mirror of
https://github.com/processing/processing4.git
synced 2026-04-28 15:11:51 +02:00
List for displaying available libraries added to library manager.
List of available libraries is currently a placeholder.
This commit is contained in:
pesckal
312
app/src/processing/app/LibraryListPanel.java
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312
app/src/processing/app/LibraryListPanel.java
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@@ -0,0 +1,312 @@
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package processing.app;
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import javax.swing.*;
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import javax.swing.text.*;
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import java.awt.event.*;
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import java.awt.font.*;
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import java.awt.*;
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import java.text.*;
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import java.util.*;
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import processing.app.LibraryManager.*;
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public class LibraryListPanel extends JPanel {
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/**
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* Panel that expands and gives a brief overview of a library when clicked.
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*/
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class LibraryPanel extends JPanel {
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final String unclickedCardId = "unclicked";
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final String clickedCardId = "clicked";
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final int topAndBottomBorder = 2;
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LibraryInfo libInfo;
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JPanel headerPanel;
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JLabel nameLabel;
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JPanel infoPanel;
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JPanel unclickedCard;
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JPanel clickedCard;
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JTextArea briefText;
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JButton installOrRemove;
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boolean isInfoShown;
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private LibraryPanel(LibraryInfo libInfo) {
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this.libInfo = libInfo;
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setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
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setBorder(BorderFactory.createEmptyBorder(topAndBottomBorder, 2, topAndBottomBorder, 2));
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configureHeaderPane();
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configureInfoPane();
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setShowInfo(false);
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updateLibraryListSize();
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addMouseListener(new MouseAdapter() {
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public void mouseClicked(MouseEvent e) {
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for (Component c : LibraryListPanel.this.getComponents()) {
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if (c != LibraryPanel.this && c instanceof LibraryPanel) {
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LibraryPanel lp = (LibraryPanel) c;
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lp.setShowInfo(false);
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}
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}
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setShowInfo(true);
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updateLibraryListSize();
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}
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});
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}
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/**
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* Create the widgets for the header panel which is visible when the library
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* panel is not clicked
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*/
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private void configureHeaderPane() {
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headerPanel = new JPanel();
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headerPanel.setOpaque(false);
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headerPanel.setLayout(new BoxLayout(headerPanel, BoxLayout.X_AXIS));
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nameLabel = new JLabel(libInfo.name);
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headerPanel.add(this.nameLabel);
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headerPanel.add(Box.createHorizontalGlue());
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add(headerPanel);
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}
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/**
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* Create the widgets for the info panel which is visible when the library
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* panel is clicked
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*/
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private void configureInfoPane() {
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infoPanel = new JPanel();
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infoPanel.setLayout(new BoxLayout(infoPanel, BoxLayout.Y_AXIS));
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infoPanel.setLayout(new CardLayout());
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unclickedCard = new JPanel();
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clickedCard = new JPanel();
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infoPanel.setOpaque(false);
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unclickedCard.setOpaque(false);
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clickedCard.setOpaque(false);
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briefText = new JTextArea(libInfo.briefOverview);
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installOrRemove = new JButton();
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// installOrRemove = new JButton("Install");
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// ActionListener installLibAction = new ActionListener() {
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//
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// public void actionPerformed(ActionEvent arg) {
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// try {
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// URL url = new URL(libraryUri.getText());
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// // System.out.println("Installing library: " + url);
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// File libFile = downloadLibrary(url);
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// if (libFile != null) {
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// installLibrary(libFile);
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// }
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// } catch (MalformedURLException e) {
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// System.err.println("Malformed URL");
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// }
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// libraryUri.setText("");
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// }
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// };
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// installOrRemove.addActionListener(installLibAction);
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clickedCard.setLayout(new BoxLayout(clickedCard, BoxLayout.X_AXIS));
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briefText.setHighlighter(null);
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briefText.setOpaque(false);
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briefText.setEditable(false);
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briefText.setLineWrap(true);
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briefText.setWrapStyleWord(true);
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Font font = this.briefText.getFont();
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font = font.deriveFont(font.getSize() * 0.9f);
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briefText.setFont(font);
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clickedCard.add(briefText);
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clickedCard.add(Box.createHorizontalGlue());
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clickedCard.add(installOrRemove);
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installOrRemove.setAlignmentY(Component.BOTTOM_ALIGNMENT);
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briefText.setAlignmentY(Component.BOTTOM_ALIGNMENT);
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installOrRemove.setText("Install");
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Dimension installButtonDimensions = installOrRemove.getPreferredSize();
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installButtonDimensions.width = 100;
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installOrRemove.setPreferredSize(installButtonDimensions);
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infoPanel.add(unclickedCard, unclickedCardId);
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infoPanel.add(clickedCard, clickedCardId);
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add(infoPanel);
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}
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/**
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* Turns on/off the info panel which contains a brief description of the
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* library and a button to Install/Remove a library.
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*/
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public void setShowInfo(boolean doShow) {
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isInfoShown = doShow;
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CardLayout cardLayout = (CardLayout) infoPanel.getLayout();
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if (isInfoShown) {
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setBackground(UIManager.getColor("List.selectionBackground"));
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cascadeForgroundColor(this, UIManager.getColor("List.selectionForeground"));
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cardLayout.show(infoPanel, clickedCardId);
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} else {
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setBackground(UIManager.getColor("List.background"));
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cascadeForgroundColor(this, UIManager.getColor("List.foreground"));
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cardLayout.show(infoPanel, unclickedCardId);
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}
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int width = getSize().width;
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updateSize(width > 0 ? width : 100);
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}
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/**
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* Updates the sizes of components in this panel given width as a constraint
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*/
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public void updateSize(int width) {
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Dimension textDimentions = briefText.getPreferredSize();
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textDimentions.width = width - installOrRemove.getPreferredSize().width;
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textDimentions.height = calculateHeight(briefText, textDimentions.width);
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briefText.setMaximumSize(textDimentions);
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briefText.setMinimumSize(textDimentions);
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briefText.setPreferredSize(textDimentions);
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//briefText.setSize(textDimentions);
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Dimension d;
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if (isInfoShown) {
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d = headerPanel.getPreferredSize();
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d.width = width;
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d.height += clickedCard.getPreferredSize().height + 2 * topAndBottomBorder;
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} else {
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d = headerPanel.getPreferredSize();
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d.width = width;
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d.height += 2 * topAndBottomBorder;
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}
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setMaximumSize(d);
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setMinimumSize(d);
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setPreferredSize(d);
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//setSize(d);
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revalidate();
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}
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}
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public LibraryListPanel(ArrayList<LibraryInfo> libraries) {
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super();
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setLayout(new GridBagLayout());
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int row = 0;
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for (LibraryInfo libInfo : libraries) {
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GridBagConstraints c = new GridBagConstraints();
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c.fill = GridBagConstraints.HORIZONTAL;
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c.weightx = 1;
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c.gridx = 0;
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c.gridy = row++;
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add(new LibraryPanel(libInfo), c);
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}
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GridBagConstraints verticalFill = new GridBagConstraints();
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verticalFill.fill = GridBagConstraints.VERTICAL;
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verticalFill.weighty = 1;
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verticalFill.gridx = 0;
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verticalFill.gridy = row++;
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add(Box.createVerticalGlue(), verticalFill);
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}
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/**
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* Updates the widths of all library panels in this library list.
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*/
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public void setWidth(int newWidth) {
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for (Component c : getComponents()) {
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if (c instanceof LibraryPanel) {
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((LibraryPanel) c).updateSize(newWidth);
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}
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}
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updateLibraryListSize();
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}
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/**
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* Updates the width and height of this library list based on the sizes of
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* the library panes it contains.
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*/
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private void updateLibraryListSize() {
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int height = 0;
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int width = 0;
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for (Component c : getComponents()) {
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if (c.isVisible()) {
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if (c instanceof LibraryListPanel) {
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Dimension d = c.getSize();
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if (d.width > width) {
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width = d.width;
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}
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height += d.height;
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}
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}
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}
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setPreferredSize(new Dimension(width, height));
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}
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/**
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* Sets the foreground color for a component and all of its subcompenents
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* recursively.
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*/
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private static void cascadeForgroundColor(Component component, Color color) {
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if (component instanceof Container) {
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for (Component c : ((Container) component).getComponents()) {
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cascadeForgroundColor(c, color);
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}
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}
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if (component instanceof JLabel || component instanceof JTextComponent) {
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component.setForeground(color);
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}
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}
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/**
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* Counts the numbers of lines needed to display the text in a JTextArea given
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* a width as a contained. This assumed that both word wrap and wrap-style
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* word are enabled for the JTextArea.
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*/
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private static int lineCount(JTextArea textArea, int width) {
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AttributedString text = new AttributedString(textArea.getText());
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FontRenderContext frc = textArea.getFontMetrics(textArea.getFont())
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.getFontRenderContext();
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AttributedCharacterIterator charIt = text.getIterator();
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LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(charIt, frc);
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lineMeasurer.setPosition(charIt.getBeginIndex());
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// Get lines from lineMeasurer until the entire
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// paragraph has been displayed.
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int noLines = 0;
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while (lineMeasurer.getPosition() < charIt.getEndIndex()) {
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lineMeasurer.nextLayout(width);
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noLines++;
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}
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return noLines;
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}
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/**
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* Calculates the height in pixels of the text in a JTextArea given a width
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* as a contained. This assumed that both word wrap and wrap-style word are
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* enabled for the JTextArea.
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*/
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private static int calculateHeight(JTextArea textArea, int width) {
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Font font = textArea.getFont();
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FontMetrics fontMetrics = textArea.getFontMetrics(font);
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int lineHeight = fontMetrics.getAscent() + fontMetrics.getDescent();
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return lineHeight * lineCount(textArea, width);
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}
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}
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@@ -32,6 +32,10 @@ import java.util.Iterator;
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import java.util.zip.*;
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import javax.swing.*;
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import javax.swing.event.ChangeEvent;
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import javax.swing.event.ChangeListener;
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import processing.app.LibraryListPanel.LibraryPanel;
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/**
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*
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@@ -40,12 +44,8 @@ public class LibraryManager {
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JFrame dialog;
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JLabel uriLabel;
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JTextField libraryUri;
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JButton installButton;
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LibraryListPanel libraryListPane;
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// the calling editor, so updates can be applied
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Editor editor;
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@@ -60,44 +60,29 @@ public class LibraryManager {
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Base.setIcon(dialog);
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uriLabel = new JLabel("Library URI:");
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libraryUri = new JTextField(40);
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installButton = new JButton("Install");
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ActionListener installLibAction = new ActionListener() {
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public void actionPerformed(ActionEvent arg) {
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try {
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URL url = new URL(libraryUri.getText());
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// System.out.println("Installing library: " + url);
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File libFile = downloadLibrary(url);
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if (libFile != null) {
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installLibrary(libFile);
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}
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} catch (MalformedURLException e) {
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System.err.println("Malformed URL");
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}
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libraryUri.setText("");
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}
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};
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libraryUri.addActionListener(installLibAction);
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installButton.addActionListener(installLibAction);
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Container pane = dialog.getContentPane();
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BoxLayout boxLayout = new BoxLayout(pane, BoxLayout.Y_AXIS);
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pane.setLayout(boxLayout);
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Box horizontal = Box.createHorizontalBox();
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horizontal.add(Box.createVerticalStrut(2));
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horizontal.add(uriLabel);
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uriLabel.setAlignmentX(Component.LEFT_ALIGNMENT);
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horizontal.add(Box.createVerticalStrut(5));
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horizontal.add(libraryUri);
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horizontal.add(installButton);
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pane.add(horizontal);
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pane.setLayout(new BoxLayout(pane, BoxLayout.Y_AXIS));
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pane.setBackground(Color.red);
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libraryListPane = new LibraryListPanel(fetchLibraryInfo());
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final JScrollPane scrollPane = new JScrollPane();
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scrollPane.setViewportView(libraryListPane);
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scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
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pane.add(scrollPane);
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scrollPane.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
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scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
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scrollPane.getViewport().addChangeListener(new ChangeListener() {
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public void stateChanged(ChangeEvent ce) {
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int width = scrollPane.getViewportBorderBounds().width;
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libraryListPane.setWidth(width);
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}
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});
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dialog.setMinimumSize(new Dimension(400, 400));
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dialog.pack();
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Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
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dialog.setLocation((screen.width - dialog.getWidth()) / 2,
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@@ -284,5 +269,52 @@ public class LibraryManager {
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return 0;
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}
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/**
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* Placeholder function which returns a list of information on libraries.
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*/
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public ArrayList<LibraryInfo> fetchLibraryInfo() {
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ArrayList<LibraryInfo> libInfos = new ArrayList<LibraryInfo>();
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LibraryInfo libInfo = new LibraryInfo();
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libInfo.name = "BlobDetection";
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libInfo.briefOverview = "Performs the computer vision technique of finding \"blobs\" in an image.";
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libInfo.isInstalled = true;
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libInfo.tags.add("blob");
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libInfo.tags.add("vision");
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libInfo.tags.add("image");
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libInfos.add(libInfo);
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libInfo = new LibraryInfo();
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libInfo.name = "OpenCV";
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libInfo.briefOverview = "An OpenCV implementation for processing including blob detection, face recognition and more. This library is highly recommended.";
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libInfo.isInstalled = false;
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libInfo.tags.add("face");
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libInfo.tags.add("vision");
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libInfo.tags.add("image");
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libInfos.add(libInfo);
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libInfo = new LibraryInfo();
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libInfo.name = "SQLibrary";
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libInfo.briefOverview = "A library to facilitate communication with MySQL or SQLite databases.";
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libInfo.isInstalled = false;
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libInfo.tags.add("database");
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libInfos.add(libInfo);
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return libInfos;
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}
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static class LibraryInfo {
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String name;
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String briefOverview;
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String version;
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String url;
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ArrayList<String> tags;
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boolean isInstalled;
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public LibraryInfo() {
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tags = new ArrayList<String>();
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isInstalled = false;
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}
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}
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}
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Reference in New Issue
Block a user