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Add clue columns after each poem for #69.
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86 changes: 86 additions & 0 deletions
86
core/src/com/github/donkirkby/vograbulary/poemsorting/PoemDisplay.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package com.github.donkirkby.vograbulary.poemsorting; | ||
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| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
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| public class PoemDisplay { | ||
| private int width; | ||
| private int clueLineCount; | ||
| private List<String> bodyLines = new ArrayList<String>(); | ||
| private List<String> clueColumns = new ArrayList<String>(); | ||
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| public PoemDisplay(Poem poem, int width) { | ||
| List<String> poemLines = new ArrayList<String>(); | ||
| Poem sortedPoem = poem.sortWords(); | ||
| final int poemLineCount = poem.getLines().size(); | ||
| for (int poemLineIndex = 0; poemLineIndex < poemLineCount; poemLineIndex++) { | ||
| String poemLine = poem.getLines().get(poemLineIndex); | ||
| String sortedLine = sortedPoem.getLines().get(poemLineIndex); | ||
| String indent = ""; | ||
| int start = 0; | ||
| int lastBreak = 0; | ||
| for (int charIndex = 0; charIndex < poemLine.length(); charIndex++) { | ||
| boolean shouldAdd; | ||
| if (charIndex == poemLine.length() - 1) { | ||
| shouldAdd = true; | ||
| lastBreak = poemLine.length(); | ||
| } | ||
| else { | ||
| if (poemLine.charAt(charIndex) == ' ') { | ||
| lastBreak = charIndex; | ||
| } | ||
| shouldAdd = charIndex - start >= width; | ||
| } | ||
| if (shouldAdd) { | ||
| poemLines.add(indent + poemLine.substring(start, lastBreak)); | ||
| bodyLines.add(indent + sortedLine.substring(start, lastBreak)); | ||
| start = lastBreak+1; | ||
| indent = " "; | ||
| } | ||
| } | ||
| } | ||
| this.width = 0; | ||
| for (String line : bodyLines) { | ||
| this.width = Math.max(this.width, line.length()); | ||
| } | ||
| char column[] = new char[bodyLines.size()]; | ||
| for (int charIndex = 0; charIndex < this.width; charIndex++) { | ||
| int letterCount = 0; | ||
| for (int lineIndex = 0; lineIndex < poemLines.size(); lineIndex++) { | ||
| final String line = poemLines.get(lineIndex); | ||
| char c = charIndex < line.length() | ||
| ? Character.toLowerCase(line.charAt(charIndex)) | ||
| : ' '; | ||
| if ('a' <= c && c <= 'z') { | ||
| column[letterCount++] = c; | ||
| } | ||
| } | ||
| Arrays.sort(column, 0, letterCount); | ||
| clueColumns.add(new String(column, 0, letterCount)); | ||
| clueLineCount = Math.max(clueLineCount, letterCount); | ||
| } | ||
| } | ||
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| public int getWidth() { | ||
| return width; | ||
| } | ||
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| public int getBodyLineCount() { | ||
| return bodyLines.size(); | ||
| } | ||
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| public char getBody(int lineIndex, int charIndex) { | ||
| String line = bodyLines.get(lineIndex); | ||
| return charIndex < line.length() ? line.charAt(charIndex) : ' '; | ||
| } | ||
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| public int getClueLineCount() { | ||
| return clueLineCount; | ||
| } | ||
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| public char getClue(int lineIndex, int charIndex) { | ||
| String line = charIndex < clueColumns.size() ? clueColumns.get(charIndex) : ""; | ||
| return lineIndex < line.length() ? line.charAt(lineIndex) : ' '; | ||
| } | ||
| } |
63 changes: 63 additions & 0 deletions
63
vograbulary-test/src/com/github/donkirkby/vograbulary/poemsorting/PoemDisplayTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package com.github.donkirkby.vograbulary.poemsorting; | ||
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| import static org.hamcrest.Matchers.*; | ||
| import static org.junit.Assert.*; | ||
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| import java.util.List; | ||
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| import org.junit.Test; | ||
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| public class PoemDisplayTest { | ||
| @Test | ||
| public void display() { | ||
| List<Poem> poems = Poem.load( | ||
| "Guess I'm a poet,", | ||
| "I didn't know it."); | ||
| int width = 15; | ||
| String expectedDisplay = | ||
| "egssu i'm a \n" + | ||
| " eopt, \n" + | ||
| "i ddin't know\n" + | ||
| " it. \n" + | ||
| "gudidnetmkaow\n" + | ||
| "i esioit n \n" + | ||
| " pt \n" + | ||
| " s \n"; | ||
| PoemDisplay display = new PoemDisplay(poems.get(0), width); | ||
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| assertThat("display", buildTextDisplay(display), is(expectedDisplay)); | ||
| } | ||
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| @Test | ||
| public void displayBlankColumn() { | ||
| List<Poem> poems = Poem.load( | ||
| "Guess I'm a poet,", | ||
| "I did not know it."); | ||
| int width = 20; | ||
| String expectedDisplay = | ||
| "egssu i'm a eopt, \n" + | ||
| "i ddi not know it.\n" + | ||
| "gudid iom anooeit \n" + | ||
| "i ess n t k pw t \n"; | ||
| PoemDisplay display = new PoemDisplay(poems.get(0), width); | ||
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| assertThat("display", buildTextDisplay(display), is(expectedDisplay)); | ||
| } | ||
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| private String buildTextDisplay(PoemDisplay display) { | ||
| StringBuilder builder = new StringBuilder(); | ||
| for (int i = 0; i < display.getBodyLineCount(); i++) { | ||
| for (int j = 0; j < display.getWidth(); j++) { | ||
| builder.append(display.getBody(i, j)); | ||
| } | ||
| builder.append('\n'); | ||
| } | ||
| for (int i = 0; i < display.getClueLineCount(); i++) { | ||
| for (int j = 0; j < display.getWidth(); j++) { | ||
| builder.append(display.getClue(i, j)); | ||
| } | ||
| builder.append('\n'); | ||
| } | ||
| return builder.toString(); | ||
| } | ||
| } |