Blimp

@@ -3,6 +3,10 @@ Copyright (C) 2004-2011: Stefan Schuermans <stefan@schuermans.info>

 Copyleft: GNU public license - http://www.gnu.org/copyleft/gpl.html

 a blinkenarea.org project

+1.4.2 2011-09-11

+----------------

+added scrolling text generator

+

 1.4.1 2011-09-11

 ----------------

 added FlexiPix output feature

@@ -8,7 +8,7 @@ JFLEXIPIX=../JFlexiPix/JFlexiPix.jar

 VERSION_MAJOR=1

 VERSION_MINOR=4

-VERSION_REVISION=1

+VERSION_REVISION=2

 JAVAC=javac

 JAR=jar

@@ -75,7 +75,7 @@ public class Blimp extends JApplet

   JFrame frame; //main window (if running as full application)

   Component dialogParent; //parent to use for dialogs

   JMenuBar menubar; //menubar in main window

-  JMenu menuFile, menuInfo, menuEdit, menuFrameSel, menuPlay; //menus

+  JMenu menuFile, menuInfo, menuEdit, menuFrameSel, menuGen, menuPlay; //menus

   JMenu menuOutput, menuHelp;

   JMenuItem menuFileNew, menuFileLoad, menuFileSave, menuFileSaveAs, menuFileQuit;

   JMenuItem menuInfoShow, menuInfoAdd, menuInfoDelete;

@@ -85,6 +85,7 @@ public class Blimp extends JApplet

   JMenuItem menuEditInsertFrame, menuEditDuplicateFrame, menuEditDeleteFrame;

   JMenuItem menuFrameSelNone, menuFrameSelSingle, menuFrameSelStart, menuFrameSelEnd;

   JMenuItem menuFrameSelCopy, menuFrameSelMove, menuFrameSelReverse, menuFrameSelDelete;

+  JMenuItem menuGenScrollText;

   JMenuItem menuEditImportImages, menuEditImportMovie;

   JMenuItem menuPlayStart, menuPlayStop;

   JCheckBoxMenuItem menuPlayBegin, menuPlayLoop;

@@ -428,7 +429,7 @@ public class Blimp extends JApplet

       info[i] = curMovie.getInfoType( i ) + ": " +

                 curMovie.getInfoData( i );

-    //ask for new size

+    //ask for information to delete

     selected = JOptionPane.showInputDialog( dialogParent,

                                             "Select information to delete:",

                                             "Blimp - Delete Information...",

@@ -742,8 +743,8 @@ public class Blimp extends JApplet

       bufferedImage.getGraphics( ).drawImage( image, 0, 0, width, height, null );

       //create new empty frame

-      newFrame = new BlinkenFrame( height, width,

-                                curMovie.getChannels( ), curMovie.getMaxval( ), defDuration );

+      newFrame = new BlinkenFrame( height, width, curMovie.getChannels( ),

+                                   curMovie.getMaxval( ), defDuration );

       height = newFrame.getHeight( ); //dimensions might have been invalid and thus been adapted

       width = newFrame.getWidth( );

       newFrame.clear( );

@@ -1018,6 +1019,162 @@ public class Blimp extends JApplet

     updateFrames( frameNo );

   }

+  //"Generate Scrolling Text..." was chosen from menu

+  private void actionGenScrollText( )

+  {

+    GraphicsEnvironment graphEnv;

+    Font [] fonts;

+    String [] fontNames;

+    int i, width, height, x, y, frameCnt, frameNo, frameNoStart;

+    int fontHeight, fontPos, textWidth, textPos;

+    Object res;

+    Font font, scaledFont;

+    String text;

+    BufferedImage imgBackgr, img;

+    Graphics2D grBackgr, gr;

+    float fontSize;

+    FontMetrics metrics;

+    BlinkenFrame frame;

+

+    //do nothing if there is no current frame

+    if( curFrame == null ) {

+      labelStatus.setText( "Generate Scrolling Text: " +

+                           "not possible withpout current frame as background..." );

+      return;

+    }

+

+    //get available fonts and their names

+    graphEnv = GraphicsEnvironment.getLocalGraphicsEnvironment( );

+    fonts = graphEnv.getAllFonts( );

+    fontNames = new String [fonts.length];

+    for( i = 0; i < fonts.length; ++i )

+      fontNames[i] = fonts[i].getFontName( );

+

+

+    //let user choose a font

+    res = JOptionPane.showInputDialog( dialogParent,

+                                       "Please note that scrolling text" +

+                                       " is one of the most boring things" +

+                                       " to look at.\n\n" +

+                                       "Select font:",

+                                       "Blimp - Generate Scrolling Text...",

+                                       JOptionPane.QUESTION_MESSAGE,

+                                       null, fontNames, null );

+    if( res == null ) { //exit if dialog was cancelled

+      labelStatus.setText( "Generate Scrolling Text: cancelled..." );

+      return;

+    }

+

+    //get selected font

+    font = null;

+    for( i = 0; i < fontNames.length; i++ ) {

+      if( fontNames[i] == res ) {

+        font = fonts[i];

+        break;

+      }

+    }

+    if( font == null ) { // could not get font

+      labelStatus.setText( "Generate Scrolling Text: no font selected..." );

+      return;

+    }

+    //free unused fonts

+    fonts = null;

+    fontNames = null;

+

+    //ask user for text

+    res = JOptionPane.showInputDialog( dialogParent,

+                                       "Please note that scrolling text" +

+                                       " is one of the most boring things" +

+                                       " to look at.\n\n" +

+                                       "Enter text:",

+                                       "Blimp - Generate Scrolling Text...",

+                                        JOptionPane.QUESTION_MESSAGE,

+                                        null, null, "" );

+    if( res == null ) { //exit if dialog was cancelled

+      labelStatus.setText( "Generate Scrolling Text: cancelled..." );

+      return;

+    }

+    text = res.toString( );

+    if( text.length( ) == 0 ) { //exit if no text was entered

+      labelStatus.setText( "Generate Scrolling Text: no text entered..." );

+      return;

+    }

+

+    //get current frame as buffered image to use as background

+    width = curFrame.getWidth( );

+    height = curFrame.getHeight( );

+    imgBackgr = new BufferedImage( width, height, BufferedImage.TYPE_INT_ARGB );

+    for( y = 0; y < height; y++ )

+      for( x = 0; x < width; x++ )

+        imgBackgr.setRGB( x, y, curFrame.getColor( y, x ).getRGB( ) );

+

+    //adapt font size until height matches frame

+    grBackgr = imgBackgr.createGraphics( );

+    fontSize = 1.0f;

+    while( true ) {

+      scaledFont = font.deriveFont( fontSize );

+      metrics = grBackgr.getFontMetrics( scaledFont );

+      fontHeight = metrics.getAscent( ) +

+                   metrics.getDescent( ) +

+                   metrics.getLeading( );

+      if( fontHeight == height )

+        break;

+      else if( fontHeight <= 0 )

+        fontSize *= 100.0f;

+      else

+        fontSize *= (float)height / (float)fontHeight;

+    }

+

+    //get position where to insert frames

+    frameCnt = curMovie.getFrameCnt( );

+    frameNoStart = scrollFrames.getValue( ) + 1;

+    if( frameNoStart < 0 )

+      frameNoStart = 0;

+    if( frameNoStart > frameCnt )

+      frameNoStart = frameCnt;

+

+    //render scrolling text on top of backround image

+    fontPos = metrics.getAscent( ) + metrics.getLeading( ) / 2;

+    textWidth = metrics.charsWidth( text.toCharArray( ), 0, text.length( ) );

+    frameNo = frameNoStart;

+    for( textPos = width; textPos >= -textWidth ; textPos-- ) {

+

+      //duplicate background and render text onto it

+      img = new BufferedImage( imgBackgr.getColorModel( ),

+                               imgBackgr.copyData( null ),

+                               imgBackgr.getColorModel( ).isAlphaPremultiplied( ),

+                               null );

+      gr = img.createGraphics( );

+      gr.setColor( frameEditor.getColor( ) );

+      gr.setFont( scaledFont );

+      gr.setRenderingHint( RenderingHints.KEY_ANTIALIASING,

+                           RenderingHints.VALUE_ANTIALIAS_ON );

+      gr.drawString( text, textPos, fontPos );

+

+      //convert image to BlinkenFrame and intert it into movie

+      frame = new BlinkenFrame( height, width,

+                                curFrame.getChannels( ),

+                                curFrame.getMaxval( ),

+                                curFrame.getDuration( ) );

+      for( y = 0; y < height; y++ )

+        for( x = 0; x < width; x++ )

+          frame.setColor( y, x, new Color( img.getRGB( x, y ) ) );

+      curMovie.insertFrame( frameNo, frame );

+      frameNo++;

+

+    }

+    curMovieChanged = true;

+

+    //update controls

+    updateFrames( frameSelStart );

+    //select newly inserted frames

+    frameSelStart = frameNoStart;

+    frameSelEnd = frameNo - 1;

+    stateFrameSel( );

+

+    labelStatus.setText( "Generate Scrolling Text: generated frames inserted..." );

+  }

+

   //"Play Start" was chosen from menu

   private void actionPlayStart( )

   {

@@ -2026,6 +2183,8 @@ public class Blimp extends JApplet

       actionFrameSelReverse( );

     else if( e.getSource( ) == menuFrameSelDelete )

       actionFrameSelDelete( );

+    else if( e.getSource( ) == menuGenScrollText )

+      actionGenScrollText( );

     else if( e.getSource( ) == menuPlayStart )

       actionPlayStart( );

     else if( e.getSource( ) == menuPlayStop )

@@ -2548,6 +2707,14 @@ public class Blimp extends JApplet

     menuFrameSelDelete.setEnabled( false );

     menuFrameSelDelete.addActionListener( this );

     menuFrameSel.add( menuFrameSelDelete );

+    //generate menu

+    menuGen = new JMenu( "Generate" );

+    menuGen.setMnemonic( KeyEvent.VK_G );

+    menubar.add( menuGen );

+    menuGenScrollText = new JMenuItem( "Scrolling Text..." );

+    menuGenScrollText.setMnemonic( KeyEvent.VK_S );

+    menuGenScrollText.addActionListener( this );

+    menuGen.add( menuGenScrollText );

     //play menu

     menuPlay = new JMenu( "Play" );

     menuPlay.setMnemonic( KeyEvent.VK_P );

@@ -730,6 +730,11 @@ public class BlinkenFrameEditor extends BlinkenFrameDisplay

     updateInfo( );

   }

+  public Color getColor( )

+  {

+    return color;

+  }

+

   public void setColor( Color newColor )

   {

     color = newColor;