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ICEpdf PDF Viewer Reference Implementation (RI)
/*
* Copyright 2006-2017 ICEsoft Technologies Canada Corp.
*
* 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.FreeTextAnnotation;
import org.icepdf.ri.common.SwingController;
import org.icepdf.ri.common.views.AnnotationComponent;
import org.icepdf.ri.common.views.annotations.FreeTextAnnotationComponent;
import javax.swing.*;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
/**
* FreeTextAnnotationPanel is a configuration panel for changing the properties
* of a FreeTextAnnotationComponent and the underlying annotation component.
*
* @since 5.0
*/
@SuppressWarnings("serial")
public class FreeTextAnnotationPanel extends AnnotationPanelAdapter implements ItemListener,
ActionListener, ChangeListener {
// default list values.
private static final int DEFAULT_FONT_SIZE = 5;
private static final int DEFAULT_FONT_FAMILY = 0;
private static final Color DEFAULT_FONT_COLOR = Color.DARK_GRAY;
public static final int DEFAULT_STROKE_THICKNESS_STYLE = 0;
public static final int DEFAULT_STROKE_STYLE = 0;
public static final int DEFAULT_FILL_STYLE = 0;
private static final Color DEFAULT_BORDER_COLOR = Color.LIGHT_GRAY;
private static final Color DEFAULT_STROKE_COLOR = new Color(1, 1, 1);
// font styles.
private static ValueLabelItem[] FONT_NAMES_LIST;
// Font size.
private static ValueLabelItem[] FONT_SIZES_LIST;
// action instance that is being edited
private FreeTextAnnotation freeTextAnnotation;
// font configuration
private JComboBox fontNameBox;
private JComboBox fontSizeBox;
private JButton fontColorButton;
// fill configuration
private JComboBox fillTypeBox;
private JButton fillColorButton;
// border configuration
private JComboBox strokeTypeBox;
private JComboBox strokeThicknessBox;
private JComboBox strokeStyleBox;
private JButton strokeColorButton;
// annotation transparency/opacity
private JSlider transparencySlider;
public FreeTextAnnotationPanel(SwingController controller) {
super(controller);
setLayout(new GridBagLayout());
// 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
FreeTextAnnotationComponent freeTextAnnotationComponent = (FreeTextAnnotationComponent)
currentAnnotationComponent;
freeTextAnnotation = (FreeTextAnnotation) freeTextAnnotationComponent.getAnnotation();
// font comps
applySelectedValue(fontNameBox, freeTextAnnotation.getFontName());
applySelectedValue(fontSizeBox, freeTextAnnotation.getFontSize());
setButtonBackgroundColor(fontColorButton, freeTextAnnotation.getFontColor());
// border comps.
applySelectedValue(strokeTypeBox, freeTextAnnotation.isStrokeType());
applySelectedValue(strokeStyleBox, freeTextAnnotation.getBorderStyle().getBorderStyle());
applySelectedValue(strokeThicknessBox, freeTextAnnotation.getBorderStyle().getStrokeWidth());
setButtonBackgroundColor(strokeColorButton, freeTextAnnotation.getColor());
transparencySlider.setValue(Math.round(freeTextAnnotation.getOpacity() * 255));
// fill comps.
applySelectedValue(fillTypeBox, freeTextAnnotation.isFillType());
setButtonBackgroundColor(fillColorButton, freeTextAnnotation.getFillColor());
safeEnable(fontNameBox, true);
safeEnable(fontSizeBox, true);
safeEnable(fontColorButton, true);
safeEnable(strokeTypeBox, true);
safeEnable(strokeThicknessBox, true);
safeEnable(strokeStyleBox, true);
safeEnable(strokeColorButton, true);
safeEnable(fillTypeBox, true);
safeEnable(fillColorButton, true);
safeEnable(transparencySlider, true);
// set visibility based on fill and stroke type.
disableInvisibleFields();
}
private void disableInvisibleFields() {
boolean fillType = freeTextAnnotation.isFillType();
boolean strokeType = freeTextAnnotation.isStrokeType();
safeEnable(fillColorButton, fillType);
safeEnable(strokeThicknessBox, strokeType);
safeEnable(strokeStyleBox, strokeType);
safeEnable(strokeColorButton, strokeType);
}
public void itemStateChanged(ItemEvent e) {
ValueLabelItem item = (ValueLabelItem) e.getItem();
if (e.getStateChange() == ItemEvent.SELECTED) {
if (e.getSource() == fontNameBox) {
freeTextAnnotation.setFontName((String) item.getValue());
} else if (e.getSource() == fontSizeBox) {
freeTextAnnotation.setFontSize((Integer) item.getValue());
} else if (e.getSource() == strokeTypeBox) {
Boolean visible = (Boolean) item.getValue();
freeTextAnnotation.setStrokeType(visible);
if (visible) {
// set the line thickness
freeTextAnnotation.getBorderStyle().setStrokeWidth(
(Float) ((ValueLabelItem) strokeThicknessBox.getSelectedItem()).getValue());
// set teh default stroke.
freeTextAnnotation.getBorderStyle().setBorderStyle(
(Name) ((ValueLabelItem) strokeStyleBox.getSelectedItem()).getValue());
} else {
freeTextAnnotation.getBorderStyle().setStrokeWidth(0);
}
disableInvisibleFields();
} else if (e.getSource() == strokeStyleBox) {
freeTextAnnotation.getBorderStyle().setBorderStyle((Name) item.getValue());
} else if (e.getSource() == strokeThicknessBox) {
freeTextAnnotation.getBorderStyle().setStrokeWidth((Float) item.getValue());
} else if (e.getSource() == fillTypeBox) {
freeTextAnnotation.setFillType((Boolean) item.getValue());
if (freeTextAnnotation.isFillType()) {
freeTextAnnotation.setFillColor(fillColorButton.getBackground());
}
disableInvisibleFields();
}
// save the action state back to the document structure.
updateCurrentAnnotation();
currentAnnotationComponent.resetAppearanceShapes();
currentAnnotationComponent.repaint();
}
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == strokeColorButton) {
Color chosenColor =
JColorChooser.showDialog(strokeColorButton,
messageBundle.getString(
"viewer.utilityPane.annotation.freeText.border.color.ChooserTitle"),
strokeColorButton.getBackground());
if (chosenColor != null) {
// change the colour of the button background
strokeColorButton.setBackground(chosenColor);
freeTextAnnotation.setColor(chosenColor);
}
} else if (e.getSource() == fillColorButton) {
Color chosenColor =
JColorChooser.showDialog(fillColorButton,
messageBundle.getString(
"viewer.utilityPane.annotation.freeText.fill.color.ChooserTitle"),
fillColorButton.getBackground());
if (chosenColor != null) {
// change the colour of the button background
fillColorButton.setBackground(chosenColor);
freeTextAnnotation.setFillColor(chosenColor);
}
} else if (e.getSource() == fontColorButton) {
Color chosenColor =
JColorChooser.showDialog(fillColorButton,
messageBundle.getString(
"viewer.utilityPane.annotation.freeText.font.color.ChooserTitle"),
fontColorButton.getBackground());
if (chosenColor != null) {
// change the colour of the button background
fontColorButton.setBackground(chosenColor);
freeTextAnnotation.setFontColor(chosenColor);
}
}
// save the action state back to the document structure.
updateCurrentAnnotation();
currentAnnotationComponent.resetAppearanceShapes();
currentAnnotationComponent.repaint();
}
public void stateChanged(ChangeEvent e) {
alphaSliderChange(e, freeTextAnnotation);
}
/**
* Method to create link annotation GUI.
*/
private void createGUI() {
// font styles - core java font names and respective labels. All Java JRE should have these fonts, these
// fonts also have huge number of glyphs support many different languages.
if (FONT_NAMES_LIST == null) {
FONT_NAMES_LIST = new ValueLabelItem[]{
new ValueLabelItem("Helvetica",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.helvetica")),
new ValueLabelItem("Helvetica-Oblique",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.helveticaOblique")),
new ValueLabelItem("Helvetica-Bold",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.helveticaBold")),
new ValueLabelItem("Helvetica-BoldOblique",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.HelveticaBoldOblique")),
new ValueLabelItem("Times-Italic",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.timesItalic")),
new ValueLabelItem("Times-Bold",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.timesBold")),
new ValueLabelItem("Times-BoldItalic",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.timesBoldItalic")),
new ValueLabelItem("Times-Roman",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.timesRoman")),
new ValueLabelItem("Courier",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.courier")),
new ValueLabelItem("Courier-Oblique",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.courierOblique")),
new ValueLabelItem("Courier-BoldOblique",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.courierBoldOblique")),
new ValueLabelItem("Courier-Bold",
messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name.courierBold"))};
}
// Font size.
if (FONT_SIZES_LIST == null) {
FONT_SIZES_LIST = new ValueLabelItem[]{
new ValueLabelItem(6, messageBundle.getString("viewer.common.number.six")),
new ValueLabelItem(8, messageBundle.getString("viewer.common.number.eight")),
new ValueLabelItem(9, messageBundle.getString("viewer.common.number.nine")),
new ValueLabelItem(10, messageBundle.getString("viewer.common.number.ten")),
new ValueLabelItem(12, messageBundle.getString("viewer.common.number.twelve")),
new ValueLabelItem(14, messageBundle.getString("viewer.common.number.fourteen")),
new ValueLabelItem(16, messageBundle.getString("viewer.common.number.sixteen")),
new ValueLabelItem(18, messageBundle.getString("viewer.common.number.eighteen")),
new ValueLabelItem(20, messageBundle.getString("viewer.common.number.twenty")),
new ValueLabelItem(24, messageBundle.getString("viewer.common.number.twentyFour")),
new ValueLabelItem(36, messageBundle.getString("viewer.common.number.thirtySix")),
new ValueLabelItem(48, messageBundle.getString("viewer.common.number.fortyEight"))};
}
// Create and setup an Appearance panel
setBorder(new TitledBorder(new EtchedBorder(EtchedBorder.LOWERED),
messageBundle.getString("viewer.utilityPane.annotation.freeText.appearance.title"),
TitledBorder.LEFT,
TitledBorder.DEFAULT_POSITION));
constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.HORIZONTAL;
constraints.weightx = 1.0;
constraints.anchor = GridBagConstraints.NORTH;
constraints.anchor = GridBagConstraints.WEST;
constraints.insets = new Insets(1, 2, 1, 2);
// Font name
fontNameBox = new JComboBox(FONT_NAMES_LIST);
fontNameBox.setSelectedIndex(DEFAULT_FONT_FAMILY);
fontNameBox.addItemListener(this);
JLabel label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.font.name"));
addGB(this, label, 0, 0, 1, 1);
addGB(this, fontNameBox, 1, 0, 1, 1);
// border style
fontSizeBox = new JComboBox(FONT_SIZES_LIST);
fontSizeBox.setSelectedIndex(DEFAULT_FONT_SIZE);
fontSizeBox.addItemListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.font.size"));
addGB(this, label, 0, 1, 1, 1);
addGB(this, fontSizeBox, 1, 1, 1, 1);
// border colour
fontColorButton = new JButton(" ");
fontColorButton.addActionListener(this);
fontColorButton.setOpaque(true);
fontColorButton.setBackground(DEFAULT_FONT_COLOR);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.font.color"));
addGB(this, label, 0, 2, 1, 1);
addGB(this, fontColorButton, 1, 2, 1, 1);
// stroke type
strokeTypeBox = new JComboBox(VISIBLE_TYPE_LIST);
strokeTypeBox.setSelectedIndex(DEFAULT_STROKE_STYLE);
strokeTypeBox.addItemListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.border.type"));
addGB(this, label, 0, 3, 1, 1);
addGB(this, strokeTypeBox, 1, 3, 1, 1);
// border thickness
strokeThicknessBox = new JComboBox(LINE_THICKNESS_LIST);
strokeThicknessBox.setSelectedIndex(DEFAULT_STROKE_THICKNESS_STYLE);
strokeThicknessBox.addItemListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.border.thickness"));
addGB(this, label, 0, 4, 1, 1);
addGB(this, strokeThicknessBox, 1, 4, 1, 1);
// border style
strokeStyleBox = new JComboBox(LINE_STYLE_LIST);
strokeStyleBox.setSelectedIndex(DEFAULT_STROKE_STYLE);
strokeStyleBox.addItemListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.border.style"));
addGB(this, label, 0, 5, 1, 1);
addGB(this, strokeStyleBox, 1, 5, 1, 1);
// border colour
strokeColorButton = new JButton(" ");
strokeColorButton.addActionListener(this);
strokeColorButton.setOpaque(true);
strokeColorButton.setBackground(DEFAULT_BORDER_COLOR);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.border.color"));
addGB(this, label, 0, 6, 1, 1);
addGB(this, strokeColorButton, 1, 6, 1, 1);
// fill type
fillTypeBox = new JComboBox(VISIBLE_TYPE_LIST);
fillTypeBox.setSelectedIndex(DEFAULT_FILL_STYLE);
fillTypeBox.addItemListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.fill.type"));
addGB(this, label, 0, 7, 1, 1);
addGB(this, fillTypeBox, 1, 7, 1, 1);
// fill colour
fillColorButton = new JButton(" ");
fillColorButton.addActionListener(this);
fillColorButton.setOpaque(true);
fillColorButton.setBackground(DEFAULT_STROKE_COLOR);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.fill.color"));
addGB(this, label, 0, 8, 1, 1);
addGB(this, fillColorButton, 1, 8, 1, 1);
// transparency slider
transparencySlider = buildAlphaSlider();
transparencySlider.setMajorTickSpacing(255);
transparencySlider.setPaintLabels(true);
transparencySlider.addChangeListener(this);
label = new JLabel(messageBundle.getString("viewer.utilityPane.annotation.freeText.transparencyLabel"));
addGB(this, label, 0, 9, 1, 1);
addGB(this, transparencySlider, 1, 9, 1, 1);
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
safeEnable(fontNameBox, enabled);
safeEnable(fontSizeBox, enabled);
safeEnable(fontColorButton, enabled);
safeEnable(strokeTypeBox, enabled);
safeEnable(strokeThicknessBox, enabled);
safeEnable(strokeStyleBox, enabled);
safeEnable(strokeColorButton, enabled);
safeEnable(fillTypeBox, enabled);
safeEnable(fillColorButton, enabled);
safeEnable(transparencySlider, 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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