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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ==================================================================== */
-
- package org.apache.poi.sl.draw;
-
- import java.awt.Color;
- import java.awt.Graphics2D;
- import java.awt.font.TextAttribute;
- import java.awt.font.TextLayout;
- import java.text.AttributedCharacterIterator;
- import java.text.AttributedString;
- import java.text.CharacterIterator;
-
- public class DrawTextFragment implements Drawable {
- final TextLayout layout;
- final AttributedString str;
- double x, y;
-
- public DrawTextFragment(TextLayout layout, AttributedString str) {
- this.layout = layout;
- this.str = str;
- }
-
- public void setPosition(double x, double y) {
- // TODO: replace it, by applyTransform????
- this.x = x;
- this.y = y;
- }
-
- public void draw(Graphics2D graphics){
- if(str == null) {
- return;
- }
-
- double yBaseline = y + layout.getAscent();
-
- Integer textMode = (Integer)graphics.getRenderingHint(Drawable.TEXT_RENDERING_MODE);
- if(textMode != null && textMode == Drawable.TEXT_AS_SHAPES){
- layout.draw(graphics, (float)x, (float)yBaseline);
- } else {
- try {
- graphics.drawString(str.getIterator(), (float) x, (float) yBaseline);
- } catch (ClassCastException e) {
- // workaround: batik issue, which expects only Color as forground color
- replaceForgroundPaintWithBlack(str);
- graphics.drawString(str.getIterator(), (float) x, (float) yBaseline);
- }
- }
- }
-
- private void replaceForgroundPaintWithBlack(AttributedString as) {
- AttributedCharacterIterator iter = as.getIterator(new TextAttribute[]{TextAttribute.FOREGROUND});
- for (char ch = iter.first();
- ch != CharacterIterator.DONE;
- ch = iter.next()) {
- as.addAttribute(TextAttribute.FOREGROUND, Color.BLACK, iter.getBeginIndex(), iter.getEndIndex());
- }
- }
-
- public void applyTransform(Graphics2D graphics) {
- }
-
- public void drawContent(Graphics2D graphics) {
- }
-
- public TextLayout getLayout() {
- return layout;
- }
-
- public AttributedString getAttributedString() {
- return str;
- }
-
- /**
- * @return full height of this text run which is sum of ascent, descent and leading
- */
- public float getHeight(){
- double h = layout.getAscent() + layout.getDescent();
- return (float)h;
- }
-
- /**
- * @return the leading height before/after a text line
- */
- public float getLeading() {
- // fix invalid leadings (leading == 0)
- double l = layout.getLeading();
-
- if (l == 0) {
- // we use a 115% value instead of the 120% proposed one, as this seems to be closer to LO/OO
- l = (layout.getAscent()+layout.getDescent())*0.15;
- }
- return (float)l;
- }
-
- /**
- *
- * @return width if this text run
- */
- public float getWidth(){
- return layout.getAdvance();
- }
-
- /**
- *
- * @return the string to be painted
- */
- public String getString(){
- if (str == null) return "";
-
- AttributedCharacterIterator it = str.getIterator();
- StringBuilder buf = new StringBuilder();
- for (char c = it.first(); c != CharacterIterator.DONE; c = it.next()) {
- buf.append(c);
- }
- return buf.toString();
- }
-
- @Override
- public String toString(){
- return "[" + getClass().getSimpleName() + "] " + getString();
- }
-
- }
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