MenuBar.java

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// -*-Java-*- 

package pkgMcj;
import pkgView.*;

import java.util.*;
import java.text.*;

public class MenuBar {

   private RowCol rc;
   private int defaultColor, activeColor, numCols;
   private boolean isReady = false;

   private Vector vector;
   
   private ScreenKit sk = ScreenKit.getSingleton();
   private Keyboard kb = Keyboard.getSingleton();
   private TextItem titleMcj;
   private Mcj mcj;
   private DropMenu dm;

   private DropMenu  leftMenu;
   private DropMenu  fileMenu;
   private DropMenu  optMenu;
   private DropMenu  cmdMenu;
   private DropMenu  rightMenu;

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public MenuBar(Mcj parent){
      this.mcj = parent;
      rc = new RowCol(this,0,0);
      this.numCols = 79;
      this.setColors( sk.PAIR_BLACK_CYAN, sk.PAIR_WHITE_BLACK );
      vector = new Vector();
      titleMcj = new TextItem("  ", numCols);

      titleMcj.setText(" MCJ - Midnight Commander in Java [06sep04a] " );

      titleMcj.setColors( defaultColor, activeColor);
      titleMcj.setPosition(0, 0);
      titleMcj.setAttribute(sk.SK_BOLD);
      titleMcj.setSelected(false);

      leftMenu  = new DropMenu( mcj, "Left",    0, 3 );
      fileMenu  = new DropMenu( mcj, "File",    0, 11 );
      cmdMenu   = new DropMenu( mcj, "Command", 0, 20 );
      optMenu   = new DropMenu( mcj, "Options", 0, 32);
      rightMenu = new DropMenu( mcj, "Right",   0, 44 );

      this.addItem( leftMenu );
      this.addItem( fileMenu );
      this.addItem( cmdMenu );
      this.addItem( optMenu );
      this.addItem( rightMenu );

   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public void redraw(){
      if( !hasFocus() ){
         titleMcj.redraw();
         sk.ttyRefresh();
         return;
      }
      sk.ttyDrawHline( rc.yPos,rc.xPos,' ',numCols,defaultColor);
      for( int i=0; i < vector.size(); i++ ){
         dm = (DropMenu)vector.elementAt(i);
         dm.redraw();
      }
      sk.ttyRefresh();
   }
   
   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private void addItem( DropMenu dropMenu ){
      vector.add(dropMenu);
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private boolean hasFocus( ){
      int tv = mcj.currentMode;

      boolean tf = false;
      if( tv == mcj.STATE_PULDN ){
         tf = true;
      }
      return tf;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public void setColors( int color1, int color2 ){
      defaultColor = color1;
      activeColor = color2;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public boolean checkKey( boolean flag,int keyItem ){
      if( flag ) {
         // indicates key already handled
         return flag;
      }

      //if( !updateActive() ) return false;

      int tv;

      if( keyItem == kb.KEY_NEWMODE ){
         redraw();
         return false;
      }

      if( keyItem == kb.KEY_F9 ){
         tv = mcj.STATE_PULDN;
         mcj.setState( tv );
      }

      if( keyItem == kb.KEY_ESC ){
         tv = mcj.STATE_2PL;
         mcj.setState( tv );
      }

      //if( updateRow(keyItem) ){
      // redraw(false);
      // return true;
      //}

      tv = updateTabbing( keyItem );
      if( tv != mcj.STATE_NULL ){
         redraw();              // clear highlights
         mcj.setState( tv );
         return true;           // tab to other panel
      }
      return false;
   }


   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private boolean updateActive(){
      /*
      int tv = mcj.currentMode;
      if( tv == mcj.STATE_2PL || tv == mcj.STATE_2PR ) {
         return true;
      }
      if( tv == mcj.STATE_1PL && panelId == mcj.PANEL_LEFT ){
         return true;
      }
      if( tv == mcj.STATE_1PR && panelId == mcj.PANEL_RIGHT ){
         return true;
      }
      */
      return false;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private int updateTabbing( int k ){
      /*
      if( k != kb.KEY_TAB ){
         return mcj.STATE_NULL;
      }
      int tv = mcj.currentMode;
      if( tv == mcj.STATE_2PL && panelId == mcj.PANEL_LEFT ){
         return mcj.STATE_2PR;
      }
      if( tv == mcj.STATE_2PR && panelId == mcj.PANEL_RIGHT ){
         return mcj.STATE_2PL;
      }
      */
      return mcj.STATE_NULL;
   }



} // end class MenuBar



class RowCol {

   int
      yPos,                     
      xPos;                     

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   RowCol( MenuBar mb, int y, int x ){
      this.setPosition(mb,y,x);
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private RowCol(){
      // can't use the default constructor
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public void setPosition( MenuBar mb, int y, int x){
      yPos = y;
      xPos = x;
      if( yPos < 0 ){
         yPos = 0;
      }
      else{
         if( yPos > 79 ){
            yPos = 0;
         }
      }

   } // setPosition

} // end class RowCol

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