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CsvStructureViewElement.java
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CsvStructureViewElement.java
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package net.seesharpsoft.intellij.plugins.csv.structureview;
import com.intellij.ide.structureView.StructureViewTreeElement;
import com.intellij.ide.util.treeView.smartTree.SortableTreeElement;
import com.intellij.ide.util.treeView.smartTree.TreeElement;
import com.intellij.navigation.ItemPresentation;
import com.intellij.navigation.NavigationItem;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiNamedElement;
import net.seesharpsoft.intellij.plugins.csv.CsvColumnInfo;
import net.seesharpsoft.intellij.plugins.csv.CsvColumnInfoMap;
import net.seesharpsoft.intellij.plugins.csv.CsvHelper;
import net.seesharpsoft.intellij.plugins.csv.CsvIconProvider;
import net.seesharpsoft.intellij.plugins.csv.editor.CsvEditorSettingsExternalizable;
import net.seesharpsoft.intellij.plugins.csv.psi.CsvFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import static com.intellij.openapi.util.Iconable.ICON_FLAG_VISIBILITY;
public abstract class CsvStructureViewElement implements StructureViewTreeElement, SortableTreeElement, ItemPresentation {
protected PsiElement myElement;
public CsvStructureViewElement(PsiElement element) {
this.myElement = element;
}
@Override
public Object getValue() {
return myElement;
}
@Override
public void navigate(boolean requestFocus) {
if (myElement instanceof NavigationItem) {
((NavigationItem) myElement).navigate(requestFocus);
}
}
@Override
public boolean canNavigate() {
return myElement instanceof NavigationItem &&
((NavigationItem) myElement).canNavigate();
}
@Override
public boolean canNavigateToSource() {
return myElement instanceof NavigationItem &&
((NavigationItem) myElement).canNavigateToSource();
}
@Override
public String getAlphaSortKey() {
return myElement instanceof PsiNamedElement ? ((PsiNamedElement) myElement).getName() : null;
}
@Override
public ItemPresentation getPresentation() {
ItemPresentation presentation = myElement instanceof NavigationItem ?
((NavigationItem) myElement).getPresentation() : this;
return presentation == null ? this : presentation;
}
@Nullable
@Override
public String getPresentableText() {
return myElement.getText();
}
@Nullable
@Override
public String getLocationString() {
return null;
}
@Nullable
@Override
public Icon getIcon(boolean unused) {
return myElement.getIcon(ICON_FLAG_VISIBILITY);
}
public static class File extends CsvStructureViewElement {
public File(PsiFile element) {
super(element);
}
protected List<PsiElement> getElements(CsvColumnInfo<PsiElement> columnInfo, int maxRowNumbers) {
return columnInfo.getElements().stream().limit(maxRowNumbers).collect(Collectors.toList());
}
@Override
public TreeElement[] getChildren() {
if (myElement instanceof CsvFile) {
CsvFile csvFile = (CsvFile) myElement;
CsvColumnInfoMap csvColumnInfoMap = csvFile.getMyColumnInfoMap();
int maxRowNumbers = csvColumnInfoMap.getColumnInfo(0).getSize();
if (csvColumnInfoMap.hasEmptyLastLine() && CsvEditorSettingsExternalizable.getInstance().isFileEndLineBreak()) {
--maxRowNumbers;
}
Map<Integer, CsvColumnInfo<PsiElement>> columnInfoMap = csvColumnInfoMap.getColumnInfos();
TreeElement[] children = new TreeElement[columnInfoMap.size()];
for (Map.Entry<Integer, CsvColumnInfo<PsiElement>> entry : columnInfoMap.entrySet()) {
CsvColumnInfo<PsiElement> columnInfo = entry.getValue();
PsiElement psiElement = columnInfo.getHeaderElement();
if (psiElement == null) {
psiElement = CsvHelper.createEmptyCsvField(myElement.getProject());
}
children[entry.getKey()] = new Header(psiElement, getElements(columnInfo, maxRowNumbers));
}
return children;
} else {
return EMPTY_ARRAY;
}
}
}
public static class Header extends CsvStructureViewElement {
private List<PsiElement> myElements;
public Header(PsiElement element, List<PsiElement> elements) {
super(element);
this.myElements = elements;
}
private int getNumberOfChildren() {
return Math.max(0, this.myElements.size() - 1);
}
@NotNull
@Override
public TreeElement[] getChildren() {
int rowIndex = 0;
TreeElement[] children = new TreeElement[getNumberOfChildren()];
for (PsiElement element : this.myElements) {
if (rowIndex > 0) {
children[rowIndex - 1] = new Field(element == null ? CsvHelper.createEmptyCsvField(this.myElement.getProject()) : element, rowIndex - 1);
}
++rowIndex;
}
return children;
}
@Nullable
@Override
public String getLocationString() {
return String.format("Header (%s entries)", getNumberOfChildren());
}
@Nullable
@Override
public Icon getIcon(boolean unused) {
return CsvIconProvider.HEADER;
}
}
public static class Field extends CsvStructureViewElement {
private int myRowIndex;
public Field(PsiElement element, int rowIndex) {
super(element);
this.myRowIndex = rowIndex;
}
@NotNull
@Override
public TreeElement[] getChildren() {
return EMPTY_ARRAY;
}
@Nullable
@Override
public String getLocationString() {
return String.format("(%s)", myRowIndex + 1);
}
}
}