platform/platform-impl/src/com/intellij/ui/messages/SheetController.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2014 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 com.intellij.ui.messages;

 import com.intellij.icons.AllIcons;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.ui.DialogWrapper;
 import com.intellij.openapi.ui.Messages;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.ui.Gray;
 import com.intellij.ui.JBColor;
 import com.intellij.util.ArrayUtil;
 import com.intellij.util.ui.UIUtil;
 import org.jdesktop.swingx.graphics.GraphicsUtilities;
 import org.jdesktop.swingx.graphics.ShadowRenderer;

 import javax.swing.*;
 import javax.swing.event.HyperlinkEvent;
 import javax.swing.event.HyperlinkListener;
 import java.awt.*;
 import java.awt.event.*;
 import java.awt.geom.Rectangle2D;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.net.URISyntaxException;

 /**
  * Created by Denis Fokin
  */
 public class SheetController {

   private static final Logger LOG = Logger.getInstance(SheetController.class);
   private static final int SHEET_MINIMUM_HEIGHT = 143;
   private static String fontName = "Lucida Grande";
   private static Font regularFont = new Font(fontName, Font.PLAIN, 10);
   private static Font boldFont = new Font(fontName, Font.BOLD, 12).deriveFont(Font.BOLD);
   private final DialogWrapper.DoNotAskOption myDoNotAskOption;
   private JCheckBox doNotAskCheckBox;
   private boolean myDoNotAskResult;

   private BufferedImage myShadowImage;

   private JButton[] buttons;
   private JButton myDefaultButton;
   private JButton myFocusedButton;

   public static int SHADOW_BORDER = 5;

   private static int RIGHT_OFFSET = 10 - SHADOW_BORDER;
   private static int BOTTOM_SHEET_PADDING = 10;

   private final static int TOP_SHEET_PADDING = 20;
   private final static int GAP_BETWEEN_LINES = 10;

   private final static int LEFT_SHEET_PADDING = 35;
   private final static int LEFT_SHEET_OFFSET = 120;

   private static int GAP_BETWEEN_BUTTONS = 5;

   private static String SPACE_OR_LINE_SEPARATOR_PATTERN = "[\\s" + System.getProperty("line.separator") + "]+";

   // SHEET
   public int SHEET_WIDTH = 400;

   public int SHEET_HEIGHT = 143;

   // SHEET + shadow
   int SHEET_NC_WIDTH = SHEET_WIDTH + SHADOW_BORDER * 2;
   int SHEET_NC_HEIGHT = SHEET_HEIGHT + SHADOW_BORDER ;


   private Icon myIcon = UIUtil.getInformationIcon();

   private String myResult;
   private JPanel mySheetPanel;
   private SheetMessage mySheetMessage;

   private JEditorPane messageTextPane = new JEditorPane();
   private Dimension messageArea = new Dimension(250, Short.MAX_VALUE);

   SheetController(final SheetMessage sheetMessage,
                   final String title,
                   final String message,
                   final Icon icon,
                   final String[] buttonTitles,
                   final String defaultButtonTitle,
                   final DialogWrapper.DoNotAskOption doNotAskOption,
                   final String focusedButton) {
     if (icon != null) {
       myIcon = icon;
     }

     myDoNotAskOption = doNotAskOption;
     myDoNotAskResult = (doNotAskOption != null) && !doNotAskOption.isToBeShown();
     mySheetMessage = sheetMessage;
     buttons = new JButton[buttonTitles.length];

     myResult = null;

     for (int i = 0; i < buttons.length; i++) {
       String buttonTitle = buttonTitles[i];

       buttons[i] = new JButton();
       buttons[i].setOpaque(false);
       handleMnemonics(i, buttonTitle);

       if (buttonTitle.equals(defaultButtonTitle)) {
         myDefaultButton = buttons[i];
       }
       if (buttonTitle.equals(focusedButton)) {
         myFocusedButton = buttons[i];
       }
     }

     if (myFocusedButton == null) {
       myFocusedButton = myDefaultButton;
     }

     if (myResult == null) {
       myResult = Messages.CANCEL_BUTTON;
     }

     mySheetPanel = createSheetPanel(title, message, buttons);

     initShadowImage();
   }

   private void initShadowImage() {

     final BufferedImage mySheetStencil = GraphicsUtilities.createCompatibleTranslucentImage(SHEET_WIDTH, SHEET_HEIGHT);

     Graphics2D g2 = mySheetStencil.createGraphics();
     g2.setColor(new JBColor(Gray._255, Gray._0));
     g2.fillRect(0, 0, SHEET_WIDTH, SHEET_HEIGHT);
     g2.dispose();

     ShadowRenderer renderer = new ShadowRenderer();
     renderer.setSize(SHADOW_BORDER);
     renderer.setOpacity(.80f);
     renderer.setColor(new JBColor(JBColor.BLACK, Gray._10));
     myShadowImage = renderer.createShadow(mySheetStencil);
   }

   private void handleMnemonics(int i, String buttonTitle) {
     buttons[i].setName(buttonTitle);
     buttons[i].setText(buttonTitle);
     setMnemonicsFromChar('&', buttons[i]);
     setMnemonicsFromChar('_', buttons[i]);
   }

   private static void setMnemonicsFromChar(char mnemonicChar, JButton button) {
     String buttonTitle = button.getText();
     if (buttonTitle.indexOf(mnemonicChar) != -1) {
       button.setMnemonic(buttonTitle.charAt(buttonTitle.indexOf(mnemonicChar) + 1));
       button.setText(buttonTitle.replace(Character.toString(mnemonicChar), ""));
     }
   }

   void requestFocus() {
     final JComponent focusedComponent = (myDoNotAskOption == null) ? myFocusedButton : doNotAskCheckBox;
     if (focusedComponent == null) return; // it might be we have only one button. it is a default one in that case
     if (SystemInfo.isAppleJvm) {
       focusedComponent.requestFocus();
     } else {
       focusedComponent.requestFocusInWindow();
     }
   }

   JPanel getPanel(final JDialog w) {
     w.getRootPane().setDefaultButton(myDefaultButton);


     ActionListener actionListener = new ActionListener() {
       @Override
       public void actionPerformed(ActionEvent e) {
         if (e.getSource() instanceof JButton) {
           myResult = ((JButton)e.getSource()).getName();
         }
         mySheetMessage.startAnimation(false);
       }
     };

     mySheetPanel.registerKeyboardAction(actionListener,
                                         KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
                                         JComponent.WHEN_IN_FOCUSED_WINDOW);

     for (JButton button: buttons) {
       button.addActionListener(actionListener);
     }
     return mySheetPanel;
   }

   private static float getSheetAlpha() {
     return .95f;
   }

   private JPanel createSheetPanel(String title, String message, JButton[] buttons) {
     JPanel sheetPanel = new JPanel() {
       @Override
       protected void paintComponent(Graphics g2d) {
         final Graphics2D g = (Graphics2D) g2d.create();
         super.paintComponent(g);
         g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getSheetAlpha()));

         g.setColor(new JBColor(Gray._230, UIUtil.getPanelBackground()));
         Rectangle2D dialog  = new Rectangle2D.Double(SHADOW_BORDER, 0, SHEET_WIDTH, SHEET_HEIGHT);

         paintShadow(g);
         // draw the sheet background
         if (UIUtil.isUnderDarcula()) {
           g.fillRoundRect((int)dialog.getX(), (int)dialog.getY() - 5, (int)dialog.getWidth(), (int)(5 + dialog.getHeight()), 5, 5);
         } else {
           //todo make bottom corners
           g.fill(dialog);
         }
         paintShadowFromParent(g);
       }

     };

     sheetPanel.setOpaque(false);
     sheetPanel.setLayout(null);

     JPanel ico = new JPanel() {
       @Override
       protected void paintComponent(Graphics g) {
         super.paintComponent(g);
         myIcon.paintIcon(this, g, 0, 0);
       }
     };


     JEditorPane headerLabel = new JEditorPane();


     headerLabel.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
     headerLabel.setFont(boldFont);
     headerLabel.setEditable(false);

     headerLabel.setContentType("text/html");
     headerLabel.setSize(250, Short.MAX_VALUE);
     headerLabel.setText(title);
     headerLabel.setSize(250, headerLabel.getPreferredSize().height);

     headerLabel.setOpaque(false);
     headerLabel.setFocusable(false);

     sheetPanel.add(headerLabel);

     headerLabel.repaint();

     messageTextPane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
     messageTextPane.setFont(regularFont);
     messageTextPane.setEditable(false);

     messageTextPane.setContentType("text/html");

     messageTextPane.addHyperlinkListener(new HyperlinkListener() {
       public void hyperlinkUpdate(HyperlinkEvent he) {
         if(he.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
           if(Desktop.isDesktopSupported()) {
             try {
               Desktop.getDesktop().browse(he.getURL().toURI());
             }
             catch (IOException e) {
               LOG.error(e);
             }
             catch (URISyntaxException e) {
               LOG.error(e);
             }
           }
         }
       }
     });

     FontMetrics fontMetrics = mySheetMessage.getFontMetrics(regularFont);

     int widestWordWidth = 250;

     String [] words = (message == null) ? ArrayUtil.EMPTY_STRING_ARRAY : message.split(SPACE_OR_LINE_SEPARATOR_PATTERN);

     for (String word : words) {
       widestWordWidth = Math.max(fontMetrics.stringWidth(word), widestWordWidth);
     }

     messageTextPane.setSize(widestWordWidth, Short.MAX_VALUE);
     messageTextPane.setText(handleBreaks(message));
     messageArea.setSize(widestWordWidth, messageTextPane.getPreferredSize().height);

     SHEET_WIDTH = Math.max(LEFT_SHEET_OFFSET + widestWordWidth + RIGHT_OFFSET, SHEET_WIDTH);
     messageTextPane.setSize(messageArea);

     messageTextPane.setOpaque(false);
     messageTextPane.setFocusable(false);

     sheetPanel.add(messageTextPane);

     messageTextPane.repaint();

     ico.setOpaque(false);
     ico.setSize(new Dimension(AllIcons.Logo_welcomeScreen.getIconWidth(), AllIcons.Logo_welcomeScreen.getIconHeight()));
     ico.setLocation(LEFT_SHEET_PADDING, TOP_SHEET_PADDING);
     sheetPanel.add(ico);
     headerLabel.setLocation(LEFT_SHEET_OFFSET, TOP_SHEET_PADDING);
     messageTextPane.setLocation(LEFT_SHEET_OFFSET, TOP_SHEET_PADDING + headerLabel.getPreferredSize().height + GAP_BETWEEN_LINES);

     SHEET_HEIGHT = TOP_SHEET_PADDING + headerLabel.getPreferredSize().height + GAP_BETWEEN_LINES + messageArea.height + GAP_BETWEEN_LINES;

     if (myDoNotAskOption != null) {
       layoutDoNotAskCheckbox(sheetPanel);
     }

     layoutWithAbsoluteLayout(buttons, sheetPanel);

     SHEET_HEIGHT += BOTTOM_SHEET_PADDING;

     if (SHEET_HEIGHT < SHEET_MINIMUM_HEIGHT) {
       SHEET_HEIGHT = SHEET_MINIMUM_HEIGHT;
       shiftButtonsToTheBottom(SHEET_MINIMUM_HEIGHT - SHEET_HEIGHT);
     }

     sheetPanel.setFocusCycleRoot(true);

     recalculateShadow();

     sheetPanel.setSize(SHEET_NC_WIDTH, SHEET_NC_HEIGHT);

     return sheetPanel;
   }

   private static String handleBreaks(final String message) {
     return message.replaceAll("(\r\n|\n)", "<br/>");
   }

   private void shiftButtonsToTheBottom(int shiftDistance) {
     for (JButton b : buttons) {
       b.setLocation(b.getX(), b.getY() + shiftDistance);
     }
   }

   private void recalculateShadow() {
     SHEET_NC_WIDTH = SHEET_WIDTH + SHADOW_BORDER * 2;
     SHEET_NC_HEIGHT = SHEET_HEIGHT + SHADOW_BORDER;
   }

   private void layoutWithAbsoluteLayout(JButton[] buttons, JPanel sheetPanel) {
     layoutButtons(buttons, sheetPanel);
   }

   private void paintShadow(Graphics2D g2d) {
     g2d.setBackground(new JBColor(new Color(255, 255, 255, 0), new Color(110, 110, 110, 0)));
     g2d.clearRect(0, 0, SHEET_NC_WIDTH, SHEET_HEIGHT);
     g2d.drawImage(myShadowImage, 0, -SHADOW_BORDER, null);
     g2d.clearRect(SHADOW_BORDER, 0, SHEET_WIDTH, SHEET_HEIGHT);
   }


   private static float getShadowAlpha() {
     return ((UIUtil.isUnderDarcula())) ? .85f : .35f;
   }

   private void paintShadowFromParent(Graphics2D g2d) {
     g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getShadowAlpha()));
     g2d.drawImage(myShadowImage, 0, - SHEET_HEIGHT - SHADOW_BORDER, null);
   }

   private void layoutButtons(final JButton[] buttons, JPanel panel) {

     //int widestButtonWidth = 0;
     int buttonWidth = 0;
     SHEET_HEIGHT += GAP_BETWEEN_LINES;

     for (int i = 0; i < buttons.length; i ++) {
       buttons[i].repaint();
       buttons[i].setSize(buttons[i].getPreferredSize());
       buttonWidth += buttons[i].getWidth();
       if (i == buttons.length - 1) break;
       buttonWidth += GAP_BETWEEN_BUTTONS;
     }

     int buttonsRowWidth = LEFT_SHEET_OFFSET + buttonWidth + RIGHT_OFFSET;

     // update the pane if the sheet is going to be wider
     messageTextPane.setSize(Math.max(messageTextPane.getWidth(), buttonWidth), messageTextPane.getHeight());

     SHEET_WIDTH = Math.max(buttonsRowWidth, SHEET_WIDTH);

     int buttonShift = RIGHT_OFFSET;

     for (JButton button : buttons) {
       Dimension size = button.getSize();
       buttonShift += size.width;
       button.setBounds(SHEET_WIDTH - buttonShift,
                        SHEET_HEIGHT,
                        size.width, size.height);
       panel.add(button);
       buttonShift += GAP_BETWEEN_BUTTONS;
     }

     SHEET_HEIGHT += buttons[0].getHeight();
   }

   private void layoutDoNotAskCheckbox(JPanel sheetPanel) {
     doNotAskCheckBox = new JCheckBox(myDoNotAskOption.getDoNotShowMessage(), !myDoNotAskOption.isToBeShown());
     doNotAskCheckBox.addItemListener(new ItemListener() {
       @Override
       public void itemStateChanged(ItemEvent e) {
         myDoNotAskResult = e.getStateChange() == ItemEvent.SELECTED;
       }
     });
     doNotAskCheckBox.repaint();
     doNotAskCheckBox.setSize(doNotAskCheckBox.getPreferredSize());

     doNotAskCheckBox.setLocation(LEFT_SHEET_OFFSET, SHEET_HEIGHT);
     sheetPanel.add(doNotAskCheckBox);

     SHEET_HEIGHT += doNotAskCheckBox.getHeight();
   }

   /**
    * This method is used to show an image during message showing
    * @return image to show
    */
   Image getStaticImage() {
     final JFrame myOffScreenFrame = new JFrame() ;
     myOffScreenFrame.add(mySheetPanel);
     myOffScreenFrame.getRootPane().setDefaultButton(myDefaultButton);

     final BufferedImage image = (SystemInfo.isJavaVersionAtLeast("1.7")) ?
                                 UIUtil.createImage(SHEET_NC_WIDTH, SHEET_NC_HEIGHT, BufferedImage.TYPE_INT_ARGB) :
                                 GraphicsUtilities.createCompatibleTranslucentImage(SHEET_NC_WIDTH, SHEET_NC_HEIGHT);

     Graphics g = image.createGraphics();
     mySheetPanel.paint(g);

     g.dispose();

     myOffScreenFrame.dispose();
     return image;
   }

   public boolean getDoNotAskResult () {
     return myDoNotAskResult;
   }

   public String getResult() {
     return myResult;
   }
 }
	/*
	* Copyright 2000-2014 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 com.intellij.ui.messages;

	import com.intellij.icons.AllIcons;
	import com.intellij.openapi.diagnostic.Logger;
	import com.intellij.openapi.ui.DialogWrapper;
	import com.intellij.openapi.ui.Messages;
	import com.intellij.openapi.util.SystemInfo;
	import com.intellij.ui.Gray;
	import com.intellij.ui.JBColor;
	import com.intellij.util.ArrayUtil;
	import com.intellij.util.ui.UIUtil;
	import org.jdesktop.swingx.graphics.GraphicsUtilities;
	import org.jdesktop.swingx.graphics.ShadowRenderer;

	import javax.swing.*;
	import javax.swing.event.HyperlinkEvent;
	import javax.swing.event.HyperlinkListener;
	import java.awt.*;
	import java.awt.event.*;
	import java.awt.geom.Rectangle2D;
	import java.awt.image.BufferedImage;
	import java.io.IOException;
	import java.net.URISyntaxException;

	/**
	* Created by Denis Fokin
	*/
	public class SheetController {

	private static final Logger LOG = Logger.getInstance(SheetController.class);
	private static final int SHEET_MINIMUM_HEIGHT = 143;
	private static String fontName = "Lucida Grande";
	private static Font regularFont = new Font(fontName, Font.PLAIN, 10);
	private static Font boldFont = new Font(fontName, Font.BOLD, 12).deriveFont(Font.BOLD);
	private final DialogWrapper.DoNotAskOption myDoNotAskOption;
	private JCheckBox doNotAskCheckBox;
	private boolean myDoNotAskResult;

	private BufferedImage myShadowImage;

	private JButton[] buttons;
	private JButton myDefaultButton;
	private JButton myFocusedButton;

	public static int SHADOW_BORDER = 5;

	private static int RIGHT_OFFSET = 10 - SHADOW_BORDER;
	private static int BOTTOM_SHEET_PADDING = 10;

	private final static int TOP_SHEET_PADDING = 20;
	private final static int GAP_BETWEEN_LINES = 10;

	private final static int LEFT_SHEET_PADDING = 35;
	private final static int LEFT_SHEET_OFFSET = 120;

	private static int GAP_BETWEEN_BUTTONS = 5;

	private static String SPACE_OR_LINE_SEPARATOR_PATTERN = "[\\s" + System.getProperty("line.separator") + "]+";

	// SHEET
	public int SHEET_WIDTH = 400;

	public int SHEET_HEIGHT = 143;

	// SHEET + shadow
	int SHEET_NC_WIDTH = SHEET_WIDTH + SHADOW_BORDER * 2;
	int SHEET_NC_HEIGHT = SHEET_HEIGHT + SHADOW_BORDER ;


	private Icon myIcon = UIUtil.getInformationIcon();

	private String myResult;
	private JPanel mySheetPanel;
	private SheetMessage mySheetMessage;

	private JEditorPane messageTextPane = new JEditorPane();
	private Dimension messageArea = new Dimension(250, Short.MAX_VALUE);

	SheetController(final SheetMessage sheetMessage,
	final String title,
	final String message,
	final Icon icon,
	final String[] buttonTitles,
	final String defaultButtonTitle,
	final DialogWrapper.DoNotAskOption doNotAskOption,
	final String focusedButton) {
	if (icon != null) {
	myIcon = icon;
	}

	myDoNotAskOption = doNotAskOption;
	myDoNotAskResult = (doNotAskOption != null) && !doNotAskOption.isToBeShown();
	mySheetMessage = sheetMessage;
	buttons = new JButton[buttonTitles.length];

	myResult = null;

	for (int i = 0; i < buttons.length; i++) {
	String buttonTitle = buttonTitles[i];

	buttons[i] = new JButton();
	buttons[i].setOpaque(false);
	handleMnemonics(i, buttonTitle);

	if (buttonTitle.equals(defaultButtonTitle)) {
	myDefaultButton = buttons[i];
	}
	if (buttonTitle.equals(focusedButton)) {
	myFocusedButton = buttons[i];
	}
	}

	if (myFocusedButton == null) {
	myFocusedButton = myDefaultButton;
	}

	if (myResult == null) {
	myResult = Messages.CANCEL_BUTTON;
	}

	mySheetPanel = createSheetPanel(title, message, buttons);

	initShadowImage();
	}

	private void initShadowImage() {

	final BufferedImage mySheetStencil = GraphicsUtilities.createCompatibleTranslucentImage(SHEET_WIDTH, SHEET_HEIGHT);

	Graphics2D g2 = mySheetStencil.createGraphics();
	g2.setColor(new JBColor(Gray._255, Gray._0));
	g2.fillRect(0, 0, SHEET_WIDTH, SHEET_HEIGHT);
	g2.dispose();

	ShadowRenderer renderer = new ShadowRenderer();
	renderer.setSize(SHADOW_BORDER);
	renderer.setOpacity(.80f);
	renderer.setColor(new JBColor(JBColor.BLACK, Gray._10));
	myShadowImage = renderer.createShadow(mySheetStencil);
	}

	private void handleMnemonics(int i, String buttonTitle) {
	buttons[i].setName(buttonTitle);
	buttons[i].setText(buttonTitle);
	setMnemonicsFromChar('&', buttons[i]);
	setMnemonicsFromChar('_', buttons[i]);
	}

	private static void setMnemonicsFromChar(char mnemonicChar, JButton button) {
	String buttonTitle = button.getText();
	if (buttonTitle.indexOf(mnemonicChar) != -1) {
	button.setMnemonic(buttonTitle.charAt(buttonTitle.indexOf(mnemonicChar) + 1));
	button.setText(buttonTitle.replace(Character.toString(mnemonicChar), ""));
	}
	}

	void requestFocus() {
	final JComponent focusedComponent = (myDoNotAskOption == null) ? myFocusedButton : doNotAskCheckBox;
	if (focusedComponent == null) return; // it might be we have only one button. it is a default one in that case
	if (SystemInfo.isAppleJvm) {
	focusedComponent.requestFocus();
	} else {
	focusedComponent.requestFocusInWindow();
	}
	}

	JPanel getPanel(final JDialog w) {
	w.getRootPane().setDefaultButton(myDefaultButton);


	ActionListener actionListener = new ActionListener() {
	@Override
	public void actionPerformed(ActionEvent e) {
	if (e.getSource() instanceof JButton) {
	myResult = ((JButton)e.getSource()).getName();
	}
	mySheetMessage.startAnimation(false);
	}
	};

	mySheetPanel.registerKeyboardAction(actionListener,
	KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
	JComponent.WHEN_IN_FOCUSED_WINDOW);

	for (JButton button: buttons) {
	button.addActionListener(actionListener);
	}
	return mySheetPanel;
	}

	private static float getSheetAlpha() {
	return .95f;
	}

	private JPanel createSheetPanel(String title, String message, JButton[] buttons) {
	JPanel sheetPanel = new JPanel() {
	@Override
	protected void paintComponent(Graphics g2d) {
	final Graphics2D g = (Graphics2D) g2d.create();
	super.paintComponent(g);
	g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getSheetAlpha()));

	g.setColor(new JBColor(Gray._230, UIUtil.getPanelBackground()));
	Rectangle2D dialog = new Rectangle2D.Double(SHADOW_BORDER, 0, SHEET_WIDTH, SHEET_HEIGHT);

	paintShadow(g);
	// draw the sheet background
	if (UIUtil.isUnderDarcula()) {
	g.fillRoundRect((int)dialog.getX(), (int)dialog.getY() - 5, (int)dialog.getWidth(), (int)(5 + dialog.getHeight()), 5, 5);
	} else {
	//todo make bottom corners
	g.fill(dialog);
	}
	paintShadowFromParent(g);
	}

	};

	sheetPanel.setOpaque(false);
	sheetPanel.setLayout(null);

	JPanel ico = new JPanel() {
	@Override
	protected void paintComponent(Graphics g) {
	super.paintComponent(g);
	myIcon.paintIcon(this, g, 0, 0);
	}
	};


	JEditorPane headerLabel = new JEditorPane();



	headerLabel.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
	headerLabel.setFont(boldFont);
	headerLabel.setEditable(false);

	headerLabel.setContentType("text/html");
	headerLabel.setSize(250, Short.MAX_VALUE);
	headerLabel.setText(title);
	headerLabel.setSize(250, headerLabel.getPreferredSize().height);

	headerLabel.setOpaque(false);
	headerLabel.setFocusable(false);

	sheetPanel.add(headerLabel);

	headerLabel.repaint();

	messageTextPane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
	messageTextPane.setFont(regularFont);
	messageTextPane.setEditable(false);

	messageTextPane.setContentType("text/html");

	messageTextPane.addHyperlinkListener(new HyperlinkListener() {
	public void hyperlinkUpdate(HyperlinkEvent he) {
	if(he.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
	if(Desktop.isDesktopSupported()) {
	try {
	Desktop.getDesktop().browse(he.getURL().toURI());
	}
	catch (IOException e) {
	LOG.error(e);
	}
	catch (URISyntaxException e) {
	LOG.error(e);
	}
	}
	}
	}
	});

	FontMetrics fontMetrics = mySheetMessage.getFontMetrics(regularFont);

	int widestWordWidth = 250;

	String [] words = (message == null) ? ArrayUtil.EMPTY_STRING_ARRAY : message.split(SPACE_OR_LINE_SEPARATOR_PATTERN);

	for (String word : words) {
	widestWordWidth = Math.max(fontMetrics.stringWidth(word), widestWordWidth);
	}

	messageTextPane.setSize(widestWordWidth, Short.MAX_VALUE);
	messageTextPane.setText(handleBreaks(message));
	messageArea.setSize(widestWordWidth, messageTextPane.getPreferredSize().height);

	SHEET_WIDTH = Math.max(LEFT_SHEET_OFFSET + widestWordWidth + RIGHT_OFFSET, SHEET_WIDTH);
	messageTextPane.setSize(messageArea);

	messageTextPane.setOpaque(false);
	messageTextPane.setFocusable(false);

	sheetPanel.add(messageTextPane);

	messageTextPane.repaint();

	ico.setOpaque(false);
	ico.setSize(new Dimension(AllIcons.Logo_welcomeScreen.getIconWidth(), AllIcons.Logo_welcomeScreen.getIconHeight()));
	ico.setLocation(LEFT_SHEET_PADDING, TOP_SHEET_PADDING);
	sheetPanel.add(ico);
	headerLabel.setLocation(LEFT_SHEET_OFFSET, TOP_SHEET_PADDING);
	messageTextPane.setLocation(LEFT_SHEET_OFFSET, TOP_SHEET_PADDING + headerLabel.getPreferredSize().height + GAP_BETWEEN_LINES);

	SHEET_HEIGHT = TOP_SHEET_PADDING + headerLabel.getPreferredSize().height + GAP_BETWEEN_LINES + messageArea.height + GAP_BETWEEN_LINES;

	if (myDoNotAskOption != null) {
	layoutDoNotAskCheckbox(sheetPanel);
	}

	layoutWithAbsoluteLayout(buttons, sheetPanel);

	SHEET_HEIGHT += BOTTOM_SHEET_PADDING;

	if (SHEET_HEIGHT < SHEET_MINIMUM_HEIGHT) {
	SHEET_HEIGHT = SHEET_MINIMUM_HEIGHT;
	shiftButtonsToTheBottom(SHEET_MINIMUM_HEIGHT - SHEET_HEIGHT);
	}

	sheetPanel.setFocusCycleRoot(true);

	recalculateShadow();

	sheetPanel.setSize(SHEET_NC_WIDTH, SHEET_NC_HEIGHT);

	return sheetPanel;
	}

	private static String handleBreaks(final String message) {
	return message.replaceAll("(\r\n\|\n)", "<br/>");
	}

	private void shiftButtonsToTheBottom(int shiftDistance) {
	for (JButton b : buttons) {
	b.setLocation(b.getX(), b.getY() + shiftDistance);
	}
	}

	private void recalculateShadow() {
	SHEET_NC_WIDTH = SHEET_WIDTH + SHADOW_BORDER * 2;
	SHEET_NC_HEIGHT = SHEET_HEIGHT + SHADOW_BORDER;
	}

	private void layoutWithAbsoluteLayout(JButton[] buttons, JPanel sheetPanel) {
	layoutButtons(buttons, sheetPanel);
	}

	private void paintShadow(Graphics2D g2d) {
	g2d.setBackground(new JBColor(new Color(255, 255, 255, 0), new Color(110, 110, 110, 0)));
	g2d.clearRect(0, 0, SHEET_NC_WIDTH, SHEET_HEIGHT);
	g2d.drawImage(myShadowImage, 0, -SHADOW_BORDER, null);
	g2d.clearRect(SHADOW_BORDER, 0, SHEET_WIDTH, SHEET_HEIGHT);
	}


	private static float getShadowAlpha() {
	return ((UIUtil.isUnderDarcula())) ? .85f : .35f;
	}

	private void paintShadowFromParent(Graphics2D g2d) {
	g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getShadowAlpha()));
	g2d.drawImage(myShadowImage, 0, - SHEET_HEIGHT - SHADOW_BORDER, null);
	}

	private void layoutButtons(final JButton[] buttons, JPanel panel) {

	//int widestButtonWidth = 0;
	int buttonWidth = 0;
	SHEET_HEIGHT += GAP_BETWEEN_LINES;

	for (int i = 0; i < buttons.length; i ++) {
	buttons[i].repaint();
	buttons[i].setSize(buttons[i].getPreferredSize());
	buttonWidth += buttons[i].getWidth();
	if (i == buttons.length - 1) break;
	buttonWidth += GAP_BETWEEN_BUTTONS;
	}

	int buttonsRowWidth = LEFT_SHEET_OFFSET + buttonWidth + RIGHT_OFFSET;

	// update the pane if the sheet is going to be wider
	messageTextPane.setSize(Math.max(messageTextPane.getWidth(), buttonWidth), messageTextPane.getHeight());

	SHEET_WIDTH = Math.max(buttonsRowWidth, SHEET_WIDTH);

	int buttonShift = RIGHT_OFFSET;

	for (JButton button : buttons) {
	Dimension size = button.getSize();
	buttonShift += size.width;
	button.setBounds(SHEET_WIDTH - buttonShift,
	SHEET_HEIGHT,
	size.width, size.height);
	panel.add(button);
	buttonShift += GAP_BETWEEN_BUTTONS;
	}

	SHEET_HEIGHT += buttons[0].getHeight();
	}

	private void layoutDoNotAskCheckbox(JPanel sheetPanel) {
	doNotAskCheckBox = new JCheckBox(myDoNotAskOption.getDoNotShowMessage(), !myDoNotAskOption.isToBeShown());
	doNotAskCheckBox.addItemListener(new ItemListener() {
	@Override
	public void itemStateChanged(ItemEvent e) {
	myDoNotAskResult = e.getStateChange() == ItemEvent.SELECTED;
	}
	});
	doNotAskCheckBox.repaint();
	doNotAskCheckBox.setSize(doNotAskCheckBox.getPreferredSize());

	doNotAskCheckBox.setLocation(LEFT_SHEET_OFFSET, SHEET_HEIGHT);
	sheetPanel.add(doNotAskCheckBox);

	SHEET_HEIGHT += doNotAskCheckBox.getHeight();
	}

	/**
	* This method is used to show an image during message showing
	* @return image to show
	*/
	Image getStaticImage() {
	final JFrame myOffScreenFrame = new JFrame() ;
	myOffScreenFrame.add(mySheetPanel);
	myOffScreenFrame.getRootPane().setDefaultButton(myDefaultButton);

	final BufferedImage image = (SystemInfo.isJavaVersionAtLeast("1.7")) ?
	UIUtil.createImage(SHEET_NC_WIDTH, SHEET_NC_HEIGHT, BufferedImage.TYPE_INT_ARGB) :
	GraphicsUtilities.createCompatibleTranslucentImage(SHEET_NC_WIDTH, SHEET_NC_HEIGHT);

	Graphics g = image.createGraphics();
	mySheetPanel.paint(g);

	g.dispose();

	myOffScreenFrame.dispose();
	return image;
	}

	public boolean getDoNotAskResult () {
	return myDoNotAskResult;
	}

	public String getResult() {
	return myResult;
	}
	}