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org.codetome.hexameter.swtexample.DemoComposite Maven / Gradle / Ivy
package org.codetome.hexameter.swtexample;
import org.codetome.hexameter.core.api.Hexagon;
import org.codetome.hexameter.core.api.HexagonOrientation;
import org.codetome.hexameter.core.api.HexagonalGrid;
import org.codetome.hexameter.core.api.HexagonalGridBuilder;
import org.codetome.hexameter.core.api.HexagonalGridCalculator;
import org.codetome.hexameter.core.api.HexagonalGridLayout;
import org.codetome.hexameter.core.api.Point;
import org.codetome.hexameter.core.api.exception.HexagonalGridCreationException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Spinner;
import org.eclipse.swt.widgets.Text;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Optional;
import static org.codetome.hexameter.core.api.HexagonOrientation.POINTY_TOP;
import static org.codetome.hexameter.core.api.HexagonalGridLayout.RECTANGULAR;
public class DemoComposite extends Composite {
private static final int DEFAULT_GRID_WIDTH = 15;
private static final int DEFAULT_GRID_HEIGHT = 15;
private static final int DEFAULT_RADIUS = 30;
private static final HexagonOrientation DEFAULT_ORIENTATION = POINTY_TOP;
private static final HexagonalGridLayout DEFAULT_GRID_LAYOUT = RECTANGULAR;
private static final int CANVAS_WIDTH = 1000;
private HexagonalGrid hexagonalGrid;
private HexagonalGridCalculator hexagonalGridCalculator;
private int gridWidth = DEFAULT_GRID_WIDTH;
private int gridHeight = DEFAULT_GRID_HEIGHT;
private int radius = DEFAULT_RADIUS;
private HexagonOrientation orientation = DEFAULT_ORIENTATION;
private HexagonalGridLayout hexagonGridLayout = DEFAULT_GRID_LAYOUT;
private boolean showNeighbors = false;
private boolean showMovementRange = false;
private Hexagon prevSelected = null;
private Hexagon currSelected = null;
private int movementRange;
private Font font;
private int fontSize;
private boolean drawCoordinates;
/**
* Demo composite.
*/
public DemoComposite(Shell parent, int style, final int shellWidth, final int shellHeight) {
super(parent, style);
GridLayout compositeLayout = new GridLayout(2, false);
compositeLayout.horizontalSpacing = 0;
compositeLayout.verticalSpacing = 0;
compositeLayout.marginWidth = 0;
compositeLayout.marginHeight = 0;
setLayout(compositeLayout);
setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
final Canvas canvas = new Canvas(this, SWT.DOUBLE_BUFFERED);
canvas.addMouseMoveListener(event -> {
});
GridData canvasGridData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
canvasGridData.minimumWidth = CANVAS_WIDTH;
canvas.setLayoutData(canvasGridData);
canvas.setLayout(new GridLayout(1, false));
final Group grpControls = new Group(this, SWT.NONE);
grpControls.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
GridLayout graphControlGridLayout = new GridLayout(2, false);
graphControlGridLayout.marginHeight = 0;
grpControls.setLayout(graphControlGridLayout);
grpControls.setText("Controls:");
// pointy radio
final Button radioPointy = new Button(grpControls, SWT.RADIO);
radioPointy.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent arg0) {
if (radioPointy.getSelection()) {
orientation = POINTY_TOP;
regenerateHexagonGrid(canvas);
}
}
});
radioPointy.setSelection(true);
radioPointy.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
radioPointy.setText("Pointy");
// flat radio
final Button radioFlat = new Button(grpControls, SWT.RADIO);
radioFlat.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
radioFlat.setText("Flat");
radioFlat.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent arg0) {
if (radioFlat.getSelection()) {
orientation = HexagonOrientation.FLAT_TOP;
regenerateHexagonGrid(canvas);
}
}
});
// layout
Label lblLayout = new Label(grpControls, SWT.NONE);
lblLayout.setText("Layout");
final Combo layoutCombo = new Combo(grpControls, SWT.NONE);
for (HexagonalGridLayout layout : HexagonalGridLayout.values()) {
layoutCombo.add(layout.name());
}
layoutCombo.setText(DEFAULT_GRID_LAYOUT.name());
layoutCombo.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
hexagonGridLayout = HexagonalGridLayout.valueOf(layoutCombo.getText());
regenerateHexagonGrid(canvas);
}
});
layoutCombo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
// grid width
Label lblNewLabel = new Label(grpControls, SWT.NONE);
lblNewLabel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
lblNewLabel.setText("Grid width");
final Spinner gridWidthSpinner = new Spinner(grpControls, SWT.BORDER);
gridWidthSpinner.setSelection(gridWidth);
gridWidthSpinner.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
gridWidth = gridWidthSpinner.getSelection();
regenerateHexagonGrid(canvas);
}
});
// grid height
Label lblGridy = new Label(grpControls, SWT.NONE);
lblGridy.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1));
lblGridy.setText("Grid height");
final Spinner gridHeightSpinner = new Spinner(grpControls, SWT.BORDER);
gridHeightSpinner.setSelection(gridHeight);
gridHeightSpinner.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
gridHeight = gridHeightSpinner.getSelection();
regenerateHexagonGrid(canvas);
}
});
// radius
Label lblRadius = new Label(grpControls, SWT.NONE);
lblRadius.setText("Radius");
final Spinner radiusSpinner = new Spinner(grpControls, SWT.BORDER);
radiusSpinner.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
radius = radiusSpinner.getSelection();
regenerateHexagonGrid(canvas);
}
});
radiusSpinner.setSelection(radius);
// movement range
Label lblMovementRange = new Label(grpControls, SWT.NONE);
lblMovementRange.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
lblMovementRange.setText("Movement range");
final Spinner movementRangeSpinner = new Spinner(grpControls, SWT.BORDER);
movementRangeSpinner.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
movementRange = movementRangeSpinner.getSelection();
canvas.redraw();
}
});
// toggle neighbors
final Button toggleNeighborsCheck = new Button(grpControls, SWT.CHECK);
toggleNeighborsCheck.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
toggleNeighborsCheck.setText("Toggle neighbors");
final Button toggleMovementRangeCheck = new Button(grpControls, SWT.CHECK);
toggleMovementRangeCheck.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
toggleMovementRangeCheck.setText("Toggle movement range");
toggleMovementRangeCheck.addMouseListener(new MouseAdapter() {
@Override
public void mouseUp(MouseEvent event) {
showMovementRange = toggleMovementRangeCheck.getSelection();
showNeighbors = !showMovementRange;
toggleNeighborsCheck.setSelection(showNeighbors);
canvas.redraw();
}
});
toggleNeighborsCheck.addMouseListener(new MouseAdapter() {
@Override
public void mouseUp(MouseEvent event) {
showNeighbors = toggleNeighborsCheck.getSelection();
showMovementRange = !showNeighbors;
toggleMovementRangeCheck.setSelection(showMovementRange);
canvas.redraw();
}
});
// toggle draw coordinates
final Button toggleDrawCoordinatesCheck = new Button(grpControls, SWT.CHECK);
toggleDrawCoordinatesCheck.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
toggleDrawCoordinatesCheck.setText("Draw coordinates");
toggleDrawCoordinatesCheck.addMouseListener(new MouseAdapter() {
@Override
public void mouseUp(MouseEvent event) {
drawCoordinates = toggleDrawCoordinatesCheck.getSelection();
canvas.redraw();
}
});
// reset button
Button resetButton = new Button(grpControls, SWT.NONE);
resetButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1));
resetButton.setText("Reset");
// position of mouse
Label lblXPosition = new Label(grpControls, SWT.NONE);
lblXPosition.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
lblXPosition.setText("X position:");
final Text xPositionText = new Text(grpControls, SWT.BORDER);
xPositionText.setEditable(false);
xPositionText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
Label lblYPosition = new Label(grpControls, SWT.NONE);
lblYPosition.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
lblYPosition.setText("Y position:");
final Text yPositionText = new Text(grpControls, SWT.BORDER);
yPositionText.setEditable(false);
yPositionText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
// distance
Label lblDistance = new Label(grpControls, SWT.NONE);
lblDistance.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
lblDistance.setText("Distance");
final Text distanceText = new Text(grpControls, SWT.BORDER);
distanceText.setEditable(false);
distanceText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
Label label1 = new Label(grpControls, SWT.NONE);
label1.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
label1.setText("(between last 2 selected)");
resetButton.addMouseListener(new MouseAdapter() {
@Override
public void mouseUp(MouseEvent arg0) {
resetFields();
resetControls();
regenerateHexagonGrid(canvas);
}
private void resetFields() {
orientation = DEFAULT_ORIENTATION;
gridHeight = DEFAULT_GRID_HEIGHT;
gridWidth = DEFAULT_GRID_WIDTH;
radius = DEFAULT_RADIUS;
showNeighbors = false;
showMovementRange = false;
hexagonGridLayout = DEFAULT_GRID_LAYOUT;
prevSelected = null;
currSelected = null;
movementRange = 0;
drawCoordinates = false;
}
private void resetControls() {
radioPointy.setSelection(true);
radioFlat.setSelection(false);
gridHeightSpinner.setSelection(DEFAULT_GRID_HEIGHT);
gridWidthSpinner.setSelection(DEFAULT_GRID_WIDTH);
radiusSpinner.setSelection(DEFAULT_RADIUS);
toggleNeighborsCheck.setSelection(false);
toggleMovementRangeCheck.setSelection(false);
distanceText.setText("");
movementRangeSpinner.setSelection(0);
toggleDrawCoordinatesCheck.setSelection(false);
layoutCombo.setText(DEFAULT_GRID_LAYOUT.name());
}
});
canvas.addMouseMoveListener(event -> {
xPositionText.setText(event.x + "");
yPositionText.setText(event.y + "");
});
// darawing
canvas.addMouseListener(new MouseAdapter() {
@Override
public void mouseUp(MouseEvent event) {
Hexagon hex = null;
try {
hex = hexagonalGrid.getByPixelCoordinate(event.x, event.y).get();
} catch (NoSuchElementException ex) {
ex.printStackTrace();
}
if (hex != null) {
prevSelected = currSelected;
currSelected = hex;
drawDistance();
Optional dataOptional = hex.getSatelliteData();
SatelliteDataImpl data = null;
if (dataOptional.isPresent()) {
data = dataOptional.get();
} else {
data = new SatelliteDataImpl();
}
data.setSelected(!data.isSelected());
hex.setSatelliteData(data);
}
canvas.redraw();
}
private void drawDistance() {
if (prevSelected != null) {
distanceText.setText(hexagonalGridCalculator.calculateDistanceBetween(prevSelected, currSelected) + "");
}
}
});
canvas.addPaintListener(new PaintListener() {
Color darkBlue = getDisplay().getSystemColor(SWT.COLOR_DARK_BLUE);
Color white = getDisplay().getSystemColor(SWT.COLOR_WHITE);
Color darkGray = getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY);
Color yellow = getDisplay().getSystemColor(SWT.COLOR_YELLOW);
Color red = getDisplay().getSystemColor(SWT.COLOR_RED);
public void paintControl(PaintEvent event) {
event.gc.setLineWidth(2);
event.gc.setForeground(darkBlue);
event.gc.setBackground(white);
event.gc.fillRectangle(new Rectangle(0, 0, shellWidth, shellHeight));
for (Hexagon hexagon : hexagonalGrid.getHexagons()) {
Optional data = hexagon.getSatelliteData();
if (data.isPresent() && data.get().isSelected()) {
if (showNeighbors) {
for (Hexagon hex : hexagonalGrid.getNeighborsOf(hexagon)) {
drawNeighborHexagon(event.gc, hex);
}
}
if (showMovementRange) {
for (Hexagon hex : hexagonalGridCalculator.calculateMovementRangeFrom(hexagon, movementRange)) {
drawMovementRangeHexagon(event.gc, hex);
}
}
}
drawEmptyHexagon(event.gc, hexagon);
}
for (Hexagon hexagon : hexagonalGrid.getHexagons()) {
Optional data = hexagon.getSatelliteData();
if (data.isPresent() && data.get().isSelected()) {
drawFilledHexagon(event.gc, hexagon);
}
if (drawCoordinates) {
drawCoordinates(event.gc, hexagon);
}
}
}
private void drawNeighborHexagon(GC gc, Hexagon hexagon) {
gc.setForeground(white);
gc.setBackground(darkGray);
gc.fillPolygon(convertToPointsArr(hexagon.getPoints()));
gc.setForeground(darkBlue);
gc.drawPolygon(convertToPointsArr(hexagon.getPoints()));
}
private void drawMovementRangeHexagon(GC gc, Hexagon hexagon) {
gc.setForeground(darkBlue);
gc.setBackground(yellow);
gc.fillPolygon(convertToPointsArr(hexagon.getPoints()));
gc.setForeground(darkBlue);
gc.drawPolygon(convertToPointsArr(hexagon.getPoints()));
}
private void drawEmptyHexagon(GC gc, Hexagon hexagon) {
gc.setForeground(darkBlue);
gc.setBackground(white);
gc.drawPolygon(convertToPointsArr(hexagon.getPoints()));
}
private void drawFilledHexagon(GC gc, Hexagon hexagon) {
gc.setForeground(white);
gc.setBackground(darkBlue);
gc.fillPolygon(convertToPointsArr(hexagon.getPoints()));
gc.setForeground(darkBlue);
gc.drawPolygon(convertToPointsArr(hexagon.getPoints()));
}
private void drawCoordinates(GC gc, Hexagon hexagon) {
int gridX = hexagon.getGridX();
int gridY = hexagon.getGridY();
int gridZ = -(gridX + gridY);
gc.setFont(font);
gc.setForeground(red);
gc.drawString("gridX:" + gridX, (int) hexagon.getCenterX() - fontSize, (int) (hexagon.getCenterY() - fontSize * 2.5), true);
gc.drawString("gridY:" + gridY, (int) (hexagon.getCenterX() - fontSize * 2.8), (int) hexagon.getCenterY() + fontSize / 3, true);
gc.drawString("gridZ:" + gridZ, (int) (hexagon.getCenterX() + fontSize / 3), (int) (hexagon.getCenterY() + fontSize / 3), true);
}
private int[] convertToPointsArr(List points) {
int[] pointsArr = new int[12];
int idx = 0;
for (Point point : points) {
pointsArr[idx] = (int) Math.round(point.getCoordinateX());
pointsArr[idx + 1] = (int) Math.round(point.getCoordinateY());
idx += 2;
}
return pointsArr;
}
});
// fire it up
regenerateHexagonGrid(canvas);
}
private void regenerateHexagonGrid(Canvas canvas) {
FontData fd = canvas.getDisplay().getSystemFont().getFontData()[0];
fontSize = (int) (radius / 3.5);
font = new Font(canvas.getDisplay(), fd.getName(), fontSize, SWT.NONE);
try {
HexagonalGridBuilder builder = new HexagonalGridBuilder()
.setGridWidth(gridWidth)
.setGridHeight(gridHeight)
.setRadius(radius)
.setOrientation(orientation)
.setGridLayout(hexagonGridLayout);
hexagonalGrid = builder.build();
hexagonalGridCalculator = builder.buildCalculatorFor(hexagonalGrid);
} catch (HexagonalGridCreationException e) {
final Shell dialog = new Shell(canvas.getShell(), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
dialog.setLayout(new RowLayout());
Label msg = new Label(dialog, SWT.NONE);
msg.setText(e.getMessage());
final Button ok = new Button(dialog, SWT.PUSH);
ok.setText("Ok");
Listener listener = event -> dialog.close();
ok.addListener(SWT.Selection, listener);
dialog.pack();
dialog.open();
}
canvas.redraw();
}
}
