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package com.jetbrains.python.edu.course;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.colors.EditorColors;
import com.intellij.openapi.editor.colors.EditorColorsManager;
import com.intellij.openapi.editor.markup.HighlighterLayer;
import com.intellij.openapi.editor.markup.HighlighterTargetArea;
import com.intellij.openapi.editor.markup.RangeHighlighter;
import com.intellij.openapi.editor.markup.TextAttributes;
import com.intellij.ui.JBColor;
import org.jetbrains.annotations.NotNull;
/**
* Implementation of windows which user should type in
*/
public class TaskWindow implements Comparable, Stateful {
public int line = 0;
public int start = 0;
public String hint = "";
public String possibleAnswer = "";
public int length = 0;
private TaskFile myTaskFile;
public int myIndex = -1;
public int myInitialLine = -1;
public int myInitialStart = -1;
public int myInitialLength = -1;
public StudyStatus myStatus = StudyStatus.Unchecked;
public StudyStatus getStatus() {
return myStatus;
}
public void setStatus(StudyStatus status, StudyStatus oldStatus) {
myStatus = status;
}
public void setIndex(int index) {
myIndex = index;
}
public int getLength() {
return length;
}
public void setLength(int length) {
this.length = length;
}
public int getStart() {
return start;
}
public void setStart(int start) {
this.start = start;
}
public void setLine(int line) {
this.line = line;
}
public int getLine() {
return line;
}
/**
* Draw task window with color according to its status
*/
public void draw(@NotNull final Editor editor, boolean drawSelection, boolean moveCaret) {
Document document = editor.getDocument();
if (!isValid(document)) {
return;
}
TextAttributes defaultTestAttributes =
EditorColorsManager.getInstance().getGlobalScheme().getAttributes(EditorColors.LIVE_TEMPLATE_ATTRIBUTES);
JBColor color = getColor();
int startOffset = document.getLineStartOffset(line) + start;
RangeHighlighter
rh = editor.getMarkupModel().addRangeHighlighter(startOffset, startOffset + length, HighlighterLayer.LAST + 1,
new TextAttributes(defaultTestAttributes.getForegroundColor(),
defaultTestAttributes.getBackgroundColor(), color,
defaultTestAttributes.getEffectType(),
defaultTestAttributes.getFontType()),
HighlighterTargetArea.EXACT_RANGE);
if (drawSelection) {
editor.getSelectionModel().setSelection(startOffset, startOffset + length);
}
if (moveCaret) {
editor.getCaretModel().moveToOffset(startOffset);
}
rh.setGreedyToLeft(true);
rh.setGreedyToRight(true);
}
public boolean isValid(@NotNull final Document document) {
boolean isLineValid = line < document.getLineCount() && line >= 0;
if (!isLineValid) return false;
boolean isStartValid = start >= 0 && start < document.getLineEndOffset(line);
boolean isLengthValid = (getRealStartOffset(document) + length) <= document.getTextLength();
return isLengthValid && isStartValid;
}
private JBColor getColor() {
if (myStatus == StudyStatus.Solved) {
return JBColor.GREEN;
}
if (myStatus == StudyStatus.Failed) {
return JBColor.RED;
}
return JBColor.BLUE;
}
public int getRealStartOffset(@NotNull final Document document) {
return document.getLineStartOffset(line) + start;
}
/**
* Initializes window
*
* @param file task file which window belongs to
*/
public void init(final TaskFile file, boolean isRestarted) {
if (!isRestarted) {
myInitialLine = line;
myInitialLength = length;
myInitialStart = start;
}
myTaskFile = file;
}
public TaskFile getTaskFile() {
return myTaskFile;
}
@Override
public int compareTo(@NotNull Object o) {
TaskWindow taskWindow = (TaskWindow)o;
if (taskWindow.getTaskFile() != myTaskFile) {
throw new ClassCastException();
}
int lineDiff = line - taskWindow.line;
if (lineDiff == 0) {
return start - taskWindow.start;
}
return lineDiff;
}
/**
* Returns window to its initial state
*/
public void reset() {
myStatus = StudyStatus.Unchecked;
line = myInitialLine;
start = myInitialStart;
length = myInitialLength;
}
public String getHint() {
return hint;
}
public String getPossibleAnswer() {
return possibleAnswer;
}
public void setPossibleAnswer(String possibleAnswer) {
this.possibleAnswer = possibleAnswer;
}
public int getIndex() {
return myIndex;
}
}
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