/*******************************************************************************
* Copyright (c) 2000, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* istvan@benedek-home.de
* - 103706 [formatter] indent empty lines
*******************************************************************************/
package org.eclipse.jdt.internal.ui.preferences.formatter;
import java.util.Map;
import java.util.Observable;
import java.util.Observer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;
public class IndentationTabPage extends FormatterTabPage {
private final String PREVIEW=
createPreviewHeader(FormatterMessages.IndentationTabPage_preview_header) +
"class Example {" + //$NON-NLS-1$
" int [] myArray= {1,2,3,4,5,6};" + //$NON-NLS-1$
" int theInt= 1;" + //$NON-NLS-1$
" String someString= \"Hello\";" + //$NON-NLS-1$
" double aDouble= 3.0;" + //$NON-NLS-1$
" void foo(int a, int b, int c, int d, int e, int f) {" + //$NON-NLS-1$
" switch(a) {" + //$NON-NLS-1$
" case 0: " + //$NON-NLS-1$
" Other.doFoo();" + //$NON-NLS-1$
" break;" + //$NON-NLS-1$
" default:" + //$NON-NLS-1$
" Other.doBaz();" + //$NON-NLS-1$
" }" + //$NON-NLS-1$
" }" + //$NON-NLS-1$
" void bar(List v) {" + //$NON-NLS-1$
" for (int i= 0; i < 10; i++) {" + //$NON-NLS-1$
" v.add(new Integer(i));" + //$NON-NLS-1$
" }" + //$NON-NLS-1$
" }" + //$NON-NLS-1$
"}" + //$NON-NLS-1$
"\n" + //$NON-NLS-1$
"enum MyEnum {" + //$NON-NLS-1$
" UNDEFINED(0) {" + //$NON-NLS-1$
" void foo() {}" + //$NON-NLS-1$
" }" + //$NON-NLS-1$
"}" + //$NON-NLS-1$
"@interface MyAnnotation {" + //$NON-NLS-1$
" int count() default 1;" + //$NON-NLS-1$
"}";//$NON-NLS-1$
private CompilationUnitPreview fPreview;
private String fOldTabChar= null;
public IndentationTabPage(ModifyDialog modifyDialog, Map workingValues) {
super(modifyDialog, workingValues);
}
protected void doCreatePreferences(Composite composite, int numColumns) {
final Group generalGroup= createGroup(numColumns, composite, FormatterMessages.IndentationTabPage_general_group_title);
final String[] tabPolicyValues= new String[] {JavaCore.SPACE, JavaCore.TAB, DefaultCodeFormatterConstants.MIXED};
final String[] tabPolicyLabels= new String[] {
FormatterMessages.IndentationTabPage_general_group_option_tab_policy_SPACE,
FormatterMessages.IndentationTabPage_general_group_option_tab_policy_TAB,
FormatterMessages.IndentationTabPage_general_group_option_tab_policy_MIXED
};
final ComboPreference tabPolicy= createComboPref(generalGroup, numColumns, FormatterMessages.IndentationTabPage_general_group_option_tab_policy, DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, tabPolicyValues, tabPolicyLabels);
final CheckboxPreference onlyForLeading= createCheckboxPref(generalGroup, numColumns, FormatterMessages.IndentationTabPage_use_tabs_only_for_leading_indentations, DefaultCodeFormatterConstants.FORMATTER_USE_TABS_ONLY_FOR_LEADING_INDENTATIONS, FALSE_TRUE);
final NumberPreference indentSize= createNumberPref(generalGroup, numColumns, FormatterMessages.IndentationTabPage_general_group_option_indent_size, DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, 0, 32);
final NumberPreference tabSize= createNumberPref(generalGroup, numColumns, FormatterMessages.IndentationTabPage_general_group_option_tab_size, DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, 0, 32);
String tabchar= (String) fWorkingValues.get(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR);
updateTabPreferences(tabchar, tabSize, indentSize, onlyForLeading);
tabPolicy.addObserver(new Observer() {
public void update(Observable o, Object arg) {
updateTabPreferences((String) arg, tabSize, indentSize, onlyForLeading);
}
});
tabSize.addObserver(new Observer() {
public void update(Observable o, Object arg) {
indentSize.updateWidget();
}
});
final Group typeMemberGroup= createGroup(numColumns, composite, FormatterMessages.IndentationTabPage_field_alignment_group_title);
createCheckboxPref(typeMemberGroup, numColumns, FormatterMessages.IndentationTabPage_field_alignment_group_align_fields_in_columns, DefaultCodeFormatterConstants.FORMATTER_ALIGN_TYPE_MEMBERS_ON_COLUMNS, FALSE_TRUE);
final Group classGroup = createGroup(numColumns, composite, FormatterMessages.IndentationTabPage_indent_group_title);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_class_group_option_indent_declarations_within_class_body, DefaultCodeFormatterConstants.FORMATTER_INDENT_BODY_DECLARATIONS_COMPARE_TO_TYPE_HEADER, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_class_group_option_indent_declarations_within_enum_decl, DefaultCodeFormatterConstants.FORMATTER_INDENT_BODY_DECLARATIONS_COMPARE_TO_ENUM_DECLARATION_HEADER, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_class_group_option_indent_declarations_within_enum_const, DefaultCodeFormatterConstants.FORMATTER_INDENT_BODY_DECLARATIONS_COMPARE_TO_ENUM_CONSTANT_HEADER, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_class_group_option_indent_declarations_within_annot_decl, DefaultCodeFormatterConstants.FORMATTER_INDENT_BODY_DECLARATIONS_COMPARE_TO_ANNOTATION_DECLARATION_HEADER, FALSE_TRUE);
// final Group blockGroup= createGroup(numColumns, composite, FormatterMessages.getString("IndentationTabPage.block_group.title")); //$NON-NLS-1$
//createCheckboxPref(classGroup, numColumns, FormatterMessages.getString("IndentationTabPage.block_group.option.indent_statements_within_blocks_and_methods"), DefaultCodeFormatterConstants.FORMATTER_INDENT_BLOCK_STATEMENTS, FALSE_TRUE); //$NON-NLS-1$
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_block_group_option_indent_statements_compare_to_body, DefaultCodeFormatterConstants.FORMATTER_INDENT_STATEMENTS_COMPARE_TO_BODY, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_block_group_option_indent_statements_compare_to_block, DefaultCodeFormatterConstants.FORMATTER_INDENT_STATEMENTS_COMPARE_TO_BLOCK, FALSE_TRUE);
// final Group switchGroup= createGroup(numColumns, composite, FormatterMessages.getString("IndentationTabPage.switch_group.title")); //$NON-NLS-1$
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_switch_group_option_indent_statements_within_switch_body, DefaultCodeFormatterConstants.FORMATTER_INDENT_SWITCHSTATEMENTS_COMPARE_TO_SWITCH, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_switch_group_option_indent_statements_within_case_body, DefaultCodeFormatterConstants.FORMATTER_INDENT_SWITCHSTATEMENTS_COMPARE_TO_CASES, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_switch_group_option_indent_break_statements, DefaultCodeFormatterConstants.FORMATTER_INDENT_BREAKS_COMPARE_TO_CASES, FALSE_TRUE);
createCheckboxPref(classGroup, numColumns, FormatterMessages.IndentationTabPage_indent_empty_lines, DefaultCodeFormatterConstants.FORMATTER_INDENT_EMPTY_LINES, FALSE_TRUE);
}
public void initializePage() {
fPreview.setPreviewText(PREVIEW);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.ui.preferences.formatter.ModifyDialogTabPage#doCreateJavaPreview(org.eclipse.swt.widgets.Composite)
*/
protected JavaPreview doCreateJavaPreview(Composite parent) {
fPreview= new CompilationUnitPreview(fWorkingValues, parent);
return fPreview;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.ui.preferences.formatter.ModifyDialogTabPage#doUpdatePreview()
*/
protected void doUpdatePreview() {
super.doUpdatePreview();
fPreview.update();
}
private void updateTabPreferences(String tabPolicy, NumberPreference tabPreference, NumberPreference indentPreference, CheckboxPreference onlyForLeading) {
/*
* If the tab-char is SPACE (or TAB), INDENTATION_SIZE
* preference is not used by the core formatter. We piggy back the
* visual tab length setting in that preference in that case. If the
* user selects MIXED, we use the previous TAB_SIZE preference as the
* new INDENTATION_SIZE (as this is what it really is) and set the
* visual tab size to the value piggy backed in the INDENTATION_SIZE
* preference. See also CodeFormatterUtil.
*/
if (DefaultCodeFormatterConstants.MIXED.equals(tabPolicy)) {
if (JavaCore.SPACE.equals(fOldTabChar) || JavaCore.TAB.equals(fOldTabChar))
swapTabValues();
tabPreference.setEnabled(true);
tabPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
indentPreference.setEnabled(true);
indentPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE);
onlyForLeading.setEnabled(true);
} else if (JavaCore.SPACE.equals(tabPolicy)) {
if (DefaultCodeFormatterConstants.MIXED.equals(fOldTabChar))
swapTabValues();
tabPreference.setEnabled(true);
tabPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE);
indentPreference.setEnabled(true);
indentPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
onlyForLeading.setEnabled(false);
} else if (JavaCore.TAB.equals(tabPolicy)) {
if (DefaultCodeFormatterConstants.MIXED.equals(fOldTabChar))
swapTabValues();
tabPreference.setEnabled(true);
tabPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
indentPreference.setEnabled(false);
indentPreference.setKey(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
onlyForLeading.setEnabled(true);
} else {
Assert.isTrue(false);
}
fOldTabChar= tabPolicy;
}
private void swapTabValues() {
Object tabSize= fWorkingValues.get(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
Object indentSize= fWorkingValues.get(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE);
fWorkingValues.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, indentSize);
fWorkingValues.put(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE, tabSize);
}
}