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Add test for StyledText with fixed font metrics #1689

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Dec 20, 2024
Merged

Add test for StyledText with fixed font metrics #1689

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20 changes: 20 additions & 0 deletions ...tests/JUnit Tests/org/eclipse/swt/tests/junit/Test_org_eclipse_swt_custom_StyledText.java
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,8 @@
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.GlyphMetrics;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
Expand Down Expand Up @@ -5934,4 +5936,22 @@ public void test_rangeSelectionKeepsCaret() {
assertEquals("Selection does not start from caret", initialOffset, text.getSelection().x);
assertNotEquals("Selection is not left-to-right", text.getSelection().x, text.getCaretOffset());
}

@Test
public void test_bug1610_fixedLineHeightWithChangingToSmallerFont_noException() {
shell.setVisible(true);
shell.setLayout(new GridLayout(1, false));

GC gc = new GC(shell.getDisplay());
FontMetrics metrics = gc.getFontMetrics();
text.setFixedLineMetrics(metrics);

FontData fontData = text.getFont().getFontData()[0];
text.setText("");
int smallFontHeight = metrics.getAscent() + metrics.getDescent() - 4;
Font font = new Font(text.getDisplay(), fontData.getName(), smallFontHeight, fontData.getStyle());
text.setFont(font);
font.dispose();
gc.dispose();
}
}
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