Example usage for org.eclipse.swt.widgets Canvas setSize

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Canvas setSize.

Prototype

public void setSize(int width, int height) 

Source Link

Document

Sets the receiver's size to the point specified by the arguments.

Usage

From source file:DrawExample.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Drawing Example");

    Canvas canvas = new Canvas(shell, SWT.NONE);
    canvas.setSize(150, 150);
    canvas.setLocation(20, 20);//www . j a va  2  s. com
    shell.open();
    shell.setSize(200, 220);

    GC gc = new GC(canvas);
    gc.drawRectangle(10, 10, 40, 45);
    gc.drawOval(65, 10, 30, 35);
    gc.drawLine(130, 10, 90, 80);
    gc.drawPolygon(new int[] { 20, 70, 45, 90, 70, 70 });
    gc.drawPolyline(new int[] { 10, 120, 70, 100, 100, 130, 130, 75 });
    gc.dispose();

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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From source file:CanvasKeyEvent.java

public static void main(String[] args) {
    final Display display = new Display();
    Shell shell = new Shell(display);

    shell.setLayout(new RowLayout());
    final Canvas canvas = new Canvas(shell, SWT.NULL);
    canvas.setSize(500, 500);
    canvas.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));

    canvas.addKeyListener(new KeyListener() {
        public void keyPressed(KeyEvent e) {
            GC gc = new GC(canvas);
            Rectangle rect = canvas.getClientArea();
            gc.fillRectangle(rect.x, rect.y, rect.width, rect.height);

            Font font = new Font(display, "Arial", 32, SWT.BOLD);
            gc.setFont(font);/*w ww  . ja  v a2  s  .c om*/

            gc.drawString("" + e.character, 15, 10);

            gc.dispose();
            font.dispose();
        }

        public void keyReleased(KeyEvent e) {
        }
    });

    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
}

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From source file:FocusTraversal.java

private void init() {
    shell.setLayout(new RowLayout());

    Composite composite1 = new Composite(shell, SWT.BORDER);
    composite1.setLayout(new RowLayout());
    composite1.setBackground(display.getSystemColor(SWT.COLOR_WHITE));

    Button button1 = new Button(composite1, SWT.PUSH);
    button1.setText("Button1");

    List list = new List(composite1, SWT.MULTI | SWT.BORDER);
    list.setItems(new String[] { "Item-1", "Item-2", "Item-3" });

    Button radioButton1 = new Button(composite1, SWT.RADIO);
    radioButton1.setText("radio-1");
    Button radioButton2 = new Button(composite1, SWT.RADIO);
    radioButton2.setText("radio-2");

    Composite composite2 = new Composite(shell, SWT.BORDER);
    composite2.setLayout(new RowLayout());
    composite2.setBackground(display.getSystemColor(SWT.COLOR_GREEN));

    Button button2 = new Button(composite2, SWT.PUSH);
    button2.setText("Button2");

    final Canvas canvas = new Canvas(composite2, SWT.NULL);
    canvas.setSize(50, 50);
    canvas.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));

    Combo combo = new Combo(composite2, SWT.DROP_DOWN);
    combo.add("combo");
    combo.select(0);//from   www  .j a  va 2s  .c o m

    canvas.addKeyListener(new KeyListener() {
        public void keyPressed(KeyEvent e) {
            GC gc = new GC(canvas);
            // Erase background first. 
            Rectangle rect = canvas.getClientArea();
            gc.fillRectangle(rect.x, rect.y, rect.width, rect.height);

            Font font = new Font(display, "Arial", 32, SWT.BOLD);
            gc.setFont(font);

            gc.drawString("" + e.character, 15, 10);

            gc.dispose();
            font.dispose();
        }

        public void keyReleased(KeyEvent e) {
        }
    });

    canvas.addTraverseListener(new TraverseListener() {
        public void keyTraversed(TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS)
                e.doit = true;
        }
    });

    composite1.setTabList(new Control[] { button1, list });
    composite2.setTabList(new Control[] { button2, canvas, combo });

    shell.setTabList(new Control[] { composite2, composite1 });
}

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