[英]Rendering GUI of another class from calling its method in SWT?
我有兩個班級,一個是Helper。 在助手類中,我有一些按鈕和Text。 我想使用該類gui另一個類是Widget。 為此,我在Helper中有靜態方法。 我從Widget類調用此方法,但有些方法使我無法在Widget類中呈現Helper類gui。 如果我使用了錯誤的術語,請幫助我。 提前致謝。
這是我的完整代碼。
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class Helper extends Composite {
public Helper(Composite parent, int style) {
super(parent, style);
initGUI(this);
}
private void initGUI(Composite parent) {
parent.setLayout(new GridLayout(2, false));
parent.setLayoutData(new GridData(GridData.FILL));
Label label = new Label(parent, SWT.NONE);
label.setText("label:");
label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
Text text = new Text(parent, SWT.SINGLE | SWT.BORDER);
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
Button button = new Button(parent, SWT.PUSH);
button.setText("hi I am ");
button.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
Button btn = new Button(parent, SWT.PUSH);
btn.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
btn.setText("hello");
}
public static Composite show(Shell shell){
shell = new Shell();
Helper wid = new Helper(shell, SWT.NONE);
return wid;
}
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
new Helper(shell, SWT.NONE);
shell.open();
shell.setText("Helper");
shell.pack();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class Widget extends Composite {
public Widget(Composite parent, int style) {
super(parent, style);
initGUI(this);
}
private void initGUI(Composite parent) {
parent.setLayout(new GridLayout(3, false));
parent.setLayoutData(new GridData());
Text text = new Text(parent, SWT.SINGLE | SWT.BORDER);
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
Button button = new Button(parent, SWT.PUSH);
button.setText("not Helper");
button.setLayoutData(new GridData(GridData.FILL_HORIZONTAL,GridData.FILL_VERTICAL,true,true,1,1));
Composite comp=Helper.show(parent.getShell());
comp.setLayout(new GridLayout());
comp.setLayoutData(new GridData());
}
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout());
new Widget(shell, SWT.NONE);
shell.open();
shell.setText("New Widget");
shell.pack();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
您需要創建Helper類的對象,因為它擴展了復合材料,因此其行為類似於容器,並且可以調整或設置helper類的layout和layoutdata。
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