processing4/app/src/processing/app/tools/ThemeSelector.java at main · processing/processing4 · GitHub

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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

ThemeSelector - easy selection of alternate color systems

Part of the Processing project - https://processing.org

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software Foundation,

Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package processing.app.tools;

import processing.app.*;

import processing.app.laf.PdeComboBoxUI;

import processing.app.ui.Editor;

import processing.app.ui.Theme;

import processing.app.ui.Toolkit;

import processing.core.PApplet;

import processing.data.StringDict;

import javax.swing.*;

import javax.swing.border.EmptyBorder;

import java.awt.BasicStroke;

import java.awt.Color;

import java.awt.Component;

import java.awt.Container;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseMotionAdapter;

import java.io.*;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class ThemeSelector extends JFrame implements Tool {

static final String HOWTO_URL =

"https://github.com/processing/processing4/wiki/Themes";

static final String ORDER_FILENAME = "order.txt";

String miniSvgXml;

List<ThemeSet> sets;

String defaultTheme;

File sketchbookFile;

ThemeSet currentSet;

int currentIndex;

JComboBox<String> setSelector;

ColorfulPanel selector;

JLabel howtoLabel;

JLabel reloadTheme;

Base base;

public String getMenuTitle() {

return "Theme Selector";

}

public void init(Base base) {

this.base = base;

try {

File themeFolder = Theme.getThemeFolder();

File[] setFolders = themeFolder.listFiles(file -> {

if (file.isDirectory()) {

File orderFile = new File(file, ORDER_FILENAME);

return orderFile.exists();

}

return false;

});

if (setFolders == null) {

Messages.showWarning("Could not load themes",

"The themes directory could not be read.\n" +

"Please reinstall Processing.");

return;

}

File miniFile = new File(themeFolder, "mini.svg");

miniSvgXml = Util.loadFile(miniFile);

sets = new ArrayList<>();

for (File folder : setFolders) {

sets.add(new ThemeSet(folder));

}

currentSet = sets.get(0);

defaultTheme = getDefaultTheme();

} catch (IOException e) {

e.printStackTrace();

}

Container pane = getContentPane();

Box axis = Box.createVerticalBox();

String[] setNames = new String[sets.size()];

for (int i = 0; i < sets.size(); i++) {

setNames[i] = sets.get(i).name;

}

setSelector = new JComboBox<>(setNames);

setSelector.addItemListener(e -> {

currentSet = sets.get(setSelector.getSelectedIndex());

updateCurrentIndex();

repaint();

});

addRow(axis, setSelector);

axis.add(Box.createVerticalStrut(13));

axis.add(selector = new ColorfulPanel()); // flush with sides

axis.add(Box.createVerticalStrut(13));

addRow(axis, howtoLabel = new JLabel());

howtoLabel.addMouseListener(new MouseAdapter() {

public void mousePressed(MouseEvent e) {

Platform.openURL(HOWTO_URL);

}

public void mouseEntered(MouseEvent e) {

setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

//clickable.setForeground(Theme.getColor("laf.accent.color"));

}

// Set the text back to black when the mouse is outside

public void mouseExited(MouseEvent e) {

setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

// steal the color from a component that doesn't change

// (so that it works after updateTheme() has been called)

//clickable.setForeground(sketchbookLocationLabel.getForeground());

}

});

axis.add(Box.createVerticalStrut(6));

addRow(axis, reloadTheme = new JLabel());

reloadTheme.addMouseListener(new MouseAdapter() {

public void mousePressed(MouseEvent e) {

if (!sketchbookFile.exists()) {

// When first called, just create the theme.txt file

Theme.save();

updateTheme(); // changes the JLabel for this fella

} else {

reloadTheme();

// May be too subtle, but popping up a dialog box is too much.

// Feels like something needed because theme.txt edits may be subtle.

Editor activeEditor = base.getActiveEditor();

if (activeEditor != null) {

activeEditor.statusNotice("Finished updating theme.");

}

public void mouseEntered(MouseEvent e) {

setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

}

public void mouseExited(MouseEvent e) {

setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

}

});

axis.setBorder(new EmptyBorder(20, 20, 20, 20));

pane.add(axis);

Toolkit.registerWindowCloseKeys(getRootPane(), e -> setVisible(false));

setTitle(getMenuTitle());

setResizable(false);

updateTheme(); // important before pack()

pack();

setLocationRelativeTo(null);

}

static final int ROW_H_GAP = 7;

static final int ROW_V_GAP = 0;

static private void addRow(Container axis, Component... components) {

JPanel row = new JPanel(new FlowLayout(FlowLayout.LEFT, ROW_H_GAP, ROW_V_GAP));

row.setOpaque(false);

for (Component comp : components) {

row.add(comp);

}

axis.add(row);

}

public void run() {

// location for theme.txt in the sketchbook folder

// (doing this in run() in case the sketchbook location has changed)

sketchbookFile = Theme.getSketchbookFile();

updateTheme();

// figure out if the current theme in sketchbook is a known one

//currentIndex = getCurrentIndex();

updateCurrentIndex();

// invalidate();

// pack();

setVisible(true);

}

private void updateTheme() {

getContentPane().setBackground(Theme.getColor("theme_selector.window.color"));

if (setSelector.getUI() instanceof PdeComboBoxUI) {

((PdeComboBoxUI) setSelector.getUI()).updateTheme();

} else {

setSelector.setUI(new PdeComboBoxUI("theme_selector.combo_box"));

}

// String textColor = Theme.get("theme_selector.text.color");

// String linkColor = Theme.get("theme_selector.link.color");

String labelStyle =

"body { " +

// " margin: 0; " +

// " padding: 0;" +

// " font-family: " + detailFont.getName() + ", sans-serif;" +

// " font-size: " + detailFont.getSize() + "px;" +

// " font-size: 18px; " +

" color: " + Theme.get("theme_selector.text.color") + ";" +

"} " +

"a { " +

" color: " + Theme.get("theme_selector.link.color") + ";" +

" text-decoration: none;" +

"}";

String prefix = "<html><head><style type='text/css'>" + labelStyle + "</style></head><body>";

// System.out.println(prefix);

// howtoLabel.setText("<html><a href=\"\" color=\"" + linkColor +

// "\">Read</a> <font color=\"" + textColor + "\">about how to create your own themes.");

// howtoLabel.setText(prefix + "→ <a>Read</a> about how to create your own themes");

// howtoLabel.setText("→ <a href=\"\">Read</a> about how to create your own themes", labelStyle);

howtoLabel.setText(prefix + "→ <a href=\"\">Read</a> about how to create your own themes");

if (Theme.getSketchbookFile().exists()) {

// reloadTheme.setText("<html>→ <a href=\"\" color=\"" + linkColor +

// "\">Reload</a> <font color=\"" + textColor + "\">theme.txt to update the current theme.");

// reloadTheme.setText(prefix + "→ <a>Reload</a> theme.txt to update the current theme");

// reloadTheme.setText("→ <a href=\"\">Reload</a> theme.txt to update the current theme", labelStyle);

reloadTheme.setText(prefix + "→ <a href=\"\">Reload</a> theme.txt to update the current theme");

} else {

// reloadTheme.setText("<html><a href=\"\" color=\"" + linkColor +

// "\">Save</a> <font color=\"" + textColor + "\">theme.txt to sketchbook for editing.");

// reloadTheme.setText(prefix + "→ <a>Save</a> theme.txt to sketchbook for editing.");

reloadTheme.setText(prefix + "→ <a href=\"\">Save</a> theme.txt to sketchbook for editing");

}

//((HTMLDocument) howtoLabel.getDocument()).getStyleSheet().addRule(detailStyle);

}

private String getCurrentTheme() {

if (sketchbookFile.exists()) {

return Util.loadFile(sketchbookFile);

}

return defaultTheme;

}

private String getDefaultTheme() {

// should be entry 0 of set 0, but let's not make that assumption

try {

return Util.loadFile(Base.getLibFile("theme.txt"));

} catch (IOException e) {

e.printStackTrace();

}

// do this as a fallback

return sets.get(0).themes[0];

}

/**

* @return true if sketchbook/theme.txt does not match a built-in theme.

private boolean userModifiedTheme() {

if (!sketchbookFile.exists()) {

return false;

}

String currentTheme = getCurrentTheme();

for (ThemeSet set : sets) {

if (set.getIndex(currentTheme) != -1) {

return false; // this is a built-in theme

}

return true;

}

private void setCurrentIndex(int index) {

currentIndex = index;

// If there is a theme.txt file in the sketchbook folder,

// archive it and move out of the way.

if (userModifiedTheme()) {

boolean success = Theme.archiveCurrent();

if (!success) {

Messages.showWarning("Could not back up theme",

"Could not save a backup of theme.txt in your sketchbook folder.\n" +

"Rename it manually and try setting the theme again.");

return;

}

// required to update the color of the dropdown menu

setSelector.repaint();

// No longer saving a new theme.txt when making a selection, just setting a

// preference so that subsequent Processing updates load new theme changes.

//Util.saveFile(currentSet.get(index), sketchbookFile);

Preferences.set("theme", currentSet.getPath(index));

// On some machines, the theme wasn't getting saved; try an explicit save

// https://github.com/processing/processing4/issues/565

Preferences.save();

reloadTheme();

}

/**

* Called when user clicks the 'reload' button, or when the theme

* is changed by clicking on a built-in selection.

private void reloadTheme() {

Theme.reload();

base.updateTheme();

updateTheme();

}

private void updateCurrentIndex() {

String currentTheme = getCurrentTheme();

currentIndex = currentSet.getIndex(currentTheme);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

class ThemeSet {

final String name;

private int count;

private String[] paths;

private String[] themes;

private Image[] images;

private Map<String, Integer> indices;

ThemeSet(File dir) {

name = dir.getName();

File orderFile = new File(dir, ORDER_FILENAME);

String[] lines = PApplet.loadStrings(orderFile);

if (lines != null) {

count = Math.min(16, lines.length);

if (count < lines.length) {

System.err.println("Only using the first 16 themes inside " + orderFile);

}

paths = new String[count];

themes = new String[count];

images = new Image[count];

indices = new HashMap<>(count);

// don't load more than 16 entries

for (int i = 0; i < count; i++) {

String filename = lines[i] + ".txt";

File file = new File(dir, filename);

String theme = Util.loadFile(file);

indices.put(theme, i);

paths[i] = name + "/" + filename;

themes[i] = theme;

images[i] = renderImage(file.getName(), theme);

}

/**

* Render the Mini SVG using the theme colors.

* @param filename only used for debug messages

* @param theme all the lines of the theme file, joined

* @return mini image of the PDE with theme colors applied

private Image renderImage(String filename, String theme) {

// parse the txt file to get entries for swapping

StringDict entries =

Util.readSettings(filename, PApplet.split(theme, '\n'), true);

//entries.print();

StringDict replacements = new StringDict(new String[][] {

{ "#000000", entries.get("console.color") },

{ "#111111", entries.get("editor.gutter.highlight.color") },

{ "#222222", entries.get("footer.gradient.top") },

{ "#444444", entries.get("mode.background.color") },

{ "#555555", entries.get("toolbar.button.enabled.glyph") },

{ "#666666", entries.get("editor.gradient.top") },

{ "#777777", entries.get("editor.gradient.bottom") },

{ "#888888", entries.get("toolbar.button.selected.field") },

{ "#CCCCCC", entries.get("toolbar.button.enabled.field") },

{ "#DDDDDD", entries.get("editor.line.highlight.color") },

{ "#EEEEEE", entries.get("toolbar.button.selected.glyph") },

{ "#FFFFFF", entries.get("editor.bgcolor") }

});

//replacements.print();

//System.out.println();

return Toolkit.svgToImageMult(miniSvgXml, ColorfulPanel.DIM, ColorfulPanel.DIM, replacements);

}

String getPath(int index) {

return paths[index];

}

// String getTheme(int index) {

// return themes[index];

// }

/**

* Return the index for a given theme in this set,

* or -1 if not part of this set.

int getIndex(String theme) {

return indices.getOrDefault(theme, -1);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

class ColorfulPanel extends JPanel {

static final int OUTSET = 5;

static final int OUTLINE = 3;

static final int DIM = 80;

static final int BETWEEN = 25;

static final int EACH = DIM + BETWEEN;

static final int MARGIN = OUTSET + (OUTLINE + 1) / 2;

static final int SIZE = MARGIN*2 + DIM*4 + BETWEEN*3;

ColorfulPanel() {

addMouseListener(new MouseAdapter() {

@Override

public void mousePressed(MouseEvent e) {

handleMouse(e);

}

});

addMouseMotionListener(new MouseMotionAdapter() {

@Override

public void mouseDragged(MouseEvent e) {

handleMouse(e);

}

});

setOpaque(false);

}

private void handleMouse(MouseEvent e) {

int col = constrain((e.getX() - MARGIN) / EACH);

int colEx = constrain((e.getX() - MARGIN) % EACH);

int row = constrain((e.getY() - MARGIN) / EACH);

int rowEx = constrain((e.getY() - MARGIN) % EACH);

if (colEx < DIM && rowEx < DIM) {

int index = row * 4 + col;

if (index < currentSet.count && index != currentIndex) {

setCurrentIndex(index);

repaint();

}

private int constrain(int value) {

return Math.max(0, Math.min(value, 3));

}

@Override

public void paintComponent(Graphics g) {

for (int i = 0; i < currentSet.count; i++) {

int col = i % 4;

int row = i / 4;

int x = MARGIN + col*EACH;

int y = MARGIN + row*EACH;

g.drawImage(currentSet.images[i], x, y, DIM, DIM, null);

}

Graphics2D g2 = (Graphics2D) g;

g2.setStroke(new BasicStroke(OUTLINE));

g2.setColor(Color.GRAY);

if (currentIndex != -1) {

int col = currentIndex % 4;

int row = currentIndex / 4;

g2.drawRect(MARGIN + EACH * col - OUTSET,

MARGIN + EACH * row - OUTSET,

DIM + OUTSET * 2,

DIM + OUTSET * 2);

}

@Override

public Dimension getPreferredSize() {

return new Dimension(SIZE, SIZE);

}

public Dimension getMinimumSize() {

return getPreferredSize();

}

@Override

public Dimension getMaximumSize() {

return getPreferredSize();

}

processing4/app/src/processing/app/tools/ThemeSelector.java at main · processing/processing4 · GitHub

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