com.badlogic.gdx.scenes.scene2d.utils.ScissorStack Java Examples

@Override
public void draw(Batch batch, float parentAlpha) {
	batch.flush();
	getStage().calculateScissors(widgetAreaBounds.set(getX(), getY(), getWidth(), getHeight()), scissorBounds);
	if (ScissorStack.pushScissors(scissorBounds)) {
		super.draw(batch, parentAlpha);
		batch.flush();
		ScissorStack.popScissors();
	}
}
 

@Override
public void draw (Batch batch, float parentAlpha) {
	if (widget == null) return;

	validate();

	// Setup transform for this group.
	applyTransform(batch, computeTransform());

	if (scrollX) hKnobBounds.x = hScrollBounds.x + (int)((hScrollBounds.width - hKnobBounds.width) * getVisualScrollPercentX());
	if (scrollY)
		vKnobBounds.y = vScrollBounds.y + (int)((vScrollBounds.height - vKnobBounds.height) * (1 - getVisualScrollPercentY()));

	updateWidgetPosition();

	// Draw the background ninepatch.
	Color color = getColor();
	batch.setColor(color.r, color.g, color.b, color.a * parentAlpha);
	if (style.background != null) style.background.draw(batch, 0, 0, getWidth(), getHeight());

	// Caculate the scissor bounds based on the batch transform, the available widget area and the camera transform. We need to
	// project those to screen coordinates for OpenGL ES to consume.
	getStage().calculateScissors(widgetAreaBounds, scissorBounds);

	// Enable scissors for widget area and draw the widget.
	batch.flush();
	if (ScissorStack.pushScissors(scissorBounds)) {
		drawChildren(batch, parentAlpha);
		batch.flush();
		ScissorStack.popScissors();
	}

	// Render scrollbars and knobs on top if they will be visible
	float alpha = color.a * parentAlpha * Interpolation.fade.apply(fadeAlpha / fadeAlphaSeconds);
	drawScrollBars(batch, color.r, color.g, color.b, alpha);

	resetTransform(batch);
}
 

public void drawDebug (ShapeRenderer shapes) {
	shapes.flush();
	applyTransform(shapes, computeTransform());
	if (ScissorStack.pushScissors(scissorBounds)) {
		drawDebugChildren(shapes);
		ScissorStack.popScissors();
	}
	resetTransform(shapes);
}
 

@Override
public void draw(Batch batch, float parentAlpha) {
    validate();

    Color color = getColor();

    applyTransform(batch, computeTransform());
    // Matrix4 transform = batch.getTransformMatrix();
    if (firstWidget != null) {
        getStage().calculateScissors(firstWidgetBounds, firstScissors);
        if (ScissorStack.pushScissors(firstScissors)) {
            if (firstWidget.isVisible()) firstWidget.draw(batch, parentAlpha * color.a);
            batch.flush();
            ScissorStack.popScissors();
        }
    }
    if (secondWidget != null) {
        getStage().calculateScissors(secondWidgetBounds, secondScissors);
        if (ScissorStack.pushScissors(secondScissors)) {
            if (secondWidget.isVisible()) secondWidget.draw(batch, parentAlpha * color.a);
            batch.flush();
            ScissorStack.popScissors();
        }
    }

    Drawable handle = style.handle;
    if (mouseOnHandle && isTouchable() && style.handleOver != null) handle = style.handleOver;
    batch.setColor(color.r, color.g, color.b, parentAlpha * color.a);
    handle.draw(batch, handleBounds.x, handleBounds.y, handleBounds.width, handleBounds.height);
    resetTransform(batch);

}
 

@Override
public void draw(Batch batch, float parentAlpha) {
    validate();

    Color color = getColor();

    applyTransform(batch, computeTransform());

    SnapshotArray<Actor> actors = getChildren();
    for (int i = 0; i < actors.size; i++) {
        Actor actor = actors.get(i);
        Rectangle bounds = widgetBounds.get(i);
        Rectangle scissor = scissors.get(i);
        getStage().calculateScissors(bounds, scissor);
        if (ScissorStack.pushScissors(scissor)) {
            if (actor.isVisible()) actor.draw(batch, parentAlpha * color.a);
            batch.flush();
            ScissorStack.popScissors();
        }
    }

    batch.setColor(color.r, color.g, color.b, parentAlpha * color.a);

    Drawable handle = style.handle;
    Drawable handleOver = style.handle;
    if (isTouchable() && style.handleOver != null) handleOver = style.handleOver;
    for (Rectangle rect : handleBounds) {
        if (this.handleOver == rect) {
            handleOver.draw(batch, rect.x, rect.y, rect.width, rect.height);
        } else {
            handle.draw(batch, rect.x, rect.y, rect.width, rect.height);
        }
    }
    resetTransform(batch);
}
 

@Override
public void calculateScissors (Rectangle localRect, Rectangle scissorRect) {
	ScissorStack.calculateScissors(cameraUI, viewport.getScreenX(), viewport.getScreenY(), viewport.getScreenWidth(), viewport.getScreenHeight(), batch.getTransformMatrix(), localRect, scissorRect);
	Matrix4 transformMatrix;
	if (shapeRenderer != null && shapeRenderer.isDrawing())
		transformMatrix = shapeRenderer.getTransformMatrix();
	else
		transformMatrix = batch.getTransformMatrix();
	ScissorStack.calculateScissors(cameraUI, viewport.getScreenX(), viewport.getScreenY(), viewport.getScreenWidth(), viewport.getScreenHeight(), transformMatrix, localRect, scissorRect);
}
 

@Override
public void draw (Batch batch, float parentAlpha) {
	validate();

	Color color = getColor();

	applyTransform(batch, computeTransform());

	SnapshotArray<Actor> actors = getChildren();
	for (int i = 0; i < actors.size; i++) {
		Actor actor = actors.get(i);
		Rectangle bounds = widgetBounds.get(i);
		Rectangle scissor = scissors.get(i);
		getStage().calculateScissors(bounds, scissor);
		if (ScissorStack.pushScissors(scissor)) {
			if (actor.isVisible()) actor.draw(batch, parentAlpha * color.a);
			batch.flush();
			ScissorStack.popScissors();
		}
	}

	batch.setColor(color.r, color.g, color.b, parentAlpha * color.a);

	Drawable handle = style.handle;
	Drawable handleOver = style.handle;
	if (isTouchable() && style.handleOver != null) handleOver = style.handleOver;
	for (Rectangle rect : handleBounds) {
		if (this.handleOver == rect) {
			handleOver.draw(batch, rect.x, rect.y, rect.width, rect.height);
		} else {
			handle.draw(batch, rect.x, rect.y, rect.width, rect.height);
		}
	}
	resetTransform(batch);
}
 

@Override
public void draw (Batch batch, float parentAlpha) {
	validate();

	Color color = getColor();

	applyTransform(batch, computeTransform());
	// Matrix4 transform = batch.getTransformMatrix();
	if (firstWidget != null) {
		getStage().calculateScissors(firstWidgetBounds, firstScissors);
		if (ScissorStack.pushScissors(firstScissors)) {
			if (firstWidget.isVisible()) firstWidget.draw(batch, parentAlpha * color.a);
			batch.flush();
			ScissorStack.popScissors();
		}
	}
	if (secondWidget != null) {
		getStage().calculateScissors(secondWidgetBounds, secondScissors);
		if (ScissorStack.pushScissors(secondScissors)) {
			if (secondWidget.isVisible()) secondWidget.draw(batch, parentAlpha * color.a);
			batch.flush();
			ScissorStack.popScissors();
		}
	}

	Drawable handle = style.handle;
	if (mouseOnHandle && isTouchable() && style.handleOver != null) handle = style.handleOver;
	batch.setColor(color.r, color.g, color.b, parentAlpha * color.a);
	handle.draw(batch, handleBounds.x, handleBounds.y, handleBounds.width, handleBounds.height);
	resetTransform(batch);

}