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Hintergund als ColorLayer implementiert

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ngb
2022-01-02 22:14:36 +01:00
parent f280eb5acc
commit 9ab06414c0
1 changed files with 15 additions and 2 deletions
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17
src/schule/ngb/zm/Zeichenmaschine.java
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@@ -1,6 +1,6 @@
package schule.ngb.zm;
import schule.ngb.zm.formen.ShapesLayer;
import schule.ngb.zm.shapes.ShapesLayer;
import javax.swing.*;
import javax.swing.event.MouseInputListener;
@@ -27,6 +27,8 @@ public class Zeichenmaschine extends Constants implements MouseInputListener, Ke
*/
protected Zeichenleinwand canvas;
protected ColorLayer background;
protected DrawingLayer drawing;
protected ShapesLayer shapes;
@@ -91,6 +93,7 @@ public class Zeichenmaschine extends Constants implements MouseInputListener, Ke
framesPerSecond = STD_FPS;
background = getBackgroundLayer();
drawing = getDrawingLayer();
shapes = getShapesLayer();
@@ -187,13 +190,23 @@ public class Zeichenmaschine extends Constants implements MouseInputListener, Ke
public final void addLayer( Layer layer ) {
canvas.addLayer(layer);
layer.setSize(getWidth(), getHeight());
}
public final ColorLayer getBackgroundLayer() {
ColorLayer layer = canvas.getLayer(ColorLayer.class);
if( layer == null ) {
layer = new ColorLayer(STD_BACKGROUND);
canvas.addLayer(0, layer);
}
return layer;
}
public final DrawingLayer getDrawingLayer() {
DrawingLayer layer = canvas.getLayer(DrawingLayer.class);
if( layer == null ) {
layer = new DrawingLayer(getWidth(), getHeight());
canvas.addLayer(0, layer);
canvas.addLayer(1, layer);
}
return layer;
}