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Open Source Chemistry Library
/*
* Copyright (c) 1997 - 2016
* Actelion Pharmaceuticals Ltd.
* Gewerbestrasse 16
* CH-4123 Allschwil, Switzerland
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package com.actelion.research.chem;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
public class TextDrawingObject extends AbstractDrawingObject {
public static final String TYPE_STRING = "text";
public static final float DEFAULT_SIZE = 9.0f;
public static final int DEFAULT_STYLE = Font.PLAIN;
private static final float LINE_SPACING = 1.4f;
float mSize,mZoomReferenceSize;
String mText;
int mStyle;
boolean mHilite;
public TextDrawingObject() {
this("",new Point2D.Float(),DEFAULT_SIZE, DEFAULT_STYLE);
}
public TextDrawingObject(String text, float x, float y)
{
this(text,x,y,DEFAULT_SIZE, DEFAULT_STYLE);
}
public TextDrawingObject(String text, float x, float y, float size, int style)
{
this(text,new Point2D.Float(x,y),size,style);
}
public TextDrawingObject(String descriptorDetail) {
this();
int index1 = 0;
while (index1 != -1) {
// text="this is a test"
// 012345678901234567890
int index2 = descriptorDetail.indexOf("=\"", index1);
if (index2 == -1)
break; // should never happen
String key = descriptorDetail.substring(index1+1, index2);
index1 = descriptorDetail.indexOf("\"", index2+2);
String value = (index1 == -1) ? descriptorDetail.substring(index2+1)
: descriptorDetail.substring(index2+1, index1);
if (key.equals("text"))
setText(value);
// mText = decodeText(value);
else if (key.equals("x"))
setX(value);
// try { mPoint[0].x = Float.parseDouble(value); } catch (NumberFormatException nfe) {}
else if (key.equals("y"))
setY(value);
// try { mPoint[0].y = Float.parseDouble(value); } catch (NumberFormatException nfe) {}
else if (key.equals("size"))
setSize(value);
// try { mSize = Integer.parseInt(value); } catch (NumberFormatException nfe) {}
else if (key.equals("style"))
setStyle(value);
// try { mStyle = Integer.parseInt(value); } catch (NumberFormatException nfe) {}
}
}
protected void setText(String value)
{
mText = decodeText(value);
}
protected void setX(String value)
{
try { mPoint[0].x = Float.parseFloat(value); } catch (NumberFormatException nfe) {}
}
protected void setY(String value)
{
try { mPoint[0].y = Float.parseFloat(value); } catch (NumberFormatException nfe) {}
}
protected void setSize(String value)
{
try { mSize = Float.parseFloat(value); } catch (NumberFormatException nfe) {}
}
protected void setStyle(String value)
{
try { mStyle = Integer.parseInt(value); } catch (NumberFormatException nfe) {}
}
private TextDrawingObject(String text, Point2D.Float pt, float size, int style) {
mText = text;
mSize = size;
mStyle = style;
mPoint = new Point2D.Float[1];
mPoint[0] = pt;
}
public String getTypeString() {
return TYPE_STRING;
}
public String getDescriptorDetail() {
StringBuilder detail = new StringBuilder();
detail.append(" text=\""+encodeText(mText) + "\"");
detail.append(" x=\""+mPoint[0].x + "\"");
detail.append(" y=\""+mPoint[0].y + "\"");
if (mSize != DEFAULT_SIZE)
detail.append(String.format(" size=\"%.4f\"", new Float(mSize)));
if (mStyle != DEFAULT_STYLE)
detail.append(" style=\""+mStyle+ "\"");
return detail.toString();
}
public AbstractDrawingObject clone() {
TextDrawingObject duplicate = new TextDrawingObject();
duplicate.setValues(mText, mSize, mStyle);
duplicate.setCoordinates(mPoint[0].x, mPoint[0].y);
duplicate.mIsSelected = this.mIsSelected;
return duplicate;
}
public void setCoordinates(float x, float y) {
mPoint[0].x = x;
mPoint[0].y = y;
}
public void scale(float f) {
super.scale(f);
mSize *= f;
}
public void zoomAndRotateInit(float x, float y) {
super.zoomAndRotateInit(x, y);
mZoomReferenceSize = mSize;
}
public void zoomAndRotate(float zoom,float angle) {
super.zoomAndRotate(zoom, angle);
mSize = mZoomReferenceSize * zoom;
}
public void draw(Graphics g, DepictorTransformation t) {
float size = (t == null) ? mSize : t.getScaling()*mSize;
g.setFont(new Font("Helvetica", mStyle, (int)size));
g.setColor(mIsSelected ? Color.red : Color.black);
ArrayList textList = getTextLineList();
Rectangle2D.Float bounds = calculateBoundingRect(/* g.getFontMetrics() */ g.getFont(), textList);
if (t != null)
t.applyTo(bounds);
for (int i=0; i textList) {
FontRenderContext frc = new FontRenderContext(font.getTransform(), true, true);
float maxWidth = 0;
for (String text:textList) {
if (text.length() != 0) {
TextLayout textLayout = new TextLayout(text, font, frc);
float width = (float)textLayout.getBounds().getWidth();
// float width = fm.stringWidth(text);
if (maxWidth < width)
maxWidth = width;
}
}
float height = mSize * LINE_SPACING * (textList.size()-1) + mSize;
return new Rectangle2D.Float(mPoint[0].x, mPoint[0].y-mSize/2, maxWidth, height);
}
public Rectangle2D.Float getBoundingRect() {
// FontMetrics fm = Toolkit.getDefaultToolkit().getFontMetrics(new Font("Helvetica", mStyle, (int)mSize));
ArrayList textList = getTextLineList();
return calculateBoundingRect(/* fm */new Font("Helvetica", mStyle, (int)mSize), textList);
}
private ArrayList getTextLineList() {
ArrayList textList = new ArrayList();
int lineBreak = mText.indexOf('\n');
if (lineBreak == -1) {
textList.add(mText);
}
else {
int textStart = 0;
while (lineBreak != -1) {
textList.add(mText.substring(textStart, lineBreak));
textStart = lineBreak+1;
lineBreak = mText.indexOf('\n', textStart);
}
textList.add(mText.substring(textStart));
}
return textList;
}
public void hilite(Graphics g) {
Rectangle2D.Float bounds = getBoundingRect();
g.setColor(SELECTION_COLOR);
g.fillRect((int)bounds.x, (int)bounds.y,
(int)bounds.width, (int)bounds.height);
}
public boolean checkHiliting(float x, float y) {
Rectangle2D.Float bounds = getBoundingRect();
mHilite = bounds.contains(x, y);
return mHilite;
}
public boolean contains(float x, float y) {
Rectangle2D.Float bounds = getBoundingRect();
return bounds.contains(x, y);
}
public void clearHiliting() {
mHilite = false;
}
public void setValues(String text, float size, int style) {
mText = text;
mSize = size;
mStyle = style;
}
public String getText() {
return mText;
}
public float getSize() {
return mSize;
}
public int getStyle() {
return mStyle;
}
private String encodeText(String source) {
StringBuffer text = new StringBuffer();
for (int i=0; i © 2015 - 2025 Weber Informatics LLC | Privacy Policy