72
73 // -------------- PRIVATE FIELDS -----------------------------------------------------------------------------------
74
75 private static final int MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT = 200;
76 private static final int MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT = 150;
77
78 /** Title Label */
79 private final Label titleLabel = new Label();
80 /**
81 * This is the Pane that Chart subclasses use to contain the chart content,
82 * It is sized to be inside the chart area leaving space for the title and legend.
83 */
84 private final Pane chartContent = new Pane() {
85 @Override protected void layoutChildren() {
86 final double top = snappedTopInset();
87 final double left = snappedLeftInset();
88 final double bottom = snappedBottomInset();
89 final double right = snappedRightInset();
90 final double width = getWidth();
91 final double height = getHeight();
92 final double contentWidth = snapSize(width - (left + right));
93 final double contentHeight = snapSize(height - (top + bottom));
94 layoutChartChildren(snapPosition(top), snapPosition(left),contentWidth,contentHeight);
95 }
96 @Override public boolean usesMirroring() {
97 return useChartContentMirroring;
98 }
99 };
100 // Determines if chart content should be mirrored if node orientation is right-to-left.
101 boolean useChartContentMirroring = true;
102
103 /** Animator for animating stuff on the chart */
104 private final ChartLayoutAnimator animator = new ChartLayoutAnimator(chartContent);
105
106 // -------------- PUBLIC PROPERTIES --------------------------------------------------------------------------------
107
108 /** The chart title */
109 private StringProperty title = new StringPropertyBase() {
110 @Override protected void invalidated() {
111 titleLabel.setText(get());
112 }
113
114 @Override
320 * @param left The left offset from the origin to account for any padding on the chart content
321 * @param width The width of the area to layout the chart within
322 * @param height The height of the area to layout the chart within
323 */
324 protected abstract void layoutChartChildren(double top, double left, double width, double height);
325
326 /**
327 * Invoked during the layout pass to layout this chart and all its content.
328 */
329 @Override protected void layoutChildren() {
330 double top = snappedTopInset();
331 double left = snappedLeftInset();
332 double bottom = snappedBottomInset();
333 double right = snappedRightInset();
334 final double width = getWidth();
335 final double height = getHeight();
336 // layout title
337 if (getTitle() != null) {
338 titleLabel.setVisible(true);
339 if (getTitleSide().equals(Side.TOP)) {
340 final double titleHeight = snapSize(titleLabel.prefHeight(width-left-right));
341 titleLabel.resizeRelocate(left,top,width-left-right,titleHeight);
342 top += titleHeight;
343 } else if (getTitleSide().equals(Side.BOTTOM)) {
344 final double titleHeight = snapSize(titleLabel.prefHeight(width-left-right));
345 titleLabel.resizeRelocate(left,height-bottom-titleHeight,width-left-right,titleHeight);
346 bottom += titleHeight;
347 } else if (getTitleSide().equals(Side.LEFT)) {
348 final double titleWidth = snapSize(titleLabel.prefWidth(height-top-bottom));
349 titleLabel.resizeRelocate(left,top,titleWidth,height-top-bottom);
350 left += titleWidth;
351 } else if (getTitleSide().equals(Side.RIGHT)) {
352 final double titleWidth = snapSize(titleLabel.prefWidth(height-top-bottom));
353 titleLabel.resizeRelocate(width-right-titleWidth,top,titleWidth,height-top-bottom);
354 right += titleWidth;
355 }
356 } else {
357 titleLabel.setVisible(false);
358 }
359 // layout legend
360 final Node legend = getLegend();
361 if (legend != null) {
362 boolean shouldShowLegend = isLegendVisible();
363 if (shouldShowLegend) {
364 if (getLegendSide() == Side.TOP) {
365 final double legendHeight = snapSize(legend.prefHeight(width-left-right));
366 final double legendWidth = Utils.boundedSize(snapSize(legend.prefWidth(legendHeight)), 0, width - left - right);
367 legend.resizeRelocate(left + (((width - left - right)-legendWidth)/2), top, legendWidth, legendHeight);
368 if ((height - bottom - top - legendHeight) < MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT) {
369 shouldShowLegend = false;
370 } else {
371 top += legendHeight;
372 }
373 } else if (getLegendSide() == Side.BOTTOM) {
374 final double legendHeight = snapSize(legend.prefHeight(width-left-right));
375 final double legendWidth = Utils.boundedSize(snapSize(legend.prefWidth(legendHeight)), 0, width - left - right);
376 legend.resizeRelocate(left + (((width - left - right)-legendWidth)/2), height-bottom-legendHeight, legendWidth, legendHeight);
377 if ((height - bottom - top - legendHeight) < MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT) {
378 shouldShowLegend = false;
379 } else {
380 bottom += legendHeight;
381 }
382 } else if (getLegendSide() == Side.LEFT) {
383 final double legendWidth = snapSize(legend.prefWidth(height-top-bottom));
384 final double legendHeight = Utils.boundedSize(snapSize(legend.prefHeight(legendWidth)), 0, height - top - bottom);
385 legend.resizeRelocate(left,top +(((height-top-bottom)-legendHeight)/2),legendWidth,legendHeight);
386 if ((width - left - right - legendWidth) < MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT) {
387 shouldShowLegend = false;
388 } else {
389 left += legendWidth;
390 }
391 } else if (getLegendSide() == Side.RIGHT) {
392 final double legendWidth = snapSize(legend.prefWidth(height-top-bottom));
393 final double legendHeight = Utils.boundedSize(snapSize(legend.prefHeight(legendWidth)), 0, height - top - bottom);
394 legend.resizeRelocate(width-right-legendWidth,top +(((height-top-bottom)-legendHeight)/2),legendWidth,legendHeight);
395 if ((width - left - right - legendWidth) < MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT) {
396 shouldShowLegend = false;
397 } else {
398 right += legendWidth;
399 }
400 }
401 }
402 legend.setVisible(shouldShowLegend);
403 }
404 // whats left is for the chart content
405 chartContent.resizeRelocate(left,top,width-left-right,height-top-bottom);
406 }
407
408 /**
409 * Charts are sized outside in, user tells chart how much space it has and chart draws inside that. So minimum
410 * height is a constant 150.
411 */
412 @Override protected double computeMinHeight(double width) { return 150; }
413
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72
73 // -------------- PRIVATE FIELDS -----------------------------------------------------------------------------------
74
75 private static final int MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT = 200;
76 private static final int MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT = 150;
77
78 /** Title Label */
79 private final Label titleLabel = new Label();
80 /**
81 * This is the Pane that Chart subclasses use to contain the chart content,
82 * It is sized to be inside the chart area leaving space for the title and legend.
83 */
84 private final Pane chartContent = new Pane() {
85 @Override protected void layoutChildren() {
86 final double top = snappedTopInset();
87 final double left = snappedLeftInset();
88 final double bottom = snappedBottomInset();
89 final double right = snappedRightInset();
90 final double width = getWidth();
91 final double height = getHeight();
92 final double contentWidth = snapSizeX(width - (left + right));
93 final double contentHeight = snapSizeY(height - (top + bottom));
94 layoutChartChildren(snapPositionY(top), snapPositionX(left), contentWidth, contentHeight);
95 }
96 @Override public boolean usesMirroring() {
97 return useChartContentMirroring;
98 }
99 };
100 // Determines if chart content should be mirrored if node orientation is right-to-left.
101 boolean useChartContentMirroring = true;
102
103 /** Animator for animating stuff on the chart */
104 private final ChartLayoutAnimator animator = new ChartLayoutAnimator(chartContent);
105
106 // -------------- PUBLIC PROPERTIES --------------------------------------------------------------------------------
107
108 /** The chart title */
109 private StringProperty title = new StringPropertyBase() {
110 @Override protected void invalidated() {
111 titleLabel.setText(get());
112 }
113
114 @Override
320 * @param left The left offset from the origin to account for any padding on the chart content
321 * @param width The width of the area to layout the chart within
322 * @param height The height of the area to layout the chart within
323 */
324 protected abstract void layoutChartChildren(double top, double left, double width, double height);
325
326 /**
327 * Invoked during the layout pass to layout this chart and all its content.
328 */
329 @Override protected void layoutChildren() {
330 double top = snappedTopInset();
331 double left = snappedLeftInset();
332 double bottom = snappedBottomInset();
333 double right = snappedRightInset();
334 final double width = getWidth();
335 final double height = getHeight();
336 // layout title
337 if (getTitle() != null) {
338 titleLabel.setVisible(true);
339 if (getTitleSide().equals(Side.TOP)) {
340 final double titleHeight = snapSizeY(titleLabel.prefHeight(width-left-right));
341 titleLabel.resizeRelocate(left,top,width-left-right,titleHeight);
342 top += titleHeight;
343 } else if (getTitleSide().equals(Side.BOTTOM)) {
344 final double titleHeight = snapSizeY(titleLabel.prefHeight(width-left-right));
345 titleLabel.resizeRelocate(left,height-bottom-titleHeight,width-left-right,titleHeight);
346 bottom += titleHeight;
347 } else if (getTitleSide().equals(Side.LEFT)) {
348 final double titleWidth = snapSizeX(titleLabel.prefWidth(height-top-bottom));
349 titleLabel.resizeRelocate(left,top,titleWidth,height-top-bottom);
350 left += titleWidth;
351 } else if (getTitleSide().equals(Side.RIGHT)) {
352 final double titleWidth = snapSizeX(titleLabel.prefWidth(height-top-bottom));
353 titleLabel.resizeRelocate(width-right-titleWidth,top,titleWidth,height-top-bottom);
354 right += titleWidth;
355 }
356 } else {
357 titleLabel.setVisible(false);
358 }
359 // layout legend
360 final Node legend = getLegend();
361 if (legend != null) {
362 boolean shouldShowLegend = isLegendVisible();
363 if (shouldShowLegend) {
364 if (getLegendSide() == Side.TOP) {
365 final double legendHeight = snapSizeY(legend.prefHeight(width-left-right));
366 final double legendWidth = Utils.boundedSize(snapSizeX(legend.prefWidth(legendHeight)), 0, width - left - right);
367 legend.resizeRelocate(left + (((width - left - right)-legendWidth)/2), top, legendWidth, legendHeight);
368 if ((height - bottom - top - legendHeight) < MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT) {
369 shouldShowLegend = false;
370 } else {
371 top += legendHeight;
372 }
373 } else if (getLegendSide() == Side.BOTTOM) {
374 final double legendHeight = snapSizeY(legend.prefHeight(width-left-right));
375 final double legendWidth = Utils.boundedSize(snapSizeX(legend.prefWidth(legendHeight)), 0, width - left - right);
376 legend.resizeRelocate(left + (((width - left - right)-legendWidth)/2), height-bottom-legendHeight, legendWidth, legendHeight);
377 if ((height - bottom - top - legendHeight) < MIN_HEIGHT_TO_LEAVE_FOR_CHART_CONTENT) {
378 shouldShowLegend = false;
379 } else {
380 bottom += legendHeight;
381 }
382 } else if (getLegendSide() == Side.LEFT) {
383 final double legendWidth = snapSizeX(legend.prefWidth(height-top-bottom));
384 final double legendHeight = Utils.boundedSize(snapSizeY(legend.prefHeight(legendWidth)), 0, height - top - bottom);
385 legend.resizeRelocate(left,top +(((height-top-bottom)-legendHeight)/2),legendWidth,legendHeight);
386 if ((width - left - right - legendWidth) < MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT) {
387 shouldShowLegend = false;
388 } else {
389 left += legendWidth;
390 }
391 } else if (getLegendSide() == Side.RIGHT) {
392 final double legendWidth = snapSizeX(legend.prefWidth(height-top-bottom));
393 final double legendHeight = Utils.boundedSize(snapSizeY(legend.prefHeight(legendWidth)), 0, height - top - bottom);
394 legend.resizeRelocate(width-right-legendWidth,top +(((height-top-bottom)-legendHeight)/2),legendWidth,legendHeight);
395 if ((width - left - right - legendWidth) < MIN_WIDTH_TO_LEAVE_FOR_CHART_CONTENT) {
396 shouldShowLegend = false;
397 } else {
398 right += legendWidth;
399 }
400 }
401 }
402 legend.setVisible(shouldShowLegend);
403 }
404 // whats left is for the chart content
405 chartContent.resizeRelocate(left,top,width-left-right,height-top-bottom);
406 }
407
408 /**
409 * Charts are sized outside in, user tells chart how much space it has and chart draws inside that. So minimum
410 * height is a constant 150.
411 */
412 @Override protected double computeMinHeight(double width) { return 150; }
413
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