в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:18:13Z

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== Draw a thick line ==



<source lang="java">
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ThickLinkDraw {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.open();
GC gc = new GC(shell);
gc.setLineWidth(4);
gc.drawRectangle(20, 20, 100, 100);
gc.dispose();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Drawing multiple lines ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class DrawMultipleLine {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Canvas Example");
shell.setLayout(new FillLayout());
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setLineWidth(4);
int[] points = { 0, 0, 100, 0, 0, 100, 100, 100, 0, 200};
e.gc.drawPolyline(points);
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Drawing Points, Lines and set line width ==

<p>drawLine() takes four integers that define two Cartesian points,
relative to the upper-left corner of the component.</p>



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class DrawPointLineWidth {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Canvas Example");
shell.setLayout(new FillLayout());
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
Canvas canvas = (Canvas) e.widget;
int maxX = canvas.getSize().x;
int maxY = canvas.getSize().y;
int halfX = (int) maxX/2;
int halfY = (int) maxY/2;
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_BLUE));
e.gc.setLineWidth(10);
e.gc.drawLine(halfX, 0, halfX, maxY);
e.gc.drawLine(0, halfY, maxX, halfY);
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Draw line ==



<source lang="java">
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class DrawLine {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.open();
GC gc = new GC(shell);
gc.drawLine(0, 0, 19, 19);
gc.drawLine(19, 0, 0, 19);
gc.dispose();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Line Join Style: JOIN_BEVEL, JOIN_MITER, JOIN_ROUND ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
public class LineJoinStyleBevelMiterRound {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.addListener(SWT.Paint, new Listener() {
public void handleEvent(Event event) {
int x = 20, y = 20, w = 120, h = 60;
GC gc = event.gc;
gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
gc.setLineWidth(10);

int[] joins = { SWT.JOIN_BEVEL, SWT.JOIN_MITER, SWT.JOIN_ROUND };
for (int i = 0; i < joins.length; i++) {
gc.setLineJoin(joins[i]);
gc.drawPolygon(new int[] { x, y, x + w / 2, y + h, x + w, y });
y += h + 20;
}
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Setting Line caps ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
public class LineCapsSetting {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.addListener(SWT.Paint, new Listener() {
public void handleEvent(Event event) {
int x = 20, y = 20, w = 120, h = 60;
GC gc = event.gc;
gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
gc.setLineWidth(10);
int[] caps = { SWT.CAP_FLAT, SWT.CAP_ROUND, SWT.CAP_SQUARE };
for (int i = 0; i < caps.length; i++) {
gc.setLineCap(caps[i]);
gc.drawLine(x, y, x + w, y);
y += 20;
}
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>

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в 17:44, 31 мая 2010

Admin: 1 версия