public void setItems(Object[] objects) {
if (objects == null) throw new IllegalArgumentException("items cannot be null.");
if (!(objects instanceof String[])) {
String[] strings = new String[objects.length];
for (int i = 0, n = objects.length; i < n; i++) strings[i] = String.valueOf(objects[i]);
objects = strings;
}
this.items = (String[]) objects;
selectedIndex = 0;
Drawable bg = style.background;
BitmapFont font = style.font;
prefHeight =
Math.max(
bg.getTopHeight() + bg.getBottomHeight() + font.getCapHeight() - font.getDescent() * 2,
bg.getMinHeight());
float max = 0;
for (int i = 0; i < items.length; i++) max = Math.max(font.getBounds(items[i]).width, max);
prefWidth = bg.getLeftWidth() + bg.getRightWidth() + max;
prefWidth =
Math.max(
prefWidth,
max
+ style.listBackground.getLeftWidth()
+ style.listBackground.getRightWidth()
+ 2 * style.itemSpacing);
invalidateHierarchy();
}
/** Draws selection rectangle * */
protected void drawSelection(Drawable selection, Batch batch, BitmapFont font, float x, float y) {
selection.draw(
batch,
x + textOffset + selectionX + fontOffset,
y - textHeight - font.getDescent(),
selectionWidth,
textHeight);
}
private void layout() {
final BitmapFont font = style.font;
final Drawable listSelection = style.listSelection;
final Drawable listBackground = style.listBackground;
itemHeight = font.getCapHeight() + -font.getDescent() * 2 + style.itemSpacing;
itemHeight += listSelection.getTopHeight() + listSelection.getBottomHeight();
textOffsetX = listSelection.getLeftWidth() + style.itemSpacing;
textOffsetY = listSelection.getTopHeight() + -font.getDescent() + style.itemSpacing / 2;
setWidth(SelectBox.this.getWidth());
setHeight(
items.length * itemHeight
+ listBackground.getTopHeight()
+ listBackground.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();
}
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;
}
protected void drawCursor(Drawable cursorPatch, Batch batch, BitmapFont font, float x, float y) {
cursorPatch.draw(
batch,
x
+ textOffset
+ glyphPositions.get(cursor)
- glyphPositions.get(visibleTextStart)
+ fontOffset
+ font.getData().cursorX,
y - textHeight - font.getDescent(),
cursorPatch.getMinWidth(),
textHeight);
}
@Override
public void renderContent(@NtN Batch batch, @NtN Vector2 pos, @NtN Vector2 size) {
batch.flush();
ScissorStack.pushScissors(new Rectangle(pos.x, pos.y, size.x, size.y));
checkGlyphLayout(size);
float yOffset =
(font.getLineHeight() - font.getAscent() - font.getCapHeight() - font.getDescent()) / 2;
font.draw(
batch, glyphLayout, pos.x, pos.y + size.y - yOffset + currentLine * font.getLineHeight());
batch.flush();
ScissorStack.popScissors();
}
public void setText(String text) {
if (text == null) throw new IllegalArgumentException("text cannot be null.");
BitmapFont font = style.font;
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < text.length(); i++) {
if (maxLength > 0 && buffer.length() + 1 > maxLength) {
break;
}
char c = text.charAt(i);
if (font.containsCharacter(c) && (filter == null || filter.acceptChar(this, c)))
buffer.append(c);
}
this.text = buffer.toString();
updateDisplayText();
cursor = 0;
clearSelection();
textBounds.set(font.getBounds(displayText));
textBounds.height -= font.getDescent() * 2;
font.computeGlyphAdvancesAndPositions(displayText, glyphAdvances, glyphPositions);
}
@Override
public void draw(SpriteBatch batch, float parentAlpha) {
final BitmapFont font = style.font;
final Color fontColor = disabled ? style.disabledFontColor : style.fontColor;
final Drawable selection = style.selection;
final Drawable cursorPatch = style.cursor;
final Drawable background = style.background;
Color color = getColor();
float x = getX();
float y = getY();
float width = getWidth();
float height = getHeight();
float textY = textBounds.height / 2 + font.getDescent();
batch.setColor(color.r, color.g, color.b, color.a * parentAlpha);
float bgLeftWidth = 0;
if (background != null) {
background.draw(batch, x, y, width, height);
bgLeftWidth = background.getLeftWidth();
float bottom = background.getBottomHeight();
textY = (int) (textY + (height - background.getTopHeight() - bottom) / 2 + bottom);
} else textY = (int) (textY + height / 2);
calculateOffsets();
Stage stage = getStage();
boolean focused = stage != null && stage.getKeyboardFocus() == this;
if (focused && hasSelection && selection != null) {
selection.draw(
batch,
x + selectionX + bgLeftWidth + renderOffset,
y + textY - textBounds.height - font.getDescent(),
selectionWidth,
textBounds.height + font.getDescent() / 2);
}
float yOffset = font.isFlipped() ? -textBounds.height : 0;
if (displayText.length() == 0) {
if (!focused && messageText != null) {
if (style.messageFontColor != null) {
font.setColor(
style.messageFontColor.r,
style.messageFontColor.g,
style.messageFontColor.b,
style.messageFontColor.a * parentAlpha);
} else font.setColor(0.7f, 0.7f, 0.7f, parentAlpha);
BitmapFont messageFont = style.messageFont != null ? style.messageFont : font;
messageFont.draw(batch, messageText, x + bgLeftWidth, y + textY + yOffset);
}
} else {
font.setColor(fontColor.r, fontColor.g, fontColor.b, fontColor.a * parentAlpha);
font.draw(
batch,
displayText,
x + bgLeftWidth + textOffset,
y + textY + yOffset,
visibleTextStart,
visibleTextEnd);
}
if (focused && !disabled) {
blink();
if (cursorOn && cursorPatch != null) {
cursorPatch.draw(
batch,
x
+ bgLeftWidth
+ textOffset
+ glyphPositions.get(cursor)
- glyphPositions.items[visibleTextStart]
- 1,
y + textY - textBounds.height - font.getDescent(),
cursorPatch.getMinWidth(),
textBounds.height + font.getDescent() / 2);
}
}
}
public void draw(
Batch batch,
float parentAlpha,
T item,
boolean selected,
float x,
float y,
float width,
float height) {
BitmapFont font = style.font;
Drawable selectedDrawable = style.selection;
Color fontColorSelected = style.fontColorSelected;
Color fontColorUnselected = style.fontColorUnselected;
if (selected) {
selectedDrawable.draw(batch, x, y - height, width, height);
font.setColor(
fontColorSelected.r,
fontColorSelected.g,
fontColorSelected.b,
fontColorSelected.a * parentAlpha);
} else {
font.setColor(
fontColorUnselected.r,
fontColorUnselected.g,
fontColorUnselected.b,
fontColorUnselected.a * parentAlpha);
}
if (hasImage()) {
TextureRegion r = getCellImage(item);
float ih = r.getRegionHeight();
float iw = r.getRegionWidth();
if (ih > getItemHeight() - MARGIN) {
ih = getItemHeight() - MARGIN;
iw *= ih / r.getRegionHeight();
}
batch.draw(r, x, y - ih - MARGIN / 2, iw, ih);
x += iw;
}
font.draw(batch, getCellTitle(item), x + textOffsetX, y - textOffsetY);
if (hasSubtitle()) {
if (selected) {
style.subtitleFont.setColor(
fontColorSelected.r,
fontColorSelected.g,
fontColorSelected.b,
fontColorSelected.a * parentAlpha * 0.5f);
} else {
style.subtitleFont.setColor(
fontColorUnselected.r,
fontColorUnselected.g,
fontColorUnselected.b,
fontColorUnselected.a * parentAlpha * 0.5f);
}
style.subtitleFont.draw(
batch,
getCellSubTitle(item),
x + textOffsetX,
y - textOffsetY - (font.getCapHeight() - font.getDescent() * 2));
}
}
