processing/app/src/processing/app/ui/ColorChooser.java at master · unexCoder/processing · GitHub

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

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

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

it under the terms of the GNU General Public License version 2

as published by the Free Software Foundation.

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.ui;

import processing.app.Language;

import processing.app.Platform;

import processing.core.*;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Container;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.border.*;

import javax.swing.event.*;

import javax.swing.text.*;

/**

* Generic color selector frame, pulled from the Tool object. API not really

* worked out here (what should the constructor be? how flexible?) So use with

* caution and be ready for it to break in future releases.

public class ColorChooser { //extends JFrame implements DocumentListener {

int hue, saturation, brightness; // range 360, 100, 100

int red, green, blue; // range 256, 256, 256

ColorRange range;

ColorSlider slider;

JTextField hueField, saturationField, brightnessField;

JTextField redField, greenField, blueField;

JTextField hexField;

JPanel colorPanel;

DocumentListener colorListener;

JDialog window;

// public String getMenuTitle() {

// return "Color Selector";

// }

public ColorChooser(Frame owner, boolean modal, Color initialColor,

String buttonName, ActionListener buttonListener) {

//super("Color Selector");

window = new JDialog(owner, Language.text("color_chooser"), modal);

window.getContentPane().setLayout(new BorderLayout());

Box box = Box.createHorizontalBox();

box.setBorder(new EmptyBorder(12, 12, 12, 12));

range = new ColorRange();

Box rangeBox = new Box(BoxLayout.Y_AXIS);

rangeBox.setAlignmentY(0);

rangeBox.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

rangeBox.add(range);

box.add(rangeBox);

box.add(Box.createHorizontalStrut(10));

slider = new ColorSlider();

Box sliderBox = new Box(BoxLayout.Y_AXIS);

sliderBox.setAlignmentY(0);

sliderBox.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

sliderBox.add(slider);

box.add(sliderBox);

box.add(Box.createHorizontalStrut(10));

box.add(createColorFields(buttonName, buttonListener));

// System.out.println("1: " + hexField.getInsets());

box.add(Box.createHorizontalStrut(10));

// System.out.println("2: " + hexField.getInsets());

window.getContentPane().add(box, BorderLayout.CENTER);

// System.out.println(hexField);

// System.out.println("3: " + hexField.getInsets());

// colorPanel.setInsets(hexField.getInsets());

window.pack();

window.setResizable(false);

// Dimension size = getSize();

// Dimension screen = Toolkit.getScreenSize();

// setLocation((screen.width - size.width) / 2,

// (screen.height - size.height) / 2);

window.setLocationRelativeTo(null);

window.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);

window.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

hide();

}

});

Toolkit.registerWindowCloseKeys(window.getRootPane(), new ActionListener() {

public void actionPerformed(ActionEvent actionEvent) {

hide();

}

});

Toolkit.setIcon(window);

colorListener = new ColorListener();

hueField.getDocument().addDocumentListener(colorListener);

saturationField.getDocument().addDocumentListener(colorListener);

brightnessField.getDocument().addDocumentListener(colorListener);

redField.getDocument().addDocumentListener(colorListener);

greenField.getDocument().addDocumentListener(colorListener);

blueField.getDocument().addDocumentListener(colorListener);

hexField.getDocument().addDocumentListener(colorListener);

setColor(initialColor);

// System.out.println("4: " + hexField.getInsets());

}

//hexField.setText("#FFFFFF");

public void show() {

window.setVisible(true);

}

public void hide() {

window.setVisible(false);

}

public Color getColor() {

return new Color(red, green, blue);

}

public void setColor(Color color) {

updateRGB(color.getRGB());

}

public String getHexColor() {

return "#" + PApplet.hex(red, 2) + PApplet.hex(green, 2) + PApplet.hex(blue, 2);

}

public class ColorListener implements DocumentListener {

public void changedUpdate(DocumentEvent e) {

//System.out.println("changed");

}

public void removeUpdate(DocumentEvent e) {

//System.out.println("remove");

}

boolean updating;

public void insertUpdate(DocumentEvent e) {

if (updating) return; // don't update forever recursively

updating = true;

Document doc = e.getDocument();

if (doc == hueField.getDocument()) {

hue = bounded(hue, hueField, 359);

updateRGB();

updateHex();

} else if (doc == saturationField.getDocument()) {

saturation = bounded(saturation, saturationField, 99);

updateRGB();

updateHex();

} else if (doc == brightnessField.getDocument()) {

brightness = bounded(brightness, brightnessField, 99);

updateRGB();

updateHex();

} else if (doc == redField.getDocument()) {

red = bounded(red, redField, 255);

updateHSB();

updateHex();

} else if (doc == greenField.getDocument()) {

green = bounded(green, greenField, 255);

updateHSB();

updateHex();

} else if (doc == blueField.getDocument()) {

blue = bounded(blue, blueField, 255);

updateHSB();

updateHex();

} else if (doc == hexField.getDocument()) {

String str = hexField.getText();

if (str.startsWith("#")) {

str = str.substring(1);

}

while (str.length() < 6) {

str += "0";

}

if (str.length() > 6) {

str = str.substring(0, 6);

}

updateRGB(Integer.parseInt(str, 16));

updateHSB();

}

range.repaint();

slider.repaint();

//colorPanel.setBackground(new Color(red, green, blue));

colorPanel.repaint();

updating = false;

}

/**

* Set the RGB values based on the current HSB values.

protected void updateRGB() {

updateRGB(Color.HSBtoRGB(hue / 359f,

saturation / 99f,

brightness / 99f));

}

/**

* Set the RGB values based on a calculated ARGB int.

* Used by both updateRGB() to set the color from the HSB values,

* and by updateHex(), to unpack the hex colors and assign them.

protected void updateRGB(int rgb) {

red = (rgb >> 16) & 0xff;

green = (rgb >> 8) & 0xff;

blue = rgb & 0xff;

redField.setText(String.valueOf(red));

greenField.setText(String.valueOf(green));

blueField.setText(String.valueOf(blue));

}

/**

* Set the HSB values based on the current RGB values.

protected void updateHSB() {

float hsb[] = new float[3];

Color.RGBtoHSB(red, green, blue, hsb);

hue = (int) (hsb[0] * 359.0f);

saturation = (int) (hsb[1] * 99.0f);

brightness = (int) (hsb[2] * 99.0f);

hueField.setText(String.valueOf(hue));

saturationField.setText(String.valueOf(saturation));

brightnessField.setText(String.valueOf(brightness));

}

protected void updateHex() {

hexField.setText(getHexColor());

}

/**

* Get the bounded value for a specific range. If the value is outside

* the max, you can't edit right away, so just act as if it's already

* been bounded and return the bounded value, then fire an event to set

* it to the value that was just returned.

protected int bounded(int current, final JTextField field, final int max) {

String text = field.getText();

if (text.length() == 0) {

return 0;

}

try {

int value = Integer.parseInt(text);

if (value > max) {

SwingUtilities.invokeLater(new Runnable() {

public void run() {

field.setText(String.valueOf(max));

}

});

return max;

}

return value;

} catch (NumberFormatException e) {

return current; // should not be reachable

}

protected Container createColorFields(String buttonName, ActionListener buttonListener) {

Box box = Box.createVerticalBox();

box.setAlignmentY(0);

final int GAP = Platform.isWindows() ? 5 : 0;

final int BETWEEN = Platform.isWindows() ? 8 : 6; //10;

Box row;

row = Box.createHorizontalBox();

if (Platform.isMacOS()) {

row.add(Box.createHorizontalStrut(17));

} else {

row.add(createFixedLabel(""));

}

// Can't just set the bg color of the panel because it also tints the bevel

// (on OS X), which looks odd. So instead we override paintComponent().

colorPanel = new JPanel() {

public void paintComponent(Graphics g) {

g.setColor(new Color(red, green, blue));

Dimension size = getSize();

g.fillRect(0, 0, size.width, size.height);

}

};

colorPanel.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

Dimension dim = new Dimension(70, 25);

colorPanel.setMinimumSize(dim);

colorPanel.setMaximumSize(dim);

colorPanel.setPreferredSize(dim);

row.add(colorPanel);

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(BETWEEN));

// if (Base.isMacOS()) { // need a little extra

// box.add(Box.createVerticalStrut(BETWEEN));

// }

row = Box.createHorizontalBox();

row.add(createFixedLabel("H"));

row.add(hueField = new NumberField(4, false));

row.add(new JLabel(" \u00B0")); // degree symbol

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(GAP));

row = Box.createHorizontalBox();

row.add(createFixedLabel("S"));

row.add(saturationField = new NumberField(4, false));

row.add(new JLabel(" %"));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(GAP));

row = Box.createHorizontalBox();

row.add(createFixedLabel("B"));

row.add(brightnessField = new NumberField(4, false));

row.add(new JLabel(" %"));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(BETWEEN));

row = Box.createHorizontalBox();

row.add(createFixedLabel("R"));

row.add(redField = new NumberField(4, false));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(GAP));

row = Box.createHorizontalBox();

row.add(createFixedLabel("G"));

row.add(greenField = new NumberField(4, false));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(GAP));

row = Box.createHorizontalBox();

row.add(createFixedLabel("B"));

row.add(blueField = new NumberField(4, false));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(BETWEEN));

row = Box.createHorizontalBox();

row.add(createFixedLabel(""));

// Windows needs extra space, OS X and Linux do not

// Mac OS X needs 6 because #CCCCCC is quite wide

final int hexCount = Platform.isWindows() ? 7 : 6;

row.add(hexField = new NumberField(hexCount, true));

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalStrut(GAP));

// // Not great, because the insets make things weird anyway

// //Dimension dim = new Dimension(hexField.getPreferredSize());

// Dimension dim = new Dimension(70, 20);

// colorPanel.setMinimumSize(dim);

// colorPanel.setMaximumSize(dim);

// colorPanel.setPreferredSize(dim);

//// colorPanel.setBorder(new EmptyBorder(hexField.getInsets()));

row = Box.createHorizontalBox();

if (Platform.isMacOS()) {

row.add(Box.createHorizontalStrut(11));

} else {

row.add(createFixedLabel(""));

}

JButton button = new JButton(buttonName);

button.addActionListener(buttonListener);

//System.out.println("button: " + button.getInsets());

row.add(button);

row.add(Box.createHorizontalGlue());

box.add(row);

row = Box.createHorizontalBox();

if (Platform.isMacOS()) {

row.add(Box.createHorizontalStrut(11));

} else {

row.add(createFixedLabel(""));

}

button = new JButton(Language.text("prompt.cancel"));

button.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

ColorChooser.this.hide();

}

});

row.add(button);

row.add(Box.createHorizontalGlue());

box.add(row);

box.add(Box.createVerticalGlue());

return box;

}

int labelH;

/**

* return a label of a fixed width

protected JLabel createFixedLabel(String title) {

JLabel label = new JLabel(title);

if (labelH == 0) {

labelH = label.getPreferredSize().height;

}

Dimension dim = new Dimension(15, labelH);

label.setPreferredSize(dim);

label.setMinimumSize(dim);

label.setMaximumSize(dim);

return label;

}

public class ColorRange extends JComponent {

static final int WIDE = 256;

static final int HIGH = 256;

private int lastX, lastY;

public ColorRange() {

setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));

addMouseListener(new MouseAdapter() {

@Override

public void mousePressed(MouseEvent e) {

updateMouse(e);

}

});

addMouseMotionListener(new MouseMotionAdapter() {

@Override

public void mouseDragged(MouseEvent e) {

updateMouse(e);

}

});

addKeyListener(new KeyAdapter() {

@Override

public void keyPressed(KeyEvent e) {

super.keyPressed(e);

if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {

ColorChooser.this.hide();

}

});

}

private void updateMouse(MouseEvent e) {

int mouseX = e.getX();

int mouseY = e.getY();

if ((mouseX >= 0) && (mouseX < WIDE) &&

(mouseY >= 0) && (mouseY < HIGH)) {

int nsaturation = (int) (100 * (mouseX / 255.0f));

int nbrightness = 100 - ((int) (100 * (mouseY / 255.0f)));

saturationField.setText(String.valueOf(nsaturation));

brightnessField.setText(String.valueOf(nbrightness));

lastX = mouseX;

lastY = mouseY;

}

@Override

public void paintComponent(Graphics g) {

super.paintComponent(g);

for (int j = 0; j < WIDE; j++) {

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

g.setColor(Color.getHSBColor(hue / 360f, i / 256f, (255 - j) / 256f));

g.fillRect(i, j, 1, 1);

}

g.setColor((brightness > 50) ? Color.BLACK : Color.WHITE);

g.drawRect(lastX - 5, lastY - 5, 10, 10);

}

@Override

public Dimension getPreferredSize() {

return new Dimension(WIDE, HIGH);

}

@Override

public Dimension getMinimumSize() {

return getPreferredSize();

}

@Override

public Dimension getMaximumSize() {

return getPreferredSize();

}

public class ColorSlider extends JComponent {

static final int WIDE = 20;

static final int HIGH = 256;

public ColorSlider() {

setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));

addMouseListener(new MouseAdapter() {

@Override

public void mousePressed(MouseEvent e) {

updateMouse(e);

}

});

addMouseMotionListener(new MouseMotionAdapter() {

@Override

public void mouseDragged(MouseEvent e) {

updateMouse(e);

}

});

addKeyListener(new KeyAdapter() {

@Override

public void keyPressed(KeyEvent e) {

super.keyPressed(e);

if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {

ColorChooser.this.hide();

}

});

}

private void updateMouse(MouseEvent e) {

int mouseX = e.getX();

int mouseY = e.getY();

if ((mouseX >= 0) && (mouseX < WIDE) &&

(mouseY >= 0) && (mouseY < HIGH)) {

int nhue = 359 - (int) (359 * (mouseY / 255.0f));

hueField.setText(String.valueOf(nhue));

}

public void paintComponent(Graphics g) {

super.paintComponent(g);

int sel = 255 - (int) (255 * (hue / 359.0));

for (int j = 0; j < HIGH; j++) {

Color color = Color.getHSBColor((255 - j) / 256f, 1, 1);

if (j == sel) {

color = Color.BLACK;

}

g.setColor(color);

g.drawRect(0, j, WIDE, 1);

}

public Dimension getPreferredSize() {

return new Dimension(WIDE, HIGH);

}

public Dimension getMinimumSize() {

return getPreferredSize();

}

public Dimension getMaximumSize() {

return getPreferredSize();

}

/**

* Extension of JTextField that only allows numbers

static class NumberField extends JTextField {

public boolean allowHex;

public NumberField(int cols, boolean allowHex) {

super(cols);

this.allowHex = allowHex;

}

protected Document createDefaultModel() {

return new NumberDocument(this);

}

public Dimension getPreferredSize() {

if (!allowHex) {

return new Dimension(45, super.getPreferredSize().height);

}

return super.getPreferredSize();

}

public Dimension getMinimumSize() {

return getPreferredSize();

}

public Dimension getMaximumSize() {

return getPreferredSize();

}

/**

* Document model to go with JTextField that only allows numbers.

static class NumberDocument extends PlainDocument {

NumberField parentField;

public NumberDocument(NumberField parentField) {

this.parentField = parentField;

//System.out.println("setting parent to " + parentSelector);

}

public void insertString(int offs, String str, AttributeSet a)

throws BadLocationException {

if (str == null) return;

char chars[] = str.toCharArray();

int charCount = 0;

// remove any non-digit chars

for (int i = 0; i < chars.length; i++) {

boolean ok = Character.isDigit(chars[i]);

if (parentField.allowHex) {

if ((chars[i] >= 'A') && (chars[i] <= 'F')) ok = true;

if ((chars[i] >= 'a') && (chars[i] <= 'f')) ok = true;

if ((offs == 0) && (i == 0) && (chars[i] == '#')) ok = true;

}

if (ok) {

if (charCount != i) { // shift if necessary

chars[charCount] = chars[i];

}

charCount++;

}

super.insertString(offs, new String(chars, 0, charCount), a);

// can't call any sort of methods on the enclosing class here

// seems to have something to do with how Document objects are set up

}

// static public void main(String[] args) {

// ColorSelector cs = new ColorSelector();

// cs.init(null);

// EventQueue.invokeLater(cs);

// }

}

processing/app/src/processing/app/ui/ColorChooser.java at master · unexCoder/processing · GitHub

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