Examples with LineStyleListener org.eclipse.swt.custom.LineStyleListener used on opensource projects

Example 1 with LineStyleListener

use of org.eclipse.swt.custom.LineStyleListener in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_custom_LineStyleListener method test_lineGetStyleLorg_eclipse_swt_custom_LineStyleEvent.

@Test
public void test_lineGetStyleLorg_eclipse_swt_custom_LineStyleEvent() {
    styledText.setText("0123456789");
    LineStyleListener listener = event -> {
        assertEquals(0, event.lineOffset);
        assertEquals("0123456789", event.lineText);
    };
    styledText.addLineStyleListener(listener);
    // force get line styles callback
    styledText.getLocationAtOffset(5);
    styledText.removeLineStyleListener(listener);
}

Example 2 with LineStyleListener

use of org.eclipse.swt.custom.LineStyleListener in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_custom_StyledText method rtfCopy.

/**
 * Regression test for bug 19985
 */
protected void rtfCopy() {
    String lines = "Line0\nLine1\nLine2\nLine3\nLine4\nLine5";
    final int[] linesCalled = new int[] { 0 };
    LineStyleListener listener = event -> {
        Display display = Display.getDefault();
        Color red = display.getSystemColor(SWT.COLOR_RED);
        StyledText styledText = (StyledText) event.widget;
        int lineIndex = styledText.getLineAtOffset(event.lineOffset);
        int lineStart = event.lineOffset;
        int lineEnd = lineStart + event.lineText.length();
        StyleRange goodRange = new StyleRange(0, 1, red, red);
        event.styles = new StyleRange[2];
        switch(lineIndex % 6) {
            case 0:
                event.styles[0] = goodRange;
                event.styles[1] = new StyleRange(lineEnd, 1, red, red);
                linesCalled[0]++;
                break;
            case 1:
                event.styles[0] = goodRange;
                event.styles[1] = new StyleRange(lineEnd, -1, red, red);
                linesCalled[0]++;
                break;
            case 2:
                event.styles[0] = goodRange;
                event.styles[1] = new StyleRange(lineEnd - 1, -1, red, red);
                linesCalled[0]++;
                break;
            case 3:
                event.styles[0] = goodRange;
                event.styles[1] = new StyleRange(lineStart, -1, red, red);
                linesCalled[0]++;
                break;
            case 4:
                event.styles[0] = new StyleRange(lineStart, 1, red, red);
                event.styles[1] = new StyleRange(lineStart, -1, red, red);
                linesCalled[0]++;
                break;
            case 5:
                event.styles[0] = new StyleRange(lineEnd / 2, 1, red, red);
                event.styles[1] = new StyleRange(lineEnd / 2, -1, red, red);
                linesCalled[0]++;
                break;
        }
    };
    text.setText(lines);
    // cause StyledText to call the listener.
    text.setSelection(0, text.getCharCount());
    text.addLineStyleListener(listener);
    linesCalled[0] = 0;
    text.copy();
    assertTrue("not all lines tested for RTF copy", linesCalled[0] == text.getLineCount());
    Clipboard clipboard = new Clipboard(text.getDisplay());
    RTFTransfer rtfTranfer = RTFTransfer.getInstance();
    String clipboardText = (String) clipboard.getContents(rtfTranfer);
    assertTrue("RTF copy failed", clipboardText.length() > 0);
    clipboard.dispose();
    text.removeLineStyleListener(listener);
}

Example 3 with LineStyleListener

use of org.eclipse.swt.custom.LineStyleListener in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_custom_StyledText method test_addLineStyleListenerLorg_eclipse_swt_custom_LineStyleListener.

@Test
public void test_addLineStyleListenerLorg_eclipse_swt_custom_LineStyleListener() {
    String line = "Line1";
    boolean exceptionThrown = false;
    LineStyleListener listener = event -> listenerCalled = true;
    try {
        text.addLineStyleListener(null);
    } catch (IllegalArgumentException e) {
        exceptionThrown = true;
    }
    assertTrue("Expected exception not thrown", exceptionThrown);
    listenerCalled = false;
    text.setText(line);
    text.addLineStyleListener(listener);
    // cause StyledText to call the listener.
    text.setSelection(0, text.getCharCount());
    text.copy();
    assertTrue("Listener not called", listenerCalled);
    listenerCalled = false;
    text.removeLineStyleListener(listener);
    // cause StyledText to call the listener.
    text.setText(line);
    text.setSelection(0, text.getCharCount());
    text.copy();
    assertFalse("Listener not removed", listenerCalled);
}