Java Code Examples for com.badlogic.gdx.scenes.scene2d.utils.Drawable#getBottomHeight()

public void layout(CustomListStyle style) {
	this.style = style;

	BitmapFont font = style.font;
	Drawable selectedDrawable = style.selection;

	textOffsetX = selectedDrawable.getLeftWidth();
	textOffsetY = selectedDrawable.getTopHeight() - font.getDescent();

	itemHeight = font.getCapHeight() - font.getDescent() * 2;

	if (hasSubtitle()) {
		itemHeight += style.subtitleFont.getCapHeight() - style.subtitleFont.getDescent() * 2;
		;
	}

	itemHeight += selectedDrawable.getTopHeight() + selectedDrawable.getBottomHeight();
}
 

boolean calculatePositionAndValue(float x, float y) {
    final Drawable bg = style.background;

    float value;
    float oldPosition = progressPos;

    if (vertical) {
        float height = getHeight() - bg.getTopHeight() - bg.getBottomHeight();
        progressPos = y - bg.getBottomHeight();
        value = min + (max - min) * (progressPos / height);
        progressPos = Math.max(0, progressPos);
        progressPos = Math.min(height, progressPos);
    } else {
        float width = getWidth() - bg.getLeftWidth() - bg.getRightWidth();
        progressPos = x - bg.getLeftWidth();
        value = min + (max - min) * (progressPos / width);
        progressPos = Math.max(0, progressPos);
        progressPos = Math.min(width, progressPos);
    }

    float oldValue = value;
    boolean valueSet = setValue(value);
    if (value == oldValue) {
        progressPos = oldPosition;
    }
    return valueSet;
}
 

protected float getTextY (BitmapFont font, Drawable background) {
	float height = getHeight();
	float textY = textHeight / 2 + font.getDescent();
	if (background != null) {
		float bottom = background.getBottomHeight();
		textY = textY + (height - background.getTopHeight() - bottom) / 2 + bottom;
	} else {
		textY = textY + height / 2;
	}
	if (font.usesIntegerPositions()) textY = (int) textY;
	return textY;
}
 

@Override
protected void sizeChanged () {
	lastText = null; // Cause calculateOffsets to recalculate the line breaks.

	// The number of lines showed must be updated whenever the height is updated
	BitmapFont font = style.font;
	Drawable background = style.background;
	float availableHeight = getHeight() - (background == null ? 0 : background.getBottomHeight() + background.getTopHeight());
	linesShowing = (int) Math.floor(availableHeight / font.getLineHeight());
}
 

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

	Drawable background;
	if (disabled && style.backgroundDisabled != null)
		background = style.backgroundDisabled;
	else if (selectBoxList.hasParent() && style.backgroundOpen != null)
		background = style.backgroundOpen;
	else if (clickListener.isOver() && style.backgroundOver != null)
		background = style.backgroundOver;
	else if (style.background != null)
		background = style.background;
	else
		background = null;
	BitmapFont font = style.font;
	Color fontColor = (disabled && style.disabledFontColor != null) ? style.disabledFontColor : style.fontColor;

	Color color = getColor();
	float x = getX(), y = getY();
	float width = getWidth(), height = getHeight();

	batch.setColor(color.r, color.g, color.b, color.a * parentAlpha);
	if (background != null)
		background.draw(batch, x, y, width, height);

	T selected = selection.first();
	if (selected != null) {
		if (background != null) {
			width -= background.getLeftWidth() + background.getRightWidth();
			height -= background.getBottomHeight() + background.getTopHeight();
			x += background.getLeftWidth();
			y += (int) (height / 2 + background.getBottomHeight() + font.getData().capHeight / 2);
		} else {
			y += (int) (height / 2 + font.getData().capHeight / 2);
		}
		font.setColor(fontColor.r, fontColor.g, fontColor.b, fontColor.a * parentAlpha);
		drawItem(batch, font, selected, x, y, width);
	}
}
 

@Override
public void draw(Batch batch, float parentAlpha) {
    ProgressBarStyle style = this.style;
    final Drawable bg = style.background;
    final Drawable knobBefore = style.progress;

    Color color = getColor();
    float x = getX();
    float y = getY();
    float width = getWidth();
    float height = getHeight();
    float value = getVisualValue();

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

    if (vertical) {
        bg.draw(batch, x + (int) ((width - bg.getMinWidth()) * 0.5f), y, bg.getMinWidth(), height);

        float progressPosHeight = height - (bg.getTopHeight() + bg.getBottomHeight());
        if (min != max) {
            progressPos = (value - min) / (max - min) * progressPosHeight;
            progressPos = Math.max(0, progressPos);
            progressPos = Math.min(progressPosHeight, progressPos) + bg.getBottomHeight();
        }

        if (knobBefore != null) {
            knobBefore.draw(batch, x + (int) ((width - knobBefore.getMinWidth()) * 0.5f), y, knobBefore.getMinWidth(),
                (int) progressPos);
        }
    } else {
        bg.draw(batch, x, y + (int) ((height - bg.getMinHeight()) * 0.5f), width, bg.getMinHeight());

        float progressPosWidth = width - (bg.getLeftWidth() + bg.getRightWidth());
        if (min != max) {
            progressPos = (value - min) / (max - min) * progressPosWidth;
            progressPos = Math.max(0, progressPos);
            progressPos = Math.min(progressPosWidth, progressPos) + bg.getLeftWidth();
        }

        if (knobBefore != null) {
            knobBefore.draw(batch, x, y + (int) ((height - knobBefore.getMinHeight()) * 0.5f), (int) progressPos,
                knobBefore.getMinHeight());
        }
    }
    super.draw(batch, parentAlpha);
}
 

public void show(Stage stage) {
	if (list.isTouchable())
		return;

	stage.removeCaptureListener(hideListener);
	stage.addCaptureListener(hideListener);
	stage.addActor(this);

	selectBox.localToStageCoordinates(screenPosition.set(0, 0));

	// Show the list above or below the select box, limited to a number
	// of items and the available height in the stage.
	float itemHeight = list.getItemHeight();
	float height = itemHeight
			* (maxListCount <= 0 ? list.getItems().size : Math.min(maxListCount, list.getItems().size));
	Drawable scrollPaneBackground = getStyle().background;
	if (scrollPaneBackground != null)
		height += scrollPaneBackground.getTopHeight() + scrollPaneBackground.getBottomHeight();
	Drawable listBackground = list.getStyle().background;
	if (listBackground != null)
		height += listBackground.getTopHeight() + listBackground.getBottomHeight();

	float heightBelow = screenPosition.y;
	float heightAbove = stage.getCamera().viewportHeight - screenPosition.y - selectBox.getHeight();
	boolean below = true;
	if (height > heightBelow) {
		if (heightAbove > heightBelow) {
			below = false;
			height = Math.min(height, heightAbove);
		} else
			height = heightBelow;
	}

	if (below)
		setY(screenPosition.y - height);
	else
		setY(screenPosition.y + selectBox.getHeight());
	setX(screenPosition.x);
	setSize(Math.max(getPrefWidth(), selectBox.getWidth()), height);

	validate();
	scrollTo(0, list.getHeight() - selectedIndex * itemHeight - itemHeight / 2, 0, 0, true, true);
	updateVisualScroll();

	previousScrollFocus = null;
	Actor actor = stage.getScrollFocus();
	if (actor != null && !actor.isDescendantOf(this))
		previousScrollFocus = actor;
	stage.setScrollFocus(this);

	list.setTouchable(Touchable.enabled);
	clearActions();
	// getColor().a = 0;
	// addAction(fadeIn(0.3f, Interpolation.fade));
}
 

public void layout() {
	final BitmapFont font = style.font;
	final BitmapFont subfont = style.subtitleFont;
	final Drawable selectedDrawable = style.selection;

	cellRenderer.layout(style);

	GlyphLayout textLayout = new GlyphLayout();

	prefWidth = 0;
	for (int i = 0; i < items.size; i++) {

		textLayout.setText(font, cellRenderer.getCellTitle(items.get(i)));

		prefWidth = Math.max(textLayout.width, prefWidth);
		
		if (cellRenderer.hasImage()) {
			TextureRegion r = cellRenderer.getCellImage(items.get(i));

			float ih = r.getRegionHeight();
			float iw = r.getRegionWidth();

			if (ih > getItemHeight() - 10) {
				ih = getItemHeight() - 10;
				iw *= ih / r.getRegionHeight();
			}

			prefWidth = Math.max(iw + textLayout.width, prefWidth);
		}

		if (cellRenderer.hasSubtitle()) {
			String subtitle = cellRenderer.getCellSubTitle(items.get(i));

			if (subtitle != null) {
				textLayout.setText(subfont, subtitle);
				prefWidth = Math.max(textLayout.width, prefWidth);
			}
		}
	}
	
	prefWidth += selectedDrawable.getLeftWidth() + selectedDrawable.getRightWidth();

	prefHeight = items.size * cellRenderer.getItemHeight();

	Drawable background = style.background;
	if (background != null) {
		prefWidth += background.getLeftWidth() + background.getRightWidth();
		prefHeight += background.getTopHeight() + background.getBottomHeight();
	}
}
 

public void show(Stage stage) {
	if (list.isTouchable())
		return;

	stage.removeCaptureListener(hideListener);
	stage.addCaptureListener(hideListener);
	stage.addActor(this);
	stage.addActor(filterField);

	selectBox.localToStageCoordinates(screenPosition.set(0, 0));

	// Show the list above or below the select box, limited to a number of items and
	// the available height in the stage.
	float itemHeight = list.getItemHeight();
	float height = itemHeight
			* (maxListCount <= 0 ? selectBox.items.size : Math.min(maxListCount, selectBox.items.size));
	Drawable scrollPaneBackground = getStyle().background;
	if (scrollPaneBackground != null)
		height += scrollPaneBackground.getTopHeight() + scrollPaneBackground.getBottomHeight();
	Drawable listBackground = list.getStyle().background;
	if (listBackground != null)
		height += listBackground.getTopHeight() + listBackground.getBottomHeight();

	float heightBelow = screenPosition.y - itemHeight;
	float heightAbove = stage.getCamera().viewportHeight - screenPosition.y - selectBox.getHeight();
	boolean below = true;
	if (height > heightBelow) {
		if (heightAbove > heightBelow) {
			below = false;
			height = Math.min(height, heightAbove);
		} else
			height = heightBelow;
	}

	if (below)
		setY(screenPosition.y - height);
	else
		setY(screenPosition.y + selectBox.getHeight());
	setX(screenPosition.x);
	setHeight(height);
	validate();
	float width = Math.max(getPrefWidth(), selectBox.getWidth());
	if (getPrefHeight() > height && !isScrollingDisabledY())
		width += getScrollBarWidth();
	setWidth(width);

	filterField.setX(getX());
	filterField.setWidth(getWidth());
	filterField.setHeight(filterField.getPrefHeight());
	filterField.setY(getY() + getHeight() - filterField.getHeight());
	stage.setKeyboardFocus(filterField);
	filterField.validate();
	setY(getY() - filterField.getHeight());

	validate();
	scrollTo(0, list.getHeight() - selectBox.getSelectedIndex() * itemHeight - itemHeight / 2, 0, 0, true,
			true);
	updateVisualScroll();

	previousScrollFocus = null;
	Actor actor = stage.getScrollFocus();
	if (actor != null && !actor.isDescendantOf(this))
		previousScrollFocus = actor;
	stage.setScrollFocus(this);

	list.getSelection().set(selectBox.getSelected());
	list.setTouchable(Touchable.enabled);
	clearActions();
	selectBox.onShow(this, below);

	filterField.setText("");
	setListItems(items.toArray());
}