private CanvasImage createMenuImage(MenuEntry me) {
CanvasImage result = graphics().createImage(200, 50);
Canvas resultCanvas = result.canvas();
// resultCanvas.setFillGradient(graphics().createLinearGradient(0f, 0f, 200f, 50f,
// {Color.rgb(0, 0, 0), Color.rgb(100, 0, 0)}, {0, 0, 200, 50}))
resultCanvas.setFillColor(Color.argb(50, 255, 255, 255));
resultCanvas.fillRect(0, 0, result.width(), result.height());
resultCanvas.setFillColor(Color.rgb(0, 0, 0));
resultCanvas.drawText(me.getLabel(), result.width() / 2, result.height() / 2);
return result;
}
/**
* Returns a (created on demand, then cached) image used when filling solid color quads or
* triangles.
*/
Image fillImage() {
if (fillImage == null) {
CanvasImage image = platform.graphics().createImage(1, 1);
image.canvas().setFillColor(0xFFFFFFFF).fillRect(0, 0, image.width(), image.height());
fillImage = image;
}
return fillImage;
}
@Override
public void init() {
GroupLayer rootLayer = graphics().rootLayer();
final CanvasImage img = graphics().createImage(100, 50);
img.canvas()
.setFillGradient(
graphics()
.createLinearGradient(
0, 0, 100, 100, new int[] {0xFF0000FF, 0xFF00FF00}, new float[] {0, 1}));
img.canvas().fillRoundRect(0, 0, 100, 50, 10);
// create an immediate layer that draws the boundaries of our clipped group layers
rootLayer.add(
graphics()
.createImmediateLayer(
new ImmediateLayer.Renderer() {
public void render(Surface surf) {
// draw the border of our various clipped groups
surf.setFillColor(0xFF000000);
outline(surf, g1);
outline(surf, g2);
outline(surf, g3);
outline(surf, g4);
}
protected void outline(Surface surf, Layer.HasSize ly) {
drawRect(
surf,
ly.transform().tx() - ly.originX(),
ly.transform().ty() - ly.originY(),
ly.width(),
ly.height());
}
protected void drawRect(Surface surf, float x, float y, float w, float h) {
float left = x - 1, top = y - 1, right = x + w + 2, bot = y + h + 2;
surf.drawLine(left, top, right, top, 1);
surf.drawLine(right, top, right, bot, 1);
surf.drawLine(left, top, left, bot, 1);
surf.drawLine(left, bot, right, bot, 1);
}
}));
// create a group layer with a static clip, and a rotating image inside
g1 = graphics().createGroupLayer(100, 100);
// test the origin not being at zero/zero
g1.setOrigin(50, 0);
i1 = graphics().createImageLayer(img);
i1.setOrigin(i1.width() / 2, i1.height() / 2);
g1.addAt(i1, 50, 50);
rootLayer.addAt(g1, 75, 25);
g2 = graphics().createGroupLayer(100, 100);
g2.setOrigin(50, 50);
g2.addAt(graphics().createImageLayer(img), (100 - img.width()) / 2, (100 - img.height()) / 2);
rootLayer.addAt(g2, 200, 75);
// nest a group layer inside with an animated origin
inner = graphics().createGroupLayer();
inner.addAt(
graphics().createImageLayer(img), (100 - img.width()) / 2, (100 - img.height()) / 2);
g3 = graphics().createGroupLayer(100, 100);
g3.add(inner);
rootLayer.addAt(g3, 275, 25);
// create a group layer with a static clip, and a rotating surface layer inside
g4 = graphics().createGroupLayer(100, 100);
s1 = graphics().createSurfaceLayer(100, 50);
s1.surface().setFillColor(0xFF99CCFF).fillRect(0, 0, 100, 50);
s1.setOrigin(s1.width() / 2, s1.height() / 2);
g4.addAt(s1, 50, 50);
rootLayer.addAt(g4, 400, 25);
}