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New labels/axis settings

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This commit is contained in:
Andrea Cavalli 2022-09-15 18:32:48 +02:00
parent 817a70a938
commit bccf1f5823
7 changed files with 126 additions and 64 deletions
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2
pom.xml
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@ -6,7 +6,7 @@
<groupId>it.cavallium</groupId>
<artifactId>jlinegraph</artifactId>
<version>1.0-SNAPSHOT</version>
<version>1.1-SNAPSHOT</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>

7
src/main/java/it/cavallium/jlinegraph/AWTGraphExample.java
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@ -95,12 +95,13 @@ public class AWTGraphExample {
new SeriesStyle(new Color(0.5f, 1f, 0.5f, 1f), 0, 1, 0.3, 1d),
new SeriesStyle(new Color(1f, 1f, 0.7f, 1f), 1.5, 2, 0, 1d)
),
new GraphAxisStyle("X axis", true, "%.2fs"::formatted),
new GraphAxisStyle("Y axis", true, "%.2fm"::formatted),
new GraphAxisStyle("X axis", false, AxisMode.SHOW_WITH_VALUES, "%.2fs"::formatted),
new GraphAxisStyle("Y axis", false, AxisMode.SHOW_WITH_VALUES, "%.2fm"::formatted),
GRAPH_COLOR,
new GraphFonts(10f, 18f, 12f, 12f),
2f,
true
true,
1
));
var r = new AWTGraphRenderer();
r.renderGraph(g, new RasterSize(w, h)).drawTo(g2d);

86
src/main/java/it/cavallium/jlinegraph/AWTGraphRenderer.java
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@ -48,25 +48,31 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
var valuesFontMetrics = graphics2D.getFontMetrics(valuesFont);
var axisNameFontMetrics = graphics2D.getFontMetrics(axisNameFont);
var paddingMultiplier = graph.style().paddingMultiplier();
var graphBounds = graph.data().bounds();
var x = graph.style().x();
var y = graph.style().y();
var padding = defaultFontMetrics.getHeight() * paddingMultiplier;
var scaleX = new NiceScale(graphBounds.minX(), graphBounds.maxX());
scaleX.setMaxTicks(20);
var scaleY = new NiceScale(graphBounds.minY(), graphBounds.maxY());
scaleY.setMaxTicks(20);
var topPadding = defaultFontMetrics.getHeight() + valuesFontMetrics.getHeight() / 2d;
var leftPadding = defaultFontMetrics.getHeight();
var rightPadding = defaultFontMetrics.getHeight()
+ valuesFontMetrics.stringWidth(y.valueFormat().apply(graphBounds.maxX())) / 2d;
var bottomPadding = defaultFontMetrics.getHeight();
var xValueLineLength = valuesFontMetrics.getHeight();
var yValueLineLength = valuesFontMetrics.getHeight();
var xValuesHeight = valuesFontMetrics.getHeight();
var xValuesToXAxisNamePadding = (x.show() ? valuesFontMetrics.getHeight() : 0);
var xAxisNameHeight = (x.show() ? axisNameFontMetrics.getHeight() : 0);
var yAxisNameWidth = (y.show() ? axisNameFontMetrics.getHeight() : 0);
var yValuesToYAxisNamePadding = (y.show() ? valuesFontMetrics.getHeight() : 0);
var halfMaxXLabelWidth = x.mode().showLabels()
? (valuesFontMetrics.stringWidth(y.valueFormat().apply(graphBounds.maxX())) / 2d) : 0;
var halfMaxYLabelHeight = (y.mode().showLabels() ? valuesFontMetrics.getHeight() / 2d : 0);
var topPadding = padding + halfMaxYLabelHeight;
var leftPadding = padding
+ ((y.mode() == AxisMode.HIDE && !y.showName()) ? halfMaxXLabelWidth : 0);
var rightPadding = padding + (x.mode().showLabels() ? halfMaxXLabelWidth : 0);
var bottomPadding = padding
+ ((x.mode() == AxisMode.HIDE && !x.showName()) ? halfMaxYLabelHeight : 0);
var xValueLineLength = x.mode().showRuler() ? valuesFontMetrics.getHeight() : 0;
var yValueLineLength = y.mode().showRuler() ? valuesFontMetrics.getHeight() : 0;
var xValuesHeight = x.mode().showLabels() ? valuesFontMetrics.getHeight() : 0;
var xValuesToXAxisNamePadding = (x.showName() ? valuesFontMetrics.getHeight() / 2 : 0);
var xAxisNameHeight = (x.showName() ? axisNameFontMetrics.getHeight() : 0);
var yAxisNameWidth = (y.showName() ? axisNameFontMetrics.getHeight() : 0);
var yValuesToYAxisNamePadding = (y.showName() ? valuesFontMetrics.getHeight() / 2 : 0);
var graphHeight
// Start with total height
@ -87,7 +93,7 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
var xValueLineOffset = topPadding + graphHeight;
var yLabels = getYLabels(graph, graphHeight, valuesFontMetrics, scaleY);
RasterSize yLabelsAreaSize = computeYLabelsAreaSize(graphHeight, valuesFontMetrics, yLabels);
RasterSize yLabelsAreaSize = computeYLabelsAreaSize(y.mode(), graphHeight, valuesFontMetrics, yLabels);
var yValuesWidth = yLabelsAreaSize.width();
var yValueLineOffset = leftPadding + yAxisNameWidth + yValuesToYAxisNamePadding + yValuesWidth;
@ -129,9 +135,9 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
var xLabels = getXLabels(graph, graphWidth, valuesFontMetrics, scaleX);
RasterSize yAxisNameCenterOffset = new RasterSize(valuesFontMetrics.getHeight(), valuesFontMetrics.getHeight()
RasterSize yAxisNameCenterOffset = new RasterSize(leftPadding + valuesFontMetrics.getHeight() / 2d, valuesFontMetrics.getHeight()
// Add half of graph height
+ graphHeight / 2);
+ graphHeight / 2 + topPadding);
RasterSize yValuesOffset = new RasterSize(leftPadding
// Add y axis name "90deg height"
@ -182,11 +188,11 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
return;
}
renderGraphBorders(graphics2D, graph, graphOffset, graphSize, defaultStroke);
if (y.show()) {
renderGraphBorders(graphics2D, graph, graphOffset, graphSize, defaultStroke, totalSize);
if (y.showName()) {
renderYAxisName(graphics2D, graph, yAxisNameCenterOffset, axisNameFont, axisNameFontMetrics);
}
if (x.show()) {
if (x.showName()) {
renderXAxisName(graphics2D, graph, xAxisNameCenterOffset, axisNameFont, axisNameFontMetrics);
}
renderYAxisValueLabels(graphics2D,
@ -198,7 +204,9 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
yLabels,
yLabelsAreaSize,
yValuesOffset,
defaultStroke
defaultStroke,
y.mode().showRuler(),
y.mode().showLabels()
);
renderXAxisValueLabels(graphics2D,
graph,
@ -207,7 +215,9 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
xValueLineOffset,
xValueLineLength,
xLabels, xValuesOffset,
defaultStroke
defaultStroke,
x.mode().showRuler(),
x.mode().showLabels()
);
@ -615,11 +625,15 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
List<LabelWithOffset> yLabels,
RasterSize yLabelsAreaSize,
RasterSize yValuesOffset,
BasicStroke defaultStroke) {
BasicStroke defaultStroke,
boolean showRulerTicks,
boolean showRulerLabels) {
if ((yValueLineLength > 0 && showRulerTicks) || showRulerLabels) {
graphics2D.setFont(valuesFont);
graphics2D.setStroke(defaultStroke);
graphics2D.setColor(graph.style().colors().foreground().toColor());
yLabels.forEach(label -> {
if (showRulerTicks) {
var lineStartOffsetY = yValuesOffset.height() + label.rasterOffset();
var currentLineOffsetX = label.formattedText().isBlank() ? yValueLineLength / 3d : 0;
var currentLineLength = yValueLineLength + (label.formattedText().isBlank() ? -yValueLineLength / 3d : 0);
@ -628,13 +642,17 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
yValueLineOffset + currentLineOffsetX + currentLineLength,
lineStartOffsetY
));
}
if (showRulerLabels) {
graphics2D.fill(generateShapeFromText(graphics2D,
label.formattedText(),
yValuesOffset.width() + yLabelsAreaSize.width() - valuesFontMetrics.stringWidth(label.formattedText()),
yValuesOffset.height() + label.rasterOffset() + valuesFontMetrics.getHeight() / 2d - valuesFontMetrics.getDescent()
));
}
});
}
}
private static void renderXAxisName(Graphics2D graphics2D,
Graph graph,
@ -662,28 +680,44 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
int xValueLineLength,
List<LabelWithOffset> xLabels,
RasterSize xValuesOffset,
BasicStroke defaultStroke) {
BasicStroke defaultStroke,
boolean showRulerTicks,
boolean showRulerLabels) {
if ((xValueLineLength > 0 && showRulerTicks) || showRulerLabels) {
graphics2D.setFont(valuesFont);
graphics2D.setStroke(defaultStroke);
graphics2D.setColor(graph.style().colors().foreground().toColor());
xLabels.forEach(label -> {
var lineStartOffsetX = xValuesOffset.width() + label.rasterOffset();
if (showRulerTicks) {
var currentLineLength = label.formattedText().isBlank() ? xValueLineLength / 1.5d : xValueLineLength;
//noinspection SuspiciousNameCombination
graphics2D.draw(new Line2D.Double(lineStartOffsetX, xValueLineOffset, lineStartOffsetX, xValueLineOffset + currentLineLength));
}
if (showRulerLabels) {
graphics2D.fill(generateShapeFromText(graphics2D,
label.formattedText(),
xValuesOffset.width() + label.rasterOffset() - valuesFontMetrics.stringWidth(label.formattedText()) / 2d,
xValuesOffset.height() + valuesFontMetrics.getHeight()
));
}
});
}
}
private static void renderGraphBorders(Graphics2D graphics2D,
Graph graph,
RasterSize graphOffset,
RasterSize graphSize,
BasicStroke defaultStroke) {
BasicStroke defaultStroke,
RasterSize totalSize) {
// Do not draw the border if the graph is fullscreen
if (graphOffset.width() <= 0
&& graphOffset.height() <= 0
&& graphSize.width() >= totalSize.width()
&& graphSize.height() >= totalSize.height()) {
return;
}
var fgColor = graph.style().colors().foreground().toColor();
graphics2D.setColor(fgColor);
graphics2D.setStroke(defaultStroke);
@ -694,7 +728,11 @@ public class AWTGraphRenderer implements IGraphRenderer<AWTDrawer> {
));
}
private static RasterSize computeYLabelsAreaSize(double graphHeight, FontMetrics valuesFontMetrics, List<LabelWithOffset> yLabels) {
private static RasterSize computeYLabelsAreaSize(AxisMode axisMode, double graphHeight, FontMetrics valuesFontMetrics,
List<LabelWithOffset> yLabels) {
if (!axisMode.showLabels()) {
return RasterSize.EMPTY;
}
double maxLabelWidth = 0d;
for (LabelWithOffset yLabel : yLabels) {
var currentMaxLabelWidth = valuesFontMetrics.stringWidth(yLabel.formattedText);

21
src/main/java/it/cavallium/jlinegraph/AxisMode.java Normal file
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@ -0,0 +1,21 @@
package it.cavallium.jlinegraph;
public enum AxisMode {
SHOW_WITH_VALUES,
SHOW_RULER_ONLY,
HIDE;
public boolean showLabels() {
return switch (this) {
case SHOW_WITH_VALUES -> true;
default -> false;
};
}
public boolean showRuler() {
return switch (this) {
case SHOW_WITH_VALUES, SHOW_RULER_ONLY -> true;
default -> false;
};
}
}

2
src/main/java/it/cavallium/jlinegraph/GraphAxisStyle.java
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@ -2,4 +2,4 @@ package it.cavallium.jlinegraph;
import java.util.function.Function;
public record GraphAxisStyle(String title, boolean show, Function<Number, String> valueFormat) {}
public record GraphAxisStyle(String title, boolean showName, AxisMode mode, Function<Number, String> valueFormat) {}

2
src/main/java/it/cavallium/jlinegraph/GraphStyle.java
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@ -3,4 +3,4 @@ package it.cavallium.jlinegraph;
import java.util.List;
public record GraphStyle(List<SeriesStyle> seriesStyles, GraphAxisStyle x, GraphAxisStyle y, GraphColors colors,
GraphFonts fonts, double strokeWidth, boolean showLegend) {}
GraphFonts fonts, double strokeWidth, boolean showLegend, double paddingMultiplier) {}

4
src/main/java/it/cavallium/jlinegraph/RasterSize.java
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@ -1,3 +1,5 @@
package it.cavallium.jlinegraph;
public record RasterSize(double width, double height) {}
public record RasterSize(double width, double height) {
public static final RasterSize EMPTY = new RasterSize(0, 0);
}