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PartitionGridVisualCreator.java
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PartitionGridVisualCreator.java
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/****************************************************************************
**
** This demo file is part of yFiles for JavaFX 3.6.
**
** Copyright (c) 2000-2023 by yWorks GmbH, Vor dem Kreuzberg 28,
** 72070 Tuebingen, Germany. All rights reserved.
**
** yFiles demo files exhibit yFiles for JavaFX functionalities. Any redistribution
** of demo files in source code or binary form, with or without
** modification, is not permitted.
**
** Owners of a valid software license for a yFiles for JavaFX version that this
** demo is shipped with are allowed to use the demo source code as basis
** for their own yFiles for JavaFX powered applications. Use of such programs is
** governed by the rights and conditions as set out in the yFiles for JavaFX
** license agreement.
**
** THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
** NO EVENT SHALL yWorks BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
** TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
***************************************************************************/
package layout.partitiongrid;
import com.yworks.yfiles.algorithms.YList;
import com.yworks.yfiles.geometry.RectD;
import com.yworks.yfiles.layout.ColumnDescriptor;
import com.yworks.yfiles.layout.PartitionGrid;
import com.yworks.yfiles.layout.RowDescriptor;
import com.yworks.yfiles.utils.IEnumerable;
import com.yworks.yfiles.view.IRenderContext;
import com.yworks.yfiles.view.IVisualCreator;
import com.yworks.yfiles.view.Pen;
import com.yworks.yfiles.view.VisualGroup;
import com.yworks.yfiles.view.IAnimation;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import java.time.Duration;
import java.util.List;
/**
* Visualizes the partition grid that has been used in the last layout.
* <p>
* Each column and row is visualized by a {@link Rectangle}.
* </p>
* <p>
* This class implements {@link IAnimation} and allows to animate the partition grid changes between two layout calculations.
* </p>
*/
class PartitionGridVisualCreator implements IVisualCreator, IAnimation {
// the columns and rows to draw
private final Rectangle[] columns;
private final Rectangle[] rows;
// start and end positions of the columns and rows to animate between
private RectD[] columnStarts;
private RectD[] columnEnds;
private RectD[] rowStarts;
private RectD[] rowEnds;
private PartitionGrid grid;
/**
* Creates a new instance with one column per color and one row per pen.
* @param colors The colors used for the grid column fills.
* @param pens The pens used for the grid row borders.
*/
PartitionGridVisualCreator(List<Color> colors, List<Pen> pens) {
//to colorize the background we use rectangles
columns = new Rectangle[colors.size()];
//iterate over every color(therefore any column) and create the color according rectangle
for (int i = 0; i < colors.size(); i++) {
columns[i] = new Rectangle(10, 10, colors.get(i));
columns[i].setOpacity(0.3);
}
rows = new Rectangle[pens.size()];
for (int i = 0; i < pens.size(); i++) {
rows[i] = new Rectangle(10, 10, Color.TRANSPARENT);
rows[i].setStroke(pens.get(i).getPaint());
rows[i].setStrokeWidth(pens.get(i).getThickness());
}
}
// region IVisualCreator implementation
@Override
public Node createVisual(IRenderContext renderContext) {
// create a new VisualGroup and update it with the current state
VisualGroup container = new VisualGroup();
for (Rectangle column: columns) {
container.add(column);
}
for (Rectangle row: rows) {
container.add(row);
}
return container;
}
@Override
public Node updateVisual(IRenderContext renderContext, Node oldVisual) {
return oldVisual;
}
// endregion
// region IAnimation implementation
public void initialize() {
// calculate min and max values of the partition grid bounds for the start and the end of the animation
double minStartX = Double.MAX_VALUE;
double maxStartX = Double.MIN_VALUE;
double minStartY = Double.MAX_VALUE;
double maxStartY = Double.MIN_VALUE;
double minEndX = Double.MAX_VALUE;
double maxEndX = Double.MIN_VALUE;
double minEndY = Double.MAX_VALUE;
double maxEndY = Double.MIN_VALUE;
// looking at the y-coordinate and height of each row before and after the layout we can define min/maxStart/EndY
List<RowDescriptor> gridRows = grid.getRows().toList();
for (int i = 0; i < gridRows.size(); i++) {
RowDescriptor rowDescriptor = (RowDescriptor) gridRows.get(i);
Rectangle rowRect = rows[i];
minStartY = Math.min(minStartY, rowRect.getLayoutY());
maxStartY = Math.max(maxStartY, rowRect.getLayoutY() + rowRect.getHeight());
minEndY = Math.min(minEndY, rowDescriptor.getComputedPosition());
maxEndY = Math.max(maxEndY, rowDescriptor.getComputedPosition() + rowDescriptor.getComputedHeight());
}
// looking at the x-coordinate and width of each column before and after the layout we can define min/maxStart/EndX
List<ColumnDescriptor> columns = grid.getColumns().toList();
columnStarts = new RectD[columns.size()];
columnEnds = new RectD[columns.size()];
for (int i = 0; i < columns.size(); i++) {
ColumnDescriptor columnDescriptor = (ColumnDescriptor) columns.get(i);
Rectangle columnRect = this.columns[i];
double startX = columnRect.getLayoutX();
double startWidth = columnRect.getWidth();
minStartX = Math.min(minStartX, startX);
maxStartX = Math.max(maxStartX, startX + startWidth);
double endX = columnDescriptor.getComputedPosition();
double endWidth = columnDescriptor.getComputedWidth();
minEndX = Math.min(minEndX, endX);
maxEndX = Math.max(maxEndX, endX + endWidth);
// for each column we store its layout before and after the layout
columnStarts[i] = new RectD(startX, minStartY, startWidth, maxStartY - minStartY);
columnEnds[i] = new RectD(endX, minEndY, endWidth, maxEndY - minEndY);
}
rowStarts = new RectD[gridRows.size()];
rowEnds = new RectD[gridRows.size()];
for (int i = 0; i < gridRows.size(); i++) {
RowDescriptor rowDescriptor = (RowDescriptor) gridRows.get(i);
Rectangle rowRect = this.rows[i];
double startY = rowRect.getLayoutY();
double startHeight = rowRect.getHeight();
double endY = rowDescriptor.getComputedPosition();
double endHeight = rowDescriptor.getComputedHeight();
// for each row we store its layout before and after the layout
rowStarts[i] = new RectD(minStartX, startY, maxStartX - minStartX, startHeight);
rowEnds[i] = new RectD(minEndX, endY, maxEndX - minEndX, endHeight);
}
}
public void animate(double time) {
// for each row and column we calculate and set an intermediate layout corresponding to the time ratio
for (int i = 0; i < this.rows.length; i++) {
Rectangle row = this.rows[i];
RectD rowStart = rowStarts[i];
RectD rowEnd = rowEnds[i];
row.setLayoutX(rowStart.getX() + time * (rowEnd.getX() - rowStart.getX()));
row.setLayoutY(rowStart.getY() + time * (rowEnd.getY() - rowStart.getY()));
row.setWidth(rowStart.getWidth() + time * (rowEnd.getWidth() - rowStart.getWidth()));
row.setHeight(rowStart.getHeight() + time * (rowEnd.getHeight() - rowStart.getHeight()));
}
for (int i = 0; i < this.columns.length; i++) {
Rectangle column = this.columns[i];
RectD columnStart = columnStarts[i];
RectD columnEnd = columnEnds[i];
column.setLayoutX(columnStart.getX() + time * (columnEnd.getX() - columnStart.getX()));
column.setLayoutY(columnStart.getY() + time * (columnEnd.getY() - columnStart.getY()));
column.setWidth(columnStart.getWidth() + time * (columnEnd.getWidth() - columnStart.getWidth()));
column.setHeight(columnStart.getHeight() + time * (columnEnd.getHeight() - columnStart.getHeight()));
}
}
@Override
public void cleanUp() {
grid = null;
rowStarts = null;
rowEnds = null;
columnStarts = null;
columnEnds = null;
}
@Override
public Duration getPreferredDuration() {
return Duration.ofMillis(500);
}
// endregion
/**
* Sets the grid for the next animation.
*/
public void setGrid(PartitionGrid grid) {
this.grid = grid;
}
}