+ /**
+ * Render one fullwidth cell.
+ *
+ * @param x column coordinate. 0 is the left-most column.
+ * @param y row coordinate. 0 is the top-most row.
+ * @param cell the cell to draw
+ */
+ public final void putFullwidthCharXY(final int x, final int y,
+ final Cell cell) {
+
+ int cellWidth = getTextWidth();
+ int cellHeight = getTextHeight();
+
+ if (lastTextHeight != cellHeight) {
+ glyphMaker = GlyphMaker.getInstance(cellHeight);
+ lastTextHeight = cellHeight;
+ }
+ BufferedImage image = glyphMaker.getImage(cell, cellWidth * 2,
+ cellHeight);
+ BufferedImage leftImage = image.getSubimage(0, 0, cellWidth,
+ cellHeight);
+ BufferedImage rightImage = image.getSubimage(cellWidth, 0, cellWidth,
+ cellHeight);
+
+ Cell left = new Cell(cell);
+ left.setImage(leftImage);
+ left.setWidth(Cell.Width.LEFT);
+ putCharXY(x, y, left);
+
+ Cell right = new Cell(cell);
+ right.setImage(rightImage);
+ right.setWidth(Cell.Width.RIGHT);
+ putCharXY(x + 1, y, right);
+ }
+
+ /**
+ * Render one fullwidth character with attributes.
+ *
+ * @param x column coordinate. 0 is the left-most column.
+ * @param y row coordinate. 0 is the top-most row.
+ * @param ch character to draw
+ * @param attr attributes to use (bold, foreColor, backColor)
+ */
+ public final void putFullwidthCharXY(final int x, final int y,
+ final int ch, final CellAttributes attr) {
+
+ Cell cell = new Cell(ch, attr);
+ putFullwidthCharXY(x, y, cell);
+ }
+
+ /**
+ * Render one fullwidth character with attributes.
+ *
+ * @param x column coordinate. 0 is the left-most column.
+ * @param y row coordinate. 0 is the top-most row.
+ * @param ch character to draw
+ */
+ public final void putFullwidthCharXY(final int x, final int y,
+ final int ch) {
+
+ Cell cell = new Cell(ch);
+ cell.setAttr(getAttrXY(x, y));
+ putFullwidthCharXY(x, y, cell);
+ }
+
+ /**
+ * Invert the cell color at a position, including both halves of a
+ * double-width cell.
+ *
+ * @param x column position
+ * @param y row position
+ */
+ public void invertCell(final int x, final int y) {
+ invertCell(x, y, false);
+ }
+
+ /**
+ * Invert the cell color at a position.
+ *
+ * @param x column position
+ * @param y row position
+ * @param onlyThisCell if true, only invert this cell, otherwise invert
+ * both halves of a double-width cell if necessary
+ */
+ public void invertCell(final int x, final int y,
+ final boolean onlyThisCell) {
+
+ Cell cell = getCharXY(x, y);
+ if (cell.isImage()) {
+ cell.invertImage();
+ }
+ if (cell.getForeColorRGB() < 0) {
+ cell.setForeColor(cell.getForeColor().invert());
+ } else {
+ cell.setForeColorRGB(cell.getForeColorRGB() ^ 0x00ffffff);
+ }
+ if (cell.getBackColorRGB() < 0) {
+ cell.setBackColor(cell.getBackColor().invert());
+ } else {
+ cell.setBackColorRGB(cell.getBackColorRGB() ^ 0x00ffffff);
+ }
+ putCharXY(x, y, cell);
+ if ((onlyThisCell == true) || (cell.getWidth() == Cell.Width.SINGLE)) {
+ return;
+ }
+
+ // This cell is one half of a fullwidth glyph. Invert the other
+ // half.
+ if (cell.getWidth() == Cell.Width.LEFT) {
+ if (x < width - 1) {
+ Cell rightHalf = getCharXY(x + 1, y);
+ if (rightHalf.getWidth() == Cell.Width.RIGHT) {
+ invertCell(x + 1, y, true);
+ return;
+ }
+ }
+ }
+ if (cell.getWidth() == Cell.Width.RIGHT) {
+ if (x > 0) {
+ Cell leftHalf = getCharXY(x - 1, y);
+ if (leftHalf.getWidth() == Cell.Width.LEFT) {
+ invertCell(x - 1, y, true);
+ }
+ }
+ }
+ }
+
+ /**
+ * Set a selection area on the screen.
+ *
+ * @param x0 the starting X position of the selection
+ * @param y0 the starting Y position of the selection
+ * @param x1 the ending X position of the selection
+ * @param y1 the ending Y position of the selection
+ * @param rectangle if true, this is a rectangle select
+ */
+ public void setSelection(final int x0, final int y0,
+ final int x1, final int y1, final boolean rectangle) {
+
+ int startX = x0;
+ int startY = y0;
+ int endX = x1;
+ int endY = y1;
+
+ if (((x1 < x0) && (y1 == y0))
+ || (y1 < y0)
+ ) {
+ // The user dragged from bottom-to-top and/or right-to-left.
+ // Reverse the coordinates for the inverted section.
+ startX = x1;
+ startY = y1;
+ endX = x0;
+ endY = y0;
+ }
+ if (rectangle) {
+ for (int y = startY; y <= endY; y++) {
+ for (int x = startX; x <= endX; x++) {
+ invertCell(x, y);
+ }
+ }
+ } else {
+ if (endY > startY) {
+ for (int x = startX; x < width; x++) {
+ invertCell(x, startY);
+ }
+ for (int y = startY + 1; y < endY; y++) {
+ for (int x = 0; x < width; x++) {
+ invertCell(x, y);
+ }
+ }
+ for (int x = 0; x <= endX; x++) {
+ invertCell(x, endY);
+ }
+ } else {
+ assert (startY == endY);
+ for (int x = startX; x <= endX; x++) {
+ invertCell(x, startY);
+ }
+ }
+ }
+ }
+
+ /**
+ * Copy the screen selection area to the clipboard.
+ *
+ * @param clipboard the clipboard to use
+ * @param x0 the starting X position of the selection
+ * @param y0 the starting Y position of the selection
+ * @param x1 the ending X position of the selection
+ * @param y1 the ending Y position of the selection
+ * @param rectangle if true, this is a rectangle select
+ */
+ public void copySelection(final Clipboard clipboard,
+ final int x0, final int y0, final int x1, final int y1,
+ final boolean rectangle) {
+
+ StringBuilder sb = new StringBuilder();
+
+ int startX = x0;
+ int startY = y0;
+ int endX = x1;
+ int endY = y1;
+
+ if (((x1 < x0) && (y1 == y0))
+ || (y1 < y0)
+ ) {
+ // The user dragged from bottom-to-top and/or right-to-left.
+ // Reverse the coordinates for the inverted section.
+ startX = x1;
+ startY = y1;
+ endX = x0;
+ endY = y0;
+ }
+ if (rectangle) {
+ for (int y = startY; y <= endY; y++) {
+ for (int x = startX; x <= endX; x++) {
+ sb.append(Character.toChars(getCharXY(x, y).getChar()));
+ }
+ sb.append("\n");
+ }
+ } else {
+ if (endY > startY) {
+ for (int x = startX; x < width; x++) {
+ sb.append(Character.toChars(getCharXY(x, startY).getChar()));
+ }
+ sb.append("\n");
+ for (int y = startY + 1; y < endY; y++) {
+ for (int x = 0; x < width; x++) {
+ sb.append(Character.toChars(getCharXY(x, y).getChar()));
+ }
+ sb.append("\n");
+ }
+ for (int x = 0; x <= endX; x++) {
+ sb.append(Character.toChars(getCharXY(x, endY).getChar()));
+ }
+ } else {
+ assert (startY == endY);
+ for (int x = startX; x <= endX; x++) {
+ sb.append(Character.toChars(getCharXY(x, startY).getChar()));
+ }
+ }
+ }
+ clipboard.copyText(sb.toString());
+ }
+