в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:18:15Z

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== Draw string and display newlines and tabs as nonprintable characters. ==



<source lang="java">
void drawString(String string, int x, int y)</source>



== Draw string and display newlines and tabs as nonprintable characters: isTransparent ==



<source lang="java">
void drawString(String string, int x, int y, boolean isTransparent)</source>



== Draw string and processing newlines and expanding tabs ==



<source lang="java">
void drawText(String text, int x, int y, int flags)</source>



== Draw string and process newlines and expanding tabs: drawText(String text, int x, int y) ==



<source lang="java">
void drawText(String text, int x, int y)</source>



== Draw string and process newlines and expanding tabs: drawText(String text, int x, int y, boolean isTransparent) ==



<source lang="java">
void drawText(String text, int x, int y, boolean isTransparent)</source>



== Get the extent of a string ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ControlEditor;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.rubo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class FontSizeString {
private static final String STRING = "www.jexp.ru";
private static final String[] SIZES = { "8", "10", "12", "14", "16", "18" };
private static Font font;
public static void main(String[] a) {
Display display = new Display();
final Shell shell = new Shell(display);
shell.setText("Extents");
final Canvas canvas = new Canvas(shell, SWT.NONE);
shell.addControlListener(new ControlAdapter() {
public void controlResized(ControlEvent event) {
canvas.setBounds(shell.getClientArea());
}
});
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent event) {
event.gc.setFont(font);
Point pt = event.gc.stringExtent(STRING);
System.out.println(pt);
}
});
// Create an editor to house the dropdown
ControlEditor editor = new ControlEditor(canvas);
// Create the combo and fill it
final Combo combo = new Combo(canvas, SWT.READ_ONLY);
for (int i = 0, n = SIZES.length; i < n; i++) {
combo.add(SIZES[i]);
}
// Set up the editor
editor.horizontalAlignment = SWT.CENTER;
editor.verticalAlignment = SWT.TOP;
Point size = combo.ruputeSize(SWT.DEFAULT, SWT.DEFAULT);
editor.minimumWidth = size.x;
editor.minimumHeight = size.y;
editor.setEditor(combo);
combo.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
if (font != null)
font.dispose();
font = new Font(shell.getDisplay(), "Helvetica", new Integer(combo.getText()).intValue(),
SWT.BOLD);
canvas.redraw();
}
});
// Select the first item in the combo
combo.select(0);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
if (font != null)
font.dispose();
display.dispose();
}
}</source>



== Measure a String ==



<source lang="java">
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MeasureString {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);

GC gc = new GC(shell);
Point size = gc.textExtent("Hellooooooooooooooooooooo");
System.out.println("Hello -> " + size);
shell.pack();
shell.open();

while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== String with new line and tab ==



<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 DrawStringLineTabSWT {
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.drawString("www.\njexp\t.ru", 5, 5);
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>

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Java Tutorial/SWT 2D Graphics/Draw String - История изменений

в 17:44, 31 мая 2010

Admin: 1 версия