview() {
+    EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
+    ColorAndFontOptions options = new ColorAndFontOptions();
+    options.reset();
+    options.selectScheme(scheme.getName());
+    ColorSettingsPage[] pages = ColorSettingsPages.getInstance().getRegisteredPages();
+    int round = (int)Math.round(Math.random() * (pages.length - 1));
+    return new SimpleEditorPreview(options, pages[round], false);
+  }
+
+  @NotNull
+  private static JComponent createIdePreview() {
+    return new JBLabel() {
+      EditorEmptyTextPainter p = ServiceManager.getService(EditorEmptyTextPainter.class);
+
+      @Override
+      protected Graphics getComponentGraphics(Graphics g) {
+        return JBSwingUtilities.runGlobalCGTransform(this, super.getComponentGraphics(g));
+      }
+
+      @Override
+      public void paint(Graphics gg) {
+        Graphics g = getComponentGraphics(gg);
+        g.setColor(getBackground());
+        g.fillRect(0, 0, getWidth(), getHeight());
+        g.translate(0, -50);
+        p.paintEmptyText(this, g);
+      }
+    };
+  }
+
+  @Nullable
+  @Override
+  protected String getDimensionServiceKey() {
+    return getClass().getName();
+  }
+
+  @NotNull
+  private String getRecentItemsKey() {
+    return getDimensionServiceKey() + "#recent";
+  }
+
+  @Nullable
+  @Override
+  protected JComponent createCenterPanel() {
+    return myRoot;
+  }
+
+  @Nullable
+  @Override
+  public JComponent getPreferredFocusedComponent() {
+    return myPathField;
+  }
+
+  private void setupComponents() {
+    myAdjusting = true;
+    myPreviewPanel.setLayout(new CardLayout());
+    myPreviewPanel.add(myEditorPreview.getPanel(), "editor");
+    myPreviewPanel.add(myIdePreview, "ide");
+    ((CardLayout)myPreviewPanel.getLayout()).show(myPreviewPanel, "editor");
+    myPathField.getComboBox().setEditable(true);
+    myPathField.getButton().setAction(new AbstractAction() {
+      @Override
+      public void actionPerformed(ActionEvent e) {
+        FileChooserDescriptor descriptor = new FileChooserDescriptor(true, false, false, false, true, false)
+          .withFileFilter(file -> ImageFileTypeManager.getInstance().isImage(file));
+        VirtualFile file = FileChooser.chooseFile(descriptor, myRoot, null, null);
+        if (file != null) {
+          setSelectedPath(file.getPath());
+        }
+      }
+    });
+    JTextComponent textComponent = getComboEditor();
+    textComponent.getDocument().addDocumentListener(new DocumentAdapter() {
+      @Override
+      protected void textChanged(DocumentEvent e) {
+        if (myAdjusting) return;
+        imagePathChanged();
+      }
+    });
+    for (Enumeration<AbstractButton> e = getTargetRbGroup().getElements(); e.hasMoreElements();) {
+      AbstractButton button = e.nextElement();
+      button.setActionCommand(button.getText());
+      button.addActionListener(this::targetChanged);
+    }
+    for (Enumeration<AbstractButton> e = getTypeRbGroup().getElements(); e.hasMoreElements();) {
+      AbstractButton button = e.nextElement();
+      button.setActionCommand(button.getText());
+      button.addActionListener(this::fillTypeChanged);
+    }
+    ChangeListener opacitySync = new ChangeListener() {
+
+      @Override
+      public void stateChanged(ChangeEvent e) {
+        if (myAdjusting) return;
+        myAdjusting = true;
+        boolean b = e.getSource() == myOpacitySpinner;
+        if (b) {
+          int value = (Integer)myOpacitySpinner.getValue();
+          myOpacitySpinner.setValue(Math.min(Math.max(0, value), 100));
+          myOpacitySlider.setValue(value);
+        }
+        else {
+          myOpacitySpinner.setValue(myOpacitySlider.getValue());
+        }
+        myAdjusting = false;
+        opacityChanged();
+      }
+    };
+    myOpacitySpinner.addChangeListener(opacitySync);
+    myOpacitySlider.addChangeListener(opacitySync);
+    myOpacitySlider.setValue(15);
+    myOpacitySpinner.setValue(15);
+    myScaleRb.setSelected(true);
+    myEditorRb.setSelected(true);
+    myAdjusting = false;
+  }
+
+  private void opacityChanged() {
+    updatePreview();
+  }
+
+  private void imagePathChanged() {
+    updatePreview();
+  }
+
+  private void fillTypeChanged(ActionEvent event) {
+    updatePreview();
+  }
+
+  private void targetChanged(ActionEvent event) {
+    if (StringUtil.isEmptyOrSpaces(mySelectedPath)) {
+      retrieveExistingValue();
+    }
+
+    ((CardLayout)myPreviewPanel.getLayout()).show(myPreviewPanel, myEditorRb.isSelected() ? "editor" : "ide");
+    if (myEditorRb.isSelected()) {
+      myEditorPreview.updateView();
+    }
+    updatePreview();
+  }
+
+  public void setSelectedPath(String path) {
+    mySelectedPath = path;
+    if (StringUtil.isEmptyOrSpaces(path)) return;
+    CollectionComboBoxModel<String> comboModel = getComboModel();
+    if (!comboModel.getItems().contains(path)) {
+      comboModel.add(path);
+    }
+    comboModel.setSelectedItem(path);
+    getComboEditor().setCaretPosition(0);
+  }
+
+  private void retrieveExistingValue() {
+    myAdjusting = true;
+    String prop = getSystemProp();
+    String value = StringUtil.notNullize(myResults.get(prop), getProperty(prop));
+    String[] split = value.split(",");
+    setSelectedPath(split[0]);
+    mySelectedPath = null;
+    int opacity = split.length > 1 ? StringUtil.parseInt(split[1], 15) : 15;
+    myOpacitySlider.setValue(opacity);
+    myOpacitySpinner.setValue(opacity);
+    String type = split.length > 2 ? split[2] : "scale";
+    for (Enumeration<AbstractButton> e = getTypeRbGroup().getElements(); e.hasMoreElements(); ) {
+      AbstractButton button = e.nextElement();
+      String s = button.getActionCommand().replace(' ', '_');
+      if (s.equalsIgnoreCase(type)) {
+        button.setSelected(true);
+        break;
+      }
+    }
+    myAdjusting = false;
+  }
+
+  @Override
+  public void doCancelAction() {
+    storeRecentImages();
+    super.doCancelAction();
+  }
+
+  @Override
+  protected void doOKAction() {
+    storeRecentImages();
+    String value = calcNewValue();
+    String prop = getSystemProp();
+    myResults.put(prop, value);
+
+    if (value.startsWith(",")) return;
+    PropertiesComponent.getInstance().setValue(prop, value);
+
+    super.doOKAction();
+  }
+
+  private void storeRecentImages() {
+    List<String> items = getComboModel().getItems();
+    PropertiesComponent.getInstance().setValue(
+      getRecentItemsKey(),
+      StringUtil.join(items.subList(0, Math.min(items.size(), 5)), "\n"));
+  }
+
+  private CollectionComboBoxModel<String> getComboModel() {
+    //noinspection unchecked
+    return (CollectionComboBoxModel<String>)myPathField.getComboBox().getModel();
+  }
+
+  private JTextComponent getComboEditor() {
+    return (JTextComponent)myPathField.getComboBox().getEditor().getEditorComponent();
+  }
+
+  private void restoreRecentImages() {
+    String value = PropertiesComponent.getInstance().getValue(getRecentItemsKey());
+    if (value == null) return;
+    for (String s : value.split("\n")) {
+      //noinspection unchecked
+      getComboModel().add(s);
+    }
+  }
+
+  private static String getProperty(@NotNull String prop) {
+    return StringUtil.notNullize(PropertiesComponent.getInstance().getValue(prop), System.getProperty(prop, ""));
+  }
+
+  @NotNull
+  private String getSystemProp() {
+    return IdeBackgroundUtil.BG_PROPERTY_PREFIX + (myEditorRb.isSelected() ? "editor" : "ide");
+  }
+
+  private void updatePreview() {
+    String prop = getSystemProp();
+    String value = calcNewValue();
+    System.setProperty(myPropertyTmp, value);
+    myResults.put(prop, value);
+    myPreviewPanel.validate();
+    myPreviewPanel.repaint();
+  }
+
+  @NotNull
+  private String calcNewValue() {
+    String path = (String)myPathField.getComboBox().getEditor().getItem();
+    String type = getTypeRbGroup().getSelection().getActionCommand()
+      .replace(' ', '_').toLowerCase(Locale.ENGLISH);
+
+    return path.trim() + "," + myOpacitySpinner.getValue() + "," + type;
+  }
+
+  private ButtonGroup getTypeRbGroup() {
+    return ((DefaultButtonModel)myScaleRb.getModel()).getGroup();
+  }
+
+  private ButtonGroup getTargetRbGroup() {
+    return ((DefaultButtonModel)myEditorRb.getModel()).getGroup();
+  }
+}

platform/platform-impl/src/com/intellij/openapi/wm/impl/IdeBackgroundUtil.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.openapi.wm.impl;
 
+import com.intellij.openapi.Disposable;
 import com.intellij.openapi.actionSystem.ActionToolbar;
 import com.intellij.openapi.actionSystem.CommonDataKeys;
 import com.intellij.openapi.actionSystem.DataProvider;
@@ -26,6 +27,7 @@ import com.intellij.openapi.editor.impl.EditorComponentImpl;
 import com.intellij.openapi.fileEditor.impl.EditorEmptyTextPainter;
 import com.intellij.openapi.fileEditor.impl.EditorsSplitters;
 import com.intellij.openapi.ui.AbstractPainter;
+import com.intellij.openapi.util.Disposer;
 import com.intellij.ui.EditorTextField;
 import com.intellij.ui.Graphics2DDelegate;
 import com.intellij.ui.tabs.JBTabs;
@@ -49,7 +51,7 @@ import java.net.URL;
  */
 public class IdeBackgroundUtil {
 
-  public static final String BG_PROPERTY_PREFIX = "idea.wallpaper.";
+  public static final String BG_PROPERTY_PREFIX = "idea.background.";
 
   static {
     JBSwingUtilities.addGlobalCGTransform(new MyTransform());
@@ -142,6 +144,18 @@ public class IdeBackgroundUtil {
     return UIUtil.isUnderDarcula() ? new Color(40, 40, 41) : UIUtil.getSlightlyDarkerColor(UIUtil.getSlightlyDarkerColor(result));
   }
 
+  public static void createTemporaryBackgroundTransform(JPanel root, String tmp, Disposable disposable) {
+    PaintersHelper paintersHelper = new PaintersHelper(root);
+    PaintersHelper.initWallpaperPainter(tmp, paintersHelper);
+    Disposer.register(disposable, JBSwingUtilities.addGlobalCGTransform(new PairFunction<JComponent, Graphics2D, Graphics2D>() {
+      @Override
+      public Graphics2D fun(JComponent t, Graphics2D v) {
+        if (!UIUtil.isAncestor(root, t)) return v;
+        return MyGraphics.wrap(v, paintersHelper, t);
+      }
+    }));
+  }
+
   private static class MyGraphics extends Graphics2DDelegate {
     final PaintersHelper helper;
     final int[] offsets;

platform/platform-impl/src/com/intellij/openapi/wm/impl/PaintersHelper.java

@@ -15,7 +15,9 @@
  */
 package com.intellij.openapi.wm.impl;
 
+import com.intellij.ide.util.PropertiesComponent;
 import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.openapi.application.ModalityState;
 import com.intellij.openapi.application.PathManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.ui.AbstractPainter;
@@ -157,11 +159,12 @@ final class PaintersHelper implements Painter.Listener {
   }
 
   public static void initWallpaperPainter(@NotNull String propertyName, @NotNull PaintersHelper painters) {
-    ImagePainter painter = (ImagePainter)newWallpaperPainter(propertyName);
+    ModalityState modalityState = ModalityState.stateForComponent(painters.myRootComponent);
+    ImagePainter painter = (ImagePainter)newWallpaperPainter(propertyName, modalityState);
     painters.addPainter(painter, null);
   }
 
-  private static AbstractPainter newWallpaperPainter(@NotNull final String propertyName) {
+  private static AbstractPainter newWallpaperPainter(@NotNull final String propertyName, @NotNull final ModalityState modalityState) {
     return new ImagePainter() {
       Image image;
       float alpha;
@@ -182,7 +185,8 @@ final class PaintersHelper implements Painter.Listener {
       }
 
       boolean ensureImageLoaded() {
-        String value = System.getProperty(propertyName);
+        String value = StringUtil.notNullize(PropertiesComponent.getInstance().getValue(propertyName),
+                                             System.getProperty(propertyName, ""));
         if (!Comparing.equal(value, current)) {
           current = value;
           loadImageAsync(value);
@@ -224,7 +228,7 @@ final class PaintersHelper implements Painter.Listener {
                 public void run() {
                   resetImage(propertyValue, m, newAlpha, newFillType);
                 }
-              });
+              }, modalityState);
             }
           });
         }