Eclipse插件开发编辑器字体

Question

I am using Eclipse 3.7.0 for plugin development and I am using Xtext 2.9.2. My editor preferences isn't working correctly.

On windows 7, 8, 10 this happens:

.

• On 64 bit builds, I am not able to change editor font. Hitting the change button does nothing but change the mouse to the busy/sandclock for a second and then back again to normal.

  • The same 64 bit builds were tested on windows XP and everything works as it should.

• On 32 bit builds, everything works as expected and the windows font picker dialog appears.

This is how I create the preference page:

@Override
protected void createFieldEditors() {
  // Add show font preference
  fontField = new FontFieldEditor(JFaceResources.TEXT_FONT, EDIT_EDITOR_FONT_LABEL, getFieldEditorParent());
  addField(fontField);

  fontField.setPreferenceStore(getPreferenceStore());

  // initialize the font preference with the default resources font if not initialized
  String defaultFont = getPreferenceStore().getDefaultString(JFaceResources.TEXT_FONT);
  if(defaultFont.isEmpty()) {
     font= JFaceResources.getTextFont();
     if (font != null) {
        FontData[] data= font.getFontData();
        if (data != null && data.length > 0) {
           PreferenceConverter.setDefault(getPreferenceStore(), JFaceResources.TEXT_FONT, data[0]);
        }
     }
  }
}

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The .log file is empty and has nothing that is beneficial.

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While debugging, I went to org.eclipse.swt.widgets.FontDialog.java and found that this line always returns false without the dialog appearing. From what I understand this call should be blocking and will only return when the dialog is closed either by X, OK or Cancel buttons but it returns immediately with false.

/* Open the dialog */
boolean success = OS.ChooseFont (lpcf)

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I also tried something as minimal as this example and same thing happens.

Answer 1

Months passed and I figured out what was causing the issue.

Basically we have a JNI layer which loads some dll that requires MSVCR90.dll . This requires embedding MSVCR90.dll manifest into eclipse.exe used for our RCP , this is done using mt.exe provided by Microsoft Visual Studio .

While building I accidentally didn't embed the MSVCR90.dll manifest, this resulted into the error during loading the dll which says that MSVCR90.dll is missing. I however noticed that the treeview styling looked correct.

This was also the answer to my other question Eclipse RCP Jface/SWT TreeViewer on Windows 10 . The manifest also affected the UI look and feel treeviews and progressbars didn't look like the ones provided by the OS .