в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:22:21Z

1 версия

Новая страница

== drawText(String string, int x, int y, int flags) ==



<source lang="java">

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
// Do some drawing
Rectangle rect = ((Canvas) e.widget).getBounds();
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_RED));
e.gc.drawFocus(5, 5, rect.width - 10, rect.height - 10);
e.gc.drawText("www.jexp.ru", 5, 50, SWT.DRAW_MNEMONIC | SWT.DRAW_DELIMITER
| SWT.DRAW_TAB | SWT.DRAW_TRANSPARENT);
}
});

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

</source>



== GC: drawFocus(int x, int y, int width, int height) ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
// Do some drawing
Rectangle rect = ((Canvas) e.widget).getBounds();
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_RED));
e.gc.drawFocus(5, 5, rect.width - 10, rect.height - 10);
e.gc.drawText("www.jexp.ru", 5, 50, SWT.DRAW_MNEMONIC | SWT.DRAW_DELIMITER
| SWT.DRAW_TAB | SWT.DRAW_TRANSPARENT);
}
});

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

</source>



== GC: drawImage(Image image, int x, int y) ==



<source lang="java">
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
final Image image = new Image(display, new MainClass().getClass().getResourceAsStream(
"swt.png"));
System.out.println(image.getImageData().scanlinePad);
image.getImageData().scanlinePad = 40;
System.out.println(image.getImageData().scanlinePad);
shell.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent event) {
event.gc.drawImage(image, 0, 0);
Rectangle rect = shell.getClientArea();
ImageData data = image.getImageData();
int srcX = data.width / 4;
int srcY = data.height / 4;
int srcWidth = data.width / 2;
int srcHeight = data.height / 2;
int destWidth = 2 * srcWidth;
int destHeight = 2 * srcHeight;
event.gc.drawImage(image, srcX, srcY, srcWidth, srcHeight, rect.width
- destWidth, rect.height - destHeight, destWidth, destHeight);
}
});
shell.setText("Draw Images");
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
image.dispose();
display.dispose();
}
}

</source>



== GC: drawLine(int x1, int y1, int x2, int y2) ==



<source lang="java">

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setLineWidth(10);
e.gc.drawLine(0, 0, 100, 100);
}
});

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

</source>



== GC: drawOval(int x, int y, int width, int height) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_BLACK));
e.gc.drawOval(100, 20, 100, 50);

}
});

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

</source>



== GC: drawPoint(int x, int y) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
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 halfY = (int) maxY / 2;
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_BLACK));
e.gc.drawLine(0, halfY, maxX, halfY);

for (int i = 0; i < maxX; i++) {
e.gc.drawPoint(i, getNormalizedSine(i, halfY, maxX));
}
}
int getNormalizedSine(int x, int halfY, int maxX) {
double piDouble = 2 * Math.PI;
double factor = piDouble / maxX;
return (int) (Math.sin(x * factor) * halfY + halfY);
}
});

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

</source>



== GC: drawPolygon(int[] pointArray) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
Canvas canvas = (Canvas) e.widget;
int x = canvas.getBounds().width;
int y = canvas.getBounds().height;
e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK));
int[] upper_left = { 0, 0, 200, 0, 0, 200};
int[] lower_right = { x, y, x, y - 200, x - 200, y};
e.gc.fillPolygon(upper_left);
e.gc.fillPolygon(lower_right);

}
});

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

</source>



== GC: drawRoundRectangle(int x, int y, int width, int height, int arcWidth, int arcHeight) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.drawRoundRectangle(10, 10, 200, 200, 30, 60);

}
});

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

</source>



== GC: drawText(String string, int x, int y) ==



<source lang="java">

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
// Do some drawing
Rectangle rect = ((Canvas) e.widget).getBounds();
e.gc.setForeground(e.display.getSystemColor(SWT.COLOR_RED));
e.gc.drawFocus(5, 5, rect.width - 10, rect.height - 10);
e.gc.drawText("www.jexp.ru", 5, 50);
}
});

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

</source>



== GC: fillArc(int x, int y, int width, int height, int startAngle, int endAngle) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
Canvas drawingCanvas = new Canvas(shell, SWT.NONE);
drawingCanvas.addPaintListener(new ArcExamplePaintListener());

shell.open();
while (!shell.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
d.dispose();
}
}
class ArcExamplePaintListener implements PaintListener {
public void paintControl(PaintEvent e) {
Canvas canvas = (Canvas) e.widget;
int x = canvas.getBounds().width;
int y = canvas.getBounds().height;
e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK));
e.gc.fillArc((x - 200) / 2, (y - 200) / 2, 200, 200, 0, 90);
}
}

</source>



== GC: setBackground(Color c) ==



<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 MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
Canvas drawingCanvas = new Canvas(shell, SWT.NONE);
drawingCanvas.addPaintListener(new ArcExamplePaintListener());

shell.open();
while (!shell.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
d.dispose();
}
}
class ArcExamplePaintListener implements PaintListener {
public void paintControl(PaintEvent e) {
Canvas canvas = (Canvas) e.widget;
int x = canvas.getBounds().width;
int y = canvas.getBounds().height;
e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_BLACK));
e.gc.fillArc((x - 200) / 2, (y - 200) / 2, 200, 200, 0, 90);
}
}

</source>



== GC: setFont(Font f) ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Font;
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 MainClass {
public static void main(String[] a) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setFont(new Font(display, "Helvetica", 18, SWT.NORMAL));
e.gc.drawText("www.jexp.ru", 0, 0);
}
});

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

</source>



== GC: setLineWidth(int w) ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
final Display d = new Display();
final Shell shell = new Shell(d);
shell.setSize(250, 200);
shell.setLayout(new FillLayout());
// Create a canvas
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.setLineWidth(10);
e.gc.drawLine(0, 0, 100, 100);
}
});

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

</source>

← Предыдущая	Версия 17:43, 31 мая 2010
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Java by API/org.eclipse.swt.graphics/GC - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия