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better handling of bounding box in VisualElement

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This commit is contained in:
hneemann 2016-04-12 14:44:33 +02:00
parent 8536f4a6f6
commit 7ea907836c
2 changed files with 41 additions and 25 deletions
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48
src/main/java/de/neemann/digital/draw/elements/VisualElement.java
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@ -149,30 +149,35 @@ public class VisualElement implements Drawable, Moveable, AttributeListener {
* @return the shape
*/
public Shape getShape() {
if (shape == null)
if (shape == null) {
shape = shapeFactory.getShape(elementName, elementAttributes);
minMax = null;
}
return shape;
}
@Override
public void drawTo(Graphic graphic, boolean highLight) {
drawShape(graphic, highLight);
// draw circle around element
if (highLight) {
GraphicMinMax mm = getMinMax();
Vector delta = mm.getMax().sub(mm.getMin());
int rad = (int) Math.sqrt(delta.x * delta.x + delta.y * delta.y) / 2;
delta = new Vector(rad, rad);
Vector pos = mm.getMax().add(mm.getMin()).div(2);
graphic.drawCircle(pos.sub(delta), pos.add(delta), Style.HIGHLIGHT);
}
}
private void drawShape(Graphic graphic, boolean highLight) {
Graphic gr = new GraphicTransform(graphic, createTransform());
Shape shape = getShape();
shape.drawTo(gr, highLight);
for (Pin p : shape.getPins())
gr.drawCircle(p.getPos().add(-PIN, -PIN), p.getPos().add(PIN, PIN),
p.getDirection() == Pin.Direction.input ? Style.WIRE : Style.WIRE_OUT);
if (highLight && minMax == null && !(graphic instanceof GraphicMinMax)) getMinMax();
if (highLight && minMax != null) {
Vector delta = minMax.getMax().sub(minMax.getMin());
int rad = (int) Math.sqrt(delta.x * delta.x + delta.y * delta.y) / 2;
delta = new Vector(rad, rad);
Vector pos = minMax.getMax().add(minMax.getMin()).div(2);
graphic.drawCircle(pos.sub(delta), pos.add(delta), Style.HIGHLIGHT);
}
}
private Transform createTransform() {
@ -188,7 +193,7 @@ public class VisualElement implements Drawable, Moveable, AttributeListener {
public GraphicMinMax getMinMax() {
if (minMax == null) {
GraphicMinMax mm = new GraphicMinMax();
drawTo(mm, false);
drawShape(mm, false);
minMax = mm;
}
return minMax;
@ -204,16 +209,20 @@ public class VisualElement implements Drawable, Moveable, AttributeListener {
* Create an icon from this element.
* Is used to create the icons in the element menu
*
* @param maxHeight the maximum hight
* @return the icon ore null if the maximum height is exceeded.
* @param maxHeight the maximum height
* @return the icon or null if the maximum height is exceeded.
*/
public ImageIcon createIcon(int maxHeight) {
GraphicMinMax mm = getMinMax();
if (mm.getMax().y - mm.getMin().y > maxHeight * 2)
return null;
double scale = 0.5;
if (mm.getMax().y - mm.getMin().y > maxHeight / scale)
scale = (double) (maxHeight - 1) / (mm.getMax().y - mm.getMin().y + 4);
BufferedImage bi = new BufferedImage((mm.getMax().x - mm.getMin().x + 4) / 2 + 1, (mm.getMax().y - mm.getMin().y + 4) / 2 + 1, BufferedImage.TYPE_INT_ARGB);
int width = (int) Math.round((mm.getMax().x - mm.getMin().x + 4) * scale + 1);
int height = (int) Math.round((mm.getMax().y - mm.getMin().y + 4) * scale + 1);
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D gr = bi.createGraphics();
gr.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
gr.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
@ -222,7 +231,7 @@ public class VisualElement implements Drawable, Moveable, AttributeListener {
gr.setColor(new Color(255, 255, 255, 0));
gr.fillRect(0, 0, bi.getWidth(), bi.getHeight());
gr.scale(0.5, 0.5);
gr.scale(scale, scale);
gr.translate(2 - mm.getMin().x, 2 - mm.getMin().y);
GraphicSwing grs = new GraphicSwing(gr);
drawTo(grs, false);
@ -272,7 +281,6 @@ public class VisualElement implements Drawable, Moveable, AttributeListener {
@Override
public void attributeChanged(AttributeKey key) {
shape = null;
minMax = null;
rotate = elementAttributes.get(AttributeKey.Rotate).getRotation();
}

18
src/main/java/de/neemann/digital/draw/shapes/ShapeFactory.java
View File

@ -72,14 +72,22 @@ public final class ShapeFactory {
return outInfos;
}
public Shape getShape(String partName, ElementAttributes elementAttributes) {
Creator cr = map.get(partName);
/**
* Returns a shape matching the given name.
* If no shape is found, a special "missing shape" shape is returned.
*
* @param elementName the elemnets name
* @param elementAttributes the elements attributes
* @return the shape
*/
public Shape getShape(String elementName, ElementAttributes elementAttributes) {
Creator cr = map.get(elementName);
try {
if (cr == null) {
if (library == null)
throw new NodeException(Lang.get("err_noShapeFoundFor_N", partName));
throw new NodeException(Lang.get("err_noShapeFoundFor_N", elementName));
else {
ElementTypeDescription pt = library.getElementType(partName);
ElementTypeDescription pt = library.getElementType(elementName);
if (pt instanceof LibrarySelector.ElementTypeDescriptionCustom) {
LibrarySelector.ElementTypeDescriptionCustom customDescr = (LibrarySelector.ElementTypeDescriptionCustom) pt;
return new GenericShape(
@ -100,7 +108,7 @@ public final class ShapeFactory {
} else
return cr.create(elementAttributes);
} catch (Exception e) {
return new MissingShape(partName, e);
return new MissingShape(elementName, e);
}
}