Proj. Bloco de Notas

GustavoTavone · Setembro 5, 2006, 4:21pm

E ai galera blz…

Tenho q desenvolver um bloco de notas em java, e nao estou conseguindo, fazer o imprimir, mudar a fonte e nem configurar a pagina, pq eu quero fezer da mesma forma q no notepad, chamar a caixa de impressoras do windows, ou a janela de fontes do windows ou a janela de configurar pagina…

Galera to precisando mt, pois essa é minha prova da facu, se alguem puder ajudar eu agradeço…
Valewwwwwwwwwwwwwwwwwww

Luca · Setembro 5, 2006, 4:22pm

Olá

Para imprimir estude Java Print Services.

[]s
Luca

edertp · Setembro 5, 2006, 4:31pm

GustavoTavone pow tenta implementar e as duvidas tu posta aqui pq o programa pronto acho q niguem vai qre posta aqui, nao ta bem na filosofia do forum…

Falos.

Ironlynx · Setembro 6, 2006, 1:29am

Gustavo, já tive que fazeralgo parecidono passado.Como estou de bom humor, vou postar um exemplo aqui q eu peguei num site java japonês uma vez:

[code]
import javax.swing.;
import javax.swing.text.;
import javax.swing.event.;
import java.awt.event.;
import java.awt.;
import javax.swing.text.rtf.RTFEditorKit;
import java.io.;

public class TextPaneTest extends JFrame implements ActionListener, CaretListener{

protected JTextPane textPane;

protected DefaultStyledDocument doc;
protected StyleContext sc;

protected JToolBar toolBar;

protected JComboBox comboFonts;  /* Fontes*/
protected JComboBox comboSizes;  /* Fontes-TAMs */
protected JToggleButton toggleB; /* */
protected JToggleButton toggleI; /* */
protected JToggleButton toggleU; /* */
protected JToggleButton toggleS; /* */
protected JComboBox comboColor;  /* */

protected String currentFontName = "";
protected int currentFontSize = 0;
protected boolean flag = false;

protected String[] colorHTML = {"#000000", "#0000FF", "#00FF00",
    "#00FFFF", "#FF0000", "#FF00FF", "#FFFF00", "#FFFFFF"};

protected RTFEditorKit rtfEditor;

public static void main(String[] args){
    TextPaneTest test = new TextPaneTest();

    test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    test.setVisible(true);
}

TextPaneTest(){
    setTitle("TextPaneTest Test");
    setBounds( 10, 10, 500, 300);

    textPane = new JTextPane();
    JScrollPane scroll = new JScrollPane(textPane, 
        JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, 
        JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    getContentPane().add(scroll, BorderLayout.CENTER);

    sc = new StyleContext();
    doc = new DefaultStyledDocument(sc);

    textPane.setDocument(doc);
    textPane.addCaretListener(this);

    /* */
    rtfEditor = new RTFEditorKit();

    JMenuBar menuBar = createMenuBar();
    setJMenuBar(menuBar);

    initToolbar();
    getContentPane().add(toolBar, BorderLayout.NORTH);

    /* */
    initDocument();
}

protected JMenuBar createMenuBar(){
    JMenuBar menuBar = new JMenuBar();
    JMenu fileMenu = new JMenu("File", true);
    menuBar.add(fileMenu);

    JMenuItem newItem = new JMenuItem("New");
    fileMenu.add(newItem);
    newItem.addActionListener(this);
    newItem.setActionCommand("newItem");

    JMenuItem openItem = new JMenuItem("Open");
    fileMenu.add(openItem);
    openItem.addActionListener(this);
    openItem.setActionCommand("openItem");

    JMenuItem saveItem = new JMenuItem("Save");
    fileMenu.add(saveItem);
    saveItem.addActionListener(this);
    saveItem.setActionCommand("saveItem");

    fileMenu.addSeparator();

    JMenuItem exitItem = new JMenuItem("Exit");
    fileMenu.add(exitItem);
    exitItem.addActionListener(this);
    exitItem.setActionCommand("exitItem");

    return menuBar;
}

protected void initDocument(){
    StringBuffer sb = new StringBuffer();
    sb.append("Texto anexado\n");
    sb.append("Ao TextPane!!!");

    try{
        /**/
        doc.insertString(0, new String(sb), 
            sc.getStyle(StyleContext.DEFAULT_STYLE));
    }catch (BadLocationException ble){
        System.err.println("Impossivel Exibir o Texto!!!");
    }
}

protected void initToolbar(){
    toolBar = new JToolBar();
    toolBar.setLayout(new FlowLayout(FlowLayout.LEFT));

    /* */
    GraphicsEnvironment ge = 
        GraphicsEnvironment.getLocalGraphicsEnvironment();
    String familyName[] = ge.getAvailableFontFamilyNames();

    /*  */
    comboFonts = new JComboBox(familyName);
    comboFonts.setMaximumSize(comboFonts.getPreferredSize());
    comboFonts.addActionListener(this);
    comboFonts.setActionCommand("comboFonts");
    toolBar.add(comboFonts);

    /*  */
    comboSizes = new JComboBox(new String[] {"8", "9", "10", 
        "11", "12", "14", "16", "18", "20", "22", "24", "26", 
        "28", "36", "48", "72"});
    comboSizes.setMaximumSize(comboSizes.getPreferredSize());
    comboSizes.addActionListener(this);
    comboSizes.setActionCommand("comboSizes");
    toolBar.add(comboSizes);

    toolBar.addSeparator();

    /* */
    toggleB = new JToggleButton("&lt;html&gt;<b>B</b>&lt;/html&gt;");
    toggleB.setPreferredSize(new Dimension(26, 26));
    toggleB.addActionListener(this);
    toggleB.setActionCommand("toggleB");
    toolBar.add(toggleB);

    /* ŽÎ‘Ì ‘I‘ð—pƒgƒOƒ‹ƒ{ƒ^ƒ“ */
    toggleI = new JToggleButton("&lt;html&gt;<i>I</i>&lt;/html&gt;");
    toolBar.add(toggleI);
    toggleI.addActionListener(this);
    toggleI.setActionCommand("toggleI");
    toggleI.setPreferredSize(new Dimension(26, 26));

    /* */
    toggleU = new JToggleButton("&lt;html&gt;<u>U</u>&lt;/html&gt;");
    toolBar.add(toggleU);
    toggleU.addActionListener(this);
    toggleU.setActionCommand("toggleU");
    toggleU.setPreferredSize(new Dimension(26, 26));

    /* */
    toggleS = new JToggleButton("&lt;html&gt;&lt;s&gt;S&lt;/s&gt;&lt;/html&gt;&quot;);
    toolBar.add(toggleS);
    toggleS.addActionListener(this);
    toggleS.setActionCommand(&quot;toggleS&quot;);
    toggleS.setPreferredSize(new Dimension(26, 26));

    toolBar.addSeparator();

    /* */
    DefaultComboBoxModel colorModel = new DefaultComboBoxModel();
    for (int i = 0 ; i &lt 8; i++){
        /*  */
        StringBuffer sb = new StringBuffer();
        sb.append(&quot;&lt;html&gt;<font color=\"");
        sb.append(colorHTML[i]);
        sb.append("\">¡</font>&lt;/html&gt;");

        colorModel.addElement(new String(sb));
    }
    comboColor = new JComboBox(colorModel);
    comboColor.setMaximumSize(comboColor.getPreferredSize());
    comboColor.addActionListener(this);
    comboColor.setActionCommand("comboColor");
    toolBar.add(comboColor);
}

public void actionPerformed(ActionEvent e){
    if (flag){
        /*  */
        return;
    }

    String actionCommand = e.getActionCommand();

    if (actionCommand.equals("exitItem")){
        System.exit(0);
    }else if ((actionCommand.equals("newItem")) || 
        (actionCommand.equals("openItem")) ||
        (actionCommand.equals("saveItem"))){

        fileOperation(actionCommand);
    }else{
        MutableAttributeSet attr = new SimpleAttributeSet();

        if (actionCommand.equals("comboFonts")){
            /* */
            String fontName = comboFonts.getSelectedItem().toString();
            StyleConstants.setFontFamily(attr, fontName);
        }else if (actionCommand.equals("comboSizes")){
            /* */
            int fontSize = 0;
            try{
                fontSize = Integer.parseInt(comboSizes.
                    getSelectedItem().toString());
            }catch (NumberFormatException ex){
                return;
            }

            StyleConstants.setFontSize(attr, fontSize);
        }else if (actionCommand.equals("toggleB")){
            /* */
            StyleConstants.setBold(attr, toggleB.isSelected());
        }else if (actionCommand.equals("toggleI")){
            /* */
            StyleConstants.setItalic(attr, toggleI.isSelected());
        }else if (actionCommand.equals("toggleU")){
            /* */
            StyleConstants.setUnderline(attr, toggleU.isSelected());
        }else if (actionCommand.equals("toggleS")){
            /* */
            StyleConstants.setStrikeThrough(attr, toggleS.isSelected());
        }else if (actionCommand.equals("comboColor")){
            /* */
            int col = comboColor.getSelectedIndex();
            int b = (col % 2) * 255;
            int g = ((col / 2) % 2) * 255;
            int r = ((col / 4) % 2) * 255;

            StyleConstants.setForeground(attr, new Color(r, g, b));
        }else{
            return;
        }

        setAttributeSet(attr);
    }

    textPane.requestFocusInWindow();
}

protected void fileOperation(String actionCommand){
    JFileChooser chooser = new JFileChooser();
    RtfFilter filter = new RtfFilter();
    chooser.setFileFilter(filter);

    if (actionCommand.equals("newItem")){
        /* */
        doc = new DefaultStyledDocument(sc);
        textPane.setDocument(doc);
    }else if (actionCommand.equals("openItem")){
        /* */
        doc = new DefaultStyledDocument(sc);

        if (chooser.showOpenDialog(this) != JFileChooser.APPROVE_OPTION){
            return;
        }

        File fChoosen = chooser.getSelectedFile();
        try{
            InputStream in = new FileInputStream(fChoosen);
            rtfEditor.read(in, doc, 0);
            in.close();
        }catch(Exception ex){
            ex.printStackTrace();
        }

        textPane.setDocument(doc);
    }else if (actionCommand.equals("saveItem")){
        /* */
        if (chooser.showSaveDialog(this) != JFileChooser.APPROVE_OPTION){
            return;
        }

        File fChoosen = chooser.getSelectedFile();
        try{
            OutputStream out = new FileOutputStream(fChoosen);
            rtfEditor.write(out, doc, 0, doc.getLength());
            out.close();
        }catch(Exception ex){
            ex.printStackTrace();
        }
    }else{
        return;
    }
}

protected void setAttributeSet(AttributeSet attr) {
    /* */

    int start = textPane.getSelectionStart();
    int end = textPane.getSelectionEnd();

    doc.setCharacterAttributes(start, end - start, attr, false);
}

public void caretUpdate(CaretEvent e){
    flag = true;

    int p = textPane.getSelectionStart();
    AttributeSet atrr = doc.getCharacterElement(p).getAttributes();

    String name = StyleConstants.getFontFamily(atrr);
    /* */
    if (!currentFontName.equals(name)){
        currentFontName = name;
        comboFonts.setSelectedItem(name);
    }

    int size = StyleConstants.getFontSize(atrr);
    /* */
    if (currentFontSize != size){
        currentFontSize = size;
        comboSizes.setSelectedItem(Integer.toString(size));
    }

    /* */
    toggleB.setSelected(StyleConstants.isBold(atrr));
    toggleI.setSelected(StyleConstants.isItalic(atrr));
    toggleU.setSelected(StyleConstants.isUnderline(atrr));
    toggleS.setSelected(StyleConstants.isStrikeThrough(atrr));

    /* */
    Color col = StyleConstants.getForeground(atrr);
    int r = (col.getRed() / 255) * 4;
    int g = (col.getGreen() / 255) * 2;
    int b = col.getBlue() / 255;
    comboColor.setSelectedIndex(r + g + b);

    flag = false;
}

}[/code]

E um RTFilter só para compilar:

import java.io.File;

public class RtfFilter extends javax.swing.filechooser.FileFilter
{
  public boolean accept (File f) {
    return f.getName ().toLowerCase ().endsWith (".rtf")
          || f.isDirectory ();
  }
  
  public String getDescription () {
    return "Rtf files (*.rtf)";
  }
} // class RtfFilter

Arrume os filtros comforme sua necessidade(Txt,Rtf…) e se vira!

Ironlynx · Setembro 6, 2006, 1:32am

Ah, e reforçando a dica do Luca, para imprimir, use:

http://java.sun.com/j2se/1.5.0/docs/guide/jps/spec/JPSTOC.fm.html

system · Dezembro 28, 2015, 8:25pm

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