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ICEpdf PDF Viewer Reference Implementation (RI)
/*
* Copyright 2006-2016 ICEsoft Technologies Inc.
*
* Licensed 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.icepdf.ri.common.utility.annotation;
import org.icepdf.core.pobjects.Name;
import org.icepdf.core.pobjects.annotations.LineAnnotation;
import org.icepdf.ri.common.SwingController;
import org.icepdf.ri.common.views.AnnotationComponent;
import javax.swing.*;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
/**
* LineAnnotationPanel is a configuration panel for changing the properties
* of a LineAnnotationComponent and the underlying annotation component.
*
* @since 5.0
*/
@SuppressWarnings("serial")
public class LineAnnotationPanel extends AnnotationPanelAdapter implements ItemListener,
ActionListener {
// default list values.
private static final int DEFAULT_START_END_TYPE = 0;
private static final int DEFAULT_END_END_TYPE = 0;
private static final int DEFAULT_LINE_THICKNESS = 0;
private static final int DEFAULT_LINE_STYLE = 0;
private static final Color DEFAULT_BORDER_COLOR = Color.DARK_GRAY;
private static final Color DEFAULT_FILL_COLOR = Color.DARK_GRAY;
// line end types.
private static ValueLabelItem[] END_TYPE_LIST;
// link action appearance properties.
private JComboBox startEndTypeBox;
private JComboBox endEndTypeBox;
private JComboBox lineThicknessBox;
private JComboBox lineStyleBox;
private JButton colorButton;
private JButton internalColorButton;
private LineAnnotation annotation;
public LineAnnotationPanel(SwingController controller) {
super(controller);
setLayout(new GridLayout(6, 2, 5, 2));
// Setup the basics of the panel
setFocusable(true);
// Add the tabbed pane to the overall panel
createGUI();
// Start the panel disabled until an action is clicked
setEnabled(false);
revalidate();
}
/**
* Method that should be called when a new AnnotationComponent is selected by the user
* The associated object will be stored locally as currentAnnotation
* Then all of it's properties will be applied to the UI pane
* For example if the border was red, the color of the background button will
* be changed to red
*
* @param newAnnotation to set and apply to this UI
*/
public void setAnnotationComponent(AnnotationComponent newAnnotation) {
if (newAnnotation == null || newAnnotation.getAnnotation() == null) {
setEnabled(false);
return;
}
// assign the new action instance.
this.currentAnnotationComponent = newAnnotation;
// For convenience grab the Annotation object wrapped by the component
annotation = (LineAnnotation)
currentAnnotationComponent.getAnnotation();
applySelectedValue(startEndTypeBox, annotation.getStartArrow());
applySelectedValue(endEndTypeBox, annotation.getEndArrow());
applySelectedValue(lineThicknessBox, annotation.getLineThickness());
applySelectedValue(lineStyleBox, annotation.getLineStyle());
colorButton.setBackground(annotation.getColor());
internalColorButton.setBackground(annotation.getInteriorColor());
// disable appearance input if we have a invisible rectangle
safeEnable(startEndTypeBox, true);
safeEnable(endEndTypeBox, true);
safeEnable(lineThicknessBox, true);
safeEnable(lineStyleBox, true);
safeEnable(colorButton, true);
safeEnable(internalColorButton, true);
}
public void itemStateChanged(ItemEvent e) {
ValueLabelItem item = (ValueLabelItem) e.getItem();
if (e.getStateChange() == ItemEvent.SELECTED) {
if (e.getSource() == startEndTypeBox) {
annotation.setStartArrow((Name) item.getValue());
} else if (e.getSource() == endEndTypeBox) {
annotation.setEndArrow((Name) item.getValue());
} else if (e.getSource() == lineThicknessBox) {
annotation.getBorderStyle().setStrokeWidth((Float) item.getValue());
} else if (e.getSource() == lineStyleBox) {
annotation.getBorderStyle().setBorderStyle((Name) item.getValue());
}
// save the action state back to the document structure.
updateCurrentAnnotation();
currentAnnotationComponent.resetAppearanceShapes();
currentAnnotationComponent.repaint();
}
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == colorButton) {
Color chosenColor =
JColorChooser.showDialog(colorButton,
messageBundle.getString(
"viewer.utilityPane.annotation.line.colorChooserTitle"),
colorButton.getBackground());
if (chosenColor != null) {
// change the colour of the button background
colorButton.setBackground(chosenColor);
annotation.setColor(chosenColor);
// save the action state back to the document structure.
updateCurrentAnnotation();
currentAnnotationComponent.resetAppearanceShapes();
currentAnnotationComponent.repaint();
}
} else if (e.getSource() == internalColorButton) {
Color chosenColor =
JColorChooser.showDialog(internalColorButton,
messageBundle.getString(
"viewer.utilityPane.annotation.line.colorInternalChooserTitle"),
internalColorButton.getBackground());
if (chosenColor != null) {
// change the colour of the button background
internalColorButton.setBackground(chosenColor);
annotation.setInteriorColor(chosenColor);
// save the action state back to the document structure.
updateCurrentAnnotation();
currentAnnotationComponent.resetAppearanceShapes();
currentAnnotationComponent.repaint();
}
}
}
/**
* Method to create link annotation GUI.
*/
private void createGUI() {
// line end types
if (END_TYPE_LIST == null) {
END_TYPE_LIST = new ValueLabelItem[]{
new ValueLabelItem(LineAnnotation.LINE_END_NONE,
messageBundle.getString("viewer.utilityPane.annotation.line.end.none")),
new ValueLabelItem(LineAnnotation.LINE_END_OPEN_ARROW,
messageBundle.getString("viewer.utilityPane.annotation.line.end.openArrow")),
new ValueLabelItem(LineAnnotation.LINE_END_CLOSED_ARROW,
messageBundle.getString("viewer.utilityPane.annotation.line.end.closedArrow")),
new ValueLabelItem(LineAnnotation.LINE_END_DIAMOND,
messageBundle.getString("viewer.utilityPane.annotation.line.end.diamond")),
new ValueLabelItem(LineAnnotation.LINE_END_SQUARE,
messageBundle.getString("viewer.utilityPane.annotation.line.end.square")),
new ValueLabelItem(LineAnnotation.LINE_END_CIRCLE,
messageBundle.getString("viewer.utilityPane.annotation.line.end.circle"))};
}
// Create and setup an Appearance panel
setBorder(new TitledBorder(new EtchedBorder(EtchedBorder.LOWERED),
messageBundle.getString("viewer.utilityPane.annotation.line.appearance.title"),
TitledBorder.LEFT,
TitledBorder.DEFAULT_POSITION));
// Line start type
startEndTypeBox = new JComboBox(END_TYPE_LIST);
startEndTypeBox.setSelectedIndex(DEFAULT_START_END_TYPE);
startEndTypeBox.addItemListener(this);
add(new JLabel(messageBundle.getString("viewer.utilityPane.annotation.line.startStyle")));
add(startEndTypeBox);
// Line end type
endEndTypeBox = new JComboBox(END_TYPE_LIST);
endEndTypeBox.setSelectedIndex(DEFAULT_END_END_TYPE);
endEndTypeBox.addItemListener(this);
add(new JLabel(messageBundle.getString("viewer.utilityPane.annotation.line.endStyle")));
add(endEndTypeBox);
// Line thickness
lineThicknessBox = new JComboBox(LINE_THICKNESS_LIST);
lineThicknessBox.setSelectedIndex(DEFAULT_LINE_THICKNESS);
lineThicknessBox.addItemListener(this);
add(new JLabel(messageBundle.getString("viewer.utilityPane.annotation.line.lineThickness")));
add(lineThicknessBox);
// Line style
lineStyleBox = new JComboBox(LINE_STYLE_LIST);
lineStyleBox.setSelectedIndex(DEFAULT_LINE_STYLE);
lineStyleBox.addItemListener(this);
add(new JLabel(messageBundle.getString("viewer.utilityPane.annotation.line.lineStyle")));
add(lineStyleBox);
// border colour
colorButton = new JButton();
colorButton.addActionListener(this);
colorButton.setOpaque(true);
colorButton.setBackground(DEFAULT_BORDER_COLOR);
add(new JLabel(
messageBundle.getString("viewer.utilityPane.annotation.line.colorLabel")));
add(colorButton);
// line colour
internalColorButton = new JButton();
internalColorButton.addActionListener(this);
internalColorButton.setOpaque(true);
internalColorButton.setBackground(DEFAULT_FILL_COLOR);
add(new JLabel(
messageBundle.getString("viewer.utilityPane.annotation.line.colorInternalLabel")));
add(internalColorButton);
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
safeEnable(startEndTypeBox, enabled);
safeEnable(endEndTypeBox, enabled);
safeEnable(lineThicknessBox, enabled);
safeEnable(lineStyleBox, enabled);
safeEnable(colorButton, enabled);
safeEnable(internalColorButton, enabled);
}
/**
* Convenience method to ensure a component is safe to toggle the enabled state on
*
* @param comp to toggle
* @param enabled the status to use
* @return true on success
*/
protected boolean safeEnable(JComponent comp, boolean enabled) {
if (comp != null) {
comp.setEnabled(enabled);
return true;
}
return false;
}
private void applySelectedValue(JComboBox comboBox, Object value) {
comboBox.removeItemListener(this);
ValueLabelItem currentItem;
for (int i = 0; i < comboBox.getItemCount(); i++) {
currentItem = (ValueLabelItem) comboBox.getItemAt(i);
if (currentItem.getValue().equals(value)) {
comboBox.setSelectedIndex(i);
break;
}
}
comboBox.addItemListener(this);
}
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